diff --git a/camera/aidl/android/hardware/ICameraServiceProxy.aidl b/camera/aidl/android/hardware/ICameraServiceProxy.aidl
index 5dc23eb..7575948 100644
--- a/camera/aidl/android/hardware/ICameraServiceProxy.aidl
+++ b/camera/aidl/android/hardware/ICameraServiceProxy.aidl
@@ -46,8 +46,14 @@
     const int CAMERA_FACING_EXTERNAL = 2;
 
     /**
+     * Values for notifyCameraState api level
+     */
+     const int CAMERA_API_LEVEL_1 = 1;
+     const int CAMERA_API_LEVEL_2 = 2;
+
+    /**
      * Update the status of a camera device.
      */
     oneway void notifyCameraState(String cameraId, int facing, int newCameraState,
-            String clientName);
+            String clientName, int apiLevel);
 }
diff --git a/cmds/stagefright/SineSource.cpp b/cmds/stagefright/SineSource.cpp
index 9e40a0f..0ecc16c 100644
--- a/cmds/stagefright/SineSource.cpp
+++ b/cmds/stagefright/SineSource.cpp
@@ -89,7 +89,7 @@
         x += k;
     }
 
-    buffer->meta_data()->setInt64(
+    buffer->meta_data().setInt64(
             kKeyTime, ((int64_t)mPhase * 1000000) / mSampleRate);
 
     mPhase += numFramesPerBuffer;
diff --git a/cmds/stagefright/recordvideo.cpp b/cmds/stagefright/recordvideo.cpp
index b7a5066..a63b9b9 100644
--- a/cmds/stagefright/recordvideo.cpp
+++ b/cmds/stagefright/recordvideo.cpp
@@ -114,8 +114,8 @@
         x = x >= 0xa0 ? 0x60 : x + 1;
 #endif
         (*buffer)->set_range(0, mSize);
-        (*buffer)->meta_data()->clear();
-        (*buffer)->meta_data()->setInt64(
+        (*buffer)->meta_data().clear();
+        (*buffer)->meta_data().setInt64(
                 kKeyTime, (mNumFramesOutput * 1000000) / mFrameRate);
         ++mNumFramesOutput;
 
diff --git a/cmds/stagefright/stagefright.cpp b/cmds/stagefright/stagefright.cpp
index 5fa8304..936733d 100644
--- a/cmds/stagefright/stagefright.cpp
+++ b/cmds/stagefright/stagefright.cpp
@@ -253,7 +253,7 @@
                 shouldSeek = true;
             } else {
                 int64_t timestampUs;
-                CHECK(buffer->meta_data()->findInt64(kKeyTime, &timestampUs));
+                CHECK(buffer->meta_data().findInt64(kKeyTime, &timestampUs));
 
                 bool failed = false;
 
@@ -492,12 +492,12 @@
 
         if (mStreamType == AVC) {
             bool isIDR = isIDRFrame(*buffer);
-            (*buffer)->meta_data()->setInt32(kKeyIsSyncFrame, isIDR);
+            (*buffer)->meta_data().setInt32(kKeyIsSyncFrame, isIDR);
             if (isIDR) {
                 mSawFirstIDRFrame = true;
             }
         } else {
-            (*buffer)->meta_data()->setInt32(kKeyIsSyncFrame, true);
+            (*buffer)->meta_data().setInt32(kKeyIsSyncFrame, true);
         }
 
         if (mStreamType != AVC || mSawFirstIDRFrame) {
@@ -591,7 +591,7 @@
 
         if (err == OK) {
             int64_t timeUs;
-            CHECK(buffer->meta_data()->findInt64(kKeyTime, &timeUs));
+            CHECK(buffer->meta_data().findInt64(kKeyTime, &timeUs));
 
             printf("%" PRId64 "\t%" PRId64 "\t%" PRId64 "\n",
                    seekTimeUs, timeUs, seekTimeUs - timeUs);
diff --git a/include/media/MediaSourceBase.h b/include/media/MediaSourceBase.h
deleted file mode 120000
index fe227b1..0000000
--- a/include/media/MediaSourceBase.h
+++ /dev/null
@@ -1 +0,0 @@
-../../media/libmediaextractor/include/media/MediaSourceBase.h
\ No newline at end of file
diff --git a/include/media/MediaTrack.h b/include/media/MediaTrack.h
new file mode 120000
index 0000000..5a63287a
--- /dev/null
+++ b/include/media/MediaTrack.h
@@ -0,0 +1 @@
+../../media/libmediaextractor/include/media/MediaTrack.h
\ No newline at end of file
diff --git a/include/media/VorbisComment.h b/include/media/VorbisComment.h
new file mode 120000
index 0000000..adaa489
--- /dev/null
+++ b/include/media/VorbisComment.h
@@ -0,0 +1 @@
+../../media/libmediaextractor/include/media/VorbisComment.h
\ No newline at end of file
diff --git a/media/extractors/aac/AACExtractor.cpp b/media/extractors/aac/AACExtractor.cpp
index f6c8664..bbc1ff8 100644
--- a/media/extractors/aac/AACExtractor.cpp
+++ b/media/extractors/aac/AACExtractor.cpp
@@ -20,7 +20,7 @@
 
 #include "AACExtractor.h"
 #include <media/DataSourceBase.h>
-#include <media/MediaSourceBase.h>
+#include <media/MediaTrack.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/ADebug.h>
@@ -33,17 +33,18 @@
 
 namespace android {
 
-class AACSource : public MediaSourceBase {
+class AACSource : public MediaTrack {
 public:
-    AACSource(DataSourceBase *source,
-              const sp<MetaData> &meta,
-              const Vector<uint64_t> &offset_vector,
-              int64_t frame_duration_us);
+    AACSource(
+            DataSourceBase *source,
+            MetaDataBase &meta,
+            const Vector<uint64_t> &offset_vector,
+            int64_t frame_duration_us);
 
-    virtual status_t start(MetaData *params = NULL);
+    virtual status_t start(MetaDataBase *params = NULL);
     virtual status_t stop();
 
-    virtual sp<MetaData> getFormat();
+    virtual status_t getFormat(MetaDataBase&);
 
     virtual status_t read(
             MediaBufferBase **buffer, const ReadOptions *options = NULL);
@@ -54,7 +55,7 @@
 private:
     static const size_t kMaxFrameSize;
     DataSourceBase *mDataSource;
-    sp<MetaData> mMeta;
+    MetaDataBase mMeta;
 
     off64_t mOffset;
     int64_t mCurrentTimeUs;
@@ -132,19 +133,10 @@
 }
 
 AACExtractor::AACExtractor(
-        DataSourceBase *source, const sp<AMessage> &_meta)
+        DataSourceBase *source, off64_t offset)
     : mDataSource(source),
       mInitCheck(NO_INIT),
       mFrameDurationUs(0) {
-    sp<AMessage> meta = _meta;
-
-    if (meta == NULL) {
-        ALOGE("no metadata specified");
-        return;
-    }
-
-    int64_t offset;
-    CHECK(meta->findInt64("offset", &offset));
 
     uint8_t profile, sf_index, channel, header[2];
     if (mDataSource->readAt(offset + 2, &header, 2) < 2) {
@@ -159,7 +151,7 @@
     }
     channel = (header[0] & 0x1) << 2 | (header[1] >> 6);
 
-    mMeta = MakeAACCodecSpecificData(profile, sf_index, channel);
+    MakeAACCodecSpecificData(mMeta, profile, sf_index, channel);
 
     off64_t streamSize, numFrames = 0;
     size_t frameSize = 0;
@@ -182,7 +174,7 @@
         // Round up and get the duration
         mFrameDurationUs = (1024 * 1000000ll + (sr - 1)) / sr;
         duration = numFrames * mFrameDurationUs;
-        mMeta->setInt64(kKeyDuration, duration);
+        mMeta.setInt64(kKeyDuration, duration);
     }
 
     mInitCheck = OK;
@@ -191,23 +183,20 @@
 AACExtractor::~AACExtractor() {
 }
 
-sp<MetaData> AACExtractor::getMetaData() {
-    sp<MetaData> meta = new MetaData;
-
-    if (mInitCheck != OK) {
-        return meta;
+status_t AACExtractor::getMetaData(MetaDataBase &meta) {
+    meta.clear();
+    if (mInitCheck == OK) {
+        meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC_ADTS);
     }
 
-    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC_ADTS);
-
-    return meta;
+    return OK;
 }
 
 size_t AACExtractor::countTracks() {
     return mInitCheck == OK ? 1 : 0;
 }
 
-MediaSourceBase *AACExtractor::getTrack(size_t index) {
+MediaTrack *AACExtractor::getTrack(size_t index) {
     if (mInitCheck != OK || index != 0) {
         return NULL;
     }
@@ -215,12 +204,13 @@
     return new AACSource(mDataSource, mMeta, mOffsetVector, mFrameDurationUs);
 }
 
-sp<MetaData> AACExtractor::getTrackMetaData(size_t index, uint32_t /* flags */) {
+status_t AACExtractor::getTrackMetaData(MetaDataBase &meta, size_t index, uint32_t /* flags */) {
     if (mInitCheck != OK || index != 0) {
-        return NULL;
+        return UNKNOWN_ERROR;
     }
 
-    return mMeta;
+    meta = mMeta;
+    return OK;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -229,7 +219,8 @@
 const size_t AACSource::kMaxFrameSize = 8192;
 
 AACSource::AACSource(
-        DataSourceBase *source, const sp<MetaData> &meta,
+        DataSourceBase *source,
+        MetaDataBase &meta,
         const Vector<uint64_t> &offset_vector,
         int64_t frame_duration_us)
     : mDataSource(source),
@@ -248,7 +239,7 @@
     }
 }
 
-status_t AACSource::start(MetaData * /* params */) {
+status_t AACSource::start(MetaDataBase * /* params */) {
     CHECK(!mStarted);
 
     if (mOffsetVector.empty()) {
@@ -275,8 +266,9 @@
     return OK;
 }
 
-sp<MetaData> AACSource::getFormat() {
-    return mMeta;
+status_t AACSource::getFormat(MetaDataBase &meta) {
+    meta = mMeta;
+    return OK;
 }
 
 status_t AACSource::read(
@@ -319,8 +311,8 @@
     }
 
     buffer->set_range(0, frameSizeWithoutHeader);
-    buffer->meta_data()->setInt64(kKeyTime, mCurrentTimeUs);
-    buffer->meta_data()->setInt32(kKeyIsSyncFrame, 1);
+    buffer->meta_data().setInt64(kKeyTime, mCurrentTimeUs);
+    buffer->meta_data().setInt32(kKeyIsSyncFrame, 1);
 
     mOffset += frameSize;
     mCurrentTimeUs += mFrameDurationUs;
@@ -334,14 +326,8 @@
 static MediaExtractor* CreateExtractor(
         DataSourceBase *source,
         void *meta) {
-    sp<AMessage> metaData = static_cast<AMessage *>(meta);
-    return new AACExtractor(source, metaData);
-}
-
-static void FreeMeta(void *meta) {
-    if (meta != nullptr) {
-        static_cast<AMessage *>(meta)->decStrong(nullptr);
-    }
+    off64_t offset = *static_cast<off64_t*>(meta);
+    return new AACExtractor(source, offset);
 }
 
 static MediaExtractor::CreatorFunc Sniff(
@@ -386,12 +372,9 @@
     if ((header[0] == 0xff) && ((header[1] & 0xf6) == 0xf0)) {
         *confidence = 0.2;
 
-        AMessage *msg = new AMessage;
-        msg->setInt64("offset", pos);
-        *meta = msg;
-        *freeMeta = &FreeMeta;
-        // ref count will be decreased in FreeMeta.
-        msg->incStrong(nullptr);
+        off64_t *offPtr = (off64_t*) malloc(sizeof(off64_t));
+        *meta = offPtr;
+        *freeMeta = ::free;
 
         return CreateExtractor;
     }
diff --git a/media/extractors/aac/AACExtractor.h b/media/extractors/aac/AACExtractor.h
index e99699c..9dadbed 100644
--- a/media/extractors/aac/AACExtractor.h
+++ b/media/extractors/aac/AACExtractor.h
@@ -19,6 +19,7 @@
 #define AAC_EXTRACTOR_H_
 
 #include <media/MediaExtractor.h>
+#include <media/stagefright/MetaDataBase.h>
 
 #include <utils/Vector.h>
 
@@ -29,13 +30,13 @@
 
 class AACExtractor : public MediaExtractor {
 public:
-    AACExtractor(DataSourceBase *source, const sp<AMessage> &meta);
+    AACExtractor(DataSourceBase *source, off64_t offset);
 
     virtual size_t countTracks();
-    virtual MediaSourceBase *getTrack(size_t index);
-    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
+    virtual MediaTrack *getTrack(size_t index);
+    virtual status_t getTrackMetaData(MetaDataBase& meta, size_t index, uint32_t flags);
 
-    virtual sp<MetaData> getMetaData();
+    virtual status_t getMetaData(MetaDataBase& meta);
     virtual const char * name() { return "AACExtractor"; }
 
 protected:
@@ -43,7 +44,7 @@
 
 private:
     DataSourceBase *mDataSource;
-    sp<MetaData> mMeta;
+    MetaDataBase mMeta;
     status_t mInitCheck;
 
     Vector<uint64_t> mOffsetVector;
@@ -54,8 +55,7 @@
 };
 
 bool SniffAAC(
-        DataSourceBase *source, String8 *mimeType, float *confidence,
-        sp<AMessage> *);
+        DataSourceBase *source, String8 *mimeType, float *confidence, off64_t *offset);
 
 }  // namespace android
 
diff --git a/media/extractors/amr/AMRExtractor.cpp b/media/extractors/amr/AMRExtractor.cpp
index 59d9ef1..f56d5ef 100644
--- a/media/extractors/amr/AMRExtractor.cpp
+++ b/media/extractors/amr/AMRExtractor.cpp
@@ -21,7 +21,7 @@
 #include "AMRExtractor.h"
 
 #include <media/DataSourceBase.h>
-#include <media/MediaSourceBase.h>
+#include <media/MediaTrack.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/MediaBufferGroup.h>
 #include <media/stagefright/MediaDefs.h>
@@ -31,18 +31,19 @@
 
 namespace android {
 
-class AMRSource : public MediaSourceBase {
+class AMRSource : public MediaTrack {
 public:
-    AMRSource(DataSourceBase *source,
-              const sp<MetaData> &meta,
-              bool isWide,
-              const off64_t *offset_table,
-              size_t offset_table_length);
+    AMRSource(
+            DataSourceBase *source,
+            MetaDataBase &meta,
+            bool isWide,
+            const off64_t *offset_table,
+            size_t offset_table_length);
 
-    virtual status_t start(MetaData *params = NULL);
+    virtual status_t start(MetaDataBase *params = NULL);
     virtual status_t stop();
 
-    virtual sp<MetaData> getFormat();
+    virtual status_t getFormat(MetaDataBase &);
 
     virtual status_t read(
             MediaBufferBase **buffer, const ReadOptions *options = NULL);
@@ -52,7 +53,7 @@
 
 private:
     DataSourceBase *mDataSource;
-    sp<MetaData> mMeta;
+    MetaDataBase mMeta;
     bool mIsWide;
 
     off64_t mOffset;
@@ -116,25 +117,48 @@
     return OK;
 }
 
+static bool SniffAMR(
+        DataSourceBase *source, bool *isWide, float *confidence) {
+    char header[9];
+
+    if (source->readAt(0, header, sizeof(header)) != sizeof(header)) {
+        return false;
+    }
+
+    if (!memcmp(header, "#!AMR\n", 6)) {
+        if (isWide != nullptr) {
+            *isWide = false;
+        }
+        *confidence = 0.5;
+
+        return true;
+    } else if (!memcmp(header, "#!AMR-WB\n", 9)) {
+        if (isWide != nullptr) {
+            *isWide = true;
+        }
+        *confidence = 0.5;
+
+        return true;
+    }
+
+    return false;
+}
+
 AMRExtractor::AMRExtractor(DataSourceBase *source)
     : mDataSource(source),
       mInitCheck(NO_INIT),
       mOffsetTableLength(0) {
-    String8 mimeType;
     float confidence;
-    if (!SniffAMR(mDataSource, &mimeType, &confidence)) {
+    if (!SniffAMR(mDataSource, &mIsWide, &confidence)) {
         return;
     }
 
-    mIsWide = (mimeType == MEDIA_MIMETYPE_AUDIO_AMR_WB);
-
-    mMeta = new MetaData;
-    mMeta->setCString(
+    mMeta.setCString(
             kKeyMIMEType, mIsWide ? MEDIA_MIMETYPE_AUDIO_AMR_WB
                                   : MEDIA_MIMETYPE_AUDIO_AMR_NB);
 
-    mMeta->setInt32(kKeyChannelCount, 1);
-    mMeta->setInt32(kKeySampleRate, mIsWide ? 16000 : 8000);
+    mMeta.setInt32(kKeyChannelCount, 1);
+    mMeta.setInt32(kKeySampleRate, mIsWide ? 16000 : 8000);
 
     off64_t offset = mIsWide ? 9 : 6;
     off64_t streamSize;
@@ -161,7 +185,7 @@
             numFrames ++;
         }
 
-        mMeta->setInt64(kKeyDuration, duration);
+        mMeta.setInt64(kKeyDuration, duration);
     }
 
     mInitCheck = OK;
@@ -170,23 +194,21 @@
 AMRExtractor::~AMRExtractor() {
 }
 
-sp<MetaData> AMRExtractor::getMetaData() {
-    sp<MetaData> meta = new MetaData;
+status_t AMRExtractor::getMetaData(MetaDataBase &meta) {
+    meta.clear();
 
-    if (mInitCheck != OK) {
-        return meta;
+    if (mInitCheck == OK) {
+        meta.setCString(kKeyMIMEType, mIsWide ? "audio/amr-wb" : "audio/amr");
     }
 
-    meta->setCString(kKeyMIMEType, mIsWide ? "audio/amr-wb" : "audio/amr");
-
-    return meta;
+    return OK;
 }
 
 size_t AMRExtractor::countTracks() {
     return mInitCheck == OK ? 1 : 0;
 }
 
-MediaSourceBase *AMRExtractor::getTrack(size_t index) {
+MediaTrack *AMRExtractor::getTrack(size_t index) {
     if (mInitCheck != OK || index != 0) {
         return NULL;
     }
@@ -195,18 +217,19 @@
             mOffsetTable, mOffsetTableLength);
 }
 
-sp<MetaData> AMRExtractor::getTrackMetaData(size_t index, uint32_t /* flags */) {
+status_t AMRExtractor::getTrackMetaData(MetaDataBase &meta, size_t index, uint32_t /* flags */) {
     if (mInitCheck != OK || index != 0) {
-        return NULL;
+        return UNKNOWN_ERROR;
     }
 
-    return mMeta;
+    meta = mMeta;
+    return OK;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 
 AMRSource::AMRSource(
-        DataSourceBase *source, const sp<MetaData> &meta,
+        DataSourceBase *source, MetaDataBase &meta,
         bool isWide, const off64_t *offset_table, size_t offset_table_length)
     : mDataSource(source),
       mMeta(meta),
@@ -227,7 +250,7 @@
     }
 }
 
-status_t AMRSource::start(MetaData * /* params */) {
+status_t AMRSource::start(MetaDataBase * /* params */) {
     CHECK(!mStarted);
 
     mOffset = mIsWide ? 9 : 6;
@@ -249,8 +272,9 @@
     return OK;
 }
 
-sp<MetaData> AMRSource::getFormat() {
-    return mMeta;
+status_t AMRSource::getFormat(MetaDataBase &meta) {
+    meta = mMeta;
+    return OK;
 }
 
 status_t AMRSource::read(
@@ -325,8 +349,8 @@
     }
 
     buffer->set_range(0, frameSize);
-    buffer->meta_data()->setInt64(kKeyTime, mCurrentTimeUs);
-    buffer->meta_data()->setInt32(kKeyIsSyncFrame, 1);
+    buffer->meta_data().setInt64(kKeyTime, mCurrentTimeUs);
+    buffer->meta_data().setInt32(kKeyIsSyncFrame, 1);
 
     mOffset += frameSize;
     mCurrentTimeUs += 20000;  // Each frame is 20ms
@@ -338,33 +362,6 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
-bool SniffAMR(
-        DataSourceBase *source, String8 *mimeType, float *confidence) {
-    char header[9];
-
-    if (source->readAt(0, header, sizeof(header)) != sizeof(header)) {
-        return false;
-    }
-
-    if (!memcmp(header, "#!AMR\n", 6)) {
-        if (mimeType != nullptr) {
-            *mimeType = MEDIA_MIMETYPE_AUDIO_AMR_NB;
-        }
-        *confidence = 0.5;
-
-        return true;
-    } else if (!memcmp(header, "#!AMR-WB\n", 9)) {
-        if (mimeType != nullptr) {
-            *mimeType = MEDIA_MIMETYPE_AUDIO_AMR_WB;
-        }
-        *confidence = 0.5;
-
-        return true;
-    }
-
-    return false;
-}
-
 extern "C" {
 // This is the only symbol that needs to be exported
 __attribute__ ((visibility ("default")))
diff --git a/media/extractors/amr/AMRExtractor.h b/media/extractors/amr/AMRExtractor.h
index b8b44ea..c90b325 100644
--- a/media/extractors/amr/AMRExtractor.h
+++ b/media/extractors/amr/AMRExtractor.h
@@ -20,6 +20,7 @@
 
 #include <utils/Errors.h>
 #include <media/MediaExtractor.h>
+#include <media/stagefright/MetaDataBase.h>
 
 namespace android {
 
@@ -32,10 +33,10 @@
     explicit AMRExtractor(DataSourceBase *source);
 
     virtual size_t countTracks();
-    virtual MediaSourceBase *getTrack(size_t index);
-    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
+    virtual MediaTrack *getTrack(size_t index);
+    virtual status_t getTrackMetaData(MetaDataBase& meta, size_t index, uint32_t flags);
 
-    virtual sp<MetaData> getMetaData();
+    virtual status_t getMetaData(MetaDataBase& meta);
     virtual const char * name() { return "AMRExtractor"; }
 
 protected:
@@ -43,7 +44,7 @@
 
 private:
     DataSourceBase *mDataSource;
-    sp<MetaData> mMeta;
+    MetaDataBase mMeta;
     status_t mInitCheck;
     bool mIsWide;
 
@@ -54,9 +55,6 @@
     AMRExtractor &operator=(const AMRExtractor &);
 };
 
-bool SniffAMR(
-        DataSourceBase *source, String8 *mimeType, float *confidence);
-
 }  // namespace android
 
 #endif  // AMR_EXTRACTOR_H_
diff --git a/media/extractors/amr/Android.bp b/media/extractors/amr/Android.bp
index e5bbe31..bd8a00c 100644
--- a/media/extractors/amr/Android.bp
+++ b/media/extractors/amr/Android.bp
@@ -10,7 +10,6 @@
         "liblog",
         "libmediaextractor",
         "libstagefright_foundation",
-        "libutils",
     ],
 
     name: "libamrextractor",
diff --git a/media/extractors/flac/Android.bp b/media/extractors/flac/Android.bp
index 84ba6d3..0160ca4 100644
--- a/media/extractors/flac/Android.bp
+++ b/media/extractors/flac/Android.bp
@@ -11,7 +11,6 @@
         "liblog",
         "libmediaextractor",
         "libstagefright_foundation",
-        "libutils",
     ],
 
     static_libs: [
diff --git a/media/extractors/flac/FLACExtractor.cpp b/media/extractors/flac/FLACExtractor.cpp
index 2c5e43e..e3da259 100644
--- a/media/extractors/flac/FLACExtractor.cpp
+++ b/media/extractors/flac/FLACExtractor.cpp
@@ -23,11 +23,11 @@
 #include "FLAC/stream_decoder.h"
 
 #include <media/DataSourceBase.h>
-#include <media/MediaSourceBase.h>
+#include <media/MediaTrack.h>
+#include <media/VorbisComment.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/base64.h>
-#include <media/stagefright/foundation/ByteUtils.h>
 #include <media/stagefright/MediaBufferGroup.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MetaData.h>
@@ -35,142 +35,18 @@
 
 namespace android {
 
-// also exists in OggExtractor, candidate for moving to utility/support library?
-static void extractAlbumArt(
-        const sp<MetaData> &fileMeta, const void *data, size_t size) {
-    ALOGV("extractAlbumArt from '%s'", (const char *)data);
-
-    sp<ABuffer> flacBuffer = decodeBase64(AString((const char *)data, size));
-    if (flacBuffer == NULL) {
-        ALOGE("malformed base64 encoded data.");
-        return;
-    }
-
-    size_t flacSize = flacBuffer->size();
-    uint8_t *flac = flacBuffer->data();
-    ALOGV("got flac of size %zu", flacSize);
-
-    uint32_t picType;
-    uint32_t typeLen;
-    uint32_t descLen;
-    uint32_t dataLen;
-    char type[128];
-
-    if (flacSize < 8) {
-        return;
-    }
-
-    picType = U32_AT(flac);
-
-    if (picType != 3) {
-        // This is not a front cover.
-        return;
-    }
-
-    typeLen = U32_AT(&flac[4]);
-    if (typeLen > sizeof(type) - 1) {
-        return;
-    }
-
-    // we've already checked above that flacSize >= 8
-    if (flacSize - 8 < typeLen) {
-        return;
-    }
-
-    memcpy(type, &flac[8], typeLen);
-    type[typeLen] = '\0';
-
-    ALOGV("picType = %d, type = '%s'", picType, type);
-
-    if (!strcmp(type, "-->")) {
-        // This is not inline cover art, but an external url instead.
-        return;
-    }
-
-    if (flacSize < 32 || flacSize - 32 < typeLen) {
-        return;
-    }
-
-    descLen = U32_AT(&flac[8 + typeLen]);
-    if (flacSize - 32 - typeLen < descLen) {
-        return;
-    }
-
-    dataLen = U32_AT(&flac[8 + typeLen + 4 + descLen + 16]);
-
-    // we've already checked above that (flacSize - 32 - typeLen - descLen) >= 0
-    if (flacSize - 32 - typeLen - descLen < dataLen) {
-        return;
-    }
-
-    ALOGV("got image data, %zu trailing bytes",
-         flacSize - 32 - typeLen - descLen - dataLen);
-
-    fileMeta->setData(
-            kKeyAlbumArt, 0, &flac[8 + typeLen + 4 + descLen + 20], dataLen);
-
-    fileMeta->setCString(kKeyAlbumArtMIME, type);
-}
-
-// also exists in OggExtractor, candidate for moving to utility/support library?
-static void parseVorbisComment(
-        const sp<MetaData> &fileMeta, const char *comment, size_t commentLength)
-{
-    struct {
-        const char *const mTag;
-        uint32_t mKey;
-    } kMap[] = {
-        { "TITLE", kKeyTitle },
-        { "ARTIST", kKeyArtist },
-        { "ALBUMARTIST", kKeyAlbumArtist },
-        { "ALBUM ARTIST", kKeyAlbumArtist },
-        { "COMPILATION", kKeyCompilation },
-        { "ALBUM", kKeyAlbum },
-        { "COMPOSER", kKeyComposer },
-        { "GENRE", kKeyGenre },
-        { "AUTHOR", kKeyAuthor },
-        { "TRACKNUMBER", kKeyCDTrackNumber },
-        { "DISCNUMBER", kKeyDiscNumber },
-        { "DATE", kKeyDate },
-        { "YEAR", kKeyYear },
-        { "LYRICIST", kKeyWriter },
-        { "METADATA_BLOCK_PICTURE", kKeyAlbumArt },
-        { "ANDROID_LOOP", kKeyAutoLoop },
-    };
-
-        for (size_t j = 0; j < sizeof(kMap) / sizeof(kMap[0]); ++j) {
-            size_t tagLen = strlen(kMap[j].mTag);
-            if (!strncasecmp(kMap[j].mTag, comment, tagLen)
-                    && comment[tagLen] == '=') {
-                if (kMap[j].mKey == kKeyAlbumArt) {
-                    extractAlbumArt(
-                            fileMeta,
-                            &comment[tagLen + 1],
-                            commentLength - tagLen - 1);
-                } else if (kMap[j].mKey == kKeyAutoLoop) {
-                    if (!strcasecmp(&comment[tagLen + 1], "true")) {
-                        fileMeta->setInt32(kKeyAutoLoop, true);
-                    }
-                } else {
-                    fileMeta->setCString(kMap[j].mKey, &comment[tagLen + 1]);
-                }
-            }
-        }
-
-}
-
 class FLACParser;
 
-class FLACSource : public MediaSourceBase {
+class FLACSource : public MediaTrack {
 
 public:
     FLACSource(
             DataSourceBase *dataSource,
-            const sp<MetaData> &trackMetadata);
+            MetaDataBase &meta);
 
-    virtual status_t start(MetaData *params);
+    virtual status_t start(MetaDataBase *params);
     virtual status_t stop();
-    virtual sp<MetaData> getFormat();
+    virtual status_t getFormat(MetaDataBase &meta);
 
     virtual status_t read(
             MediaBufferBase **buffer, const ReadOptions *options = NULL);
@@ -180,13 +56,11 @@
 
 private:
     DataSourceBase *mDataSource;
-    sp<MetaData> mTrackMetadata;
-    sp<FLACParser> mParser;
+    MetaDataBase mTrackMetadata;
+    FLACParser *mParser;
     bool mInitCheck;
     bool mStarted;
 
-    status_t init();
-
     // no copy constructor or assignment
     FLACSource(const FLACSource &);
     FLACSource &operator=(const FLACSource &);
@@ -195,7 +69,7 @@
 
 // FLACParser wraps a C libFLAC parser aka stream decoder
 
-class FLACParser : public RefBase {
+class FLACParser {
 
 public:
     enum {
@@ -205,8 +79,10 @@
     explicit FLACParser(
         DataSourceBase *dataSource,
         // If metadata pointers aren't provided, we don't fill them
-        const sp<MetaData> &fileMetadata = 0,
-        const sp<MetaData> &trackMetadata = 0);
+        MetaDataBase *fileMetadata = 0,
+        MetaDataBase *trackMetadata = 0);
+
+    virtual ~FLACParser();
 
     status_t initCheck() const {
         return mInitCheck;
@@ -239,13 +115,10 @@
         return readBuffer(true, sample);
     }
 
-protected:
-    virtual ~FLACParser();
-
 private:
     DataSourceBase *mDataSource;
-    sp<MetaData> mFileMetadata;
-    sp<MetaData> mTrackMetadata;
+    MetaDataBase *mFileMetadata;
+    MetaDataBase *mTrackMetadata;
     bool mInitCheck;
 
     // media buffers
@@ -613,8 +486,8 @@
 
 FLACParser::FLACParser(
         DataSourceBase *dataSource,
-        const sp<MetaData> &fileMetadata,
-        const sp<MetaData> &trackMetadata)
+        MetaDataBase *fileMetadata,
+        MetaDataBase *trackMetadata)
     : mDataSource(dataSource),
       mFileMetadata(fileMetadata),
       mTrackMetadata(trackMetadata),
@@ -825,8 +698,8 @@
     CHECK(mWriteHeader.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
     FLAC__uint64 sampleNumber = mWriteHeader.number.sample_number;
     int64_t timeUs = (1000000LL * sampleNumber) / getSampleRate();
-    buffer->meta_data()->setInt64(kKeyTime, timeUs);
-    buffer->meta_data()->setInt32(kKeyIsSyncFrame, 1);
+    buffer->meta_data().setInt64(kKeyTime, timeUs);
+    buffer->meta_data().setInt32(kKeyIsSyncFrame, 1);
     return buffer;
 }
 
@@ -834,7 +707,7 @@
 
 FLACSource::FLACSource(
         DataSourceBase *dataSource,
-        const sp<MetaData> &trackMetadata)
+        MetaDataBase &trackMetadata)
     : mDataSource(dataSource),
       mTrackMetadata(trackMetadata),
       mParser(0),
@@ -842,7 +715,9 @@
       mStarted(false)
 {
     ALOGV("FLACSource::FLACSource");
-    mInitCheck = init();
+    // re-use the same track metadata passed into constructor from FLACExtractor
+    mParser = new FLACParser(mDataSource);
+    mInitCheck  = mParser->initCheck();
 }
 
 FLACSource::~FLACSource()
@@ -851,9 +726,10 @@
     if (mStarted) {
         stop();
     }
+    delete mParser;
 }
 
-status_t FLACSource::start(MetaData * /* params */)
+status_t FLACSource::start(MetaDataBase * /* params */)
 {
     ALOGV("FLACSource::start");
 
@@ -875,9 +751,10 @@
     return OK;
 }
 
-sp<MetaData> FLACSource::getFormat()
+status_t FLACSource::getFormat(MetaDataBase &meta)
 {
-    return mTrackMetadata;
+    meta = mTrackMetadata;
+    return OK;
 }
 
 status_t FLACSource::read(
@@ -907,28 +784,24 @@
     return buffer != NULL ? (status_t) OK : (status_t) ERROR_END_OF_STREAM;
 }
 
-status_t FLACSource::init()
-{
-    ALOGV("FLACSource::init");
-    // re-use the same track metadata passed into constructor from FLACExtractor
-    mParser = new FLACParser(mDataSource);
-    return mParser->initCheck();
-}
-
 // FLACExtractor
 
 FLACExtractor::FLACExtractor(
         DataSourceBase *dataSource)
     : mDataSource(dataSource),
+      mParser(nullptr),
       mInitCheck(false)
 {
     ALOGV("FLACExtractor::FLACExtractor");
-    mInitCheck = init();
+    // FLACParser will fill in the metadata for us
+    mParser = new FLACParser(mDataSource, &mFileMetadata, &mTrackMetadata);
+    mInitCheck = mParser->initCheck();
 }
 
 FLACExtractor::~FLACExtractor()
 {
     ALOGV("~FLACExtractor::FLACExtractor");
+    delete mParser;
 }
 
 size_t FLACExtractor::countTracks()
@@ -936,7 +809,7 @@
     return mInitCheck == OK ? 1 : 0;
 }
 
-MediaSourceBase *FLACExtractor::getTrack(size_t index)
+MediaTrack *FLACExtractor::getTrack(size_t index)
 {
     if (mInitCheck != OK || index > 0) {
         return NULL;
@@ -944,26 +817,20 @@
     return new FLACSource(mDataSource, mTrackMetadata);
 }
 
-sp<MetaData> FLACExtractor::getTrackMetaData(
+status_t FLACExtractor::getTrackMetaData(
+        MetaDataBase &meta,
         size_t index, uint32_t /* flags */) {
     if (mInitCheck != OK || index > 0) {
-        return NULL;
+        return UNKNOWN_ERROR;
     }
-    return mTrackMetadata;
+    meta = mTrackMetadata;
+    return OK;
 }
 
-status_t FLACExtractor::init()
+status_t FLACExtractor::getMetaData(MetaDataBase &meta)
 {
-    mFileMetadata = new MetaData;
-    mTrackMetadata = new MetaData;
-    // FLACParser will fill in the metadata for us
-    mParser = new FLACParser(mDataSource, mFileMetadata, mTrackMetadata);
-    return mParser->initCheck();
-}
-
-sp<MetaData> FLACExtractor::getMetaData()
-{
-    return mFileMetadata;
+    meta = mFileMetadata;
+    return OK;
 }
 
 // Sniffer
diff --git a/media/extractors/flac/FLACExtractor.h b/media/extractors/flac/FLACExtractor.h
index f41d878..7fb6ec6 100644
--- a/media/extractors/flac/FLACExtractor.h
+++ b/media/extractors/flac/FLACExtractor.h
@@ -19,6 +19,7 @@
 
 #include <media/DataSourceBase.h>
 #include <media/MediaExtractor.h>
+#include <media/stagefright/MetaDataBase.h>
 #include <utils/String8.h>
 
 namespace android {
@@ -31,10 +32,10 @@
     explicit FLACExtractor(DataSourceBase *source);
 
     virtual size_t countTracks();
-    virtual MediaSourceBase *getTrack(size_t index);
-    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
+    virtual MediaTrack *getTrack(size_t index);
+    virtual status_t getTrackMetaData(MetaDataBase& meta, size_t index, uint32_t flags);
 
-    virtual sp<MetaData> getMetaData();
+    virtual status_t getMetaData(MetaDataBase& meta);
     virtual const char * name() { return "FLACExtractor"; }
 
 protected:
@@ -42,14 +43,12 @@
 
 private:
     DataSourceBase *mDataSource;
-    sp<FLACParser> mParser;
+    FLACParser *mParser;
     status_t mInitCheck;
-    sp<MetaData> mFileMetadata;
+    MetaDataBase mFileMetadata;
 
     // There is only one track
-    sp<MetaData> mTrackMetadata;
-
-    status_t init();
+    MetaDataBase mTrackMetadata;
 
     FLACExtractor(const FLACExtractor &);
     FLACExtractor &operator=(const FLACExtractor &);
diff --git a/media/extractors/midi/Android.bp b/media/extractors/midi/Android.bp
index 9af128e..5412e99 100644
--- a/media/extractors/midi/Android.bp
+++ b/media/extractors/midi/Android.bp
@@ -9,8 +9,7 @@
     shared_libs: [
         "liblog",
         "libmediaextractor",
-        "libstagefright_foundation",
-        "libutils",
+        "libstagefright_foundation"
     ],
 
     static_libs: [
diff --git a/media/extractors/midi/MidiExtractor.cpp b/media/extractors/midi/MidiExtractor.cpp
index cf446db..949fbe0 100644
--- a/media/extractors/midi/MidiExtractor.cpp
+++ b/media/extractors/midi/MidiExtractor.cpp
@@ -25,7 +25,7 @@
 #include <media/stagefright/MediaBufferGroup.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MetaData.h>
-#include <media/MediaSourceBase.h>
+#include <media/MediaTrack.h>
 #include <libsonivox/eas_reverb.h>
 
 namespace android {
@@ -33,16 +33,16 @@
 // how many Sonivox output buffers to aggregate into one MediaBufferBase
 static const int NUM_COMBINE_BUFFERS = 4;
 
-class MidiSource : public MediaSourceBase {
+class MidiSource : public MediaTrack {
 
 public:
     MidiSource(
-            const sp<MidiEngine> &engine,
-            const sp<MetaData> &trackMetadata);
+            MidiEngine &engine,
+            MetaDataBase &trackMetadata);
 
-    virtual status_t start(MetaData *params);
+    virtual status_t start(MetaDataBase *params);
     virtual status_t stop();
-    virtual sp<MetaData> getFormat();
+    virtual status_t getFormat(MetaDataBase&);
 
     virtual status_t read(
             MediaBufferBase **buffer, const ReadOptions *options = NULL);
@@ -51,8 +51,8 @@
     virtual ~MidiSource();
 
 private:
-    sp<MidiEngine> mEngine;
-    sp<MetaData> mTrackMetadata;
+    MidiEngine &mEngine;
+    MetaDataBase &mTrackMetadata;
     bool mInitCheck;
     bool mStarted;
 
@@ -68,8 +68,8 @@
 // Midisource
 
 MidiSource::MidiSource(
-        const sp<MidiEngine> &engine,
-        const sp<MetaData> &trackMetadata)
+        MidiEngine &engine,
+        MetaDataBase &trackMetadata)
     : mEngine(engine),
       mTrackMetadata(trackMetadata),
       mInitCheck(false),
@@ -87,13 +87,13 @@
     }
 }
 
-status_t MidiSource::start(MetaData * /* params */)
+status_t MidiSource::start(MetaDataBase * /* params */)
 {
     ALOGV("MidiSource::start");
 
     CHECK(!mStarted);
     mStarted = true;
-    mEngine->allocateBuffers();
+    mEngine.allocateBuffers();
     return OK;
 }
 
@@ -103,14 +103,15 @@
 
     CHECK(mStarted);
     mStarted = false;
-    mEngine->releaseBuffers();
+    mEngine.releaseBuffers();
 
     return OK;
 }
 
-sp<MetaData> MidiSource::getFormat()
+status_t MidiSource::getFormat(MetaDataBase &meta)
 {
-    return mTrackMetadata;
+    meta = mTrackMetadata;
+    return OK;
 }
 
 status_t MidiSource::read(
@@ -125,9 +126,9 @@
         if (seekTimeUs <= 0LL) {
             seekTimeUs = 0LL;
         }
-        mEngine->seekTo(seekTimeUs);
+        mEngine.seekTo(seekTimeUs);
     }
-    buffer = mEngine->readBuffer();
+    buffer = mEngine.readBuffer();
     *outBuffer = buffer;
     ALOGV("MidiSource::read %p done", this);
     return buffer != NULL ? (status_t) OK : (status_t) ERROR_END_OF_STREAM;
@@ -142,8 +143,8 @@
 // MidiEngine
 
 MidiEngine::MidiEngine(DataSourceBase *dataSource,
-        const sp<MetaData> &fileMetadata,
-        const sp<MetaData> &trackMetadata) :
+        MetaDataBase *fileMetadata,
+        MetaDataBase *trackMetadata) :
             mGroup(NULL),
             mEasData(NULL),
             mEasHandle(NULL),
@@ -191,7 +192,7 @@
         EAS_Shutdown(mEasData);
     }
     delete mGroup;
-
+    delete mIoWrapper;
 }
 
 status_t MidiEngine::initCheck() {
@@ -238,7 +239,7 @@
     EAS_I32 timeMs;
     EAS_GetLocation(mEasData, mEasHandle, &timeMs);
     int64_t timeUs = 1000ll * timeMs;
-    buffer->meta_data()->setInt64(kKeyTime, timeUs);
+    buffer->meta_data().setInt64(kKeyTime, timeUs);
 
     EAS_PCM* p = (EAS_PCM*) buffer->data();
     int numBytesOutput = 0;
@@ -266,9 +267,7 @@
       mInitCheck(false)
 {
     ALOGV("MidiExtractor ctor");
-    mFileMetadata = new MetaData;
-    mTrackMetadata = new MetaData;
-    mEngine = new MidiEngine(mDataSource, mFileMetadata, mTrackMetadata);
+    mEngine = new MidiEngine(mDataSource, &mFileMetadata, &mTrackMetadata);
     mInitCheck = mEngine->initCheck();
 }
 
@@ -282,35 +281,38 @@
     return mInitCheck == OK ? 1 : 0;
 }
 
-MediaSourceBase *MidiExtractor::getTrack(size_t index)
+MediaTrack *MidiExtractor::getTrack(size_t index)
 {
     if (mInitCheck != OK || index > 0) {
         return NULL;
     }
-    return new MidiSource(mEngine, mTrackMetadata);
+    return new MidiSource(*mEngine, mTrackMetadata);
 }
 
-sp<MetaData> MidiExtractor::getTrackMetaData(
+status_t MidiExtractor::getTrackMetaData(
+        MetaDataBase &meta,
         size_t index, uint32_t /* flags */) {
     ALOGV("MidiExtractor::getTrackMetaData");
     if (mInitCheck != OK || index > 0) {
-        return NULL;
+        return UNKNOWN_ERROR;
     }
-    return mTrackMetadata;
+    meta = mTrackMetadata;
+    return OK;
 }
 
-sp<MetaData> MidiExtractor::getMetaData()
+status_t MidiExtractor::getMetaData(MetaDataBase &meta)
 {
     ALOGV("MidiExtractor::getMetaData");
-    return mFileMetadata;
+    meta = mFileMetadata;
+    return OK;
 }
 
 // Sniffer
 
 bool SniffMidi(DataSourceBase *source, float *confidence)
 {
-    sp<MidiEngine> p = new MidiEngine(source, NULL, NULL);
-    if (p->initCheck() == OK) {
+    MidiEngine p(source, NULL, NULL);
+    if (p.initCheck() == OK) {
         *confidence = 0.8;
         ALOGV("SniffMidi: yes");
         return true;
diff --git a/media/extractors/midi/MidiExtractor.h b/media/extractors/midi/MidiExtractor.h
index 4274513..244dd0f 100644
--- a/media/extractors/midi/MidiExtractor.h
+++ b/media/extractors/midi/MidiExtractor.h
@@ -21,17 +21,18 @@
 #include <media/MediaExtractor.h>
 #include <media/stagefright/MediaBufferBase.h>
 #include <media/stagefright/MediaBufferGroup.h>
+#include <media/stagefright/MetaDataBase.h>
 #include <media/MidiIoWrapper.h>
 #include <utils/String8.h>
 #include <libsonivox/eas.h>
 
 namespace android {
 
-class MidiEngine : public RefBase {
+class MidiEngine {
 public:
-    MidiEngine(DataSourceBase *dataSource,
-            const sp<MetaData> &fileMetadata,
-            const sp<MetaData> &trackMetadata);
+    explicit MidiEngine(DataSourceBase *dataSource,
+            MetaDataBase *fileMetadata,
+            MetaDataBase *trackMetadata);
     ~MidiEngine();
 
     status_t initCheck();
@@ -41,7 +42,7 @@
     status_t seekTo(int64_t positionUs);
     MediaBufferBase* readBuffer();
 private:
-    sp<MidiIoWrapper> mIoWrapper;
+    MidiIoWrapper *mIoWrapper;
     MediaBufferGroup *mGroup;
     EAS_DATA_HANDLE mEasData;
     EAS_HANDLE mEasHandle;
@@ -55,10 +56,10 @@
     explicit MidiExtractor(DataSourceBase *source);
 
     virtual size_t countTracks();
-    virtual MediaSourceBase *getTrack(size_t index);
-    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
+    virtual MediaTrack *getTrack(size_t index);
+    virtual status_t getTrackMetaData(MetaDataBase& meta, size_t index, uint32_t flags);
 
-    virtual sp<MetaData> getMetaData();
+    virtual status_t getMetaData(MetaDataBase& meta);
     virtual const char * name() { return "MidiExtractor"; }
 
 protected:
@@ -67,12 +68,12 @@
 private:
     DataSourceBase *mDataSource;
     status_t mInitCheck;
-    sp<MetaData> mFileMetadata;
+    MetaDataBase mFileMetadata;
 
     // There is only one track
-    sp<MetaData> mTrackMetadata;
+    MetaDataBase mTrackMetadata;
 
-    sp<MidiEngine> mEngine;
+    MidiEngine *mEngine;
 
     EAS_DATA_HANDLE     mEasData;
     EAS_HANDLE          mEasHandle;
diff --git a/media/extractors/mkv/MatroskaExtractor.cpp b/media/extractors/mkv/MatroskaExtractor.cpp
index 65988d3..5592a88 100644
--- a/media/extractors/mkv/MatroskaExtractor.cpp
+++ b/media/extractors/mkv/MatroskaExtractor.cpp
@@ -22,7 +22,7 @@
 #include "MatroskaExtractor.h"
 
 #include <media/DataSourceBase.h>
-#include <media/MediaSourceBase.h>
+#include <media/MediaTrack.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AUtils.h>
 #include <media/stagefright/foundation/ABuffer.h>
@@ -121,13 +121,13 @@
     BlockIterator &operator=(const BlockIterator &);
 };
 
-struct MatroskaSource : public MediaSourceBase {
+struct MatroskaSource : public MediaTrack {
     MatroskaSource(MatroskaExtractor *extractor, size_t index);
 
-    virtual status_t start(MetaData *params);
+    virtual status_t start(MetaDataBase *params);
     virtual status_t stop();
 
-    virtual sp<MetaData> getFormat();
+    virtual status_t getFormat(MetaDataBase &);
 
     virtual status_t read(
             MediaBufferBase **buffer, const ReadOptions *options);
@@ -219,10 +219,10 @@
                  mExtractor->mTracks.itemAt(index).mTrackNum,
                  index),
       mNALSizeLen(-1) {
-    sp<MetaData> meta = mExtractor->mTracks.itemAt(index).mMeta;
+    MetaDataBase &meta = mExtractor->mTracks.editItemAt(index).mMeta;
 
     const char *mime;
-    CHECK(meta->findCString(kKeyMIMEType, &mime));
+    CHECK(meta.findCString(kKeyMIMEType, &mime));
 
     mIsAudio = !strncasecmp("audio/", mime, 6);
 
@@ -233,11 +233,11 @@
         const uint8_t *avcc;
         size_t avccSize;
         int32_t nalSizeLen = 0;
-        if (meta->findInt32(kKeyNalLengthSize, &nalSizeLen)) {
+        if (meta.findInt32(kKeyNalLengthSize, &nalSizeLen)) {
             if (nalSizeLen >= 0 && nalSizeLen <= 4) {
                 mNALSizeLen = nalSizeLen;
             }
-        } else if (meta->findData(kKeyAVCC, &dummy, (const void **)&avcc, &avccSize)
+        } else if (meta.findData(kKeyAVCC, &dummy, (const void **)&avcc, &avccSize)
                 && avccSize >= 5u) {
             mNALSizeLen = 1 + (avcc[4] & 3);
             ALOGV("mNALSizeLen = %zd", mNALSizeLen);
@@ -250,7 +250,7 @@
         uint32_t dummy;
         const uint8_t *hvcc;
         size_t hvccSize;
-        if (meta->findData(kKeyHVCC, &dummy, (const void **)&hvcc, &hvccSize)
+        if (meta.findData(kKeyHVCC, &dummy, (const void **)&hvcc, &hvccSize)
                 && hvccSize >= 22u) {
             mNALSizeLen = 1 + (hvcc[14+7] & 3);
             ALOGV("mNALSizeLen = %zu", mNALSizeLen);
@@ -266,7 +266,7 @@
     clearPendingFrames();
 }
 
-status_t MatroskaSource::start(MetaData * /* params */) {
+status_t MatroskaSource::start(MetaDataBase * /* params */) {
     if (mType == AVC && mNALSizeLen < 0) {
         return ERROR_MALFORMED;
     }
@@ -282,8 +282,9 @@
     return OK;
 }
 
-sp<MetaData> MatroskaSource::getFormat() {
-    return mExtractor->mTracks.itemAt(mTrackIndex).mMeta;
+status_t MatroskaSource::getFormat(MetaDataBase &meta) {
+    meta = mExtractor->mTracks.itemAt(mTrackIndex).mMeta;
+    return OK;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -589,7 +590,7 @@
         return ERROR_MALFORMED;
     }
 
-    sp<MetaData> meta = mbuf->meta_data();
+    MetaDataBase &meta = mbuf->meta_data();
     if (blockEncrypted) {
         /*
          *  0                   1                   2                   3
@@ -612,13 +613,13 @@
         uint32_t type;
         const uint8_t *keyId;
         size_t keyIdSize;
-        sp<MetaData> trackMeta = mExtractor->mTracks.itemAt(mTrackIndex).mMeta;
-        CHECK(trackMeta->findData(kKeyCryptoKey, &type, (const void **)&keyId, &keyIdSize));
-        meta->setData(kKeyCryptoKey, 0, keyId, keyIdSize);
+        const MetaDataBase &trackMeta = mExtractor->mTracks.itemAt(mTrackIndex).mMeta;
+        CHECK(trackMeta.findData(kKeyCryptoKey, &type, (const void **)&keyId, &keyIdSize));
+        meta.setData(kKeyCryptoKey, 0, keyId, keyIdSize);
         memcpy(ctrCounter, data + 1, 8);
-        meta->setData(kKeyCryptoIV, 0, ctrCounter, 16);
-        meta->setData(kKeyPlainSizes, 0, plainSizes, sizeof(plainSizes));
-        meta->setData(kKeyEncryptedSizes, 0, encryptedSizes, sizeof(encryptedSizes));
+        meta.setData(kKeyCryptoIV, 0, ctrCounter, 16);
+        meta.setData(kKeyPlainSizes, 0, plainSizes, sizeof(plainSizes));
+        meta.setData(kKeyEncryptedSizes, 0, encryptedSizes, sizeof(encryptedSizes));
         mbuf->set_range(9, mbuf->range_length() - 9);
     } else {
         /*
@@ -634,8 +635,8 @@
          */
         int32_t plainSizes[] = { static_cast<int32_t>(mbuf->range_length() - 1) };
         int32_t encryptedSizes[] = { 0 };
-        meta->setData(kKeyPlainSizes, 0, plainSizes, sizeof(plainSizes));
-        meta->setData(kKeyEncryptedSizes, 0, encryptedSizes, sizeof(encryptedSizes));
+        meta.setData(kKeyPlainSizes, 0, plainSizes, sizeof(plainSizes));
+        meta.setData(kKeyEncryptedSizes, 0, encryptedSizes, sizeof(encryptedSizes));
         mbuf->set_range(1, mbuf->range_length() - 1);
     }
 
@@ -668,8 +669,8 @@
             memcpy(data, trackInfo->mHeader, trackInfo->mHeaderLen);
         }
 
-        mbuf->meta_data()->setInt64(kKeyTime, timeUs);
-        mbuf->meta_data()->setInt32(kKeyIsSyncFrame, block->IsKey());
+        mbuf->meta_data().setInt64(kKeyTime, timeUs);
+        mbuf->meta_data().setInt32(kKeyIsSyncFrame, block->IsKey());
 
         status_t err = frame.Read(mExtractor->mReader, data + trackInfo->mHeaderLen);
         if (err == OK
@@ -736,7 +737,7 @@
 
     if ((mType != AVC && mType != HEVC) || mNALSizeLen == 0) {
         if (targetSampleTimeUs >= 0ll) {
-            frame->meta_data()->setInt64(
+            frame->meta_data().setInt64(
                     kKeyTargetTime, targetSampleTimeUs);
         }
 
@@ -824,12 +825,12 @@
             }
 
             int64_t timeUs;
-            CHECK(frame->meta_data()->findInt64(kKeyTime, &timeUs));
+            CHECK(frame->meta_data().findInt64(kKeyTime, &timeUs));
             int32_t isSync;
-            CHECK(frame->meta_data()->findInt32(kKeyIsSyncFrame, &isSync));
+            CHECK(frame->meta_data().findInt32(kKeyIsSyncFrame, &isSync));
 
-            buffer->meta_data()->setInt64(kKeyTime, timeUs);
-            buffer->meta_data()->setInt32(kKeyIsSyncFrame, isSync);
+            buffer->meta_data().setInt64(kKeyTime, timeUs);
+            buffer->meta_data().setInt32(kKeyIsSyncFrame, isSync);
 
             dstPtr = (uint8_t *)buffer->data();
         }
@@ -841,7 +842,7 @@
     }
 
     if (targetSampleTimeUs >= 0ll) {
-        buffer->meta_data()->setInt64(
+        buffer->meta_data().setInt64(
                 kKeyTargetTime, targetSampleTimeUs);
     }
 
@@ -927,7 +928,7 @@
     return mTracks.size();
 }
 
-MediaSourceBase *MatroskaExtractor::getTrack(size_t index) {
+MediaTrack *MatroskaExtractor::getTrack(size_t index) {
     if (index >= mTracks.size()) {
         return NULL;
     }
@@ -935,10 +936,11 @@
     return new MatroskaSource(this, index);
 }
 
-sp<MetaData> MatroskaExtractor::getTrackMetaData(
+status_t MatroskaExtractor::getTrackMetaData(
+        MetaDataBase &meta,
         size_t index, uint32_t flags) {
     if (index >= mTracks.size()) {
-        return NULL;
+        return UNKNOWN_ERROR;
     }
 
     if ((flags & kIncludeExtensiveMetaData) && !mExtractedThumbnails
@@ -947,7 +949,8 @@
         mExtractedThumbnails = true;
     }
 
-    return mTracks.itemAt(index).mMeta;
+    meta = mTracks.itemAt(index).mMeta;
+    return OK;
 }
 
 bool MatroskaExtractor::isLiveStreaming() const {
@@ -982,7 +985,7 @@
 }
 
 static void addESDSFromCodecPrivate(
-        const sp<MetaData> &meta,
+        MetaDataBase &meta,
         bool isAudio, const void *priv, size_t privSize) {
 
     int privSizeBytesRequired = bytesForSize(privSize);
@@ -1010,14 +1013,14 @@
     storeSize(esds, idx, privSize);
     memcpy(esds + idx, priv, privSize);
 
-    meta->setData(kKeyESDS, 0, esds, esdsSize);
+    meta.setData(kKeyESDS, 0, esds, esdsSize);
 
     delete[] esds;
     esds = NULL;
 }
 
 status_t addVorbisCodecInfo(
-        const sp<MetaData> &meta,
+        MetaDataBase &meta,
         const void *_codecPrivate, size_t codecPrivateSize) {
     // hexdump(_codecPrivate, codecPrivateSize);
 
@@ -1075,7 +1078,7 @@
     if (codecPrivate[offset] != 0x01) {
         return ERROR_MALFORMED;
     }
-    meta->setData(kKeyVorbisInfo, 0, &codecPrivate[offset], len1);
+    meta.setData(kKeyVorbisInfo, 0, &codecPrivate[offset], len1);
 
     offset += len1;
     if (codecPrivate[offset] != 0x03) {
@@ -1087,7 +1090,7 @@
         return ERROR_MALFORMED;
     }
 
-    meta->setData(
+    meta.setData(
             kKeyVorbisBooks, 0, &codecPrivate[offset],
             codecPrivateSize - offset);
 
@@ -1095,11 +1098,11 @@
 }
 
 static status_t addFlacMetadata(
-        const sp<MetaData> &meta,
+        MetaDataBase &meta,
         const void *codecPrivate, size_t codecPrivateSize) {
     // hexdump(codecPrivate, codecPrivateSize);
 
-    meta->setData(kKeyFlacMetadata, 0, codecPrivate, codecPrivateSize);
+    meta.setData(kKeyFlacMetadata, 0, codecPrivate, codecPrivateSize);
 
     int32_t maxInputSize = 64 << 10;
     sp<FLACDecoder> flacDecoder = FLACDecoder::Create();
@@ -1120,7 +1123,7 @@
                 * streamInfo.max_blocksize * streamInfo.channels;
         }
     }
-    meta->setInt32(kKeyMaxInputSize, maxInputSize);
+    meta.setInt32(kKeyMaxInputSize, maxInputSize);
 
     return OK;
 }
@@ -1143,14 +1146,12 @@
         return ERROR_MALFORMED;
     }
 
-    sp<MetaData> avcMeta = MakeAVCCodecSpecificData(abuf);
-    if (avcMeta == NULL) {
+    if (!MakeAVCCodecSpecificData(trackInfo->mMeta, abuf)) {
         return ERROR_MALFORMED;
     }
 
     // Override the synthesized nal length size, which is arbitrary
-    avcMeta->setInt32(kKeyNalLengthSize, 0);
-    trackInfo->mMeta = avcMeta;
+    trackInfo->mMeta.setInt32(kKeyNalLengthSize, 0);
     return OK;
 }
 
@@ -1172,7 +1173,7 @@
 }
 
 void MatroskaExtractor::getColorInformation(
-        const mkvparser::VideoTrack *vtrack, sp<MetaData> &meta) {
+        const mkvparser::VideoTrack *vtrack, MetaDataBase &meta) {
     const mkvparser::Colour *color = vtrack->GetColour();
     if (color == NULL) {
         return;
@@ -1206,10 +1207,10 @@
         ColorAspects aspects;
         ColorUtils::convertIsoColorAspectsToCodecAspects(
                 primaries, transfer, coeffs, fullRange, aspects);
-        meta->setInt32(kKeyColorPrimaries, aspects.mPrimaries);
-        meta->setInt32(kKeyTransferFunction, aspects.mTransfer);
-        meta->setInt32(kKeyColorMatrix, aspects.mMatrixCoeffs);
-        meta->setInt32(
+        meta.setInt32(kKeyColorPrimaries, aspects.mPrimaries);
+        meta.setInt32(kKeyTransferFunction, aspects.mTransfer);
+        meta.setInt32(kKeyColorMatrix, aspects.mMatrixCoeffs);
+        meta.setInt32(
                 kKeyColorRange, rangeSpecified ? aspects.mRange : ColorAspects::RangeUnspecified);
     }
 
@@ -1254,13 +1255,13 @@
         // Only advertise static info if at least one of the groups have been specified.
         if (memcmp(&info, &nullInfo, sizeof(info)) != 0) {
             info.mID = HDRStaticInfo::kType1;
-            meta->setData(kKeyHdrStaticInfo, 'hdrS', &info, sizeof(info));
+            meta.setData(kKeyHdrStaticInfo, 'hdrS', &info, sizeof(info));
         }
     }
 }
 
 status_t MatroskaExtractor::initTrackInfo(
-        const mkvparser::Track *track, const sp<MetaData> &meta, TrackInfo *trackInfo) {
+        const mkvparser::Track *track, MetaDataBase &meta, TrackInfo *trackInfo) {
     trackInfo->mTrackNum = track->GetNumber();
     trackInfo->mMeta = meta;
     trackInfo->mExtractor = this;
@@ -1273,7 +1274,7 @@
         for(size_t j = 0; j < encoding->GetEncryptionCount(); j++) {
             const mkvparser::ContentEncoding::ContentEncryption *encryption;
             encryption = encoding->GetEncryptionByIndex(j);
-            trackInfo->mMeta->setData(kKeyCryptoKey, 0, encryption->key_id, encryption->key_id_len);
+            trackInfo->mMeta.setData(kKeyCryptoKey, 0, encryption->key_id, encryption->key_id_len);
             trackInfo->mEncrypted = true;
             break;
         }
@@ -1322,7 +1323,7 @@
 
         enum { VIDEO_TRACK = 1, AUDIO_TRACK = 2 };
 
-        sp<MetaData> meta = new MetaData;
+        MetaDataBase meta;
 
         status_t err = OK;
 
@@ -1333,19 +1334,19 @@
                     static_cast<const mkvparser::VideoTrack *>(track);
 
                 if (!strcmp("V_MPEG4/ISO/AVC", codecID)) {
-                    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
-                    meta->setData(kKeyAVCC, 0, codecPrivate, codecPrivateSize);
+                    meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
+                    meta.setData(kKeyAVCC, 0, codecPrivate, codecPrivateSize);
                 } else if (!strcmp("V_MPEGH/ISO/HEVC", codecID)) {
-                    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_HEVC);
+                    meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_HEVC);
                     if (codecPrivateSize > 0) {
-                        meta->setData(kKeyHVCC, kTypeHVCC, codecPrivate, codecPrivateSize);
+                        meta.setData(kKeyHVCC, kTypeHVCC, codecPrivate, codecPrivateSize);
                     } else {
                         ALOGW("HEVC is detected, but does not have configuration.");
                         continue;
                     }
                 } else if (!strcmp("V_MPEG4/ISO/ASP", codecID)) {
                     if (codecPrivateSize > 0) {
-                        meta->setCString(
+                        meta.setCString(
                                 kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
                         addESDSFromCodecPrivate(
                                 meta, false, codecPrivate, codecPrivateSize);
@@ -1355,13 +1356,13 @@
                         continue;
                     }
                 } else if (!strcmp("V_VP8", codecID)) {
-                    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_VP8);
+                    meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_VP8);
                 } else if (!strcmp("V_VP9", codecID)) {
-                    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_VP9);
+                    meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_VP9);
                     if (codecPrivateSize > 0) {
                       // 'csd-0' for VP9 is the Blob of Codec Private data as
                       // specified in http://www.webmproject.org/vp9/profiles/.
-                      meta->setData(
+                        meta.setData(
                               kKeyVp9CodecPrivate, 0, codecPrivate,
                               codecPrivateSize);
                     }
@@ -1380,8 +1381,8 @@
                     ALOGW("track height exceeds int32_t, %lld", height);
                     continue;
                 }
-                meta->setInt32(kKeyWidth, (int32_t)width);
-                meta->setInt32(kKeyHeight, (int32_t)height);
+                meta.setInt32(kKeyWidth, (int32_t)width);
+                meta.setInt32(kKeyHeight, (int32_t)height);
 
                 // setting display width/height is optional
                 const long long displayUnit = vtrack->GetDisplayUnit();
@@ -1391,8 +1392,8 @@
                         && displayHeight > 0 && displayHeight <= INT32_MAX) {
                     switch (displayUnit) {
                     case 0: // pixels
-                        meta->setInt32(kKeyDisplayWidth, (int32_t)displayWidth);
-                        meta->setInt32(kKeyDisplayHeight, (int32_t)displayHeight);
+                        meta.setInt32(kKeyDisplayWidth, (int32_t)displayWidth);
+                        meta.setInt32(kKeyDisplayHeight, (int32_t)displayHeight);
                         break;
                     case 1: // centimeters
                     case 2: // inches
@@ -1406,8 +1407,8 @@
                         const long long computedHeight =
                                 std::max(height, width * displayHeight / displayWidth);
                         if (computedWidth <= INT32_MAX && computedHeight <= INT32_MAX) {
-                            meta->setInt32(kKeyDisplayWidth, (int32_t)computedWidth);
-                            meta->setInt32(kKeyDisplayHeight, (int32_t)computedHeight);
+                            meta.setInt32(kKeyDisplayWidth, (int32_t)computedWidth);
+                            meta.setInt32(kKeyDisplayHeight, (int32_t)computedHeight);
                         }
                         break;
                     }
@@ -1427,34 +1428,34 @@
                     static_cast<const mkvparser::AudioTrack *>(track);
 
                 if (!strcmp("A_AAC", codecID)) {
-                    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
+                    meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
                     CHECK(codecPrivateSize >= 2);
 
                     addESDSFromCodecPrivate(
                             meta, true, codecPrivate, codecPrivateSize);
                 } else if (!strcmp("A_VORBIS", codecID)) {
-                    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_VORBIS);
+                    meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_VORBIS);
 
                     err = addVorbisCodecInfo(
                             meta, codecPrivate, codecPrivateSize);
                 } else if (!strcmp("A_OPUS", codecID)) {
-                    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_OPUS);
-                    meta->setData(kKeyOpusHeader, 0, codecPrivate, codecPrivateSize);
-                    meta->setInt64(kKeyOpusCodecDelay, track->GetCodecDelay());
-                    meta->setInt64(kKeyOpusSeekPreRoll, track->GetSeekPreRoll());
+                    meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_OPUS);
+                    meta.setData(kKeyOpusHeader, 0, codecPrivate, codecPrivateSize);
+                    meta.setInt64(kKeyOpusCodecDelay, track->GetCodecDelay());
+                    meta.setInt64(kKeyOpusSeekPreRoll, track->GetSeekPreRoll());
                     mSeekPreRollNs = track->GetSeekPreRoll();
                 } else if (!strcmp("A_MPEG/L3", codecID)) {
-                    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
+                    meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
                 } else if (!strcmp("A_FLAC", codecID)) {
-                    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_FLAC);
+                    meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_FLAC);
                     err = addFlacMetadata(meta, codecPrivate, codecPrivateSize);
                 } else {
                     ALOGW("%s is not supported.", codecID);
                     continue;
                 }
 
-                meta->setInt32(kKeySampleRate, atrack->GetSamplingRate());
-                meta->setInt32(kKeyChannelCount, atrack->GetChannels());
+                meta.setInt32(kKeySampleRate, atrack->GetSamplingRate());
+                meta.setInt32(kKeyChannelCount, atrack->GetChannels());
                 break;
             }
 
@@ -1467,7 +1468,7 @@
            char lang[4];
            strncpy(lang, language, 3);
            lang[3] = '\0';
-           meta->setCString(kKeyMediaLanguage, lang);
+           meta.setCString(kKeyMediaLanguage, lang);
         }
 
         if (err != OK) {
@@ -1476,7 +1477,7 @@
         }
 
         long long durationNs = mSegment->GetDuration();
-        meta->setInt64(kKeyDuration, (durationNs + 500) / 1000);
+        meta.setInt64(kKeyDuration, (durationNs + 500) / 1000);
 
         mTracks.push();
         size_t n = mTracks.size() - 1;
@@ -1498,7 +1499,7 @@
         TrackInfo *info = &mTracks.editItemAt(i);
 
         const char *mime;
-        CHECK(info->mMeta->findCString(kKeyMIMEType, &mime));
+        CHECK(info->mMeta.findCString(kKeyMIMEType, &mime));
 
         if (strncasecmp(mime, "video/", 6)) {
             continue;
@@ -1524,18 +1525,16 @@
             }
             iter.advance();
         }
-        info->mMeta->setInt64(kKeyThumbnailTime, thumbnailTimeUs);
+        info->mMeta.setInt64(kKeyThumbnailTime, thumbnailTimeUs);
     }
 }
 
-sp<MetaData> MatroskaExtractor::getMetaData() {
-    sp<MetaData> meta = new MetaData;
-
-    meta->setCString(
+status_t MatroskaExtractor::getMetaData(MetaDataBase &meta) {
+    meta.setCString(
             kKeyMIMEType,
             mIsWebm ? "video/webm" : MEDIA_MIMETYPE_CONTAINER_MATROSKA);
 
-    return meta;
+    return OK;
 }
 
 uint32_t MatroskaExtractor::flags() const {
diff --git a/media/extractors/mkv/MatroskaExtractor.h b/media/extractors/mkv/MatroskaExtractor.h
index 095452b..3568ea1 100644
--- a/media/extractors/mkv/MatroskaExtractor.h
+++ b/media/extractors/mkv/MatroskaExtractor.h
@@ -21,6 +21,7 @@
 #include "mkvparser/mkvparser.h"
 
 #include <media/MediaExtractor.h>
+#include <media/stagefright/MetaDataBase.h>
 #include <utils/Vector.h>
 #include <utils/threads.h>
 
@@ -38,12 +39,11 @@
 
     virtual size_t countTracks();
 
-    virtual MediaSourceBase *getTrack(size_t index);
+    virtual MediaTrack *getTrack(size_t index);
 
-    virtual sp<MetaData> getTrackMetaData(
-            size_t index, uint32_t flags);
+    virtual status_t getTrackMetaData(MetaDataBase& meta, size_t index, uint32_t flags);
 
-    virtual sp<MetaData> getMetaData();
+    virtual status_t getMetaData(MetaDataBase& meta);
 
     virtual uint32_t flags() const;
 
@@ -59,7 +59,7 @@
     struct TrackInfo {
         unsigned long mTrackNum;
         bool mEncrypted;
-        sp<MetaData> mMeta;
+        MetaDataBase mMeta;
         const MatroskaExtractor *mExtractor;
         Vector<const mkvparser::CuePoint*> mCuePoints;
 
@@ -85,20 +85,21 @@
     int64_t mSeekPreRollNs;
 
     status_t synthesizeAVCC(TrackInfo *trackInfo, size_t index);
-    status_t initTrackInfo(const mkvparser::Track *track, const sp<MetaData> &meta, TrackInfo *trackInfo);
+    status_t initTrackInfo(
+            const mkvparser::Track *track,
+            MetaDataBase &meta,
+            TrackInfo *trackInfo);
     void addTracks();
     void findThumbnails();
-    void getColorInformation(const mkvparser::VideoTrack *vtrack, sp<MetaData> &meta);
+    void getColorInformation(
+            const mkvparser::VideoTrack *vtrack,
+            MetaDataBase &meta);
     bool isLiveStreaming() const;
 
     MatroskaExtractor(const MatroskaExtractor &);
     MatroskaExtractor &operator=(const MatroskaExtractor &);
 };
 
-bool SniffMatroska(
-        DataSourceBase *source, String8 *mimeType, float *confidence,
-        sp<AMessage> *);
-
 }  // namespace android
 
 #endif  // MATROSKA_EXTRACTOR_H_
diff --git a/media/extractors/mp3/MP3Extractor.cpp b/media/extractors/mp3/MP3Extractor.cpp
index 90ee653..33cff96 100644
--- a/media/extractors/mp3/MP3Extractor.cpp
+++ b/media/extractors/mp3/MP3Extractor.cpp
@@ -25,7 +25,7 @@
 #include "XINGSeeker.h"
 
 #include <media/DataSourceBase.h>
-#include <media/MediaSourceBase.h>
+#include <media/MediaTrack.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/avc_utils.h>
@@ -209,17 +209,17 @@
     return valid;
 }
 
-class MP3Source : public MediaSourceBase {
+class MP3Source : public MediaTrack {
 public:
     MP3Source(
-            const sp<MetaData> &meta, DataSourceBase *source,
+            MetaDataBase &meta, DataSourceBase *source,
             off64_t first_frame_pos, uint32_t fixed_header,
-            const sp<MP3Seeker> &seeker);
+            MP3Seeker *seeker);
 
-    virtual status_t start(MetaData *params = NULL);
+    virtual status_t start(MetaDataBase *params = NULL);
     virtual status_t stop();
 
-    virtual sp<MetaData> getFormat();
+    virtual status_t getFormat(MetaDataBase &meta);
 
     virtual status_t read(
             MediaBufferBase **buffer, const ReadOptions *options = NULL);
@@ -229,14 +229,14 @@
 
 private:
     static const size_t kMaxFrameSize;
-    sp<MetaData> mMeta;
+    MetaDataBase &mMeta;
     DataSourceBase *mDataSource;
     off64_t mFirstFramePos;
     uint32_t mFixedHeader;
     off64_t mCurrentPos;
     int64_t mCurrentTimeUs;
     bool mStarted;
-    sp<MP3Seeker> mSeeker;
+    MP3Seeker *mSeeker;
     MediaBufferGroup *mGroup;
 
     int64_t mBasisTimeUs;
@@ -246,31 +246,31 @@
     MP3Source &operator=(const MP3Source &);
 };
 
+struct Mp3Meta {
+    off64_t pos;
+    off64_t post_id3_pos;
+    uint32_t header;
+};
+
 MP3Extractor::MP3Extractor(
-        DataSourceBase *source, const sp<AMessage> &meta)
+        DataSourceBase *source, Mp3Meta *meta)
     : mInitCheck(NO_INIT),
       mDataSource(source),
       mFirstFramePos(-1),
-      mFixedHeader(0) {
+      mFixedHeader(0),
+      mSeeker(NULL) {
 
     off64_t pos = 0;
     off64_t post_id3_pos;
     uint32_t header;
     bool success;
 
-    int64_t meta_offset;
-    uint32_t meta_header;
-    int64_t meta_post_id3_offset;
-    if (meta != NULL
-            && meta->findInt64("offset", &meta_offset)
-            && meta->findInt32("header", (int32_t *)&meta_header)
-            && meta->findInt64("post-id3-offset", &meta_post_id3_offset)) {
+    if (meta != NULL) {
         // The sniffer has already done all the hard work for us, simply
         // accept its judgement.
-        pos = (off64_t)meta_offset;
-        header = meta_header;
-        post_id3_pos = (off64_t)meta_post_id3_offset;
-
+        pos = meta->pos;
+        header = meta->header;
+        post_id3_pos = meta->post_id3_pos;
         success = true;
     } else {
         success = Resync(mDataSource, 0, &pos, &post_id3_pos, &header);
@@ -283,8 +283,7 @@
 
     mFirstFramePos = pos;
     mFixedHeader = header;
-    mMeta = new MetaData;
-    sp<XINGSeeker> seeker = XINGSeeker::CreateFromSource(mDataSource, mFirstFramePos);
+    XINGSeeker *seeker = XINGSeeker::CreateFromSource(mDataSource, mFirstFramePos);
 
     if (seeker == NULL) {
         mSeeker = VBRISeeker::CreateFromSource(mDataSource, post_id3_pos);
@@ -293,8 +292,8 @@
         int encd = seeker->getEncoderDelay();
         int encp = seeker->getEncoderPadding();
         if (encd != 0 || encp != 0) {
-            mMeta->setInt32(kKeyEncoderDelay, encd);
-            mMeta->setInt32(kKeyEncoderPadding, encp);
+            mMeta.setInt32(kKeyEncoderDelay, encd);
+            mMeta.setInt32(kKeyEncoderPadding, encp);
         }
     }
 
@@ -330,21 +329,21 @@
 
     switch (layer) {
         case 1:
-            mMeta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I);
+            mMeta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I);
             break;
         case 2:
-            mMeta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II);
+            mMeta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II);
             break;
         case 3:
-            mMeta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
+            mMeta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG);
             break;
         default:
             TRESPASS();
     }
 
-    mMeta->setInt32(kKeySampleRate, sample_rate);
-    mMeta->setInt32(kKeyBitRate, bitrate * 1000);
-    mMeta->setInt32(kKeyChannelCount, num_channels);
+    mMeta.setInt32(kKeySampleRate, sample_rate);
+    mMeta.setInt32(kKeyBitRate, bitrate * 1000);
+    mMeta.setInt32(kKeyChannelCount, num_channels);
 
     int64_t durationUs;
 
@@ -364,7 +363,7 @@
     }
 
     if (durationUs >= 0) {
-        mMeta->setInt64(kKeyDuration, durationUs);
+        mMeta.setInt64(kKeyDuration, durationUs);
     }
 
     mInitCheck = OK;
@@ -391,8 +390,8 @@
 
                 int32_t delay, padding;
                 if (sscanf(value, " %*x %x %x %*x", &delay, &padding) == 2) {
-                    mMeta->setInt32(kKeyEncoderDelay, delay);
-                    mMeta->setInt32(kKeyEncoderPadding, padding);
+                    mMeta.setInt32(kKeyEncoderDelay, delay);
+                    mMeta.setInt32(kKeyEncoderPadding, padding);
                 }
                 break;
             }
@@ -403,11 +402,15 @@
     }
 }
 
+MP3Extractor::~MP3Extractor() {
+    delete mSeeker;
+}
+
 size_t MP3Extractor::countTracks() {
     return mInitCheck != OK ? 0 : 1;
 }
 
-MediaSourceBase *MP3Extractor::getTrack(size_t index) {
+MediaTrack *MP3Extractor::getTrack(size_t index) {
     if (mInitCheck != OK || index != 0) {
         return NULL;
     }
@@ -417,13 +420,14 @@
             mSeeker);
 }
 
-sp<MetaData> MP3Extractor::getTrackMetaData(
+status_t MP3Extractor::getTrackMetaData(
+        MetaDataBase &meta,
         size_t index, uint32_t /* flags */) {
     if (mInitCheck != OK || index != 0) {
-        return NULL;
+        return UNKNOWN_ERROR;
     }
-
-    return mMeta;
+    meta = mMeta;
+    return OK;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -436,9 +440,9 @@
 // Set our max frame size to the nearest power of 2 above this size (aka, 4kB)
 const size_t MP3Source::kMaxFrameSize = (1 << 12); /* 4096 bytes */
 MP3Source::MP3Source(
-        const sp<MetaData> &meta, DataSourceBase *source,
+        MetaDataBase &meta, DataSourceBase *source,
         off64_t first_frame_pos, uint32_t fixed_header,
-        const sp<MP3Seeker> &seeker)
+        MP3Seeker *seeker)
     : mMeta(meta),
       mDataSource(source),
       mFirstFramePos(first_frame_pos),
@@ -458,7 +462,7 @@
     }
 }
 
-status_t MP3Source::start(MetaData *) {
+status_t MP3Source::start(MetaDataBase *) {
     CHECK(!mStarted);
 
     mGroup = new MediaBufferGroup;
@@ -487,8 +491,9 @@
     return OK;
 }
 
-sp<MetaData> MP3Source::getFormat() {
-    return mMeta;
+status_t MP3Source::getFormat(MetaDataBase &meta) {
+    meta = mMeta;
+    return OK;
 }
 
 status_t MP3Source::read(
@@ -504,7 +509,7 @@
         if (mSeeker == NULL
                 || !mSeeker->getOffsetForTime(&actualSeekTimeUs, &mCurrentPos)) {
             int32_t bitrate;
-            if (!mMeta->findInt32(kKeyBitRate, &bitrate)) {
+            if (!mMeta.findInt32(kKeyBitRate, &bitrate)) {
                 // bitrate is in bits/sec.
                 ALOGI("no bitrate");
 
@@ -587,8 +592,8 @@
 
     buffer->set_range(0, frame_size);
 
-    buffer->meta_data()->setInt64(kKeyTime, mCurrentTimeUs);
-    buffer->meta_data()->setInt32(kKeyIsSyncFrame, 1);
+    buffer->meta_data().setInt64(kKeyTime, mCurrentTimeUs);
+    buffer->meta_data().setInt32(kKeyIsSyncFrame, 1);
 
     mCurrentPos += frame_size;
 
@@ -600,19 +605,17 @@
     return OK;
 }
 
-sp<MetaData> MP3Extractor::getMetaData() {
-    sp<MetaData> meta = new MetaData;
-
+status_t MP3Extractor::getMetaData(MetaDataBase &meta) {
+    meta.clear();
     if (mInitCheck != OK) {
-        return meta;
+        return UNKNOWN_ERROR;
     }
-
-    meta->setCString(kKeyMIMEType, "audio/mpeg");
+    meta.setCString(kKeyMIMEType, "audio/mpeg");
 
     ID3 id3(mDataSource);
 
     if (!id3.isValid()) {
-        return meta;
+        return OK;
     }
 
     struct Map {
@@ -651,7 +654,7 @@
         it->getString(&s);
         delete it;
 
-        meta->setCString(kMap[i].key, s);
+        meta.setCString(kMap[i].key, s);
     }
 
     size_t dataSize;
@@ -659,26 +662,20 @@
     const void *data = id3.getAlbumArt(&dataSize, &mime);
 
     if (data) {
-        meta->setData(kKeyAlbumArt, MetaData::TYPE_NONE, data, dataSize);
-        meta->setCString(kKeyAlbumArtMIME, mime.string());
+        meta.setData(kKeyAlbumArt, MetaData::TYPE_NONE, data, dataSize);
+        meta.setCString(kKeyAlbumArtMIME, mime.string());
     }
 
-    return meta;
+    return OK;
 }
 
 static MediaExtractor* CreateExtractor(
         DataSourceBase *source,
         void *meta) {
-    sp<AMessage> metaData = static_cast<AMessage *>(meta);
+    Mp3Meta *metaData = static_cast<Mp3Meta *>(meta);
     return new MP3Extractor(source, metaData);
 }
 
-static void FreeMeta(void *meta) {
-    if (meta != nullptr) {
-        static_cast<AMessage *>(meta)->decStrong(nullptr);
-    }
-}
-
 static MediaExtractor::CreatorFunc Sniff(
         DataSourceBase *source, float *confidence, void **meta,
         MediaExtractor::FreeMetaFunc *freeMeta) {
@@ -698,14 +695,12 @@
         return NULL;
     }
 
-    AMessage *msg = new AMessage;
-    msg->setInt64("offset", pos);
-    msg->setInt32("header", header);
-    msg->setInt64("post-id3-offset", post_id3_pos);
-    *meta = msg;
-    *freeMeta = &FreeMeta;
-    // ref count will be decreased in FreeMeta.
-    msg->incStrong(nullptr);
+    Mp3Meta *mp3Meta = new Mp3Meta;
+    mp3Meta->pos = pos;
+    mp3Meta->header = header;
+    mp3Meta->post_id3_pos = post_id3_pos;
+    *meta = mp3Meta;
+    *freeMeta = ::free;
 
     *confidence = 0.2f;
 
diff --git a/media/extractors/mp3/MP3Extractor.h b/media/extractors/mp3/MP3Extractor.h
index 6257112..485b0ca 100644
--- a/media/extractors/mp3/MP3Extractor.h
+++ b/media/extractors/mp3/MP3Extractor.h
@@ -20,6 +20,7 @@
 
 #include <utils/Errors.h>
 #include <media/MediaExtractor.h>
+#include <media/stagefright/MetaDataBase.h>
 
 namespace android {
 
@@ -27,16 +28,18 @@
 class DataSourceBase;
 struct MP3Seeker;
 class String8;
+struct Mp3Meta;
 
 class MP3Extractor : public MediaExtractor {
 public:
-    MP3Extractor(DataSourceBase *source, const sp<AMessage> &meta);
+    MP3Extractor(DataSourceBase *source, Mp3Meta *meta);
+    ~MP3Extractor();
 
     virtual size_t countTracks();
-    virtual MediaSourceBase *getTrack(size_t index);
-    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
+    virtual MediaTrack *getTrack(size_t index);
+    virtual status_t getTrackMetaData(MetaDataBase& meta, size_t index, uint32_t flags);
 
-    virtual sp<MetaData> getMetaData();
+    virtual status_t getMetaData(MetaDataBase& meta);
     virtual const char * name() { return "MP3Extractor"; }
 
 private:
@@ -44,18 +47,14 @@
 
     DataSourceBase *mDataSource;
     off64_t mFirstFramePos;
-    sp<MetaData> mMeta;
+    MetaDataBase mMeta;
     uint32_t mFixedHeader;
-    sp<MP3Seeker> mSeeker;
+    MP3Seeker *mSeeker;
 
     MP3Extractor(const MP3Extractor &);
     MP3Extractor &operator=(const MP3Extractor &);
 };
 
-bool SniffMP3(
-        DataSourceBase *source, String8 *mimeType, float *confidence,
-        sp<AMessage> *meta);
-
 }  // namespace android
 
 #endif  // MP3_EXTRACTOR_H_
diff --git a/media/extractors/mp3/MP3Seeker.h b/media/extractors/mp3/MP3Seeker.h
index 599542e..0e3af25 100644
--- a/media/extractors/mp3/MP3Seeker.h
+++ b/media/extractors/mp3/MP3Seeker.h
@@ -23,7 +23,7 @@
 
 namespace android {
 
-struct MP3Seeker : public RefBase {
+struct MP3Seeker {
     MP3Seeker() {}
 
     virtual bool getDuration(int64_t *durationUs) = 0;
@@ -33,7 +33,6 @@
     // the actual time that seekpoint represents.
     virtual bool getOffsetForTime(int64_t *timeUs, off64_t *pos) = 0;
 
-protected:
     virtual ~MP3Seeker() {}
 
 private:
diff --git a/media/extractors/mp3/VBRISeeker.cpp b/media/extractors/mp3/VBRISeeker.cpp
index 51c5d1f..523f14c 100644
--- a/media/extractors/mp3/VBRISeeker.cpp
+++ b/media/extractors/mp3/VBRISeeker.cpp
@@ -36,7 +36,7 @@
 }
 
 // static
-sp<VBRISeeker> VBRISeeker::CreateFromSource(
+VBRISeeker *VBRISeeker::CreateFromSource(
         DataSourceBase *source, off64_t post_id3_pos) {
     off64_t pos = post_id3_pos;
 
@@ -87,7 +87,7 @@
         return NULL;
     }
 
-    sp<VBRISeeker> seeker = new (std::nothrow) VBRISeeker;
+    VBRISeeker *seeker = new (std::nothrow) VBRISeeker;
     if (seeker == NULL) {
         ALOGW("Couldn't allocate VBRISeeker");
         return NULL;
@@ -97,6 +97,7 @@
     uint8_t *buffer = new (std::nothrow) uint8_t[totalEntrySize];
     if (!buffer) {
         ALOGW("Couldn't allocate %zu bytes", totalEntrySize);
+        delete seeker;
         return NULL;
     }
 
@@ -104,7 +105,7 @@
     if (n < (ssize_t)totalEntrySize) {
         delete[] buffer;
         buffer = NULL;
-
+        delete seeker;
         return NULL;
     }
 
diff --git a/media/extractors/mp3/VBRISeeker.h b/media/extractors/mp3/VBRISeeker.h
index e46af36..9213f6e 100644
--- a/media/extractors/mp3/VBRISeeker.h
+++ b/media/extractors/mp3/VBRISeeker.h
@@ -27,7 +27,7 @@
 class DataSourceBase;
 
 struct VBRISeeker : public MP3Seeker {
-    static sp<VBRISeeker> CreateFromSource(
+    static VBRISeeker *CreateFromSource(
             DataSourceBase *source, off64_t post_id3_pos);
 
     virtual bool getDuration(int64_t *durationUs);
diff --git a/media/extractors/mp3/XINGSeeker.cpp b/media/extractors/mp3/XINGSeeker.cpp
index adfa8d2..95ca556 100644
--- a/media/extractors/mp3/XINGSeeker.cpp
+++ b/media/extractors/mp3/XINGSeeker.cpp
@@ -76,11 +76,8 @@
 }
 
 // static
-sp<XINGSeeker> XINGSeeker::CreateFromSource(
+XINGSeeker *XINGSeeker::CreateFromSource(
         DataSourceBase *source, off64_t first_frame_pos) {
-    sp<XINGSeeker> seeker = new XINGSeeker;
-
-    seeker->mFirstFramePos = first_frame_pos;
 
     uint8_t buffer[4];
     int offset = first_frame_pos;
@@ -98,8 +95,6 @@
                                NULL, &samples_per_frame)) {
         return NULL;
     }
-    seeker->mFirstFramePos += xingframesize;
-
     uint8_t version = (buffer[1] >> 3) & 3;
 
     // determine offset of XING header
@@ -132,9 +127,13 @@
     offset += 4;
     uint32_t flags = U32_AT(buffer);
 
+    XINGSeeker *seeker = new XINGSeeker;
+    seeker->mFirstFramePos = first_frame_pos + xingframesize;
+
     if (flags & 0x0001) {  // Frames field is present
         if (source->readAt(offset, buffer, 4) < 4) {
-             return NULL;
+            delete seeker;
+            return NULL;
         }
         int32_t frames = U32_AT(buffer);
         // only update mDurationUs if the calculated duration is valid (non zero)
@@ -148,6 +147,7 @@
     }
     if (flags & 0x0002) {  // Bytes field is present
         if (source->readAt(offset, buffer, 4) < 4) {
+            delete seeker;
             return NULL;
         }
         seeker->mSizeBytes = U32_AT(buffer);
@@ -155,6 +155,7 @@
     }
     if (flags & 0x0004) {  // TOC field is present
         if (source->readAt(offset + 1, seeker->mTOC, 99) < 99) {
+            delete seeker;
             return NULL;
         }
         seeker->mTOCValid = true;
@@ -164,6 +165,7 @@
 #if 0
     if (flags & 0x0008) {  // Quality indicator field is present
         if (source->readAt(offset, buffer, 4) < 4) {
+            delete seeker;
             return NULL;
         }
         // do something with the quality indicator
@@ -171,6 +173,7 @@
     }
 
     if (source->readAt(xingbase + 0xaf - 0x24, &buffer, 1) < 1) { // encoding flags
+        delete seeker;
         return false;
     }
 
diff --git a/media/extractors/mp3/XINGSeeker.h b/media/extractors/mp3/XINGSeeker.h
index db847bc..5867eae 100644
--- a/media/extractors/mp3/XINGSeeker.h
+++ b/media/extractors/mp3/XINGSeeker.h
@@ -25,7 +25,7 @@
 class DataSourceBase;
 
 struct XINGSeeker : public MP3Seeker {
-    static sp<XINGSeeker> CreateFromSource(
+    static XINGSeeker *CreateFromSource(
             DataSourceBase *source, off64_t first_frame_pos);
 
     virtual bool getDuration(int64_t *durationUs);
diff --git a/media/extractors/mp4/MPEG4Extractor.cpp b/media/extractors/mp4/MPEG4Extractor.cpp
index 40c84a5..78d2ac6 100644
--- a/media/extractors/mp4/MPEG4Extractor.cpp
+++ b/media/extractors/mp4/MPEG4Extractor.cpp
@@ -31,7 +31,7 @@
 #include "ItemTable.h"
 #include "include/ESDS.h"
 
-#include <media/MediaSourceBase.h>
+#include <media/MediaTrack.h>
 #include <media/stagefright/foundation/ABitReader.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
@@ -65,10 +65,10 @@
     kMaxAtomSize = 64 * 1024 * 1024,
 };
 
-class MPEG4Source : public MediaSourceBase {
+class MPEG4Source : public MediaTrack {
 public:
     // Caller retains ownership of both "dataSource" and "sampleTable".
-    MPEG4Source(const sp<MetaData> &format,
+    MPEG4Source(MetaDataBase &format,
                 DataSourceBase *dataSource,
                 int32_t timeScale,
                 const sp<SampleTable> &sampleTable,
@@ -78,10 +78,10 @@
                 const sp<ItemTable> &itemTable);
     virtual status_t init();
 
-    virtual status_t start(MetaData *params = NULL);
+    virtual status_t start(MetaDataBase *params = NULL);
     virtual status_t stop();
 
-    virtual sp<MetaData> getFormat();
+    virtual status_t getFormat(MetaDataBase &);
 
     virtual status_t read(MediaBufferBase **buffer, const ReadOptions *options = NULL);
     virtual bool supportNonblockingRead() { return true; }
@@ -92,7 +92,7 @@
 private:
     Mutex mLock;
 
-    sp<MetaData> mFormat;
+    MetaDataBase &mFormat;
     DataSourceBase *mDataSource;
     int32_t mTimescale;
     sp<SampleTable> mSampleTable;
@@ -353,8 +353,7 @@
       mHasMoovBox(false),
       mPreferHeif(mime != NULL && !strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_HEIF)),
       mFirstTrack(NULL),
-      mLastTrack(NULL),
-      mFileMetaData(new MetaData) {
+      mLastTrack(NULL) {
     ALOGV("mime=%s, mPreferHeif=%d", mime, mPreferHeif);
 }
 
@@ -382,13 +381,13 @@
                     (CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK) : 0);
 }
 
-sp<MetaData> MPEG4Extractor::getMetaData() {
+status_t MPEG4Extractor::getMetaData(MetaDataBase &meta) {
     status_t err;
     if ((err = readMetaData()) != OK) {
-        return new MetaData;
+        return UNKNOWN_ERROR;
     }
-
-    return mFileMetaData;
+    meta = mFileMetaData;
+    return OK;
 }
 
 size_t MPEG4Extractor::countTracks() {
@@ -409,17 +408,18 @@
     return n;
 }
 
-sp<MetaData> MPEG4Extractor::getTrackMetaData(
+status_t MPEG4Extractor::getTrackMetaData(
+        MetaDataBase &meta,
         size_t index, uint32_t flags) {
     status_t err;
     if ((err = readMetaData()) != OK) {
-        return NULL;
+        return UNKNOWN_ERROR;
     }
 
     Track *track = mFirstTrack;
     while (index > 0) {
         if (track == NULL) {
-            return NULL;
+            return UNKNOWN_ERROR;
         }
 
         track = track->next;
@@ -427,15 +427,15 @@
     }
 
     if (track == NULL) {
-        return NULL;
+        return UNKNOWN_ERROR;
     }
 
     [=] {
         int64_t duration;
         int32_t samplerate;
         if (track->has_elst && mHeaderTimescale != 0 &&
-                track->meta->findInt64(kKeyDuration, &duration) &&
-                track->meta->findInt32(kKeySampleRate, &samplerate)) {
+                track->meta.findInt64(kKeyDuration, &duration) &&
+                track->meta.findInt32(kKeySampleRate, &samplerate)) {
 
             track->has_elst = false;
 
@@ -462,7 +462,7 @@
                 return;
             }
             ALOGV("delay = %" PRId64, delay);
-            track->meta->setInt32(kKeyEncoderDelay, delay);
+            track->meta.setInt32(kKeyEncoderDelay, delay);
 
             int64_t scaled_duration;
             // scaled_duration = duration * mHeaderTimescale;
@@ -502,7 +502,7 @@
                 return;
             }
             ALOGV("paddingsamples = %" PRId64, paddingsamples);
-            track->meta->setInt32(kKeyEncoderPadding, paddingsamples);
+            track->meta.setInt32(kKeyEncoderPadding, paddingsamples);
         }
     }();
 
@@ -511,7 +511,7 @@
         track->includes_expensive_metadata = true;
 
         const char *mime;
-        CHECK(track->meta->findCString(kKeyMIMEType, &mime));
+        CHECK(track->meta.findCString(kKeyMIMEType, &mime));
         if (!strncasecmp("video/", mime, 6)) {
             // MPEG2 tracks do not provide CSD, so read the stream header
             if (!strcmp(mime, MEDIA_MIMETYPE_VIDEO_MPEG2)) {
@@ -524,16 +524,16 @@
                     }
                     uint8_t header[kMaxTrackHeaderSize];
                     if (mDataSource->readAt(offset, &header, size) == (ssize_t)size) {
-                        track->meta->setData(kKeyStreamHeader, 'mdat', header, size);
+                        track->meta.setData(kKeyStreamHeader, 'mdat', header, size);
                     }
                 }
             }
 
             if (mMoofOffset > 0) {
                 int64_t duration;
-                if (track->meta->findInt64(kKeyDuration, &duration)) {
+                if (track->meta.findInt64(kKeyDuration, &duration)) {
                     // nothing fancy, just pick a frame near 1/4th of the duration
-                    track->meta->setInt64(
+                    track->meta.setInt64(
                             kKeyThumbnailTime, duration / 4);
                 }
             } else {
@@ -544,7 +544,7 @@
                         && track->sampleTable->getMetaDataForSample(
                             sampleIndex, NULL /* offset */, NULL /* size */,
                             &sampleTime) == OK) {
-                    track->meta->setInt64(
+                    track->meta.setInt64(
                             kKeyThumbnailTime,
                             ((int64_t)sampleTime * 1000000) / track->timescale);
                 }
@@ -552,7 +552,8 @@
         }
     }
 
-    return track->meta;
+    meta = track->meta;
+    return OK;
 }
 
 status_t MPEG4Extractor::readMetaData() {
@@ -610,8 +611,8 @@
             }
             mLastTrack = track;
 
-            track->meta = meta;
-            track->meta->setInt32(kKeyTrackID, imageIndex);
+            track->meta = *(meta.get());
+            track->meta.setInt32(kKeyTrackID, imageIndex);
             track->includes_expensive_metadata = false;
             track->skipTrack = false;
             track->timescale = 0;
@@ -620,16 +621,16 @@
 
     if (mInitCheck == OK) {
         if (findTrackByMimePrefix("video/") != NULL) {
-            mFileMetaData->setCString(
+            mFileMetaData.setCString(
                     kKeyMIMEType, MEDIA_MIMETYPE_CONTAINER_MPEG4);
         } else if (findTrackByMimePrefix("audio/") != NULL) {
-            mFileMetaData->setCString(kKeyMIMEType, "audio/mp4");
+            mFileMetaData.setCString(kKeyMIMEType, "audio/mp4");
         } else if (findTrackByMimePrefix(
                 MEDIA_MIMETYPE_IMAGE_ANDROID_HEIC) != NULL) {
-            mFileMetaData->setCString(
+            mFileMetaData.setCString(
                     kKeyMIMEType, MEDIA_MIMETYPE_CONTAINER_HEIF);
         } else {
-            mFileMetaData->setCString(kKeyMIMEType, "application/octet-stream");
+            mFileMetaData.setCString(kKeyMIMEType, "application/octet-stream");
         }
     } else {
         mInitCheck = err;
@@ -654,7 +655,7 @@
             memcpy(ptr + 20, mPssh[i].data, mPssh[i].datalen);
             ptr += (20 + mPssh[i].datalen);
         }
-        mFileMetaData->setData(kKeyPssh, 'pssh', buf, psshsize);
+        mFileMetaData.setData(kKeyPssh, 'pssh', buf, psshsize);
         free(buf);
     }
 
@@ -902,11 +903,10 @@
                 }
                 mLastTrack = track;
 
-                track->meta = new MetaData;
                 track->includes_expensive_metadata = false;
                 track->skipTrack = false;
                 track->timescale = 0;
-                track->meta->setCString(kKeyMIMEType, "application/octet-stream");
+                track->meta.setCString(kKeyMIMEType, "application/octet-stream");
                 track->has_elst = false;
             }
 
@@ -930,7 +930,7 @@
             if (isTrack) {
                 int32_t trackId;
                 // There must be exact one track header per track.
-                if (!mLastTrack->meta->findInt32(kKeyTrackID, &trackId)) {
+                if (!mLastTrack->meta.findInt32(kKeyTrackID, &trackId)) {
                     mLastTrack->skipTrack = true;
                 }
 
@@ -1037,12 +1037,12 @@
                 return ERROR_MALFORMED;
             }
 
-            mLastTrack->meta->setCString(kKeyMIMEType, FourCC2MIME(original_fourcc));
+            mLastTrack->meta.setCString(kKeyMIMEType, FourCC2MIME(original_fourcc));
             uint32_t num_channels = 0;
             uint32_t sample_rate = 0;
             if (AdjustChannelsAndRate(original_fourcc, &num_channels, &sample_rate)) {
-                mLastTrack->meta->setInt32(kKeyChannelCount, num_channels);
-                mLastTrack->meta->setInt32(kKeySampleRate, sample_rate);
+                mLastTrack->meta.setInt32(kKeyChannelCount, num_channels);
+                mLastTrack->meta.setInt32(kKeySampleRate, sample_rate);
             }
             break;
         }
@@ -1095,9 +1095,9 @@
             if (mLastTrack == NULL)
                 return ERROR_MALFORMED;
 
-            mLastTrack->meta->setInt32(kKeyCryptoMode, defaultAlgorithmId);
-            mLastTrack->meta->setInt32(kKeyCryptoDefaultIVSize, defaultIVSize);
-            mLastTrack->meta->setData(kKeyCryptoKey, 'tenc', defaultKeyId, 16);
+            mLastTrack->meta.setInt32(kKeyCryptoMode, defaultAlgorithmId);
+            mLastTrack->meta.setInt32(kKeyCryptoDefaultIVSize, defaultIVSize);
+            mLastTrack->meta.setData(kKeyCryptoKey, 'tenc', defaultKeyId, 16);
             break;
         }
 
@@ -1231,7 +1231,7 @@
                 }
             }
             if (duration != 0 && mLastTrack->timescale != 0) {
-                mLastTrack->meta->setInt64(
+                mLastTrack->meta.setInt64(
                         kKeyDuration, (duration * 1000000) / mLastTrack->timescale);
             }
 
@@ -1259,7 +1259,7 @@
             lang_code[2] = (lang[1] & 0x1f) + 0x60;
             lang_code[3] = '\0';
 
-            mLastTrack->meta->setCString(
+            mLastTrack->meta.setCString(
                     kKeyMediaLanguage, lang_code);
 
             break;
@@ -1294,7 +1294,7 @@
                 if (mLastTrack == NULL)
                     return ERROR_MALFORMED;
 
-                CHECK(mLastTrack->meta->findCString(kKeyMIMEType, &mime));
+                CHECK(mLastTrack->meta.findCString(kKeyMIMEType, &mime));
                 if (strcasecmp(mime, MEDIA_MIMETYPE_TEXT_3GPP) &&
                         strcasecmp(mime, "application/octet-stream")) {
                     // For now we only support a single type of media per track.
@@ -1335,7 +1335,7 @@
             }
 
             String8 mimeFormat((const char *)(buffer->data()), chunk_data_size);
-            mLastTrack->meta->setCString(kKeyMIMEType, mimeFormat.string());
+            mLastTrack->meta.setCString(kKeyMIMEType, mimeFormat.string());
 
             break;
         }
@@ -1411,13 +1411,13 @@
 
             if (chunk_type != FOURCC('e', 'n', 'c', 'a')) {
                 // if the chunk type is enca, we'll get the type from the frma box later
-                mLastTrack->meta->setCString(kKeyMIMEType, FourCC2MIME(chunk_type));
+                mLastTrack->meta.setCString(kKeyMIMEType, FourCC2MIME(chunk_type));
                 AdjustChannelsAndRate(chunk_type, &num_channels, &sample_rate);
             }
             ALOGV("*** coding='%s' %d channels, size %d, rate %d\n",
                    chunk, num_channels, sample_size, sample_rate);
-            mLastTrack->meta->setInt32(kKeyChannelCount, num_channels);
-            mLastTrack->meta->setInt32(kKeySampleRate, sample_rate);
+            mLastTrack->meta.setInt32(kKeyChannelCount, num_channels);
+            mLastTrack->meta.setInt32(kKeySampleRate, sample_rate);
 
             while (*offset < stop_offset) {
                 status_t err = parseChunk(offset, depth + 1);
@@ -1471,10 +1471,10 @@
 
             if (chunk_type != FOURCC('e', 'n', 'c', 'v')) {
                 // if the chunk type is encv, we'll get the type from the frma box later
-                mLastTrack->meta->setCString(kKeyMIMEType, FourCC2MIME(chunk_type));
+                mLastTrack->meta.setCString(kKeyMIMEType, FourCC2MIME(chunk_type));
             }
-            mLastTrack->meta->setInt32(kKeyWidth, width);
-            mLastTrack->meta->setInt32(kKeyHeight, height);
+            mLastTrack->meta.setInt32(kKeyWidth, width);
+            mLastTrack->meta.setInt32(kKeyHeight, height);
 
             off64_t stop_offset = *offset + chunk_size;
             *offset = data_offset + sizeof(buffer);
@@ -1562,12 +1562,12 @@
                     ALOGE("max sample size too big: %zu", max_size);
                     return ERROR_MALFORMED;
                 }
-                mLastTrack->meta->setInt32(kKeyMaxInputSize, max_size + 10 * 2);
+                mLastTrack->meta.setInt32(kKeyMaxInputSize, max_size + 10 * 2);
             } else {
                 // No size was specified. Pick a conservatively large size.
                 uint32_t width, height;
-                if (!mLastTrack->meta->findInt32(kKeyWidth, (int32_t*)&width) ||
-                    !mLastTrack->meta->findInt32(kKeyHeight,(int32_t*) &height)) {
+                if (!mLastTrack->meta.findInt32(kKeyWidth, (int32_t*)&width) ||
+                    !mLastTrack->meta.findInt32(kKeyHeight,(int32_t*) &height)) {
                     ALOGE("No width or height, assuming worst case 1080p");
                     width = 1920;
                     height = 1080;
@@ -1582,7 +1582,7 @@
                 }
 
                 const char *mime;
-                CHECK(mLastTrack->meta->findCString(kKeyMIMEType, &mime));
+                CHECK(mLastTrack->meta.findCString(kKeyMIMEType, &mime));
                 if (!strcmp(mime, MEDIA_MIMETYPE_VIDEO_AVC)
                         || !strcmp(mime, MEDIA_MIMETYPE_VIDEO_HEVC)) {
                     // AVC & HEVC requires compression ratio of at least 2, and uses
@@ -1596,26 +1596,26 @@
                 // HACK: allow 10% overhead
                 // TODO: read sample size from traf atom for fragmented MPEG4.
                 max_size += max_size / 10;
-                mLastTrack->meta->setInt32(kKeyMaxInputSize, max_size);
+                mLastTrack->meta.setInt32(kKeyMaxInputSize, max_size);
             }
 
             // NOTE: setting another piece of metadata invalidates any pointers (such as the
             // mimetype) previously obtained, so don't cache them.
             const char *mime;
-            CHECK(mLastTrack->meta->findCString(kKeyMIMEType, &mime));
+            CHECK(mLastTrack->meta.findCString(kKeyMIMEType, &mime));
             // Calculate average frame rate.
             if (!strncasecmp("video/", mime, 6)) {
                 size_t nSamples = mLastTrack->sampleTable->countSamples();
                 if (nSamples == 0) {
                     int32_t trackId;
-                    if (mLastTrack->meta->findInt32(kKeyTrackID, &trackId)) {
+                    if (mLastTrack->meta.findInt32(kKeyTrackID, &trackId)) {
                         for (size_t i = 0; i < mTrex.size(); i++) {
                             Trex *t = &mTrex.editItemAt(i);
                             if (t->track_ID == (uint32_t) trackId) {
                                 if (t->default_sample_duration > 0) {
                                     int32_t frameRate =
                                             mLastTrack->timescale / t->default_sample_duration;
-                                    mLastTrack->meta->setInt32(kKeyFrameRate, frameRate);
+                                    mLastTrack->meta.setInt32(kKeyFrameRate, frameRate);
                                 }
                                 break;
                             }
@@ -1623,15 +1623,15 @@
                     }
                 } else {
                     int64_t durationUs;
-                    if (mLastTrack->meta->findInt64(kKeyDuration, &durationUs)) {
+                    if (mLastTrack->meta.findInt64(kKeyDuration, &durationUs)) {
                         if (durationUs > 0) {
                             int32_t frameRate = (nSamples * 1000000LL +
                                         (durationUs >> 1)) / durationUs;
-                            mLastTrack->meta->setInt32(kKeyFrameRate, frameRate);
+                            mLastTrack->meta.setInt32(kKeyFrameRate, frameRate);
                         }
                     }
                     ALOGV("setting frame count %zu", nSamples);
-                    mLastTrack->meta->setInt32(kKeyFrameCount, nSamples);
+                    mLastTrack->meta.setInt32(kKeyFrameCount, nSamples);
                 }
             }
 
@@ -1739,7 +1739,7 @@
             if (buffer[len - 1] != '/') {
                 buffer[len] = '/';
             }
-            mFileMetaData->setCString(kKeyLocation, &buffer[0]);
+            mFileMetaData.setCString(kKeyLocation, &buffer[0]);
             break;
         }
 
@@ -1769,7 +1769,7 @@
             if (mLastTrack == NULL)
                 return ERROR_MALFORMED;
 
-            mLastTrack->meta->setData(
+            mLastTrack->meta.setData(
                     kKeyESDS, kTypeESDS, &buffer[4], chunk_data_size - 4);
 
             if (mPath.size() >= 2
@@ -1794,7 +1794,7 @@
                 uint8_t objectTypeIndication;
                 if (esds.getObjectTypeIndication(&objectTypeIndication) == OK) {
                     if (objectTypeIndication >= 0x60 && objectTypeIndication <= 0x65) {
-                        mLastTrack->meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
+                        mLastTrack->meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
                     }
                 }
             }
@@ -1821,10 +1821,10 @@
             uint32_t maxBitrate = U32_AT(&buffer[4]);
             uint32_t avgBitrate = U32_AT(&buffer[8]);
             if (maxBitrate > 0 && maxBitrate < INT32_MAX) {
-                mLastTrack->meta->setInt32(kKeyMaxBitRate, (int32_t)maxBitrate);
+                mLastTrack->meta.setInt32(kKeyMaxBitRate, (int32_t)maxBitrate);
             }
             if (avgBitrate > 0 && avgBitrate < INT32_MAX) {
-                mLastTrack->meta->setInt32(kKeyBitRate, (int32_t)avgBitrate);
+                mLastTrack->meta.setInt32(kKeyBitRate, (int32_t)avgBitrate);
             }
             break;
         }
@@ -1848,7 +1848,7 @@
             if (mLastTrack == NULL)
                 return ERROR_MALFORMED;
 
-            mLastTrack->meta->setData(
+            mLastTrack->meta.setData(
                     kKeyAVCC, kTypeAVCC, buffer->data(), chunk_data_size);
 
             break;
@@ -1870,7 +1870,7 @@
             if (mLastTrack == NULL)
                 return ERROR_MALFORMED;
 
-            mLastTrack->meta->setData(
+            mLastTrack->meta.setData(
                     kKeyHVCC, kTypeHVCC, buffer->data(), chunk_data_size);
 
             *offset += chunk_size;
@@ -1906,7 +1906,7 @@
             if (mLastTrack == NULL)
                 return ERROR_MALFORMED;
 
-            mLastTrack->meta->setData(kKeyD263, kTypeD263, buffer, chunk_data_size);
+            mLastTrack->meta.setData(kKeyD263, kTypeD263, buffer, chunk_data_size);
 
             break;
         }
@@ -2034,12 +2034,12 @@
                 duration = d32;
             }
             if (duration != 0 && mHeaderTimescale != 0 && duration < UINT64_MAX / 1000000) {
-                mFileMetaData->setInt64(kKeyDuration, duration * 1000000 / mHeaderTimescale);
+                mFileMetaData.setInt64(kKeyDuration, duration * 1000000 / mHeaderTimescale);
             }
 
             String8 s;
             if (convertTimeToDate(creationTime, &s)) {
-                mFileMetaData->setCString(kKeyDate, s.string());
+                mFileMetaData.setCString(kKeyDate, s.string());
             }
 
 
@@ -2084,7 +2084,7 @@
             }
 
             if (duration != 0 && mHeaderTimescale != 0) {
-                mFileMetaData->setInt64(kKeyDuration, duration * 1000000 / mHeaderTimescale);
+                mFileMetaData.setInt64(kKeyDuration, duration * 1000000 / mHeaderTimescale);
             }
 
             break;
@@ -2118,7 +2118,7 @@
             // for a practical reason as various MPEG4 containers use it.
             if (type == FOURCC('t', 'e', 'x', 't') || type == FOURCC('s', 'b', 't', 'l')) {
                 if (mLastTrack != NULL) {
-                    mLastTrack->meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_TEXT_3GPP);
+                    mLastTrack->meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_TEXT_3GPP);
                 }
             }
 
@@ -2165,7 +2165,7 @@
             uint32_t type;
             const void *data;
             size_t size = 0;
-            if (!mLastTrack->meta->findData(
+            if (!mLastTrack->meta.findData(
                     kKeyTextFormatData, &type, &data, &size)) {
                 size = 0;
             }
@@ -2193,7 +2193,7 @@
                 return ERROR_IO;
             }
 
-            mLastTrack->meta->setData(
+            mLastTrack->meta.setData(
                     kKeyTextFormatData, 0, buffer, size + chunk_size);
 
             delete[] buffer;
@@ -2206,31 +2206,29 @@
         {
             *offset += chunk_size;
 
-            if (mFileMetaData != NULL) {
-                ALOGV("chunk_data_size = %" PRId64 " and data_offset = %" PRId64,
-                      chunk_data_size, data_offset);
+            ALOGV("chunk_data_size = %" PRId64 " and data_offset = %" PRId64,
+                  chunk_data_size, data_offset);
 
-                if (chunk_data_size < 0 || static_cast<uint64_t>(chunk_data_size) >= SIZE_MAX - 1) {
-                    return ERROR_MALFORMED;
-                }
-                sp<ABuffer> buffer = new ABuffer(chunk_data_size + 1);
-                if (buffer->data() == NULL) {
-                    ALOGE("b/28471206");
-                    return NO_MEMORY;
-                }
-                if (mDataSource->readAt(
-                    data_offset, buffer->data(), chunk_data_size) != (ssize_t)chunk_data_size) {
-                    return ERROR_IO;
-                }
-                const int kSkipBytesOfDataBox = 16;
-                if (chunk_data_size <= kSkipBytesOfDataBox) {
-                    return ERROR_MALFORMED;
-                }
-
-                mFileMetaData->setData(
-                    kKeyAlbumArt, MetaData::TYPE_NONE,
-                    buffer->data() + kSkipBytesOfDataBox, chunk_data_size - kSkipBytesOfDataBox);
+            if (chunk_data_size < 0 || static_cast<uint64_t>(chunk_data_size) >= SIZE_MAX - 1) {
+                return ERROR_MALFORMED;
             }
+            sp<ABuffer> buffer = new ABuffer(chunk_data_size + 1);
+            if (buffer->data() == NULL) {
+                ALOGE("b/28471206");
+                return NO_MEMORY;
+            }
+            if (mDataSource->readAt(
+                data_offset, buffer->data(), chunk_data_size) != (ssize_t)chunk_data_size) {
+                return ERROR_IO;
+            }
+            const int kSkipBytesOfDataBox = 16;
+            if (chunk_data_size <= kSkipBytesOfDataBox) {
+                return ERROR_MALFORMED;
+            }
+
+            mFileMetaData.setData(
+                kKeyAlbumArt, MetaData::TYPE_NONE,
+                buffer->data() + kSkipBytesOfDataBox, chunk_data_size - kSkipBytesOfDataBox);
 
             break;
         }
@@ -2462,9 +2460,9 @@
     if (mLastTrack == NULL) {
         return ERROR_MALFORMED;
     }
-    mLastTrack->meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC3);
-    mLastTrack->meta->setInt32(kKeyChannelCount, channelCount);
-    mLastTrack->meta->setInt32(kKeySampleRate, sampleRate);
+    mLastTrack->meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC3);
+    mLastTrack->meta.setInt32(kKeyChannelCount, channelCount);
+    mLastTrack->meta.setInt32(kKeySampleRate, sampleRate);
     return OK;
 }
 
@@ -2584,8 +2582,8 @@
         return ERROR_MALFORMED;
 
     int64_t metaDuration;
-    if (!mLastTrack->meta->findInt64(kKeyDuration, &metaDuration) || metaDuration == 0) {
-        mLastTrack->meta->setInt64(kKeyDuration, sidxDuration);
+    if (!mLastTrack->meta.findInt64(kKeyDuration, &metaDuration) || metaDuration == 0) {
+        mLastTrack->meta.setInt64(kKeyDuration, sidxDuration);
     }
     return OK;
 }
@@ -2683,7 +2681,7 @@
             return ERROR_MALFORMED;
         }
         if (!strcasecmp(mMetaKeyMap[index].c_str(), "com.android.capture.fps")) {
-            mFileMetaData->setFloat(kKeyCaptureFramerate, *(float *)&val);
+            mFileMetaData.setFloat(kKeyCaptureFramerate, *(float *)&val);
         }
     } else if (dataType == 67 && dataSize >= 4) {
         // BE signed int32
@@ -2692,7 +2690,7 @@
             return ERROR_MALFORMED;
         }
         if (!strcasecmp(mMetaKeyMap[index].c_str(), "com.android.video.temporal_layers_count")) {
-            mFileMetaData->setInt32(kKeyTemporalLayerCount, val);
+            mFileMetaData.setInt32(kKeyTemporalLayerCount, val);
         }
     } else {
         // add more keys if needed
@@ -2746,7 +2744,7 @@
     if (mLastTrack == NULL)
         return ERROR_MALFORMED;
 
-    mLastTrack->meta->setInt32(kKeyTrackID, id);
+    mLastTrack->meta.setInt32(kKeyTrackID, id);
 
     size_t matrixOffset = dynSize + 16;
     int32_t a00 = U32_AT(&buffer[matrixOffset]);
@@ -2782,15 +2780,15 @@
     }
 
     if (rotationDegrees != 0) {
-        mLastTrack->meta->setInt32(kKeyRotation, rotationDegrees);
+        mLastTrack->meta.setInt32(kKeyRotation, rotationDegrees);
     }
 
     // Handle presentation display size, which could be different
     // from the image size indicated by kKeyWidth and kKeyHeight.
     uint32_t width = U32_AT(&buffer[dynSize + 52]);
     uint32_t height = U32_AT(&buffer[dynSize + 56]);
-    mLastTrack->meta->setInt32(kKeyDisplayWidth, width >> 16);
-    mLastTrack->meta->setInt32(kKeyDisplayHeight, height >> 16);
+    mLastTrack->meta.setInt32(kKeyDisplayWidth, width >> 16);
+    mLastTrack->meta.setInt32(kKeyDisplayHeight, height >> 16);
 
     return OK;
 }
@@ -2875,7 +2873,7 @@
                 sprintf(tmp, "%d",
                         (int)buffer[size - 1]);
 
-                mFileMetaData->setCString(kKeyCompilation, tmp);
+                mFileMetaData.setCString(kKeyCompilation, tmp);
             }
             break;
         }
@@ -2887,7 +2885,7 @@
                 uint16_t* pTotalTracks = (uint16_t*)&buffer[12];
                 sprintf(tmp, "%d/%d", ntohs(*pTrack), ntohs(*pTotalTracks));
 
-                mFileMetaData->setCString(kKeyCDTrackNumber, tmp);
+                mFileMetaData.setCString(kKeyCDTrackNumber, tmp);
             }
             break;
         }
@@ -2899,7 +2897,7 @@
                 uint16_t* pTotalDiscs = (uint16_t*)&buffer[12];
                 sprintf(tmp, "%d/%d", ntohs(*pDisc), ntohs(*pTotalDiscs));
 
-                mFileMetaData->setCString(kKeyDiscNumber, tmp);
+                mFileMetaData.setCString(kKeyDiscNumber, tmp);
             }
             break;
         }
@@ -2943,8 +2941,8 @@
                             return ERROR_MALFORMED;
                         }
 
-                        mLastTrack->meta->setInt32(kKeyEncoderDelay, delay);
-                        mLastTrack->meta->setInt32(kKeyEncoderPadding, padding);
+                        mLastTrack->meta.setInt32(kKeyEncoderDelay, delay);
+                        mLastTrack->meta.setInt32(kKeyEncoderPadding, padding);
                     }
                 }
 
@@ -2959,9 +2957,9 @@
             break;
     }
 
-    if (size >= 8 && metadataKey && !mFileMetaData->hasData(metadataKey)) {
+    if (size >= 8 && metadataKey && !mFileMetaData.hasData(metadataKey)) {
         if (metadataKey == kKeyAlbumArt) {
-            mFileMetaData->setData(
+            mFileMetaData.setData(
                     kKeyAlbumArt, MetaData::TYPE_NONE,
                     buffer + 8, size - 8);
         } else if (metadataKey == kKeyGenre) {
@@ -2978,18 +2976,18 @@
                 char genre[10];
                 sprintf(genre, "%d", genrecode);
 
-                mFileMetaData->setCString(metadataKey, genre);
+                mFileMetaData.setCString(metadataKey, genre);
             } else if (flags == 1) {
                 // custom genre string
                 buffer[size] = '\0';
 
-                mFileMetaData->setCString(
+                mFileMetaData.setCString(
                         metadataKey, (const char *)buffer + 8);
             }
         } else {
             buffer[size] = '\0';
 
-            mFileMetaData->setCString(
+            mFileMetaData.setCString(
                     metadataKey, (const char *)buffer + 8);
         }
     }
@@ -3029,11 +3027,11 @@
                 primaries, transfer, coeffs, fullRange, aspects);
 
         // only store the first color specification
-        if (!mLastTrack->meta->hasData(kKeyColorPrimaries)) {
-            mLastTrack->meta->setInt32(kKeyColorPrimaries, aspects.mPrimaries);
-            mLastTrack->meta->setInt32(kKeyTransferFunction, aspects.mTransfer);
-            mLastTrack->meta->setInt32(kKeyColorMatrix, aspects.mMatrixCoeffs);
-            mLastTrack->meta->setInt32(kKeyColorRange, aspects.mRange);
+        if (!mLastTrack->meta.hasData(kKeyColorPrimaries)) {
+            mLastTrack->meta.setInt32(kKeyColorPrimaries, aspects.mPrimaries);
+            mLastTrack->meta.setInt32(kKeyTransferFunction, aspects.mTransfer);
+            mLastTrack->meta.setInt32(kKeyColorMatrix, aspects.mMatrixCoeffs);
+            mLastTrack->meta.setInt32(kKeyColorRange, aspects.mRange);
         }
     }
 
@@ -3088,7 +3086,7 @@
               char tmp[4];
               sprintf(tmp, "%u", buffer[size - 1]);
 
-              mFileMetaData->setCString(kKeyCDTrackNumber, tmp);
+              mFileMetaData.setCString(kKeyCDTrackNumber, tmp);
             }
 
             metadataKey = kKeyAlbum;
@@ -3109,7 +3107,7 @@
             if (year < 10000) {
                 sprintf(tmp, "%u", year);
 
-                mFileMetaData->setCString(kKeyYear, tmp);
+                mFileMetaData.setCString(kKeyYear, tmp);
             }
             break;
         }
@@ -3154,11 +3152,11 @@
 
         if (isUTF8) {
             buffer[size] = 0;
-            mFileMetaData->setCString(metadataKey, (const char *)buffer + 6);
+            mFileMetaData.setCString(metadataKey, (const char *)buffer + 6);
         } else {
             // Convert from UTF-16 string to UTF-8 string.
             String8 tmpUTF8str(framedata, len16);
-            mFileMetaData->setCString(metadataKey, tmpUTF8str.string());
+            mFileMetaData.setCString(metadataKey, tmpUTF8str.string());
         }
     }
 
@@ -3193,7 +3191,7 @@
         static const size_t kNumMapEntries = sizeof(kMap) / sizeof(kMap[0]);
 
         for (size_t i = 0; i < kNumMapEntries; ++i) {
-            if (!mFileMetaData->hasData(kMap[i].key)) {
+            if (!mFileMetaData.hasData(kMap[i].key)) {
                 ID3::Iterator *it = new ID3::Iterator(id3, kMap[i].tag1);
                 if (it->done()) {
                     delete it;
@@ -3209,7 +3207,7 @@
                 it->getString(&s);
                 delete it;
 
-                mFileMetaData->setCString(kMap[i].key, s);
+                mFileMetaData.setCString(kMap[i].key, s);
             }
         }
 
@@ -3218,13 +3216,13 @@
         const void *data = id3.getAlbumArt(&dataSize, &mime);
 
         if (data) {
-            mFileMetaData->setData(kKeyAlbumArt, MetaData::TYPE_NONE, data, dataSize);
-            mFileMetaData->setCString(kKeyAlbumArtMIME, mime.string());
+            mFileMetaData.setData(kKeyAlbumArt, MetaData::TYPE_NONE, data, dataSize);
+            mFileMetaData.setCString(kKeyAlbumArtMIME, mime.string());
         }
     }
 }
 
-MediaSourceBase *MPEG4Extractor::getTrack(size_t index) {
+MediaTrack *MPEG4Extractor::getTrack(size_t index) {
     status_t err;
     if ((err = readMetaData()) != OK) {
         return NULL;
@@ -3247,7 +3245,7 @@
 
     Trex *trex = NULL;
     int32_t trackId;
-    if (track->meta->findInt32(kKeyTrackID, &trackId)) {
+    if (track->meta.findInt32(kKeyTrackID, &trackId)) {
         for (size_t i = 0; i < mTrex.size(); i++) {
             Trex *t = &mTrex.editItemAt(i);
             if (t->track_ID == (uint32_t) trackId) {
@@ -3263,7 +3261,7 @@
     ALOGV("getTrack called, pssh: %zu", mPssh.size());
 
     const char *mime;
-    if (!track->meta->findCString(kKeyMIMEType, &mime)) {
+    if (!track->meta.findCString(kKeyMIMEType, &mime)) {
         return NULL;
     }
 
@@ -3272,7 +3270,7 @@
         uint32_t type;
         const void *data;
         size_t size;
-        if (!track->meta->findData(kKeyAVCC, &type, &data, &size)) {
+        if (!track->meta.findData(kKeyAVCC, &type, &data, &size)) {
             return NULL;
         }
 
@@ -3286,7 +3284,7 @@
         uint32_t type;
         const void *data;
         size_t size;
-        if (!track->meta->findData(kKeyHVCC, &type, &data, &size)) {
+        if (!track->meta.findData(kKeyHVCC, &type, &data, &size)) {
             return NULL;
         }
 
@@ -3313,25 +3311,25 @@
 // static
 status_t MPEG4Extractor::verifyTrack(Track *track) {
     const char *mime;
-    CHECK(track->meta->findCString(kKeyMIMEType, &mime));
+    CHECK(track->meta.findCString(kKeyMIMEType, &mime));
 
     uint32_t type;
     const void *data;
     size_t size;
     if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC)) {
-        if (!track->meta->findData(kKeyAVCC, &type, &data, &size)
+        if (!track->meta.findData(kKeyAVCC, &type, &data, &size)
                 || type != kTypeAVCC) {
             return ERROR_MALFORMED;
         }
     } else if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_HEVC)) {
-        if (!track->meta->findData(kKeyHVCC, &type, &data, &size)
+        if (!track->meta.findData(kKeyHVCC, &type, &data, &size)
                     || type != kTypeHVCC) {
             return ERROR_MALFORMED;
         }
     } else if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_MPEG4)
             || !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_MPEG2)
             || !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC)) {
-        if (!track->meta->findData(kKeyESDS, &type, &data, &size)
+        if (!track->meta.findData(kKeyESDS, &type, &data, &size)
                 || type != kTypeESDS) {
             return ERROR_MALFORMED;
         }
@@ -3417,7 +3415,7 @@
         if (mLastTrack == NULL)
             return ERROR_MALFORMED;
 
-        mLastTrack->meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_QCELP);
+        mLastTrack->meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_QCELP);
         return OK;
     }
 
@@ -3434,10 +3432,10 @@
         uint32_t avgBitrate = 0;
         esds.getBitRate(&maxBitrate, &avgBitrate);
         if (maxBitrate > 0 && maxBitrate < INT32_MAX) {
-            mLastTrack->meta->setInt32(kKeyMaxBitRate, (int32_t)maxBitrate);
+            mLastTrack->meta.setInt32(kKeyMaxBitRate, (int32_t)maxBitrate);
         }
         if (avgBitrate > 0 && avgBitrate < INT32_MAX) {
-            mLastTrack->meta->setInt32(kKeyBitRate, (int32_t)avgBitrate);
+            mLastTrack->meta.setInt32(kKeyBitRate, (int32_t)avgBitrate);
         }
     }
 
@@ -3481,7 +3479,7 @@
         return ERROR_MALFORMED;
 
     //keep AOT type
-    mLastTrack->meta->setInt32(kKeyAACAOT, objectType);
+    mLastTrack->meta.setInt32(kKeyAACAOT, objectType);
 
     uint32_t freqIndex = br.getBits(4);
 
@@ -3519,7 +3517,7 @@
             extSampleRate = kSamplingRate[extFreqIndex];
         }
         //TODO: save the extension sampling rate value in meta data =>
-        //      mLastTrack->meta->setInt32(kKeyExtSampleRate, extSampleRate);
+        //      mLastTrack->meta.setInt32(kKeyExtSampleRate, extSampleRate);
     }
 
     switch (numChannels) {
@@ -3672,24 +3670,24 @@
         return ERROR_MALFORMED;
 
     int32_t prevSampleRate;
-    CHECK(mLastTrack->meta->findInt32(kKeySampleRate, &prevSampleRate));
+    CHECK(mLastTrack->meta.findInt32(kKeySampleRate, &prevSampleRate));
 
     if (prevSampleRate != sampleRate) {
         ALOGV("mpeg4 audio sample rate different from previous setting. "
              "was: %d, now: %d", prevSampleRate, sampleRate);
     }
 
-    mLastTrack->meta->setInt32(kKeySampleRate, sampleRate);
+    mLastTrack->meta.setInt32(kKeySampleRate, sampleRate);
 
     int32_t prevChannelCount;
-    CHECK(mLastTrack->meta->findInt32(kKeyChannelCount, &prevChannelCount));
+    CHECK(mLastTrack->meta.findInt32(kKeyChannelCount, &prevChannelCount));
 
     if (prevChannelCount != numChannels) {
         ALOGV("mpeg4 audio channel count different from previous setting. "
              "was: %d, now: %d", prevChannelCount, numChannels);
     }
 
-    mLastTrack->meta->setInt32(kKeyChannelCount, numChannels);
+    mLastTrack->meta.setInt32(kKeyChannelCount, numChannels);
 
     return OK;
 }
@@ -3697,7 +3695,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 MPEG4Source::MPEG4Source(
-        const sp<MetaData> &format,
+        MetaDataBase &format,
         DataSourceBase *dataSource,
         int32_t timeScale,
         const sp<SampleTable> &sampleTable,
@@ -3734,20 +3732,20 @@
 
     memset(&mTrackFragmentHeaderInfo, 0, sizeof(mTrackFragmentHeaderInfo));
 
-    mFormat->findInt32(kKeyCryptoMode, &mCryptoMode);
+    mFormat.findInt32(kKeyCryptoMode, &mCryptoMode);
     mDefaultIVSize = 0;
-    mFormat->findInt32(kKeyCryptoDefaultIVSize, &mDefaultIVSize);
+    mFormat.findInt32(kKeyCryptoDefaultIVSize, &mDefaultIVSize);
     uint32_t keytype;
     const void *key;
     size_t keysize;
-    if (mFormat->findData(kKeyCryptoKey, &keytype, &key, &keysize)) {
+    if (mFormat.findData(kKeyCryptoKey, &keytype, &key, &keysize)) {
         CHECK(keysize <= 16);
         memset(mCryptoKey, 0, 16);
         memcpy(mCryptoKey, key, keysize);
     }
 
     const char *mime;
-    bool success = mFormat->findCString(kKeyMIMEType, &mime);
+    bool success = mFormat.findCString(kKeyMIMEType, &mime);
     CHECK(success);
 
     mIsAVC = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC);
@@ -3758,7 +3756,7 @@
         uint32_t type;
         const void *data;
         size_t size;
-        CHECK(format->findData(kKeyAVCC, &type, &data, &size));
+        CHECK(format.findData(kKeyAVCC, &type, &data, &size));
 
         const uint8_t *ptr = (const uint8_t *)data;
 
@@ -3771,7 +3769,7 @@
         uint32_t type;
         const void *data;
         size_t size;
-        CHECK(format->findData(kKeyHVCC, &type, &data, &size));
+        CHECK(format.findData(kKeyHVCC, &type, &data, &size));
 
         const uint8_t *ptr = (const uint8_t *)data;
 
@@ -3781,7 +3779,7 @@
         mNALLengthSize = 1 + (ptr[14 + 7] & 3);
     }
 
-    CHECK(format->findInt32(kKeyTrackID, &mTrackId));
+    CHECK(format.findInt32(kKeyTrackID, &mTrackId));
 
 }
 
@@ -3801,7 +3799,7 @@
     free(mCurrentSampleInfoOffsets);
 }
 
-status_t MPEG4Source::start(MetaData *params) {
+status_t MPEG4Source::start(MetaDataBase *params) {
     Mutex::Autolock autoLock(mLock);
 
     CHECK(!mStarted);
@@ -3815,7 +3813,7 @@
     }
 
     int32_t tmp;
-    CHECK(mFormat->findInt32(kKeyMaxInputSize, &tmp));
+    CHECK(mFormat.findInt32(kKeyMaxInputSize, &tmp));
     size_t max_size = tmp;
 
     // A somewhat arbitrary limit that should be sufficient for 8k video frames
@@ -4142,7 +4140,7 @@
 
     drmoffset += mCurrentMoofOffset;
     int ivlength;
-    CHECK(mFormat->findInt32(kKeyCryptoDefaultIVSize, &ivlength));
+    CHECK(mFormat.findInt32(kKeyCryptoDefaultIVSize, &ivlength));
 
     // only 0, 8 and 16 byte initialization vectors are supported
     if (ivlength != 0 && ivlength != 8 && ivlength != 16) {
@@ -4459,10 +4457,10 @@
     return OK;
 }
 
-sp<MetaData> MPEG4Source::getFormat() {
+status_t MPEG4Source::getFormat(MetaDataBase &meta) {
     Mutex::Autolock autoLock(mLock);
-
-    return mFormat;
+    meta = mFormat;
+    return OK;
 }
 
 size_t MPEG4Source::parseNALSize(const uint8_t *data) const {
@@ -4510,7 +4508,7 @@
             CHECK(mSampleTable == NULL);
             CHECK(mItemTable != NULL);
             int32_t imageIndex;
-            if (!mFormat->findInt32(kKeyTrackID, &imageIndex)) {
+            if (!mFormat.findInt32(kKeyTrackID, &imageIndex)) {
                 return ERROR_MALFORMED;
             }
 
@@ -4664,19 +4662,19 @@
 
             CHECK(mBuffer != NULL);
             mBuffer->set_range(0, size);
-            mBuffer->meta_data()->clear();
-            mBuffer->meta_data()->setInt64(
+            mBuffer->meta_data().clear();
+            mBuffer->meta_data().setInt64(
                     kKeyTime, ((int64_t)cts * 1000000) / mTimescale);
-            mBuffer->meta_data()->setInt64(
+            mBuffer->meta_data().setInt64(
                     kKeyDuration, ((int64_t)stts * 1000000) / mTimescale);
 
             if (targetSampleTimeUs >= 0) {
-                mBuffer->meta_data()->setInt64(
+                mBuffer->meta_data().setInt64(
                         kKeyTargetTime, targetSampleTimeUs);
             }
 
             if (isSyncSample) {
-                mBuffer->meta_data()->setInt32(kKeyIsSyncFrame, 1);
+                mBuffer->meta_data().setInt32(kKeyIsSyncFrame, 1);
             }
 
             ++mCurrentSampleIndex;
@@ -4732,7 +4730,7 @@
         // the start code (0x00 00 00 01).
         ssize_t num_bytes_read = 0;
         int32_t drm = 0;
-        bool usesDRM = (mFormat->findInt32(kKeyIsDRM, &drm) && drm != 0);
+        bool usesDRM = (mFormat.findInt32(kKeyIsDRM, &drm) && drm != 0);
         if (usesDRM) {
             num_bytes_read =
                 mDataSource->readAt(offset, (uint8_t*)mBuffer->data(), size);
@@ -4799,25 +4797,25 @@
             mBuffer->set_range(0, dstOffset);
         }
 
-        mBuffer->meta_data()->clear();
-        mBuffer->meta_data()->setInt64(
+        mBuffer->meta_data().clear();
+        mBuffer->meta_data().setInt64(
                 kKeyTime, ((int64_t)cts * 1000000) / mTimescale);
-        mBuffer->meta_data()->setInt64(
+        mBuffer->meta_data().setInt64(
                 kKeyDuration, ((int64_t)stts * 1000000) / mTimescale);
 
         if (targetSampleTimeUs >= 0) {
-            mBuffer->meta_data()->setInt64(
+            mBuffer->meta_data().setInt64(
                     kKeyTargetTime, targetSampleTimeUs);
         }
 
         if (mIsAVC) {
             uint32_t layerId = FindAVCLayerId(
                     (const uint8_t *)mBuffer->data(), mBuffer->range_length());
-            mBuffer->meta_data()->setInt32(kKeyTemporalLayerId, layerId);
+            mBuffer->meta_data().setInt32(kKeyTemporalLayerId, layerId);
         }
 
         if (isSyncSample) {
-            mBuffer->meta_data()->setInt32(kKeyIsSyncFrame, 1);
+            mBuffer->meta_data().setInt32(kKeyIsSyncFrame, 1);
         }
 
         ++mCurrentSampleIndex;
@@ -4945,18 +4943,18 @@
     }
 
     const Sample *smpl = &mCurrentSamples[mCurrentSampleIndex];
-    const sp<MetaData> bufmeta = mBuffer->meta_data();
-    bufmeta->clear();
+    MetaDataBase &bufmeta = mBuffer->meta_data();
+    bufmeta.clear();
     if (smpl->encryptedsizes.size()) {
         // store clear/encrypted lengths in metadata
-        bufmeta->setData(kKeyPlainSizes, 0,
+        bufmeta.setData(kKeyPlainSizes, 0,
                 smpl->clearsizes.array(), smpl->clearsizes.size() * 4);
-        bufmeta->setData(kKeyEncryptedSizes, 0,
+        bufmeta.setData(kKeyEncryptedSizes, 0,
                 smpl->encryptedsizes.array(), smpl->encryptedsizes.size() * 4);
-        bufmeta->setData(kKeyCryptoIV, 0, smpl->iv, 16); // use 16 or the actual size?
-        bufmeta->setInt32(kKeyCryptoDefaultIVSize, mDefaultIVSize);
-        bufmeta->setInt32(kKeyCryptoMode, mCryptoMode);
-        bufmeta->setData(kKeyCryptoKey, 0, mCryptoKey, 16);
+        bufmeta.setData(kKeyCryptoIV, 0, smpl->iv, 16); // use 16 or the actual size?
+        bufmeta.setInt32(kKeyCryptoDefaultIVSize, mDefaultIVSize);
+        bufmeta.setInt32(kKeyCryptoMode, mCryptoMode);
+        bufmeta.setData(kKeyCryptoKey, 0, mCryptoKey, 16);
     }
 
     if ((!mIsAVC && !mIsHEVC)|| mWantsNALFragments) {
@@ -4982,24 +4980,24 @@
 
             CHECK(mBuffer != NULL);
             mBuffer->set_range(0, size);
-            mBuffer->meta_data()->setInt64(
+            mBuffer->meta_data().setInt64(
                     kKeyTime, ((int64_t)cts * 1000000) / mTimescale);
-            mBuffer->meta_data()->setInt64(
+            mBuffer->meta_data().setInt64(
                     kKeyDuration, ((int64_t)smpl->duration * 1000000) / mTimescale);
 
             if (targetSampleTimeUs >= 0) {
-                mBuffer->meta_data()->setInt64(
+                mBuffer->meta_data().setInt64(
                         kKeyTargetTime, targetSampleTimeUs);
             }
 
             if (mIsAVC) {
                 uint32_t layerId = FindAVCLayerId(
                         (const uint8_t *)mBuffer->data(), mBuffer->range_length());
-                mBuffer->meta_data()->setInt32(kKeyTemporalLayerId, layerId);
+                mBuffer->meta_data().setInt32(kKeyTemporalLayerId, layerId);
             }
 
             if (isSyncSample) {
-                mBuffer->meta_data()->setInt32(kKeyIsSyncFrame, 1);
+                mBuffer->meta_data().setInt32(kKeyIsSyncFrame, 1);
             }
 
             ++mCurrentSampleIndex;
@@ -5057,7 +5055,7 @@
         // the start code (0x00 00 00 01).
         ssize_t num_bytes_read = 0;
         int32_t drm = 0;
-        bool usesDRM = (mFormat->findInt32(kKeyIsDRM, &drm) && drm != 0);
+        bool usesDRM = (mFormat.findInt32(kKeyIsDRM, &drm) && drm != 0);
         void *data = NULL;
         bool isMalFormed = false;
         if (usesDRM) {
@@ -5068,8 +5066,7 @@
             }
         } else {
             int32_t max_size;
-            if (mFormat == NULL
-                    || !mFormat->findInt32(kKeyMaxInputSize, &max_size)
+            if (!mFormat.findInt32(kKeyMaxInputSize, &max_size)
                     || !isInRange((size_t)0u, (size_t)max_size, size)) {
                 isMalFormed = true;
             } else {
@@ -5149,18 +5146,18 @@
             mBuffer->set_range(0, dstOffset);
         }
 
-        mBuffer->meta_data()->setInt64(
+        mBuffer->meta_data().setInt64(
                 kKeyTime, ((int64_t)cts * 1000000) / mTimescale);
-        mBuffer->meta_data()->setInt64(
+        mBuffer->meta_data().setInt64(
                 kKeyDuration, ((int64_t)smpl->duration * 1000000) / mTimescale);
 
         if (targetSampleTimeUs >= 0) {
-            mBuffer->meta_data()->setInt64(
+            mBuffer->meta_data().setInt64(
                     kKeyTargetTime, targetSampleTimeUs);
         }
 
         if (isSyncSample) {
-            mBuffer->meta_data()->setInt32(kKeyIsSyncFrame, 1);
+            mBuffer->meta_data().setInt32(kKeyIsSyncFrame, 1);
         }
 
         ++mCurrentSampleIndex;
@@ -5176,8 +5173,7 @@
         const char *mimePrefix) {
     for (Track *track = mFirstTrack; track != NULL; track = track->next) {
         const char *mime;
-        if (track->meta != NULL
-                && track->meta->findCString(kKeyMIMEType, &mime)
+        if (track->meta.findCString(kKeyMIMEType, &mime)
                 && !strncasecmp(mime, mimePrefix, strlen(mimePrefix))) {
             return track;
         }
diff --git a/media/extractors/mp4/MPEG4Extractor.h b/media/extractors/mp4/MPEG4Extractor.h
index 5c86345..9a9f0d1 100644
--- a/media/extractors/mp4/MPEG4Extractor.h
+++ b/media/extractors/mp4/MPEG4Extractor.h
@@ -22,6 +22,7 @@
 
 #include <media/DataSourceBase.h>
 #include <media/MediaExtractor.h>
+#include <media/stagefright/MetaDataBase.h>
 #include <media/stagefright/foundation/AString.h>
 #include <utils/List.h>
 #include <utils/Vector.h>
@@ -56,10 +57,10 @@
     explicit MPEG4Extractor(DataSourceBase *source, const char *mime = NULL);
 
     virtual size_t countTracks();
-    virtual MediaSourceBase *getTrack(size_t index);
-    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
+    virtual MediaTrack *getTrack(size_t index);
+    virtual status_t getTrackMetaData(MetaDataBase& meta, size_t index, uint32_t flags);
 
-    virtual sp<MetaData> getMetaData();
+    virtual status_t getMetaData(MetaDataBase& meta);
     virtual uint32_t flags() const;
     virtual const char * name() { return "MPEG4Extractor"; }
 
@@ -75,7 +76,7 @@
     };
     struct Track {
         Track *next;
-        sp<MetaData> meta;
+        MetaDataBase meta;
         uint32_t timescale;
         sp<SampleTable> sampleTable;
         bool includes_expensive_metadata;
@@ -105,7 +106,7 @@
 
     Track *mFirstTrack, *mLastTrack;
 
-    sp<MetaData> mFileMetaData;
+    MetaDataBase mFileMetaData;
 
     Vector<uint32_t> mPath;
     String8 mLastCommentMean;
diff --git a/media/extractors/mpeg2/MPEG2PSExtractor.cpp b/media/extractors/mpeg2/MPEG2PSExtractor.cpp
index c2de6e7..6980b82 100644
--- a/media/extractors/mpeg2/MPEG2PSExtractor.cpp
+++ b/media/extractors/mpeg2/MPEG2PSExtractor.cpp
@@ -24,7 +24,7 @@
 #include "mpeg2ts/ESQueue.h"
 
 #include <media/DataSourceBase.h>
-#include <media/MediaSourceBase.h>
+#include <media/MediaTrack.h>
 #include <media/stagefright/foundation/ABitReader.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
@@ -40,13 +40,13 @@
 
 namespace android {
 
-struct MPEG2PSExtractor::Track : public MediaSourceBase, public RefBase {
+struct MPEG2PSExtractor::Track : public MediaTrack, public RefBase {
     Track(MPEG2PSExtractor *extractor,
           unsigned stream_id, unsigned stream_type);
 
-    virtual status_t start(MetaData *params);
+    virtual status_t start(MetaDataBase *params);
     virtual status_t stop();
-    virtual sp<MetaData> getFormat();
+    virtual status_t getFormat(MetaDataBase &);
 
     virtual status_t read(
             MediaBufferBase **buffer, const ReadOptions *options);
@@ -72,12 +72,12 @@
     DISALLOW_EVIL_CONSTRUCTORS(Track);
 };
 
-struct MPEG2PSExtractor::WrappedTrack : public MediaSourceBase {
+struct MPEG2PSExtractor::WrappedTrack : public MediaTrack {
     WrappedTrack(MPEG2PSExtractor *extractor, const sp<Track> &track);
 
-    virtual status_t start(MetaData *params);
+    virtual status_t start(MetaDataBase *params);
     virtual status_t stop();
-    virtual sp<MetaData> getFormat();
+    virtual status_t getFormat(MetaDataBase &);
 
     virtual status_t read(
             MediaBufferBase **buffer, const ReadOptions *options);
@@ -108,9 +108,10 @@
     }
 
     // Remove all tracks that were unable to determine their format.
+    MetaDataBase meta;
     for (size_t i = mTracks.size(); i > 0;) {
         i--;
-        if (mTracks.valueAt(i)->getFormat() == NULL) {
+        if (mTracks.valueAt(i)->getFormat(meta) != OK) {
             mTracks.removeItemsAt(i);
         }
     }
@@ -125,7 +126,7 @@
     return mTracks.size();
 }
 
-MediaSourceBase *MPEG2PSExtractor::getTrack(size_t index) {
+MediaTrack *MPEG2PSExtractor::getTrack(size_t index) {
     if (index >= mTracks.size()) {
         return NULL;
     }
@@ -133,20 +134,20 @@
     return new WrappedTrack(this, mTracks.valueAt(index));
 }
 
-sp<MetaData> MPEG2PSExtractor::getTrackMetaData(
+status_t MPEG2PSExtractor::getTrackMetaData(
+        MetaDataBase &meta,
         size_t index, uint32_t /* flags */) {
     if (index >= mTracks.size()) {
-        return NULL;
+        return UNKNOWN_ERROR;
     }
 
-    return mTracks.valueAt(index)->getFormat();
+    return mTracks.valueAt(index)->getFormat(meta);
 }
 
-sp<MetaData> MPEG2PSExtractor::getMetaData() {
-    sp<MetaData> meta = new MetaData;
-    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_CONTAINER_MPEG2PS);
+status_t MPEG2PSExtractor::getMetaData(MetaDataBase &meta) {
+    meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_CONTAINER_MPEG2PS);
 
-    return meta;
+    return OK;
 }
 
 uint32_t MPEG2PSExtractor::flags() const {
@@ -634,12 +635,12 @@
     mQueue = NULL;
 }
 
-status_t MPEG2PSExtractor::Track::start(MetaData *params) {
+status_t MPEG2PSExtractor::Track::start(MetaDataBase *) {
     if (mSource == NULL) {
         return NO_INIT;
     }
 
-    return mSource->start(params);
+    return mSource->start(NULL); // AnotherPacketSource::start doesn't use its argument
 }
 
 status_t MPEG2PSExtractor::Track::stop() {
@@ -650,12 +651,14 @@
     return mSource->stop();
 }
 
-sp<MetaData> MPEG2PSExtractor::Track::getFormat() {
+status_t MPEG2PSExtractor::Track::getFormat(MetaDataBase &meta) {
     if (mSource == NULL) {
-        return NULL;
+        return NO_INIT;
     }
 
-    return mSource->getFormat();
+    sp<MetaData> sourceMeta = mSource->getFormat();
+    meta = *sourceMeta;
+    return OK;
 }
 
 status_t MPEG2PSExtractor::Track::read(
@@ -731,7 +734,7 @@
 MPEG2PSExtractor::WrappedTrack::~WrappedTrack() {
 }
 
-status_t MPEG2PSExtractor::WrappedTrack::start(MetaData *params) {
+status_t MPEG2PSExtractor::WrappedTrack::start(MetaDataBase *params) {
     return mTrack->start(params);
 }
 
@@ -739,8 +742,8 @@
     return mTrack->stop();
 }
 
-sp<MetaData> MPEG2PSExtractor::WrappedTrack::getFormat() {
-    return mTrack->getFormat();
+status_t MPEG2PSExtractor::WrappedTrack::getFormat(MetaDataBase &meta) {
+    return mTrack->getFormat(meta);
 }
 
 status_t MPEG2PSExtractor::WrappedTrack::read(
diff --git a/media/extractors/mpeg2/MPEG2PSExtractor.h b/media/extractors/mpeg2/MPEG2PSExtractor.h
index 2541f4d..8b9dad9 100644
--- a/media/extractors/mpeg2/MPEG2PSExtractor.h
+++ b/media/extractors/mpeg2/MPEG2PSExtractor.h
@@ -20,6 +20,7 @@
 
 #include <media/stagefright/foundation/ABase.h>
 #include <media/MediaExtractor.h>
+#include <media/stagefright/MetaDataBase.h>
 #include <utils/threads.h>
 #include <utils/KeyedVector.h>
 
@@ -34,10 +35,10 @@
     explicit MPEG2PSExtractor(DataSourceBase *source);
 
     virtual size_t countTracks();
-    virtual MediaSourceBase *getTrack(size_t index);
-    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
+    virtual MediaTrack *getTrack(size_t index);
+    virtual status_t getTrackMetaData(MetaDataBase& meta, size_t index, uint32_t flags);
 
-    virtual sp<MetaData> getMetaData();
+    virtual status_t getMetaData(MetaDataBase& meta);
 
     virtual uint32_t flags() const;
     virtual const char * name() { return "MPEG2PSExtractor"; }
diff --git a/media/extractors/mpeg2/MPEG2TSExtractor.cpp b/media/extractors/mpeg2/MPEG2TSExtractor.cpp
index 7887a7c..c83f7ce 100644
--- a/media/extractors/mpeg2/MPEG2TSExtractor.cpp
+++ b/media/extractors/mpeg2/MPEG2TSExtractor.cpp
@@ -24,7 +24,7 @@
 
 #include <media/DataSourceBase.h>
 #include <media/IStreamSource.h>
-#include <media/MediaSourceBase.h>
+#include <media/MediaTrack.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooper.h>
@@ -49,16 +49,16 @@
 static const int kMaxDurationReadSize = 250000LL;
 static const int kMaxDurationRetry = 6;
 
-struct MPEG2TSSource : public MediaSourceBase {
+struct MPEG2TSSource : public MediaTrack {
     MPEG2TSSource(
             MPEG2TSExtractor *extractor,
             const sp<AnotherPacketSource> &impl,
             bool doesSeek);
     virtual ~MPEG2TSSource();
 
-    virtual status_t start(MetaData *params = NULL);
+    virtual status_t start(MetaDataBase *params = NULL);
     virtual status_t stop();
-    virtual sp<MetaData> getFormat();
+    virtual status_t getFormat(MetaDataBase &);
 
     virtual status_t read(
             MediaBufferBase **buffer, const ReadOptions *options = NULL);
@@ -86,16 +86,18 @@
 MPEG2TSSource::~MPEG2TSSource() {
 }
 
-status_t MPEG2TSSource::start(MetaData *params) {
-    return mImpl->start(params);
+status_t MPEG2TSSource::start(MetaDataBase *) {
+    return mImpl->start(NULL); // AnotherPacketSource::start() doesn't use its argument
 }
 
 status_t MPEG2TSSource::stop() {
     return mImpl->stop();
 }
 
-sp<MetaData> MPEG2TSSource::getFormat() {
-    return mImpl->getFormat();
+status_t MPEG2TSSource::getFormat(MetaDataBase &meta) {
+    sp<MetaData> implMeta = mImpl->getFormat();
+    meta = *implMeta;
+    return OK;
 }
 
 status_t MPEG2TSSource::read(
@@ -133,7 +135,7 @@
     return mSourceImpls.size();
 }
 
-MediaSourceBase *MPEG2TSExtractor::getTrack(size_t index) {
+MediaTrack *MPEG2TSExtractor::getTrack(size_t index) {
     if (index >= mSourceImpls.size()) {
         return NULL;
     }
@@ -144,23 +146,28 @@
             (mSeekSyncPoints == &mSyncPoints.editItemAt(index)));
 }
 
-sp<MetaData> MPEG2TSExtractor::getTrackMetaData(
+status_t MPEG2TSExtractor::getTrackMetaData(
+        MetaDataBase &meta,
         size_t index, uint32_t /* flags */) {
-    return index < mSourceImpls.size()
+    sp<MetaData> implMeta = index < mSourceImpls.size()
         ? mSourceImpls.editItemAt(index)->getFormat() : NULL;
+    if (implMeta == NULL) {
+        return UNKNOWN_ERROR;
+    }
+    meta = *implMeta;
+    return OK;
 }
 
-sp<MetaData> MPEG2TSExtractor::getMetaData() {
-    sp<MetaData> meta = new MetaData;
-    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_CONTAINER_MPEG2TS);
+status_t MPEG2TSExtractor::getMetaData(MetaDataBase &meta) {
+    meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_CONTAINER_MPEG2TS);
 
-    return meta;
+    return OK;
 }
 
 //static
-bool MPEG2TSExtractor::isScrambledFormat(const sp<MetaData> &format) {
+bool MPEG2TSExtractor::isScrambledFormat(MetaDataBase &format) {
     const char *mime;
-    return format->findCString(kKeyMIMEType, &mime)
+    return format.findCString(kKeyMIMEType, &mime)
             && (!strcasecmp(MEDIA_MIMETYPE_VIDEO_SCRAMBLED, mime)
                     || !strcasecmp(MEDIA_MIMETYPE_AUDIO_SCRAMBLED, mime));
 }
@@ -213,7 +220,7 @@
                 if (format != NULL) {
                     haveVideo = true;
                     addSource(impl);
-                    if (!isScrambledFormat(format)) {
+                    if (!isScrambledFormat(*(format.get()))) {
                         mSyncPoints.push();
                         mSeekSyncPoints = &mSyncPoints.editTop();
                     }
@@ -229,7 +236,7 @@
                 if (format != NULL) {
                     haveAudio = true;
                     addSource(impl);
-                    if (!isScrambledFormat(format)) {
+                    if (!isScrambledFormat(*(format.get()))) {
                         mSyncPoints.push();
                         if (!haveVideo) {
                             mSeekSyncPoints = &mSyncPoints.editTop();
@@ -470,7 +477,7 @@
 }
 
 status_t MPEG2TSExtractor::seek(int64_t seekTimeUs,
-        const MediaSourceBase::ReadOptions::SeekMode &seekMode) {
+        const MediaTrack::ReadOptions::SeekMode &seekMode) {
     if (mSeekSyncPoints == NULL || mSeekSyncPoints->isEmpty()) {
         ALOGW("No sync point to seek to.");
         // ... and therefore we have nothing useful to do here.
@@ -491,18 +498,18 @@
     }
 
     switch (seekMode) {
-        case MediaSourceBase::ReadOptions::SEEK_NEXT_SYNC:
+        case MediaTrack::ReadOptions::SEEK_NEXT_SYNC:
             if (index == mSeekSyncPoints->size()) {
                 ALOGW("Next sync not found; starting from the latest sync.");
                 --index;
             }
             break;
-        case MediaSourceBase::ReadOptions::SEEK_CLOSEST_SYNC:
-        case MediaSourceBase::ReadOptions::SEEK_CLOSEST:
+        case MediaTrack::ReadOptions::SEEK_CLOSEST_SYNC:
+        case MediaTrack::ReadOptions::SEEK_CLOSEST:
             ALOGW("seekMode not supported: %d; falling back to PREVIOUS_SYNC",
                     seekMode);
             // fall-through
-        case MediaSourceBase::ReadOptions::SEEK_PREVIOUS_SYNC:
+        case MediaTrack::ReadOptions::SEEK_PREVIOUS_SYNC:
             if (index == 0) {
                 ALOGW("Previous sync not found; starting from the earliest "
                         "sync.");
diff --git a/media/extractors/mpeg2/MPEG2TSExtractor.h b/media/extractors/mpeg2/MPEG2TSExtractor.h
index df07fac..cbdd3cb 100644
--- a/media/extractors/mpeg2/MPEG2TSExtractor.h
+++ b/media/extractors/mpeg2/MPEG2TSExtractor.h
@@ -1,4 +1,5 @@
 /*
+
  * Copyright (C) 2010 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -20,7 +21,8 @@
 
 #include <media/stagefright/foundation/ABase.h>
 #include <media/MediaExtractor.h>
-#include <media/MediaSourceBase.h>
+#include <media/MediaTrack.h>
+#include <media/stagefright/MetaDataBase.h>
 #include <utils/threads.h>
 #include <utils/KeyedVector.h>
 #include <utils/Vector.h>
@@ -40,10 +42,10 @@
     explicit MPEG2TSExtractor(DataSourceBase *source);
 
     virtual size_t countTracks();
-    virtual MediaSourceBase *getTrack(size_t index);
-    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
+    virtual MediaTrack *getTrack(size_t index);
+    virtual status_t getTrackMetaData(MetaDataBase &meta, size_t index, uint32_t flags);
 
-    virtual sp<MetaData> getMetaData();
+    virtual status_t getMetaData(MetaDataBase& meta);
 
     virtual status_t setMediaCas(const uint8_t* /*casToken*/, size_t /*size*/) override;
 
@@ -72,7 +74,7 @@
 
     off64_t mOffset;
 
-    static bool isScrambledFormat(const sp<MetaData> &format);
+    static bool isScrambledFormat(MetaDataBase &format);
 
     void init();
     void addSource(const sp<AnotherPacketSource> &impl);
diff --git a/media/extractors/ogg/OggExtractor.cpp b/media/extractors/ogg/OggExtractor.cpp
index 6d7576f..4d49013 100644
--- a/media/extractors/ogg/OggExtractor.cpp
+++ b/media/extractors/ogg/OggExtractor.cpp
@@ -22,7 +22,8 @@
 
 #include <cutils/properties.h>
 #include <media/DataSourceBase.h>
-#include <media/MediaSourceBase.h>
+#include <media/MediaTrack.h>
+#include <media/VorbisComment.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/base64.h>
@@ -31,7 +32,7 @@
 #include <media/stagefright/MediaBufferGroup.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
-#include <media/stagefright/MetaData.h>
+#include <media/stagefright/MetaDataBase.h>
 #include <utils/String8.h>
 
 extern "C" {
@@ -45,12 +46,12 @@
 
 namespace android {
 
-struct OggSource : public MediaSourceBase {
+struct OggSource : public MediaTrack {
     explicit OggSource(OggExtractor *extractor);
 
-    virtual sp<MetaData> getFormat();
+    virtual status_t getFormat(MetaDataBase &);
 
-    virtual status_t start(MetaData *params = NULL);
+    virtual status_t start(MetaDataBase *params = NULL);
     virtual status_t stop();
 
     virtual status_t read(
@@ -75,7 +76,7 @@
             int64_t seekPreRollUs);
     virtual ~MyOggExtractor();
 
-    sp<MetaData> getFormat() const;
+    status_t getFormat(MetaDataBase &) const;
 
     // Returns an approximate bitrate in bits per second.
     virtual uint64_t approxBitrate() const = 0;
@@ -86,7 +87,10 @@
 
     status_t init();
 
-    sp<MetaData> getFileMetaData() { return mFileMeta; }
+    status_t getFileMetaData(MetaDataBase &meta) {
+        meta = mFileMeta;
+        return OK;
+    }
 
 protected:
     struct Page {
@@ -124,8 +128,8 @@
     vorbis_info mVi;
     vorbis_comment mVc;
 
-    sp<MetaData> mMeta;
-    sp<MetaData> mFileMeta;
+    MetaDataBase mMeta;
+    MetaDataBase mFileMeta;
 
     Vector<TOCEntry> mTableOfContents;
 
@@ -219,9 +223,6 @@
     int64_t mStartGranulePosition;
 };
 
-static void extractAlbumArt(
-        const sp<MetaData> &fileMeta, const void *data, size_t size);
-
 ////////////////////////////////////////////////////////////////////////////////
 
 OggSource::OggSource(OggExtractor *extractor)
@@ -235,11 +236,11 @@
     }
 }
 
-sp<MetaData> OggSource::getFormat() {
-    return mExtractor->mImpl->getFormat();
+status_t OggSource::getFormat(MetaDataBase &meta) {
+    return mExtractor->mImpl->getFormat(meta);
 }
 
-status_t OggSource::start(MetaData * /* params */) {
+status_t OggSource::start(MetaDataBase * /* params */) {
     if (mStarted) {
         return INVALID_OPERATION;
     }
@@ -277,14 +278,14 @@
 
 #if 0
     int64_t timeUs;
-    if (packet->meta_data()->findInt64(kKeyTime, &timeUs)) {
+    if (packet->meta_data().findInt64(kKeyTime, &timeUs)) {
         ALOGI("found time = %lld us", timeUs);
     } else {
         ALOGI("NO time");
     }
 #endif
 
-    packet->meta_data()->setInt32(kKeyIsSyncFrame, 1);
+    packet->meta_data().setInt32(kKeyIsSyncFrame, 1);
 
     *out = packet;
 
@@ -321,8 +322,9 @@
     vorbis_info_clear(&mVi);
 }
 
-sp<MetaData> MyOggExtractor::getFormat() const {
-    return mMeta;
+status_t MyOggExtractor::getFormat(MetaDataBase &meta) const {
+    meta = mMeta;
+    return OK;
 }
 
 status_t MyOggExtractor::findNextPage(
@@ -606,17 +608,17 @@
     int32_t currentPageSamples;
     // Calculate timestamps by accumulating durations starting from the first sample of a page;
     // We assume that we only seek to page boundaries.
-    if ((*out)->meta_data()->findInt32(kKeyValidSamples, &currentPageSamples)) {
+    if ((*out)->meta_data().findInt32(kKeyValidSamples, &currentPageSamples)) {
         // first packet in page
         if (mOffset == mFirstDataOffset) {
             currentPageSamples -= mStartGranulePosition;
-            (*out)->meta_data()->setInt32(kKeyValidSamples, currentPageSamples);
+            (*out)->meta_data().setInt32(kKeyValidSamples, currentPageSamples);
         }
         mCurGranulePosition = mCurrentPage.mGranulePosition - currentPageSamples;
     }
 
     int64_t timeUs = getTimeUsOfGranule(mCurGranulePosition);
-    (*out)->meta_data()->setInt64(kKeyTime, timeUs);
+    (*out)->meta_data().setInt64(kKeyTime, timeUs);
 
     uint32_t frames = getNumSamplesInPacket(*out);
     mCurGranulePosition += frames;
@@ -745,7 +747,7 @@
                 // We've just read the entire packet.
 
                 if (mFirstPacketInPage) {
-                    buffer->meta_data()->setInt32(
+                    buffer->meta_data().setInt32(
                             kKeyValidSamples, mCurrentPageSamples);
                     mFirstPacketInPage = false;
                 }
@@ -767,7 +769,7 @@
                         mCurrentPage.mPrevPacketPos += actualBlockSize / 2;
                         mCurrentPage.mPrevPacketSize = curBlockSize;
                     }
-                    buffer->meta_data()->setInt64(kKeyTime, timeUs);
+                    buffer->meta_data().setInt64(kKeyTime, timeUs);
                 }
                 *out = buffer;
 
@@ -813,10 +815,10 @@
                 // is already complete.
 
                 if (timeUs >= 0) {
-                    buffer->meta_data()->setInt64(kKeyTime, timeUs);
+                    buffer->meta_data().setInt64(kKeyTime, timeUs);
                 }
 
-                buffer->meta_data()->setInt32(
+                buffer->meta_data().setInt32(
                         kKeyValidSamples, mCurrentPageSamples);
                 mFirstPacketInPage = false;
 
@@ -829,8 +831,7 @@
 }
 
 status_t MyOggExtractor::init() {
-    mMeta = new MetaData;
-    mMeta->setCString(kKeyMIMEType, mMimeType);
+    mMeta.setCString(kKeyMIMEType, mMimeType);
 
     status_t err;
     MediaBufferBase *packet;
@@ -863,7 +864,7 @@
 
         int64_t durationUs = getTimeUsOfGranule(lastGranulePosition);
 
-        mMeta->setInt64(kKeyDuration, durationUs);
+        mMeta.setInt64(kKeyDuration, durationUs);
 
         buildTableOfContents();
     }
@@ -979,25 +980,35 @@
     mChannelCount = data[9];
     mCodecDelay = U16LE_AT(&data[10]);
 
-    mMeta->setData(kKeyOpusHeader, 0, data, size);
-    mMeta->setInt32(kKeySampleRate, kOpusSampleRate);
-    mMeta->setInt32(kKeyChannelCount, mChannelCount);
-    mMeta->setInt64(kKeyOpusSeekPreRoll /* ns */, kOpusSeekPreRollUs * 1000 /* = 80 ms*/);
-    mMeta->setInt64(kKeyOpusCodecDelay /* ns */,
+    mMeta.setData(kKeyOpusHeader, 0, data, size);
+    mMeta.setInt32(kKeySampleRate, kOpusSampleRate);
+    mMeta.setInt32(kKeyChannelCount, mChannelCount);
+    mMeta.setInt64(kKeyOpusSeekPreRoll /* ns */, kOpusSeekPreRollUs * 1000 /* = 80 ms*/);
+    mMeta.setInt64(kKeyOpusCodecDelay /* ns */,
             mCodecDelay /* sample/s */ * 1000000000ll / kOpusSampleRate);
 
     return OK;
 }
 
+struct TmpData {
+    uint8_t *data;
+    TmpData(size_t size) {
+        data = (uint8_t*) malloc(size);
+    }
+    ~TmpData() {
+        free(data);
+    }
+};
+
 status_t MyOpusExtractor::verifyOpusComments(MediaBufferBase *buffer) {
     // add artificial framing bit so we can reuse _vorbis_unpack_comment
     int32_t commentSize = buffer->range_length() + 1;
-    sp<ABuffer> aBuf = new ABuffer(commentSize);
-    if (aBuf->capacity() <= buffer->range_length()) {
+    TmpData commentDataHolder(commentSize);
+    uint8_t *commentData = commentDataHolder.data;
+    if (commentData == nullptr) {
         return ERROR_MALFORMED;
     }
 
-    uint8_t* commentData = aBuf->data();
     memcpy(commentData,
             (uint8_t *)buffer->data() + buffer->range_offset(),
             buffer->range_length());
@@ -1120,10 +1131,10 @@
                 return ERROR_MALFORMED;
             }
 
-            mMeta->setData(kKeyVorbisInfo, 0, data, size);
-            mMeta->setInt32(kKeySampleRate, mVi.rate);
-            mMeta->setInt32(kKeyChannelCount, mVi.channels);
-            mMeta->setInt32(kKeyBitRate, mVi.bitrate_nominal);
+            mMeta.setData(kKeyVorbisInfo, 0, data, size);
+            mMeta.setInt32(kKeySampleRate, mVi.rate);
+            mMeta.setInt32(kKeyChannelCount, mVi.channels);
+            mMeta.setInt32(kKeyBitRate, mVi.bitrate_nominal);
 
             ALOGV("lower-bitrate = %ld", mVi.bitrate_lower);
             ALOGV("upper-bitrate = %ld", mVi.bitrate_upper);
@@ -1138,7 +1149,7 @@
             if (mSource->getSize(&size) == OK) {
                 uint64_t bps = approxBitrate();
                 if (bps != 0) {
-                    mMeta->setInt64(kKeyDuration, size * 8000000ll / bps);
+                    mMeta.setInt64(kKeyDuration, size * 8000000ll / bps);
                 }
             }
             break;
@@ -1160,7 +1171,7 @@
                 return ERROR_MALFORMED;
             }
 
-            mMeta->setData(kKeyVorbisBooks, 0, data, size);
+            mMeta.setData(kKeyVorbisBooks, 0, data, size);
             break;
         }
     }
@@ -1176,138 +1187,14 @@
     return (mVi.bitrate_lower + mVi.bitrate_upper) / 2;
 }
 
-// also exists in FLACExtractor, candidate for moving to utility/support library?
-static void parseVorbisComment(
-        const sp<MetaData> &fileMeta, const char *comment, size_t commentLength)
-{
-    struct {
-        const char *const mTag;
-        uint32_t mKey;
-    } kMap[] = {
-        { "TITLE", kKeyTitle },
-        { "ARTIST", kKeyArtist },
-        { "ALBUMARTIST", kKeyAlbumArtist },
-        { "ALBUM ARTIST", kKeyAlbumArtist },
-        { "COMPILATION", kKeyCompilation },
-        { "ALBUM", kKeyAlbum },
-        { "COMPOSER", kKeyComposer },
-        { "GENRE", kKeyGenre },
-        { "AUTHOR", kKeyAuthor },
-        { "TRACKNUMBER", kKeyCDTrackNumber },
-        { "DISCNUMBER", kKeyDiscNumber },
-        { "DATE", kKeyDate },
-        { "YEAR", kKeyYear },
-        { "LYRICIST", kKeyWriter },
-        { "METADATA_BLOCK_PICTURE", kKeyAlbumArt },
-        { "ANDROID_LOOP", kKeyAutoLoop },
-    };
-
-        for (size_t j = 0; j < sizeof(kMap) / sizeof(kMap[0]); ++j) {
-            size_t tagLen = strlen(kMap[j].mTag);
-            if (!strncasecmp(kMap[j].mTag, comment, tagLen)
-                    && comment[tagLen] == '=') {
-                if (kMap[j].mKey == kKeyAlbumArt) {
-                    extractAlbumArt(
-                            fileMeta,
-                            &comment[tagLen + 1],
-                            commentLength - tagLen - 1);
-                } else if (kMap[j].mKey == kKeyAutoLoop) {
-                    if (!strcasecmp(&comment[tagLen + 1], "true")) {
-                        fileMeta->setInt32(kKeyAutoLoop, true);
-                    }
-                } else {
-                    fileMeta->setCString(kMap[j].mKey, &comment[tagLen + 1]);
-                }
-            }
-        }
-
-}
-
-// also exists in FLACExtractor, candidate for moving to utility/support library?
-static void extractAlbumArt(
-        const sp<MetaData> &fileMeta, const void *data, size_t size) {
-    ALOGV("extractAlbumArt from '%s'", (const char *)data);
-
-    sp<ABuffer> flacBuffer = decodeBase64(AString((const char *)data, size));
-    if (flacBuffer == NULL) {
-        ALOGE("malformed base64 encoded data.");
-        return;
-    }
-
-    size_t flacSize = flacBuffer->size();
-    uint8_t *flac = flacBuffer->data();
-    ALOGV("got flac of size %zu", flacSize);
-
-    uint32_t picType;
-    uint32_t typeLen;
-    uint32_t descLen;
-    uint32_t dataLen;
-    char type[128];
-
-    if (flacSize < 8) {
-        return;
-    }
-
-    picType = U32_AT(flac);
-
-    if (picType != 3) {
-        // This is not a front cover.
-        return;
-    }
-
-    typeLen = U32_AT(&flac[4]);
-    if (typeLen > sizeof(type) - 1) {
-        return;
-    }
-
-    // we've already checked above that flacSize >= 8
-    if (flacSize - 8 < typeLen) {
-        return;
-    }
-
-    memcpy(type, &flac[8], typeLen);
-    type[typeLen] = '\0';
-
-    ALOGV("picType = %d, type = '%s'", picType, type);
-
-    if (!strcmp(type, "-->")) {
-        // This is not inline cover art, but an external url instead.
-        return;
-    }
-
-    if (flacSize < 32 || flacSize - 32 < typeLen) {
-        return;
-    }
-
-    descLen = U32_AT(&flac[8 + typeLen]);
-    if (flacSize - 32 - typeLen < descLen) {
-        return;
-    }
-
-    dataLen = U32_AT(&flac[8 + typeLen + 4 + descLen + 16]);
-
-    // we've already checked above that (flacSize - 32 - typeLen - descLen) >= 0
-    if (flacSize - 32 - typeLen - descLen < dataLen) {
-        return;
-    }
-
-    ALOGV("got image data, %zu trailing bytes",
-         flacSize - 32 - typeLen - descLen - dataLen);
-
-    fileMeta->setData(
-            kKeyAlbumArt, 0, &flac[8 + typeLen + 4 + descLen + 20], dataLen);
-
-    fileMeta->setCString(kKeyAlbumArtMIME, type);
-}
 
 void MyOggExtractor::parseFileMetaData() {
-    mFileMeta = new MetaData;
-    mFileMeta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_CONTAINER_OGG);
+    mFileMeta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_CONTAINER_OGG);
 
     for (int i = 0; i < mVc.comments; ++i) {
         const char *comment = mVc.user_comments[i];
         size_t commentLength = mVc.comment_lengths[i];
-        parseVorbisComment(mFileMeta, comment, commentLength);
+        parseVorbisComment(&mFileMeta, comment, commentLength);
         //ALOGI("comment #%d: '%s'", i + 1, mVc.user_comments[i]);
     }
 }
@@ -1348,7 +1235,7 @@
     return mInitCheck != OK ? 0 : 1;
 }
 
-MediaSourceBase *OggExtractor::getTrack(size_t index) {
+MediaTrack *OggExtractor::getTrack(size_t index) {
     if (index >= 1) {
         return NULL;
     }
@@ -1356,17 +1243,18 @@
     return new OggSource(this);
 }
 
-sp<MetaData> OggExtractor::getTrackMetaData(
+status_t OggExtractor::getTrackMetaData(
+        MetaDataBase &meta,
         size_t index, uint32_t /* flags */) {
     if (index >= 1) {
-        return NULL;
+        return UNKNOWN_ERROR;
     }
 
-    return mImpl->getFormat();
+    return mImpl->getFormat(meta);
 }
 
-sp<MetaData> OggExtractor::getMetaData() {
-    return mImpl->getFileMetaData();
+status_t OggExtractor::getMetaData(MetaDataBase &meta) {
+    return mImpl->getFileMetaData(meta);
 }
 
 static MediaExtractor* CreateExtractor(
diff --git a/media/extractors/ogg/OggExtractor.h b/media/extractors/ogg/OggExtractor.h
index c9c37eb..9fe2944 100644
--- a/media/extractors/ogg/OggExtractor.h
+++ b/media/extractors/ogg/OggExtractor.h
@@ -34,10 +34,10 @@
     explicit OggExtractor(DataSourceBase *source);
 
     virtual size_t countTracks();
-    virtual MediaSourceBase *getTrack(size_t index);
-    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
+    virtual MediaTrack *getTrack(size_t index);
+    virtual status_t getTrackMetaData(MetaDataBase& meta, size_t index, uint32_t flags);
 
-    virtual sp<MetaData> getMetaData();
+    virtual status_t getMetaData(MetaDataBase& meta);
     virtual const char * name() { return "OggExtractor"; }
 
 protected:
@@ -55,10 +55,6 @@
     OggExtractor &operator=(const OggExtractor &);
 };
 
-bool SniffOgg(
-        DataSourceBase *source, String8 *mimeType, float *confidence,
-        sp<AMessage> *);
-
 }  // namespace android
 
 #endif  // OGG_EXTRACTOR_H_
diff --git a/media/extractors/wav/Android.bp b/media/extractors/wav/Android.bp
index 65c71ef..17836bb 100644
--- a/media/extractors/wav/Android.bp
+++ b/media/extractors/wav/Android.bp
@@ -10,7 +10,6 @@
         "liblog",
         "libmediaextractor",
         "libstagefright_foundation",
-        "libutils",
     ],
 
     static_libs: [
diff --git a/media/extractors/wav/WAVExtractor.cpp b/media/extractors/wav/WAVExtractor.cpp
index a18cee5..f5a1b01 100644
--- a/media/extractors/wav/WAVExtractor.cpp
+++ b/media/extractors/wav/WAVExtractor.cpp
@@ -22,7 +22,7 @@
 
 #include <audio_utils/primitives.h>
 #include <media/DataSourceBase.h>
-#include <media/MediaSourceBase.h>
+#include <media/MediaTrack.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/MediaBufferGroup.h>
 #include <media/stagefright/MediaDefs.h>
@@ -55,17 +55,17 @@
     return ptr[1] << 8 | ptr[0];
 }
 
-struct WAVSource : public MediaSourceBase {
+struct WAVSource : public MediaTrack {
     WAVSource(
             DataSourceBase *dataSource,
-            const sp<MetaData> &meta,
+            MetaDataBase &meta,
             uint16_t waveFormat,
             int32_t bitsPerSample,
             off64_t offset, size_t size);
 
-    virtual status_t start(MetaData *params = NULL);
+    virtual status_t start(MetaDataBase *params = NULL);
     virtual status_t stop();
-    virtual sp<MetaData> getFormat();
+    virtual status_t getFormat(MetaDataBase &meta);
 
     virtual status_t read(
             MediaBufferBase **buffer, const ReadOptions *options = NULL);
@@ -79,7 +79,7 @@
     static const size_t kMaxFrameSize;
 
     DataSourceBase *mDataSource;
-    sp<MetaData> mMeta;
+    MetaDataBase &mMeta;
     uint16_t mWaveFormat;
     int32_t mSampleRate;
     int32_t mNumChannels;
@@ -104,23 +104,20 @@
 WAVExtractor::~WAVExtractor() {
 }
 
-sp<MetaData> WAVExtractor::getMetaData() {
-    sp<MetaData> meta = new MetaData;
-
-    if (mInitCheck != OK) {
-        return meta;
+status_t WAVExtractor::getMetaData(MetaDataBase &meta) {
+    meta.clear();
+    if (mInitCheck == OK) {
+        meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_CONTAINER_WAV);
     }
 
-    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_CONTAINER_WAV);
-
-    return meta;
+    return OK;
 }
 
 size_t WAVExtractor::countTracks() {
     return mInitCheck == OK ? 1 : 0;
 }
 
-MediaSourceBase *WAVExtractor::getTrack(size_t index) {
+MediaTrack *WAVExtractor::getTrack(size_t index) {
     if (mInitCheck != OK || index > 0) {
         return NULL;
     }
@@ -130,13 +127,15 @@
             mWaveFormat, mBitsPerSample, mDataOffset, mDataSize);
 }
 
-sp<MetaData> WAVExtractor::getTrackMetaData(
+status_t WAVExtractor::getTrackMetaData(
+        MetaDataBase &meta,
         size_t index, uint32_t /* flags */) {
     if (mInitCheck != OK || index > 0) {
-        return NULL;
+        return UNKNOWN_ERROR;
     }
 
-    return mTrackMeta;
+    meta = mTrackMeta;
+    return OK;
 }
 
 status_t WAVExtractor::init() {
@@ -285,33 +284,33 @@
                 mDataOffset = offset;
                 mDataSize = chunkSize;
 
-                mTrackMeta = new MetaData;
+                mTrackMeta.clear();
 
                 switch (mWaveFormat) {
                     case WAVE_FORMAT_PCM:
                     case WAVE_FORMAT_IEEE_FLOAT:
-                        mTrackMeta->setCString(
+                        mTrackMeta.setCString(
                                 kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RAW);
                         break;
                     case WAVE_FORMAT_ALAW:
-                        mTrackMeta->setCString(
+                        mTrackMeta.setCString(
                                 kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_G711_ALAW);
                         break;
                     case WAVE_FORMAT_MSGSM:
-                        mTrackMeta->setCString(
+                        mTrackMeta.setCString(
                                 kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MSGSM);
                         break;
                     default:
                         CHECK_EQ(mWaveFormat, (uint16_t)WAVE_FORMAT_MULAW);
-                        mTrackMeta->setCString(
+                        mTrackMeta.setCString(
                                 kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_G711_MLAW);
                         break;
                 }
 
-                mTrackMeta->setInt32(kKeyChannelCount, mNumChannels);
-                mTrackMeta->setInt32(kKeyChannelMask, mChannelMask);
-                mTrackMeta->setInt32(kKeySampleRate, mSampleRate);
-                mTrackMeta->setInt32(kKeyPcmEncoding, kAudioEncodingPcm16bit);
+                mTrackMeta.setInt32(kKeyChannelCount, mNumChannels);
+                mTrackMeta.setInt32(kKeyChannelMask, mChannelMask);
+                mTrackMeta.setInt32(kKeySampleRate, mSampleRate);
+                mTrackMeta.setInt32(kKeyPcmEncoding, kAudioEncodingPcm16bit);
 
                 int64_t durationUs = 0;
                 if (mWaveFormat == WAVE_FORMAT_MSGSM) {
@@ -333,7 +332,7 @@
                         1000000LL * num_samples / mSampleRate;
                 }
 
-                mTrackMeta->setInt64(kKeyDuration, durationUs);
+                mTrackMeta.setInt64(kKeyDuration, durationUs);
 
                 return OK;
             }
@@ -349,7 +348,7 @@
 
 WAVSource::WAVSource(
         DataSourceBase *dataSource,
-        const sp<MetaData> &meta,
+        MetaDataBase &meta,
         uint16_t waveFormat,
         int32_t bitsPerSample,
         off64_t offset, size_t size)
@@ -363,10 +362,10 @@
       mSize(size),
       mStarted(false),
       mGroup(NULL) {
-    CHECK(mMeta->findInt32(kKeySampleRate, &mSampleRate));
-    CHECK(mMeta->findInt32(kKeyChannelCount, &mNumChannels));
+    CHECK(mMeta.findInt32(kKeySampleRate, &mSampleRate));
+    CHECK(mMeta.findInt32(kKeyChannelCount, &mNumChannels));
 
-    mMeta->setInt32(kKeyMaxInputSize, kMaxFrameSize);
+    mMeta.setInt32(kKeyMaxInputSize, kMaxFrameSize);
 }
 
 WAVSource::~WAVSource() {
@@ -375,7 +374,7 @@
     }
 }
 
-status_t WAVSource::start(MetaData * /* params */) {
+status_t WAVSource::start(MetaDataBase * /* params */) {
     ALOGV("WAVSource::start");
 
     CHECK(!mStarted);
@@ -408,10 +407,11 @@
     return OK;
 }
 
-sp<MetaData> WAVSource::getFormat() {
+status_t WAVSource::getFormat(MetaDataBase &meta) {
     ALOGV("WAVSource::getFormat");
 
-    return mMeta;
+    meta = mMeta;
+    return OK;
 }
 
 status_t WAVSource::read(
@@ -532,9 +532,9 @@
                 / (mNumChannels * bytesPerSample) / mSampleRate;
     }
 
-    buffer->meta_data()->setInt64(kKeyTime, timeStampUs);
+    buffer->meta_data().setInt64(kKeyTime, timeStampUs);
 
-    buffer->meta_data()->setInt32(kKeyIsSyncFrame, 1);
+    buffer->meta_data().setInt32(kKeyIsSyncFrame, 1);
     mCurrentPos += n;
 
     *out = buffer;
diff --git a/media/extractors/wav/WAVExtractor.h b/media/extractors/wav/WAVExtractor.h
index 67661ed..467d0b7 100644
--- a/media/extractors/wav/WAVExtractor.h
+++ b/media/extractors/wav/WAVExtractor.h
@@ -20,6 +20,7 @@
 
 #include <utils/Errors.h>
 #include <media/MediaExtractor.h>
+#include <media/stagefright/MetaDataBase.h>
 
 namespace android {
 
@@ -32,10 +33,10 @@
     explicit WAVExtractor(DataSourceBase *source);
 
     virtual size_t countTracks();
-    virtual MediaSourceBase *getTrack(size_t index);
-    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
+    virtual MediaTrack *getTrack(size_t index);
+    virtual status_t getTrackMetaData(MetaDataBase& meta, size_t index, uint32_t flags);
 
-    virtual sp<MetaData> getMetaData();
+    virtual status_t getMetaData(MetaDataBase& meta);
     virtual const char * name() { return "WAVExtractor"; }
 
     virtual ~WAVExtractor();
@@ -51,7 +52,7 @@
     uint16_t mBitsPerSample;
     off64_t mDataOffset;
     size_t mDataSize;
-    sp<MetaData> mTrackMeta;
+    MetaDataBase mTrackMeta;
 
     status_t init();
 
diff --git a/media/libaaudio/tests/Android.bp b/media/libaaudio/tests/Android.bp
index 45d417f..beec9e2 100644
--- a/media/libaaudio/tests/Android.bp
+++ b/media/libaaudio/tests/Android.bp
@@ -148,3 +148,15 @@
         "libutils",
     ],
 }
+
+cc_test {
+    name: "test_interference",
+    defaults: ["libaaudio_tests_defaults"],
+    srcs: ["test_interference.cpp"],
+    shared_libs: [
+        "libaaudio",
+        "libbinder",
+        "libcutils",
+        "libutils",
+    ],
+}
diff --git a/media/libaaudio/tests/test_interference.cpp b/media/libaaudio/tests/test_interference.cpp
new file mode 100644
index 0000000..7eaf225
--- /dev/null
+++ b/media/libaaudio/tests/test_interference.cpp
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Play a shared stream that might use MMAP.
+// Then play a second stream at a different sample rate.
+// Make sure the first stream is still running.
+// See: b/73369112 | AAudio disconnects shared stream if second MMAP open fails
+
+#include <memory.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <android-base/macros.h>
+#include <aaudio/AAudio.h>
+
+#include <gtest/gtest.h>
+
+// Callback function that fills the audio output buffer.
+aaudio_data_callback_result_t MyDataCallbackProc(
+        AAudioStream *stream,
+        void *userData,
+        void *audioData,
+        int32_t numFrames) {
+    (void) userData;
+    int32_t numSamples = AAudioStream_getChannelCount(stream) * numFrames;
+    aaudio_format_t format = AAudioStream_getFormat(stream);
+    if (format == AAUDIO_FORMAT_PCM_I16) {
+        memset(audioData, 0, numSamples * sizeof(int16_t));
+    } else if (format == AAUDIO_FORMAT_PCM_FLOAT) {
+        memset(audioData, 0, numSamples * sizeof(float));
+    }
+    return AAUDIO_CALLBACK_RESULT_CONTINUE;
+}
+
+//void foo() { // for tricking the Android Studio formatter
+TEST(test_interference, aaudio_mmap_interference) {
+
+    AAudioStreamBuilder *aaudioBuilder = nullptr;
+    AAudioStream *aaudioStream1 = nullptr;
+    AAudioStream *aaudioStream2 = nullptr;
+
+    // Use an AAudioStreamBuilder to contain requested parameters.
+    ASSERT_EQ(AAUDIO_OK, AAudio_createStreamBuilder(&aaudioBuilder));
+
+    // Request stream properties.
+    AAudioStreamBuilder_setSampleRate(aaudioBuilder, 48000);
+    AAudioStreamBuilder_setDataCallback(aaudioBuilder, MyDataCallbackProc, nullptr);
+    AAudioStreamBuilder_setPerformanceMode(aaudioBuilder, AAUDIO_PERFORMANCE_MODE_LOW_LATENCY);
+
+    // Create an AAudioStream using the Builder.
+    ASSERT_EQ(AAUDIO_OK, AAudioStreamBuilder_openStream(aaudioBuilder, &aaudioStream1));
+    // Start it running.
+    ASSERT_EQ(AAUDIO_OK, AAudioStream_requestStart(aaudioStream1));
+
+    // Verify that the stream is running.
+    sleep(1);
+    EXPECT_LT(0, AAudioStream_getFramesRead(aaudioStream1));
+    ASSERT_EQ(AAUDIO_STREAM_STATE_STARTED, AAudioStream_getState(aaudioStream1));
+
+    // Now try to open a second stream with a different rate.
+    AAudioStreamBuilder_setSampleRate(aaudioBuilder, 44100);
+    ASSERT_EQ(AAUDIO_OK, AAudioStreamBuilder_openStream(aaudioBuilder, &aaudioStream2));
+    ASSERT_EQ(AAUDIO_OK, AAudioStream_requestStart(aaudioStream2));
+
+    // Verify that the second stream is running.
+    sleep(1);
+    EXPECT_LT(0, AAudioStream_getFramesRead(aaudioStream2));
+
+    EXPECT_EQ(AAUDIO_STREAM_STATE_STARTED, AAudioStream_getState(aaudioStream2));
+
+    // Now verify that the first stream is still running.
+    EXPECT_EQ(AAUDIO_STREAM_STATE_STARTED, AAudioStream_getState(aaudioStream1));
+
+    int32_t framesRead1_1 = AAudioStream_getFramesRead(aaudioStream1);
+    EXPECT_LT(0, framesRead1_1);
+    sleep(1);
+    int32_t framesRead1_2 = AAudioStream_getFramesRead(aaudioStream1);
+    EXPECT_LT(0, framesRead1_2);
+    EXPECT_LT(framesRead1_1, framesRead1_2); // advancing?
+
+    AAudioStream_close(aaudioStream2);
+    AAudioStream_close(aaudioStream1);
+    AAudioStreamBuilder_delete(aaudioBuilder);
+}
diff --git a/media/libmedia/IMediaSource.cpp b/media/libmedia/IMediaSource.cpp
index f6b9255..f185fd4 100644
--- a/media/libmedia/IMediaSource.cpp
+++ b/media/libmedia/IMediaSource.cpp
@@ -171,13 +171,13 @@
                 size_t length = reply.readInt32();
                 buf = new RemoteMediaBufferWrapper(mem);
                 buf->set_range(offset, length);
-                buf->meta_data()->updateFromParcel(reply);
+                buf->meta_data().updateFromParcel(reply);
             } else { // INLINE_BUFFER
                 int32_t len = reply.readInt32();
                 ALOGV("INLINE_BUFFER status %d and len %d", ret, len);
                 buf = new MediaBuffer(len);
                 reply.read(buf->data(), len);
-                buf->meta_data()->updateFromParcel(reply);
+                buf->meta_data().updateFromParcel(reply);
             }
             buffers->push_back(buf);
             ++bufferCount;
@@ -408,7 +408,7 @@
                     }
                     reply->writeInt32(offset);
                     reply->writeInt32(length);
-                    buf->meta_data()->writeToParcel(*reply);
+                    buf->meta_data().writeToParcel(*reply);
                     transferBuf->addRemoteRefcount(1);
                     if (transferBuf != buf) {
                         transferBuf->release(); // release local ref
@@ -421,7 +421,7 @@
                             buf, buf->mMemory->size(), length);
                     reply->writeInt32(INLINE_BUFFER);
                     reply->writeByteArray(length, (uint8_t*)buf->data() + offset);
-                    buf->meta_data()->writeToParcel(*reply);
+                    buf->meta_data().writeToParcel(*reply);
                     inlineTransferSize += length;
                     if (inlineTransferSize > kInlineMaxTransfer) {
                         maxNumBuffers = 0; // stop readMultiple if inline transfer is too large.
diff --git a/media/libmedia/JetPlayer.cpp b/media/libmedia/JetPlayer.cpp
index 34deb59..0d3c1ba 100644
--- a/media/libmedia/JetPlayer.cpp
+++ b/media/libmedia/JetPlayer.cpp
@@ -36,6 +36,7 @@
         mPaused(false),
         mMaxTracks(maxTracks),
         mEasData(NULL),
+        mIoWrapper(NULL),
         mTrackBufferSize(trackBufferSize)
 {
     ALOGV("JetPlayer constructor");
@@ -50,7 +51,6 @@
 {
     ALOGV("~JetPlayer");
     release();
-
 }
 
 //-------------------------------------------------------------------------------------------------
@@ -138,7 +138,8 @@
         JET_Shutdown(mEasData);
         EAS_Shutdown(mEasData);
     }
-    mIoWrapper.clear();
+    delete mIoWrapper;
+    mIoWrapper = NULL;
     if (mAudioTrack != 0) {
         mAudioTrack->stop();
         mAudioTrack->flush();
@@ -329,6 +330,7 @@
 
     Mutex::Autolock lock(mMutex);
 
+    delete mIoWrapper;
     mIoWrapper = new MidiIoWrapper(path);
 
     EAS_RESULT result = JET_OpenFile(mEasData, mIoWrapper->getLocator());
@@ -347,6 +349,7 @@
 
     Mutex::Autolock lock(mMutex);
 
+    delete mIoWrapper;
     mIoWrapper = new MidiIoWrapper(fd, offset, length);
 
     EAS_RESULT result = JET_OpenFile(mEasData, mIoWrapper->getLocator());
diff --git a/media/libmedia/MediaCodecInfo.cpp b/media/libmedia/MediaCodecInfo.cpp
index a570ffe..5308e1c 100644
--- a/media/libmedia/MediaCodecInfo.cpp
+++ b/media/libmedia/MediaCodecInfo.cpp
@@ -141,6 +141,10 @@
     return mIsEncoder;
 }
 
+uint32_t MediaCodecInfo::rank() const {
+    return mRank;
+}
+
 void MediaCodecInfo::getSupportedMimes(Vector<AString> *mimes) const {
     mimes->clear();
     for (size_t ix = 0; ix < mCaps.size(); ix++) {
@@ -170,10 +174,12 @@
     AString name = AString::FromParcel(parcel);
     AString owner = AString::FromParcel(parcel);
     bool isEncoder = static_cast<bool>(parcel.readInt32());
+    uint32_t rank = parcel.readUint32();
     sp<MediaCodecInfo> info = new MediaCodecInfo;
     info->mName = name;
     info->mOwner = owner;
     info->mIsEncoder = isEncoder;
+    info->mRank = rank;
     size_t size = static_cast<size_t>(parcel.readInt32());
     for (size_t i = 0; i < size; i++) {
         AString mime = AString::FromParcel(parcel);
@@ -191,6 +197,7 @@
     mName.writeToParcel(parcel);
     mOwner.writeToParcel(parcel);
     parcel->writeInt32(mIsEncoder);
+    parcel->writeUint32(mRank);
     parcel->writeInt32(mCaps.size());
     for (size_t i = 0; i < mCaps.size(); i++) {
         mCaps.keyAt(i).writeToParcel(parcel);
@@ -210,7 +217,7 @@
     return -1;
 }
 
-MediaCodecInfo::MediaCodecInfo() {
+MediaCodecInfo::MediaCodecInfo() : mRank(0x100) {
 }
 
 void MediaCodecInfoWriter::setName(const char* name) {
@@ -225,6 +232,10 @@
     mInfo->mIsEncoder = isEncoder;
 }
 
+void MediaCodecInfoWriter::setRank(uint32_t rank) {
+    mInfo->mRank = rank;
+}
+
 std::unique_ptr<MediaCodecInfo::CapabilitiesWriter>
         MediaCodecInfoWriter::addMime(const char *mime) {
     ssize_t ix = mInfo->getCapabilityIndex(mime);
diff --git a/media/libmedia/NdkWrapper.cpp b/media/libmedia/NdkWrapper.cpp
index 936e92f..5e47b48 100644
--- a/media/libmedia/NdkWrapper.cpp
+++ b/media/libmedia/NdkWrapper.cpp
@@ -574,17 +574,13 @@
 
 //////////// AMediaCodecCryptoInfoWrapper
 // static
-sp<AMediaCodecCryptoInfoWrapper> AMediaCodecCryptoInfoWrapper::Create(sp<MetaData> meta) {
-    if (meta == NULL) {
-        ALOGE("Create: Unexpected. No meta data for sample.");
-        return NULL;
-    }
+sp<AMediaCodecCryptoInfoWrapper> AMediaCodecCryptoInfoWrapper::Create(MetaDataBase &meta) {
 
     uint32_t type;
     const void *crypteddata;
     size_t cryptedsize;
 
-    if (!meta->findData(kKeyEncryptedSizes, &type, &crypteddata, &cryptedsize)) {
+    if (!meta.findData(kKeyEncryptedSizes, &type, &crypteddata, &cryptedsize)) {
         return NULL;
     }
 
@@ -597,7 +593,7 @@
 
     const void *cleardata;
     size_t clearsize;
-    if (meta->findData(kKeyPlainSizes, &type, &cleardata, &clearsize)) {
+    if (meta.findData(kKeyPlainSizes, &type, &cleardata, &clearsize)) {
         if (clearsize != cryptedsize) {
             // The two must be of the same length.
             ALOGE("Create: mismatch cryptedsize: %zu != clearsize: %zu", cryptedsize, clearsize);
@@ -607,7 +603,7 @@
 
     const void *key;
     size_t keysize;
-    if (meta->findData(kKeyCryptoKey, &type, &key, &keysize)) {
+    if (meta.findData(kKeyCryptoKey, &type, &key, &keysize)) {
         if (keysize != kAESBlockSize) {
             // Keys must be 16 bytes in length.
             ALOGE("Create: Keys must be %zu bytes in length: %zu", kAESBlockSize, keysize);
@@ -617,7 +613,7 @@
 
     const void *iv;
     size_t ivsize;
-    if (meta->findData(kKeyCryptoIV, &type, &iv, &ivsize)) {
+    if (meta.findData(kKeyCryptoIV, &type, &iv, &ivsize)) {
         if (ivsize != kAESBlockSize) {
             // IVs must be 16 bytes in length.
             ALOGE("Create: IV must be %zu bytes in length: %zu", kAESBlockSize, ivsize);
@@ -626,7 +622,7 @@
     }
 
     int32_t mode;
-    if (!meta->findInt32(kKeyCryptoMode, &mode)) {
+    if (!meta.findInt32(kKeyCryptoMode, &mode)) {
         mode = CryptoPlugin::kMode_AES_CTR;
     }
 
diff --git a/media/libmedia/include/media/JetPlayer.h b/media/libmedia/include/media/JetPlayer.h
index 63d1980..bb569bc 100644
--- a/media/libmedia/include/media/JetPlayer.h
+++ b/media/libmedia/include/media/JetPlayer.h
@@ -87,7 +87,7 @@
 
     int                 mMaxTracks; // max number of MIDI tracks, usually 32
     EAS_DATA_HANDLE     mEasData;
-    sp<MidiIoWrapper>   mIoWrapper;
+    MidiIoWrapper*      mIoWrapper;
     EAS_PCM*            mAudioBuffer;// EAS renders the MIDI data into this buffer,
     sp<AudioTrack>      mAudioTrack; // and we play it in this audio track
     int                 mTrackBufferSize;
diff --git a/media/libmedia/include/media/MediaCodecInfo.h b/media/libmedia/include/media/MediaCodecInfo.h
index ab2cd24..b3777d3 100644
--- a/media/libmedia/include/media/MediaCodecInfo.h
+++ b/media/libmedia/include/media/MediaCodecInfo.h
@@ -170,6 +170,7 @@
      * Currently, this is the "instance name" of the IOmx service.
      */
     const char *getOwnerName() const;
+    uint32_t rank() const;
 
     /**
      * Serialization over Binder
@@ -182,6 +183,7 @@
     AString mOwner;
     bool mIsEncoder;
     KeyedVector<AString, sp<Capabilities> > mCaps;
+    uint32_t mRank;
 
     ssize_t getCapabilityIndex(const char *mime) const;
 
@@ -252,6 +254,13 @@
      * @return `true` if `mime` is removed; `false` if `mime` is not found.
      */
     bool removeMime(const char* mime);
+    /**
+     * Set rank of the codec. MediaCodecList will stable-sort the list according
+     * to rank in non-descending order.
+     *
+     * @param rank The rank of the component.
+     */
+    void setRank(uint32_t rank);
 private:
     /**
      * The associated `MediaCodecInfo`.
diff --git a/media/libmedia/include/media/MidiIoWrapper.h b/media/libmedia/include/media/MidiIoWrapper.h
index a27b410..b5e565e 100644
--- a/media/libmedia/include/media/MidiIoWrapper.h
+++ b/media/libmedia/include/media/MidiIoWrapper.h
@@ -23,11 +23,11 @@
 
 namespace android {
 
-class MidiIoWrapper : public RefBase {
+class MidiIoWrapper {
 public:
-    MidiIoWrapper(const char *path);
-    MidiIoWrapper(int fd, off64_t offset, int64_t size);
-    MidiIoWrapper(DataSourceBase *source);
+    explicit MidiIoWrapper(const char *path);
+    explicit MidiIoWrapper(int fd, off64_t offset, int64_t size);
+    explicit MidiIoWrapper(DataSourceBase *source);
 
     ~MidiIoWrapper();
 
diff --git a/media/libmedia/include/media/NdkWrapper.h b/media/libmedia/include/media/NdkWrapper.h
index 49d728d..b71b758 100644
--- a/media/libmedia/include/media/NdkWrapper.h
+++ b/media/libmedia/include/media/NdkWrapper.h
@@ -149,7 +149,7 @@
 };
 
 struct AMediaCodecCryptoInfoWrapper : public RefBase {
-    static sp<AMediaCodecCryptoInfoWrapper> Create(sp<MetaData> meta);
+    static sp<AMediaCodecCryptoInfoWrapper> Create(MetaDataBase &meta);
 
     AMediaCodecCryptoInfoWrapper(int numsubsamples,
                                  uint8_t key[16],
diff --git a/media/libmediaextractor/Android.bp b/media/libmediaextractor/Android.bp
index 79af058..b9b47cd 100644
--- a/media/libmediaextractor/Android.bp
+++ b/media/libmediaextractor/Android.bp
@@ -27,10 +27,12 @@
         "MediaBuffer.cpp",
         "MediaBufferBase.cpp",
         "MediaBufferGroup.cpp",
-        "MediaSourceBase.cpp",
         "MediaSource.cpp",
+        "MediaTrack.cpp",
         "MediaExtractor.cpp",
         "MetaData.cpp",
+        "MetaDataBase.cpp",
+        "VorbisComment.cpp",
     ],
 
     clang: true,
diff --git a/media/libmediaextractor/MediaBuffer.cpp b/media/libmediaextractor/MediaBuffer.cpp
index dac3d50..39f8d6e 100644
--- a/media/libmediaextractor/MediaBuffer.cpp
+++ b/media/libmediaextractor/MediaBuffer.cpp
@@ -145,8 +145,8 @@
     mRangeLength = length;
 }
 
-sp<MetaData> MediaBuffer::meta_data() {
-    return mMetaData;
+MetaDataBase& MediaBuffer::meta_data() {
+    return *mMetaData;
 }
 
 void MediaBuffer::reset() {
@@ -170,6 +170,7 @@
    if (mMemory.get() != nullptr) {
        getSharedControl()->setDeadObject();
    }
+   delete mMetaData;
 }
 
 void MediaBuffer::setObserver(MediaBufferObserver *observer) {
@@ -180,7 +181,7 @@
 MediaBufferBase *MediaBuffer::clone() {
     MediaBuffer *buffer = new MediaBuffer(mData, mSize);
     buffer->set_range(mRangeOffset, mRangeLength);
-    buffer->mMetaData = new MetaData(*mMetaData.get());
+    buffer->mMetaData = new MetaDataBase(*mMetaData);
 
     add_ref();
     buffer->mOriginal = this;
diff --git a/media/libmediaextractor/MediaExtractor.cpp b/media/libmediaextractor/MediaExtractor.cpp
index 2241567..a6b3dc9 100644
--- a/media/libmediaextractor/MediaExtractor.cpp
+++ b/media/libmediaextractor/MediaExtractor.cpp
@@ -35,10 +35,6 @@
 
 MediaExtractor::~MediaExtractor() {}
 
-sp<MetaData> MediaExtractor::getMetaData() {
-    return new MetaData;
-}
-
 uint32_t MediaExtractor::flags() const {
     return CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_PAUSE | CAN_SEEK;
 }
diff --git a/media/libmediaextractor/MediaSourceBase.cpp b/media/libmediaextractor/MediaTrack.cpp
similarity index 69%
rename from media/libmediaextractor/MediaSourceBase.cpp
rename to media/libmediaextractor/MediaTrack.cpp
index 6d45c90..4963f58 100644
--- a/media/libmediaextractor/MediaSourceBase.cpp
+++ b/media/libmediaextractor/MediaTrack.cpp
@@ -14,51 +14,51 @@
  * limitations under the License.
  */
 
-#include <media/MediaSourceBase.h>
+#include <media/MediaTrack.h>
 
 namespace android {
 
-MediaSourceBase::MediaSourceBase() {}
+MediaTrack::MediaTrack() {}
 
-MediaSourceBase::~MediaSourceBase() {}
+MediaTrack::~MediaTrack() {}
 
 ////////////////////////////////////////////////////////////////////////////////
 
-MediaSourceBase::ReadOptions::ReadOptions() {
+MediaTrack::ReadOptions::ReadOptions() {
     reset();
 }
 
-void MediaSourceBase::ReadOptions::reset() {
+void MediaTrack::ReadOptions::reset() {
     mOptions = 0;
     mSeekTimeUs = 0;
     mNonBlocking = false;
 }
 
-void MediaSourceBase::ReadOptions::setNonBlocking() {
+void MediaTrack::ReadOptions::setNonBlocking() {
     mNonBlocking = true;
 }
 
-void MediaSourceBase::ReadOptions::clearNonBlocking() {
+void MediaTrack::ReadOptions::clearNonBlocking() {
     mNonBlocking = false;
 }
 
-bool MediaSourceBase::ReadOptions::getNonBlocking() const {
+bool MediaTrack::ReadOptions::getNonBlocking() const {
     return mNonBlocking;
 }
 
-void MediaSourceBase::ReadOptions::setSeekTo(int64_t time_us, SeekMode mode) {
+void MediaTrack::ReadOptions::setSeekTo(int64_t time_us, SeekMode mode) {
     mOptions |= kSeekTo_Option;
     mSeekTimeUs = time_us;
     mSeekMode = mode;
 }
 
-void MediaSourceBase::ReadOptions::clearSeekTo() {
+void MediaTrack::ReadOptions::clearSeekTo() {
     mOptions &= ~kSeekTo_Option;
     mSeekTimeUs = 0;
     mSeekMode = SEEK_CLOSEST_SYNC;
 }
 
-bool MediaSourceBase::ReadOptions::getSeekTo(
+bool MediaTrack::ReadOptions::getSeekTo(
         int64_t *time_us, SeekMode *mode) const {
     *time_us = mSeekTimeUs;
     *mode = mSeekMode;
diff --git a/media/libmediaextractor/MetaData.cpp b/media/libmediaextractor/MetaData.cpp
index 69beea1..1d0a607 100644
--- a/media/libmediaextractor/MetaData.cpp
+++ b/media/libmediaextractor/MetaData.cpp
@@ -31,500 +31,20 @@
 
 namespace android {
 
-struct MetaData::typed_data {
-    typed_data();
-    ~typed_data();
 
-    typed_data(const MetaData::typed_data &);
-    typed_data &operator=(const MetaData::typed_data &);
-
-    void clear();
-    void setData(uint32_t type, const void *data, size_t size);
-    void getData(uint32_t *type, const void **data, size_t *size) const;
-    // may include hexdump of binary data if verbose=true
-    String8 asString(bool verbose) const;
-
-private:
-    uint32_t mType;
-    size_t mSize;
-
-    union {
-        void *ext_data;
-        float reservoir;
-    } u;
-
-    bool usesReservoir() const {
-        return mSize <= sizeof(u.reservoir);
-    }
-
-    void *allocateStorage(size_t size);
-    void freeStorage();
-
-    void *storage() {
-        return usesReservoir() ? &u.reservoir : u.ext_data;
-    }
-
-    const void *storage() const {
-        return usesReservoir() ? &u.reservoir : u.ext_data;
-    }
-};
-
-struct MetaData::Rect {
-    int32_t mLeft, mTop, mRight, mBottom;
-};
-
-
-struct MetaData::MetaDataInternal {
-    KeyedVector<uint32_t, MetaData::typed_data> mItems;
-};
-
-
-MetaData::MetaData()
-    : mInternalData(new MetaDataInternal()) {
+MetaData::MetaData() {
 }
 
 MetaData::MetaData(const MetaData &from)
-    : RefBase(),
-      mInternalData(new MetaDataInternal()) {
-    mInternalData->mItems = from.mInternalData->mItems;
+    : MetaDataBase(from) {
+}
+MetaData::MetaData(const MetaDataBase &from)
+    : MetaDataBase(from) {
 }
 
 MetaData::~MetaData() {
-    clear();
-    delete mInternalData;
 }
 
-void MetaData::clear() {
-    mInternalData->mItems.clear();
-}
-
-bool MetaData::remove(uint32_t key) {
-    ssize_t i = mInternalData->mItems.indexOfKey(key);
-
-    if (i < 0) {
-        return false;
-    }
-
-    mInternalData->mItems.removeItemsAt(i);
-
-    return true;
-}
-
-bool MetaData::setCString(uint32_t key, const char *value) {
-    return setData(key, TYPE_C_STRING, value, strlen(value) + 1);
-}
-
-bool MetaData::setInt32(uint32_t key, int32_t value) {
-    return setData(key, TYPE_INT32, &value, sizeof(value));
-}
-
-bool MetaData::setInt64(uint32_t key, int64_t value) {
-    return setData(key, TYPE_INT64, &value, sizeof(value));
-}
-
-bool MetaData::setFloat(uint32_t key, float value) {
-    return setData(key, TYPE_FLOAT, &value, sizeof(value));
-}
-
-bool MetaData::setPointer(uint32_t key, void *value) {
-    return setData(key, TYPE_POINTER, &value, sizeof(value));
-}
-
-bool MetaData::setRect(
-        uint32_t key,
-        int32_t left, int32_t top,
-        int32_t right, int32_t bottom) {
-    Rect r;
-    r.mLeft = left;
-    r.mTop = top;
-    r.mRight = right;
-    r.mBottom = bottom;
-
-    return setData(key, TYPE_RECT, &r, sizeof(r));
-}
-
-/**
- * Note that the returned pointer becomes invalid when additional metadata is set.
- */
-bool MetaData::findCString(uint32_t key, const char **value) const {
-    uint32_t type;
-    const void *data;
-    size_t size;
-    if (!findData(key, &type, &data, &size) || type != TYPE_C_STRING) {
-        return false;
-    }
-
-    *value = (const char *)data;
-
-    return true;
-}
-
-bool MetaData::findInt32(uint32_t key, int32_t *value) const {
-    uint32_t type = 0;
-    const void *data;
-    size_t size;
-    if (!findData(key, &type, &data, &size) || type != TYPE_INT32) {
-        return false;
-    }
-
-    CHECK_EQ(size, sizeof(*value));
-
-    *value = *(int32_t *)data;
-
-    return true;
-}
-
-bool MetaData::findInt64(uint32_t key, int64_t *value) const {
-    uint32_t type = 0;
-    const void *data;
-    size_t size;
-    if (!findData(key, &type, &data, &size) || type != TYPE_INT64) {
-        return false;
-    }
-
-    CHECK_EQ(size, sizeof(*value));
-
-    *value = *(int64_t *)data;
-
-    return true;
-}
-
-bool MetaData::findFloat(uint32_t key, float *value) const {
-    uint32_t type = 0;
-    const void *data;
-    size_t size;
-    if (!findData(key, &type, &data, &size) || type != TYPE_FLOAT) {
-        return false;
-    }
-
-    CHECK_EQ(size, sizeof(*value));
-
-    *value = *(float *)data;
-
-    return true;
-}
-
-bool MetaData::findPointer(uint32_t key, void **value) const {
-    uint32_t type = 0;
-    const void *data;
-    size_t size;
-    if (!findData(key, &type, &data, &size) || type != TYPE_POINTER) {
-        return false;
-    }
-
-    CHECK_EQ(size, sizeof(*value));
-
-    *value = *(void **)data;
-
-    return true;
-}
-
-bool MetaData::findRect(
-        uint32_t key,
-        int32_t *left, int32_t *top,
-        int32_t *right, int32_t *bottom) const {
-    uint32_t type = 0;
-    const void *data;
-    size_t size;
-    if (!findData(key, &type, &data, &size) || type != TYPE_RECT) {
-        return false;
-    }
-
-    CHECK_EQ(size, sizeof(Rect));
-
-    const Rect *r = (const Rect *)data;
-    *left = r->mLeft;
-    *top = r->mTop;
-    *right = r->mRight;
-    *bottom = r->mBottom;
-
-    return true;
-}
-
-bool MetaData::setData(
-        uint32_t key, uint32_t type, const void *data, size_t size) {
-    bool overwrote_existing = true;
-
-    ssize_t i = mInternalData->mItems.indexOfKey(key);
-    if (i < 0) {
-        typed_data item;
-        i = mInternalData->mItems.add(key, item);
-
-        overwrote_existing = false;
-    }
-
-    typed_data &item = mInternalData->mItems.editValueAt(i);
-
-    item.setData(type, data, size);
-
-    return overwrote_existing;
-}
-
-bool MetaData::findData(uint32_t key, uint32_t *type,
-                        const void **data, size_t *size) const {
-    ssize_t i = mInternalData->mItems.indexOfKey(key);
-
-    if (i < 0) {
-        return false;
-    }
-
-    const typed_data &item = mInternalData->mItems.valueAt(i);
-
-    item.getData(type, data, size);
-
-    return true;
-}
-
-bool MetaData::hasData(uint32_t key) const {
-    ssize_t i = mInternalData->mItems.indexOfKey(key);
-
-    if (i < 0) {
-        return false;
-    }
-
-    return true;
-}
-
-MetaData::typed_data::typed_data()
-    : mType(0),
-      mSize(0) {
-}
-
-MetaData::typed_data::~typed_data() {
-    clear();
-}
-
-MetaData::typed_data::typed_data(const typed_data &from)
-    : mType(from.mType),
-      mSize(0) {
-
-    void *dst = allocateStorage(from.mSize);
-    if (dst) {
-        memcpy(dst, from.storage(), mSize);
-    }
-}
-
-MetaData::typed_data &MetaData::typed_data::operator=(
-        const MetaData::typed_data &from) {
-    if (this != &from) {
-        clear();
-        mType = from.mType;
-        void *dst = allocateStorage(from.mSize);
-        if (dst) {
-            memcpy(dst, from.storage(), mSize);
-        }
-    }
-
-    return *this;
-}
-
-void MetaData::typed_data::clear() {
-    freeStorage();
-
-    mType = 0;
-}
-
-void MetaData::typed_data::setData(
-        uint32_t type, const void *data, size_t size) {
-    clear();
-
-    mType = type;
-
-    void *dst = allocateStorage(size);
-    if (dst) {
-        memcpy(dst, data, size);
-    }
-}
-
-void MetaData::typed_data::getData(
-        uint32_t *type, const void **data, size_t *size) const {
-    *type = mType;
-    *size = mSize;
-    *data = storage();
-}
-
-void *MetaData::typed_data::allocateStorage(size_t size) {
-    mSize = size;
-
-    if (usesReservoir()) {
-        return &u.reservoir;
-    }
-
-    u.ext_data = malloc(mSize);
-    if (u.ext_data == NULL) {
-        ALOGE("Couldn't allocate %zu bytes for item", size);
-        mSize = 0;
-    }
-    return u.ext_data;
-}
-
-void MetaData::typed_data::freeStorage() {
-    if (!usesReservoir()) {
-        if (u.ext_data) {
-            free(u.ext_data);
-            u.ext_data = NULL;
-        }
-    }
-
-    mSize = 0;
-}
-
-String8 MetaData::typed_data::asString(bool verbose) const {
-    String8 out;
-    const void *data = storage();
-    switch(mType) {
-        case TYPE_NONE:
-            out = String8::format("no type, size %zu)", mSize);
-            break;
-        case TYPE_C_STRING:
-            out = String8::format("(char*) %s", (const char *)data);
-            break;
-        case TYPE_INT32:
-            out = String8::format("(int32_t) %d", *(int32_t *)data);
-            break;
-        case TYPE_INT64:
-            out = String8::format("(int64_t) %" PRId64, *(int64_t *)data);
-            break;
-        case TYPE_FLOAT:
-            out = String8::format("(float) %f", *(float *)data);
-            break;
-        case TYPE_POINTER:
-            out = String8::format("(void*) %p", *(void **)data);
-            break;
-        case TYPE_RECT:
-        {
-            const Rect *r = (const Rect *)data;
-            out = String8::format("Rect(%d, %d, %d, %d)",
-                                  r->mLeft, r->mTop, r->mRight, r->mBottom);
-            break;
-        }
-
-        default:
-            out = String8::format("(unknown type %d, size %zu)", mType, mSize);
-            if (verbose && mSize <= 48) { // if it's less than three lines of hex data, dump it
-                AString foo;
-                hexdump(data, mSize, 0, &foo);
-                out.append("\n");
-                out.append(foo.c_str());
-            }
-            break;
-    }
-    return out;
-}
-
-static void MakeFourCCString(uint32_t x, char *s) {
-    s[0] = x >> 24;
-    s[1] = (x >> 16) & 0xff;
-    s[2] = (x >> 8) & 0xff;
-    s[3] = x & 0xff;
-    s[4] = '\0';
-}
-
-String8 MetaData::toString() const {
-    String8 s;
-    for (int i = mInternalData->mItems.size(); --i >= 0;) {
-        int32_t key = mInternalData->mItems.keyAt(i);
-        char cc[5];
-        MakeFourCCString(key, cc);
-        const typed_data &item = mInternalData->mItems.valueAt(i);
-        s.appendFormat("%s: %s", cc, item.asString(false).string());
-        if (i != 0) {
-            s.append(", ");
-        }
-    }
-    return s;
-}
-void MetaData::dumpToLog() const {
-    for (int i = mInternalData->mItems.size(); --i >= 0;) {
-        int32_t key = mInternalData->mItems.keyAt(i);
-        char cc[5];
-        MakeFourCCString(key, cc);
-        const typed_data &item = mInternalData->mItems.valueAt(i);
-        ALOGI("%s: %s", cc, item.asString(true /* verbose */).string());
-    }
-}
-
-status_t MetaData::writeToParcel(Parcel &parcel) {
-    status_t ret;
-    size_t numItems = mInternalData->mItems.size();
-    ret = parcel.writeUint32(uint32_t(numItems));
-    if (ret) {
-        return ret;
-    }
-    for (size_t i = 0; i < numItems; i++) {
-        int32_t key = mInternalData->mItems.keyAt(i);
-        const typed_data &item = mInternalData->mItems.valueAt(i);
-        uint32_t type;
-        const void *data;
-        size_t size;
-        item.getData(&type, &data, &size);
-        ret = parcel.writeInt32(key);
-        if (ret) {
-            return ret;
-        }
-        ret = parcel.writeUint32(type);
-        if (ret) {
-            return ret;
-        }
-        if (type == TYPE_NONE) {
-            android::Parcel::WritableBlob blob;
-            ret = parcel.writeUint32(static_cast<uint32_t>(size));
-            if (ret) {
-                return ret;
-            }
-            ret = parcel.writeBlob(size, false, &blob);
-            if (ret) {
-                return ret;
-            }
-            memcpy(blob.data(), data, size);
-            blob.release();
-        } else {
-            ret = parcel.writeByteArray(size, (uint8_t*)data);
-            if (ret) {
-                return ret;
-            }
-        }
-    }
-    return OK;
-}
-
-status_t MetaData::updateFromParcel(const Parcel &parcel) {
-    uint32_t numItems;
-    if (parcel.readUint32(&numItems) == OK) {
-
-        for (size_t i = 0; i < numItems; i++) {
-            int32_t key;
-            uint32_t type;
-            uint32_t size;
-            status_t ret = parcel.readInt32(&key);
-            ret |= parcel.readUint32(&type);
-            ret |= parcel.readUint32(&size);
-            if (ret != OK) {
-                break;
-            }
-            // copy data from Blob, which may be inline in Parcel storage,
-            // then advance position
-            if (type == TYPE_NONE) {
-                android::Parcel::ReadableBlob blob;
-                ret = parcel.readBlob(size, &blob);
-                if (ret != OK) {
-                    break;
-                }
-                setData(key, type, blob.data(), size);
-                blob.release();
-            } else {
-                // copy data directly from Parcel storage, then advance position
-                setData(key, type, parcel.readInplace(size), size);
-            }
-         }
-
-        return OK;
-    }
-    ALOGW("no metadata in parcel");
-    return UNKNOWN_ERROR;
-}
-
-
 /* static */
 sp<MetaData> MetaData::createFromParcel(const Parcel &parcel) {
 
@@ -533,7 +53,5 @@
     return meta;
 }
 
-
-
 }  // namespace android
 
diff --git a/media/libmediaextractor/MetaDataBase.cpp b/media/libmediaextractor/MetaDataBase.cpp
new file mode 100644
index 0000000..bfea6f1
--- /dev/null
+++ b/media/libmediaextractor/MetaDataBase.cpp
@@ -0,0 +1,533 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MetaDataBase"
+#include <inttypes.h>
+#include <binder/Parcel.h>
+#include <utils/KeyedVector.h>
+#include <utils/Log.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AString.h>
+#include <media/stagefright/foundation/hexdump.h>
+#include <media/stagefright/MetaDataBase.h>
+
+namespace android {
+
+struct MetaDataBase::typed_data {
+    typed_data();
+    ~typed_data();
+
+    typed_data(const MetaDataBase::typed_data &);
+    typed_data &operator=(const MetaDataBase::typed_data &);
+
+    void clear();
+    void setData(uint32_t type, const void *data, size_t size);
+    void getData(uint32_t *type, const void **data, size_t *size) const;
+    // may include hexdump of binary data if verbose=true
+    String8 asString(bool verbose) const;
+
+private:
+    uint32_t mType;
+    size_t mSize;
+
+    union {
+        void *ext_data;
+        float reservoir;
+    } u;
+
+    bool usesReservoir() const {
+        return mSize <= sizeof(u.reservoir);
+    }
+
+    void *allocateStorage(size_t size);
+    void freeStorage();
+
+    void *storage() {
+        return usesReservoir() ? &u.reservoir : u.ext_data;
+    }
+
+    const void *storage() const {
+        return usesReservoir() ? &u.reservoir : u.ext_data;
+    }
+};
+
+struct MetaDataBase::Rect {
+    int32_t mLeft, mTop, mRight, mBottom;
+};
+
+
+struct MetaDataBase::MetaDataInternal {
+    KeyedVector<uint32_t, MetaDataBase::typed_data> mItems;
+};
+
+
+MetaDataBase::MetaDataBase()
+    : mInternalData(new MetaDataInternal()) {
+}
+
+MetaDataBase::MetaDataBase(const MetaDataBase &from)
+    : mInternalData(new MetaDataInternal()) {
+    mInternalData->mItems = from.mInternalData->mItems;
+}
+
+MetaDataBase& MetaDataBase::operator = (const MetaDataBase &rhs) {
+    this->mInternalData->mItems = rhs.mInternalData->mItems;
+    return *this;
+}
+
+MetaDataBase::~MetaDataBase() {
+    clear();
+    delete mInternalData;
+}
+
+void MetaDataBase::clear() {
+    mInternalData->mItems.clear();
+}
+
+bool MetaDataBase::remove(uint32_t key) {
+    ssize_t i = mInternalData->mItems.indexOfKey(key);
+
+    if (i < 0) {
+        return false;
+    }
+
+    mInternalData->mItems.removeItemsAt(i);
+
+    return true;
+}
+
+bool MetaDataBase::setCString(uint32_t key, const char *value) {
+    return setData(key, TYPE_C_STRING, value, strlen(value) + 1);
+}
+
+bool MetaDataBase::setInt32(uint32_t key, int32_t value) {
+    return setData(key, TYPE_INT32, &value, sizeof(value));
+}
+
+bool MetaDataBase::setInt64(uint32_t key, int64_t value) {
+    return setData(key, TYPE_INT64, &value, sizeof(value));
+}
+
+bool MetaDataBase::setFloat(uint32_t key, float value) {
+    return setData(key, TYPE_FLOAT, &value, sizeof(value));
+}
+
+bool MetaDataBase::setPointer(uint32_t key, void *value) {
+    return setData(key, TYPE_POINTER, &value, sizeof(value));
+}
+
+bool MetaDataBase::setRect(
+        uint32_t key,
+        int32_t left, int32_t top,
+        int32_t right, int32_t bottom) {
+    Rect r;
+    r.mLeft = left;
+    r.mTop = top;
+    r.mRight = right;
+    r.mBottom = bottom;
+
+    return setData(key, TYPE_RECT, &r, sizeof(r));
+}
+
+/**
+ * Note that the returned pointer becomes invalid when additional metadata is set.
+ */
+bool MetaDataBase::findCString(uint32_t key, const char **value) const {
+    uint32_t type;
+    const void *data;
+    size_t size;
+    if (!findData(key, &type, &data, &size) || type != TYPE_C_STRING) {
+        return false;
+    }
+
+    *value = (const char *)data;
+
+    return true;
+}
+
+bool MetaDataBase::findInt32(uint32_t key, int32_t *value) const {
+    uint32_t type = 0;
+    const void *data;
+    size_t size;
+    if (!findData(key, &type, &data, &size) || type != TYPE_INT32) {
+        return false;
+    }
+
+    CHECK_EQ(size, sizeof(*value));
+
+    *value = *(int32_t *)data;
+
+    return true;
+}
+
+bool MetaDataBase::findInt64(uint32_t key, int64_t *value) const {
+    uint32_t type = 0;
+    const void *data;
+    size_t size;
+    if (!findData(key, &type, &data, &size) || type != TYPE_INT64) {
+        return false;
+    }
+
+    CHECK_EQ(size, sizeof(*value));
+
+    *value = *(int64_t *)data;
+
+    return true;
+}
+
+bool MetaDataBase::findFloat(uint32_t key, float *value) const {
+    uint32_t type = 0;
+    const void *data;
+    size_t size;
+    if (!findData(key, &type, &data, &size) || type != TYPE_FLOAT) {
+        return false;
+    }
+
+    CHECK_EQ(size, sizeof(*value));
+
+    *value = *(float *)data;
+
+    return true;
+}
+
+bool MetaDataBase::findPointer(uint32_t key, void **value) const {
+    uint32_t type = 0;
+    const void *data;
+    size_t size;
+    if (!findData(key, &type, &data, &size) || type != TYPE_POINTER) {
+        return false;
+    }
+
+    CHECK_EQ(size, sizeof(*value));
+
+    *value = *(void **)data;
+
+    return true;
+}
+
+bool MetaDataBase::findRect(
+        uint32_t key,
+        int32_t *left, int32_t *top,
+        int32_t *right, int32_t *bottom) const {
+    uint32_t type = 0;
+    const void *data;
+    size_t size;
+    if (!findData(key, &type, &data, &size) || type != TYPE_RECT) {
+        return false;
+    }
+
+    CHECK_EQ(size, sizeof(Rect));
+
+    const Rect *r = (const Rect *)data;
+    *left = r->mLeft;
+    *top = r->mTop;
+    *right = r->mRight;
+    *bottom = r->mBottom;
+
+    return true;
+}
+
+bool MetaDataBase::setData(
+        uint32_t key, uint32_t type, const void *data, size_t size) {
+    bool overwrote_existing = true;
+
+    ssize_t i = mInternalData->mItems.indexOfKey(key);
+    if (i < 0) {
+        typed_data item;
+        i = mInternalData->mItems.add(key, item);
+
+        overwrote_existing = false;
+    }
+
+    typed_data &item = mInternalData->mItems.editValueAt(i);
+
+    item.setData(type, data, size);
+
+    return overwrote_existing;
+}
+
+bool MetaDataBase::findData(uint32_t key, uint32_t *type,
+                        const void **data, size_t *size) const {
+    ssize_t i = mInternalData->mItems.indexOfKey(key);
+
+    if (i < 0) {
+        return false;
+    }
+
+    const typed_data &item = mInternalData->mItems.valueAt(i);
+
+    item.getData(type, data, size);
+
+    return true;
+}
+
+bool MetaDataBase::hasData(uint32_t key) const {
+    ssize_t i = mInternalData->mItems.indexOfKey(key);
+
+    if (i < 0) {
+        return false;
+    }
+
+    return true;
+}
+
+MetaDataBase::typed_data::typed_data()
+    : mType(0),
+      mSize(0) {
+}
+
+MetaDataBase::typed_data::~typed_data() {
+    clear();
+}
+
+MetaDataBase::typed_data::typed_data(const typed_data &from)
+    : mType(from.mType),
+      mSize(0) {
+
+    void *dst = allocateStorage(from.mSize);
+    if (dst) {
+        memcpy(dst, from.storage(), mSize);
+    }
+}
+
+MetaDataBase::typed_data &MetaDataBase::typed_data::operator=(
+        const MetaDataBase::typed_data &from) {
+    if (this != &from) {
+        clear();
+        mType = from.mType;
+        void *dst = allocateStorage(from.mSize);
+        if (dst) {
+            memcpy(dst, from.storage(), mSize);
+        }
+    }
+
+    return *this;
+}
+
+void MetaDataBase::typed_data::clear() {
+    freeStorage();
+
+    mType = 0;
+}
+
+void MetaDataBase::typed_data::setData(
+        uint32_t type, const void *data, size_t size) {
+    clear();
+
+    mType = type;
+
+    void *dst = allocateStorage(size);
+    if (dst) {
+        memcpy(dst, data, size);
+    }
+}
+
+void MetaDataBase::typed_data::getData(
+        uint32_t *type, const void **data, size_t *size) const {
+    *type = mType;
+    *size = mSize;
+    *data = storage();
+}
+
+void *MetaDataBase::typed_data::allocateStorage(size_t size) {
+    mSize = size;
+
+    if (usesReservoir()) {
+        return &u.reservoir;
+    }
+
+    u.ext_data = malloc(mSize);
+    if (u.ext_data == NULL) {
+        ALOGE("Couldn't allocate %zu bytes for item", size);
+        mSize = 0;
+    }
+    return u.ext_data;
+}
+
+void MetaDataBase::typed_data::freeStorage() {
+    if (!usesReservoir()) {
+        if (u.ext_data) {
+            free(u.ext_data);
+            u.ext_data = NULL;
+        }
+    }
+
+    mSize = 0;
+}
+
+String8 MetaDataBase::typed_data::asString(bool verbose) const {
+    String8 out;
+    const void *data = storage();
+    switch(mType) {
+        case TYPE_NONE:
+            out = String8::format("no type, size %zu)", mSize);
+            break;
+        case TYPE_C_STRING:
+            out = String8::format("(char*) %s", (const char *)data);
+            break;
+        case TYPE_INT32:
+            out = String8::format("(int32_t) %d", *(int32_t *)data);
+            break;
+        case TYPE_INT64:
+            out = String8::format("(int64_t) %" PRId64, *(int64_t *)data);
+            break;
+        case TYPE_FLOAT:
+            out = String8::format("(float) %f", *(float *)data);
+            break;
+        case TYPE_POINTER:
+            out = String8::format("(void*) %p", *(void **)data);
+            break;
+        case TYPE_RECT:
+        {
+            const Rect *r = (const Rect *)data;
+            out = String8::format("Rect(%d, %d, %d, %d)",
+                                  r->mLeft, r->mTop, r->mRight, r->mBottom);
+            break;
+        }
+
+        default:
+            out = String8::format("(unknown type %d, size %zu)", mType, mSize);
+            if (verbose && mSize <= 48) { // if it's less than three lines of hex data, dump it
+                AString foo;
+                hexdump(data, mSize, 0, &foo);
+                out.append("\n");
+                out.append(foo.c_str());
+            }
+            break;
+    }
+    return out;
+}
+
+static void MakeFourCCString(uint32_t x, char *s) {
+    s[0] = x >> 24;
+    s[1] = (x >> 16) & 0xff;
+    s[2] = (x >> 8) & 0xff;
+    s[3] = x & 0xff;
+    s[4] = '\0';
+}
+
+String8 MetaDataBase::toString() const {
+    String8 s;
+    for (int i = mInternalData->mItems.size(); --i >= 0;) {
+        int32_t key = mInternalData->mItems.keyAt(i);
+        char cc[5];
+        MakeFourCCString(key, cc);
+        const typed_data &item = mInternalData->mItems.valueAt(i);
+        s.appendFormat("%s: %s", cc, item.asString(false).string());
+        if (i != 0) {
+            s.append(", ");
+        }
+    }
+    return s;
+}
+
+void MetaDataBase::dumpToLog() const {
+    for (int i = mInternalData->mItems.size(); --i >= 0;) {
+        int32_t key = mInternalData->mItems.keyAt(i);
+        char cc[5];
+        MakeFourCCString(key, cc);
+        const typed_data &item = mInternalData->mItems.valueAt(i);
+        ALOGI("%s: %s", cc, item.asString(true /* verbose */).string());
+    }
+}
+
+status_t MetaDataBase::writeToParcel(Parcel &parcel) {
+    status_t ret;
+    size_t numItems = mInternalData->mItems.size();
+    ret = parcel.writeUint32(uint32_t(numItems));
+    if (ret) {
+        return ret;
+    }
+    for (size_t i = 0; i < numItems; i++) {
+        int32_t key = mInternalData->mItems.keyAt(i);
+        const typed_data &item = mInternalData->mItems.valueAt(i);
+        uint32_t type;
+        const void *data;
+        size_t size;
+        item.getData(&type, &data, &size);
+        ret = parcel.writeInt32(key);
+        if (ret) {
+            return ret;
+        }
+        ret = parcel.writeUint32(type);
+        if (ret) {
+            return ret;
+        }
+        if (type == TYPE_NONE) {
+            android::Parcel::WritableBlob blob;
+            ret = parcel.writeUint32(static_cast<uint32_t>(size));
+            if (ret) {
+                return ret;
+            }
+            ret = parcel.writeBlob(size, false, &blob);
+            if (ret) {
+                return ret;
+            }
+            memcpy(blob.data(), data, size);
+            blob.release();
+        } else {
+            ret = parcel.writeByteArray(size, (uint8_t*)data);
+            if (ret) {
+                return ret;
+            }
+        }
+    }
+    return OK;
+}
+
+status_t MetaDataBase::updateFromParcel(const Parcel &parcel) {
+    uint32_t numItems;
+    if (parcel.readUint32(&numItems) == OK) {
+
+        for (size_t i = 0; i < numItems; i++) {
+            int32_t key;
+            uint32_t type;
+            uint32_t size;
+            status_t ret = parcel.readInt32(&key);
+            ret |= parcel.readUint32(&type);
+            ret |= parcel.readUint32(&size);
+            if (ret != OK) {
+                break;
+            }
+            // copy data from Blob, which may be inline in Parcel storage,
+            // then advance position
+            if (type == TYPE_NONE) {
+                android::Parcel::ReadableBlob blob;
+                ret = parcel.readBlob(size, &blob);
+                if (ret != OK) {
+                    break;
+                }
+                setData(key, type, blob.data(), size);
+                blob.release();
+            } else {
+                // copy data directly from Parcel storage, then advance position
+                setData(key, type, parcel.readInplace(size), size);
+            }
+         }
+
+        return OK;
+    }
+    ALOGW("no metadata in parcel");
+    return UNKNOWN_ERROR;
+}
+
+}  // namespace android
+
diff --git a/media/libmediaextractor/VorbisComment.cpp b/media/libmediaextractor/VorbisComment.cpp
new file mode 100644
index 0000000..fabaf51
--- /dev/null
+++ b/media/libmediaextractor/VorbisComment.cpp
@@ -0,0 +1,153 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "VorbisComment"
+#include <utils/Log.h>
+
+#include "media/VorbisComment.h"
+
+#include <media/stagefright/foundation/base64.h>
+#include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/foundation/AString.h>
+#include <media/stagefright/foundation/ByteUtils.h>
+#include <media/stagefright/MetaDataBase.h>
+
+namespace android {
+
+static void extractAlbumArt(
+        MetaDataBase *fileMeta, const void *data, size_t size) {
+    ALOGV("extractAlbumArt from '%s'", (const char *)data);
+
+    sp<ABuffer> flacBuffer = decodeBase64(AString((const char *)data, size));
+    if (flacBuffer == NULL) {
+        ALOGE("malformed base64 encoded data.");
+        return;
+    }
+
+    size_t flacSize = flacBuffer->size();
+    uint8_t *flac = flacBuffer->data();
+    ALOGV("got flac of size %zu", flacSize);
+
+    uint32_t picType;
+    uint32_t typeLen;
+    uint32_t descLen;
+    uint32_t dataLen;
+    char type[128];
+
+    if (flacSize < 8) {
+        return;
+    }
+
+    picType = U32_AT(flac);
+
+    if (picType != 3) {
+        // This is not a front cover.
+        return;
+    }
+
+    typeLen = U32_AT(&flac[4]);
+    if (typeLen > sizeof(type) - 1) {
+        return;
+    }
+
+    // we've already checked above that flacSize >= 8
+    if (flacSize - 8 < typeLen) {
+        return;
+    }
+
+    memcpy(type, &flac[8], typeLen);
+    type[typeLen] = '\0';
+
+    ALOGV("picType = %d, type = '%s'", picType, type);
+
+    if (!strcmp(type, "-->")) {
+        // This is not inline cover art, but an external url instead.
+        return;
+    }
+
+    if (flacSize < 32 || flacSize - 32 < typeLen) {
+        return;
+    }
+
+    descLen = U32_AT(&flac[8 + typeLen]);
+    if (flacSize - 32 - typeLen < descLen) {
+        return;
+    }
+
+    dataLen = U32_AT(&flac[8 + typeLen + 4 + descLen + 16]);
+
+    // we've already checked above that (flacSize - 32 - typeLen - descLen) >= 0
+    if (flacSize - 32 - typeLen - descLen < dataLen) {
+        return;
+    }
+
+    ALOGV("got image data, %zu trailing bytes",
+         flacSize - 32 - typeLen - descLen - dataLen);
+
+    fileMeta->setData(
+            kKeyAlbumArt, 0, &flac[8 + typeLen + 4 + descLen + 20], dataLen);
+
+    fileMeta->setCString(kKeyAlbumArtMIME, type);
+}
+
+void parseVorbisComment(
+        MetaDataBase *fileMeta, const char *comment, size_t commentLength)
+{
+    struct {
+        const char *const mTag;
+        uint32_t mKey;
+    } kMap[] = {
+        { "TITLE", kKeyTitle },
+        { "ARTIST", kKeyArtist },
+        { "ALBUMARTIST", kKeyAlbumArtist },
+        { "ALBUM ARTIST", kKeyAlbumArtist },
+        { "COMPILATION", kKeyCompilation },
+        { "ALBUM", kKeyAlbum },
+        { "COMPOSER", kKeyComposer },
+        { "GENRE", kKeyGenre },
+        { "AUTHOR", kKeyAuthor },
+        { "TRACKNUMBER", kKeyCDTrackNumber },
+        { "DISCNUMBER", kKeyDiscNumber },
+        { "DATE", kKeyDate },
+        { "YEAR", kKeyYear },
+        { "LYRICIST", kKeyWriter },
+        { "METADATA_BLOCK_PICTURE", kKeyAlbumArt },
+        { "ANDROID_LOOP", kKeyAutoLoop },
+    };
+
+        for (size_t j = 0; j < sizeof(kMap) / sizeof(kMap[0]); ++j) {
+            size_t tagLen = strlen(kMap[j].mTag);
+            if (!strncasecmp(kMap[j].mTag, comment, tagLen)
+                    && comment[tagLen] == '=') {
+                if (kMap[j].mKey == kKeyAlbumArt) {
+                    extractAlbumArt(
+                            fileMeta,
+                            &comment[tagLen + 1],
+                            commentLength - tagLen - 1);
+                } else if (kMap[j].mKey == kKeyAutoLoop) {
+                    if (!strcasecmp(&comment[tagLen + 1], "true")) {
+                        fileMeta->setInt32(kKeyAutoLoop, true);
+                    }
+                } else {
+                    fileMeta->setCString(kMap[j].mKey, &comment[tagLen + 1]);
+                }
+            }
+        }
+
+}
+
+}  // namespace android
diff --git a/media/libmediaextractor/include/media/DataSource.h b/media/libmediaextractor/include/media/DataSource.h
index a066183..1ae2e21 100644
--- a/media/libmediaextractor/include/media/DataSource.h
+++ b/media/libmediaextractor/include/media/DataSource.h
@@ -21,6 +21,7 @@
 #include <sys/types.h>
 #include <media/stagefright/MediaErrors.h>
 #include <media/DataSourceBase.h>
+#include <media/IDataSource.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 #include <utils/threads.h>
@@ -35,6 +36,11 @@
 public:
     DataSource() {}
 
+    // returns a pointer to IDataSource if it is wrapped.
+    virtual sp<IDataSource> getIDataSource() const {
+        return nullptr;
+    }
+
 protected:
     virtual ~DataSource() {}
 
diff --git a/media/libmediaextractor/include/media/MediaExtractor.h b/media/libmediaextractor/include/media/MediaExtractor.h
index c329903..4ba98da 100644
--- a/media/libmediaextractor/include/media/MediaExtractor.h
+++ b/media/libmediaextractor/include/media/MediaExtractor.h
@@ -28,8 +28,8 @@
 namespace android {
 
 class DataSourceBase;
-class MetaData;
-struct MediaSourceBase;
+class MetaDataBase;
+struct MediaTrack;
 
 
 class ExtractorAllocTracker {
@@ -49,17 +49,18 @@
 public:
     virtual ~MediaExtractor();
     virtual size_t countTracks() = 0;
-    virtual MediaSourceBase *getTrack(size_t index) = 0;
+    virtual MediaTrack *getTrack(size_t index) = 0;
 
     enum GetTrackMetaDataFlags {
         kIncludeExtensiveMetaData = 1
     };
-    virtual sp<MetaData> getTrackMetaData(
+    virtual status_t getTrackMetaData(
+            MetaDataBase& meta,
             size_t index, uint32_t flags = 0) = 0;
 
     // Return container specific meta-data. The default implementation
     // returns an empty metadata object.
-    virtual sp<MetaData> getMetaData();
+    virtual status_t getMetaData(MetaDataBase& meta) = 0;
 
     enum Flags {
         CAN_SEEK_BACKWARD  = 1,  // the "seek 10secs back button"
diff --git a/media/libmediaextractor/include/media/MediaSource.h b/media/libmediaextractor/include/media/MediaSource.h
index 45070d6..73c4703 100644
--- a/media/libmediaextractor/include/media/MediaSource.h
+++ b/media/libmediaextractor/include/media/MediaSource.h
@@ -1,4 +1,5 @@
 /*
+
  * Copyright (C) 2009 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -24,15 +25,71 @@
 #include <media/stagefright/MetaData.h>
 #include <utils/RefBase.h>
 
-#include "media/MediaSourceBase.h"
+#include <media/MediaTrack.h>
 
 namespace android {
 
 class MediaBuffer;
 
-struct MediaSource : public MediaSourceBase, public virtual RefBase {
+struct MediaSource : public virtual RefBase {
     MediaSource();
 
+    // To be called before any other methods on this object, except
+    // getFormat().
+    virtual status_t start(MetaData *params = NULL) = 0;
+
+    // Any blocking read call returns immediately with a result of NO_INIT.
+    // It is an error to call any methods other than start after this call
+    // returns. Any buffers the object may be holding onto at the time of
+    // the stop() call are released.
+    // Also, it is imperative that any buffers output by this object and
+    // held onto by callers be released before a call to stop() !!!
+    virtual status_t stop() = 0;
+
+    // Returns the format of the data output by this media source.
+    virtual sp<MetaData> getFormat() = 0;
+
+    // Options that modify read() behaviour. The default is to
+    // a) not request a seek
+    // b) not be late, i.e. lateness_us = 0
+    typedef MediaTrack::ReadOptions ReadOptions;
+
+    // Returns a new buffer of data. Call blocks until a
+    // buffer is available, an error is encountered of the end of the stream
+    // is reached.
+    // End of stream is signalled by a result of ERROR_END_OF_STREAM.
+    // A result of INFO_FORMAT_CHANGED indicates that the format of this
+    // MediaSource has changed mid-stream, the client can continue reading
+    // but should be prepared for buffers of the new configuration.
+    virtual status_t read(
+            MediaBufferBase **buffer, const ReadOptions *options = NULL) = 0;
+
+    // Causes this source to suspend pulling data from its upstream source
+    // until a subsequent read-with-seek. This is currently not supported
+    // as such by any source. E.g. MediaCodecSource does not suspend its
+    // upstream source, and instead discard upstream data while paused.
+    virtual status_t pause() {
+        return ERROR_UNSUPPORTED;
+    }
+
+    // The consumer of this media source requests the source stops sending
+    // buffers with timestamp larger than or equal to stopTimeUs. stopTimeUs
+    // must be in the same time base as the startTime passed in start(). If
+    // source does not support this request, ERROR_UNSUPPORTED will be returned.
+    // If stopTimeUs is invalid, BAD_VALUE will be returned. This could be
+    // called at any time even before source starts and it could be called
+    // multiple times. Setting stopTimeUs to be -1 will effectively cancel the stopTimeUs
+    // set previously. If stopTimeUs is larger than or equal to last buffer's timestamp,
+    // source will start to drop buffer when it gets a buffer with timestamp larger
+    // than or equal to stopTimeUs. If stopTimeUs is smaller than or equal to last
+    // buffer's timestamp, source will drop all the incoming buffers immediately.
+    // After setting stopTimeUs, source may still stop sending buffers with timestamp
+    // less than stopTimeUs if it is stopped by the consumer.
+    virtual status_t setStopTimeUs(int64_t /* stopTimeUs */) {
+        return ERROR_UNSUPPORTED;
+    }
+
+protected:
     virtual ~MediaSource();
 
 private:
diff --git a/media/libmediaextractor/include/media/MediaSourceBase.h b/media/libmediaextractor/include/media/MediaTrack.h
similarity index 65%
rename from media/libmediaextractor/include/media/MediaSourceBase.h
rename to media/libmediaextractor/include/media/MediaTrack.h
index ab56613..adea61a 100644
--- a/media/libmediaextractor/include/media/MediaSourceBase.h
+++ b/media/libmediaextractor/include/media/MediaTrack.h
@@ -42,14 +42,14 @@
     }
 };
 
-struct MediaSourceBase
+struct MediaTrack
 //    : public SourceBaseAllocTracker
 {
-    MediaSourceBase();
+    MediaTrack();
 
     // To be called before any other methods on this object, except
     // getFormat().
-    virtual status_t start(MetaData *params = NULL) = 0;
+    virtual status_t start(MetaDataBase *params = NULL) = 0;
 
     // Any blocking read call returns immediately with a result of NO_INIT.
     // It is an error to call any methods other than start after this call
@@ -59,8 +59,8 @@
     // held onto by callers be released before a call to stop() !!!
     virtual status_t stop() = 0;
 
-    // Returns the format of the data output by this media source.
-    virtual sp<MetaData> getFormat() = 0;
+    // Returns the format of the data output by this media track.
+    virtual status_t getFormat(MetaDataBase& format) = 0;
 
     // Options that modify read() behaviour. The default is to
     // a) not request a seek
@@ -113,36 +113,11 @@
     virtual status_t read(
             MediaBufferBase **buffer, const ReadOptions *options = NULL) = 0;
 
-    // Causes this source to suspend pulling data from its upstream source
-    // until a subsequent read-with-seek. This is currently not supported
-    // as such by any source. E.g. MediaCodecSource does not suspend its
-    // upstream source, and instead discard upstream data while paused.
-    virtual status_t pause() {
-        return ERROR_UNSUPPORTED;
-    }
-
-    // The consumer of this media source requests the source stops sending
-    // buffers with timestamp larger than or equal to stopTimeUs. stopTimeUs
-    // must be in the same time base as the startTime passed in start(). If
-    // source does not support this request, ERROR_UNSUPPORTED will be returned.
-    // If stopTimeUs is invalid, BAD_VALUE will be returned. This could be
-    // called at any time even before source starts and it could be called
-    // multiple times. Setting stopTimeUs to be -1 will effectively cancel the stopTimeUs
-    // set previously. If stopTimeUs is larger than or equal to last buffer's timestamp,
-    // source will start to drop buffer when it gets a buffer with timestamp larger
-    // than or equal to stopTimeUs. If stopTimeUs is smaller than or equal to last
-    // buffer's timestamp, source will drop all the incoming buffers immediately.
-    // After setting stopTimeUs, source may still stop sending buffers with timestamp
-    // less than stopTimeUs if it is stopped by the consumer.
-    virtual status_t setStopTimeUs(int64_t /* stopTimeUs */) {
-        return ERROR_UNSUPPORTED;
-    }
-
-    virtual ~MediaSourceBase();
+    virtual ~MediaTrack();
 
 private:
-    MediaSourceBase(const MediaSourceBase &);
-    MediaSourceBase &operator=(const MediaSourceBase &);
+    MediaTrack(const MediaTrack &);
+    MediaTrack &operator=(const MediaTrack &);
 };
 
 }  // namespace android
diff --git a/media/libmediaextractor/include/media/VorbisComment.h b/media/libmediaextractor/include/media/VorbisComment.h
new file mode 100644
index 0000000..8ba3295
--- /dev/null
+++ b/media/libmediaextractor/include/media/VorbisComment.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef VORBIS_COMMENT_H_
+#define VORBIS_COMMENT_H_
+
+namespace android {
+
+class MetaDataBase;
+
+void parseVorbisComment(
+        MetaDataBase *fileMeta, const char *comment, size_t commentLength);
+
+}  // namespace android
+
+#endif // VORBIS_COMMENT_H_
diff --git a/media/libmediaextractor/include/media/stagefright/MediaBuffer.h b/media/libmediaextractor/include/media/stagefright/MediaBuffer.h
index 85b4521..f944d51 100644
--- a/media/libmediaextractor/include/media/stagefright/MediaBuffer.h
+++ b/media/libmediaextractor/include/media/stagefright/MediaBuffer.h
@@ -33,7 +33,7 @@
 struct ABuffer;
 class MediaBuffer;
 class MediaBufferObserver;
-class MetaData;
+class MetaDataBase;
 
 class MediaBuffer : public MediaBufferBase {
 public:
@@ -73,7 +73,7 @@
 
     virtual void set_range(size_t offset, size_t length);
 
-    virtual sp<MetaData> meta_data();
+    MetaDataBase& meta_data();
 
     // Clears meta data and resets the range to the full extent.
     virtual void reset();
@@ -154,7 +154,7 @@
 
     bool mOwnsData;
 
-    sp<MetaData> mMetaData;
+    MetaDataBase* mMetaData;
 
     MediaBuffer *mOriginal;
 
diff --git a/media/libmediaextractor/include/media/stagefright/MediaBufferBase.h b/media/libmediaextractor/include/media/stagefright/MediaBufferBase.h
index 81dd7d9..6c8d94a 100644
--- a/media/libmediaextractor/include/media/stagefright/MediaBufferBase.h
+++ b/media/libmediaextractor/include/media/stagefright/MediaBufferBase.h
@@ -18,12 +18,10 @@
 
 #define MEDIA_BUFFER_BASE_H_
 
-#include <utils/RefBase.h>
-
 namespace android {
 
 class MediaBufferBase;
-class MetaData;
+class MetaDataBase;
 
 class MediaBufferObserver {
 public:
@@ -61,7 +59,7 @@
 
     virtual void set_range(size_t offset, size_t length) = 0;
 
-    virtual sp<MetaData> meta_data() = 0;
+    virtual MetaDataBase& meta_data() = 0;
 
     // Clears meta data and resets the range to the full extent.
     virtual void reset() = 0;
diff --git a/media/libmediaextractor/include/media/stagefright/MetaData.h b/media/libmediaextractor/include/media/stagefright/MetaData.h
index 7562a72..f625358 100644
--- a/media/libmediaextractor/include/media/stagefright/MetaData.h
+++ b/media/libmediaextractor/include/media/stagefright/MetaData.h
@@ -24,275 +24,24 @@
 
 #include <utils/RefBase.h>
 #include <utils/String8.h>
+#include <media/stagefright/MetaDataBase.h>
 
 namespace android {
 
-class Parcel;
-
-// The following keys map to int32_t data unless indicated otherwise.
-enum {
-    kKeyMIMEType          = 'mime',  // cstring
-    kKeyWidth             = 'widt',  // int32_t, image pixel
-    kKeyHeight            = 'heig',  // int32_t, image pixel
-    kKeyDisplayWidth      = 'dWid',  // int32_t, display/presentation
-    kKeyDisplayHeight     = 'dHgt',  // int32_t, display/presentation
-    kKeySARWidth          = 'sarW',  // int32_t, sampleAspectRatio width
-    kKeySARHeight         = 'sarH',  // int32_t, sampleAspectRatio height
-    kKeyThumbnailWidth    = 'thbW',  // int32_t, thumbnail width
-    kKeyThumbnailHeight   = 'thbH',  // int32_t, thumbnail height
-
-    // a rectangle, if absent assumed to be (0, 0, width - 1, height - 1)
-    kKeyCropRect          = 'crop',
-
-    kKeyRotation          = 'rotA',  // int32_t (angle in degrees)
-    kKeyIFramesInterval   = 'ifiv',  // int32_t
-    kKeyStride            = 'strd',  // int32_t
-    kKeySliceHeight       = 'slht',  // int32_t
-    kKeyChannelCount      = '#chn',  // int32_t
-    kKeyChannelMask       = 'chnm',  // int32_t
-    kKeySampleRate        = 'srte',  // int32_t (audio sampling rate Hz)
-    kKeyPcmEncoding       = 'PCMe',  // int32_t (audio encoding enum)
-    kKeyFrameRate         = 'frmR',  // int32_t (video frame rate fps)
-    kKeyBitRate           = 'brte',  // int32_t (bps)
-    kKeyMaxBitRate        = 'mxBr',  // int32_t (bps)
-    kKeyStreamHeader      = 'stHd',  // raw data
-    kKeyESDS              = 'esds',  // raw data
-    kKeyAACProfile        = 'aacp',  // int32_t
-    kKeyAVCC              = 'avcc',  // raw data
-    kKeyHVCC              = 'hvcc',  // raw data
-    kKeyThumbnailHVCC     = 'thvc',  // raw data
-    kKeyD263              = 'd263',  // raw data
-    kKeyVorbisInfo        = 'vinf',  // raw data
-    kKeyVorbisBooks       = 'vboo',  // raw data
-    kKeyOpusHeader        = 'ohdr',  // raw data
-    kKeyOpusCodecDelay    = 'ocod',  // uint64_t (codec delay in ns)
-    kKeyOpusSeekPreRoll   = 'ospr',  // uint64_t (seek preroll in ns)
-    kKeyFlacMetadata      = 'flMd',  // raw data
-    kKeyVp9CodecPrivate   = 'vp9p',  // raw data (vp9 csd information)
-    kKeyWantsNALFragments = 'NALf',
-    kKeyIsSyncFrame       = 'sync',  // int32_t (bool)
-    kKeyIsCodecConfig     = 'conf',  // int32_t (bool)
-    kKeyTime              = 'time',  // int64_t (usecs)
-    kKeyDecodingTime      = 'decT',  // int64_t (decoding timestamp in usecs)
-    kKeyNTPTime           = 'ntpT',  // uint64_t (ntp-timestamp)
-    kKeyTargetTime        = 'tarT',  // int64_t (usecs)
-    kKeyDriftTime         = 'dftT',  // int64_t (usecs)
-    kKeyAnchorTime        = 'ancT',  // int64_t (usecs)
-    kKeyDuration          = 'dura',  // int64_t (usecs)
-    kKeyPixelFormat       = 'pixf',  // int32_t
-    kKeyColorFormat       = 'colf',  // int32_t
-    kKeyColorSpace        = 'cols',  // int32_t
-    kKeyPlatformPrivate   = 'priv',  // pointer
-    kKeyDecoderComponent  = 'decC',  // cstring
-    kKeyBufferID          = 'bfID',
-    kKeyMaxInputSize      = 'inpS',
-    kKeyMaxWidth          = 'maxW',
-    kKeyMaxHeight         = 'maxH',
-    kKeyThumbnailTime     = 'thbT',  // int64_t (usecs)
-    kKeyTrackID           = 'trID',
-    kKeyIsDRM             = 'idrm',  // int32_t (bool)
-    kKeyEncoderDelay      = 'encd',  // int32_t (frames)
-    kKeyEncoderPadding    = 'encp',  // int32_t (frames)
-
-    kKeyAlbum             = 'albu',  // cstring
-    kKeyArtist            = 'arti',  // cstring
-    kKeyAlbumArtist       = 'aart',  // cstring
-    kKeyComposer          = 'comp',  // cstring
-    kKeyGenre             = 'genr',  // cstring
-    kKeyTitle             = 'titl',  // cstring
-    kKeyYear              = 'year',  // cstring
-    kKeyAlbumArt          = 'albA',  // compressed image data
-    kKeyAlbumArtMIME      = 'alAM',  // cstring
-    kKeyAuthor            = 'auth',  // cstring
-    kKeyCDTrackNumber     = 'cdtr',  // cstring
-    kKeyDiscNumber        = 'dnum',  // cstring
-    kKeyDate              = 'date',  // cstring
-    kKeyWriter            = 'writ',  // cstring
-    kKeyCompilation       = 'cpil',  // cstring
-    kKeyLocation          = 'loc ',  // cstring
-    kKeyTimeScale         = 'tmsl',  // int32_t
-    kKeyCaptureFramerate  = 'capF',  // float (capture fps)
-
-    // video profile and level
-    kKeyVideoProfile      = 'vprf',  // int32_t
-    kKeyVideoLevel        = 'vlev',  // int32_t
-
-    // Set this key to enable authoring files in 64-bit offset
-    kKey64BitFileOffset   = 'fobt',  // int32_t (bool)
-    kKey2ByteNalLength    = '2NAL',  // int32_t (bool)
-
-    // Identify the file output format for authoring
-    // Please see <media/mediarecorder.h> for the supported
-    // file output formats.
-    kKeyFileType          = 'ftyp',  // int32_t
-
-    // Track authoring progress status
-    // kKeyTrackTimeStatus is used to track progress in elapsed time
-    kKeyTrackTimeStatus   = 'tktm',  // int64_t
-
-    kKeyRealTimeRecording = 'rtrc',  // bool (int32_t)
-    kKeyNumBuffers        = 'nbbf',  // int32_t
-
-    // Ogg files can be tagged to be automatically looping...
-    kKeyAutoLoop          = 'autL',  // bool (int32_t)
-
-    kKeyValidSamples      = 'valD',  // int32_t
-
-    kKeyIsUnreadable      = 'unre',  // bool (int32_t)
-
-    // An indication that a video buffer has been rendered.
-    kKeyRendered          = 'rend',  // bool (int32_t)
-
-    // The language code for this media
-    kKeyMediaLanguage     = 'lang',  // cstring
-
-    // To store the timed text format data
-    kKeyTextFormatData    = 'text',  // raw data
-
-    kKeyIsADTS            = 'adts',  // bool (int32_t)
-    kKeyAACAOT            = 'aaot',  // int32_t
-
-    // If a MediaBuffer's data represents (at least partially) encrypted
-    // data, the following fields aid in decryption.
-    // The data can be thought of as pairs of plain and encrypted data
-    // fragments, i.e. plain and encrypted data alternate.
-    // The first fragment is by convention plain data (if that's not the
-    // case, simply specify plain fragment size of 0).
-    // kKeyEncryptedSizes and kKeyPlainSizes each map to an array of
-    // size_t values. The sum total of all size_t values of both arrays
-    // must equal the amount of data (i.e. MediaBuffer's range_length()).
-    // If both arrays are present, they must be of the same size.
-    // If only encrypted sizes are present it is assumed that all
-    // plain sizes are 0, i.e. all fragments are encrypted.
-    // To programmatically set these array, use the MetaData::setData API, i.e.
-    // const size_t encSizes[];
-    // meta->setData(
-    //  kKeyEncryptedSizes, 0 /* type */, encSizes, sizeof(encSizes));
-    // A plain sizes array by itself makes no sense.
-    kKeyEncryptedSizes    = 'encr',  // size_t[]
-    kKeyPlainSizes        = 'plai',  // size_t[]
-    kKeyCryptoKey         = 'cryK',  // uint8_t[16]
-    kKeyCryptoIV          = 'cryI',  // uint8_t[16]
-    kKeyCryptoMode        = 'cryM',  // int32_t
-
-    kKeyCryptoDefaultIVSize = 'cryS',  // int32_t
-
-    kKeyPssh              = 'pssh',  // raw data
-    kKeyCASystemID        = 'caid',  // int32_t
-    kKeyCASessionID       = 'seid',  // raw data
-
-    // Please see MediaFormat.KEY_IS_AUTOSELECT.
-    kKeyTrackIsAutoselect = 'auto', // bool (int32_t)
-    // Please see MediaFormat.KEY_IS_DEFAULT.
-    kKeyTrackIsDefault    = 'dflt', // bool (int32_t)
-    // Similar to MediaFormat.KEY_IS_FORCED_SUBTITLE but pertains to av tracks as well.
-    kKeyTrackIsForced     = 'frcd', // bool (int32_t)
-
-    // H264 supplemental enhancement information offsets/sizes
-    kKeySEI               = 'sei ', // raw data
-
-    // MPEG user data offsets
-    kKeyMpegUserData      = 'mpud', // size_t[]
-
-    // Size of NALU length in mkv/mp4
-    kKeyNalLengthSize     = 'nals', // int32_t
-
-    // HDR related
-    kKeyHdrStaticInfo    = 'hdrS', // HDRStaticInfo
-
-    // color aspects
-    kKeyColorRange       = 'cRng', // int32_t, color range, value defined by ColorAspects.Range
-    kKeyColorPrimaries   = 'cPrm', // int32_t,
-                                   // color Primaries, value defined by ColorAspects.Primaries
-    kKeyTransferFunction = 'tFun', // int32_t,
-                                   // transfer Function, value defined by ColorAspects.Transfer.
-    kKeyColorMatrix      = 'cMtx', // int32_t,
-                                   // color Matrix, value defined by ColorAspects.MatrixCoeffs.
-    kKeyTemporalLayerId  = 'iLyr', // int32_t, temporal layer-id. 0-based (0 => base layer)
-    kKeyTemporalLayerCount = 'cLyr', // int32_t, number of temporal layers encoded
-
-    kKeyGridWidth        = 'grdW', // int32_t, HEIF grid width
-    kKeyGridHeight       = 'grdH', // int32_t, HEIF grid height
-    kKeyGridRows         = 'grdR', // int32_t, HEIF grid rows
-    kKeyGridCols         = 'grdC', // int32_t, HEIF grid columns
-    kKeyIccProfile       = 'prof', // raw data, ICC prifile data
-    kKeyIsPrimaryImage   = 'prim', // bool (int32_t), image track is the primary image
-    kKeyFrameCount       = 'nfrm', // int32_t, total number of frame in video track
-};
-
-enum {
-    kTypeESDS        = 'esds',
-    kTypeAVCC        = 'avcc',
-    kTypeHVCC        = 'hvcc',
-    kTypeD263        = 'd263',
-};
-
-class MetaData final : public RefBase {
+class MetaData final : public MetaDataBase, public RefBase {
 public:
     MetaData();
     MetaData(const MetaData &from);
-
-    enum Type {
-        TYPE_NONE     = 'none',
-        TYPE_C_STRING = 'cstr',
-        TYPE_INT32    = 'in32',
-        TYPE_INT64    = 'in64',
-        TYPE_FLOAT    = 'floa',
-        TYPE_POINTER  = 'ptr ',
-        TYPE_RECT     = 'rect',
-    };
-
-    void clear();
-    bool remove(uint32_t key);
-
-    bool setCString(uint32_t key, const char *value);
-    bool setInt32(uint32_t key, int32_t value);
-    bool setInt64(uint32_t key, int64_t value);
-    bool setFloat(uint32_t key, float value);
-    bool setPointer(uint32_t key, void *value);
-
-    bool setRect(
-            uint32_t key,
-            int32_t left, int32_t top,
-            int32_t right, int32_t bottom);
-
-    bool findCString(uint32_t key, const char **value) const;
-    bool findInt32(uint32_t key, int32_t *value) const;
-    bool findInt64(uint32_t key, int64_t *value) const;
-    bool findFloat(uint32_t key, float *value) const;
-    bool findPointer(uint32_t key, void **value) const;
-
-    bool findRect(
-            uint32_t key,
-            int32_t *left, int32_t *top,
-            int32_t *right, int32_t *bottom) const;
-
-    bool setData(uint32_t key, uint32_t type, const void *data, size_t size);
-
-    bool findData(uint32_t key, uint32_t *type,
-                  const void **data, size_t *size) const;
-
-    bool hasData(uint32_t key) const;
-
-    String8 toString() const;
-    void dumpToLog() const;
+    MetaData(const MetaDataBase &from);
 
 protected:
     virtual ~MetaData();
 
 private:
-    friend class BpMediaSource;
     friend class BnMediaSource;
+    friend class BpMediaSource;
     friend class BpMediaExtractor;
-    friend class BnMediaExtractor;
-
-    status_t writeToParcel(Parcel &parcel);
-    status_t updateFromParcel(const Parcel &parcel);
     static sp<MetaData> createFromParcel(const Parcel &parcel);
-    struct typed_data;
-    struct Rect;
-    struct MetaDataInternal;
-    MetaDataInternal *mInternalData;
 };
 
 }  // namespace android
diff --git a/media/libmediaextractor/include/media/stagefright/MetaDataBase.h b/media/libmediaextractor/include/media/stagefright/MetaDataBase.h
new file mode 100644
index 0000000..6010af4
--- /dev/null
+++ b/media/libmediaextractor/include/media/stagefright/MetaDataBase.h
@@ -0,0 +1,301 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef META_DATA_BASE_H_
+
+#define META_DATA_BASE_H_
+
+#include <sys/types.h>
+
+#include <stdint.h>
+
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+
+namespace android {
+
+// The following keys map to int32_t data unless indicated otherwise.
+enum {
+    kKeyMIMEType          = 'mime',  // cstring
+    kKeyWidth             = 'widt',  // int32_t, image pixel
+    kKeyHeight            = 'heig',  // int32_t, image pixel
+    kKeyDisplayWidth      = 'dWid',  // int32_t, display/presentation
+    kKeyDisplayHeight     = 'dHgt',  // int32_t, display/presentation
+    kKeySARWidth          = 'sarW',  // int32_t, sampleAspectRatio width
+    kKeySARHeight         = 'sarH',  // int32_t, sampleAspectRatio height
+    kKeyThumbnailWidth    = 'thbW',  // int32_t, thumbnail width
+    kKeyThumbnailHeight   = 'thbH',  // int32_t, thumbnail height
+
+    // a rectangle, if absent assumed to be (0, 0, width - 1, height - 1)
+    kKeyCropRect          = 'crop',
+
+    kKeyRotation          = 'rotA',  // int32_t (angle in degrees)
+    kKeyIFramesInterval   = 'ifiv',  // int32_t
+    kKeyStride            = 'strd',  // int32_t
+    kKeySliceHeight       = 'slht',  // int32_t
+    kKeyChannelCount      = '#chn',  // int32_t
+    kKeyChannelMask       = 'chnm',  // int32_t
+    kKeySampleRate        = 'srte',  // int32_t (audio sampling rate Hz)
+    kKeyPcmEncoding       = 'PCMe',  // int32_t (audio encoding enum)
+    kKeyFrameRate         = 'frmR',  // int32_t (video frame rate fps)
+    kKeyBitRate           = 'brte',  // int32_t (bps)
+    kKeyMaxBitRate        = 'mxBr',  // int32_t (bps)
+    kKeyStreamHeader      = 'stHd',  // raw data
+    kKeyESDS              = 'esds',  // raw data
+    kKeyAACProfile        = 'aacp',  // int32_t
+    kKeyAVCC              = 'avcc',  // raw data
+    kKeyHVCC              = 'hvcc',  // raw data
+    kKeyThumbnailHVCC     = 'thvc',  // raw data
+    kKeyD263              = 'd263',  // raw data
+    kKeyVorbisInfo        = 'vinf',  // raw data
+    kKeyVorbisBooks       = 'vboo',  // raw data
+    kKeyOpusHeader        = 'ohdr',  // raw data
+    kKeyOpusCodecDelay    = 'ocod',  // uint64_t (codec delay in ns)
+    kKeyOpusSeekPreRoll   = 'ospr',  // uint64_t (seek preroll in ns)
+    kKeyFlacMetadata      = 'flMd',  // raw data
+    kKeyVp9CodecPrivate   = 'vp9p',  // raw data (vp9 csd information)
+    kKeyWantsNALFragments = 'NALf',
+    kKeyIsSyncFrame       = 'sync',  // int32_t (bool)
+    kKeyIsCodecConfig     = 'conf',  // int32_t (bool)
+    kKeyTime              = 'time',  // int64_t (usecs)
+    kKeyDecodingTime      = 'decT',  // int64_t (decoding timestamp in usecs)
+    kKeyNTPTime           = 'ntpT',  // uint64_t (ntp-timestamp)
+    kKeyTargetTime        = 'tarT',  // int64_t (usecs)
+    kKeyDriftTime         = 'dftT',  // int64_t (usecs)
+    kKeyAnchorTime        = 'ancT',  // int64_t (usecs)
+    kKeyDuration          = 'dura',  // int64_t (usecs)
+    kKeyPixelFormat       = 'pixf',  // int32_t
+    kKeyColorFormat       = 'colf',  // int32_t
+    kKeyColorSpace        = 'cols',  // int32_t
+    kKeyPlatformPrivate   = 'priv',  // pointer
+    kKeyDecoderComponent  = 'decC',  // cstring
+    kKeyBufferID          = 'bfID',
+    kKeyMaxInputSize      = 'inpS',
+    kKeyMaxWidth          = 'maxW',
+    kKeyMaxHeight         = 'maxH',
+    kKeyThumbnailTime     = 'thbT',  // int64_t (usecs)
+    kKeyTrackID           = 'trID',
+    kKeyIsDRM             = 'idrm',  // int32_t (bool)
+    kKeyEncoderDelay      = 'encd',  // int32_t (frames)
+    kKeyEncoderPadding    = 'encp',  // int32_t (frames)
+
+    kKeyAlbum             = 'albu',  // cstring
+    kKeyArtist            = 'arti',  // cstring
+    kKeyAlbumArtist       = 'aart',  // cstring
+    kKeyComposer          = 'comp',  // cstring
+    kKeyGenre             = 'genr',  // cstring
+    kKeyTitle             = 'titl',  // cstring
+    kKeyYear              = 'year',  // cstring
+    kKeyAlbumArt          = 'albA',  // compressed image data
+    kKeyAlbumArtMIME      = 'alAM',  // cstring
+    kKeyAuthor            = 'auth',  // cstring
+    kKeyCDTrackNumber     = 'cdtr',  // cstring
+    kKeyDiscNumber        = 'dnum',  // cstring
+    kKeyDate              = 'date',  // cstring
+    kKeyWriter            = 'writ',  // cstring
+    kKeyCompilation       = 'cpil',  // cstring
+    kKeyLocation          = 'loc ',  // cstring
+    kKeyTimeScale         = 'tmsl',  // int32_t
+    kKeyCaptureFramerate  = 'capF',  // float (capture fps)
+
+    // video profile and level
+    kKeyVideoProfile      = 'vprf',  // int32_t
+    kKeyVideoLevel        = 'vlev',  // int32_t
+
+    // Set this key to enable authoring files in 64-bit offset
+    kKey64BitFileOffset   = 'fobt',  // int32_t (bool)
+    kKey2ByteNalLength    = '2NAL',  // int32_t (bool)
+
+    // Identify the file output format for authoring
+    // Please see <media/mediarecorder.h> for the supported
+    // file output formats.
+    kKeyFileType          = 'ftyp',  // int32_t
+
+    // Track authoring progress status
+    // kKeyTrackTimeStatus is used to track progress in elapsed time
+    kKeyTrackTimeStatus   = 'tktm',  // int64_t
+
+    kKeyRealTimeRecording = 'rtrc',  // bool (int32_t)
+    kKeyNumBuffers        = 'nbbf',  // int32_t
+
+    // Ogg files can be tagged to be automatically looping...
+    kKeyAutoLoop          = 'autL',  // bool (int32_t)
+
+    kKeyValidSamples      = 'valD',  // int32_t
+
+    kKeyIsUnreadable      = 'unre',  // bool (int32_t)
+
+    // An indication that a video buffer has been rendered.
+    kKeyRendered          = 'rend',  // bool (int32_t)
+
+    // The language code for this media
+    kKeyMediaLanguage     = 'lang',  // cstring
+
+    // To store the timed text format data
+    kKeyTextFormatData    = 'text',  // raw data
+
+    kKeyRequiresSecureBuffers = 'secu',  // bool (int32_t)
+
+    kKeyIsADTS            = 'adts',  // bool (int32_t)
+    kKeyAACAOT            = 'aaot',  // int32_t
+
+    // If a MediaBuffer's data represents (at least partially) encrypted
+    // data, the following fields aid in decryption.
+    // The data can be thought of as pairs of plain and encrypted data
+    // fragments, i.e. plain and encrypted data alternate.
+    // The first fragment is by convention plain data (if that's not the
+    // case, simply specify plain fragment size of 0).
+    // kKeyEncryptedSizes and kKeyPlainSizes each map to an array of
+    // size_t values. The sum total of all size_t values of both arrays
+    // must equal the amount of data (i.e. MediaBuffer's range_length()).
+    // If both arrays are present, they must be of the same size.
+    // If only encrypted sizes are present it is assumed that all
+    // plain sizes are 0, i.e. all fragments are encrypted.
+    // To programmatically set these array, use the MetaDataBase::setData API, i.e.
+    // const size_t encSizes[];
+    // meta->setData(
+    //  kKeyEncryptedSizes, 0 /* type */, encSizes, sizeof(encSizes));
+    // A plain sizes array by itself makes no sense.
+    kKeyEncryptedSizes    = 'encr',  // size_t[]
+    kKeyPlainSizes        = 'plai',  // size_t[]
+    kKeyCryptoKey         = 'cryK',  // uint8_t[16]
+    kKeyCryptoIV          = 'cryI',  // uint8_t[16]
+    kKeyCryptoMode        = 'cryM',  // int32_t
+
+    kKeyCryptoDefaultIVSize = 'cryS',  // int32_t
+
+    kKeyPssh              = 'pssh',  // raw data
+    kKeyCASystemID        = 'caid',  // int32_t
+    kKeyCASessionID       = 'seid',  // raw data
+
+    // Please see MediaFormat.KEY_IS_AUTOSELECT.
+    kKeyTrackIsAutoselect = 'auto', // bool (int32_t)
+    // Please see MediaFormat.KEY_IS_DEFAULT.
+    kKeyTrackIsDefault    = 'dflt', // bool (int32_t)
+    // Similar to MediaFormat.KEY_IS_FORCED_SUBTITLE but pertains to av tracks as well.
+    kKeyTrackIsForced     = 'frcd', // bool (int32_t)
+
+    // H264 supplemental enhancement information offsets/sizes
+    kKeySEI               = 'sei ', // raw data
+
+    // MPEG user data offsets
+    kKeyMpegUserData      = 'mpud', // size_t[]
+
+    // Size of NALU length in mkv/mp4
+    kKeyNalLengthSize     = 'nals', // int32_t
+
+    // HDR related
+    kKeyHdrStaticInfo    = 'hdrS', // HDRStaticInfo
+
+    // color aspects
+    kKeyColorRange       = 'cRng', // int32_t, color range, value defined by ColorAspects.Range
+    kKeyColorPrimaries   = 'cPrm', // int32_t,
+                                   // color Primaries, value defined by ColorAspects.Primaries
+    kKeyTransferFunction = 'tFun', // int32_t,
+                                   // transfer Function, value defined by ColorAspects.Transfer.
+    kKeyColorMatrix      = 'cMtx', // int32_t,
+                                   // color Matrix, value defined by ColorAspects.MatrixCoeffs.
+    kKeyTemporalLayerId  = 'iLyr', // int32_t, temporal layer-id. 0-based (0 => base layer)
+    kKeyTemporalLayerCount = 'cLyr', // int32_t, number of temporal layers encoded
+
+    kKeyGridWidth        = 'grdW', // int32_t, HEIF grid width
+    kKeyGridHeight       = 'grdH', // int32_t, HEIF grid height
+    kKeyGridRows         = 'grdR', // int32_t, HEIF grid rows
+    kKeyGridCols         = 'grdC', // int32_t, HEIF grid columns
+    kKeyIccProfile       = 'prof', // raw data, ICC prifile data
+    kKeyIsPrimaryImage   = 'prim', // bool (int32_t), image track is the primary image
+    kKeyFrameCount       = 'nfrm', // int32_t, total number of frame in video track
+};
+
+enum {
+    kTypeESDS        = 'esds',
+    kTypeAVCC        = 'avcc',
+    kTypeHVCC        = 'hvcc',
+    kTypeD263        = 'd263',
+};
+
+class Parcel;
+
+class MetaDataBase {
+public:
+    MetaDataBase();
+    MetaDataBase(const MetaDataBase &from);
+    MetaDataBase& operator = (const MetaDataBase &);
+
+    virtual ~MetaDataBase();
+
+    enum Type {
+        TYPE_NONE     = 'none',
+        TYPE_C_STRING = 'cstr',
+        TYPE_INT32    = 'in32',
+        TYPE_INT64    = 'in64',
+        TYPE_FLOAT    = 'floa',
+        TYPE_POINTER  = 'ptr ',
+        TYPE_RECT     = 'rect',
+    };
+
+    void clear();
+    bool remove(uint32_t key);
+
+    bool setCString(uint32_t key, const char *value);
+    bool setInt32(uint32_t key, int32_t value);
+    bool setInt64(uint32_t key, int64_t value);
+    bool setFloat(uint32_t key, float value);
+    bool setPointer(uint32_t key, void *value);
+
+    bool setRect(
+            uint32_t key,
+            int32_t left, int32_t top,
+            int32_t right, int32_t bottom);
+
+    bool findCString(uint32_t key, const char **value) const;
+    bool findInt32(uint32_t key, int32_t *value) const;
+    bool findInt64(uint32_t key, int64_t *value) const;
+    bool findFloat(uint32_t key, float *value) const;
+    bool findPointer(uint32_t key, void **value) const;
+
+    bool findRect(
+            uint32_t key,
+            int32_t *left, int32_t *top,
+            int32_t *right, int32_t *bottom) const;
+
+    bool setData(uint32_t key, uint32_t type, const void *data, size_t size);
+
+    bool findData(uint32_t key, uint32_t *type,
+                  const void **data, size_t *size) const;
+
+    bool hasData(uint32_t key) const;
+
+    String8 toString() const;
+    void dumpToLog() const;
+
+private:
+    friend class BpMediaSource;
+    friend class BnMediaSource;
+    friend class BnMediaExtractor;
+    friend class MetaData;
+
+    struct typed_data;
+    struct Rect;
+    struct MetaDataInternal;
+    MetaDataInternal *mInternalData;
+    status_t writeToParcel(Parcel &parcel);
+    status_t updateFromParcel(const Parcel &parcel);
+};
+
+}  // namespace android
+
+#endif  // META_DATA_H_
diff --git a/media/libmediaplayer2/nuplayer2/GenericSource2.cpp b/media/libmediaplayer2/nuplayer2/GenericSource2.cpp
index c34aabb..790581a 100644
--- a/media/libmediaplayer2/nuplayer2/GenericSource2.cpp
+++ b/media/libmediaplayer2/nuplayer2/GenericSource2.cpp
@@ -35,6 +35,7 @@
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/DataSourceFactory.h>
+#include <media/stagefright/FileSource.h>
 #include <media/stagefright/InterfaceUtils.h>
 #include <media/stagefright/MediaBuffer.h>
 #include <media/stagefright/MediaClock.h>
@@ -161,30 +162,15 @@
 
 status_t NuPlayer2::GenericSource2::initFromDataSource() {
     sp<IMediaExtractor> extractor;
-    CHECK(mDataSource != NULL || mFd != -1);
+    CHECK(mDataSource != NULL);
     sp<DataSource> dataSource = mDataSource;
-    const int fd = mFd;
-    const int64_t offset = mOffset;
-    const int64_t length = mLength;
 
     mLock.unlock();
     // This might take long time if data source is not reliable.
-    if (dataSource != nullptr) {
-        extractor = MediaExtractorFactory::Create(dataSource, NULL /* mime */);
-    } else {
-        extractor = MediaExtractorFactory::CreateFromFd(
-                fd, offset, length, NULL /* mime */, &dataSource);
-    }
-
-    if (dataSource == nullptr) {
-        ALOGE("initFromDataSource, failed to create data source!");
-        mLock.lock();
-        return UNKNOWN_ERROR;
-    }
+    extractor = MediaExtractorFactory::Create(dataSource, NULL);
 
     if (extractor == NULL) {
         ALOGE("initFromDataSource, cannot create extractor!");
-        mLock.lock();
         return UNKNOWN_ERROR;
     }
 
@@ -193,13 +179,10 @@
     size_t numtracks = extractor->countTracks();
     if (numtracks == 0) {
         ALOGE("initFromDataSource, source has no track!");
-        mLock.lock();
         return UNKNOWN_ERROR;
     }
 
     mLock.lock();
-    mFd = -1;
-    mDataSource = dataSource;
     mFileMeta = fileMeta;
     if (mFileMeta != NULL) {
         int64_t duration;
@@ -408,16 +391,51 @@
             if (!mDisconnected) {
                 mDataSource = dataSource;
             }
+        } else {
+            if (property_get_bool("media.stagefright.extractremote", true) &&
+                    !FileSource::requiresDrm(mFd, mOffset, mLength, nullptr /* mime */)) {
+                sp<IBinder> binder =
+                        defaultServiceManager()->getService(String16("media.extractor"));
+                if (binder != nullptr) {
+                    ALOGD("FileSource remote");
+                    sp<IMediaExtractorService> mediaExService(
+                            interface_cast<IMediaExtractorService>(binder));
+                    sp<IDataSource> source =
+                            mediaExService->makeIDataSource(mFd, mOffset, mLength);
+                    ALOGV("IDataSource(FileSource): %p %d %lld %lld",
+                            source.get(), mFd, (long long)mOffset, (long long)mLength);
+                    if (source.get() != nullptr) {
+                        mDataSource = CreateDataSourceFromIDataSource(source);
+                        if (mDataSource != nullptr) {
+                            // Close the local file descriptor as it is not needed anymore.
+                            close(mFd);
+                            mFd = -1;
+                        }
+                    } else {
+                        ALOGW("extractor service cannot make data source");
+                    }
+                } else {
+                    ALOGW("extractor service not running");
+                }
+            }
+            if (mDataSource == nullptr) {
+                ALOGD("FileSource local");
+                mDataSource = new FileSource(mFd, mOffset, mLength);
+            }
+            // TODO: close should always be done on mFd, see the lines following
+            // CreateDataSourceFromIDataSource above,
+            // and the FileSource constructor should dup the mFd argument as needed.
+            mFd = -1;
         }
 
-        if (mFd == -1 && mDataSource == NULL) {
+        if (mDataSource == NULL) {
             ALOGE("Failed to create data source!");
             notifyPreparedAndCleanup(UNKNOWN_ERROR);
             return;
         }
     }
 
-    if (mDataSource != nullptr && mDataSource->flags() & DataSource::kIsCachingDataSource) {
+    if (mDataSource->flags() & DataSource::kIsCachingDataSource) {
         mCachedSource = static_cast<NuCachedSource2 *>(mDataSource.get());
     }
 
@@ -1187,7 +1205,7 @@
 
     if (audio && mAudioIsVorbis) {
         int32_t numPageSamples;
-        if (!mb->meta_data()->findInt32(kKeyValidSamples, &numPageSamples)) {
+        if (!mb->meta_data().findInt32(kKeyValidSamples, &numPageSamples)) {
             numPageSamples = -1;
         }
 
@@ -1198,12 +1216,12 @@
     sp<AMessage> meta = ab->meta();
 
     int64_t timeUs;
-    CHECK(mb->meta_data()->findInt64(kKeyTime, &timeUs));
+    CHECK(mb->meta_data().findInt64(kKeyTime, &timeUs));
     meta->setInt64("timeUs", timeUs);
 
     if (trackType == MEDIA_TRACK_TYPE_VIDEO) {
         int32_t layerId;
-        if (mb->meta_data()->findInt32(kKeyTemporalLayerId, &layerId)) {
+        if (mb->meta_data().findInt32(kKeyTemporalLayerId, &layerId)) {
             meta->setInt32("temporal-layer-id", layerId);
         }
     }
@@ -1216,7 +1234,7 @@
     }
 
     int64_t durationUs;
-    if (mb->meta_data()->findInt64(kKeyDuration, &durationUs)) {
+    if (mb->meta_data().findInt64(kKeyDuration, &durationUs)) {
         meta->setInt64("durationUs", durationUs);
     }
 
@@ -1227,14 +1245,14 @@
     uint32_t dataType; // unused
     const void *seiData;
     size_t seiLength;
-    if (mb->meta_data()->findData(kKeySEI, &dataType, &seiData, &seiLength)) {
+    if (mb->meta_data().findData(kKeySEI, &dataType, &seiData, &seiLength)) {
         sp<ABuffer> sei = ABuffer::CreateAsCopy(seiData, seiLength);;
         meta->setBuffer("sei", sei);
     }
 
     const void *mpegUserDataPointer;
     size_t mpegUserDataLength;
-    if (mb->meta_data()->findData(
+    if (mb->meta_data().findData(
             kKeyMpegUserData, &dataType, &mpegUserDataPointer, &mpegUserDataLength)) {
         sp<ABuffer> mpegUserData = ABuffer::CreateAsCopy(mpegUserDataPointer, mpegUserDataLength);
         meta->setBuffer("mpegUserData", mpegUserData);
@@ -1366,8 +1384,8 @@
         for (; id < count; ++id) {
             int64_t timeUs;
             MediaBufferBase *mbuf = mediaBuffers[id];
-            if (!mbuf->meta_data()->findInt64(kKeyTime, &timeUs)) {
-                mbuf->meta_data()->dumpToLog();
+            if (!mbuf->meta_data().findInt64(kKeyTime, &timeUs)) {
+                mbuf->meta_data().dumpToLog();
                 track->mPackets->signalEOS(ERROR_MALFORMED);
                 break;
             }
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2Decoder.cpp b/media/libmediaplayer2/nuplayer2/NuPlayer2Decoder.cpp
index c49bccb..645138a 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2Decoder.cpp
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2Decoder.cpp
@@ -1091,7 +1091,7 @@
                     codecBuffer->setRange(0, mediaBuf->size());
                     memcpy(codecBuffer->data(), mediaBuf->data(), mediaBuf->size());
 
-                    sp<MetaData> meta_data = mediaBuf->meta_data();
+                    MetaDataBase &meta_data = mediaBuf->meta_data();
                     cryptInfo = AMediaCodecCryptoInfoWrapper::Create(meta_data);
                 } else { // No mediaBuf
                     ALOGE("onInputBufferFetched: buffer->data()/mediaBuf are NULL for %p",
diff --git a/media/libmediaplayerservice/nuplayer/GenericSource.cpp b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
index b0c82f2..e7c3deb 100644
--- a/media/libmediaplayerservice/nuplayer/GenericSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
@@ -27,6 +27,7 @@
 #include <media/MediaBufferHolder.h>
 #include <media/MediaExtractor.h>
 #include <media/MediaSource.h>
+#include <media/IMediaExtractorService.h>
 #include <media/IMediaHTTPService.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
@@ -161,30 +162,15 @@
 
 status_t NuPlayer::GenericSource::initFromDataSource() {
     sp<IMediaExtractor> extractor;
-    CHECK(mDataSource != NULL || mFd != -1);
+    CHECK(mDataSource != NULL);
     sp<DataSource> dataSource = mDataSource;
-    const int fd = mFd;
-    const int64_t offset = mOffset;
-    const int64_t length = mLength;
 
     mLock.unlock();
     // This might take long time if data source is not reliable.
-    if (dataSource != nullptr) {
-        extractor = MediaExtractorFactory::Create(dataSource, NULL /* mime */);
-    } else {
-        extractor = MediaExtractorFactory::CreateFromFd(
-                fd, offset, length, NULL /* mime */, &dataSource);
-    }
-
-    if (dataSource == nullptr) {
-        ALOGE("initFromDataSource, failed to create data source!");
-        mLock.lock();
-        return UNKNOWN_ERROR;
-    }
+    extractor = MediaExtractorFactory::Create(dataSource, NULL);
 
     if (extractor == NULL) {
         ALOGE("initFromDataSource, cannot create extractor!");
-        mLock.lock();
         return UNKNOWN_ERROR;
     }
 
@@ -193,13 +179,10 @@
     size_t numtracks = extractor->countTracks();
     if (numtracks == 0) {
         ALOGE("initFromDataSource, source has no track!");
-        mLock.lock();
         return UNKNOWN_ERROR;
     }
 
     mLock.lock();
-    mFd = -1;
-    mDataSource = dataSource;
     mFileMeta = fileMeta;
     if (mFileMeta != NULL) {
         int64_t duration;
@@ -403,15 +386,51 @@
             if (!mDisconnected) {
                 mDataSource = dataSource;
             }
+        } else {
+            if (property_get_bool("media.stagefright.extractremote", true) &&
+                    !FileSource::requiresDrm(mFd, mOffset, mLength, nullptr /* mime */)) {
+                sp<IBinder> binder =
+                        defaultServiceManager()->getService(String16("media.extractor"));
+                if (binder != nullptr) {
+                    ALOGD("FileSource remote");
+                    sp<IMediaExtractorService> mediaExService(
+                            interface_cast<IMediaExtractorService>(binder));
+                    sp<IDataSource> source =
+                            mediaExService->makeIDataSource(mFd, mOffset, mLength);
+                    ALOGV("IDataSource(FileSource): %p %d %lld %lld",
+                            source.get(), mFd, (long long)mOffset, (long long)mLength);
+                    if (source.get() != nullptr) {
+                        mDataSource = CreateDataSourceFromIDataSource(source);
+                        if (mDataSource != nullptr) {
+                            // Close the local file descriptor as it is not needed anymore.
+                            close(mFd);
+                            mFd = -1;
+                        }
+                    } else {
+                        ALOGW("extractor service cannot make data source");
+                    }
+                } else {
+                    ALOGW("extractor service not running");
+                }
+            }
+            if (mDataSource == nullptr) {
+                ALOGD("FileSource local");
+                mDataSource = new FileSource(mFd, mOffset, mLength);
+            }
+            // TODO: close should always be done on mFd, see the lines following
+            // CreateDataSourceFromIDataSource above,
+            // and the FileSource constructor should dup the mFd argument as needed.
+            mFd = -1;
         }
-        if (mFd == -1 && mDataSource == NULL) {
+
+        if (mDataSource == NULL) {
             ALOGE("Failed to create data source!");
             notifyPreparedAndCleanup(UNKNOWN_ERROR);
             return;
         }
     }
 
-    if (mDataSource != nullptr && mDataSource->flags() & DataSource::kIsCachingDataSource) {
+    if (mDataSource->flags() & DataSource::kIsCachingDataSource) {
         mCachedSource = static_cast<NuCachedSource2 *>(mDataSource.get());
     }
 
@@ -1180,7 +1199,7 @@
 
     if (audio && mAudioIsVorbis) {
         int32_t numPageSamples;
-        if (!mb->meta_data()->findInt32(kKeyValidSamples, &numPageSamples)) {
+        if (!mb->meta_data().findInt32(kKeyValidSamples, &numPageSamples)) {
             numPageSamples = -1;
         }
 
@@ -1191,12 +1210,12 @@
     sp<AMessage> meta = ab->meta();
 
     int64_t timeUs;
-    CHECK(mb->meta_data()->findInt64(kKeyTime, &timeUs));
+    CHECK(mb->meta_data().findInt64(kKeyTime, &timeUs));
     meta->setInt64("timeUs", timeUs);
 
     if (trackType == MEDIA_TRACK_TYPE_VIDEO) {
         int32_t layerId;
-        if (mb->meta_data()->findInt32(kKeyTemporalLayerId, &layerId)) {
+        if (mb->meta_data().findInt32(kKeyTemporalLayerId, &layerId)) {
             meta->setInt32("temporal-layer-id", layerId);
         }
     }
@@ -1209,7 +1228,7 @@
     }
 
     int64_t durationUs;
-    if (mb->meta_data()->findInt64(kKeyDuration, &durationUs)) {
+    if (mb->meta_data().findInt64(kKeyDuration, &durationUs)) {
         meta->setInt64("durationUs", durationUs);
     }
 
@@ -1220,14 +1239,14 @@
     uint32_t dataType; // unused
     const void *seiData;
     size_t seiLength;
-    if (mb->meta_data()->findData(kKeySEI, &dataType, &seiData, &seiLength)) {
+    if (mb->meta_data().findData(kKeySEI, &dataType, &seiData, &seiLength)) {
         sp<ABuffer> sei = ABuffer::CreateAsCopy(seiData, seiLength);;
         meta->setBuffer("sei", sei);
     }
 
     const void *mpegUserDataPointer;
     size_t mpegUserDataLength;
-    if (mb->meta_data()->findData(
+    if (mb->meta_data().findData(
             kKeyMpegUserData, &dataType, &mpegUserDataPointer, &mpegUserDataLength)) {
         sp<ABuffer> mpegUserData = ABuffer::CreateAsCopy(mpegUserDataPointer, mpegUserDataLength);
         meta->setBuffer("mpegUserData", mpegUserData);
@@ -1359,8 +1378,8 @@
         for (; id < count; ++id) {
             int64_t timeUs;
             MediaBufferBase *mbuf = mediaBuffers[id];
-            if (!mbuf->meta_data()->findInt64(kKeyTime, &timeUs)) {
-                mbuf->meta_data()->dumpToLog();
+            if (!mbuf->meta_data().findInt64(kKeyTime, &timeUs)) {
+                mbuf->meta_data().dumpToLog();
                 track->mPackets->signalEOS(ERROR_MALFORMED);
                 break;
             }
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
index 88594d2..2a08f62 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
@@ -1071,7 +1071,7 @@
                     codecBuffer->setRange(0, mediaBuf->size());
                     memcpy(codecBuffer->data(), mediaBuf->data(), mediaBuf->size());
 
-                    sp<MetaData> meta_data = mediaBuf->meta_data();
+                    MetaDataBase &meta_data = mediaBuf->meta_data();
                     cryptInfo = NuPlayerDrm::getSampleCryptoInfo(meta_data);
                 } else { // No mediaBuf
                     ALOGE("onInputBufferFetched: buffer->data()/mediaBuf are NULL for %p",
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDrm.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDrm.cpp
index b7c9db7..165e483 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDrm.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDrm.cpp
@@ -265,18 +265,13 @@
     return ret;
 }
 
-NuPlayerDrm::CryptoInfo *NuPlayerDrm::getSampleCryptoInfo(sp<MetaData> meta)
+NuPlayerDrm::CryptoInfo *NuPlayerDrm::getSampleCryptoInfo(MetaDataBase &meta)
 {
     uint32_t type;
     const void *crypteddata;
     size_t cryptedsize;
 
-    if (meta == NULL) {
-        ALOGE("getSampleCryptoInfo: Unexpected. No meta data for sample.");
-        return NULL;
-    }
-
-    if (!meta->findData(kKeyEncryptedSizes, &type, &crypteddata, &cryptedsize)) {
+    if (!meta.findData(kKeyEncryptedSizes, &type, &crypteddata, &cryptedsize)) {
         return NULL;
     }
     size_t numSubSamples = cryptedsize / sizeof(size_t);
@@ -288,7 +283,7 @@
 
     const void *cleardata;
     size_t clearsize;
-    if (meta->findData(kKeyPlainSizes, &type, &cleardata, &clearsize)) {
+    if (meta.findData(kKeyPlainSizes, &type, &cleardata, &clearsize)) {
         if (clearsize != cryptedsize) {
             // The two must be of the same length.
             ALOGE("getSampleCryptoInfo mismatch cryptedsize: %zu != clearsize: %zu",
@@ -299,7 +294,7 @@
 
     const void *key;
     size_t keysize;
-    if (meta->findData(kKeyCryptoKey, &type, &key, &keysize)) {
+    if (meta.findData(kKeyCryptoKey, &type, &key, &keysize)) {
         if (keysize != kBlockSize) {
             ALOGE("getSampleCryptoInfo Keys must be %d bytes in length: %zu",
                     kBlockSize, keysize);
@@ -310,7 +305,7 @@
 
     const void *iv;
     size_t ivsize;
-    if (meta->findData(kKeyCryptoIV, &type, &iv, &ivsize)) {
+    if (meta.findData(kKeyCryptoIV, &type, &iv, &ivsize)) {
         if (ivsize != kBlockSize) {
             ALOGE("getSampleCryptoInfo IV must be %d bytes in length: %zu",
                     kBlockSize, ivsize);
@@ -320,7 +315,7 @@
     }
 
     int32_t mode;
-    if (!meta->findInt32(kKeyCryptoMode, &mode)) {
+    if (!meta.findInt32(kKeyCryptoMode, &mode)) {
         mode = CryptoPlugin::kMode_AES_CTR;
     }
 
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDrm.h b/media/libmediaplayerservice/nuplayer/NuPlayerDrm.h
index 6b8a2d9..50f69ff 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDrm.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDrm.h
@@ -109,7 +109,7 @@
                 size_t *clearbytes,
                 size_t *encryptedbytes);
 
-        static CryptoInfo *getSampleCryptoInfo(sp<MetaData> meta);
+        static CryptoInfo *getSampleCryptoInfo(MetaDataBase &meta);
 
     };  // NuPlayerDrm
 
diff --git a/media/libstagefright/AACWriter.cpp b/media/libstagefright/AACWriter.cpp
index d64138e..2ea5fcd 100644
--- a/media/libstagefright/AACWriter.cpp
+++ b/media/libstagefright/AACWriter.cpp
@@ -316,7 +316,7 @@
         }
 
         int32_t isCodecSpecific = 0;
-        if (buffer->meta_data()->findInt32(kKeyIsCodecConfig, &isCodecSpecific) && isCodecSpecific) {
+        if (buffer->meta_data().findInt32(kKeyIsCodecConfig, &isCodecSpecific) && isCodecSpecific) {
             ALOGV("Drop codec specific info buffer");
             buffer->release();
             buffer = NULL;
@@ -324,7 +324,7 @@
         }
 
         int64_t timestampUs;
-        CHECK(buffer->meta_data()->findInt64(kKeyTime, &timestampUs));
+        CHECK(buffer->meta_data().findInt64(kKeyTime, &timestampUs));
         if (timestampUs > mEstimatedDurationUs) {
             mEstimatedDurationUs = timestampUs;
         }
diff --git a/media/libstagefright/ACodec.cpp b/media/libstagefright/ACodec.cpp
index 6da6c13..b296622 100644
--- a/media/libstagefright/ACodec.cpp
+++ b/media/libstagefright/ACodec.cpp
@@ -6349,90 +6349,54 @@
     Vector<AString> matchingCodecs;
     Vector<AString> owners;
 
-    AString mime;
-
     AString componentName;
-    int32_t encoder = false;
-    if (msg->findString("componentName", &componentName)) {
-        sp<IMediaCodecList> list = MediaCodecList::getInstance();
-        if (list == nullptr) {
-            ALOGE("Unable to obtain MediaCodecList while "
-                    "attempting to create codec \"%s\"",
-                    componentName.c_str());
-            mCodec->signalError(OMX_ErrorUndefined, NO_INIT);
-            return false;
-        }
-        ssize_t index = list->findCodecByName(componentName.c_str());
-        if (index < 0) {
-            ALOGE("Unable to find codec \"%s\"",
-                    componentName.c_str());
-            mCodec->signalError(OMX_ErrorInvalidComponent, NAME_NOT_FOUND);
-            return false;
-        }
-        sp<MediaCodecInfo> info = list->getCodecInfo(index);
-        if (info == nullptr) {
-            ALOGE("Unexpected error (index out-of-bound) while "
-                    "retrieving information for codec \"%s\"",
-                    componentName.c_str());
-            mCodec->signalError(OMX_ErrorUndefined, UNKNOWN_ERROR);
-            return false;
-        }
-        matchingCodecs.add(info->getCodecName());
-        owners.add(info->getOwnerName() == nullptr ?
-                "default" : info->getOwnerName());
-    } else {
-        CHECK(msg->findString("mime", &mime));
+    CHECK(msg->findString("componentName", &componentName));
 
-        if (!msg->findInt32("encoder", &encoder)) {
-            encoder = false;
-        }
-
-        MediaCodecList::findMatchingCodecs(
-                mime.c_str(),
-                encoder, // createEncoder
-                0,       // flags
-                &matchingCodecs,
-                &owners);
+    sp<IMediaCodecList> list = MediaCodecList::getInstance();
+    if (list == nullptr) {
+        ALOGE("Unable to obtain MediaCodecList while "
+                "attempting to create codec \"%s\"",
+                componentName.c_str());
+        mCodec->signalError(OMX_ErrorUndefined, NO_INIT);
+        return false;
     }
+    ssize_t index = list->findCodecByName(componentName.c_str());
+    if (index < 0) {
+        ALOGE("Unable to find codec \"%s\"",
+                componentName.c_str());
+        mCodec->signalError(OMX_ErrorInvalidComponent, NAME_NOT_FOUND);
+        return false;
+    }
+    sp<MediaCodecInfo> info = list->getCodecInfo(index);
+    if (info == nullptr) {
+        ALOGE("Unexpected error (index out-of-bound) while "
+                "retrieving information for codec \"%s\"",
+                componentName.c_str());
+        mCodec->signalError(OMX_ErrorUndefined, UNKNOWN_ERROR);
+        return false;
+    }
+    AString owner = (info->getOwnerName() == nullptr) ? "default" : info->getOwnerName();
 
     sp<CodecObserver> observer = new CodecObserver;
     sp<IOMX> omx;
     sp<IOMXNode> omxNode;
 
     status_t err = NAME_NOT_FOUND;
-    for (size_t matchIndex = 0; matchIndex < matchingCodecs.size();
-            ++matchIndex) {
-        componentName = matchingCodecs[matchIndex];
-
-        OMXClient client;
-        if (client.connect(owners[matchIndex].c_str()) != OK) {
-            mCodec->signalError(OMX_ErrorUndefined, NO_INIT);
-            return false;
-        }
-        omx = client.interface();
-
-        pid_t tid = gettid();
-        int prevPriority = androidGetThreadPriority(tid);
-        androidSetThreadPriority(tid, ANDROID_PRIORITY_FOREGROUND);
-        err = omx->allocateNode(componentName.c_str(), observer, &omxNode);
-        androidSetThreadPriority(tid, prevPriority);
-
-        if (err == OK) {
-            break;
-        } else {
-            ALOGW("Allocating component '%s' failed, try next one.", componentName.c_str());
-        }
-
-        omxNode = NULL;
+    OMXClient client;
+    if (client.connect(owner.c_str()) != OK) {
+        mCodec->signalError(OMX_ErrorUndefined, NO_INIT);
+        return false;
     }
+    omx = client.interface();
 
-    if (omxNode == NULL) {
-        if (!mime.empty()) {
-            ALOGE("Unable to instantiate a %scoder for type '%s' with err %#x.",
-                    encoder ? "en" : "de", mime.c_str(), err);
-        } else {
-            ALOGE("Unable to instantiate codec '%s' with err %#x.", componentName.c_str(), err);
-        }
+    pid_t tid = gettid();
+    int prevPriority = androidGetThreadPriority(tid);
+    androidSetThreadPriority(tid, ANDROID_PRIORITY_FOREGROUND);
+    err = omx->allocateNode(componentName.c_str(), observer, &omxNode);
+    androidSetThreadPriority(tid, prevPriority);
+
+    if (err != OK) {
+        ALOGE("Unable to instantiate codec '%s' with err %#x.", componentName.c_str(), err);
 
         mCodec->signalError((OMX_ERRORTYPE)err, makeNoSideEffectStatus(err));
         return false;
diff --git a/media/libstagefright/AMRWriter.cpp b/media/libstagefright/AMRWriter.cpp
index e33d3da..41106a1 100644
--- a/media/libstagefright/AMRWriter.cpp
+++ b/media/libstagefright/AMRWriter.cpp
@@ -215,7 +215,7 @@
         }
 
         int64_t timestampUs;
-        CHECK(buffer->meta_data()->findInt64(kKeyTime, &timestampUs));
+        CHECK(buffer->meta_data().findInt64(kKeyTime, &timestampUs));
         if (timestampUs > mEstimatedDurationUs) {
             mEstimatedDurationUs = timestampUs;
         }
diff --git a/media/libstagefright/Android.bp b/media/libstagefright/Android.bp
index e704c88..65348e5 100644
--- a/media/libstagefright/Android.bp
+++ b/media/libstagefright/Android.bp
@@ -63,6 +63,7 @@
         "C2OMXNode.cpp",
         "CCodec.cpp",
         "CCodecBufferChannel.cpp",
+        "Codec2InfoBuilder.cpp",
         "CodecBase.cpp",
         "CallbackDataSource.cpp",
         "CallbackMediaSource.cpp",
diff --git a/media/libstagefright/AudioPlayer.cpp b/media/libstagefright/AudioPlayer.cpp
index 16ea5b5..a6f0a0b 100644
--- a/media/libstagefright/AudioPlayer.cpp
+++ b/media/libstagefright/AudioPlayer.cpp
@@ -543,7 +543,7 @@
             }
 
             if(mInputBuffer->range_length() != 0) {
-                CHECK(mInputBuffer->meta_data()->findInt64(
+                CHECK(mInputBuffer->meta_data().findInt64(
                         kKeyTime, &mPositionTimeMediaUs));
             }
 
diff --git a/media/libstagefright/AudioSource.cpp b/media/libstagefright/AudioSource.cpp
index d854582..2ae3218 100644
--- a/media/libstagefright/AudioSource.cpp
+++ b/media/libstagefright/AudioSource.cpp
@@ -265,7 +265,7 @@
 
     // Mute/suppress the recording sound
     int64_t timeUs;
-    CHECK(buffer->meta_data()->findInt64(kKeyTime, &timeUs));
+    CHECK(buffer->meta_data().findInt64(kKeyTime, &timeUs));
     int64_t elapsedTimeUs = timeUs - mStartTimeUs;
     if (elapsedTimeUs < kAutoRampStartUs) {
         memset((uint8_t *) buffer->data(), 0, buffer->range_length());
@@ -289,7 +289,7 @@
 
     if (mSampleRate != mOutSampleRate) {
             timeUs *= (int64_t)mSampleRate / (int64_t)mOutSampleRate;
-            buffer->meta_data()->setInt64(kKeyTime, timeUs);
+            buffer->meta_data().setInt64(kKeyTime, timeUs);
     }
 
     *out = buffer;
@@ -433,11 +433,11 @@
                         (mSampleRate >> 1)) / mSampleRate;
 
     if (mNumFramesReceived == 0) {
-        buffer->meta_data()->setInt64(kKeyAnchorTime, mStartTimeUs);
+        buffer->meta_data().setInt64(kKeyAnchorTime, mStartTimeUs);
     }
 
-    buffer->meta_data()->setInt64(kKeyTime, mPrevSampleTimeUs);
-    buffer->meta_data()->setInt64(kKeyDriftTime, timeUs - mInitialReadTimeUs);
+    buffer->meta_data().setInt64(kKeyTime, mPrevSampleTimeUs);
+    buffer->meta_data().setInt64(kKeyDriftTime, timeUs - mInitialReadTimeUs);
     mPrevSampleTimeUs = timestampUs;
     mNumFramesReceived += bufferSize / frameSize;
     mBuffersReceived.push_back(buffer);
diff --git a/media/libstagefright/CCodec.cpp b/media/libstagefright/CCodec.cpp
index bb70458..f62ee41 100644
--- a/media/libstagefright/CCodec.cpp
+++ b/media/libstagefright/CCodec.cpp
@@ -313,6 +313,19 @@
 }
 
 void CCodec::configure(const sp<AMessage> &msg) {
+    std::shared_ptr<C2ComponentInterface> intf;
+    {
+        Mutexed<State>::Locked state(mState);
+        if (state->get() != ALLOCATED) {
+            state->set(RELEASED);
+            state.unlock();
+            mCallback->onError(UNKNOWN_ERROR, ACTION_CODE_FATAL);
+            state.lock();
+            return;
+        }
+        intf = state->comp->intf();
+    }
+
     sp<AMessage> inputFormat(new AMessage);
     sp<AMessage> outputFormat(new AMessage);
     if (status_t err = [=] {
@@ -332,11 +345,34 @@
             setSurface(surface);
         }
 
+        std::vector<std::unique_ptr<C2Param>> params;
+        std::initializer_list<C2Param::Index> indices {
+            C2PortMimeConfig::input::PARAM_TYPE,
+            C2PortMimeConfig::output::PARAM_TYPE,
+        };
+        c2_status_t c2err = intf->query_vb(
+                {},
+                indices,
+                C2_DONT_BLOCK,
+                &params);
+        if (c2err != C2_OK) {
+            ALOGE("Failed to query component interface: %d", c2err);
+            return UNKNOWN_ERROR;
+        }
+        if (params.size() != indices.size()) {
+            ALOGE("Component returns wrong number of params");
+            return UNKNOWN_ERROR;
+        }
+        if (!params[0] || !params[1]) {
+            ALOGE("Component returns null params");
+            return UNKNOWN_ERROR;
+        }
+        inputFormat->setString("mime", ((C2PortMimeConfig *)params[0].get())->m.value);
+        outputFormat->setString("mime", ((C2PortMimeConfig *)params[1].get())->m.value);
+
         // XXX: hack
         bool audio = mime.startsWithIgnoreCase("audio/");
         if (encoder) {
-            outputFormat->setString("mime", mime);
-            inputFormat->setString("mime", AStringPrintf("%s/raw", audio ? "audio" : "video"));
             if (audio) {
                 inputFormat->setInt32("channel-count", 1);
                 inputFormat->setInt32("sample-rate", 44100);
@@ -347,8 +383,6 @@
                 outputFormat->setInt32("height", 1920);
             }
         } else {
-            inputFormat->setString("mime", mime);
-            outputFormat->setString("mime", AStringPrintf("%s/raw", audio ? "audio" : "video"));
             if (audio) {
                 outputFormat->setInt32("channel-count", 2);
                 outputFormat->setInt32("sample-rate", 44100);
@@ -712,7 +746,7 @@
     switch (msg->what()) {
         case kWhatAllocate: {
             // C2ComponentStore::createComponent() should return within 100ms.
-            setDeadline(now + 150ms);
+            setDeadline(now + 150ms, "allocate");
             AString componentName;
             CHECK(msg->findString("componentName", &componentName));
             allocate(componentName);
@@ -720,7 +754,7 @@
         }
         case kWhatConfigure: {
             // C2Component::commit_sm() should return within 5ms.
-            setDeadline(now + 50ms);
+            setDeadline(now + 50ms, "configure");
             sp<AMessage> format;
             CHECK(msg->findMessage("format", &format));
             configure(format);
@@ -728,31 +762,31 @@
         }
         case kWhatStart: {
             // C2Component::start() should return within 500ms.
-            setDeadline(now + 550ms);
+            setDeadline(now + 550ms, "start");
             start();
             break;
         }
         case kWhatStop: {
             // C2Component::stop() should return within 500ms.
-            setDeadline(now + 550ms);
+            setDeadline(now + 550ms, "stop");
             stop();
             break;
         }
         case kWhatFlush: {
             // C2Component::flush_sm() should return within 5ms.
-            setDeadline(now + 50ms);
+            setDeadline(now + 50ms, "flush");
             flush();
             break;
         }
         case kWhatCreateInputSurface: {
             // Surface operations may be briefly blocking.
-            setDeadline(now + 100ms);
+            setDeadline(now + 100ms, "createInputSurface");
             createInputSurface();
             break;
         }
         case kWhatSetInputSurface: {
             // Surface operations may be briefly blocking.
-            setDeadline(now + 100ms);
+            setDeadline(now + 100ms, "setInputSurface");
             sp<RefBase> obj;
             CHECK(msg->findObject("surface", &obj));
             sp<PersistentSurface> surface(static_cast<PersistentSurface *>(obj.get()));
@@ -780,25 +814,28 @@
             break;
         }
     }
-    setDeadline(TimePoint::max());
+    setDeadline(TimePoint::max(), "none");
 }
 
-void CCodec::setDeadline(const TimePoint &newDeadline) {
-    Mutexed<TimePoint>::Locked deadline(mDeadline);
-    *deadline = newDeadline;
+void CCodec::setDeadline(const TimePoint &newDeadline, const char *name) {
+    Mutexed<NamedTimePoint>::Locked deadline(mDeadline);
+    deadline->set(newDeadline, name);
 }
 
 void CCodec::initiateReleaseIfStuck() {
+    std::string name;
     {
-        Mutexed<TimePoint>::Locked deadline(mDeadline);
-        if (*deadline >= std::chrono::steady_clock::now()) {
+        Mutexed<NamedTimePoint>::Locked deadline(mDeadline);
+        if (deadline->get() >= std::chrono::steady_clock::now()) {
             // We're not stuck.
             return;
         }
+        name = deadline->getName();
     }
 
+    ALOGW("previous call to %s exceeded timeout", name.c_str());
     mCallback->onError(UNKNOWN_ERROR, ACTION_CODE_FATAL);
-    initiateRelease();
+    initiateRelease(false);
 }
 
 }  // namespace android
diff --git a/media/libstagefright/CallbackDataSource.cpp b/media/libstagefright/CallbackDataSource.cpp
index 71b737b..92e6eb9 100644
--- a/media/libstagefright/CallbackDataSource.cpp
+++ b/media/libstagefright/CallbackDataSource.cpp
@@ -117,6 +117,10 @@
     return mIDataSource->DrmInitialization(mime);
 }
 
+sp<IDataSource> CallbackDataSource::getIDataSource() const {
+    return mIDataSource;
+}
+
 TinyCacheSource::TinyCacheSource(const sp<DataSource>& source)
     : mSource(source), mCachedOffset(0), mCachedSize(0) {
     mName = String8::format("TinyCacheSource(%s)", mSource->toString().string());
@@ -194,4 +198,8 @@
     return mSource->DrmInitialization(mime);
 }
 
+sp<IDataSource> TinyCacheSource::getIDataSource() const {
+    return mSource->getIDataSource();
+}
+
 } // namespace android
diff --git a/media/libstagefright/CameraSource.cpp b/media/libstagefright/CameraSource.cpp
index 4960418..db37021 100644
--- a/media/libstagefright/CameraSource.cpp
+++ b/media/libstagefright/CameraSource.cpp
@@ -1100,7 +1100,7 @@
         *buffer = new MediaBuffer(frame->pointer(), frame->size());
         (*buffer)->setObserver(this);
         (*buffer)->add_ref();
-        (*buffer)->meta_data()->setInt64(kKeyTime, frameTime);
+        (*buffer)->meta_data().setInt64(kKeyTime, frameTime);
     }
     return OK;
 }
diff --git a/media/libstagefright/CameraSourceTimeLapse.cpp b/media/libstagefright/CameraSourceTimeLapse.cpp
index f3f06d8..3ad82d9 100644
--- a/media/libstagefright/CameraSourceTimeLapse.cpp
+++ b/media/libstagefright/CameraSourceTimeLapse.cpp
@@ -191,13 +191,13 @@
     (*newBuffer) = new MediaBuffer(sourceSize);
     memcpy((*newBuffer)->data(), sourcePointer, sourceSize);
 
-    (*newBuffer)->meta_data()->setInt64(kKeyTime, frameTime);
+    (*newBuffer)->meta_data().setInt64(kKeyTime, frameTime);
 }
 
 void CameraSourceTimeLapse::fillLastReadBufferCopy(MediaBufferBase& sourceBuffer) {
     ALOGV("fillLastReadBufferCopy");
     int64_t frameTime;
-    CHECK(sourceBuffer.meta_data()->findInt64(kKeyTime, &frameTime));
+    CHECK(sourceBuffer.meta_data().findInt64(kKeyTime, &frameTime));
     createMediaBufferCopy(sourceBuffer, frameTime, &mLastReadBufferCopy);
     mLastReadBufferCopy->add_ref();
     mLastReadBufferCopy->setObserver(this);
diff --git a/media/libstagefright/Codec2InfoBuilder.cpp b/media/libstagefright/Codec2InfoBuilder.cpp
new file mode 100644
index 0000000..7ce2ff1
--- /dev/null
+++ b/media/libstagefright/Codec2InfoBuilder.cpp
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "Codec2InfoBuilder"
+#include <log/log.h>
+
+#include <C2Component.h>
+#include <C2PlatformSupport.h>
+#include <C2V4l2Support.h>
+
+#include <cutils/properties.h>
+#include <media/stagefright/foundation/MediaDefs.h>
+#include <media/stagefright/xmlparser/MediaCodecsXmlParser.h>
+#include <media/stagefright/Codec2InfoBuilder.h>
+
+namespace android {
+
+using ConstTraitsPtr = std::shared_ptr<const C2Component::Traits>;
+
+status_t Codec2InfoBuilder::buildMediaCodecList(MediaCodecListWriter* writer) {
+    // Obtain C2ComponentStore
+    std::shared_ptr<C2ComponentStore> store = GetCodec2PlatformComponentStore();
+    if (store == nullptr) {
+        ALOGE("Cannot find a component store.");
+        return NO_INIT;
+    }
+
+    std::vector<ConstTraitsPtr> traits = store->listComponents();
+
+    if (property_get_bool("debug.stagefright.ccodec_v4l2", false)) {
+        std::shared_ptr<C2ComponentStore> v4l2Store = GetCodec2VDAComponentStore();
+        if (v4l2Store == nullptr) {
+            ALOGD("Cannot find a V4L2 component store.");
+            // non-fatal.
+        } else {
+            std::vector<ConstTraitsPtr> v4l2Traits = v4l2Store->listComponents();
+            traits.insert(traits.end(), v4l2Traits.begin(), v4l2Traits.end());
+        }
+    }
+
+    MediaCodecsXmlParser parser(
+            MediaCodecsXmlParser::defaultSearchDirs,
+            "media_codecs_c2.xml");
+    if (parser.getParsingStatus() != OK) {
+        ALOGD("XML parser no good");
+        return OK;
+    }
+    for (const ConstTraitsPtr &trait : traits) {
+        if (parser.getCodecMap().count(trait->name.c_str()) == 0) {
+            ALOGD("%s not found in xml", trait->name.c_str());
+            continue;
+        }
+        const MediaCodecsXmlParser::CodecProperties &codec = parser.getCodecMap().at(trait->name);
+        std::unique_ptr<MediaCodecInfoWriter> codecInfo = writer->addMediaCodecInfo();
+        codecInfo->setName(trait->name.c_str());
+        codecInfo->setOwner("dummy");
+        // TODO: get this from trait->kind
+        bool encoder = (trait->name.find("encoder") != std::string::npos);
+        codecInfo->setEncoder(encoder);
+        codecInfo->setRank(trait->rank);
+        for (auto typeIt = codec.typeMap.begin(); typeIt != codec.typeMap.end(); ++typeIt) {
+            const std::string &mediaType = typeIt->first;
+            const MediaCodecsXmlParser::AttributeMap &attrMap = typeIt->second;
+            std::unique_ptr<MediaCodecInfo::CapabilitiesWriter> caps =
+                codecInfo->addMime(mediaType.c_str());
+            for (auto attrIt = attrMap.begin(); attrIt != attrMap.end(); ++attrIt) {
+                std::string key, value;
+                std::tie(key, value) = *attrIt;
+                if (key.find("feature-") == 0 && key.find("feature-bitrate-modes") != 0) {
+                    caps->addDetail(key.c_str(), std::stoi(value));
+                } else {
+                    caps->addDetail(key.c_str(), value.c_str());
+                }
+            }
+            // TODO: get this from intf().
+            if (mediaType.find("video") != std::string::npos && !encoder) {
+                caps->addColorFormat(0x7F420888);  // COLOR_FormatYUV420Flexible
+            }
+        }
+    }
+    return OK;
+}
+
+}  // namespace android
diff --git a/media/libstagefright/FrameDecoder.cpp b/media/libstagefright/FrameDecoder.cpp
index 6f88c0e..9748a8b 100644
--- a/media/libstagefright/FrameDecoder.cpp
+++ b/media/libstagefright/FrameDecoder.cpp
@@ -251,7 +251,7 @@
             } else {
                 codecBuffer->setRange(0, mediaBuffer->range_length());
 
-                CHECK(mediaBuffer->meta_data()->findInt64(kKeyTime, &ptsUs));
+                CHECK(mediaBuffer->meta_data().findInt64(kKeyTime, &ptsUs));
                 memcpy(codecBuffer->data(),
                         (const uint8_t*)mediaBuffer->data() + mediaBuffer->range_offset(),
                         mediaBuffer->range_length());
@@ -387,12 +387,12 @@
 
 status_t VideoFrameDecoder::onInputReceived(
         const sp<MediaCodecBuffer> &codecBuffer,
-        const sp<MetaData> &sampleMeta, bool firstSample, uint32_t *flags) {
+        MetaDataBase &sampleMeta, bool firstSample, uint32_t *flags) {
     bool isSeekingClosest = (mSeekMode == MediaSource::ReadOptions::SEEK_CLOSEST)
             || (mSeekMode == MediaSource::ReadOptions::SEEK_FRAME_INDEX);
 
     if (firstSample && isSeekingClosest) {
-        sampleMeta->findInt64(kKeyTargetTime, &mTargetTimeUs);
+        sampleMeta.findInt64(kKeyTargetTime, &mTargetTimeUs);
         ALOGV("Seeking closest: targetTimeUs=%lld", (long long)mTargetTimeUs);
     }
 
diff --git a/media/libstagefright/InterfaceUtils.cpp b/media/libstagefright/InterfaceUtils.cpp
index 70fbbd7..56c5908 100644
--- a/media/libstagefright/InterfaceUtils.cpp
+++ b/media/libstagefright/InterfaceUtils.cpp
@@ -56,7 +56,7 @@
 
 sp<IMediaSource> CreateIMediaSourceFromMediaSourceBase(
         const sp<RemoteMediaExtractor> &extractor,
-        MediaSourceBase *source, const sp<RefBase> &plugin) {
+        MediaTrack *source, const sp<RefBase> &plugin) {
     if (source == nullptr) {
         return nullptr;
     }
diff --git a/media/libstagefright/MPEG2TSWriter.cpp b/media/libstagefright/MPEG2TSWriter.cpp
index cdcd657..770535c 100644
--- a/media/libstagefright/MPEG2TSWriter.cpp
+++ b/media/libstagefright/MPEG2TSWriter.cpp
@@ -264,11 +264,11 @@
            buffer->range_length());
 
     int64_t timeUs;
-    CHECK(buffer->meta_data()->findInt64(kKeyTime, &timeUs));
+    CHECK(buffer->meta_data().findInt64(kKeyTime, &timeUs));
     mBuffer->meta()->setInt64("timeUs", timeUs);
 
     int32_t isSync;
-    if (buffer->meta_data()->findInt32(kKeyIsSyncFrame, &isSync)
+    if (buffer->meta_data().findInt32(kKeyIsSyncFrame, &isSync)
             && isSync != 0) {
         mBuffer->meta()->setInt32("isSync", true);
     }
@@ -288,7 +288,7 @@
     }
 
     int64_t timeUs;
-    CHECK(buffer->meta_data()->findInt64(kKeyTime, &timeUs));
+    CHECK(buffer->meta_data().findInt64(kKeyTime, &timeUs));
 
     mBuffer->meta()->setInt64("timeUs", timeUs);
     mBuffer->meta()->setInt32("isSync", true);
diff --git a/media/libstagefright/MPEG4Writer.cpp b/media/libstagefright/MPEG4Writer.cpp
index 387cb13..cfbbcb2 100644
--- a/media/libstagefright/MPEG4Writer.cpp
+++ b/media/libstagefright/MPEG4Writer.cpp
@@ -2831,7 +2831,7 @@
         ++count;
 
         int32_t isCodecConfig;
-        if (buffer->meta_data()->findInt32(kKeyIsCodecConfig, &isCodecConfig)
+        if (buffer->meta_data().findInt32(kKeyIsCodecConfig, &isCodecConfig)
                 && isCodecConfig) {
             // if config format (at track addition) already had CSD, keep that
             // UNLESS we have not received any frames yet.
@@ -2890,7 +2890,7 @@
         memcpy(copy->data(), (uint8_t *)buffer->data() + buffer->range_offset(),
                 buffer->range_length());
         copy->set_range(0, buffer->range_length());
-        meta_data = new MetaData(*buffer->meta_data().get());
+        meta_data = new MetaData(buffer->meta_data());
         buffer->release();
         buffer = NULL;
 
diff --git a/media/libstagefright/MediaCodec.cpp b/media/libstagefright/MediaCodec.cpp
index 2b33708..7d5c63a 100644
--- a/media/libstagefright/MediaCodec.cpp
+++ b/media/libstagefright/MediaCodec.cpp
@@ -421,13 +421,33 @@
 sp<MediaCodec> MediaCodec::CreateByType(
         const sp<ALooper> &looper, const AString &mime, bool encoder, status_t *err, pid_t pid,
         uid_t uid) {
-    sp<MediaCodec> codec = new MediaCodec(looper, pid, uid);
+    Vector<AString> matchingCodecs;
+    Vector<AString> owners;
 
-    const status_t ret = codec->init(mime, true /* nameIsType */, encoder);
+    MediaCodecList::findMatchingCodecs(
+            mime.c_str(),
+            encoder,
+            0,
+            &matchingCodecs,
+            &owners);
+
     if (err != NULL) {
-        *err = ret;
+        *err = NAME_NOT_FOUND;
     }
-    return ret == OK ? codec : NULL; // NULL deallocates codec.
+    for (size_t i = 0; i < matchingCodecs.size(); ++i) {
+        sp<MediaCodec> codec = new MediaCodec(looper, pid, uid);
+        AString componentName = matchingCodecs[i];
+        status_t ret = codec->init(componentName);
+        if (err != NULL) {
+            *err = ret;
+        }
+        if (ret == OK) {
+            return codec;
+        }
+        ALOGD("Allocating component '%s' failed (%d), try next one.",
+                componentName.c_str(), ret);
+    }
+    return NULL;
 }
 
 // static
@@ -435,7 +455,7 @@
         const sp<ALooper> &looper, const AString &name, status_t *err, pid_t pid, uid_t uid) {
     sp<MediaCodec> codec = new MediaCodec(looper, pid, uid);
 
-    const status_t ret = codec->init(name, false /* nameIsType */, false /* encoder */);
+    const status_t ret = codec->init(name);
     if (err != NULL) {
         *err = ret;
     }
@@ -553,11 +573,11 @@
 }
 
 //static
-sp<CodecBase> MediaCodec::GetCodecBase(const AString &name, bool nameIsType) {
+sp<CodecBase> MediaCodec::GetCodecBase(const AString &name) {
     static bool ccodecEnabled = property_get_bool("debug.stagefright.ccodec", false);
-    if (ccodecEnabled && !nameIsType && name.startsWithIgnoreCase("c2.")) {
+    if (ccodecEnabled && name.startsWithIgnoreCase("c2.")) {
         return new CCodec;
-    } else if (nameIsType || name.startsWithIgnoreCase("omx.")) {
+    } else if (name.startsWithIgnoreCase("omx.")) {
         // at this time only ACodec specifies a mime type.
         return new ACodec;
     } else if (name.startsWithIgnoreCase("android.filter.")) {
@@ -567,48 +587,42 @@
     }
 }
 
-status_t MediaCodec::init(const AString &name, bool nameIsType, bool encoder) {
+status_t MediaCodec::init(const AString &name) {
     mResourceManagerService->init();
 
     // save init parameters for reset
     mInitName = name;
-    mInitNameIsType = nameIsType;
-    mInitIsEncoder = encoder;
 
     // Current video decoders do not return from OMX_FillThisBuffer
     // quickly, violating the OpenMAX specs, until that is remedied
     // we need to invest in an extra looper to free the main event
     // queue.
 
-    mCodec = GetCodecBase(name, nameIsType);
+    mCodec = GetCodecBase(name);
     if (mCodec == NULL) {
         return NAME_NOT_FOUND;
     }
 
     bool secureCodec = false;
-    if (nameIsType && !strncasecmp(name.c_str(), "video/", 6)) {
-        mIsVideo = true;
-    } else {
-        AString tmp = name;
-        if (tmp.endsWith(".secure")) {
-            secureCodec = true;
-            tmp.erase(tmp.size() - 7, 7);
-        }
-        const sp<IMediaCodecList> mcl = MediaCodecList::getInstance();
-        if (mcl == NULL) {
-            mCodec = NULL;  // remove the codec.
-            return NO_INIT; // if called from Java should raise IOException
-        }
-        ssize_t codecIdx = mcl->findCodecByName(tmp.c_str());
-        if (codecIdx >= 0) {
-            const sp<MediaCodecInfo> info = mcl->getCodecInfo(codecIdx);
-            Vector<AString> mimes;
-            info->getSupportedMimes(&mimes);
-            for (size_t i = 0; i < mimes.size(); i++) {
-                if (mimes[i].startsWith("video/")) {
-                    mIsVideo = true;
-                    break;
-                }
+    AString tmp = name;
+    if (tmp.endsWith(".secure")) {
+        secureCodec = true;
+        tmp.erase(tmp.size() - 7, 7);
+    }
+    const sp<IMediaCodecList> mcl = MediaCodecList::getInstance();
+    if (mcl == NULL) {
+        mCodec = NULL;  // remove the codec.
+        return NO_INIT; // if called from Java should raise IOException
+    }
+    ssize_t codecIdx = mcl->findCodecByName(tmp.c_str());
+    if (codecIdx >= 0) {
+        const sp<MediaCodecInfo> info = mcl->getCodecInfo(codecIdx);
+        Vector<AString> mimes;
+        info->getSupportedMimes(&mimes);
+        for (size_t i = 0; i < mimes.size(); i++) {
+            if (mimes[i].startsWith("video/")) {
+                mIsVideo = true;
+                break;
             }
         }
     }
@@ -638,22 +652,10 @@
 
     sp<AMessage> msg = new AMessage(kWhatInit, this);
     msg->setString("name", name);
-    msg->setInt32("nameIsType", nameIsType);
-
-    if (nameIsType) {
-        msg->setInt32("encoder", encoder);
-    }
 
     if (mAnalyticsItem != NULL) {
-        if (nameIsType) {
-            // name is the mime type
-            mAnalyticsItem->setCString(kCodecMime, name.c_str());
-        } else {
-            mAnalyticsItem->setCString(kCodecCodec, name.c_str());
-        }
+        mAnalyticsItem->setCString(kCodecCodec, name.c_str());
         mAnalyticsItem->setCString(kCodecMode, mIsVideo ? kCodecModeVideo : kCodecModeAudio);
-        if (nameIsType)
-            mAnalyticsItem->setInt32(kCodecEncoder, encoder);
     }
 
     status_t err;
@@ -719,6 +721,7 @@
         if (format->findInt32("level", &level)) {
             mAnalyticsItem->setInt32(kCodecLevel, level);
         }
+        mAnalyticsItem->setInt32(kCodecEncoder, (flags & CONFIGURE_FLAG_ENCODE) ? 1 : 0);
     }
 
     if (mIsVideo) {
@@ -743,8 +746,7 @@
         }
 
         // Prevent possible integer overflow in downstream code.
-        if (mInitIsEncoder
-                && (uint64_t)mVideoWidth * mVideoHeight > (uint64_t)INT32_MAX / 4) {
+        if ((uint64_t)mVideoWidth * mVideoHeight > (uint64_t)INT32_MAX / 4) {
             ALOGE("buffer size is too big, width=%d, height=%d", mVideoWidth, mVideoHeight);
             return BAD_VALUE;
         }
@@ -1023,7 +1025,7 @@
     mHaveInputSurface = false;
 
     if (err == OK) {
-        err = init(mInitName, mInitNameIsType, mInitIsEncoder);
+        err = init(mInitName);
     }
     return err;
 }
@@ -1973,21 +1975,8 @@
             AString name;
             CHECK(msg->findString("name", &name));
 
-            int32_t nameIsType;
-            int32_t encoder = false;
-            CHECK(msg->findInt32("nameIsType", &nameIsType));
-            if (nameIsType) {
-                CHECK(msg->findInt32("encoder", &encoder));
-            }
-
             sp<AMessage> format = new AMessage;
-
-            if (nameIsType) {
-                format->setString("mime", name.c_str());
-                format->setInt32("encoder", encoder);
-            } else {
-                format->setString("componentName", name.c_str());
-            }
+            format->setString("componentName", name.c_str());
 
             mCodec->initiateAllocateComponent(format);
             break;
diff --git a/media/libstagefright/MediaCodecList.cpp b/media/libstagefright/MediaCodecList.cpp
index 54265a4..f595646 100644
--- a/media/libstagefright/MediaCodecList.cpp
+++ b/media/libstagefright/MediaCodecList.cpp
@@ -29,6 +29,7 @@
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/MediaDefs.h>
+#include <media/stagefright/Codec2InfoBuilder.h>
 #include <media/stagefright/MediaCodecList.h>
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/OmxInfoBuilder.h>
@@ -77,6 +78,15 @@
 }
 
 OmxInfoBuilder sOmxInfoBuilder;
+Codec2InfoBuilder sCodec2InfoBuilder;
+
+std::initializer_list<MediaCodecListBuilderBase *> GetBuilders() {
+    if (property_get_bool("debug.stagefright.ccodec", false)) {
+        return {&sOmxInfoBuilder, &sCodec2InfoBuilder};
+    } else {
+        return {&sOmxInfoBuilder};
+    }
+}
 
 }  // unnamed namespace
 
@@ -88,7 +98,7 @@
     ALOGV("Enter profilerThreadWrapper.");
     remove(kProfilingResults);  // remove previous result so that it won't be loaded to
                                 // the new MediaCodecList
-    sp<MediaCodecList> codecList(new MediaCodecList(&sOmxInfoBuilder));
+    sp<MediaCodecList> codecList(new MediaCodecList(GetBuilders()));
     if (codecList->initCheck() != OK) {
         ALOGW("Failed to create a new MediaCodecList, skipping codec profiling.");
         return nullptr;
@@ -98,7 +108,7 @@
     ALOGV("Codec profiling started.");
     profileCodecs(infos, kProfilingResults);
     ALOGV("Codec profiling completed.");
-    codecList = new MediaCodecList(&sOmxInfoBuilder);
+    codecList = new MediaCodecList(GetBuilders());
     if (codecList->initCheck() != OK) {
         ALOGW("Failed to parse profiling results.");
         return nullptr;
@@ -116,7 +126,7 @@
     Mutex::Autolock autoLock(sInitMutex);
 
     if (sCodecList == nullptr) {
-        MediaCodecList *codecList = new MediaCodecList(&sOmxInfoBuilder);
+        MediaCodecList *codecList = new MediaCodecList(GetBuilders());
         if (codecList->initCheck() == OK) {
             sCodecList = codecList;
 
@@ -169,11 +179,28 @@
     return sRemoteList;
 }
 
-MediaCodecList::MediaCodecList(MediaCodecListBuilderBase* builder) {
+MediaCodecList::MediaCodecList(std::initializer_list<MediaCodecListBuilderBase*> builders) {
     mGlobalSettings = new AMessage();
     mCodecInfos.clear();
     MediaCodecListWriter writer(this);
-    mInitCheck = builder->buildMediaCodecList(&writer);
+    for (MediaCodecListBuilderBase *builder : builders) {
+        mInitCheck = builder->buildMediaCodecList(&writer);
+        if (mInitCheck != OK) {
+            break;
+        }
+    }
+    std::stable_sort(
+            mCodecInfos.begin(),
+            mCodecInfos.end(),
+            [](const sp<MediaCodecInfo> &info1, const sp<MediaCodecInfo> &info2) {
+                if (info2 == nullptr) {
+                    return false;
+                } else if (info1 == nullptr) {
+                    return true;
+                } else {
+                    return info1->rank() < info2->rank();
+                }
+            });
 }
 
 MediaCodecList::~MediaCodecList() {
diff --git a/media/libstagefright/MediaCodecSource.cpp b/media/libstagefright/MediaCodecSource.cpp
index 08331ad..20881a4 100644
--- a/media/libstagefright/MediaCodecSource.cpp
+++ b/media/libstagefright/MediaCodecSource.cpp
@@ -692,7 +692,7 @@
         size_t size = 0;
 
         if (mbuf != NULL) {
-            CHECK(mbuf->meta_data()->findInt64(kKeyTime, &timeUs));
+            CHECK(mbuf->meta_data().findInt64(kKeyTime, &timeUs));
             if (mFirstSampleSystemTimeUs < 0ll) {
                 mFirstSampleSystemTimeUs = systemTime() / 1000;
                 if (mPausePending) {
@@ -715,7 +715,7 @@
                     mFirstSampleTimeUs = timeUs;
                 }
                 int64_t driftTimeUs = 0;
-                if (mbuf->meta_data()->findInt64(kKeyDriftTime, &driftTimeUs)
+                if (mbuf->meta_data().findInt64(kKeyDriftTime, &driftTimeUs)
                         && driftTimeUs) {
                     driftTimeUs = timeUs - mFirstSampleTimeUs - driftTimeUs;
                 }
@@ -937,7 +937,7 @@
                         decodingTimeUs = *(mDecodingTimeQueue.begin());
                         mDecodingTimeQueue.erase(mDecodingTimeQueue.begin());
                     }
-                    mbuf->meta_data()->setInt64(kKeyDecodingTime, decodingTimeUs);
+                    mbuf->meta_data().setInt64(kKeyDecodingTime, decodingTimeUs);
 
                     ALOGV("[video] time %" PRId64 " us (%.2f secs), dts/pts diff %" PRId64,
                             timeUs, timeUs / 1E6, decodingTimeUs - timeUs);
@@ -947,18 +947,18 @@
                     CHECK(!mDriftTimeQueue.empty());
                     driftTimeUs = *(mDriftTimeQueue.begin());
                     mDriftTimeQueue.erase(mDriftTimeQueue.begin());
-                    mbuf->meta_data()->setInt64(kKeyDriftTime, driftTimeUs);
+                    mbuf->meta_data().setInt64(kKeyDriftTime, driftTimeUs);
 #endif // DEBUG_DRIFT_TIME
                     ALOGV("[audio] time %" PRId64 " us (%.2f secs), drift %" PRId64,
                             timeUs, timeUs / 1E6, driftTimeUs);
                 }
-                mbuf->meta_data()->setInt64(kKeyTime, timeUs);
+                mbuf->meta_data().setInt64(kKeyTime, timeUs);
             } else {
-                mbuf->meta_data()->setInt64(kKeyTime, 0ll);
-                mbuf->meta_data()->setInt32(kKeyIsCodecConfig, true);
+                mbuf->meta_data().setInt64(kKeyTime, 0ll);
+                mbuf->meta_data().setInt32(kKeyIsCodecConfig, true);
             }
             if (flags & MediaCodec::BUFFER_FLAG_SYNCFRAME) {
-                mbuf->meta_data()->setInt32(kKeyIsSyncFrame, true);
+                mbuf->meta_data().setInt32(kKeyIsSyncFrame, true);
             }
             memcpy(mbuf->data(), outbuf->data(), outbuf->size());
 
diff --git a/media/libstagefright/MediaExtractorFactory.cpp b/media/libstagefright/MediaExtractorFactory.cpp
index 543c274..f6c61a0 100644
--- a/media/libstagefright/MediaExtractorFactory.cpp
+++ b/media/libstagefright/MediaExtractorFactory.cpp
@@ -23,7 +23,6 @@
 #include <media/MediaAnalyticsItem.h>
 #include <media/MediaExtractor.h>
 #include <media/stagefright/foundation/AMessage.h>
-#include <media/stagefright/FileSource.h>
 #include <media/stagefright/InterfaceUtils.h>
 #include <media/stagefright/MediaExtractorFactory.h>
 #include <media/IMediaExtractor.h>
@@ -40,7 +39,7 @@
 // static
 sp<IMediaExtractor> MediaExtractorFactory::Create(
         const sp<DataSource> &source, const char *mime) {
-    ALOGV("MediaExtractorFactory::%s %s", __func__, mime);
+    ALOGV("MediaExtractorFactory::Create %s", mime);
 
     if (!property_get_bool("media.stagefright.extractremote", true)) {
         // local extractor
@@ -64,44 +63,6 @@
     return NULL;
 }
 
-// static
-sp<IMediaExtractor> MediaExtractorFactory::CreateFromFd(
-        int fd, int64_t offset, int64_t length, const char *mime, sp<DataSource> *out) {
-    ALOGV("MediaExtractorFactory::%s %s", __func__, mime);
-
-    if (property_get_bool("media.stagefright.extractremote", true)) {
-        // remote extractor
-        ALOGV("get service manager");
-        sp<IBinder> binder = defaultServiceManager()->getService(String16("media.extractor"));
-
-        if (binder != 0) {
-            sp<IMediaExtractorService> mediaExService(
-                    interface_cast<IMediaExtractorService>(binder));
-            if (!FileSource::requiresDrm(fd, offset, length, nullptr /* mime */)) {
-                ALOGD("FileSource remote");
-                sp<IDataSource> remoteSource =
-                    mediaExService->makeIDataSource(fd, offset, length);
-                ALOGV("IDataSource(FileSource): %p %d %lld %lld",
-                        remoteSource.get(), fd, (long long)offset, (long long)length);
-                if (remoteSource.get() != nullptr) {
-                    // replace the caller's local source with remote source.
-                    *out = CreateDataSourceFromIDataSource(remoteSource);
-                    return mediaExService->makeExtractor(remoteSource, mime);
-                } else {
-                    ALOGW("extractor service cannot make file source."
-                            " falling back to local file source.");
-                }
-            }
-            // Falls back.
-        } else {
-            ALOGE("extractor service not running");
-            return nullptr;
-        }
-    }
-    *out = new FileSource(fd, offset, length);
-    return Create(*out, mime);
-}
-
 sp<IMediaExtractor> MediaExtractorFactory::CreateFromService(
         const sp<DataSource> &source, const char *mime) {
 
diff --git a/media/libstagefright/MediaMuxer.cpp b/media/libstagefright/MediaMuxer.cpp
index 62daac8..23e543d 100644
--- a/media/libstagefright/MediaMuxer.cpp
+++ b/media/libstagefright/MediaMuxer.cpp
@@ -181,13 +181,13 @@
     mediaBuffer->add_ref(); // Released in MediaAdapter::signalBufferReturned().
     mediaBuffer->set_range(buffer->offset(), buffer->size());
 
-    sp<MetaData> sampleMetaData = mediaBuffer->meta_data();
-    sampleMetaData->setInt64(kKeyTime, timeUs);
+    MetaDataBase &sampleMetaData = mediaBuffer->meta_data();
+    sampleMetaData.setInt64(kKeyTime, timeUs);
     // Just set the kKeyDecodingTime as the presentation time for now.
-    sampleMetaData->setInt64(kKeyDecodingTime, timeUs);
+    sampleMetaData.setInt64(kKeyDecodingTime, timeUs);
 
     if (flags & MediaCodec::BUFFER_FLAG_SYNCFRAME) {
-        sampleMetaData->setInt32(kKeyIsSyncFrame, true);
+        sampleMetaData.setInt32(kKeyIsSyncFrame, true);
     }
 
     sp<MediaAdapter> currentTrack = mTrackList[trackIndex];
diff --git a/media/libstagefright/MetaDataUtils.cpp b/media/libstagefright/MetaDataUtils.cpp
index ac1f33f..af8f539 100644
--- a/media/libstagefright/MetaDataUtils.cpp
+++ b/media/libstagefright/MetaDataUtils.cpp
@@ -24,33 +24,33 @@
 
 namespace android {
 
-sp<MetaData> MakeAVCCodecSpecificData(const sp<ABuffer> &accessUnit) {
+bool MakeAVCCodecSpecificData(MetaDataBase &meta, const sp<ABuffer> &accessUnit) {
     int32_t width;
     int32_t height;
     int32_t sarWidth;
     int32_t sarHeight;
     sp<ABuffer> csd = MakeAVCCodecSpecificData(accessUnit, &width, &height, &sarWidth, &sarHeight);
     if (csd == nullptr) {
-        return nullptr;
+        return false;
     }
-    sp<MetaData> meta = new MetaData;
-    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
+    meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
 
-    meta->setData(kKeyAVCC, kTypeAVCC, csd->data(), csd->size());
-    meta->setInt32(kKeyWidth, width);
-    meta->setInt32(kKeyHeight, height);
+    meta.setData(kKeyAVCC, kTypeAVCC, csd->data(), csd->size());
+    meta.setInt32(kKeyWidth, width);
+    meta.setInt32(kKeyHeight, height);
     if (sarWidth > 0 && sarHeight > 0) {
-        meta->setInt32(kKeySARWidth, sarWidth);
-        meta->setInt32(kKeySARHeight, sarHeight);
+        meta.setInt32(kKeySARWidth, sarWidth);
+        meta.setInt32(kKeySARHeight, sarHeight);
     }
-    return meta;
+    return true;
 }
 
-sp<MetaData> MakeAACCodecSpecificData(
+bool MakeAACCodecSpecificData(
+        MetaDataBase &meta,
         unsigned profile, unsigned sampling_freq_index,
         unsigned channel_configuration) {
     if(sampling_freq_index > 11u) {
-        return nullptr;
+        return false;
     }
     int32_t sampleRate;
     int32_t channelCount;
@@ -91,15 +91,14 @@
     csd[sizeof(kStaticESDS) + 1] =
         ((sampling_freq_index << 7) & 0x80) | (channel_configuration << 3);
 
-    sp<MetaData> meta = new MetaData;
-    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
+    meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
 
-    meta->setInt32(kKeySampleRate, sampleRate);
-    meta->setInt32(kKeyChannelCount, channelCount);
+    meta.setInt32(kKeySampleRate, sampleRate);
+    meta.setInt32(kKeyChannelCount, channelCount);
 
-    meta->setData(kKeyESDS, 0, csd, csdSize);
+    meta.setData(kKeyESDS, 0, csd, csdSize);
     delete [] csd;
-    return meta;
+    return true;
 }
 
 }  // namespace android
diff --git a/media/libstagefright/NuMediaExtractor.cpp b/media/libstagefright/NuMediaExtractor.cpp
index c6cbb2f..540cf8c 100644
--- a/media/libstagefright/NuMediaExtractor.cpp
+++ b/media/libstagefright/NuMediaExtractor.cpp
@@ -525,10 +525,10 @@
             mbuf->release();
             continue;
         }
-        if (mbuf->meta_data()->findInt64(kKeyTime, &timeUs)) {
+        if (mbuf->meta_data().findInt64(kKeyTime, &timeUs)) {
             info->mSamples.emplace_back(mbuf, timeUs);
         } else {
-            mbuf->meta_data()->dumpToLog();
+            mbuf->meta_data().dumpToLog();
             info->mFinalResult = ERROR_MALFORMED;
             mbuf->release();
             releaseRemaining = true;
@@ -568,7 +568,7 @@
 status_t NuMediaExtractor::appendVorbisNumPageSamples(
         MediaBufferBase *mbuf, const sp<ABuffer> &buffer) {
     int32_t numPageSamples;
-    if (!mbuf->meta_data()->findInt32(
+    if (!mbuf->meta_data().findInt32(
             kKeyValidSamples, &numPageSamples)) {
         numPageSamples = -1;
     }
@@ -580,7 +580,7 @@
     uint32_t type;
     const void *data;
     size_t size, size2;
-    if (mbuf->meta_data()->findData(kKeyEncryptedSizes, &type, &data, &size)) {
+    if (mbuf->meta_data().findData(kKeyEncryptedSizes, &type, &data, &size)) {
         // Signal numPageSamples (a plain int32_t) is appended at the end,
         // i.e. sizeof(numPageSamples) plain bytes + 0 encrypted bytes
         if (SIZE_MAX - size < sizeof(int32_t)) {
@@ -598,9 +598,9 @@
         int32_t zero = 0;
         memcpy(adata, data, size);
         memcpy(adata + size, &zero, sizeof(zero));
-        mbuf->meta_data()->setData(kKeyEncryptedSizes, type, adata, newSize);
+        mbuf->meta_data().setData(kKeyEncryptedSizes, type, adata, newSize);
 
-        if (mbuf->meta_data()->findData(kKeyPlainSizes, &type, &data, &size2)) {
+        if (mbuf->meta_data().findData(kKeyPlainSizes, &type, &data, &size2)) {
             if (size2 != size) {
                 return ERROR_MALFORMED;
             }
@@ -613,7 +613,7 @@
         // append sizeof(numPageSamples) to plain sizes.
         int32_t int32Size = sizeof(numPageSamples);
         memcpy(adata + size, &int32Size, sizeof(int32Size));
-        mbuf->meta_data()->setData(kKeyPlainSizes, type, adata, newSize);
+        mbuf->meta_data().setData(kKeyPlainSizes, type, adata, newSize);
     }
 
     return OK;
@@ -725,7 +725,7 @@
     }
 
     TrackInfo *info = &mSelectedTracks.editItemAt(minIndex);
-    *sampleMeta = info->mSamples.begin()->mBuffer->meta_data();
+    *sampleMeta = new MetaData(info->mSamples.begin()->mBuffer->meta_data());
 
     return OK;
 }
diff --git a/media/libstagefright/OmxInfoBuilder.cpp b/media/libstagefright/OmxInfoBuilder.cpp
index a6ebadd..fe141ab 100644
--- a/media/libstagefright/OmxInfoBuilder.cpp
+++ b/media/libstagefright/OmxInfoBuilder.cpp
@@ -154,22 +154,22 @@
     // codec name -> index into swCodecs/hwCodecs
     std::map<hidl_string, std::unique_ptr<MediaCodecInfoWriter>>
             swCodecName2Info, hwCodecName2Info;
-    // owner name -> MediaCodecInfo
-    // This map will be used to obtain the correct IOmx service(s) needed for
-    // creating IOmxNode instances and querying capabilities.
-    std::map<std::string, std::vector<sp<MediaCodecInfo> > >
-            owner2CodecInfo;
 
-    for (const auto& role : roles) {
-        const auto& typeName = role.type;
+    char rank[PROPERTY_VALUE_MAX];
+    uint32_t defaultRank = 0x100;
+    if (property_get("debug.stagefright.omx_default_rank", rank, nullptr)) {
+        defaultRank = std::strtoul(rank, nullptr, 10);
+    }
+    for (const IOmxStore::RoleInfo& role : roles) {
+        const hidl_string& typeName = role.type;
         bool isEncoder = role.isEncoder;
         bool preferPlatformNodes = role.preferPlatformNodes;
         // If preferPlatformNodes is true, hardware nodes must be added after
         // platform (software) nodes. hwCodecs is used to hold hardware nodes
         // that need to be added after software nodes for the same role.
         std::vector<const IOmxStore::NodeInfo*> hwCodecs;
-        for (const auto& node : role.nodes) {
-            const auto& nodeName = node.name;
+        for (const IOmxStore::NodeInfo& node : role.nodes) {
+            const hidl_string& nodeName = node.name;
             bool isSoftware = hasPrefix(nodeName, "OMX.google");
             MediaCodecInfoWriter* info;
             if (isSoftware) {
@@ -182,6 +182,7 @@
                     info->setName(nodeName.c_str());
                     info->setOwner(node.owner.c_str());
                     info->setEncoder(isEncoder);
+                    info->setRank(defaultRank);
                 } else {
                     // The node has been seen before. Simply retrieve the
                     // existing MediaCodecInfoWriter.
@@ -198,6 +199,7 @@
                         info->setName(nodeName.c_str());
                         info->setOwner(node.owner.c_str());
                         info->setEncoder(isEncoder);
+                        info->setRank(defaultRank);
                     } else {
                         // If preferPlatformNodes is true, this node must be
                         // added after all software nodes.
@@ -224,9 +226,9 @@
         // added in the loop above, but rather saved in hwCodecs. They are
         // going to be added here.
         if (preferPlatformNodes) {
-            for (const auto& node : hwCodecs) {
+            for (const IOmxStore::NodeInfo *node : hwCodecs) {
                 MediaCodecInfoWriter* info;
-                const auto& nodeName = node->name;
+                const hidl_string& nodeName = node->name;
                 auto c2i = hwCodecName2Info.find(nodeName);
                 if (c2i == hwCodecName2Info.end()) {
                     // Create a new MediaCodecInfo for a new node.
@@ -236,6 +238,7 @@
                     info->setName(nodeName.c_str());
                     info->setOwner(node->owner.c_str());
                     info->setEncoder(isEncoder);
+                    info->setRank(defaultRank);
                 } else {
                     // The node has been seen before. Simply retrieve the
                     // existing MediaCodecInfoWriter.
diff --git a/media/libstagefright/RemoteMediaExtractor.cpp b/media/libstagefright/RemoteMediaExtractor.cpp
index 7efb91c..9d2c42b 100644
--- a/media/libstagefright/RemoteMediaExtractor.cpp
+++ b/media/libstagefright/RemoteMediaExtractor.cpp
@@ -57,13 +57,13 @@
         // tracks (size_t)
         mAnalyticsItem->setInt32(kExtractorTracks, ntracks);
         // metadata
-        sp<MetaData> pMetaData = extractor->getMetaData();
-        if (pMetaData != nullptr) {
-            String8 xx = pMetaData->toString();
+        MetaDataBase pMetaData;
+        if (extractor->getMetaData(pMetaData) == OK) {
+            String8 xx = pMetaData.toString();
             // 'titl' -- but this verges into PII
             // 'mime'
             const char *mime = nullptr;
-            if (pMetaData->findCString(kKeyMIMEType, &mime)) {
+            if (pMetaData.findCString(kKeyMIMEType, &mime)) {
                 mAnalyticsItem->setCString(kExtractorMime,  mime);
             }
             // what else is interesting and not already available?
@@ -95,17 +95,25 @@
 }
 
 sp<IMediaSource> RemoteMediaExtractor::getTrack(size_t index) {
-    MediaSourceBase *source = mExtractor->getTrack(index);
+    MediaTrack *source = mExtractor->getTrack(index);
     return (source == nullptr)
             ? nullptr : CreateIMediaSourceFromMediaSourceBase(this, source, mExtractorPlugin);
 }
 
 sp<MetaData> RemoteMediaExtractor::getTrackMetaData(size_t index, uint32_t flags) {
-    return mExtractor->getTrackMetaData(index, flags);
+    sp<MetaData> meta = new MetaData();
+    if (mExtractor->getTrackMetaData(*meta.get(), index, flags) == OK) {
+        return meta;
+    }
+    return nullptr;
 }
 
 sp<MetaData> RemoteMediaExtractor::getMetaData() {
-    return mExtractor->getMetaData();
+    sp<MetaData> meta = new MetaData();
+    if (mExtractor->getMetaData(*meta.get()) == OK) {
+        return meta;
+    }
+    return nullptr;
 }
 
 status_t RemoteMediaExtractor::getMetrics(Parcel *reply) {
diff --git a/media/libstagefright/RemoteMediaSource.cpp b/media/libstagefright/RemoteMediaSource.cpp
index d038454..d07afec 100644
--- a/media/libstagefright/RemoteMediaSource.cpp
+++ b/media/libstagefright/RemoteMediaSource.cpp
@@ -22,7 +22,7 @@
 
 RemoteMediaSource::RemoteMediaSource(
         const sp<RemoteMediaExtractor> &extractor,
-        MediaSourceBase *source,
+        MediaTrack *source,
         const sp<RefBase> &plugin)
     : mExtractor(extractor),
       mSource(source),
@@ -42,7 +42,11 @@
 }
 
 sp<MetaData> RemoteMediaSource::getFormat() {
-    return mSource->getFormat();
+    sp<MetaData> meta = new MetaData();
+    if (mSource->getFormat(*meta.get()) == OK) {
+        return meta;
+    }
+    return nullptr;
 }
 
 status_t RemoteMediaSource::read(
@@ -51,11 +55,11 @@
 }
 
 status_t RemoteMediaSource::pause() {
-    return mSource->pause();
+    return ERROR_UNSUPPORTED;
 }
 
-status_t RemoteMediaSource::setStopTimeUs(int64_t stopTimeUs) {
-    return mSource->setStopTimeUs(stopTimeUs);
+status_t RemoteMediaSource::setStopTimeUs(int64_t /* stopTimeUs */) {
+    return ERROR_UNSUPPORTED;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -63,7 +67,7 @@
 // static
 sp<IMediaSource> RemoteMediaSource::wrap(
         const sp<RemoteMediaExtractor> &extractor,
-        MediaSourceBase *source, const sp<RefBase> &plugin) {
+        MediaTrack *source, const sp<RefBase> &plugin) {
     if (source == nullptr) {
         return nullptr;
     }
diff --git a/media/libstagefright/SimpleDecodingSource.cpp b/media/libstagefright/SimpleDecodingSource.cpp
index f93a0b7..404c537 100644
--- a/media/libstagefright/SimpleDecodingSource.cpp
+++ b/media/libstagefright/SimpleDecodingSource.cpp
@@ -309,7 +309,7 @@
 
             if (in_buf != NULL) {
                 int64_t timestampUs = 0;
-                CHECK(in_buf->meta_data()->findInt64(kKeyTime, &timestampUs));
+                CHECK(in_buf->meta_data().findInt64(kKeyTime, &timestampUs));
                 if (in_buf->range_length() + (mIsVorbis ? 4 : 0) > in_buffer->capacity()) {
                     ALOGW("'%s' received %zu input bytes for buffer of size %zu",
                             mComponentName.c_str(),
@@ -321,7 +321,7 @@
 
                 if (mIsVorbis) {
                     int32_t numPageSamples;
-                    if (!in_buf->meta_data()->findInt32(kKeyValidSamples, &numPageSamples)) {
+                    if (!in_buf->meta_data().findInt32(kKeyValidSamples, &numPageSamples)) {
                         numPageSamples = -1;
                     }
                     memcpy(in_buffer->base() + cpLen, &numPageSamples, sizeof(numPageSamples));
@@ -393,7 +393,7 @@
             *buffer = new MediaBuffer(out_size);
             CHECK_LE(out_buffer->size(), (*buffer)->size());
             memcpy((*buffer)->data(), out_buffer->data(), out_buffer->size());
-            (*buffer)->meta_data()->setInt64(kKeyTime, out_pts);
+            (*buffer)->meta_data().setInt64(kKeyTime, out_pts);
             mCodec->releaseOutputBuffer(out_ix);
         }
         return OK;
diff --git a/media/libstagefright/codec2/SimpleC2Component.cpp b/media/libstagefright/codec2/SimpleC2Component.cpp
index c345783..333cfeb 100644
--- a/media/libstagefright/codec2/SimpleC2Component.cpp
+++ b/media/libstagefright/codec2/SimpleC2Component.cpp
@@ -226,7 +226,9 @@
         releasing = std::move(state->mThread);
     }
     mExitRequested = true;
-    releasing.join();
+    if (releasing.joinable()) {
+        releasing.join();
+    }
     onRelease();
     return C2_OK;
 }
diff --git a/media/libstagefright/codec2/SimpleC2Interface.cpp b/media/libstagefright/codec2/SimpleC2Interface.cpp
index f082243..d159426 100644
--- a/media/libstagefright/codec2/SimpleC2Interface.cpp
+++ b/media/libstagefright/codec2/SimpleC2Interface.cpp
@@ -45,15 +45,38 @@
     if (heapParams) {
         heapParams->clear();
         for (const auto &index : heapParamIndices) {
-            if (index.coreIndex() != C2StreamFormatConfig::CORE_INDEX
-                    || !index.forStream()
-                    || index.stream() != 0u) {
-                heapParams->push_back(nullptr);
-            }
-            if (index.forInput()) {
-                heapParams->push_back(C2Param::Copy(mInputFormat));
-            } else {
-                heapParams->push_back(C2Param::Copy(mOutputFormat));
+            switch (index.type()) {
+                case C2StreamFormatConfig::input::PARAM_TYPE:
+                    if (index.stream() == 0u) {
+                        heapParams->push_back(C2Param::Copy(mInputFormat));
+                    } else {
+                        heapParams->push_back(nullptr);
+                    }
+                    break;
+                case C2StreamFormatConfig::output::PARAM_TYPE:
+                    if (index.stream() == 0u) {
+                        heapParams->push_back(C2Param::Copy(mOutputFormat));
+                    } else {
+                        heapParams->push_back(nullptr);
+                    }
+                    break;
+                case C2PortMimeConfig::input::PARAM_TYPE:
+                    if (mInputMediaType) {
+                        heapParams->push_back(C2Param::Copy(*mInputMediaType));
+                    } else {
+                        heapParams->push_back(nullptr);
+                    }
+                    break;
+                case C2PortMimeConfig::output::PARAM_TYPE:
+                    if (mOutputMediaType) {
+                        heapParams->push_back(C2Param::Copy(*mOutputMediaType));
+                    } else {
+                        heapParams->push_back(nullptr);
+                    }
+                    break;
+                default:
+                    heapParams->push_back(nullptr);
+                    break;
             }
         }
     }
diff --git a/media/libstagefright/codec2/hidl/interfaces/1.0/Android.bp b/media/libstagefright/codec2/hidl/interfaces/1.0/Android.bp
new file mode 100644
index 0000000..e75ef24
--- /dev/null
+++ b/media/libstagefright/codec2/hidl/interfaces/1.0/Android.bp
@@ -0,0 +1,56 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_package_root {
+    name: "vendor.google.media.c2",
+    path: "frameworks/av/media/libstagefright/codec2/hidl/interfaces",
+}
+
+hidl_interface {
+    name: "vendor.google.media.c2@1.0",
+    root: "vendor.google.media.c2",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "IComponent.hal",
+        "IComponentInterface.hal",
+        "IComponentListener.hal",
+        "IComponentStore.hal",
+        "IConfigurable.hal",
+        "IInputSurface.hal",
+        "IInputSurfaceConnection.hal",
+    ],
+    interfaces: [
+        "android.hardware.graphics.bufferqueue@1.0",
+        "android.hardware.graphics.common@1.0",
+        "android.hardware.media.bufferpool@1.0",
+        "android.hardware.media.omx@1.0",
+        "android.hardware.media@1.0",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "Block",
+        "BlockId",
+        "Buffer",
+        "FieldDescriptor",
+        "FieldId",
+        "FieldSupportedValues",
+        "FieldSupportedValuesQuery",
+        "FieldSupportedValuesQueryResult",
+        "FieldType",
+        "FrameData",
+        "InfoBuffer",
+        "ParamDescriptor",
+        "ParamField",
+        "ParamFieldValues",
+        "SettingResult",
+        "Status",
+        "StructDescriptor",
+        "Work",
+        "WorkOrdinal",
+        "Worklet",
+    ],
+    gen_java: false,
+}
+
diff --git a/media/libstagefright/codec2/hidl/interfaces/1.0/IComponent.hal b/media/libstagefright/codec2/hidl/interfaces/1.0/IComponent.hal
new file mode 100644
index 0000000..b1b4fc2
--- /dev/null
+++ b/media/libstagefright/codec2/hidl/interfaces/1.0/IComponent.hal
@@ -0,0 +1,311 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package vendor.google.media.c2@1.0;
+
+import android.hardware.graphics.bufferqueue@1.0::IGraphicBufferProducer;
+import android.hardware.media.omx@1.0::IGraphicBufferSource;
+
+import IConfigurable;
+import IComponentInterface;
+import IComponentListener;
+import IInputSurface;
+
+/**
+ * Interface for a Codec 2.0 component corresponding to API level 1.0 or
+ * below. Components have two states: stopped and running. The running
+ * state has three sub-states: executing, tripped and error.
+ */
+interface IComponent extends IComponentInterface {
+
+    // METHODS AVAILABLE WHEN RUNNING
+    // =========================================================================
+
+    /**
+     * Queues up work for the component.
+     *
+     * This method must be supported in running (including tripped) states.
+     *
+     * This method must return within 1ms
+     *
+     * It is acceptable for this method to return OK and return an error value
+     * using the onWorkDone() callback.
+     *
+     * @param workBundle WorkBundle object containing Works to queue to the
+     * component.
+     * @return status Status of the call, which may be
+     *   - OK        - Works in \p workBundle were successfully queued.
+     *   - BAD_INDEX - Some component(s) in some Work do(es) not exist.
+     *   - CANNOT_DO - The components are not tunneled.
+     *   - NO_MEMORY - Not enough memory to queue \p workBundle.
+     *   - CORRUPTED - Some unknown error prevented queuing the Works.
+     *                 (unexpected).
+     */
+    queue(WorkBundle workBundle) generates (Status status);
+
+    /**
+     * Discards and abandons any pending work for the component.
+     *
+     * This method must be supported in running (including tripped) states.
+     *
+     * This method must return within 5ms.
+     *
+     * Work that could be immediately abandoned/discarded must be returned in
+     * \p flushedWorks; this can be done in an arbitrary order.
+     *
+     * Work that could not be abandoned or discarded immediately must be marked
+     * to be discarded at the earliest opportunity, and must be returned via
+     * the onWorkDone() callback. This must be completed within 500ms.
+     *
+     * @return status Status of the call, which may be
+     *   - OK        - The component has been successfully flushed.
+     *   - TIMED_OUT - The flush could not be completed within the time limit.
+     *                 (unexpected)
+     *   - CORRUPTED - Some unknown error prevented flushing from
+     *                 completion. (unexpected)
+     * @return flushedWorkBundle WorkBundle object containing flushed Works.
+     */
+    flush(
+        ) generates (
+            Status status,
+            WorkBundle flushedWorkBundle
+        );
+
+    /**
+     * Drains the component, and optionally downstream components. This is a
+     * signalling method; as such it does not wait for any work completion.
+     *
+     * Marks last work item as "drain-till-here", so component is notified not
+     * to wait for further work before it processes work already queued. This
+     * method can also be used to set the end-of-stream flag after work has been
+     * queued. Client can continue to queue further work immediately after this
+     * method returns.
+     *
+     * This method must be supported in running (including tripped) states.
+     *
+     * This method must return within 1ms.
+     *
+     * Work that is completed must be returned via the onWorkDone() callback.
+     *
+     * @param withEos Whether to drain the component with marking end-of-stream.
+     * @return status Status of the call, which may be
+     *   - OK        - The drain request has been successfully recorded.
+     *   - TIMED_OUT - The flush could not be completed within the time limit.
+     *                 (unexpected)
+     *   - CORRUPTED - Some unknown error prevented flushing from completion.
+     *                 (unexpected)
+     */
+    drain(bool withEos) generates (Status status);
+
+    /**
+     * Starts using a persistent input surface for a component.
+     *
+     * The component must be in running state.
+     *
+     * @param surface A persistent input surface to use for codec input.
+     * @return status Status of the call, which may be
+     *   - OK        - The operation completed successfully.
+     *   - CANNOT_DO - The component does not support an input surface.
+     *   - BAD_STATE - Component is not in running state.
+     *   - DUPLICATE - The component is already connected to an input surface.
+     *   - REFUSED   - The input surface is already in use.
+     *   - NO_MEMORY - Not enough memory to start the component.
+     *   - TIMED_OUT - The component could not be connected within the time
+     *                 limit. (unexpected)
+     *   - CORRUPTED - Some unknown error prevented connecting the component.
+     *                 (unexpected)
+     */
+    connectToInputSurface(IInputSurface surface) generates (Status status);
+
+    /**
+     * Starts using a persistent OMX input surface for a component.
+     *
+     * The component must be in running state.
+     *
+     * @param producer Producer component of an OMX persistent input surface.
+     * @param source Source component of an OMX persistent input surface.
+     * @return status Status of the call, which may be
+     *   - OK        - The operation completed successfully.
+     *   - CANNOT_DO - The component does not support an input surface.
+     *   - BAD_STATE - Component is not in running state.
+     *   - DUPLICATE - The component is already connected to an input surface.
+     *   - REFUSED   - The input surface is already in use.
+     *   - NO_MEMORY - Not enough memory to start the component.
+     *   - TIMED_OUT - The component could not be connected within the time
+     *                 limit. (unexpected)
+     *   - CORRUPTED - Some unknown error prevented connecting the component.
+     *                 (unexpected)
+     */
+    connectToOmxInputSurface(
+            IGraphicBufferProducer producer,
+            IGraphicBufferSource source
+        ) generates (Status status);
+
+    /**
+     * Stops using an input surface.
+     *
+     * This call is used for both Codec 2.0 and OMX input surfaces.
+     *
+     * The component must be in running state.
+     *
+     * @return status Status of the call, which may be
+     *   - OK        - The operation completed successfully.
+     *   - CANNOT_DO - The component does not support an input surface.
+     *   - BAD_STATE - Component is not in running state.
+     *   - NOT_FOUND - The component is not connected to an input surface.
+     *   - TIMED_OUT - The component could not be connected within the time
+     *                 limit. (unexpected)
+     *   - CORRUPTED - Some unknown error prevented connecting the component.
+     *                 (unexpected)
+     */
+    disconnectFromInputSurface() generates (Status Status);
+
+    /**
+     * Creates a local block pool backed by the given allocator and returns its
+     * identifier.
+     *
+     * This call must return within 100 msec.
+     *
+     * @param allocatorId The Codec 2.0 allocator ID
+     * @return status Status of the call, which may be
+     *   - OK        - The operation completed successfully.
+     *   - NO_MEMORY - Not enough memory to create the pool.
+     *   - BAD_VALUE - Invalid allocator.
+     *   - TIMED_OUT - The pool could not be created within the time
+     *                 limit. (unexpected)
+     *   - CORRUPTED - Some unknown error prevented creating the pool.
+     *                 (unexpected)
+     * @return blockPoolId The Codec 2.0 blockpool ID for the created pool.
+     * @return configurable Configuration interface for the created pool.
+     */
+    createBlockPool(uint32_t allocatorId) generates (
+        Status status,
+        uint64_t blockPoolId,
+        IConfigurable configurable
+    );
+
+    // STATE CHANGE METHODS
+    // =========================================================================
+
+    /**
+     * Starts the component.
+     *
+     * This method must be supported in stopped state as well as tripped state.
+     *
+     * If the return value is OK, the component must be in the running state.
+     * If the return value is BAD_STATE or DUPLICATE, no state change is
+     * expected as a response to this call.
+     * Otherwise, the component must be in the stopped state.
+     *
+     * If a component is in the tripped state and start() is called while the
+     * component configuration still results in a trip, start must succeed and
+     * a new onTripped callback must be used to communicate the configuration
+     * conflict that results in the new trip.
+     *
+     * This method must return within 500ms.
+     *
+     * @return status Status of the call, which may be
+     *   - OK        - The component has started successfully.
+     *   - BAD_STATE - Component is not in stopped or tripped state.
+     *   - DUPLICATE - When called during another start call from another
+     *                 thread.
+     *   - NO_MEMORY - Not enough memory to start the component.
+     *   - TIMED_OUT - The component could not be started within the time limit.
+     *                 (unexpected)
+     *   - CORRUPTED - Some unknown error prevented starting the component.
+     *                 (unexpected)
+     */
+    start() generates (Status status);
+
+    /**
+     * Stops the component.
+     *
+     * This method must be supported in running (including tripped) state.
+     *
+     * This method must return withing 500ms.
+     *
+     * Upon this call, all pending work must be abandoned.
+     * If the return value is BAD_STATE or DUPLICATE, no state change is
+     * expected as a response to this call.
+     * For all other return values, the component must be in the stopped state.
+     *
+     * This does not alter any settings and tunings that may have resulted in a
+     * tripped state.
+     *
+     * @return status Status of the call, which may be
+     *   - OK        - The component has stopped successfully.
+     *   - BAD_STATE - Component is not in running state.
+     *   - DUPLICATE - When called during another stop call from another thread.
+     *   - TIMED_OUT - The component could not be stopped within the time limit.
+     *                 (unexpected)
+     *   - CORRUPTED - Some unknown error prevented starting the component.
+     *                 (unexpected)
+     */
+    stop() generates (Status status);
+
+    /**
+     * Resets the component.
+     *
+     * This method must be supported in all (including tripped) states other
+     * than released.
+     *
+     * This method must be supported during any other blocking call.
+     *
+     * This method must return withing 500ms.
+     *
+     * After this call returns all work must have been abandoned, all references
+     * must have been released.
+     *
+     * If the return value is BAD_STATE or DUPLICATE, no state change is
+     * expected as a response to this call.
+     * For all other return values, the component shall be in the stopped state.
+     *
+     * This brings settings back to their default - "guaranteeing" no tripped
+     * state.
+     *
+     * @return status Status of the call, which may be
+     *   - OK        - The component has been reset.
+     *   - BAD_STATE - Component is in released state.
+     *   - DUPLICATE - When called during another reset call from another
+     *                 thread.
+     *   - TIMED_OUT - The component could not be reset within the time limit.
+     *                 (unexpected)
+     *   - CORRUPTED - Some unknown error prevented resetting the component.
+     *                 (unexpected)
+     */
+    reset() generates (Status status);
+
+    /**
+     * Releases the component.
+     *
+     * This method must be supported in stopped state.
+     *
+     * This method must return withing 500ms. Upon return all references must
+     * be abandoned.
+     *
+     * @return status Status of the call, which may be
+     *   - OK        - The component has been released.
+     *   - BAD_STATE - The component is running.
+     *   - DUPLICATE - The component is already released.
+     *   - TIMED_OUT - The component could not be released within the time
+     *                 limit. (unexpected)
+     *   - CORRUPTED - Some unknown error prevented releasing the component.
+     *                 (unexpected)
+     */
+    release() generates (Status status);
+
+};
+
diff --git a/media/libstagefright/codec2/hidl/interfaces/1.0/IComponentInterface.hal b/media/libstagefright/codec2/hidl/interfaces/1.0/IComponentInterface.hal
new file mode 100644
index 0000000..7014998
--- /dev/null
+++ b/media/libstagefright/codec2/hidl/interfaces/1.0/IComponentInterface.hal
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package vendor.google.media.c2@1.0;
+
+import IConfigurable;
+
+/**
+ * Component interface object. This object contains all of the configuration of
+ * a potential or actual component. It can be created and used independently of
+ * an actual Codec 2.0 component instance to query support and parameters for
+ * various component settings and configurations for a potential component.
+ * Actual components also expose this interface.
+ */
+interface IComponentInterface extends IConfigurable {
+    /*
+     * There are no additional methods to IConfigurable interface.
+     *
+     * Component interfaces have no states.
+     *
+     * The name of the component or component interface object is a unique name
+     * for that component or component interface 'class'; however, multiple
+     * instances of that component must have the same name.
+     */
+};
+
diff --git a/media/libstagefright/codec2/hidl/interfaces/1.0/IComponentListener.hal b/media/libstagefright/codec2/hidl/interfaces/1.0/IComponentListener.hal
new file mode 100644
index 0000000..d1a681a
--- /dev/null
+++ b/media/libstagefright/codec2/hidl/interfaces/1.0/IComponentListener.hal
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package vendor.google.media.c2@1.0;
+
+/**
+ * This callback interface is used for handling notifications from IComponent.
+ */
+interface IComponentListener {
+
+    /**
+     * Notify the listener that some works have been completed.
+     */
+    oneway onWorkDone(WorkBundle workBundle);
+
+    /**
+     * Notify the listener that the component is tripped.
+     */
+    oneway onTripped(vec<SettingResult> settingResults);
+
+    /**
+     * Notify the listener of an error.
+     *
+     * @param status The error type. \p status may be `OK`, which means that an
+     *     error has occurred, but the error type is unknown.
+     * @param errorCode Additional error code. The framework may not recognize
+     *     this.
+     */
+    oneway onError(Status status, uint32_t errorCode);
+
+};
+
diff --git a/media/libstagefright/codec2/hidl/interfaces/1.0/IComponentStore.hal b/media/libstagefright/codec2/hidl/interfaces/1.0/IComponentStore.hal
new file mode 100644
index 0000000..eae5b72
--- /dev/null
+++ b/media/libstagefright/codec2/hidl/interfaces/1.0/IComponentStore.hal
@@ -0,0 +1,213 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package vendor.google.media.c2@1.0;
+
+import android.hardware.media.bufferpool@1.0::IClientManager;
+import IComponentInterface;
+import IComponentListener;
+import IComponent;
+import IConfigurable;
+import IInputSurface;
+
+interface IComponentStore extends IConfigurable {
+
+    /**
+     * Creates a component by name.
+     *
+     * This method must return within 100ms.
+     *
+     * @param name Name of the component to create. This should match one of the
+     *     names returned by listComponents().
+     * @param listener The component listener to use for the component.
+     * @param pool The buffer pool client manager of the component listener.
+     *     This must be null if the listener process does not own a buffer pool.
+     * @return status Status of the call, which may be
+     *   - OK        - The component was created successfully.
+     *   - NOT_FOUND - There is no component with the given name.
+     *   - NO_MEMORY - Not enough memory to create the component.
+     *   - TIMED_OUT - The component could not be created within the time limit.
+     *                 (unexpected)
+     *   - CORRUPTED - Some unknown error prevented the creation of the
+     *                 component. (unexpected)
+     * @return comp The created component if `Status = OK`.
+     */
+    createComponent(
+            string name,
+            IComponentListener listener,
+            IClientManager pool
+        ) generates (
+            Status status,
+            IComponent comp
+        );
+
+    /**
+     * Creates a component interface by name.
+     *
+     * This method must return within 100ms.
+     *
+     * @param name Name of the component interface to create. This should match
+     *     one of the names returned by listComponents().
+     * @return status Status of the call, which may be
+     *   - OK        - The component interface was created successfully.
+     *   - NOT_FOUND - There is no component interface with the given name.
+     *   - NO_MEMORY - Not enough memory to create the component interface.
+     *   - TIMED_OUT - The component interface could not be created within the
+     *                 time limit. (unexpected)
+     *   - CORRUPTED - Some unknown error prevented the creation of the
+     *                 component interface. (unexpected)
+     * @return compIntf The created component interface if `Status = OK`.
+     */
+    createInterface(
+            string name
+        ) generates (
+            Status status,
+            IComponentInterface compIntf
+        );
+
+    /**
+     * Component traits.
+     */
+    struct ComponentTraits {
+        /**
+         * Name of the component.
+         */
+        string name;
+
+        enum Domain : uint32_t {
+            AUDIO,
+            VIDEO,
+            OTHER = 0xffffffff,
+        };
+        /**
+         * Component domain. The framework may not recognize `OTHER`.
+         */
+        Domain domain;
+        /**
+         * If #domain is `OTHER`, #domainOther can be used to provide additional
+         * information. Otherwise, #domainOther is ignored. The framework may
+         * not inspect this value.
+         */
+        uint32_t domainOther;
+
+        enum Kind : uint32_t {
+            DECODER,
+            ENCODER,
+            OTHER = 0xffffffff,
+        };
+        /**
+         * Component kind. The framework may not recognize `OTHER`.
+         */
+        Kind kind;
+        /**
+         * If #kind is `OTHER`, #kindOther can be used to provide additional
+         * information. Otherwise, #kindOther is ignored. The framework may not
+         * inspect this value.
+         */
+        uint32_t kindOther;
+
+        /**
+         * Rank used by MediaCodecList to determine component ordering. Lower
+         * value means higher priority.
+         */
+        uint32_t rank;
+
+        /**
+         * Media type.
+         */
+        string mediaType;
+
+        /**
+         * Aliases for component name for backward compatibility.
+         *
+         * \note Multiple components can have the same alias (but not the same
+         * component name) as long as their media types differ.
+         */
+        vec<string> aliases;
+    };
+
+    /**
+     * Returns the list of components supported by this component store.
+     *
+     * This method must return within 500ms.
+     *
+     * @return traits List of component traits for all components supported by this store in no
+     * particular order.
+     */
+    listComponents() generates (vec<ComponentTraits> traits);
+
+    /**
+     * Creates a persistent input surface that can be used as an input surface
+     * for any IComponent instance
+     *
+     * This method must return within 100ms.
+     *
+     * @return surface A persistent input surface
+     */
+    createInputSurface() generates (IInputSurface surface);
+
+    /**
+     * Returns a list of StructDescriptor object for a set of requested
+     * structures that this store is aware of.
+     *
+     * This operation must be performed at best effort, e.g. the component
+     * store must simply ignore all struct indices that it is not aware of.
+     *
+     * @param indices struct indices to return des
+     * @return status Status of the call, which may be
+     *   - OK        - The operation completed successfully.
+     *   - NOT_FOUND - Some indices were not known.
+     *   - NO_MEMORY - Not enough memory to complete this method.
+     * @return structs List of StructDescriptor objects.
+     */
+    getStructDescriptors(
+            vec<ParamIndex> indices
+        ) generates (
+            Status status,
+            vec<StructDescriptor> structs
+        );
+
+    /**
+     * Returns information required for using BufferPool API in buffer passing.
+     * If the returned pool is not null, the client can call registerSender() to
+     * register its IAccessor instance, hence allowing the client to send
+     * buffers to components hosted by this process.
+     *
+     * @return pool If the component store supports receiving buffers via
+     *     BufferPool API, \p pool must be a valid `IClientManager` instance.
+     *     Otherwise, \p pool must be null.
+     */
+    getPoolClientManager(
+        ) generates (
+            IClientManager pool
+        );
+
+    /**
+     * The store must copy the contents of \p src into \p dst without changing
+     * the format of \p dst.
+     *
+     * @param src Source buffer.
+     * @param dst Destination buffer.
+     * @return status Status of the call, which may be
+     *   - OK        - The copy is successful.
+     *   - CANNOT_DO - \p src and \p dst are not compatible.
+     *   - REFUSED   - No permission to copy.
+     *   - CORRUPTED - The copy cannot be done. (unexpected)
+     */
+    copyBuffer(Buffer src, Buffer dst) generates (Status status);
+
+};
+
diff --git a/media/libstagefright/codec2/hidl/interfaces/1.0/IConfigurable.hal b/media/libstagefright/codec2/hidl/interfaces/1.0/IConfigurable.hal
new file mode 100644
index 0000000..83447ad
--- /dev/null
+++ b/media/libstagefright/codec2/hidl/interfaces/1.0/IConfigurable.hal
@@ -0,0 +1,161 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package vendor.google.media.c2@1.0;
+
+/**
+ * Generic configuration interface used by all configurable Codec 2.0
+ * components.
+ *
+ * This interface must be supported in all states of the inheriting
+ * object, and must not change the state of the inheriting object.
+ */
+interface IConfigurable {
+    /**
+     * Returns the name of this object. This must match the name that was
+     * supplied during the creation of the object.
+     *
+     * @return name Name of this object.
+     */
+    getName() generates (string name);
+
+    /**
+     * Queries a set of parameters from the object. Querying is performed at
+     * best effort: the object must query all supported parameters and skip
+     * unsupported ones, or parameters that could not be allocated. Any errors
+     * are communicated in the return value.
+     *
+     * \note Parameter values do not depend on the order of query.
+     *
+     * This method must return within 1ms if \p mayBlock is DONT_BLOCK, and
+     * within 5ms otherwise.
+     *
+     * @param indices List of param indices for params to be queried.
+     * @param mayBlock Whether this call may block or not.
+     * @return status Status of the call, which may be
+     *   - OK        - All parameters could be queried.
+     *   - BAD_INDEX - All supported parameters could be queried, but some
+     *                 parameters were not supported.
+     *   - NO_MEMORY - Could not allocate memory for a supported parameter.
+     *   - BLOCKING  - Querying some parameters requires blocking.
+     *   - CORRUPTED - Some unknown error prevented the querying of the
+     *                 parameters. (unexpected)
+     * @return params List of params queried corresponding to \p indices.
+     */
+    query(
+            vec<ParamIndex> indices,
+            bool mayBlock
+        ) generates (
+            Status status,
+            Params params
+        );
+
+    /**
+     * Sets a set of parameters for the object. Tuning is performed at best
+     * effort: the object must update all supported configuration at best
+     * effort and skip unsupported parameters. Any errors are communicated in
+     * the return value and in \p failures.
+     *
+     * \note Parameter tuning DOES depend on the order of the tuning parameters.
+     * E.g. some parameter update may allow some subsequent parameter update.
+     *
+     * This method must return within 1ms if \p mayBlock is false, and within
+     * 5ms otherwise.
+     *
+     * @param inParams Requested parameter updates.
+     * @param mayBlock Whether this call may block or not.
+     * @return status Status of the call, which may be
+     *   - OK        - All parameters could be updated successfully.
+     *   - BAD_INDEX - All supported parameters could be updated successfully,
+     *                 but some parameters were not supported.
+     *   - NO_MEMORY - Some supported parameters could not be updated
+     *                 successfully because they contained unsupported values.
+     *                 These are returned in \p failures.
+     *   - BLOCKING  - Setting some parameters requires blocking.
+     *   - CORRUPTED - Some unknown error prevented the update of the
+     *                 parameters. (unexpected)
+     * @return failures List of parameter failures.
+     * @return outParams Resulting values for the configured parameters.
+     */
+    config(
+            Params inParams,
+            bool mayBlock
+        ) generates (
+            Status status,
+            vec<SettingResult> failures,
+            Params outParams
+        );
+
+    // REFLECTION MECHANISM
+    // =========================================================================
+
+    /**
+     * Returns a selected range of the set of supported parameters.
+     *
+     * The set of supported parameters are represented in a vector with a
+     * start index of 0, and the selected range are indices into this vector.
+     * Fewer than \p count parameters are returned if the selected range is
+     * not fully/not at all part of the available vector indices.
+     *
+     * This method must return within 1ms.
+     *
+     * @param start start index of selected range
+     * @param count size of the selected
+     * @return status Status of the call, which may be
+     *   - OK        - The operation completed successfully.
+     *   - NO_MEMORY - Not enough memory to complete this method.
+     * @return params Vector containing the selected range of supported
+     *     parameters.
+     */
+    querySupportedParams(
+            uint32_t start,
+            uint32_t count
+        ) generates (
+            Status status,
+            vec<ParamDescriptor> params
+        );
+
+    /**
+     * Retrieves the supported values for the queried fields.
+     *
+     * Upon return the object must fill in the supported
+     * values for the fields listed as well as a status for each field.
+     * Object shall process all fields queried even if some queries fail.
+     *
+     * This method must return within 1ms if \p mayBlock is false, and within
+     * 5ms otherwise.
+     *
+     * @param inFields Vector of field queries.
+     * @param mayBlock Whether this call may block or not.
+     * @return status Status of the call, which may be
+     *   - OK        - The operation completed successfully.
+     *   - BLOCKING  - Querying some parameters requires blocking.
+     *   - NO_MEMORY - Not enough memory to complete this method.
+     *   - BAD_INDEX - At least one field was not recognized as a component
+     *                 field.
+     * @return outFields Vector containing supported values and query result
+     *     for the selected fields.
+     */
+    querySupportedValues(
+            vec<FieldSupportedValuesQuery> inFields,
+            bool mayBlock
+        ) generates (
+            Status status,
+            vec<FieldSupportedValuesQueryResult> outFields
+        );
+
+};
+
diff --git a/media/libstagefright/codec2/hidl/interfaces/1.0/IInputSurface.hal b/media/libstagefright/codec2/hidl/interfaces/1.0/IInputSurface.hal
new file mode 100644
index 0000000..79dd65f
--- /dev/null
+++ b/media/libstagefright/codec2/hidl/interfaces/1.0/IInputSurface.hal
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package vendor.google.media.c2@1.0;
+
+import android.hardware.graphics.bufferqueue@1.0::IGraphicBufferProducer;
+
+import IConfigurable;
+import IInputSurfaceConnection;
+
+/**
+ * Input surface that can be configured for the IComponent.
+ */
+interface IInputSurface extends IGraphicBufferProducer {
+
+    /**
+     * Connects this input surface to a component.
+     *
+     * This call must return within 100 ms.
+     *
+     * @param component The component to connect to. This must have type
+     *     IComponent.
+     * @return status Status of the call, which may be
+     *   - OK        - The operation succeeded.
+     *   - BAD_STATE - The component is in running state.
+     *   - DUPLICATE - The surface is already connected to a component.
+     *   - NO_MEMORY - Could not allocate memory to connect to the component.
+     *   - CORRUPTED - Some unknown error prevented the connection. (unexpected)
+     * @return connection Connection object that is used to disconnect
+     *     from the component.
+     */
+    connectToComponent(
+            interface component
+        ) generates (
+            Status status,
+            IInputSurfaceConnection connection
+        );
+
+    /**
+     * Returns the Codec 2.0 configuration object for this surface.
+     *
+     * @return configurable The configuration object for this surface.
+     */
+    getConfigurable() generates (IConfigurable configurable);
+
+};
+
diff --git a/media/libstagefright/codec2/hidl/interfaces/1.0/IInputSurfaceConnection.hal b/media/libstagefright/codec2/hidl/interfaces/1.0/IInputSurfaceConnection.hal
new file mode 100644
index 0000000..4deabb9
--- /dev/null
+++ b/media/libstagefright/codec2/hidl/interfaces/1.0/IInputSurfaceConnection.hal
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package vendor.google.media.c2@1.0;
+
+interface IInputSurfaceConnection {
+
+    /**
+     * Disconnects this input surface from the component.
+     *
+     * This call must return within 100 ms.
+     *
+     * @return status Status of the call, which may be
+     *   - OK        - The operation succeeded.
+     *   - BAD_STATE - The component is not in running state.
+     *   - NOT_FOUND - The surface is not connected to a component.
+     *   - CORRUPTED - Some unknown error prevented the connection. (unexpected)
+     */
+    disconnect() generates (Status status);
+
+};
+
diff --git a/media/libstagefright/codec2/hidl/interfaces/1.0/types.hal b/media/libstagefright/codec2/hidl/interfaces/1.0/types.hal
new file mode 100644
index 0000000..65b7fec
--- /dev/null
+++ b/media/libstagefright/codec2/hidl/interfaces/1.0/types.hal
@@ -0,0 +1,581 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package vendor.google.media.c2@1.0;
+
+import android.hardware.media.bufferpool@1.0::BufferStatusMessage;
+
+enum Status : int32_t {
+    /** operation completed successfully */
+    OK        = 0,
+
+    // bad input
+
+    /** argument has invalid value (user error) */
+    BAD_VALUE = -22,
+    /** argument uses invalid index (user error) */
+    BAD_INDEX = -75,
+    /** argument/index is valid but not possible */
+    CANNOT_DO = -2147483646,
+
+    // bad sequencing of events
+
+    /** object already exists */
+    DUPLICATE = -17,
+    /** object not found */
+    NOT_FOUND = -2,
+    /** operation is not permitted in the current state */
+    BAD_STATE = -38,
+    /** operation would block but blocking is not permitted */
+    BLOCKING  = -9930,
+
+    // bad environment
+
+    /** not enough memory to complete operation */
+    NO_MEMORY = -12,
+    /** missing permission to complete operation */
+    REFUSED   = -1,
+
+    /** operation did not complete within timeout */
+    TIMED_OUT = -110,
+
+    // missing functionality
+
+    /** operation is not implemented/supported (optional only) */
+    OMITTED   = -74,
+
+    // unknown fatal
+
+    /** some unexpected error prevented the operation */
+    CORRUPTED = -2147483648,
+
+    // uninitialized
+
+    /** status has not been initialized */
+    NO_INIT   = -19,
+};
+
+/**
+ * Codec 2.0 parameter index
+ */
+typedef uint32_t ParamIndex;
+
+/**
+ * Codec 2.0 parameter structure
+ *
+ * The description of a Params is provided by supplying a ParamIndex to
+ * IComponentStore::getStructDescriptors().
+ */
+typedef vec<uint8_t> Params;
+
+/**
+ * Struct uniquely specifying a field in an arbitrary parameter structure.
+ */
+struct FieldId {
+    /** Offset of the field in bytes */
+    uint32_t offset;
+    /** Size of the field in bytes */
+    uint32_t size;
+};
+
+/**
+ * Struct representing a location of a field in a parameter with a given index.
+ */
+struct ParamField {
+    /** Index of the parameter */
+    ParamIndex index;
+    /** Field identifier */
+    FieldId fieldId;
+};
+
+/**
+ * Struct describing basic properties of a parameter with a given index.
+ */
+struct ParamDescriptor {
+    /** Parameter index */
+    ParamIndex index;
+
+    enum Attrib : uint32_t {
+        IS_REQUIRED   = 1u << 0,
+        IS_PERSISTENT = 1u << 1,
+    };
+    /** Parameter attributes */
+    bitfield<Attrib> attrib;
+
+    /** Parameter name */
+    string name;
+
+    /** index of other parameters that this parameter depends on */
+    vec<ParamIndex> dependencies;
+};
+
+// Generic way to describe supported numeric values for Codec 2.0 interfaces.
+
+/**
+ * An untyped value that can fit on 64 bits - the type of which is communicated
+ * via a separate channel (FieldType).
+ */
+typedef uint64_t PrimitiveValue;
+
+/*
+ * Generic supported values for a field.
+ *
+ * This can be either a range or a set of values. The range can be linear or
+ * geometric with clear minimum and maximum values, and can have an optional
+ * step size or geometric ratio. Values can optionally represent flags.
+ */
+struct FieldSupportedValues {
+    struct Range {
+        PrimitiveValue min;
+        PrimitiveValue max;
+        PrimitiveValue step;
+        PrimitiveValue num;
+        PrimitiveValue denom;
+    };
+
+    enum Type : int32_t {
+        /** No supported values */
+        EMPTY,
+        /** Numeric range that can be continuous or discrete */
+        RANGE,
+        /** List of values */
+        VALUES,
+        /** List of flags that can be OR-ed */
+        FLAGS,
+        /** Other representations */
+        OTHER = 0xffffffff,
+    };
+    /**
+     * Type of the supported values. The framework may not recognize `OTHER`.
+     */
+    Type type;
+    /**
+     * Codec2.0 type code of the supported values.
+     *   * If #type is `OTHER`, #typeOther can be used to give more information.
+     *     In this case, the interpretation of this structure is
+     *     implementation-defined.
+     *   * For all other values of #type, #typeOther is not used.
+     * The framework may not inspect this value.
+     */
+    int32_t typeOther;
+
+    /*
+     * If #type = EMPTY, #range and #value are unused.
+     */
+
+    /**
+     * If #type = RANGE, #range will specify the range of possible values.
+     *
+     * The intended type of members of #range will be clear in the context where
+     * FieldSupportedValues is used.
+     */
+    Range range;
+
+    /**
+     * If #type is `VALUES` or `FLAGS`, #value will list supported values.
+     *
+     * The intended type of components of #value will be clear in the context
+     * where FieldSupportedValues is used.
+     */
+    vec<PrimitiveValue> values;
+};
+
+/**
+ * Supported values for a specific field.
+ *
+ * This is a pair of the field specifier together with an optional supported
+ * values object. This structure is used when reporting parameter configuration
+ * failures and conflicts.
+ */
+struct ParamFieldValues {
+    /** the field or parameter */
+    ParamField paramOrField;
+
+    /**
+     * optional supported values for the field if paramOrField specifies an
+     * actual field that is numeric (non struct, blob or string). Supported
+     * values for arrays (including string and blobs) describe the supported
+     * values for each element (character for string, and bytes for blobs). It
+     * is optional for read-only strings and blobs.
+     */
+    vec<FieldSupportedValues> values;
+};
+
+/**
+ * Field descriptor.
+ */
+struct FieldDescriptor {
+
+    /** Field id */
+    FieldId fieldId;
+
+    /**
+     * Possible types of a field.
+     */
+    enum Type : uint32_t {
+        NO_INIT,
+        INT32,
+        UINT32,
+        CNTR32,
+        INT64,
+        UINT64,
+        CNTR64,
+        FLOAT,
+        /**
+         * Fixed-size string (POD)
+         */
+        STRING = 0x100,
+        /**
+         * blobs have no sub-elements and can be thought of as byte arrays.
+         * However, bytes cannot be individually addressed by clients.
+         */
+        BLOB,
+        /**
+         * Structs. Marked with this flag in addition to their coreIndex.
+         */
+        STRUCT_FLAG = 0x20000,
+    };
+    /**
+     * Type of the field.
+     */
+    bitfield<Type> type;
+
+    /** Extent of the field */
+    uint32_t length;
+    /*
+     * Note: the last member of a param struct can be of arbitrary length (e.g.
+     * if it is T[] array, which extends to the last byte of the parameter.)
+     * This is marked with extent 0.
+     */
+
+    /** Name of the field */
+    string name;
+    /** Named value type */
+    struct NamedValue {
+        string name;
+        PrimitiveValue value;
+    };
+    /** Named values for the field */
+    vec<NamedValue> namedValues;
+};
+
+/**
+ * Struct descriptor.
+ */
+struct StructDescriptor {
+    /** Struct type */
+    ParamIndex type;
+    /** Field descriptors for each field */
+    vec<FieldDescriptor> fields;
+};
+
+/**
+ * Information describing the reason a parameter settings may fail, or
+ * may be overriden.
+ */
+struct SettingResult {
+    /** Failure code (of Codec 2.0 SettingResult failure type) */
+    enum Failure : uint32_t {
+        /** Parameter is read-only and cannot be set. */
+        READ_ONLY,
+        /** Parameter mismatches input data. */
+        MISMATCH,
+        /** Parameter does not accept value. */
+        BAD_VALUE,
+        /** Parameter is not supported. */
+        BAD_TYPE,
+        /** Parameter is not supported on the specific port. */
+        BAD_PORT,
+        /** Parameter is not supported on the specific stream. */
+        BAD_INDEX,
+        /** Parameter is in conflict with an/other setting(s). */
+        CONFLICT,
+        /**
+         * Parameter is out of range due to other settings. (This failure mode
+         * can only be used for strict parameters.)
+         */
+        UNSUPPORTED,
+        /**
+         * Requested parameter value is in conflict with an/other setting(s)
+         * and has been corrected to the closest supported value. This failure
+         * mode is given to provide suggestion to the client as to how to enable
+         * the requested parameter value. */
+        INFO_CONFLICT,
+        /**
+         * This failure mode is reported when all the above failure modes do not
+         * apply.
+         */
+        OTHER = 0xffffffff,
+    };
+    /**
+     * The failure type. The framework might not recognize `OTHER`.
+     */
+    Failure failure;
+    /**
+     * The failure code.
+     *   * If #failure is `OTHER`, #failureOther can be used to give more
+     *     information.
+     *   * For all other values of #failure, #failureOther is not used.
+     * The framework may not inspect this value.
+     */
+    uint32_t failureOther;
+
+    /**
+     * Failing (or corrected) field. Currently supported values for the field.
+     * This is set if different from the globally supported values (e.g. due to
+     * restrictions by another param or input data)
+     */
+    ParamFieldValues field;
+
+    /**
+     * Conflicting parameters or fields with
+     * (optional) suggested values for any conflicting fields to avoid the conflict.
+     */
+    vec<ParamFieldValues> conflicts;
+};
+
+/**
+ * Data structure for ordering Work objects. Each member is used for comparing
+ * urgency in the same fashion: a smaller value indicates that the associated
+ * Work object is more urgent.
+ */
+struct WorkOrdinal {
+    /**
+     * Timestamp in microseconds - can wrap around.
+     */
+    uint64_t timestampUs;
+    /**
+     * Frame index - can wrap around.
+     */
+    uint64_t frameIndex;
+    /**
+     * Component specific frame ordinal - can wrap around.
+     */
+    uint64_t customOrdinal;
+};
+
+/**
+ * A structure that holds information of a Block. There are two types of Blocks:
+ * NATIVE and POOLED. Each type has its own way of identifying blocks.
+ */
+struct BaseBlock {
+    enum Type : int32_t {
+        NATIVE,
+        POOLED,
+    };
+    /**
+     * There are two types of blocks: NATIVE and POOLED.
+     */
+    Type type;
+
+    /**
+     * A "NATIVE" block is represented by a native handle.
+     */
+    handle nativeBlock;
+
+    /*
+     * A "POOLED" block is represented by `BufferStatusMessage`.
+     */
+    BufferStatusMessage pooledBlock;
+};
+
+/**
+ * A Block in transfer consists of an index into an array of BaseBlock plus some
+ * extra information. One BaseBlock may occur in multiple blocks in one
+ * `WorkBundle`.
+ */
+struct Block {
+    /**
+     * Identity of the BaseBlock within a WorkBundle. This is an index into the
+     * `baseBlocks` array of a `WorkBundle` object.
+     */
+    uint32_t index;
+    /**
+     * Metadata associated with the block.
+     */
+    Params meta;
+    /**
+     * Fence for synchronizing block access.
+     */
+    handle fence;
+};
+
+/**
+ * Type of buffers processed by a component.
+ */
+struct Buffer {
+    /**
+     * Metadata associated with the buffer.
+     */
+    Params info;
+    /**
+     * Blocks contained in the buffer.
+     */
+    vec<Block> blocks;
+};
+
+/**
+ * An extension of Buffer that also contains an index.
+ */
+struct InfoBuffer {
+    ParamIndex index;
+    Buffer buffer;
+};
+
+/**
+ * This structure represents a frame with its metadata. A frame consists of an
+ * ordered set of buffers, configuration changes, and info buffers along with
+ * some non-configuration metadata.
+ */
+struct FrameData {
+    enum Flags : uint32_t {
+        /**
+         * For input frames: no output frame will be generated when processing
+         * this frame, but metadata must still be processed.
+         * For output frames: this frame must be discarded but metadata is still
+         * valid.
+         */
+        DROP_FRAME    = (1 << 0),
+        /**
+         * This frame is the last frame of the current stream. Further frames
+         * are part of a new stream.
+         */
+        END_OF_STREAM = (1 << 1),
+        /**
+         * This frame must be discarded with its metadata.
+         * This flag is only set by components - e.g. as a response to the flush
+         * command.
+         */
+        DISCARD_FRAME = (1 << 2),
+        /**
+         * This frame contains only codec-specific configuration data, and no
+         * actual access unit.
+         *
+         * \deprecated Pass codec configuration with the codec-specific
+         * configuration info together with the access unit.
+         */
+        CODEC_CONFIG  = (1u << 31),
+    };
+
+    /**
+     * Frame flags.
+     */
+    bitfield<Flags> flags;
+
+    /**
+     * Ordinal of the frame.
+     */
+    WorkOrdinal ordinal;
+
+    /**
+     * Frame buffers.
+     */
+    vec<Buffer> buffers;
+
+    /**
+     * Params determining a configuration update.
+     */
+    Params configUpdate;
+
+    /**
+     * Info buffers.
+     */
+    vec<InfoBuffer> infoBuffers;
+};
+
+/**
+ * Struct for
+ */
+struct Worklet {
+    /**
+     * List of Params describing tunings.
+     */
+    vec<Params> tunings;
+
+    /**
+     * List of failures.
+     */
+    vec<SettingResult> failures;
+
+    /**
+     * Output frame data.
+     */
+    FrameData output;
+
+    /* Note: Component id is not necessary as tunneling is not supported. */
+};
+
+/**
+ * This structure holds information about a single work item. It must be passed
+ * by the client to the component.
+ */
+struct Work {
+    /**
+     * FrameData for the input. Indices of Blocks inside #input refer to
+     * BaseBlocks in the member `blocks` of the containing `WorkBundle`.
+     */
+    FrameData input;
+    /**
+     * Worklet. Indices of Blocks inside `worklet.output` refer to
+     * BaseBlocks in the member `blocks` of the containing `WorkBundle`.
+     */
+    Worklet worklet;
+    /**
+     * Whether the worklet was processed or not.
+     */
+    bool workletProcessed;
+    Status result;
+};
+
+/**
+ * This structure holds a list of Work objects and a list of BaseBlocks.
+ */
+struct WorkBundle {
+    /**
+     * A list of Work items.
+     */
+    vec<Work> works;
+    /**
+     * A list of blocks indexed by elements of #works.
+     */
+    vec<BaseBlock> baseBlocks;
+};
+
+/**
+ * This structure describes a query for supported values of a field. This is
+ * used as input to IConfigurable::queryFieldSupportedValues().
+ */
+struct FieldSupportedValuesQuery {
+    enum Type : uint32_t {
+        /** Query all possible values regardless of other settings */
+        POSSIBLE,
+        /** Query currently possible values given dependent settings */
+        CURRENT,
+    };
+
+    ParamField field;
+    Type type;
+};
+
+/**
+ * This structure is used to hold the result from
+ * IConfigurable::queryFieldSupportedValues().
+ */
+struct FieldSupportedValuesQueryResult {
+    Status status;
+    FieldSupportedValues values;
+};
+
diff --git a/media/libstagefright/codec2/include/C2Component.h b/media/libstagefright/codec2/include/C2Component.h
index 61fcfc0..dbcd82d 100644
--- a/media/libstagefright/codec2/include/C2Component.h
+++ b/media/libstagefright/codec2/include/C2Component.h
@@ -398,7 +398,7 @@
         domain_t domain; ///< component domain (e.g. audio or video)
         kind_t kind; ///< component kind (e.g. encoder, decoder or filter)
         rank_t rank; ///< rank used to determine component ordering (the lower the sooner)
-        C2StringLiteral mediaType; ///< media type supported by the component
+        C2String mediaType; ///< media type supported by the component
 
         /**
          * name alias(es) for backward compatibility.
diff --git a/media/libstagefright/codec2/include/SimpleC2Interface.h b/media/libstagefright/codec2/include/SimpleC2Interface.h
index b934f12..310096f 100644
--- a/media/libstagefright/codec2/include/SimpleC2Interface.h
+++ b/media/libstagefright/codec2/include/SimpleC2Interface.h
@@ -27,13 +27,9 @@
     public:
         inline Builder(
                 const char *name,
-                c2_node_id_t id)
-            : mIntf(new SimpleC2Interface(name, id)) {}
-
-        inline Builder(
-                const char *name,
                 c2_node_id_t id,
-                std::function<void(::android::SimpleC2Interface*)> deleter)
+                std::function<void(C2ComponentInterface*)> deleter =
+                    std::default_delete<C2ComponentInterface>())
             : mIntf(new SimpleC2Interface(name, id), deleter) {}
 
         inline Builder &inputFormat(C2FormatKind input) {
@@ -46,6 +42,28 @@
             return *this;
         }
 
+        inline Builder &inputMediaType(const char *mediaType, size_t maxLen = 128) {
+            mIntf->mInputMediaType = C2PortMimeConfig::input::AllocShared(maxLen);
+            std::strncpy(mIntf->mInputMediaType->m.value, mediaType, maxLen);
+            return *this;
+        }
+
+        inline Builder &outputMediaType(const char *mediaType, size_t maxLen = 128) {
+            mIntf->mOutputMediaType = C2PortMimeConfig::output::AllocShared(maxLen);
+            std::strncpy(mIntf->mOutputMediaType->m.value, mediaType, maxLen);
+            return *this;
+        }
+
+        template<size_t N>
+        inline Builder &inputMediaType(const char mediaType[N]) {
+            return inputMediaType(mediaType, N);
+        }
+
+        template<size_t N>
+        inline Builder &outputMediaType(const char mediaType[N]) {
+            return outputMediaType(mediaType, N);
+        }
+
         inline std::shared_ptr<SimpleC2Interface> build() {
             return mIntf;
         }
@@ -89,6 +107,8 @@
     const c2_node_id_t mId;
     C2StreamFormatConfig::input mInputFormat;
     C2StreamFormatConfig::output mOutputFormat;
+    std::shared_ptr<C2PortMimeConfig::input> mInputMediaType;
+    std::shared_ptr<C2PortMimeConfig::output> mOutputMediaType;
 
     SimpleC2Interface() = delete;
 };
diff --git a/media/libstagefright/codec2/vndk/C2Store.cpp b/media/libstagefright/codec2/vndk/C2Store.cpp
index c4ed2f4..f612b4f 100644
--- a/media/libstagefright/codec2/vndk/C2Store.cpp
+++ b/media/libstagefright/codec2/vndk/C2Store.cpp
@@ -203,9 +203,17 @@
         /**
          * Creates an uninitialized component module.
          *
+         * \param name[in]  component name.
+         *
          * \note Only used by ComponentLoader.
          */
-        ComponentModule() : mInit(C2_NO_INIT) {}
+        ComponentModule()
+            : mInit(C2_NO_INIT),
+              mLibHandle(nullptr),
+              createFactory(nullptr),
+              destroyFactory(nullptr),
+              mComponentFactory(nullptr) {
+        }
 
         /**
          * Initializes a component module with a given library path. Must be called exactly once.
@@ -383,12 +391,35 @@
         std::shared_ptr<C2ComponentInterface> intf;
         c2_status_t res = createInterface(0, &intf);
         if (res != C2_OK) {
+            ALOGD("failed to create interface: %d", res);
             return nullptr;
         }
 
         std::shared_ptr<C2Component::Traits> traits(new (std::nothrow) C2Component::Traits);
         if (traits) {
-            // traits->name = intf->getName();
+            traits->name = intf->getName();
+            // TODO: get this from interface properly.
+            bool encoder = (traits->name.find("encoder") != std::string::npos);
+            uint32_t mediaTypeIndex = encoder ? C2PortMimeConfig::output::PARAM_TYPE
+                    : C2PortMimeConfig::input::PARAM_TYPE;
+            std::vector<std::unique_ptr<C2Param>> params;
+            res = intf->query_vb({}, { mediaTypeIndex }, C2_MAY_BLOCK, &params);
+            if (res != C2_OK) {
+                ALOGD("failed to query interface: %d", res);
+                return nullptr;
+            }
+            if (params.size() != 1u) {
+                ALOGD("failed to query interface: unexpected vector size: %zu", params.size());
+                return nullptr;
+            }
+            C2PortMimeConfig *mediaTypeConfig = (C2PortMimeConfig *)(params[0].get());
+            if (mediaTypeConfig == nullptr) {
+                ALOGD("failed to query media type");
+                return nullptr;
+            }
+            traits->mediaType = mediaTypeConfig->m.value;
+            // TODO: get this properly.
+            traits->rank = 0x200;
         }
 
         mTraits = traits;
diff --git a/media/libstagefright/codecs/aacdec/C2SoftAac.cpp b/media/libstagefright/codecs/aacdec/C2SoftAac.cpp
index 3f09e0a..c82ea45 100644
--- a/media/libstagefright/codecs/aacdec/C2SoftAac.cpp
+++ b/media/libstagefright/codecs/aacdec/C2SoftAac.cpp
@@ -25,6 +25,7 @@
 
 #include <cutils/properties.h>
 #include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/MediaDefs.h>
 #include <media/stagefright/foundation/hexdump.h>
 #include <media/stagefright/MediaErrors.h>
 #include <utils/misc.h>
@@ -50,12 +51,22 @@
 
 namespace android {
 
-C2SoftAac::C2SoftAac(const char *name, c2_node_id_t id)
-    : SimpleC2Component(
-            SimpleC2Interface::Builder(name, id)
+constexpr char kComponentName[] = "c2.google.aac.decoder";
+
+static std::shared_ptr<C2ComponentInterface> BuildIntf(
+        const char *name, c2_node_id_t id,
+        std::function<void(C2ComponentInterface*)> deleter =
+            std::default_delete<C2ComponentInterface>()) {
+    return SimpleC2Interface::Builder(name, id, deleter)
             .inputFormat(C2FormatCompressed)
             .outputFormat(C2FormatAudio)
-            .build()),
+            .inputMediaType(MEDIA_MIMETYPE_AUDIO_AAC)
+            .outputMediaType(MEDIA_MIMETYPE_AUDIO_RAW)
+            .build();
+}
+
+C2SoftAac::C2SoftAac(const char *name, c2_node_id_t id)
+    : SimpleC2Component(BuildIntf(name, id)),
       mAACDecoder(NULL),
       mStreamInfo(NULL),
       mIsADTS(false),
@@ -333,6 +344,7 @@
         const std::unique_ptr<C2Work> &work,
         const std::shared_ptr<C2BlockPool> &pool) {
     work->workletsProcessed = 0u;
+    work->result = C2_OK;
     if (mSignalledError) {
         return;
     }
@@ -675,20 +687,18 @@
 class C2SoftAacDecFactory : public C2ComponentFactory {
 public:
     virtual c2_status_t createComponent(
-            c2_node_id_t id, std::shared_ptr<C2Component>* const component,
-            std::function<void(::C2Component*)> deleter) override {
-        *component = std::shared_ptr<C2Component>(new C2SoftAac("aac", id), deleter);
+            c2_node_id_t id,
+            std::shared_ptr<C2Component>* const component,
+            std::function<void(C2Component*)> deleter) override {
+        *component = std::shared_ptr<C2Component>(new C2SoftAac(kComponentName, id), deleter);
         return C2_OK;
     }
 
     virtual c2_status_t createInterface(
-            c2_node_id_t id, std::shared_ptr<C2ComponentInterface>* const interface,
-            std::function<void(::C2ComponentInterface*)> deleter) override {
-        *interface =
-                SimpleC2Interface::Builder("aac", id, deleter)
-                .inputFormat(C2FormatCompressed)
-                .outputFormat(C2FormatVideo)
-                .build();
+            c2_node_id_t id,
+            std::shared_ptr<C2ComponentInterface>* const interface,
+            std::function<void(C2ComponentInterface*)> deleter) override {
+        *interface = BuildIntf(kComponentName, id, deleter);
         return C2_OK;
     }
 
diff --git a/media/libstagefright/codecs/aacenc/C2SoftAacEnc.cpp b/media/libstagefright/codecs/aacenc/C2SoftAacEnc.cpp
index 74f5a7a..70f6817 100644
--- a/media/libstagefright/codecs/aacenc/C2SoftAacEnc.cpp
+++ b/media/libstagefright/codecs/aacenc/C2SoftAacEnc.cpp
@@ -22,20 +22,31 @@
 
 #include <C2PlatformSupport.h>
 #include <SimpleC2Interface.h>
+#include <media/stagefright/foundation/MediaDefs.h>
 #include <media/stagefright/foundation/hexdump.h>
 
 #include "C2SoftAacEnc.h"
 
 namespace android {
 
+constexpr char kComponentName[] = "c2.google.aac.encoder";
+
+static std::shared_ptr<C2ComponentInterface> BuildIntf(
+        const char *name, c2_node_id_t id,
+        std::function<void(C2ComponentInterface*)> deleter =
+            std::default_delete<C2ComponentInterface>()) {
+    return SimpleC2Interface::Builder(name, id, deleter)
+            .inputFormat(C2FormatAudio)
+            .outputFormat(C2FormatCompressed)
+            .inputMediaType(MEDIA_MIMETYPE_AUDIO_AAC)
+            .outputMediaType(MEDIA_MIMETYPE_AUDIO_RAW)
+            .build();
+}
+
 C2SoftAacEnc::C2SoftAacEnc(
         const char *name,
         c2_node_id_t id)
-    : SimpleC2Component(
-            SimpleC2Interface::Builder(name, id)
-            .inputFormat(C2FormatAudio)
-            .outputFormat(C2FormatCompressed)
-            .build()),
+    : SimpleC2Component(BuildIntf(name, id)),
       mAACEncoder(NULL),
       mNumChannels(1),
       mSampleRate(44100),
@@ -176,6 +187,7 @@
 void C2SoftAacEnc::process(
         const std::unique_ptr<C2Work> &work,
         const std::shared_ptr<C2BlockPool> &pool) {
+    work->result = C2_OK;
     work->workletsProcessed = 0u;
 
     if (mSignalledError) {
@@ -381,20 +393,17 @@
 class C2SoftAacEncFactory : public C2ComponentFactory {
 public:
     virtual c2_status_t createComponent(
-            c2_node_id_t id, std::shared_ptr<C2Component>* const component,
-            std::function<void(::C2Component*)> deleter) override {
-        *component = std::shared_ptr<C2Component>(new C2SoftAacEnc("aacenc", id), deleter);
+            c2_node_id_t id,
+            std::shared_ptr<C2Component>* const component,
+            std::function<void(C2Component*)> deleter) override {
+        *component = std::shared_ptr<C2Component>(new C2SoftAacEnc(kComponentName, id), deleter);
         return C2_OK;
     }
 
     virtual c2_status_t createInterface(
             c2_node_id_t id, std::shared_ptr<C2ComponentInterface>* const interface,
-            std::function<void(::C2ComponentInterface*)> deleter) override {
-        *interface =
-                SimpleC2Interface::Builder("aacenc", id, deleter)
-                .inputFormat(C2FormatAudio)
-                .outputFormat(C2FormatCompressed)
-                .build();
+            std::function<void(C2ComponentInterface*)> deleter) override {
+        *interface = BuildIntf(kComponentName, id, deleter);
         return C2_OK;
     }
 
diff --git a/media/libstagefright/codecs/avcdec/C2SoftAvcDec.cpp b/media/libstagefright/codecs/avcdec/C2SoftAvcDec.cpp
index 3c09e37..b9ba251 100644
--- a/media/libstagefright/codecs/avcdec/C2SoftAvcDec.cpp
+++ b/media/libstagefright/codecs/avcdec/C2SoftAvcDec.cpp
@@ -54,7 +54,7 @@
 
 #define PRINT_TIME  ALOGV
 
-#define componentName                   "video_decoder.avc"
+constexpr char kComponentName[] = "c2.google.avc.decoder";
 // #define codingType                      OMX_VIDEO_CodingAVC
 #define CODEC_MIME_TYPE                 MEDIA_MIMETYPE_VIDEO_AVC
 
@@ -71,6 +71,18 @@
         (IVD_CONTROL_API_COMMAND_TYPE_T)IH264D_CMD_CTL_SET_NUM_CORES
 namespace {
 
+std::shared_ptr<C2ComponentInterface> BuildIntf(
+        const char *name, c2_node_id_t id,
+        std::function<void(C2ComponentInterface*)> deleter =
+            std::default_delete<C2ComponentInterface>()) {
+    return SimpleC2Interface::Builder(name, id, deleter)
+            .inputFormat(C2FormatCompressed)
+            .outputFormat(C2FormatVideo)
+            .inputMediaType(MEDIA_MIMETYPE_VIDEO_AVC)
+            .outputMediaType(MEDIA_MIMETYPE_VIDEO_RAW)
+            .build();
+}
+
 #if 0
 using SupportedValuesWithFields = C2SoftAvcDecIntf::SupportedValuesWithFields;
 
@@ -614,11 +626,7 @@
 C2SoftAvcDec::C2SoftAvcDec(
         const char *name,
         c2_node_id_t id)
-    : SimpleC2Component(
-          SimpleC2Interface::Builder(name, id)
-          .inputFormat(C2FormatCompressed)
-          .outputFormat(C2FormatVideo)
-          .build()),
+    : SimpleC2Component(BuildIntf(name, id)),
       mCodecCtx(NULL),
       mFlushOutBuffer(NULL),
       mIvColorFormat(IV_YUV_420P),
@@ -1327,21 +1335,18 @@
 class C2SoftAvcDecFactory : public C2ComponentFactory {
 public:
     virtual c2_status_t createComponent(
-            c2_node_id_t id, std::shared_ptr<C2Component>* const component,
-            std::function<void(::C2Component*)> deleter) override {
-        *component = std::shared_ptr<C2Component>(new C2SoftAvcDec("avc", id), deleter);
+            c2_node_id_t id,
+            std::shared_ptr<C2Component>* const component,
+            std::function<void(C2Component*)> deleter) override {
+        *component = std::shared_ptr<C2Component>(new C2SoftAvcDec(kComponentName, id), deleter);
         return C2_OK;
     }
 
     virtual c2_status_t createInterface(
-            c2_node_id_t id, std::shared_ptr<C2ComponentInterface>* const interface,
-            std::function<void(::C2ComponentInterface*)> deleter) override {
-        *interface =
-              SimpleC2Interface::Builder("avc", id, deleter)
-              .inputFormat(C2FormatCompressed)
-              .outputFormat(C2FormatVideo)
-              .build();
-//            std::shared_ptr<C2ComponentInterface>(new C2SoftAvcDecIntf("avc", id), deleter);
+            c2_node_id_t id,
+            std::shared_ptr<C2ComponentInterface>* const interface,
+            std::function<void(C2ComponentInterface*)> deleter) override {
+        *interface = BuildIntf(kComponentName, id, deleter);
         return C2_OK;
     }
 
diff --git a/media/libstagefright/codecs/avcenc/C2SoftAvcEnc.cpp b/media/libstagefright/codecs/avcenc/C2SoftAvcEnc.cpp
index e105460..8fb8122 100644
--- a/media/libstagefright/codecs/avcenc/C2SoftAvcEnc.cpp
+++ b/media/libstagefright/codecs/avcenc/C2SoftAvcEnc.cpp
@@ -35,7 +35,9 @@
 
 namespace android {
 
-#define ive_api_function ih264e_api_function
+#define ive_api_function  ih264e_api_function
+
+constexpr char kComponentName[] = "c2.google.avc.encoder";
 
 namespace {
 
@@ -55,6 +57,18 @@
     return (size_t)cpuCoreCount;
 }
 
+std::shared_ptr<C2ComponentInterface> BuildIntf(
+        const char *name, c2_node_id_t id,
+        std::function<void(C2ComponentInterface*)> deleter =
+            std::default_delete<C2ComponentInterface>()) {
+    return SimpleC2Interface::Builder(name, id, deleter)
+            .inputFormat(C2FormatVideo)
+            .outputFormat(C2FormatCompressed)
+            .inputMediaType(MEDIA_MIMETYPE_VIDEO_RAW)
+            .outputMediaType(MEDIA_MIMETYPE_VIDEO_AVC)
+            .build();
+}
+
 void ConvertRGBToPlanarYUV(
         uint8_t *dstY, size_t dstStride, size_t dstVStride,
         const C2GraphicView &src) {
@@ -115,11 +129,7 @@
 }  // namespace
 
 C2SoftAvcEnc::C2SoftAvcEnc(const char *name, c2_node_id_t id)
-    : SimpleC2Component(
-          SimpleC2Interface::Builder(name, id)
-          .inputFormat(C2FormatVideo)
-          .outputFormat(C2FormatCompressed)
-          .build()),
+    : SimpleC2Component(BuildIntf(name, id)),
       mUpdateFlag(0),
       mIvVideoColorFormat(IV_YUV_420P),
       mAVCEncProfile(IV_PROFILE_BASE),
@@ -1209,20 +1219,18 @@
 class C2SoftAvcEncFactory : public C2ComponentFactory {
 public:
     virtual c2_status_t createComponent(
-            c2_node_id_t id, std::shared_ptr<C2Component>* const component,
-            std::function<void(::C2Component*)> deleter) override {
-        *component = std::shared_ptr<C2Component>(new C2SoftAvcEnc("avcenc", id), deleter);
+            c2_node_id_t id,
+            std::shared_ptr<C2Component>* const component,
+            std::function<void(C2Component*)> deleter) override {
+        *component = std::shared_ptr<C2Component>(new C2SoftAvcEnc(kComponentName, id), deleter);
         return C2_OK;
     }
 
     virtual c2_status_t createInterface(
-            c2_node_id_t id, std::shared_ptr<C2ComponentInterface>* const interface,
-            std::function<void(::C2ComponentInterface*)> deleter) override {
-        *interface =
-              SimpleC2Interface::Builder("avcenc", id, deleter)
-              .inputFormat(C2FormatVideo)
-              .outputFormat(C2FormatCompressed)
-              .build();
+            c2_node_id_t id,
+            std::shared_ptr<C2ComponentInterface>* const interface,
+            std::function<void(C2ComponentInterface*)> deleter) override {
+        *interface = BuildIntf(kComponentName, id, deleter);
         return C2_OK;
     }
 
diff --git a/media/libstagefright/codecs/cmds/codec2.cpp b/media/libstagefright/codecs/cmds/codec2.cpp
index 26f96c3..0ec1a77 100644
--- a/media/libstagefright/codecs/cmds/codec2.cpp
+++ b/media/libstagefright/codecs/cmds/codec2.cpp
@@ -309,8 +309,8 @@
 
                 break;
             }
-            sp<MetaData> meta = buffer->meta_data();
-            CHECK(meta->findInt64(kKeyTime, &timestamp));
+            MetaDataBase &meta = buffer->meta_data();
+            CHECK(meta.findInt64(kKeyTime, &timestamp));
 
             size = buffer->size();
             data = buffer->data();
diff --git a/media/libstagefright/codecs/g711/dec/C2SoftG711.cpp b/media/libstagefright/codecs/g711/dec/C2SoftG711.cpp
index e830324..d296a3d 100644
--- a/media/libstagefright/codecs/g711/dec/C2SoftG711.cpp
+++ b/media/libstagefright/codecs/g711/dec/C2SoftG711.cpp
@@ -24,21 +24,37 @@
 #include <SimpleC2Interface.h>
 
 #include <media/stagefright/foundation/ADebug.h>
-
-#ifdef ALAW
-#define COMPONENT_NAME "g711a"
-#else
-#define COMPONENT_NAME "g711m"
-#endif
+#include <media/stagefright/foundation/MediaDefs.h>
 
 namespace android {
 
-C2SoftG711::C2SoftG711(const char *name, c2_node_id_t id)
-    : SimpleC2Component(
-            SimpleC2Interface::Builder(name, id)
+#ifdef ALAW
+constexpr char kComponentName[] = "c2.google.g711.alaw.decoder";
+#else
+constexpr char kComponentName[] = "c2.google.g711.mlaw.decoder";
+#endif
+
+static std::shared_ptr<C2ComponentInterface> BuildIntf(
+        const char *name, c2_node_id_t id,
+        std::function<void(C2ComponentInterface*)> deleter =
+            std::default_delete<C2ComponentInterface>()) {
+    return SimpleC2Interface::Builder(name, id, deleter)
             .inputFormat(C2FormatCompressed)
             .outputFormat(C2FormatAudio)
-            .build()) {
+            .inputMediaType(
+#ifdef ALAW
+                    MEDIA_MIMETYPE_AUDIO_G711_ALAW
+#else
+                    MEDIA_MIMETYPE_AUDIO_G711_MLAW
+#endif
+            )
+            .outputMediaType(MEDIA_MIMETYPE_AUDIO_RAW)
+            .build();
+}
+
+
+C2SoftG711::C2SoftG711(const char *name, c2_node_id_t id)
+    : SimpleC2Component(BuildIntf(name, id)) {
 }
 
 C2SoftG711::~C2SoftG711() {
@@ -206,20 +222,17 @@
 class C2SoftG711DecFactory : public C2ComponentFactory {
 public:
     virtual c2_status_t createComponent(
-            c2_node_id_t id, std::shared_ptr<C2Component>* const component,
-            std::function<void(::C2Component*)> deleter) override {
-        *component = std::shared_ptr<C2Component>(new C2SoftG711(COMPONENT_NAME, id), deleter);
+            c2_node_id_t id,
+            std::shared_ptr<C2Component>* const component,
+            std::function<void(C2Component*)> deleter) override {
+        *component = std::shared_ptr<C2Component>(new C2SoftG711(kComponentName, id), deleter);
         return C2_OK;
     }
 
     virtual c2_status_t createInterface(
             c2_node_id_t id, std::shared_ptr<C2ComponentInterface>* const interface,
-            std::function<void(::C2ComponentInterface*)> deleter) override {
-        *interface =
-                SimpleC2Interface::Builder(COMPONENT_NAME, id, deleter)
-                .inputFormat(C2FormatCompressed)
-                .outputFormat(C2FormatAudio)
-                .build();
+            std::function<void(C2ComponentInterface*)> deleter) override {
+        *interface = BuildIntf(kComponentName, id, deleter);
         return C2_OK;
     }
 
diff --git a/media/libstagefright/codecs/mp3dec/C2SoftMP3.cpp b/media/libstagefright/codecs/mp3dec/C2SoftMP3.cpp
index 9e8b527..9cac87e 100644
--- a/media/libstagefright/codecs/mp3dec/C2SoftMP3.cpp
+++ b/media/libstagefright/codecs/mp3dec/C2SoftMP3.cpp
@@ -26,17 +26,28 @@
 #include <SimpleC2Interface.h>
 
 #include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/MediaDefs.h>
 
 #include <numeric>
 
 namespace android {
 
-C2SoftMP3::C2SoftMP3(const char *name, c2_node_id_t id)
-    : SimpleC2Component(
-            SimpleC2Interface::Builder(name, id)
+constexpr char kComponentName[] = "c2.google.aac.encoder";
+
+static std::shared_ptr<C2ComponentInterface> BuildIntf(
+        const char *name, c2_node_id_t id,
+        std::function<void(C2ComponentInterface*)> deleter =
+            std::default_delete<C2ComponentInterface>()) {
+    return SimpleC2Interface::Builder(name, id, deleter)
             .inputFormat(C2FormatCompressed)
             .outputFormat(C2FormatAudio)
-            .build()),
+            .inputMediaType(MEDIA_MIMETYPE_AUDIO_MPEG)
+            .outputMediaType(MEDIA_MIMETYPE_AUDIO_RAW)
+            .build();
+}
+
+C2SoftMP3::C2SoftMP3(const char *name, c2_node_id_t id)
+    : SimpleC2Component(BuildIntf(name, id)),
       mConfig(nullptr),
       mDecoderBuf(nullptr) {
 }
@@ -397,20 +408,18 @@
 class C2SoftMp3DecFactory : public C2ComponentFactory {
 public:
     virtual c2_status_t createComponent(
-            c2_node_id_t id, std::shared_ptr<C2Component>* const component,
-            std::function<void(::C2Component*)> deleter) override {
-        *component = std::shared_ptr<C2Component>(new C2SoftMP3("mp3", id), deleter);
+            c2_node_id_t id,
+            std::shared_ptr<C2Component>* const component,
+            std::function<void(C2Component*)> deleter) override {
+        *component = std::shared_ptr<C2Component>(new C2SoftMP3(kComponentName, id), deleter);
         return C2_OK;
     }
 
     virtual c2_status_t createInterface(
-            c2_node_id_t id, std::shared_ptr<C2ComponentInterface>* const interface,
-            std::function<void(::C2ComponentInterface*)> deleter) override {
-        *interface =
-                SimpleC2Interface::Builder("mp3", id, deleter)
-                .inputFormat(C2FormatCompressed)
-                .outputFormat(C2FormatAudio)
-                .build();
+            c2_node_id_t id,
+            std::shared_ptr<C2ComponentInterface>* const interface,
+            std::function<void(C2ComponentInterface*)> deleter) override {
+        *interface = BuildIntf(kComponentName, id, deleter);
         return C2_OK;
     }
 
diff --git a/media/libstagefright/data/media_codecs_google_c2.xml b/media/libstagefright/data/media_codecs_google_c2.xml
new file mode 100644
index 0000000..bb78013
--- /dev/null
+++ b/media/libstagefright/data/media_codecs_google_c2.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!-- Copyright 2018 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<MediaCodecs>
+    <Include href="media_codecs_google_c2_audio.xml" />
+    <Include href="media_codecs_google_c2_video.xml" />
+</MediaCodecs>
diff --git a/media/libstagefright/data/media_codecs_google_c2_audio.xml b/media/libstagefright/data/media_codecs_google_c2_audio.xml
new file mode 100644
index 0000000..b86f4ad
--- /dev/null
+++ b/media/libstagefright/data/media_codecs_google_c2_audio.xml
@@ -0,0 +1,97 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<Included>
+    <Decoders>
+        <MediaCodec name="c2.google.mp3.decoder" type="audio/mpeg">
+            <Limit name="channel-count" max="2" />
+            <Limit name="sample-rate" ranges="8000,11025,12000,16000,22050,24000,32000,44100,48000" />
+            <Limit name="bitrate" range="8000-320000" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.amrnb.decoder" type="audio/3gpp">
+            <Limit name="channel-count" max="1" />
+            <Limit name="sample-rate" ranges="8000" />
+            <Limit name="bitrate" range="4750-12200" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.amrwb.decoder" type="audio/amr-wb">
+            <Limit name="channel-count" max="1" />
+            <Limit name="sample-rate" ranges="16000" />
+            <Limit name="bitrate" range="6600-23850" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.aac.decoder" type="audio/mp4a-latm">
+            <Limit name="channel-count" max="8" />
+            <Limit name="sample-rate" ranges="7350,8000,11025,12000,16000,22050,24000,32000,44100,48000" />
+            <Limit name="bitrate" range="8000-960000" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.g711.alaw.decoder" type="audio/g711-alaw">
+            <Limit name="channel-count" max="1" />
+            <Limit name="sample-rate" ranges="8000-48000" />
+            <Limit name="bitrate" range="64000" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.g711.mlaw.decoder" type="audio/g711-mlaw">
+            <Limit name="channel-count" max="1" />
+            <Limit name="sample-rate" ranges="8000-48000" />
+            <Limit name="bitrate" range="64000" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.vorbis.decoder" type="audio/vorbis">
+            <Limit name="channel-count" max="8" />
+            <Limit name="sample-rate" ranges="8000-96000" />
+            <Limit name="bitrate" range="32000-500000" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.opus.decoder" type="audio/opus">
+            <Limit name="channel-count" max="8" />
+            <Limit name="sample-rate" ranges="48000" />
+            <Limit name="bitrate" range="6000-510000" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.raw.decoder" type="audio/raw">
+            <Limit name="channel-count" max="8" />
+            <Limit name="sample-rate" ranges="8000-96000" />
+            <Limit name="bitrate" range="1-10000000" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.flac.decoder" type="audio/flac">
+            <Limit name="channel-count" max="8" />
+            <Limit name="sample-rate" ranges="1-655350" />
+            <Limit name="bitrate" range="1-21000000" />
+        </MediaCodec>
+    </Decoders>
+    <Encoders>
+        <MediaCodec name="c2.google.aac.encoder" type="audio/mp4a-latm">
+            <Limit name="channel-count" max="6" />
+            <Limit name="sample-rate" ranges="8000,11025,12000,16000,22050,24000,32000,44100,48000" />
+            <!-- also may support 64000, 88200  and 96000 Hz -->
+            <Limit name="bitrate" range="8000-960000" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.amrnb.encoder" type="audio/3gpp">
+            <Limit name="channel-count" max="1" />
+            <Limit name="sample-rate" ranges="8000" />
+            <Limit name="bitrate" range="4750-12200" />
+            <Feature name="bitrate-modes" value="CBR" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.amrwb.encoder" type="audio/amr-wb">
+            <Limit name="channel-count" max="1" />
+            <Limit name="sample-rate" ranges="16000" />
+            <Limit name="bitrate" range="6600-23850" />
+            <Feature name="bitrate-modes" value="CBR" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.flac.encoder" type="audio/flac">
+            <Limit name="channel-count" max="2" />
+            <Limit name="sample-rate" ranges="1-655350" />
+            <Limit name="bitrate" range="1-21000000" />
+            <Limit name="complexity" range="0-8"  default="5" />
+            <Feature name="bitrate-modes" value="CQ" />
+        </MediaCodec>
+    </Encoders>
+</Included>
diff --git a/media/libstagefright/data/media_codecs_google_c2_video.xml b/media/libstagefright/data/media_codecs_google_c2_video.xml
new file mode 100644
index 0000000..593463b
--- /dev/null
+++ b/media/libstagefright/data/media_codecs_google_c2_video.xml
@@ -0,0 +1,122 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<Included>
+    <Decoders>
+        <MediaCodec name="c2.google.mpeg4.decoder" type="video/mp4v-es">
+            <!-- profiles and levels:  ProfileSimple : Level3 -->
+            <Limit name="size" min="2x2" max="352x288" />
+            <Limit name="alignment" value="2x2" />
+            <Limit name="block-size" value="16x16" />
+            <Limit name="blocks-per-second" range="12-11880" />
+            <Limit name="bitrate" range="1-384000" />
+            <Feature name="adaptive-playback" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.h263.decoder" type="video/3gpp">
+            <!-- profiles and levels:  ProfileBaseline : Level30, ProfileBaseline : Level45
+                    ProfileISWV2 : Level30, ProfileISWV2 : Level45 -->
+            <Limit name="size" min="2x2" max="352x288" />
+            <Limit name="alignment" value="2x2" />
+            <Limit name="bitrate" range="1-384000" />
+            <Feature name="adaptive-playback" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.avc.decoder" type="video/avc">
+            <!-- profiles and levels:  ProfileHigh : Level52 -->
+            <Limit name="size" min="2x2" max="4080x4080" />
+            <Limit name="alignment" value="2x2" />
+            <Limit name="block-size" value="16x16" />
+            <Limit name="block-count" range="1-32768" /> <!-- max 4096x2048 equivalent -->
+            <Limit name="blocks-per-second" range="1-1966080" />
+            <Limit name="bitrate" range="1-48000000" />
+            <Feature name="adaptive-playback" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.hevc.decoder" type="video/hevc">
+            <!-- profiles and levels:  ProfileMain : MainTierLevel51 -->
+            <Limit name="size" min="2x2" max="4096x4096" />
+            <Limit name="alignment" value="2x2" />
+            <Limit name="block-size" value="8x8" />
+            <Limit name="block-count" range="1-196608" /> <!-- max 4096x3072 -->
+            <Limit name="blocks-per-second" range="1-2000000" />
+            <Limit name="bitrate" range="1-10000000" />
+            <Feature name="adaptive-playback" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.vp8.decoder" type="video/x-vnd.on2.vp8">
+            <Limit name="size" min="2x2" max="2048x2048" />
+            <Limit name="alignment" value="2x2" />
+            <Limit name="block-size" value="16x16" />
+            <Limit name="block-count" range="1-16384" />
+            <Limit name="blocks-per-second" range="1-1000000" />
+            <Limit name="bitrate" range="1-40000000" />
+            <Feature name="adaptive-playback" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.vp9.decoder" type="video/x-vnd.on2.vp9">
+            <Limit name="size" min="2x2" max="2048x2048" />
+            <Limit name="alignment" value="2x2" />
+            <Limit name="block-size" value="16x16" />
+            <Limit name="block-count" range="1-16384" />
+            <Limit name="blocks-per-second" range="1-500000" />
+            <Limit name="bitrate" range="1-40000000" />
+            <Feature name="adaptive-playback" />
+        </MediaCodec>
+    </Decoders>
+
+    <Encoders>
+        <MediaCodec name="c2.google.h263.encoder" type="video/3gpp">
+            <!-- profiles and levels:  ProfileBaseline : Level45 -->
+            <Limit name="size" min="176x144" max="176x144" />
+            <Limit name="alignment" value="16x16" />
+            <Limit name="bitrate" range="1-128000" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.avc.encoder" type="video/avc">
+            <!-- profiles and levels:  ProfileBaseline : Level41 -->
+            <Limit name="size" min="16x16" max="2048x2048" />
+            <Limit name="alignment" value="2x2" />
+            <Limit name="block-size" value="16x16" />
+            <Limit name="block-count" range="1-8192" /> <!-- max 2048x1024 -->
+            <Limit name="blocks-per-second" range="1-245760" />
+            <Limit name="bitrate" range="1-12000000" />
+            <Feature name="intra-refresh" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.mpeg4.encoder" type="video/mp4v-es">
+            <!-- profiles and levels:  ProfileCore : Level2 -->
+            <Limit name="size" min="16x16" max="176x144" />
+            <Limit name="alignment" value="16x16" />
+            <Limit name="block-size" value="16x16" />
+            <Limit name="blocks-per-second" range="12-1485" />
+            <Limit name="bitrate" range="1-64000" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.vp8.encoder" type="video/x-vnd.on2.vp8">
+            <!-- profiles and levels:  ProfileMain : Level_Version0-3 -->
+            <Limit name="size" min="2x2" max="2048x2048" />
+            <Limit name="alignment" value="2x2" />
+            <Limit name="block-size" value="16x16" />
+            <!-- 2016 devices can encode at about 10fps at this block count -->
+            <Limit name="block-count" range="1-16384" />
+            <Limit name="bitrate" range="1-40000000" />
+            <Feature name="bitrate-modes" value="VBR,CBR" />
+        </MediaCodec>
+        <MediaCodec name="c2.google.vp9.encoder" type="video/x-vnd.on2.vp9">
+            <!-- profiles and levels:  ProfileMain : Level_Version0-3 -->
+            <Limit name="size" min="2x2" max="2048x2048" />
+            <Limit name="alignment" value="2x2" />
+            <Limit name="block-size" value="16x16" />
+            <!-- 2016 devices can encode at about 8fps at this block count -->
+            <Limit name="block-count" range="1-3600" /> <!-- max 1280x720 -->
+            <Limit name="bitrate" range="1-40000000" />
+            <Feature name="bitrate-modes" value="VBR,CBR" />
+        </MediaCodec>
+    </Encoders>
+</Included>
diff --git a/media/libstagefright/httplive/PlaylistFetcher.cpp b/media/libstagefright/httplive/PlaylistFetcher.cpp
index 55fc680..5624f4a 100644
--- a/media/libstagefright/httplive/PlaylistFetcher.cpp
+++ b/media/libstagefright/httplive/PlaylistFetcher.cpp
@@ -2066,7 +2066,8 @@
         CHECK_NE(channel_configuration, 0u);
         bits.skipBits(2);  // original_copy, home
 
-        sp<MetaData> meta = MakeAACCodecSpecificData(
+        sp<MetaData> meta = new MetaData();
+        MakeAACCodecSpecificData(*meta,
                 profile, sampling_freq_index, channel_configuration);
 
         meta->setInt32(kKeyIsADTS, true);
diff --git a/media/libstagefright/include/CallbackDataSource.h b/media/libstagefright/include/CallbackDataSource.h
index 32556d6..9f413cd 100644
--- a/media/libstagefright/include/CallbackDataSource.h
+++ b/media/libstagefright/include/CallbackDataSource.h
@@ -42,6 +42,7 @@
         return mName;
     }
     virtual sp<DecryptHandle> DrmInitialization(const char *mime = NULL);
+    virtual sp<IDataSource> getIDataSource() const;
 
 private:
     sp<IDataSource> mIDataSource;
@@ -70,6 +71,7 @@
         return mName;
     }
     virtual sp<DecryptHandle> DrmInitialization(const char *mime = NULL);
+    virtual sp<IDataSource> getIDataSource() const;
 
 private:
     // 2kb comes from experimenting with the time-to-first-frame from a MediaPlayer
diff --git a/media/libstagefright/include/FrameDecoder.h b/media/libstagefright/include/FrameDecoder.h
index c40324b..dfbe2cd 100644
--- a/media/libstagefright/include/FrameDecoder.h
+++ b/media/libstagefright/include/FrameDecoder.h
@@ -68,7 +68,7 @@
 
     virtual status_t onInputReceived(
             const sp<MediaCodecBuffer> &codecBuffer,
-            const sp<MetaData> &sampleMeta,
+            MetaDataBase &sampleMeta,
             bool firstSample,
             uint32_t *flags) = 0;
 
@@ -123,7 +123,7 @@
 
     virtual status_t onInputReceived(
             const sp<MediaCodecBuffer> &codecBuffer,
-            const sp<MetaData> &sampleMeta,
+            MetaDataBase &sampleMeta,
             bool firstSample,
             uint32_t *flags) override;
 
@@ -158,7 +158,7 @@
 
     virtual status_t onInputReceived(
             const sp<MediaCodecBuffer> &codecBuffer __unused,
-            const sp<MetaData> &sampleMeta __unused,
+            MetaDataBase &sampleMeta __unused,
             bool firstSample __unused,
             uint32_t *flags __unused) override { return OK; }
 
diff --git a/media/libstagefright/include/media/stagefright/CCodec.h b/media/libstagefright/include/media/stagefright/CCodec.h
index 24ee0a3..3a2670d 100644
--- a/media/libstagefright/include/media/stagefright/CCodec.h
+++ b/media/libstagefright/include/media/stagefright/CCodec.h
@@ -83,7 +83,7 @@
     void setInputSurface(const sp<PersistentSurface> &surface);
     status_t setupInputSurface(const std::shared_ptr<InputSurfaceWrapper> &surface);
 
-    void setDeadline(const TimePoint &deadline);
+    void setDeadline(const TimePoint &deadline, const char *name);
 
     enum {
         kWhatAllocate,
@@ -126,10 +126,25 @@
         sp<AMessage> outputFormat;
     };
 
+    struct NamedTimePoint {
+        inline void set(
+                const TimePoint &timePoint,
+                const char *name) {
+            mTimePoint = timePoint;
+            mName = name;
+        }
+
+        inline TimePoint get() const { return mTimePoint; }
+        inline const char *getName() const { return mName; }
+    private:
+        TimePoint mTimePoint;
+        const char *mName;
+    };
+
     Mutexed<State> mState;
     std::shared_ptr<CCodecBufferChannel> mChannel;
     std::shared_ptr<C2Component::Listener> mListener;
-    Mutexed<TimePoint> mDeadline;
+    Mutexed<NamedTimePoint> mDeadline;
     Mutexed<Formats> mFormats;
     Mutexed<std::list<std::unique_ptr<C2Work>>> mWorkDoneQueue;
 
diff --git a/media/libstagefright/include/media/stagefright/Codec2InfoBuilder.h b/media/libstagefright/include/media/stagefright/Codec2InfoBuilder.h
new file mode 100644
index 0000000..ea0b5c4
--- /dev/null
+++ b/media/libstagefright/include/media/stagefright/Codec2InfoBuilder.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CODEC2_INFO_BUILDER_H_
+#define CODEC2_INFO_BUILDER_H_
+
+#include <media/stagefright/MediaCodecList.h>
+#include <utils/Errors.h>
+
+namespace android {
+
+class Codec2InfoBuilder : public MediaCodecListBuilderBase {
+public:
+    Codec2InfoBuilder() = default;
+    status_t buildMediaCodecList(MediaCodecListWriter* writer) override;
+};
+
+}  // namespace android
+
+#endif  // CODEC2_INFO_BUILDER_H_
diff --git a/media/libstagefright/include/media/stagefright/InterfaceUtils.h b/media/libstagefright/include/media/stagefright/InterfaceUtils.h
index 568c735..f0ebd48 100644
--- a/media/libstagefright/include/media/stagefright/InterfaceUtils.h
+++ b/media/libstagefright/include/media/stagefright/InterfaceUtils.h
@@ -51,7 +51,7 @@
 // Creates an IMediaSource wrapper to the given MediaSource.
 sp<IMediaSource> CreateIMediaSourceFromMediaSourceBase(
         const sp<RemoteMediaExtractor> &extractor,
-        MediaSourceBase *source, const sp<RefBase> &plugin);
+        MediaTrack *source, const sp<RefBase> &plugin);
 
 }  // namespace android
 
diff --git a/media/libstagefright/include/media/stagefright/MediaCodec.h b/media/libstagefright/include/media/stagefright/MediaCodec.h
index 0bc02af..e7faea5 100644
--- a/media/libstagefright/include/media/stagefright/MediaCodec.h
+++ b/media/libstagefright/include/media/stagefright/MediaCodec.h
@@ -334,8 +334,6 @@
 
     // initial create parameters
     AString mInitName;
-    bool mInitNameIsType;
-    bool mInitIsEncoder;
 
     // configure parameter
     sp<AMessage> mConfigureMsg;
@@ -370,14 +368,14 @@
 
     MediaCodec(const sp<ALooper> &looper, pid_t pid, uid_t uid);
 
-    static sp<CodecBase> GetCodecBase(const AString &name, bool nameIsType = false);
+    static sp<CodecBase> GetCodecBase(const AString &name);
 
     static status_t PostAndAwaitResponse(
             const sp<AMessage> &msg, sp<AMessage> *response);
 
     void PostReplyWithError(const sp<AReplyToken> &replyID, int32_t err);
 
-    status_t init(const AString &name, bool nameIsType, bool encoder);
+    status_t init(const AString &name);
 
     void setState(State newState);
     void returnBuffersToCodec(bool isReclaim = false);
diff --git a/media/libstagefright/include/media/stagefright/MediaCodecList.h b/media/libstagefright/include/media/stagefright/MediaCodecList.h
index f2bd496..d46fe85 100644
--- a/media/libstagefright/include/media/stagefright/MediaCodecList.h
+++ b/media/libstagefright/include/media/stagefright/MediaCodecList.h
@@ -18,6 +18,8 @@
 
 #define MEDIA_CODEC_LIST_H_
 
+#include <initializer_list>
+
 #include <media/stagefright/foundation/ABase.h>
 #include <media/stagefright/foundation/AString.h>
 #include <media/IMediaCodecList.h>
@@ -94,9 +96,9 @@
 
     /**
      * This constructor will call `buildMediaCodecList()` from the given
-     * `MediaCodecListBuilderBase` object.
+     * `MediaCodecListBuilderBase` objects.
      */
-    MediaCodecList(MediaCodecListBuilderBase* builder);
+    MediaCodecList(std::initializer_list<MediaCodecListBuilderBase*> builders);
 
     ~MediaCodecList();
 
diff --git a/media/libstagefright/include/media/stagefright/MediaExtractorFactory.h b/media/libstagefright/include/media/stagefright/MediaExtractorFactory.h
index 90c66eb..fb9f5bd 100644
--- a/media/libstagefright/include/media/stagefright/MediaExtractorFactory.h
+++ b/media/libstagefright/include/media/stagefright/MediaExtractorFactory.h
@@ -33,12 +33,6 @@
 public:
     static sp<IMediaExtractor> Create(
             const sp<DataSource> &source, const char *mime = NULL);
-    // Creates media extractor from the given file descriptor. To avoid binder calls for
-    // reading file data, this tries to create remote file source in extractor service.
-    // If that fails, this falls back to local file source. The data source used for extractor
-    // will be alsp returned with |out|.
-    static sp<IMediaExtractor> CreateFromFd(
-            int fd, int64_t offset, int64_t length, const char *mime, sp<DataSource> *out);
     static sp<IMediaExtractor> CreateFromService(
             const sp<DataSource> &source, const char *mime = NULL);
     static void LoadPlugins(const ::std::string& apkPath);
diff --git a/media/libstagefright/include/media/stagefright/MetaDataBase.h b/media/libstagefright/include/media/stagefright/MetaDataBase.h
new file mode 120000
index 0000000..1e12193
--- /dev/null
+++ b/media/libstagefright/include/media/stagefright/MetaDataBase.h
@@ -0,0 +1 @@
+../../../../libmediaextractor/include/media/stagefright/MetaDataBase.h
\ No newline at end of file
diff --git a/media/libstagefright/include/media/stagefright/MetaDataUtils.h b/media/libstagefright/include/media/stagefright/MetaDataUtils.h
index 7c18bc2..3af2218 100644
--- a/media/libstagefright/include/media/stagefright/MetaDataUtils.h
+++ b/media/libstagefright/include/media/stagefright/MetaDataUtils.h
@@ -23,8 +23,8 @@
 namespace android {
 
 struct ABuffer;
-sp<MetaData> MakeAVCCodecSpecificData(const sp<ABuffer> &accessUnit);
-sp<MetaData> MakeAACCodecSpecificData(unsigned profile, unsigned sampling_freq_index,
+bool MakeAVCCodecSpecificData(MetaDataBase &meta, const sp<ABuffer> &accessUnit);
+bool MakeAACCodecSpecificData(MetaDataBase &meta, unsigned profile, unsigned sampling_freq_index,
         unsigned channel_configuration);
 
 }  // namespace android
diff --git a/media/libstagefright/include/media/stagefright/RemoteDataSource.h b/media/libstagefright/include/media/stagefright/RemoteDataSource.h
index 4ddc5e3..e191e6a 100644
--- a/media/libstagefright/include/media/stagefright/RemoteDataSource.h
+++ b/media/libstagefright/include/media/stagefright/RemoteDataSource.h
@@ -31,6 +31,9 @@
         if (source.get() == nullptr) {
             return nullptr;
         }
+        if (source->getIDataSource().get() != nullptr) {
+            return source->getIDataSource();
+        }
         return new RemoteDataSource(source);
     }
 
diff --git a/media/libstagefright/include/media/stagefright/RemoteMediaSource.h b/media/libstagefright/include/media/stagefright/RemoteMediaSource.h
index a9bf820..1d720af 100644
--- a/media/libstagefright/include/media/stagefright/RemoteMediaSource.h
+++ b/media/libstagefright/include/media/stagefright/RemoteMediaSource.h
@@ -28,7 +28,7 @@
 public:
     static sp<IMediaSource> wrap(
             const sp<RemoteMediaExtractor> &extractor,
-            MediaSourceBase *source,
+            MediaTrack *source,
             const sp<RefBase> &plugin);
     virtual ~RemoteMediaSource();
     virtual status_t start(MetaData *params = NULL);
@@ -42,12 +42,12 @@
 
 private:
     sp<RemoteMediaExtractor> mExtractor;
-    MediaSourceBase *mSource;
+    MediaTrack *mSource;
     sp<RefBase> mExtractorPlugin;
 
     explicit RemoteMediaSource(
             const sp<RemoteMediaExtractor> &extractor,
-            MediaSourceBase *source,
+            MediaTrack *source,
             const sp<RefBase> &plugin);
 
     DISALLOW_EVIL_CONSTRUCTORS(RemoteMediaSource);
diff --git a/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp b/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp
index d0b17e0..8488d10 100644
--- a/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp
+++ b/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp
@@ -203,23 +203,23 @@
         }
 
         MediaBufferBase *mediaBuffer = new MediaBuffer(buffer);
-        sp<MetaData> bufmeta = mediaBuffer->meta_data();
+        MetaDataBase &bufmeta = mediaBuffer->meta_data();
 
-        bufmeta->setInt64(kKeyTime, timeUs);
+        bufmeta.setInt64(kKeyTime, timeUs);
 
         int32_t isSync;
         if (buffer->meta()->findInt32("isSync", &isSync)) {
-            bufmeta->setInt32(kKeyIsSyncFrame, isSync);
+            bufmeta.setInt32(kKeyIsSyncFrame, isSync);
         }
 
         sp<ABuffer> sei;
         if (buffer->meta()->findBuffer("sei", &sei) && sei != NULL) {
-            bufmeta->setData(kKeySEI, 0, sei->data(), sei->size());
+            bufmeta.setData(kKeySEI, 0, sei->data(), sei->size());
         }
 
         sp<ABuffer> mpegUserData;
         if (buffer->meta()->findBuffer("mpegUserData", &mpegUserData) && mpegUserData != NULL) {
-            bufmeta->setData(
+            bufmeta.setData(
                     kKeyMpegUserData, 0, mpegUserData->data(), mpegUserData->size());
         }
 
@@ -234,18 +234,18 @@
             CHECK(buffer->meta()->findBuffer("encBytes", &encBytesBuffer)
                     && encBytesBuffer != NULL);
 
-            bufmeta->setInt32(kKeyCryptoMode, cryptoMode);
+            bufmeta.setInt32(kKeyCryptoMode, cryptoMode);
 
             uint8_t array[16] = {0};
-            bufmeta->setData(kKeyCryptoIV, 0, array, 16);
+            bufmeta.setData(kKeyCryptoIV, 0, array, 16);
 
             array[0] = (uint8_t) (cryptoKey & 0xff);
-            bufmeta->setData(kKeyCryptoKey, 0, array, 16);
+            bufmeta.setData(kKeyCryptoKey, 0, array, 16);
 
-            bufmeta->setData(kKeyPlainSizes, 0,
+            bufmeta.setData(kKeyPlainSizes, 0,
                     clearBytesBuffer->data(), clearBytesBuffer->size());
 
-            bufmeta->setData(kKeyEncryptedSizes, 0,
+            bufmeta.setData(kKeyEncryptedSizes, 0,
                     encBytesBuffer->data(), encBytesBuffer->size());
         }
 
diff --git a/media/libstagefright/mpeg2ts/ESQueue.cpp b/media/libstagefright/mpeg2ts/ESQueue.cpp
index 850face..59fba1a 100644
--- a/media/libstagefright/mpeg2ts/ESQueue.cpp
+++ b/media/libstagefright/mpeg2ts/ESQueue.cpp
@@ -633,7 +633,10 @@
         mBuffer->setRange(0, mBuffer->size() - info.mLength);
 
         if (mFormat == NULL) {
-            mFormat = MakeAVCCodecSpecificData(accessUnit);
+            mFormat = new MetaData;
+            if (!MakeAVCCodecSpecificData(*mFormat, accessUnit)) {
+                mFormat.clear();
+            }
         }
 
         return accessUnit;
@@ -862,7 +865,7 @@
             }
             bits.skipBits(2);  // original_copy, home
 
-            mFormat = MakeAACCodecSpecificData(
+            MakeAACCodecSpecificData(*mFormat,
                     profile, sampling_freq_index, channel_configuration);
 
             mFormat->setInt32(kKeyIsADTS, true);
@@ -1005,9 +1008,9 @@
             return NULL;
         }
         if (mFormat == NULL) {
-            mFormat = MakeAVCCodecSpecificData(mBuffer);
-            if (mFormat == NULL) {
-                ALOGI("Creating dummy AVC format for scrambled content");
+            mFormat = new MetaData;
+            if (!MakeAVCCodecSpecificData(*mFormat, mBuffer)) {
+                ALOGW("Creating dummy AVC format for scrambled content");
                 mFormat = new MetaData;
                 mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
                 mFormat->setInt32(kKeyWidth, 1280);
@@ -1167,7 +1170,10 @@
             }
 
             if (mFormat == NULL) {
-                mFormat = MakeAVCCodecSpecificData(accessUnit);
+                mFormat = new MetaData;
+                if (!MakeAVCCodecSpecificData(*mFormat, accessUnit)) {
+                    mFormat.clear();
+                }
             }
 
             if (mSampleDecryptor != NULL && shrunkBytes > 0) {
diff --git a/media/libstagefright/omx/tests/OMXHarness.cpp b/media/libstagefright/omx/tests/OMXHarness.cpp
index 3d9c791..895a4ce 100644
--- a/media/libstagefright/omx/tests/OMXHarness.cpp
+++ b/media/libstagefright/omx/tests/OMXHarness.cpp
@@ -667,7 +667,7 @@
                 actualSeekTimeUs = -1;
             } else {
                 CHECK(buffer != NULL);
-                CHECK(buffer->meta_data()->findInt64(kKeyTime, &actualSeekTimeUs));
+                CHECK(buffer->meta_data().findInt64(kKeyTime, &actualSeekTimeUs));
                 CHECK(actualSeekTimeUs >= 0);
 
                 buffer->release();
@@ -728,7 +728,7 @@
             CHECK(buffer != NULL);
 
             int64_t bufferTimeUs;
-            CHECK(buffer->meta_data()->findInt64(kKeyTime, &bufferTimeUs));
+            CHECK(buffer->meta_data().findInt64(kKeyTime, &bufferTimeUs));
             if (!CloseEnough(bufferTimeUs, actualSeekTimeUs)) {
                 printf("\n  * Attempted seeking to %" PRId64 " us (%.2f secs)",
                        requestedSeekTimeUs, requestedSeekTimeUs / 1E6);
diff --git a/media/libstagefright/rtsp/ARTPWriter.cpp b/media/libstagefright/rtsp/ARTPWriter.cpp
index 4ce8a0c..0667df1 100644
--- a/media/libstagefright/rtsp/ARTPWriter.cpp
+++ b/media/libstagefright/rtsp/ARTPWriter.cpp
@@ -572,7 +572,7 @@
     CHECK_GE(kMaxPacketSize, 12u + 2u);
 
     int64_t timeUs;
-    CHECK(mediaBuf->meta_data()->findInt64(kKeyTime, &timeUs));
+    CHECK(mediaBuf->meta_data().findInt64(kKeyTime, &timeUs));
 
     uint32_t rtpTime = mRTPTimeBase + (timeUs * 9 / 100ll);
 
@@ -667,7 +667,7 @@
     CHECK_GE(kMaxPacketSize, 12u + 2u);
 
     int64_t timeUs;
-    CHECK(mediaBuf->meta_data()->findInt64(kKeyTime, &timeUs));
+    CHECK(mediaBuf->meta_data().findInt64(kKeyTime, &timeUs));
 
     uint32_t rtpTime = mRTPTimeBase + (timeUs * 9 / 100ll);
 
@@ -752,7 +752,7 @@
     const bool isWide = (mMode == AMR_WB);
 
     int64_t timeUs;
-    CHECK(mediaBuf->meta_data()->findInt64(kKeyTime, &timeUs));
+    CHECK(mediaBuf->meta_data().findInt64(kKeyTime, &timeUs));
     uint32_t rtpTime = mRTPTimeBase + (timeUs / (isWide ? 250 : 125));
 
     // hexdump(mediaData, mediaLength);
diff --git a/media/libstagefright/webm/WebmFrameThread.cpp b/media/libstagefright/webm/WebmFrameThread.cpp
index 0d4c699..23269af 100644
--- a/media/libstagefright/webm/WebmFrameThread.cpp
+++ b/media/libstagefright/webm/WebmFrameThread.cpp
@@ -345,8 +345,8 @@
             continue;
         }
 
-        sp<MetaData> md = buffer->meta_data();
-        CHECK(md->findInt64(kKeyTime, &timestampUs));
+        MetaDataBase &md = buffer->meta_data();
+        CHECK(md.findInt64(kKeyTime, &timestampUs));
         if (mStartTimeUs == kUninitialized) {
             mStartTimeUs = timestampUs;
         }
@@ -374,7 +374,7 @@
         CHECK_GE(timestampUs, 0ll);
 
         int32_t isSync = false;
-        md->findInt32(kKeyIsSyncFrame, &isSync);
+        md.findInt32(kKeyIsSyncFrame, &isSync);
         const sp<WebmFrame> f = new WebmFrame(
             mType,
             isSync,
diff --git a/packages/MediaComponents/res/drawable/ic_audiotrack.xml b/packages/MediaComponents/res/drawable/ic_audiotrack.xml
new file mode 100644
index 0000000..27c12b5
--- /dev/null
+++ b/packages/MediaComponents/res/drawable/ic_audiotrack.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M12,3v9.28c-0.47,-0.17 -0.97,-0.28 -1.5,-0.28C8.01,12 6,14.01 6,16.5S8.01,21 10.5,21c2.31,0 4.2,-1.75 4.45,-4H15V6h4V3h-7z"/>
+</vector>
diff --git a/packages/MediaComponents/res/drawable/ic_check.xml b/packages/MediaComponents/res/drawable/ic_check.xml
new file mode 100644
index 0000000..32f720b
--- /dev/null
+++ b/packages/MediaComponents/res/drawable/ic_check.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+
+    <path
+        android:pathData="M0 0h24v24H0z" />
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M9 16.2L4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4L9 16.2z" />
+</vector>
\ No newline at end of file
diff --git a/packages/MediaComponents/res/drawable/ic_closed_caption_off.xml b/packages/MediaComponents/res/drawable/ic_closed_caption_off.xml
new file mode 100644
index 0000000..a79cd11
--- /dev/null
+++ b/packages/MediaComponents/res/drawable/ic_closed_caption_off.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+
+    <path
+        android:pathData="M0,0h24v24H0V0z" />
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M19,5.5c0.27,0,0.5,0.23,0.5,0.5v12c0,0.27-0.23,0.5-0.5,0.5H5c-0.28,0-0.5-0.22-0.5-0.5V6c0-0.28,0.22-0.5,0.5-0.5H19
+M19,4H5C3.89,4,3,4.9,3,6v12c0,1.1,0.89,2,2,2h14c1.1,0,2-0.9,2-2V6C21,4.9,20.1,4,19,4L19,4z" />
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M11,11H9.5v-0.5h-2v3h2V13H11v1c0,0.55-0.45,1-1,1H7c-0.55,0-1-0.45-1-1v-4c0-0.55,0.45-1,1-1h3c0.55,0,1,0.45,1,1V11z" />
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M18,11h-1.5v-0.5h-2v3h2V13H18v1c0,0.55-0.45,1-1,1h-3c-0.55,0-1-0.45-1-1v-4c0-0.55,0.45-1,1-1h3c0.55,0,1,0.45,1,1V11z" />
+</vector>
\ No newline at end of file
diff --git a/packages/MediaComponents/res/drawable/ic_help.xml b/packages/MediaComponents/res/drawable/ic_help.xml
new file mode 100644
index 0000000..4d1d75d
--- /dev/null
+++ b/packages/MediaComponents/res/drawable/ic_help.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+
+    <path
+        android:pathData="M0 0h24v24H0z" />
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm1
+17h-2v-2h2v2zm2.07-7.75l-.9 .92 C13.45 12.9 13 13.5 13 15h-2v-.5c0-1.1 .45 -2.1
+1.17-2.83l1.24-1.26c.37-.36 .59 -.86 .59 -1.41 0-1.1-.9-2-2-2s-2 .9-2 2H8c0-2.21
+1.79-4 4-4s4 1.79 4 4c0 .88-.36 1.68-.93 2.25z" />
+</vector>
\ No newline at end of file
diff --git a/packages/MediaComponents/res/drawable/ic_high_quality.xml b/packages/MediaComponents/res/drawable/ic_high_quality.xml
new file mode 100644
index 0000000..e27d3e2
--- /dev/null
+++ b/packages/MediaComponents/res/drawable/ic_high_quality.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M19,4L5,4c-1.11,0 -2,0.9 -2,2v12c0,1.1 0.89,2 2,2h14c1.1,0 2,-0.9 2,-2L21,6c0,-1.1 -0.9,-2 -2,-2zM11,15L9.5,15v-2h-2v2L6,15L6,9h1.5v2.5h2L9.5,9L11,9v6zM18,14c0,0.55 -0.45,1 -1,1h-0.75v1.5h-1.5L14.75,15L14,15c-0.55,0 -1,-0.45 -1,-1v-4c0,-0.55 0.45,-1 1,-1h3c0.55,0 1,0.45 1,1v4zM14.5,13.5h2v-3h-2v3z"/>
+</vector>
\ No newline at end of file
diff --git a/packages/MediaComponents/res/drawable/ic_replay.xml b/packages/MediaComponents/res/drawable/ic_replay.xml
deleted file mode 100644
index 2bde120..0000000
--- a/packages/MediaComponents/res/drawable/ic_replay.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<vector android:height="40dp" android:viewportHeight="48.0"
-    android:viewportWidth="48.0" android:width="40dp" xmlns:android="http://schemas.android.com/apk/res/android">
-    <path android:fillColor="#FFFFFF" android:pathData="M24,10V2L14,12l10,10v-8c6.63,0 12,5.37 12,12s-5.37,12 -12,12 -12,-5.37 -12,-12H8c0,8.84 7.16,16 16,16s16,-7.16 16,-16 -7.16,-16 -16,-16z"/>
-</vector>
diff --git a/packages/MediaComponents/res/drawable/ic_replay_circle_filled.xml b/packages/MediaComponents/res/drawable/ic_replay_circle_filled.xml
new file mode 100644
index 0000000..389396b
--- /dev/null
+++ b/packages/MediaComponents/res/drawable/ic_replay_circle_filled.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+
+    <path
+        android:pathData="M0,0h24v24H0V0z" />
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="evenOdd"
+        android:pathData="M12,2C6.48,2,2,6.48,2,12c0,5.52,4.48,10,10,10c5.52,0,10-4.48,10-10
+C22,6.48,17.52,2,12,2z
+M18,12c0,3.31-2.69,6-6,6c-3.31,0-6-2.69-6-6h2c0,2.21,1.79,4,4,4s4-1.79,4-4s-1.79-4-4-4v3L8,7l4-4v3
+C15.31,6,18,8.69,18,12z" />
+</vector>
\ No newline at end of file
diff --git a/packages/MediaComponents/res/drawable/ic_sd.xml b/packages/MediaComponents/res/drawable/ic_sd.xml
new file mode 100644
index 0000000..decb6d2
--- /dev/null
+++ b/packages/MediaComponents/res/drawable/ic_sd.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+
+    <path
+        android:pathData="M0,0h24v24H0V0z" />
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M19,3H5C3.89,3,3,3.9,3,5v14c0,1.1,0.89,2,2,2h14c1.1,0,2-0.9,2-2V5C21,3.9,20.1,3,19,3z
+M13,9h4c0.55,0,1,0.45,1,1v4 c0,0.55-0.45,1-1,1h-4V9z
+M9.5,13.5v-1H7c-0.55,0-1-0.45-1-1V10c0-0.55,0.45-1,1-1h3c0.55,0,1,0.45,1,1v1H9.5v-0.5h-2v1H10
+c0.55,0,1,0.45,1,1V14c0,0.55-0.45,1-1,1H7c-0.55,0-1-0.45-1-1v-1h1.5v0.5H9.5z
+M14.5,13.5h2v-3h-2V13.5z" />
+</vector>
\ No newline at end of file
diff --git a/packages/MediaComponents/res/layout/media_controller.xml b/packages/MediaComponents/res/layout/media_controller.xml
index 73c1b38..38f139d 100644
--- a/packages/MediaComponents/res/layout/media_controller.xml
+++ b/packages/MediaComponents/res/layout/media_controller.xml
@@ -136,7 +136,7 @@
 
     <RelativeLayout
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="44dp"
         android:paddingLeft="15dp"
         android:orientation="horizontal">
 
@@ -235,6 +235,4 @@
         </LinearLayout>
 
     </RelativeLayout>
-
-</LinearLayout>
-
+</LinearLayout>
\ No newline at end of file
diff --git a/packages/MediaComponents/res/layout/settings_list.xml b/packages/MediaComponents/res/layout/settings_list.xml
new file mode 100644
index 0000000..37a3a60
--- /dev/null
+++ b/packages/MediaComponents/res/layout/settings_list.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2018 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<ListView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="@dimen/MediaControlView2_settings_width"
+    android:layout_height="@dimen/MediaControlView2_settings_height"
+    android:divider="@null"
+    android:dividerHeight="0dp">
+</ListView>
\ No newline at end of file
diff --git a/packages/MediaComponents/res/layout/settings_list_item.xml b/packages/MediaComponents/res/layout/settings_list_item.xml
new file mode 100644
index 0000000..e7522b7
--- /dev/null
+++ b/packages/MediaComponents/res/layout/settings_list_item.xml
@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2018 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="@dimen/MediaControlView2_settings_width"
+    android:layout_height="@dimen/MediaControlView2_settings_height"
+    android:orientation="horizontal"
+    android:background="@color/black_transparent_70">
+
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="@dimen/MediaControlView2_settings_height"
+        android:paddingRight="2dp"
+        android:gravity="center"
+        android:orientation="horizontal">
+
+        <ImageView
+            android:id="@+id/check"
+            android:layout_width="@dimen/MediaControlView2_settings_icon_size"
+            android:layout_height="@dimen/MediaControlView2_settings_icon_size"
+            android:gravity="center"
+            android:paddingLeft="2dp"
+            android:src="@drawable/ic_check"/>
+
+        <ImageView
+            android:id="@+id/icon"
+            android:layout_width="@dimen/MediaControlView2_settings_icon_size"
+            android:layout_height="@dimen/MediaControlView2_settings_icon_size"
+            android:gravity="center"
+            android:paddingLeft="2dp"/>
+    </LinearLayout>
+
+    <RelativeLayout
+        android:layout_width="wrap_content"
+        android:layout_height="@dimen/MediaControlView2_settings_height"
+        android:gravity="center"
+        android:orientation="vertical">
+
+        <TextView
+            android:id="@+id/main_text"
+            android:layout_width="wrap_content"
+            android:layout_height="@dimen/MediaControlView2_text_width"
+            android:paddingLeft="2dp"
+            android:textColor="@color/white"
+            android:textSize="@dimen/MediaControlView2_settings_main_text_size"/>
+
+        <TextView
+            android:id="@+id/sub_text"
+            android:layout_width="wrap_content"
+            android:layout_height="@dimen/MediaControlView2_text_width"
+            android:layout_below="@id/main_text"
+            android:paddingLeft="2dp"
+            android:textColor="@color/white_transparent_70"
+            android:textSize="@dimen/MediaControlView2_settings_sub_text_size"/>
+    </RelativeLayout>
+
+</LinearLayout>
+
diff --git a/packages/MediaComponents/res/values/colors.xml b/packages/MediaComponents/res/values/colors.xml
index 9e071d7..8ba069c 100644
--- a/packages/MediaComponents/res/values/colors.xml
+++ b/packages/MediaComponents/res/values/colors.xml
@@ -15,5 +15,8 @@
 -->
 
 <resources>
-    <integer name="gray">0xff444444</integer>
+    <color name="gray">#808080</color>
+    <color name="white">#ffffff</color>
+    <color name="white_transparent_70">#B3ffffff</color>
+    <color name="black_transparent_70">#B3000000</color>
 </resources>
\ No newline at end of file
diff --git a/packages/MediaComponents/res/values/dimens.xml b/packages/MediaComponents/res/values/dimens.xml
index 91241cd..b5ef626 100644
--- a/packages/MediaComponents/res/values/dimens.xml
+++ b/packages/MediaComponents/res/values/dimens.xml
@@ -40,4 +40,13 @@
     <integer name="mr_controller_volume_group_list_fade_in_duration_ms">400</integer>
     <!-- Group list fade out animation duration. -->
     <integer name="mr_controller_volume_group_list_fade_out_duration_ms">200</integer>
+
+    <dimen name="MediaControlView2_settings_width">200dp</dimen>
+    <dimen name="MediaControlView2_settings_height">36dp</dimen>
+    <dimen name="MediaControlView2_settings_icon_size">28dp</dimen>
+    <dimen name="MediaControlView2_settings_offset">8dp</dimen>
+    <dimen name="MediaControlView2_text_width">18dp</dimen>
+
+    <dimen name="MediaControlView2_settings_main_text_size">12sp</dimen>
+    <dimen name="MediaControlView2_settings_sub_text_size">10sp</dimen>
 </resources>
diff --git a/packages/MediaComponents/res/values/strings.xml b/packages/MediaComponents/res/values/strings.xml
index 333d400..5f9c78d 100644
--- a/packages/MediaComponents/res/values/strings.xml
+++ b/packages/MediaComponents/res/values/strings.xml
@@ -105,4 +105,11 @@
     </string>
     <!-- Placeholder text indicating that the user can press the button to go to an external website. -->
     <string name="MediaControlView2_ad_text">Visit Advertiser</string>
+    <string name="MediaControlView2_cc_text">Closed caption</string>
+    <string name="MediaControlView2_audio_track_text">Audio track</string>
+    <string name="MediaControlView2_video_quality_text">Video quality</string>
+    <string name="MediaControlView2_video_quality_auto_text">Auto</string>
+    <string name="MediaControlView2_playback_speed_text">Playback speed</string>
+    <string name="MediaControlView2_playback_speed_normal_text">Normal</string>
+    <string name="MediaControlView2_help_text">Help &amp; feedback</string>
 </resources>
diff --git a/packages/MediaComponents/res/values/style.xml b/packages/MediaComponents/res/values/style.xml
index db5e8f3..299f16b 100644
--- a/packages/MediaComponents/res/values/style.xml
+++ b/packages/MediaComponents/res/values/style.xml
@@ -81,5 +81,4 @@
     <style name="BottomBarButton.Mute">
         <item name="android:src">@drawable/ic_mute</item>
     </style>
-
 </resources>
diff --git a/packages/MediaComponents/src/com/android/media/IMediaSession2Callback.aidl b/packages/MediaComponents/src/com/android/media/IMediaSession2Callback.aidl
index 9a0be7a..6a03989 100644
--- a/packages/MediaComponents/src/com/android/media/IMediaSession2Callback.aidl
+++ b/packages/MediaComponents/src/com/android/media/IMediaSession2Callback.aidl
@@ -47,12 +47,12 @@
     //////////////////////////////////////////////////////////////////////////////////////////////
     // Browser sepcific
     //////////////////////////////////////////////////////////////////////////////////////////////
-    void onGetRootResult(in Bundle rootHints, String rootMediaId, in Bundle rootExtra);
-    void onItemLoaded(String mediaId, in Bundle result);
-    void onChildrenChanged(String rootMediaId, int childCount, in Bundle extras);
-    void onChildrenLoaded(String parentId, int page, int pageSize, in List<Bundle> result,
+    void onGetLibraryRootDone(in Bundle rootHints, String rootMediaId, in Bundle rootExtra);
+    void onGetItemDone(String mediaId, in Bundle result);
+    void onChildrenChanged(String rootMediaId, int itemCount, in Bundle extras);
+    void onGetChildrenDone(String parentId, int page, int pageSize, in List<Bundle> result,
             in Bundle extras);
     void onSearchResultChanged(String query, int itemCount, in Bundle extras);
-    void onSearchResultLoaded(String query, int page, int pageSize, in List<Bundle> result,
+    void onGetSearchResultDone(String query, int page, int pageSize, in List<Bundle> result,
             in Bundle extras);
 }
diff --git a/packages/MediaComponents/src/com/android/media/MediaBrowser2Impl.java b/packages/MediaComponents/src/com/android/media/MediaBrowser2Impl.java
index c095187..9190dfc 100644
--- a/packages/MediaComponents/src/com/android/media/MediaBrowser2Impl.java
+++ b/packages/MediaComponents/src/com/android/media/MediaBrowser2Impl.java
@@ -180,23 +180,23 @@
         }
     }
 
-    public void onGetRootResult(
+    public void onGetLibraryRootDone(
             final Bundle rootHints, final String rootMediaId, final Bundle rootExtra) {
         getCallbackExecutor().execute(() -> {
-            mCallback.onGetRootResult(rootHints, rootMediaId, rootExtra);
+            mCallback.onGetLibraryRootDone(rootHints, rootMediaId, rootExtra);
         });
     }
 
-    public void onItemLoaded(String mediaId, MediaItem2 item) {
+    public void onGetItemDone(String mediaId, MediaItem2 item) {
         getCallbackExecutor().execute(() -> {
-            mCallback.onItemLoaded(mediaId, item);
+            mCallback.onGetItemDone(mediaId, item);
         });
     }
 
-    public void onChildrenLoaded(String parentId, int page, int pageSize, List<MediaItem2> result,
+    public void onGetChildrenDone(String parentId, int page, int pageSize, List<MediaItem2> result,
             Bundle extras) {
         getCallbackExecutor().execute(() -> {
-            mCallback.onChildrenLoaded(parentId, page, pageSize, result, extras);
+            mCallback.onGetChildrenDone(parentId, page, pageSize, result, extras);
         });
     }
 
@@ -206,16 +206,16 @@
         });
     }
 
-    public void onSearchResultLoaded(String query, int page, int pageSize, List<MediaItem2> result,
+    public void onGetSearchResultDone(String query, int page, int pageSize, List<MediaItem2> result,
             Bundle extras) {
         getCallbackExecutor().execute(() -> {
-            mCallback.onSearchResultLoaded(query, page, pageSize, result, extras);
+            mCallback.onGetSearchResultDone(query, page, pageSize, result, extras);
         });
     }
 
-    public void onChildrenChanged(final String parentId, int childCount, final Bundle extras) {
+    public void onChildrenChanged(final String parentId, int itemCount, final Bundle extras) {
         getCallbackExecutor().execute(() -> {
-            mCallback.onChildrenChanged(parentId, childCount, extras);
+            mCallback.onChildrenChanged(parentId, itemCount, extras);
         });
     }
 }
diff --git a/packages/MediaComponents/src/com/android/media/MediaController2Impl.java b/packages/MediaComponents/src/com/android/media/MediaController2Impl.java
index 77db355..13f9208 100644
--- a/packages/MediaComponents/src/com/android/media/MediaController2Impl.java
+++ b/packages/MediaComponents/src/com/android/media/MediaController2Impl.java
@@ -118,16 +118,15 @@
 
     @Override
     public void initialize() {
-        SessionToken2Impl impl = SessionToken2Impl.from(mToken);
         // TODO(jaewan): More sanity checks.
-        if (impl.getSessionBinder() == null) {
+        if (mToken.getType() == SessionToken2.TYPE_SESSION) {
+            // Session
+            mServiceConnection = null;
+            connectToSession(SessionToken2Impl.from(mToken).getSessionBinder());
+        } else {
             // Session service
             mServiceConnection = new SessionServiceConnection();
             connectToService();
-        } else {
-            // Session
-            mServiceConnection = null;
-            connectToSession(impl.getSessionBinder());
         }
     }
 
@@ -466,11 +465,14 @@
     }
 
     @Override
-    public void setCurrentPlaylistItem_impl(int index) {
+    public void skipToPlaylistItem_impl(MediaItem2 item) {
+        // TODO(jaewan): Implement this
+        /*
         Bundle args = new Bundle();
-        args.putInt(MediaSession2Stub.ARGUMENT_KEY_ITEM_INDEX, index);
+        args.putInt(MediaSession2Stub.ARGUMENT_KEY_ITEM_INDEX, item);
         sendTransportControlCommand(
                 MediaSession2.COMMAND_CODE_PLAYBACK_SET_CURRENT_PLAYLIST_ITEM, args);
+        */
     }
 
     @Override
@@ -487,7 +489,7 @@
 
     @Override
     public void addPlaylistItem_impl(int index, MediaItem2 item) {
-    // TODO(jaewan): Implement
+        // TODO(jaewan): Implement
     }
 
     @Override
@@ -514,6 +516,36 @@
         sendTransportControlCommand(MediaSession2.COMMAND_CODE_PLAYBACK_SET_PLAYLIST_PARAMS, args);
     }
 
+    @Override
+    public int getPlayerState_impl() {
+        // TODO(jaewan): Implement
+        return 0;
+    }
+
+    @Override
+    public long getPosition_impl() {
+        // TODO(jaewan): Implement
+        return 0;
+    }
+
+    @Override
+    public float getPlaybackSpeed_impl() {
+        // TODO(jaewan): Implement
+        return 0;
+    }
+
+    @Override
+    public long getBufferedPosition_impl() {
+        // TODO(jaewan): Implement
+        return 0;
+    }
+
+    @Override
+    public MediaItem2 getCurrentPlaylistItem_impl() {
+        // TODO(jaewan): Implement
+        return null;
+    }
+
     void pushPlaybackStateChanges(final PlaybackState2 state) {
         synchronized (mLock) {
             mPlaybackState = state;
diff --git a/packages/MediaComponents/src/com/android/media/MediaLibraryService2Impl.java b/packages/MediaComponents/src/com/android/media/MediaLibraryService2Impl.java
index b9d2fa4..18ff1b9 100644
--- a/packages/MediaComponents/src/com/android/media/MediaLibraryService2Impl.java
+++ b/packages/MediaComponents/src/com/android/media/MediaLibraryService2Impl.java
@@ -21,9 +21,9 @@
 import android.media.MediaLibraryService2;
 import android.media.MediaLibraryService2.LibraryRoot;
 import android.media.MediaLibraryService2.MediaLibrarySession;
-import android.media.MediaLibraryService2.MediaLibrarySessionBuilder;
-import android.media.MediaLibraryService2.MediaLibrarySessionCallback;
-import android.media.MediaPlayerInterface;
+import android.media.MediaLibraryService2.MediaLibrarySession.Builder;
+import android.media.MediaLibraryService2.MediaLibrarySession.MediaLibrarySessionCallback;
+import android.media.MediaPlayerBase;
 import android.media.MediaSession2;
 import android.media.MediaSession2.ControllerInfo;
 import android.media.MediaSessionService2;
@@ -67,7 +67,7 @@
     public static class MediaLibrarySessionImpl extends MediaSession2Impl
             implements MediaLibrarySessionProvider {
         public MediaLibrarySessionImpl(Context context,
-                MediaPlayerInterface player, String id, VolumeProvider2 volumeProvider,
+                MediaPlayerBase player, String id, VolumeProvider2 volumeProvider,
                 PendingIntent sessionActivity, Executor callbackExecutor,
                 MediaLibrarySessionCallback callback) {
             super(context, player, id, volumeProvider, sessionActivity, callbackExecutor, callback);
@@ -95,23 +95,23 @@
 
         @Override
         public void notifyChildrenChanged_impl(ControllerInfo controller, String parentId,
-                int childCount, Bundle extras) {
+                int itemCount, Bundle extras) {
             if (controller == null) {
                 throw new IllegalArgumentException("controller shouldn't be null");
             }
             if (parentId == null) {
                 throw new IllegalArgumentException("parentId shouldn't be null");
             }
-            getSessionStub().notifyChildrenChangedNotLocked(controller, parentId, childCount,
+            getSessionStub().notifyChildrenChangedNotLocked(controller, parentId, itemCount,
                     extras);
         }
 
         @Override
-        public void notifyChildrenChanged_impl(String parentId, int childCount, Bundle extras) {
+        public void notifyChildrenChanged_impl(String parentId, int itemCount, Bundle extras) {
             if (parentId == null) {
                 throw new IllegalArgumentException("parentId shouldn't be null");
             }
-            getSessionStub().notifyChildrenChangedNotLocked(parentId, childCount, extras);
+            getSessionStub().notifyChildrenChangedNotLocked(parentId, itemCount, extras);
         }
 
         @Override
@@ -130,10 +130,10 @@
 
     public static class BuilderImpl
             extends BuilderBaseImpl<MediaLibrarySession, MediaLibrarySessionCallback> {
-        public BuilderImpl(Context context, MediaLibrarySessionBuilder instance,
-                MediaPlayerInterface player, Executor callbackExecutor,
+        public BuilderImpl(MediaLibraryService2 service, Builder instance,
+                MediaPlayerBase player, Executor callbackExecutor,
                 MediaLibrarySessionCallback callback) {
-            super(context, player);
+            super(service, player);
             setSessionCallback_impl(callbackExecutor, callback);
         }
 
diff --git a/packages/MediaComponents/src/com/android/media/MediaMetadata2Impl.java b/packages/MediaComponents/src/com/android/media/MediaMetadata2Impl.java
index 9088029..7b2ee32 100644
--- a/packages/MediaComponents/src/com/android/media/MediaMetadata2Impl.java
+++ b/packages/MediaComponents/src/com/android/media/MediaMetadata2Impl.java
@@ -38,16 +38,11 @@
 public class MediaMetadata2Impl implements MediaMetadata2Provider {
     private static final String TAG = "MediaMetadata2";
 
-    /**
-     * A {@link Bundle} extra.
-     * @hide
-     */
-    public static final String METADATA_KEY_EXTRA = "android.media.metadata.EXTRA";
-
     static final int METADATA_TYPE_LONG = 0;
     static final int METADATA_TYPE_TEXT = 1;
     static final int METADATA_TYPE_BITMAP = 2;
     static final int METADATA_TYPE_RATING = 3;
+    static final int METADATA_TYPE_FLOAT = 4;
     static final ArrayMap<String, Integer> METADATA_KEYS_TYPE;
 
     static {
@@ -83,6 +78,8 @@
         METADATA_KEYS_TYPE.put(METADATA_KEY_MEDIA_URI, METADATA_TYPE_TEXT);
         METADATA_KEYS_TYPE.put(METADATA_KEY_ADVERTISEMENT, METADATA_TYPE_LONG);
         METADATA_KEYS_TYPE.put(METADATA_KEY_DOWNLOAD_STATUS, METADATA_TYPE_LONG);
+        METADATA_KEYS_TYPE.put(METADATA_KEY_RADIO_FREQUENCY, METADATA_TYPE_FLOAT);
+        METADATA_KEYS_TYPE.put(METADATA_KEY_RADIO_CALLSIGN, METADATA_TYPE_TEXT);
     }
 
     private static final @TextKey
@@ -167,6 +164,11 @@
     }
 
     @Override
+    public float getFloat_impl(@FloatKey String key) {
+        return mBundle.getFloat(key);
+    }
+
+    @Override
     public Bitmap getBitmap_impl(@BitmapKey String key) {
         Bitmap bmp = null;
         try {
@@ -179,9 +181,9 @@
     }
 
     @Override
-    public Bundle getExtra_impl() {
+    public Bundle getExtras_impl() {
         try {
-            return mBundle.getBundle(METADATA_KEY_EXTRA);
+            return mBundle.getBundle(METADATA_KEY_EXTRAS);
         } catch (Exception e) {
             // ignore, value was not an bundle
             Log.w(TAG, "Failed to retrieve an extra");
@@ -305,8 +307,20 @@
         }
 
         @Override
-        public Builder setExtra_impl(Bundle bundle) {
-            mBundle.putBundle(METADATA_KEY_EXTRA, bundle);
+        public Builder putFloat_impl(@FloatKey String key, float value) {
+            if (METADATA_KEYS_TYPE.containsKey(key)) {
+                if (METADATA_KEYS_TYPE.get(key) != METADATA_TYPE_FLOAT) {
+                    throw new IllegalArgumentException("The " + key
+                            + " key cannot be used to put a float");
+                }
+            }
+            mBundle.putFloat(key, value);
+            return mInstance;
+        }
+
+        @Override
+        public Builder setExtras_impl(Bundle bundle) {
+            mBundle.putBundle(METADATA_KEY_EXTRAS, bundle);
             return mInstance;
         }
 
diff --git a/packages/MediaComponents/src/com/android/media/MediaSession2CallbackStub.java b/packages/MediaComponents/src/com/android/media/MediaSession2CallbackStub.java
index e174d91..2178ccd 100644
--- a/packages/MediaComponents/src/com/android/media/MediaSession2CallbackStub.java
+++ b/packages/MediaComponents/src/com/android/media/MediaSession2CallbackStub.java
@@ -209,7 +209,7 @@
     // MediaBrowser specific
     ////////////////////////////////////////////////////////////////////////////////////////////
     @Override
-    public void onGetRootResult(Bundle rootHints, String rootMediaId, Bundle rootExtra)
+    public void onGetLibraryRootDone(Bundle rootHints, String rootMediaId, Bundle rootExtra)
             throws RuntimeException {
         final MediaBrowser2Impl browser;
         try {
@@ -222,12 +222,12 @@
             // TODO(jaewan): Revisit here. Could be a bug
             return;
         }
-        browser.onGetRootResult(rootHints, rootMediaId, rootExtra);
+        browser.onGetLibraryRootDone(rootHints, rootMediaId, rootExtra);
     }
 
 
     @Override
-    public void onItemLoaded(String mediaId, Bundle itemBundle) throws RuntimeException {
+    public void onGetItemDone(String mediaId, Bundle itemBundle) throws RuntimeException {
         final MediaBrowser2Impl browser;
         try {
             browser = getBrowser();
@@ -239,12 +239,12 @@
             // TODO(jaewan): Revisit here. Could be a bug
             return;
         }
-        browser.onItemLoaded(mediaId,
+        browser.onGetItemDone(mediaId,
                 MediaItem2Impl.fromBundle(browser.getContext(), itemBundle));
     }
 
     @Override
-    public void onChildrenLoaded(String parentId, int page, int pageSize,
+    public void onGetChildrenDone(String parentId, int page, int pageSize,
             List<Bundle> itemBundleList, Bundle extras) throws RuntimeException {
         final MediaBrowser2Impl browser;
         try {
@@ -265,7 +265,7 @@
                 result.add(MediaItem2.fromBundle(browser.getContext(), bundle));
             }
         }
-        browser.onChildrenLoaded(parentId, page, pageSize, result, extras);
+        browser.onGetChildrenDone(parentId, page, pageSize, result, extras);
     }
 
     @Override
@@ -286,7 +286,7 @@
     }
 
     @Override
-    public void onSearchResultLoaded(String query, int page, int pageSize,
+    public void onGetSearchResultDone(String query, int page, int pageSize,
             List<Bundle> itemBundleList, Bundle extras) throws RuntimeException {
         final MediaBrowser2Impl browser;
         try {
@@ -307,11 +307,11 @@
                 result.add(MediaItem2.fromBundle(browser.getContext(), bundle));
             }
         }
-        browser.onSearchResultLoaded(query, page, pageSize, result, extras);
+        browser.onGetSearchResultDone(query, page, pageSize, result, extras);
     }
 
     @Override
-    public void onChildrenChanged(String parentId, int childCount, Bundle extras) {
+    public void onChildrenChanged(String parentId, int itemCount, Bundle extras) {
         final MediaBrowser2Impl browser;
         try {
             browser = getBrowser();
@@ -323,6 +323,6 @@
             // TODO(jaewan): Revisit here. Could be a bug
             return;
         }
-        browser.onChildrenChanged(parentId, childCount, extras);
+        browser.onChildrenChanged(parentId, itemCount, extras);
     }
 }
diff --git a/packages/MediaComponents/src/com/android/media/MediaSession2Impl.java b/packages/MediaComponents/src/com/android/media/MediaSession2Impl.java
index a32ea0a..ec4ce8d 100644
--- a/packages/MediaComponents/src/com/android/media/MediaSession2Impl.java
+++ b/packages/MediaComponents/src/com/android/media/MediaSession2Impl.java
@@ -37,8 +37,8 @@
 import android.media.MediaItem2;
 import android.media.MediaLibraryService2;
 import android.media.MediaMetadata2;
-import android.media.MediaPlayerInterface;
-import android.media.MediaPlayerInterface.EventCallback;
+import android.media.MediaPlayerBase;
+import android.media.MediaPlayerBase.EventCallback;
 import android.media.MediaSession2;
 import android.media.MediaSession2.Builder;
 import android.media.MediaSession2.Command;
@@ -105,7 +105,7 @@
     //
     // TODO(jaewan): Should we put volatile here?
     @GuardedBy("mLock")
-    private MediaPlayerInterface mPlayer;
+    private MediaPlayerBase mPlayer;
     @GuardedBy("mLock")
     private VolumeProvider2 mVolumeProvider;
     @GuardedBy("mLock")
@@ -124,7 +124,7 @@
      * @param callbackExecutor
      * @param callback
      */
-    public MediaSession2Impl(Context context, MediaPlayerInterface player, String id,
+    public MediaSession2Impl(Context context, MediaPlayerBase player, String id,
             VolumeProvider2 volumeProvider, PendingIntent sessionActivity,
             Executor callbackExecutor, SessionCallback callback) {
         // TODO(jaewan): Keep other params.
@@ -148,10 +148,10 @@
                     + " session services define the same id=" + id);
         } else if (libraryService != null) {
             mSessionToken = new SessionToken2Impl(context, Process.myUid(), TYPE_LIBRARY_SERVICE,
-                    mContext.getPackageName(), libraryService, id, mSessionStub).getInstance();
+                    mContext.getPackageName(), libraryService, id, null).getInstance();
         } else if (sessionService != null) {
             mSessionToken = new SessionToken2Impl(context, Process.myUid(), TYPE_SESSION_SERVICE,
-                    mContext.getPackageName(), sessionService, id, mSessionStub).getInstance();
+                    mContext.getPackageName(), sessionService, id, null).getInstance();
         } else {
             mSessionToken = new SessionToken2Impl(context, Process.myUid(), TYPE_SESSION,
                     mContext.getPackageName(), null, id, mSessionStub).getInstance();
@@ -166,7 +166,7 @@
         // a session in another package.
         MediaSessionManager manager =
                 (MediaSessionManager) mContext.getSystemService(Context.MEDIA_SESSION_SERVICE);
-        if (!manager.onSessionCreated(mSessionToken)) {
+        if (!manager.createSession2(mSessionToken)) {
             throw new IllegalStateException("Session with the same id is already used by"
                     + " another process. Use MediaController2 instead.");
         }
@@ -202,7 +202,7 @@
     }
 
     @Override
-    public void setPlayer_impl(MediaPlayerInterface player) {
+    public void setPlayer_impl(MediaPlayerBase player) {
         ensureCallingThread();
         if (player == null) {
             throw new IllegalArgumentException("player shouldn't be null");
@@ -211,7 +211,7 @@
     }
 
     @Override
-    public void setPlayer_impl(MediaPlayerInterface player, VolumeProvider2 volumeProvider)
+    public void setPlayer_impl(MediaPlayerBase player, VolumeProvider2 volumeProvider)
             throws IllegalArgumentException {
         ensureCallingThread();
         if (player == null) {
@@ -223,7 +223,7 @@
         setPlayer(player, volumeProvider);
     }
 
-    private void setPlayer(MediaPlayerInterface player, VolumeProvider2 volumeProvider) {
+    private void setPlayer(MediaPlayerBase player, VolumeProvider2 volumeProvider) {
         final PlaybackInfo info = createPlaybackInfo(volumeProvider, player.getAudioAttributes());
         synchronized (mLock) {
             if (mPlayer != null && mEventCallback != null) {
@@ -281,7 +281,7 @@
         // Stop system service from listening this session first.
         MediaSessionManager manager =
                 (MediaSessionManager) mContext.getSystemService(Context.MEDIA_SESSION_SERVICE);
-        manager.onSessionDestroyed(mSessionToken);
+        manager.destroySession2(mSessionToken);
 
         if (mSessionStub != null) {
             if (DEBUG) {
@@ -300,7 +300,7 @@
     }
 
     @Override
-    public MediaPlayerInterface getPlayer_impl() {
+    public MediaPlayerBase getPlayer_impl() {
         return getPlayer();
     }
 
@@ -323,7 +323,7 @@
     @Override
     public void play_impl() {
         ensureCallingThread();
-        final MediaPlayerInterface player = mPlayer;
+        final MediaPlayerBase player = mPlayer;
         if (player != null) {
             player.play();
         } else if (DEBUG) {
@@ -334,7 +334,7 @@
     @Override
     public void pause_impl() {
         ensureCallingThread();
-        final MediaPlayerInterface player = mPlayer;
+        final MediaPlayerBase player = mPlayer;
         if (player != null) {
             player.pause();
         } else if (DEBUG) {
@@ -345,7 +345,7 @@
     @Override
     public void stop_impl() {
         ensureCallingThread();
-        final MediaPlayerInterface player = mPlayer;
+        final MediaPlayerBase player = mPlayer;
         if (player != null) {
             player.stop();
         } else if (DEBUG) {
@@ -356,7 +356,7 @@
     @Override
     public void skipToPrevious_impl() {
         ensureCallingThread();
-        final MediaPlayerInterface player = mPlayer;
+        final MediaPlayerBase player = mPlayer;
         if (player != null) {
             player.skipToPrevious();
         } else if (DEBUG) {
@@ -367,7 +367,7 @@
     @Override
     public void skipToNext_impl() {
         ensureCallingThread();
-        final MediaPlayerInterface player = mPlayer;
+        final MediaPlayerBase player = mPlayer;
         if (player != null) {
             player.skipToNext();
         } else if (DEBUG) {
@@ -393,7 +393,7 @@
             throw new IllegalArgumentException("params shouldn't be null");
         }
         ensureCallingThread();
-        final MediaPlayerInterface player = mPlayer;
+        final MediaPlayerBase player = mPlayer;
         if (player != null) {
             player.setPlaylistParams(params);
             mSessionStub.notifyPlaylistParamsChanged(params);
@@ -402,7 +402,7 @@
 
     @Override
     public PlaylistParams getPlaylistParams_impl() {
-        final MediaPlayerInterface player = mPlayer;
+        final MediaPlayerBase player = mPlayer;
         if (player != null) {
             // TODO(jaewan): Is it safe to be called on any thread?
             //               Otherwise MediaSession2 should cache parameter of setPlaylistParams.
@@ -423,11 +423,6 @@
     }
 
     @Override
-    public void notifyMetadataChanged_impl() {
-        // TODO(jaewan): Implement
-    }
-
-    @Override
     public void sendCustomCommand_impl(ControllerInfo controller, Command command, Bundle args,
             ResultReceiver receiver) {
         mSessionStub.sendCustomCommand(controller, command, args, receiver);
@@ -444,7 +439,7 @@
             throw new IllegalArgumentException("playlist shouldn't be null");
         }
         ensureCallingThread();
-        final MediaPlayerInterface player = mPlayer;
+        final MediaPlayerBase player = mPlayer;
         if (player != null) {
             player.setPlaylist(playlist);
             mSessionStub.notifyPlaylistChanged(playlist);
@@ -454,8 +449,23 @@
     }
 
     @Override
+    public void addPlaylistItem_impl(int index, MediaItem2 item) {
+        // TODO(jaewan): Implement
+    }
+
+    @Override
+    public void removePlaylistItem_impl(MediaItem2 item) {
+        // TODO(jaewan): Implement
+    }
+
+    @Override
+    public void editPlaylistItem_impl(MediaItem2 item) {
+        // TODO(jaewan): Implement
+    }
+
+    @Override
     public List<MediaItem2> getPlaylist_impl() {
-        final MediaPlayerInterface player = mPlayer;
+        final MediaPlayerBase player = mPlayer;
         if (player != null) {
             // TODO(jaewan): Is it safe to be called on any thread?
             //               Otherwise MediaSession2 should cache parameter of setPlaylist.
@@ -467,9 +477,15 @@
     }
 
     @Override
+    public MediaItem2 getCurrentPlaylistItem_impl() {
+        // TODO(jaewan): Implement
+        return null;
+    }
+
+    @Override
     public void prepare_impl() {
         ensureCallingThread();
-        final MediaPlayerInterface player = mPlayer;
+        final MediaPlayerBase player = mPlayer;
         if (player != null) {
             player.prepare();
         } else if (DEBUG) {
@@ -480,7 +496,7 @@
     @Override
     public void fastForward_impl() {
         ensureCallingThread();
-        final MediaPlayerInterface player = mPlayer;
+        final MediaPlayerBase player = mPlayer;
         if (player != null) {
             player.fastForward();
         } else if (DEBUG) {
@@ -491,7 +507,7 @@
     @Override
     public void rewind_impl() {
         ensureCallingThread();
-        final MediaPlayerInterface player = mPlayer;
+        final MediaPlayerBase player = mPlayer;
         if (player != null) {
             player.rewind();
         } else if (DEBUG) {
@@ -502,7 +518,7 @@
     @Override
     public void seekTo_impl(long pos) {
         ensureCallingThread();
-        final MediaPlayerInterface player = mPlayer;
+        final MediaPlayerBase player = mPlayer;
         if (player != null) {
             player.seekTo(pos);
         } else if (DEBUG) {
@@ -511,11 +527,11 @@
     }
 
     @Override
-    public void setCurrentPlaylistItem_impl(int index) {
+    public void skipToPlaylistItem_impl(MediaItem2 item) {
         ensureCallingThread();
-        final MediaPlayerInterface player = mPlayer;
+        final MediaPlayerBase player = mPlayer;
         if (player != null) {
-            player.setCurrentPlaylistItem(index);
+            player.setCurrentPlaylistItem(item);
         } else if (DEBUG) {
             Log.d(TAG, "API calls after the close()", new IllegalStateException());
         }
@@ -552,7 +568,7 @@
     @Override
     public PlaybackState2 getPlaybackState_impl() {
         ensureCallingThread();
-        final MediaPlayerInterface player = mPlayer;
+        final MediaPlayerBase player = mPlayer;
         if (player != null) {
             // TODO(jaewan): Is it safe to be called on any thread?
             //               Otherwise MediaSession2 should cache the result from listener.
@@ -563,6 +579,11 @@
         return null;
     }
 
+    @Override
+    public void notifyError_impl(int errorCode, int extra) {
+        // TODO(jaewan): Implement
+    }
+
     ///////////////////////////////////////////////////
     // Protected or private methods
     ///////////////////////////////////////////////////
@@ -624,7 +645,7 @@
         return mInstance;
     }
 
-    MediaPlayerInterface getPlayer() {
+    MediaPlayerBase getPlayer() {
         return mPlayer;
     }
 
@@ -654,11 +675,11 @@
         return mSessionActivity;
     }
 
-    private static class MyEventCallback implements EventCallback {
+    private static class MyEventCallback extends EventCallback {
         private final WeakReference<MediaSession2Impl> mSession;
-        private final MediaPlayerInterface mPlayer;
+        private final MediaPlayerBase mPlayer;
 
-        private MyEventCallback(MediaSession2Impl session, MediaPlayerInterface player) {
+        private MyEventCallback(MediaSession2Impl session, MediaPlayerBase player) {
             mSession = new WeakReference<>(session);
             mPlayer = player;
         }
@@ -1195,7 +1216,7 @@
     public static abstract class BuilderBaseImpl<T extends MediaSession2, C extends SessionCallback>
             implements BuilderBaseProvider<T, C> {
         final Context mContext;
-        final MediaPlayerInterface mPlayer;
+        final MediaPlayerBase mPlayer;
         String mId;
         Executor mCallbackExecutor;
         C mCallback;
@@ -1211,7 +1232,7 @@
          *      {@link MediaSession2} or {@link MediaController2}.
          */
         // TODO(jaewan): Also need executor
-        public BuilderBaseImpl(Context context, MediaPlayerInterface player) {
+        public BuilderBaseImpl(Context context, MediaPlayerBase player) {
             if (context == null) {
                 throw new IllegalArgumentException("context shouldn't be null");
             }
@@ -1254,7 +1275,7 @@
     }
 
     public static class BuilderImpl extends BuilderBaseImpl<MediaSession2, SessionCallback> {
-        public BuilderImpl(Context context, Builder instance, MediaPlayerInterface player) {
+        public BuilderImpl(Context context, Builder instance, MediaPlayerBase player) {
             super(context, player);
         }
 
@@ -1264,7 +1285,7 @@
                 mCallbackExecutor = mContext.getMainExecutor();
             }
             if (mCallback == null) {
-                mCallback = new SessionCallback(mContext);
+                mCallback = new SessionCallback(mContext) {};
             }
 
             return new MediaSession2Impl(mContext, mPlayer, mId, mVolumeProvider,
diff --git a/packages/MediaComponents/src/com/android/media/MediaSession2Stub.java b/packages/MediaComponents/src/com/android/media/MediaSession2Stub.java
index 914f85e..7fb6f0f 100644
--- a/packages/MediaComponents/src/com/android/media/MediaSession2Stub.java
+++ b/packages/MediaComponents/src/com/android/media/MediaSession2Stub.java
@@ -126,26 +126,26 @@
             throws RuntimeException {
         final MediaSession2Impl sessionImpl = getSession();
         final Context context = sessionImpl.getContext();
-        final ControllerInfo request = new ControllerInfo(context,
+        final ControllerInfo controllerInfo = new ControllerInfo(context,
                 Binder.getCallingUid(), Binder.getCallingPid(), callingPackage, caller);
         sessionImpl.getCallbackExecutor().execute(() -> {
             final MediaSession2Impl session = mSession.get();
             if (session == null) {
                 return;
             }
-            CommandGroup allowedCommands = session.getCallback().onConnect(request);
-            // Don't reject connection for the request from trusted app.
+            CommandGroup allowedCommands = session.getCallback().onConnect(controllerInfo);
+            // Don't reject connection for the controllerInfo from trusted app.
             // Otherwise server will fail to retrieve session's information to dispatch
             // media keys to.
-            boolean accept = allowedCommands != null || request.isTrusted();
-            ControllerInfoImpl impl = ControllerInfoImpl.from(request);
+            boolean accept = allowedCommands != null || controllerInfo.isTrusted();
+            ControllerInfoImpl impl = ControllerInfoImpl.from(controllerInfo);
             if (accept) {
                 if (DEBUG) {
-                    Log.d(TAG, "Accepting connection, request=" + request
+                    Log.d(TAG, "Accepting connection, controllerInfo=" + controllerInfo
                             + " allowedCommands=" + allowedCommands);
                 }
                 synchronized (mLock) {
-                    mControllers.put(impl.getId(), request);
+                    mControllers.put(impl.getId(), controllerInfo);
                 }
                 if (allowedCommands == null) {
                     // For trusted apps, send non-null allowed commands to keep connection.
@@ -195,7 +195,7 @@
                 }
             } else {
                 if (DEBUG) {
-                    Log.d(TAG, "Rejecting connection, request=" + request);
+                    Log.d(TAG, "Rejecting connection, controllerInfo=" + controllerInfo);
                 }
                 try {
                     caller.onDisconnected();
@@ -357,8 +357,11 @@
                     session.getInstance().seekTo(args.getLong(ARGUMENT_KEY_POSITION));
                     break;
                 case MediaSession2.COMMAND_CODE_PLAYBACK_SET_CURRENT_PLAYLIST_ITEM:
-                    session.getInstance().setCurrentPlaylistItem(
+                    // TODO(jaewan): Implement
+                    /*
+                    session.getInstance().skipToPlaylistItem(
                             args.getInt(ARGUMENT_KEY_ITEM_INDEX));
+                    */
                     break;
                 case MediaSession2.COMMAND_CODE_PLAYBACK_SET_PLAYLIST_PARAMS:
                     session.getInstance().setPlaylistParams(
@@ -554,9 +557,9 @@
                 return;
             }
             final ControllerInfoImpl controllerImpl = ControllerInfoImpl.from(controller);
-            LibraryRoot root = session.getCallback().onGetRoot(controller, rootHints);
+            LibraryRoot root = session.getCallback().onGetLibraryRoot(controller, rootHints);
             try {
-                controllerImpl.getControllerBinder().onGetRootResult(rootHints,
+                controllerImpl.getControllerBinder().onGetLibraryRootDone(rootHints,
                         root == null ? null : root.getRootId(),
                         root == null ? null : root.getExtras());
             } catch (RemoteException e) {
@@ -588,9 +591,9 @@
                 return;
             }
             final ControllerInfoImpl controllerImpl = ControllerInfoImpl.from(controller);
-            MediaItem2 result = session.getCallback().onLoadItem(controller, mediaId);
+            MediaItem2 result = session.getCallback().onGetItem(controller, mediaId);
             try {
-                controllerImpl.getControllerBinder().onItemLoaded(
+                controllerImpl.getControllerBinder().onGetItemDone(
                         mediaId, result == null ? null : result.toBundle());
             } catch (RemoteException e) {
                 // Controller may be died prematurely.
@@ -629,10 +632,10 @@
                 return;
             }
             final ControllerInfoImpl controllerImpl = ControllerInfoImpl.from(controller);
-            List<MediaItem2> result = session.getCallback().onLoadChildren(
+            List<MediaItem2> result = session.getCallback().onGetChildren(
                     controller, parentId, page, pageSize, extras);
             if (result != null && result.size() > pageSize) {
-                throw new IllegalArgumentException("onLoadChildren() shouldn't return media items "
+                throw new IllegalArgumentException("onGetChildren() shouldn't return media items "
                         + "more than pageSize. result.size()=" + result.size() + " pageSize="
                         + pageSize);
             }
@@ -646,7 +649,7 @@
             }
 
             try {
-                controllerImpl.getControllerBinder().onChildrenLoaded(
+                controllerImpl.getControllerBinder().onGetChildrenDone(
                         parentId, page, pageSize, bundleList, extras);
             } catch (RemoteException e) {
                 // Controller may be died prematurely.
@@ -712,10 +715,10 @@
                 return;
             }
             final ControllerInfoImpl controllerImpl = ControllerInfoImpl.from(controller);
-            List<MediaItem2> result = session.getCallback().onLoadSearchResult(
+            List<MediaItem2> result = session.getCallback().onGetSearchResult(
                     controller, query, page, pageSize, extras);
             if (result != null && result.size() > pageSize) {
-                throw new IllegalArgumentException("onLoadSearchResult() shouldn't return media "
+                throw new IllegalArgumentException("onGetSearchResult() shouldn't return media "
                         + "items more than pageSize. result.size()=" + result.size() + " pageSize="
                         + pageSize);
             }
@@ -729,7 +732,7 @@
             }
 
             try {
-                controllerImpl.getControllerBinder().onSearchResultLoaded(
+                controllerImpl.getControllerBinder().onGetSearchResultDone(
                         query, page, pageSize, bundleList, extras);
             } catch (RemoteException e) {
                 // Controller may be died prematurely.
@@ -754,7 +757,7 @@
             if (session == null) {
                 return;
             }
-            session.getCallback().onSubscribed(controller, parentId, option);
+            session.getCallback().onSubscribe(controller, parentId, option);
             synchronized (mLock) {
                 Set<String> subscription = mSubscriptions.get(controller);
                 if (subscription == null) {
@@ -781,7 +784,7 @@
             if (session == null) {
                 return;
             }
-            session.getCallback().onUnsubscribed(controller, parentId);
+            session.getCallback().onUnsubscribe(controller, parentId);
             synchronized (mLock) {
                 mSubscriptions.remove(controller);
             }
@@ -951,23 +954,23 @@
     }
 
     public void notifyChildrenChangedNotLocked(ControllerInfo controller, String parentId,
-            int childCount, Bundle extras) {
+            int itemCount, Bundle extras) {
         // TODO(jaewan): Handle when controller is disconnected and no longer valid.
         //               Note: Commands may be sent while onConnected() is running. Should we also
         //                     consider it as error?
-        notifyChildrenChangedInternalNotLocked(controller, parentId, childCount, extras);
+        notifyChildrenChangedInternalNotLocked(controller, parentId, itemCount, extras);
     }
 
-    public void notifyChildrenChangedNotLocked(String parentId, int childCount, Bundle extras) {
+    public void notifyChildrenChangedNotLocked(String parentId, int itemCount, Bundle extras) {
         final List<ControllerInfo> controllers = getControllers();
         for (int i = 0; i < controllers.size(); i++) {
-            notifyChildrenChangedInternalNotLocked(controllers.get(i), parentId, childCount,
+            notifyChildrenChangedInternalNotLocked(controllers.get(i), parentId, itemCount,
                     extras);
         }
     }
 
     public void notifyChildrenChangedInternalNotLocked(final ControllerInfo controller,
-            String parentId, int childCount, Bundle extras) {
+            String parentId, int itemCount, Bundle extras) {
         // Ensure subscription
         synchronized (mLock) {
             Set<String> subscriptions = mSubscriptions.get(controller);
@@ -978,7 +981,7 @@
         final IMediaSession2Callback callbackBinder =
                 ControllerInfoImpl.from(controller).getControllerBinder();
         try {
-            callbackBinder.onChildrenChanged(parentId, childCount, extras);
+            callbackBinder.onChildrenChanged(parentId, itemCount, extras);
         } catch (RemoteException e) {
             // TODO(jaewan): Handle controller removed?
         }
diff --git a/packages/MediaComponents/src/com/android/media/MediaSessionService2Impl.java b/packages/MediaComponents/src/com/android/media/MediaSessionService2Impl.java
index aa5ac84..e640f4c 100644
--- a/packages/MediaComponents/src/com/android/media/MediaSessionService2Impl.java
+++ b/packages/MediaComponents/src/com/android/media/MediaSessionService2Impl.java
@@ -22,7 +22,7 @@
 import android.app.NotificationManager;
 import android.content.Context;
 import android.content.Intent;
-import android.media.MediaPlayerInterface.EventCallback;
+import android.media.MediaPlayerBase.EventCallback;
 import android.media.MediaSession2;
 import android.media.MediaSessionService2;
 import android.media.MediaSessionService2.MediaNotification;
@@ -72,7 +72,7 @@
     }
 
     @Override
-    public MediaNotification onUpdateNotification_impl(PlaybackState2 state) {
+    public MediaNotification onUpdateNotification_impl() {
         // Provide default notification UI later.
         return null;
     }
@@ -103,13 +103,13 @@
 
     public IBinder onBind_impl(Intent intent) {
         if (MediaSessionService2.SERVICE_INTERFACE.equals(intent.getAction())) {
-            return SessionToken2Impl.from(mSession.getToken()).getSessionBinder().asBinder();
+            return ((MediaSession2Impl) mSession.getProvider()).getSessionStub().asBinder();
         }
         return null;
     }
 
     private void updateNotification(PlaybackState2 state) {
-        MediaNotification mediaNotification = mInstance.onUpdateNotification(state);
+        MediaNotification mediaNotification = mInstance.onUpdateNotification();
         if (mediaNotification == null) {
             return;
         }
@@ -135,7 +135,7 @@
                 mediaNotification.getNotification());
     }
 
-    private class SessionServiceEventCallback implements EventCallback {
+    private class SessionServiceEventCallback extends EventCallback {
         @Override
         public void onPlaybackStateChanged(PlaybackState2 state) {
             if (state == null) {
@@ -143,7 +143,7 @@
                 return;
             }
             MediaSession2Impl impl = (MediaSession2Impl) mSession.getProvider();
-            updateNotification(state);
+            updateNotification(impl.getInstance().getPlaybackState());
         }
     }
 
diff --git a/packages/MediaComponents/src/com/android/media/SessionToken2Impl.java b/packages/MediaComponents/src/com/android/media/SessionToken2Impl.java
index f36aa43..b1ba8aa 100644
--- a/packages/MediaComponents/src/com/android/media/SessionToken2Impl.java
+++ b/packages/MediaComponents/src/com/android/media/SessionToken2Impl.java
@@ -53,8 +53,8 @@
     private final IMediaSession2 mSessionBinder;
 
     /**
-     * Public constructor for the legacy support (i.e. browser can try connecting to any browser service
-     * if it knows the service name)
+     * Public constructor for the legacy support (i.e. browser can try connecting to any browser
+     * service if it knows the service name)
      */
     public SessionToken2Impl(Context context, SessionToken2 instance,
             String packageName, String serviceName, int uid) {
@@ -235,8 +235,7 @@
                 + prime * (mUid
                 + prime * (mPackageName.hashCode()
                 + prime * (mId.hashCode()
-                + prime * ((mServiceName != null ? mServiceName.hashCode() : 0)
-                + prime * (mSessionBinder != null ? mSessionBinder.asBinder().hashCode() : 0)))));
+                + prime * (mServiceName != null ? mServiceName.hashCode() : 0))));
     }
 
     @Override
@@ -245,19 +244,11 @@
             return false;
         }
         SessionToken2Impl other = from((SessionToken2) obj);
-        if (mUid != other.mUid
-                || !TextUtils.equals(mPackageName, other.mPackageName)
-                || !TextUtils.equals(mServiceName, other.mServiceName)
-                || !TextUtils.equals(mId, other.mId)
-                || mType != other.mType) {
-            return false;
-        }
-        if (mSessionBinder == other.mSessionBinder) {
-            return true;
-        } else if (mSessionBinder == null || other.mSessionBinder == null) {
-            return false;
-        }
-        return mSessionBinder.asBinder().equals(other.mSessionBinder.asBinder());
+        return mUid == other.mUid
+                && TextUtils.equals(mPackageName, other.mPackageName)
+                && TextUtils.equals(mServiceName, other.mServiceName)
+                && TextUtils.equals(mId, other.mId)
+                && mType == other.mType;
     }
 
     @Override
diff --git a/packages/MediaComponents/src/com/android/media/update/ApiFactory.java b/packages/MediaComponents/src/com/android/media/update/ApiFactory.java
index 994824d..577173d 100644
--- a/packages/MediaComponents/src/com/android/media/update/ApiFactory.java
+++ b/packages/MediaComponents/src/com/android/media/update/ApiFactory.java
@@ -29,13 +29,11 @@
 import android.media.MediaLibraryService2;
 import android.media.MediaLibraryService2.LibraryRoot;
 import android.media.MediaLibraryService2.MediaLibrarySession;
-import android.media.MediaLibraryService2.MediaLibrarySessionBuilder;
-import android.media.MediaLibraryService2.MediaLibrarySessionCallback;
+import android.media.MediaLibraryService2.MediaLibrarySession.MediaLibrarySessionCallback;
 import android.media.MediaMetadata2;
-import android.media.MediaPlayerInterface;
+import android.media.MediaPlayerBase;
 import android.media.MediaSession2;
 import android.media.MediaSession2.Command;
-import android.media.MediaSession2.CommandButton.Builder;
 import android.media.MediaSession2.CommandGroup;
 import android.media.MediaSession2.ControllerInfo;
 import android.media.MediaSession2.PlaylistParams;
@@ -159,12 +157,12 @@
 
     @Override
     public BuilderProvider createMediaSession2CommandButtonBuilder(Context context,
-            Builder instance) {
+            MediaSession2.CommandButton.Builder instance) {
         return new MediaSession2Impl.CommandButtonImpl.BuilderImpl(context, instance);
     }
 
     public BuilderBaseProvider<MediaSession2, SessionCallback> createMediaSession2Builder(
-            Context context, MediaSession2.Builder instance, MediaPlayerInterface player) {
+            Context context, MediaSession2.Builder instance, MediaPlayerBase player) {
         return new MediaSession2Impl.BuilderImpl(context, instance, player);
     }
 
@@ -189,10 +187,10 @@
 
     @Override
     public BuilderBaseProvider<MediaLibrarySession, MediaLibrarySessionCallback>
-        createMediaLibraryService2Builder(
-            Context context, MediaLibrarySessionBuilder instance, MediaPlayerInterface player,
+        createMediaLibraryService2Builder(MediaLibraryService2 service,
+            MediaLibrarySession.Builder instance, MediaPlayerBase player,
             Executor callbackExecutor, MediaLibrarySessionCallback callback) {
-        return new MediaLibraryService2Impl.BuilderImpl(context, instance, player, callbackExecutor,
+        return new MediaLibraryService2Impl.BuilderImpl(service, instance, player, callbackExecutor,
                 callback);
     }
 
@@ -223,7 +221,7 @@
     }
 
     @Override
-    public SessionToken2 SessionToken2_fromBundle(Context context, Bundle bundle) {
+    public SessionToken2 fromBundle_SessionToken2(Context context, Bundle bundle) {
         return SessionToken2Impl.fromBundle_impl(context, bundle);
     }
 
diff --git a/packages/MediaComponents/src/com/android/widget/MediaControlView2Impl.java b/packages/MediaComponents/src/com/android/widget/MediaControlView2Impl.java
index e937659..f440ad6 100644
--- a/packages/MediaComponents/src/com/android/widget/MediaControlView2Impl.java
+++ b/packages/MediaComponents/src/com/android/widget/MediaControlView2Impl.java
@@ -26,13 +26,19 @@
 import android.support.annotation.Nullable;
 import android.util.AttributeSet;
 import android.util.Log;
+import android.view.Gravity;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.BaseAdapter;
 import android.widget.Button;
 import android.widget.ImageButton;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.ListView;
 import android.widget.MediaControlView2;
 import android.widget.ProgressBar;
+import android.widget.PopupWindow;
 import android.widget.RelativeLayout;
 import android.widget.SeekBar;
 import android.widget.SeekBar.OnSeekBarChangeListener;
@@ -44,6 +50,7 @@
 import com.android.support.mediarouter.media.MediaRouter;
 import com.android.support.mediarouter.media.MediaRouteSelector;
 
+import java.util.ArrayList;
 import java.util.Formatter;
 import java.util.List;
 import java.util.Locale;
@@ -68,7 +75,9 @@
     private static final int REWIND_TIME_MS = 10000;
     private static final int FORWARD_TIME_MS = 30000;
     private static final int AD_SKIP_WAIT_TIME_MS = 5000;
+    private static final int RESOURCE_NON_EXISTENT = -1;
 
+    private Resources mResources;
     private MediaController mController;
     private MediaController.TransportControls mControls;
     private PlaybackState mPlaybackState;
@@ -109,6 +118,12 @@
     private ImageButton mAspectRationButton;
     private ImageButton mSettingsButton;
 
+    private PopupWindow mSettingsWindow;
+    private SettingsAdapter mSettingsAdapter;
+    private List<Integer> mSettingsMainTextIdsList;
+    private List<Integer> mSettingsSubTextIdsList;
+    private List<Integer> mSettingsIconIdsList;
+
     private CharSequence mPlayDescription;
     private CharSequence mPauseDescription;
     private CharSequence mReplayDescription;
@@ -127,6 +142,7 @@
 
     @Override
     public void initialize(@Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+        mResources = ApiHelper.getLibResources();
         // Inflate MediaControlView2 from XML
         mRoot = makeControllerView();
         mRoot.addOnLayoutChangeListener(mTitleBarLayoutChangeListener);
@@ -356,10 +372,11 @@
     }
 
     private void initControllerView(View v) {
-        Resources res = ApiHelper.getLibResources();
-        mPlayDescription = res.getText(R.string.lockscreen_play_button_content_description);
-        mPauseDescription = res.getText(R.string.lockscreen_pause_button_content_description);
-        mReplayDescription = res.getText(R.string.lockscreen_replay_button_content_description);
+        mPlayDescription = mResources.getText(R.string.lockscreen_play_button_content_description);
+        mPauseDescription =
+                mResources.getText(R.string.lockscreen_pause_button_content_description);
+        mReplayDescription =
+                mResources.getText(R.string.lockscreen_replay_button_content_description);
 
         mRouteButton = v.findViewById(R.id.cast);
 
@@ -367,19 +384,19 @@
         if (mPlayPauseButton != null) {
             mPlayPauseButton.requestFocus();
             mPlayPauseButton.setOnClickListener(mPlayPauseListener);
-            mPlayPauseButton.setColorFilter(R.integer.gray);
+            mPlayPauseButton.setColorFilter(R.color.gray);
             mPlayPauseButton.setEnabled(false);
         }
         mFfwdButton = v.findViewById(R.id.ffwd);
         if (mFfwdButton != null) {
             mFfwdButton.setOnClickListener(mFfwdListener);
-            mFfwdButton.setColorFilter(R.integer.gray);
+            mFfwdButton.setColorFilter(R.color.gray);
             mFfwdButton.setEnabled(false);
         }
         mRewButton = v.findViewById(R.id.rew);
         if (mRewButton != null) {
             mRewButton.setOnClickListener(mRewListener);
-            mRewButton.setColorFilter(R.integer.gray);
+            mRewButton.setColorFilter(R.color.gray);
             mRewButton.setEnabled(false);
         }
         mNextButton = v.findViewById(R.id.next);
@@ -395,7 +412,7 @@
         mSubtitleButton = v.findViewById(R.id.subtitle);
         if (mSubtitleButton != null) {
             mSubtitleButton.setOnClickListener(mSubtitleListener);
-            mSubtitleButton.setColorFilter(R.integer.gray);
+            mSubtitleButton.setColorFilter(R.color.gray);
             mSubtitleButton.setEnabled(false);
         }
         mFullScreenButton = v.findViewById(R.id.fullscreen);
@@ -418,6 +435,9 @@
         mMuteButton = v.findViewById(R.id.mute);
         mAspectRationButton = v.findViewById(R.id.aspect_ratio);
         mSettingsButton = v.findViewById(R.id.settings);
+        if (mSettingsButton != null) {
+            mSettingsButton.setOnClickListener(mSettingsButtonListener);
+        }
 
         mProgress = v.findViewById(R.id.mediacontroller_progress);
         if (mProgress != null) {
@@ -438,6 +458,18 @@
         mAdSkipView = v.findViewById(R.id.ad_skip_time);
         mAdRemainingView = v.findViewById(R.id.ad_remaining);
         mAdExternalLink = v.findViewById(R.id.ad_external_link);
+
+        populateResourceIds();
+        ListView settingsListView = (ListView) ApiHelper.inflateLibLayout(mInstance.getContext(),
+                R.layout.settings_list);
+        mSettingsAdapter = new SettingsAdapter(mSettingsMainTextIdsList, mSettingsSubTextIdsList,
+                mSettingsIconIdsList, true);
+        settingsListView.setAdapter(mSettingsAdapter);
+
+        int width = mResources.getDimensionPixelSize(R.dimen.MediaControlView2_settings_width);
+        mSettingsWindow = new PopupWindow(settingsListView, width,
+                ViewGroup.LayoutParams.WRAP_CONTENT, true);
+        // TODO: add listener to list view to allow each item to be selected.
     }
 
     /**
@@ -530,7 +562,7 @@
                     if (mAdSkipView.getVisibility() == View.GONE) {
                         mAdSkipView.setVisibility(View.VISIBLE);
                     }
-                    String skipTimeText = ApiHelper.getLibResources().getString(
+                    String skipTimeText = mResources.getString(
                             R.string.MediaControlView2_ad_skip_wait_time,
                             ((AD_SKIP_WAIT_TIME_MS - currentPosition) / 1000 + 1));
                     mAdSkipView.setText(skipTimeText);
@@ -546,7 +578,7 @@
             if (mAdRemainingView != null) {
                 int remainingTime =
                         (mDuration - currentPosition < 0) ? 0 : (mDuration - currentPosition);
-                String remainingTimeText = ApiHelper.getLibResources().getString(
+                String remainingTimeText = mResources.getString(
                         R.string.MediaControlView2_ad_remaining_time,
                         stringForTime(remainingTime));
                 mAdRemainingView.setText(remainingTimeText);
@@ -559,14 +591,12 @@
         if (isPlaying()) {
             mControls.pause();
             mPlayPauseButton.setImageDrawable(
-                    ApiHelper.getLibResources().getDrawable(
-                            R.drawable.ic_play_circle_filled, null));
+                    mResources.getDrawable(R.drawable.ic_play_circle_filled, null));
             mPlayPauseButton.setContentDescription(mPlayDescription);
         } else {
             mControls.play();
             mPlayPauseButton.setImageDrawable(
-                    ApiHelper.getLibResources().getDrawable(
-                            R.drawable.ic_pause_circle_filled, null));
+                    mResources.getDrawable(R.drawable.ic_pause_circle_filled, null));
             mPlayPauseButton.setContentDescription(mPauseDescription);
         }
     }
@@ -602,8 +632,7 @@
             // show the play image instead of the replay image.
             if (mIsStopped) {
                 mPlayPauseButton.setImageDrawable(
-                        ApiHelper.getLibResources().getDrawable(
-                                R.drawable.ic_play_circle_filled, null));
+                        mResources.getDrawable(R.drawable.ic_play_circle_filled, null));
                 mPlayPauseButton.setContentDescription(mPlayDescription);
                 mIsStopped = false;
             }
@@ -689,14 +718,12 @@
         public void onClick(View v) {
             if (!mSubtitleIsEnabled) {
                 mSubtitleButton.setImageDrawable(
-                        ApiHelper.getLibResources().getDrawable(
-                                R.drawable.ic_media_subtitle_enabled, null));
+                        mResources.getDrawable(R.drawable.ic_media_subtitle_enabled, null));
                 mController.sendCommand(MediaControlView2.COMMAND_SHOW_SUBTITLE, null, null);
                 mSubtitleIsEnabled = true;
             } else {
                 mSubtitleButton.setImageDrawable(
-                        ApiHelper.getLibResources().getDrawable(
-                                R.drawable.ic_media_subtitle_disabled, null));
+                        mResources.getDrawable(R.drawable.ic_media_subtitle_disabled, null));
                 mController.sendCommand(MediaControlView2.COMMAND_HIDE_SUBTITLE, null, null);
                 mSubtitleIsEnabled = false;
             }
@@ -710,11 +737,10 @@
             // TODO: Re-arrange the button layouts according to the UX.
             if (isEnteringFullScreen) {
                 mFullScreenButton.setImageDrawable(
-                        ApiHelper.getLibResources().getDrawable(
-                                R.drawable.ic_fullscreen_exit, null));
+                        mResources.getDrawable(R.drawable.ic_fullscreen_exit, null));
             } else {
                 mFullScreenButton.setImageDrawable(
-                        ApiHelper.getLibResources().getDrawable(R.drawable.ic_fullscreen, null));
+                        mResources.getDrawable(R.drawable.ic_fullscreen, null));
             }
             Bundle args = new Bundle();
             args.putBoolean(ARGUMENT_KEY_FULLSCREEN, isEnteringFullScreen);
@@ -740,6 +766,19 @@
         }
     };
 
+    private final View.OnClickListener mSettingsButtonListener = new View.OnClickListener() {
+        @Override
+        public void onClick(View v) {
+            int itemHeight = mResources.getDimensionPixelSize(
+                    R.dimen.MediaControlView2_settings_height);
+            int totalHeight = mSettingsAdapter.getCount() * itemHeight;
+            int margin = (-1) * mResources.getDimensionPixelSize(
+                    R.dimen.MediaControlView2_settings_offset);
+            mSettingsWindow.showAsDropDown(mInstance, margin, margin - totalHeight,
+                    Gravity.BOTTOM | Gravity.RIGHT);
+        }
+    };
+
     // The title bar is made up of two separate LinearLayouts. If the sum of the two bars are
     // greater than the length of the title bar, reduce the size of the left bar (which makes the
     // TextView that contains the title of the media file shrink).
@@ -802,7 +841,7 @@
 
             mProgress.setEnabled(false);
             mNextButton.setEnabled(false);
-            mNextButton.setColorFilter(R.integer.gray);
+            mNextButton.setColorFilter(R.color.gray);
         } else {
             mRewButton.setVisibility(View.VISIBLE);
             mFfwdButton.setVisibility(View.VISIBLE);
@@ -821,6 +860,31 @@
         }
     }
 
+    private void populateResourceIds() {
+        // TODO: create record class for storing this info
+        mSettingsMainTextIdsList = new ArrayList<Integer>();
+        mSettingsMainTextIdsList.add(R.string.MediaControlView2_cc_text);
+        mSettingsMainTextIdsList.add(R.string.MediaControlView2_audio_track_text);
+        mSettingsMainTextIdsList.add(R.string.MediaControlView2_video_quality_text);
+        mSettingsMainTextIdsList.add(R.string.MediaControlView2_playback_speed_text);
+        mSettingsMainTextIdsList.add(R.string.MediaControlView2_help_text);
+
+        // TODO: Update the following code to be dynamic.
+        mSettingsSubTextIdsList = new ArrayList<Integer>();
+        mSettingsSubTextIdsList.add(R.string.MediaControlView2_cc_text);
+        mSettingsSubTextIdsList.add(R.string.MediaControlView2_audio_track_text);
+        mSettingsSubTextIdsList.add(R.string.MediaControlView2_video_quality_text);
+        mSettingsSubTextIdsList.add(R.string.MediaControlView2_playback_speed_text);
+        mSettingsSubTextIdsList.add(RESOURCE_NON_EXISTENT);
+
+        mSettingsIconIdsList = new ArrayList<Integer>();
+        mSettingsIconIdsList.add(R.drawable.ic_closed_caption_off);
+        mSettingsIconIdsList.add(R.drawable.ic_audiotrack);
+        mSettingsIconIdsList.add(R.drawable.ic_high_quality);
+        mSettingsIconIdsList.add(R.drawable.ic_play_circle_filled);
+        mSettingsIconIdsList.add(R.drawable.ic_help);
+    }
+
     private class MediaControllerCallback extends MediaController.Callback {
         @Override
         public void onPlaybackStateChanged(PlaybackState state) {
@@ -834,22 +898,19 @@
                 switch (mPlaybackState.getState()) {
                     case PlaybackState.STATE_PLAYING:
                         mPlayPauseButton.setImageDrawable(
-                                ApiHelper.getLibResources().getDrawable(
-                                        R.drawable.ic_pause_circle_filled, null));
+                                mResources.getDrawable(R.drawable.ic_pause_circle_filled, null));
                         mPlayPauseButton.setContentDescription(mPauseDescription);
                         mInstance.removeCallbacks(mUpdateProgress);
                         mInstance.post(mUpdateProgress);
                         break;
                     case PlaybackState.STATE_PAUSED:
                         mPlayPauseButton.setImageDrawable(
-                                ApiHelper.getLibResources().getDrawable(
-                                        R.drawable.ic_play_circle_filled, null));
+                                mResources.getDrawable(R.drawable.ic_play_circle_filled, null));
                         mPlayPauseButton.setContentDescription(mPlayDescription);
                         break;
                     case PlaybackState.STATE_STOPPED:
                         mPlayPauseButton.setImageDrawable(
-                                ApiHelper.getLibResources().getDrawable(
-                                        R.drawable.ic_replay, null));
+                                mResources.getDrawable(R.drawable.ic_replay_circle_filled, null));
                         mPlayPauseButton.setContentDescription(mReplayDescription);
                         mIsStopped = true;
                         break;
@@ -923,7 +984,7 @@
                         mSubtitleButton.clearColorFilter();
                         mSubtitleButton.setEnabled(true);
                     } else {
-                        mSubtitleButton.setColorFilter(R.integer.gray);
+                        mSubtitleButton.setColorFilter(R.color.gray);
                         mSubtitleButton.setEnabled(false);
                     }
                     mContainsSubtitle = newSubtitleStatus;
@@ -937,4 +998,76 @@
             }
         }
     }
+
+    private class SettingsAdapter extends BaseAdapter {
+        List<Integer> mMainTextIds;
+        List<Integer> mSubTextIds;
+        List<Integer> mIconIds;
+        boolean mIsCheckable;
+
+        public SettingsAdapter(List<Integer> mainTextIds, @Nullable List<Integer> subTextIds,
+                @Nullable List<Integer> iconIds, boolean isCheckable) {
+            mMainTextIds = mainTextIds;
+            mSubTextIds = subTextIds;
+            mIconIds = iconIds;
+            mIsCheckable = isCheckable;
+        }
+
+        @Override
+        public int getCount() {
+            return (mMainTextIds == null) ? 0 : mMainTextIds.size();
+        }
+
+        @Override
+        public long getItemId(int position) {
+            // Auto-generated method stub--does not have any purpose here
+            // TODO: implement this.
+            return 0;
+        }
+
+        @Override
+        public Object getItem(int position) {
+            // Auto-generated method stub--does not have any purpose here
+            // TODO: implement this.
+            return null;
+        }
+
+        @Override
+        public View getView(int position, View convertView, ViewGroup container) {
+            View row = ApiHelper.inflateLibLayout(mInstance.getContext(),
+                    R.layout.settings_list_item);
+            TextView mainTextView = (TextView) row.findViewById(R.id.main_text);
+            TextView subTextView = (TextView) row.findViewById(R.id.sub_text);
+            ImageView iconView = (ImageView) row.findViewById(R.id.icon);
+            ImageView checkView = (ImageView) row.findViewById(R.id.check);
+
+            // Set main text
+            mainTextView.setText(mResources.getString(mMainTextIds.get(position)));
+
+            // Remove sub text and center the main text if sub texts do not exist at all or the sub
+            // text at this particular position is set to RESOURCE_NON_EXISTENT.
+            if (mSubTextIds == null || mSubTextIds.get(position) == RESOURCE_NON_EXISTENT) {
+                subTextView.setVisibility(View.GONE);
+            } else {
+                // Otherwise, set sub text.
+                subTextView.setText(mResources.getString(mSubTextIds.get(position)));
+            }
+
+            // Remove main icon and set visibility to gone if icons are set to null or the icon at
+            // this particular position is set to RESOURCE_NON_EXISTENT.
+            if (mIconIds == null || mIconIds.get(position) == RESOURCE_NON_EXISTENT) {
+                iconView.setVisibility(View.GONE);
+            } else {
+                // Otherwise, set main icon.
+                iconView.setImageDrawable(mResources.getDrawable(mIconIds.get(position), null));
+            }
+
+            // Set check icon
+            // TODO: make the following code dynamic
+            if (!mIsCheckable) {
+                checkView.setVisibility(View.GONE);
+            }
+            return row;
+        }
+    }
 }
diff --git a/packages/MediaComponents/src/com/android/widget/VideoView2Impl.java b/packages/MediaComponents/src/com/android/widget/VideoView2Impl.java
index 805c262..928b2a5 100644
--- a/packages/MediaComponents/src/com/android/widget/VideoView2Impl.java
+++ b/packages/MediaComponents/src/com/android/widget/VideoView2Impl.java
@@ -24,7 +24,7 @@
 import android.media.AudioManager;
 import android.media.MediaMetadata;
 import android.media.MediaPlayer;
-import android.media.MediaPlayerInterface;
+import android.media.MediaPlayerBase;
 import android.media.Cea708CaptionRenderer;
 import android.media.ClosedCaptionRenderer;
 import android.media.MediaMetadata2;
@@ -312,7 +312,7 @@
     }
 
     @Override
-    public void setRouteAttributes_impl(List<String> routeCategories, MediaPlayerInterface player) {
+    public void setRouteAttributes_impl(List<String> routeCategories, MediaPlayerBase player) {
         // TODO: implement this.
     }
 
diff --git a/packages/MediaComponents/test/src/android/media/MediaBrowser2Test.java b/packages/MediaComponents/test/src/android/media/MediaBrowser2Test.java
index 7e93232..1abb9b4 100644
--- a/packages/MediaComponents/test/src/android/media/MediaBrowser2Test.java
+++ b/packages/MediaComponents/test/src/android/media/MediaBrowser2Test.java
@@ -71,13 +71,13 @@
 
     interface TestBrowserCallbackInterface extends TestControllerCallbackInterface {
         // Browser specific callbacks
-        default void onGetRootResult(Bundle rootHints, String rootMediaId, Bundle rootExtra) {}
-        default void onItemLoaded(String mediaId, MediaItem2 result) {}
-        default void onChildrenChanged(String parentId, int childCount, Bundle extras) {}
-        default void onChildrenLoaded(String parentId, int page, int pageSize,
+        default void onGetLibraryRootDone(Bundle rootHints, String rootMediaId, Bundle rootExtra) {}
+        default void onGetItemDone(String mediaId, MediaItem2 result) {}
+        default void onChildrenChanged(String parentId, int itemCount, Bundle extras) {}
+        default void onGetChildrenDone(String parentId, int page, int pageSize,
                 List<MediaItem2> result, Bundle extras) {}
         default void onSearchResultChanged(String query, int itemCount, Bundle extras) {}
-        default void onSearchResultLoaded(String query, int page, int pageSize,
+        default void onGetSearchResultDone(String query, int page, int pageSize,
                 List<MediaItem2> result, Bundle extras) {}
     }
 
@@ -89,7 +89,8 @@
         final CountDownLatch latch = new CountDownLatch(1);
         final TestControllerCallbackInterface callback = new TestBrowserCallbackInterface() {
             @Override
-            public void onGetRootResult(Bundle rootHints, String rootMediaId, Bundle rootExtra) {
+            public void onGetLibraryRootDone(Bundle rootHints, String rootMediaId,
+                    Bundle rootExtra) {
                 assertTrue(TestUtils.equals(param, rootHints));
                 assertEquals(MockMediaLibraryService2.ROOT_ID, rootMediaId);
                 assertTrue(TestUtils.equals(MockMediaLibraryService2.EXTRAS, rootExtra));
@@ -111,7 +112,7 @@
         final CountDownLatch latch = new CountDownLatch(1);
         final TestControllerCallbackInterface callback = new TestBrowserCallbackInterface() {
             @Override
-            public void onItemLoaded(String mediaIdOut, MediaItem2 result) {
+            public void onGetItemDone(String mediaIdOut, MediaItem2 result) {
                 assertEquals(mediaId, mediaIdOut);
                 assertNotNull(result);
                 assertEquals(mediaId, result.getMediaId());
@@ -132,7 +133,7 @@
         final CountDownLatch latch = new CountDownLatch(1);
         final TestControllerCallbackInterface callback = new TestBrowserCallbackInterface() {
             @Override
-            public void onItemLoaded(String mediaIdOut, MediaItem2 result) {
+            public void onGetItemDone(String mediaIdOut, MediaItem2 result) {
                 assertEquals(mediaId, mediaIdOut);
                 assertNull(result);
                 latch.countDown();
@@ -156,7 +157,7 @@
         final CountDownLatch latch = new CountDownLatch(1);
         final TestControllerCallbackInterface callback = new TestBrowserCallbackInterface() {
             @Override
-            public void onChildrenLoaded(String parentIdOut, int pageOut, int pageSizeOut,
+            public void onGetChildrenDone(String parentIdOut, int pageOut, int pageSizeOut,
                     List<MediaItem2> result, Bundle extrasOut) {
                 assertEquals(parentId, parentIdOut);
                 assertEquals(page, pageOut);
@@ -192,7 +193,7 @@
         final CountDownLatch latch = new CountDownLatch(1);
         final TestControllerCallbackInterface callback = new TestBrowserCallbackInterface() {
             @Override
-            public void onChildrenLoaded(String parentIdOut, int pageOut, int pageSizeOut,
+            public void onGetChildrenDone(String parentIdOut, int pageOut, int pageSizeOut,
                     List<MediaItem2> result, Bundle extrasOut) {
                 assertNotNull(result);
                 assertEquals(0, result.size());
@@ -213,7 +214,7 @@
         final CountDownLatch latch = new CountDownLatch(1);
         final TestControllerCallbackInterface callback = new TestBrowserCallbackInterface() {
             @Override
-            public void onChildrenLoaded(String parentIdOut, int pageOut, int pageSizeOut,
+            public void onGetChildrenDone(String parentIdOut, int pageOut, int pageSizeOut,
                     List<MediaItem2> result, Bundle extrasOut) {
                 assertNull(result);
                 latch.countDown();
@@ -246,7 +247,7 @@
             }
 
             @Override
-            public void onSearchResultLoaded(String queryOut, int pageOut, int pageSizeOut,
+            public void onGetSearchResultDone(String queryOut, int pageOut, int pageSizeOut,
                     List<MediaItem2> result, Bundle extrasOut) {
                 assertEquals(query, queryOut);
                 assertEquals(page, pageOut);
@@ -336,7 +337,7 @@
         final CountDownLatch latch = new CountDownLatch(1);
         final SessionCallbackProxy callbackProxy = new SessionCallbackProxy(mContext) {
             @Override
-            public void onSubscribed(ControllerInfo info, String parentId, Bundle extras) {
+            public void onSubscribe(ControllerInfo info, String parentId, Bundle extras) {
                 if (Process.myUid() == info.getUid()) {
                     assertEquals(testParentId, parentId);
                     assertTrue(TestUtils.equals(testExtras, extras));
@@ -357,7 +358,7 @@
         final CountDownLatch latch = new CountDownLatch(1);
         final SessionCallbackProxy callbackProxy = new SessionCallbackProxy(mContext) {
             @Override
-            public void onUnsubscribed(ControllerInfo info, String parentId) {
+            public void onUnsubscribe(ControllerInfo info, String parentId) {
                 if (Process.myUid() == info.getUid()) {
                     assertEquals(testParentId, parentId);
                     latch.countDown();
@@ -395,7 +396,7 @@
             }
 
             @Override
-            public void onSubscribed(ControllerInfo info, String parentId, Bundle extras) {
+            public void onSubscribe(ControllerInfo info, String parentId, Bundle extras) {
                 if (Process.myUid() == info.getUid()) {
                     final MediaLibrarySession session =  (MediaLibrarySession) mSession;
                     session.notifyChildrenChanged(testParentId2, testChildrenCount, null);
@@ -407,18 +408,17 @@
         final TestBrowserCallbackInterface controllerCallbackProxy =
                 new TestBrowserCallbackInterface() {
                     @Override
-                    public void onChildrenChanged(String parentId, int childCount,
-                            Bundle extras) {
+                    public void onChildrenChanged(String parentId, int itemCount, Bundle extras) {
                         switch ((int) latch.getCount()) {
                             case 3:
                                 assertEquals(testParentId2, parentId);
-                                assertEquals(testChildrenCount, childCount);
+                                assertEquals(testChildrenCount, itemCount);
                                 assertNull(extras);
                                 latch.countDown();
                                 break;
                             case 2:
                                 assertEquals(testParentId2, parentId);
-                                assertEquals(testChildrenCount, childCount);
+                                assertEquals(testChildrenCount, itemCount);
                                 assertTrue(TestUtils.equals(testExtras, extras));
                                 latch.countDown();
                                 break;
@@ -496,29 +496,29 @@
         }
 
         @Override
-        public void onGetRootResult(Bundle rootHints, String rootMediaId, Bundle rootExtra) {
-            super.onGetRootResult(rootHints, rootMediaId, rootExtra);
+        public void onGetLibraryRootDone(Bundle rootHints, String rootMediaId, Bundle rootExtra) {
+            super.onGetLibraryRootDone(rootHints, rootMediaId, rootExtra);
             if (mCallbackProxy instanceof TestBrowserCallbackInterface) {
                 ((TestBrowserCallbackInterface) mCallbackProxy)
-                        .onGetRootResult(rootHints, rootMediaId, rootExtra);
+                        .onGetLibraryRootDone(rootHints, rootMediaId, rootExtra);
             }
         }
 
         @Override
-        public void onItemLoaded(String mediaId, MediaItem2 result) {
-            super.onItemLoaded(mediaId, result);
+        public void onGetItemDone(String mediaId, MediaItem2 result) {
+            super.onGetItemDone(mediaId, result);
             if (mCallbackProxy instanceof TestBrowserCallbackInterface) {
-                ((TestBrowserCallbackInterface) mCallbackProxy).onItemLoaded(mediaId, result);
+                ((TestBrowserCallbackInterface) mCallbackProxy).onGetItemDone(mediaId, result);
             }
         }
 
         @Override
-        public void onChildrenLoaded(String parentId, int page, int pageSize,
+        public void onGetChildrenDone(String parentId, int page, int pageSize,
                 List<MediaItem2> result, Bundle extras) {
-            super.onChildrenLoaded(parentId, page, pageSize, result, extras);
+            super.onGetChildrenDone(parentId, page, pageSize, result, extras);
             if (mCallbackProxy instanceof TestBrowserCallbackInterface) {
                 ((TestBrowserCallbackInterface) mCallbackProxy)
-                        .onChildrenLoaded(parentId, page, pageSize, result, extras);
+                        .onGetChildrenDone(parentId, page, pageSize, result, extras);
             }
         }
 
@@ -532,21 +532,21 @@
         }
 
         @Override
-        public void onSearchResultLoaded(String query, int page, int pageSize,
+        public void onGetSearchResultDone(String query, int page, int pageSize,
                 List<MediaItem2> result, Bundle extras) {
-            super.onSearchResultLoaded(query, page, pageSize, result, extras);
+            super.onGetSearchResultDone(query, page, pageSize, result, extras);
             if (mCallbackProxy instanceof TestBrowserCallbackInterface) {
                 ((TestBrowserCallbackInterface) mCallbackProxy)
-                        .onSearchResultLoaded(query, page, pageSize, result, extras);
+                        .onGetSearchResultDone(query, page, pageSize, result, extras);
             }
         }
 
         @Override
-        public void onChildrenChanged(String parentId, int childCount, Bundle extras) {
-            super.onChildrenChanged(parentId, childCount, extras);
+        public void onChildrenChanged(String parentId, int itemCount, Bundle extras) {
+            super.onChildrenChanged(parentId, itemCount, extras);
             if (mCallbackProxy instanceof TestBrowserCallbackInterface) {
                 ((TestBrowserCallbackInterface) mCallbackProxy)
-                        .onChildrenChanged(parentId, childCount, extras);
+                        .onChildrenChanged(parentId, itemCount, extras);
             }
         }
 
diff --git a/packages/MediaComponents/test/src/android/media/MediaController2Test.java b/packages/MediaComponents/test/src/android/media/MediaController2Test.java
index e162f1d..69769bf 100644
--- a/packages/MediaComponents/test/src/android/media/MediaController2Test.java
+++ b/packages/MediaComponents/test/src/android/media/MediaController2Test.java
@@ -19,7 +19,7 @@
 import android.app.PendingIntent;
 import android.content.Context;
 import android.content.Intent;
-import android.media.MediaPlayerInterface.EventCallback;
+import android.media.MediaPlayerBase.EventCallback;
 import android.media.MediaSession2.Command;
 import android.media.MediaSession2.CommandGroup;
 import android.media.MediaSession2.ControllerInfo;
@@ -39,6 +39,7 @@
 
 import org.junit.After;
 import org.junit.Before;
+import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
@@ -76,7 +77,7 @@
 
         mPlayer = new MockPlayer(1);
         mSession = new MediaSession2.Builder(mContext, mPlayer)
-                .setSessionCallback(sHandlerExecutor, new SessionCallback(mContext))
+                .setSessionCallback(sHandlerExecutor, new SessionCallback(mContext) {})
                 .setSessionActivity(mIntent)
                 .setId(TAG).build();
         mController = createController(mSession.getToken());
@@ -194,18 +195,22 @@
         assertEquals(seekPosition, mPlayer.mSeekPosition);
     }
 
+    // TODO(jaewan): Re-enable this test
+    /*
     @Test
     public void testSetCurrentPlaylistItem() throws InterruptedException {
+        final
         final int itemIndex = 9;
-        mController.setCurrentPlaylistItem(itemIndex);
+        mController.skipToPlaylistItem(itemIndex);
         try {
             assertTrue(mPlayer.mCountDownLatch.await(WAIT_TIME_MS, TimeUnit.MILLISECONDS));
         } catch (InterruptedException e) {
             fail(e.getMessage());
         }
         assertTrue(mPlayer.mSetCurrentPlaylistItemCalled);
-        assertEquals(itemIndex, mPlayer.mItemIndex);
+        assertEquals(itemIndex, mPlayer.mCurrentItem);
     }
+    */
 
     @Test
     public void testGetSessionActivity() throws InterruptedException {
@@ -578,7 +583,7 @@
             final MockPlayer player = new MockPlayer(0);
             sessionHandler.postAndSync(() -> {
                 mSession = new MediaSession2.Builder(mContext, mPlayer)
-                        .setSessionCallback(sHandlerExecutor, new SessionCallback(mContext))
+                        .setSessionCallback(sHandlerExecutor, new SessionCallback(mContext) {})
                         .setId("testDeadlock").build();
             });
             final MediaController2 controller = createController(mSession.getToken());
@@ -722,11 +727,13 @@
         testControllerAfterSessionIsGone(id);
     }
 
+    @Ignore
     @Test
     public void testClose_sessionService() throws InterruptedException {
         testCloseFromService(MockMediaSessionService2.ID);
     }
 
+    @Ignore
     @Test
     public void testClose_libraryService() throws InterruptedException {
         testCloseFromService(MockMediaLibraryService2.ID);
@@ -766,7 +773,7 @@
             // Recreated session has different session stub, so previously created controller
             // shouldn't be available.
             mSession = new MediaSession2.Builder(mContext, mPlayer)
-                    .setSessionCallback(sHandlerExecutor, new SessionCallback(mContext))
+                    .setSessionCallback(sHandlerExecutor, new SessionCallback(mContext) {})
                     .setId(id).build();
         });
         testNoInteraction();
diff --git a/packages/MediaComponents/test/src/android/media/MediaMetadata2Test.java b/packages/MediaComponents/test/src/android/media/MediaMetadata2Test.java
index ea42651..06b51bd 100644
--- a/packages/MediaComponents/test/src/android/media/MediaMetadata2Test.java
+++ b/packages/MediaComponents/test/src/android/media/MediaMetadata2Test.java
@@ -42,20 +42,20 @@
 
     @Test
     public void testBuilder() {
-        final Bundle extra = new Bundle();
-        extra.putString("MediaMetadata2Test", "testBuilder");
+        final Bundle extras = new Bundle();
+        extras.putString("MediaMetadata2Test", "testBuilder");
         final String title = "title";
         final long discNumber = 10;
         final Rating2 rating = Rating2.newThumbRating(mContext, true);
 
         MediaMetadata2.Builder builder = new Builder(mContext);
-        builder.setExtra(extra);
+        builder.setExtras(extras);
         builder.putString(MediaMetadata2.METADATA_KEY_DISPLAY_TITLE, title);
         builder.putLong(MediaMetadata2.METADATA_KEY_DISC_NUMBER, discNumber);
         builder.putRating(MediaMetadata2.METADATA_KEY_USER_RATING, rating);
 
         MediaMetadata2 metadata = builder.build();
-        assertTrue(TestUtils.equals(extra, metadata.getExtra()));
+        assertTrue(TestUtils.equals(extras, metadata.getExtras()));
         assertEquals(title, metadata.getString(MediaMetadata2.METADATA_KEY_DISPLAY_TITLE));
         assertEquals(discNumber, metadata.getLong(MediaMetadata2.METADATA_KEY_DISC_NUMBER));
         assertEquals(rating, metadata.getRating(MediaMetadata2.METADATA_KEY_USER_RATING));
diff --git a/packages/MediaComponents/test/src/android/media/MediaSession2Test.java b/packages/MediaComponents/test/src/android/media/MediaSession2Test.java
index 9de4ce7..441d38c 100644
--- a/packages/MediaComponents/test/src/android/media/MediaSession2Test.java
+++ b/packages/MediaComponents/test/src/android/media/MediaSession2Test.java
@@ -29,7 +29,7 @@
 
 import android.content.Context;
 import android.media.MediaController2.PlaybackInfo;
-import android.media.MediaPlayerInterface.EventCallback;
+import android.media.MediaPlayerBase.EventCallback;
 import android.media.MediaSession2.Builder;
 import android.media.MediaSession2.Command;
 import android.media.MediaSession2.CommandButton;
@@ -73,7 +73,7 @@
         super.setUp();
         mPlayer = new MockPlayer(0);
         mSession = new MediaSession2.Builder(mContext, mPlayer)
-                .setSessionCallback(sHandlerExecutor, new SessionCallback(mContext)).build();
+                .setSessionCallback(sHandlerExecutor, new SessionCallback(mContext) {}).build();
     }
 
     @After
diff --git a/packages/MediaComponents/test/src/android/media/MediaSession2TestBase.java b/packages/MediaComponents/test/src/android/media/MediaSession2TestBase.java
index 7106561..c30b9a6 100644
--- a/packages/MediaComponents/test/src/android/media/MediaSession2TestBase.java
+++ b/packages/MediaComponents/test/src/android/media/MediaSession2TestBase.java
@@ -117,8 +117,7 @@
      * @return a PlaybackState
      */
     public PlaybackState2 createPlaybackState(int state) {
-        return new PlaybackState2(mContext, state, 0, 0, 1.0f,
-                0, 0);
+        return new PlaybackState2(mContext, state, 0, 0, 1.0f, 0, 0);
     }
 
     final MediaController2 createController(SessionToken2 token) throws InterruptedException {
diff --git a/packages/MediaComponents/test/src/android/media/MediaSessionManager_MediaSession2.java b/packages/MediaComponents/test/src/android/media/MediaSessionManager_MediaSession2.java
index d61baab..50599b6 100644
--- a/packages/MediaComponents/test/src/android/media/MediaSessionManager_MediaSession2.java
+++ b/packages/MediaComponents/test/src/android/media/MediaSessionManager_MediaSession2.java
@@ -55,7 +55,7 @@
         // per test thread differs across the {@link MediaSession2} with the same TAG.
         final MockPlayer player = new MockPlayer(1);
         mSession = new MediaSession2.Builder(mContext, player)
-                .setSessionCallback(sHandlerExecutor, new SessionCallback(mContext))
+                .setSessionCallback(sHandlerExecutor, new SessionCallback(mContext) { })
                 .setId(TAG)
                 .build();
         ensureChangeInSession();
diff --git a/packages/MediaComponents/test/src/android/media/MockMediaLibraryService2.java b/packages/MediaComponents/test/src/android/media/MockMediaLibraryService2.java
index e1cce25..b0fbde0 100644
--- a/packages/MediaComponents/test/src/android/media/MockMediaLibraryService2.java
+++ b/packages/MediaComponents/test/src/android/media/MockMediaLibraryService2.java
@@ -23,6 +23,8 @@
 import android.content.Context;
 import android.media.MediaSession2.CommandGroup;
 import android.media.MediaSession2.ControllerInfo;
+import android.media.MediaLibraryService2.MediaLibrarySession;
+import android.media.MediaLibraryService2.MediaLibrarySession.MediaLibrarySessionCallback;
 import android.media.TestServiceRegistry.SessionCallbackProxy;
 import android.media.TestUtils.SyncHandler;
 import android.os.Bundle;
@@ -112,7 +114,7 @@
         }
         TestLibrarySessionCallback callback =
                 new TestLibrarySessionCallback(sessionCallbackProxy);
-        mSession = new MediaLibrarySessionBuilder(MockMediaLibraryService2.this, player,
+        mSession = new MediaLibrarySession.Builder(MockMediaLibraryService2.this, player,
                 executor, callback).setId(sessionId).build();
         return mSession;
     }
@@ -148,12 +150,12 @@
         }
 
         @Override
-        public LibraryRoot onGetRoot(ControllerInfo controller, Bundle rootHints) {
+        public LibraryRoot onGetLibraryRoot(ControllerInfo controller, Bundle rootHints) {
             return new LibraryRoot(MockMediaLibraryService2.this, ROOT_ID, EXTRAS);
         }
 
         @Override
-        public MediaItem2 onLoadItem(ControllerInfo controller, String mediaId) {
+        public MediaItem2 onGetItem(ControllerInfo controller, String mediaId) {
             if (MEDIA_ID_GET_ITEM.equals(mediaId)) {
                 return createMediaItem(mediaId);
             } else {
@@ -162,7 +164,7 @@
         }
 
         @Override
-        public List<MediaItem2> onLoadChildren(ControllerInfo controller, String parentId, int page,
+        public List<MediaItem2> onGetChildren(ControllerInfo controller, String parentId, int page,
                 int pageSize, Bundle extras) {
             if (PARENT_ID.equals(parentId)) {
                 return getPaginatedResult(GET_CHILDREN_RESULT, page, pageSize);
@@ -195,7 +197,7 @@
         }
 
         @Override
-        public List<MediaItem2> onLoadSearchResult(ControllerInfo controllerInfo,
+        public List<MediaItem2> onGetSearchResult(ControllerInfo controllerInfo,
                 String query, int page, int pageSize, Bundle extras) {
             if (SEARCH_QUERY.equals(query)) {
                 return getPaginatedResult(SEARCH_RESULT, page, pageSize);
@@ -205,13 +207,13 @@
         }
 
         @Override
-        public void onSubscribed(ControllerInfo controller, String parentId, Bundle extras) {
-            mCallbackProxy.onSubscribed(controller, parentId, extras);
+        public void onSubscribe(ControllerInfo controller, String parentId, Bundle extras) {
+            mCallbackProxy.onSubscribe(controller, parentId, extras);
         }
 
         @Override
-        public void onUnsubscribed(ControllerInfo controller, String parentId) {
-            mCallbackProxy.onUnsubscribed(controller, parentId);
+        public void onUnsubscribe(ControllerInfo controller, String parentId) {
+            mCallbackProxy.onUnsubscribe(controller, parentId);
         }
     }
 
diff --git a/packages/MediaComponents/test/src/android/media/MockMediaSessionService2.java b/packages/MediaComponents/test/src/android/media/MockMediaSessionService2.java
index 12c2c9f..b63104a 100644
--- a/packages/MediaComponents/test/src/android/media/MockMediaSessionService2.java
+++ b/packages/MediaComponents/test/src/android/media/MockMediaSessionService2.java
@@ -77,7 +77,7 @@
     }
 
     @Override
-    public MediaNotification onUpdateNotification(PlaybackState2 state) {
+    public MediaNotification onUpdateNotification() {
         if (mDefaultNotificationChannel == null) {
             mDefaultNotificationChannel = new NotificationChannel(
                     DEFAULT_MEDIA_NOTIFICATION_CHANNEL_ID,
@@ -88,7 +88,7 @@
         Notification notification = new Notification.Builder(
                 this, DEFAULT_MEDIA_NOTIFICATION_CHANNEL_ID)
                 .setContentTitle(getPackageName())
-                .setContentText("Playback state: " + state.getState())
+                .setContentText("Dummt test notification")
                 .setSmallIcon(android.R.drawable.sym_def_app_icon).build();
         return new MediaNotification(this, DEFAULT_MEDIA_NOTIFICATION_ID, notification);
     }
diff --git a/packages/MediaComponents/test/src/android/media/MockPlayer.java b/packages/MediaComponents/test/src/android/media/MockPlayer.java
index ae31ce6..1b3da73 100644
--- a/packages/MediaComponents/test/src/android/media/MockPlayer.java
+++ b/packages/MediaComponents/test/src/android/media/MockPlayer.java
@@ -21,15 +21,14 @@
 import android.support.annotation.Nullable;
 import android.util.ArrayMap;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.Executor;
 
 /**
- * A mock implementation of {@link MediaPlayerInterface} for testing.
+ * A mock implementation of {@link MediaPlayerBase} for testing.
  */
-public class MockPlayer implements MediaPlayerInterface {
+public class MockPlayer extends MediaPlayerBase {
     public final CountDownLatch mCountDownLatch;
 
     public boolean mPlayCalled;
@@ -43,7 +42,7 @@
     public boolean mSeekToCalled;
     public long mSeekPosition;
     public boolean mSetCurrentPlaylistItemCalled;
-    public int mItemIndex;
+    public MediaItem2 mCurrentItem;
     public boolean mSetPlaylistCalled;
     public boolean mSetPlaylistParamsCalled;
 
@@ -59,6 +58,11 @@
     }
 
     @Override
+    public void close() {
+        // no-op
+    }
+
+    @Override
     public void play() {
         mPlayCalled = true;
         if (mCountDownLatch != null) {
@@ -132,9 +136,9 @@
     }
 
     @Override
-    public void setCurrentPlaylistItem(int index) {
+    public void setCurrentPlaylistItem(MediaItem2 item) {
         mSetCurrentPlaylistItemCalled = true;
-        mItemIndex = index;
+        mCurrentItem = item;
         if (mCountDownLatch != null) {
             mCountDownLatch.countDown();
         }
@@ -147,6 +151,11 @@
     }
 
     @Override
+    public int getPlayerState() {
+        return mLastPlaybackState.getState();
+    }
+
+    @Override
     public void registerEventCallback(@NonNull Executor executor,
             @NonNull EventCallback callback) {
         mCallbacks.put(callback, executor);
diff --git a/packages/MediaComponents/test/src/android/media/TestServiceRegistry.java b/packages/MediaComponents/test/src/android/media/TestServiceRegistry.java
index a18ad8e..08e0cf0 100644
--- a/packages/MediaComponents/test/src/android/media/TestServiceRegistry.java
+++ b/packages/MediaComponents/test/src/android/media/TestServiceRegistry.java
@@ -75,8 +75,8 @@
          */
         public void onServiceDestroyed() { }
 
-        public void onSubscribed(ControllerInfo info, String parentId, Bundle extra) { }
-        public void onUnsubscribed(ControllerInfo info, String parentId) { }
+        public void onSubscribe(ControllerInfo info, String parentId, Bundle extra) { }
+        public void onUnsubscribe(ControllerInfo info, String parentId) { }
     }
 
     @GuardedBy("TestServiceRegistry.class")
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 9a30f71..229e08e 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -39,8 +39,8 @@
 #include <memunreachable/memunreachable.h>
 #include <utils/String16.h>
 #include <utils/threads.h>
-#include <utils/Atomic.h>
 
+#include <cutils/atomic.h>
 #include <cutils/properties.h>
 
 #include <system/audio.h>
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index ebd1b18..0e2da4e 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -27,6 +27,7 @@
 
 #include <android-base/macros.h>
 
+#include <cutils/atomic.h>
 #include <cutils/compiler.h>
 #include <cutils/properties.h>
 
@@ -38,7 +39,6 @@
 #include <media/MmapStreamInterface.h>
 #include <media/MmapStreamCallback.h>
 
-#include <utils/Atomic.h>
 #include <utils/Errors.h>
 #include <utils/threads.h>
 #include <utils/SortedVector.h>
diff --git a/services/audioflinger/Effects.cpp b/services/audioflinger/Effects.cpp
index 0ce5350..979290f 100644
--- a/services/audioflinger/Effects.cpp
+++ b/services/audioflinger/Effects.cpp
@@ -589,13 +589,6 @@
         status = cmdStatus;
     }
 
-    // Ignore error if non-offloadable effect is created on an offload thread.
-    // Will be switched to non-offload thread when the effect is enabled.
-    if (status != NO_ERROR && thread->type() == ThreadBase::OFFLOAD && !isOffloaded()) {
-        ALOGV("Ignore error %d on non-offloadable effect on offload thread", status);
-        status = NO_ERROR;
-    }
-
 #ifdef MULTICHANNEL_EFFECT_CHAIN
     if (status != NO_ERROR &&
             (mConfig.inputCfg.channels != AUDIO_CHANNEL_OUT_STEREO
diff --git a/services/camera/libcameraservice/CameraService.cpp b/services/camera/libcameraservice/CameraService.cpp
index 1df6b6a..dcc7ad2 100644
--- a/services/camera/libcameraservice/CameraService.cpp
+++ b/services/camera/libcameraservice/CameraService.cpp
@@ -2239,9 +2239,13 @@
     // Transition device availability listeners from PRESENT -> NOT_AVAILABLE
     sCameraService->updateStatus(StatusInternal::NOT_AVAILABLE, mCameraIdStr);
 
+    int apiLevel = hardware::ICameraServiceProxy::CAMERA_API_LEVEL_1;
+    if (canCastToApiClient(API_2)) {
+        apiLevel = hardware::ICameraServiceProxy::CAMERA_API_LEVEL_2;
+    }
     // Transition device state to OPEN
     sCameraService->updateProxyDeviceState(ICameraServiceProxy::CAMERA_STATE_OPEN,
-            mCameraIdStr, mCameraFacing, mClientPackageName);
+            mCameraIdStr, mCameraFacing, mClientPackageName, apiLevel);
 
     return OK;
 }
@@ -2266,9 +2270,13 @@
         sCameraService->updateStatus(StatusInternal::PRESENT,
                 mCameraIdStr, rejected);
 
+        int apiLevel = hardware::ICameraServiceProxy::CAMERA_API_LEVEL_1;
+        if (canCastToApiClient(API_2)) {
+            apiLevel = hardware::ICameraServiceProxy::CAMERA_API_LEVEL_2;
+        }
         // Transition device state to CLOSED
         sCameraService->updateProxyDeviceState(ICameraServiceProxy::CAMERA_STATE_CLOSED,
-                mCameraIdStr, mCameraFacing, mClientPackageName);
+                mCameraIdStr, mCameraFacing, mClientPackageName, apiLevel);
     }
     // Always stop watching, even if no camera op is active
     if (mOpsCallback != NULL) {
@@ -2884,11 +2892,11 @@
 }
 
 void CameraService::updateProxyDeviceState(int newState,
-        const String8& cameraId, int facing, const String16& clientName) {
+        const String8& cameraId, int facing, const String16& clientName, int apiLevel) {
     sp<ICameraServiceProxy> proxyBinder = getCameraServiceProxy();
     if (proxyBinder == nullptr) return;
     String16 id(cameraId);
-    proxyBinder->notifyCameraState(id, newState, facing, clientName);
+    proxyBinder->notifyCameraState(id, newState, facing, clientName, apiLevel);
 }
 
 status_t CameraService::getTorchStatusLocked(
diff --git a/services/camera/libcameraservice/CameraService.h b/services/camera/libcameraservice/CameraService.h
index cbfc50b..3812925 100644
--- a/services/camera/libcameraservice/CameraService.h
+++ b/services/camera/libcameraservice/CameraService.h
@@ -189,7 +189,8 @@
             int newState,
             const String8& cameraId,
             int facing,
-            const String16& clientName);
+            const String16& clientName,
+            int apiLevel);
 
     /////////////////////////////////////////////////////////////////////
     // CameraDeviceFactory functionality
diff --git a/services/camera/libcameraservice/api1/CameraClient.cpp b/services/camera/libcameraservice/api1/CameraClient.cpp
index f6d27ab..f1203f9 100644
--- a/services/camera/libcameraservice/api1/CameraClient.cpp
+++ b/services/camera/libcameraservice/api1/CameraClient.cpp
@@ -263,7 +263,8 @@
     mHardware->stopPreview();
     sCameraService->updateProxyDeviceState(
             hardware::ICameraServiceProxy::CAMERA_STATE_IDLE,
-            mCameraIdStr, mCameraFacing, mClientPackageName);
+            mCameraIdStr, mCameraFacing, mClientPackageName,
+            hardware::ICameraServiceProxy::CAMERA_API_LEVEL_1);
     mHardware->cancelPicture();
     // Release the hardware resources.
     mHardware->release();
@@ -425,7 +426,8 @@
     if (result == NO_ERROR) {
         sCameraService->updateProxyDeviceState(
             hardware::ICameraServiceProxy::CAMERA_STATE_ACTIVE,
-            mCameraIdStr, mCameraFacing, mClientPackageName);
+            mCameraIdStr, mCameraFacing, mClientPackageName,
+            hardware::ICameraServiceProxy::CAMERA_API_LEVEL_1);
     }
     return result;
 }
@@ -468,7 +470,8 @@
     mHardware->stopPreview();
     sCameraService->updateProxyDeviceState(
         hardware::ICameraServiceProxy::CAMERA_STATE_IDLE,
-        mCameraIdStr, mCameraFacing, mClientPackageName);
+        mCameraIdStr, mCameraFacing, mClientPackageName,
+        hardware::ICameraServiceProxy::CAMERA_API_LEVEL_1);
     mPreviewBuffer.clear();
 }
 
@@ -974,7 +977,8 @@
     // idle now, until preview is restarted
     sCameraService->updateProxyDeviceState(
         hardware::ICameraServiceProxy::CAMERA_STATE_IDLE,
-        mCameraIdStr, mCameraFacing, mClientPackageName);
+        mCameraIdStr, mCameraFacing, mClientPackageName,
+        hardware::ICameraServiceProxy::CAMERA_API_LEVEL_1);
 
     mLock.unlock();
 }
diff --git a/services/camera/libcameraservice/common/Camera2ClientBase.cpp b/services/camera/libcameraservice/common/Camera2ClientBase.cpp
index 459e45d..ce006a7 100644
--- a/services/camera/libcameraservice/common/Camera2ClientBase.cpp
+++ b/services/camera/libcameraservice/common/Camera2ClientBase.cpp
@@ -253,7 +253,9 @@
     if (mDeviceActive) {
         getCameraService()->updateProxyDeviceState(
             hardware::ICameraServiceProxy::CAMERA_STATE_IDLE, TClientBase::mCameraIdStr,
-            TClientBase::mCameraFacing, TClientBase::mClientPackageName);
+            TClientBase::mCameraFacing, TClientBase::mClientPackageName,
+            ((mApi1CameraId < 0) ? hardware::ICameraServiceProxy::CAMERA_API_LEVEL_2 :
+             hardware::ICameraServiceProxy::CAMERA_API_LEVEL_1));
     }
     mDeviceActive = false;
 
@@ -269,7 +271,9 @@
     if (!mDeviceActive) {
         getCameraService()->updateProxyDeviceState(
             hardware::ICameraServiceProxy::CAMERA_STATE_ACTIVE, TClientBase::mCameraIdStr,
-            TClientBase::mCameraFacing, TClientBase::mClientPackageName);
+            TClientBase::mCameraFacing, TClientBase::mClientPackageName,
+            ((mApi1CameraId < 0) ? hardware::ICameraServiceProxy::CAMERA_API_LEVEL_2 :
+             hardware::ICameraServiceProxy::CAMERA_API_LEVEL_1));
     }
     mDeviceActive = true;