MediaPlayer2: Remove libdrmframework.so dependency.

libdrmframework.so is being used in FileSource and MediaHTTP
for Forward Lock DRM use case.
This change removes this dependency from MediaPlayer2 by adding
ClearFileSource and ClearMediaHTTP.
Forward Lock DRM use case will be covered by MediaPlayer1.

Test: build & MediaPlayerTest & DrmTest
Bug: 111406958
Change-Id: I5cf51b2d6f477e8fa8950ac931c0142491baa747
diff --git a/media/libmediaplayer2/nuplayer2/GenericSource2.cpp b/media/libmediaplayer2/nuplayer2/GenericSource2.cpp
index 196b103..a6d88a2 100644
--- a/media/libmediaplayer2/nuplayer2/GenericSource2.cpp
+++ b/media/libmediaplayer2/nuplayer2/GenericSource2.cpp
@@ -34,7 +34,7 @@
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
-#include <media/stagefright/DataSourceFactory.h>
+#include <media/stagefright/ClearDataSourceFactory.h>
 #include <media/stagefright/InterfaceUtils.h>
 #include <media/stagefright/MediaBuffer.h>
 #include <media/stagefright/MediaClock.h>
@@ -368,7 +368,7 @@
             String8 contentType;
 
             if (!strncasecmp("http://", uri, 7) || !strncasecmp("https://", uri, 8)) {
-                mHttpSource = DataSourceFactory::CreateMediaHTTP(mHTTPService);
+                mHttpSource = ClearDataSourceFactory::CreateMediaHTTP(mHTTPService);
                 if (mHttpSource == NULL) {
                     ALOGE("Failed to create http source!");
                     notifyPreparedAndCleanup(UNKNOWN_ERROR);
@@ -378,7 +378,7 @@
 
             mLock.unlock();
             // This might take long time if connection has some issue.
-            sp<DataSource> dataSource = DataSourceFactory::CreateFromURI(
+            sp<DataSource> dataSource = ClearDataSourceFactory::CreateFromURI(
                    mHTTPService, uri, &mUriHeaders, &contentType,
                    static_cast<HTTPBase *>(mHttpSource.get()));
             mLock.lock();
diff --git a/media/libstagefright/Android.bp b/media/libstagefright/Android.bp
index 48e351b..27383cb 100644
--- a/media/libstagefright/Android.bp
+++ b/media/libstagefright/Android.bp
@@ -105,6 +105,7 @@
         "DataConverter.cpp",
         "DataSourceFactory.cpp",
         "DataURISource.cpp",
+        "ClearFileSource.cpp",
         "FileSource.cpp",
         "FrameDecoder.cpp",
         "HTTPBase.cpp",
@@ -121,6 +122,7 @@
         "MediaCodecSource.cpp",
         "MediaExtractorFactory.cpp",
         "MediaSync.cpp",
+        "http/ClearMediaHTTP.cpp",
         "http/MediaHTTP.cpp",
         "MediaMuxer.cpp",
         "NuCachedSource2.cpp",
@@ -232,9 +234,9 @@
     srcs: [
         "CallbackDataSource.cpp",
         "CallbackMediaSource.cpp",
-        "DataSourceFactory.cpp",
+        "ClearDataSourceFactory.cpp",
+        "ClearFileSource.cpp",
         "DataURISource.cpp",
-        "FileSource.cpp",
         "HTTPBase.cpp",
         "HevcUtils.cpp",
         "InterfaceUtils.cpp",
@@ -246,13 +248,12 @@
         "RemoteMediaSource.cpp",
         "Utils.cpp",
         "VideoFrameScheduler.cpp",
-        "http/MediaHTTP.cpp",
+        "http/ClearMediaHTTP.cpp",
     ],
 
     shared_libs: [
         "libbinder",
         "libcutils",
-        "libdrmframework",
         "libgui",
         "liblog",
         "libmedia_player2_util",
diff --git a/media/libstagefright/ClearDataSourceFactory.cpp b/media/libstagefright/ClearDataSourceFactory.cpp
new file mode 100644
index 0000000..5d23fda
--- /dev/null
+++ b/media/libstagefright/ClearDataSourceFactory.cpp
@@ -0,0 +1,117 @@
+/*
+ * 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 "ClearDataSourceFactory"
+
+#include "include/HTTPBase.h"
+#include "include/NuCachedSource2.h"
+
+#include <media/MediaHTTPConnection.h>
+#include <media/MediaHTTPService.h>
+#include <media/stagefright/ClearFileSource.h>
+#include <media/stagefright/ClearMediaHTTP.h>
+#include <media/stagefright/ClearDataSourceFactory.h>
+#include <media/stagefright/DataURISource.h>
+#include <utils/String8.h>
+
+namespace android {
+
+// static
+sp<DataSource> ClearDataSourceFactory::CreateFromURI(
+        const sp<MediaHTTPService> &httpService,
+        const char *uri,
+        const KeyedVector<String8, String8> *headers,
+        String8 *contentType,
+        HTTPBase *httpSource) {
+    if (contentType != NULL) {
+        *contentType = "";
+    }
+
+    sp<DataSource> source;
+    if (!strncasecmp("file://", uri, 7)) {
+        source = new ClearFileSource(uri + 7);
+    } else if (!strncasecmp("http://", uri, 7) || !strncasecmp("https://", uri, 8)) {
+        if (httpService == NULL) {
+            ALOGE("Invalid http service!");
+            return NULL;
+        }
+
+        if (httpSource == NULL) {
+            sp<MediaHTTPConnection> conn = httpService->makeHTTPConnection();
+            if (conn == NULL) {
+                ALOGE("Failed to make http connection from http service!");
+                return NULL;
+            }
+            httpSource = new ClearMediaHTTP(conn);
+        }
+
+        String8 cacheConfig;
+        bool disconnectAtHighwatermark = false;
+        KeyedVector<String8, String8> nonCacheSpecificHeaders;
+        if (headers != NULL) {
+            nonCacheSpecificHeaders = *headers;
+            NuCachedSource2::RemoveCacheSpecificHeaders(
+                    &nonCacheSpecificHeaders,
+                    &cacheConfig,
+                    &disconnectAtHighwatermark);
+        }
+
+        if (httpSource->connect(uri, &nonCacheSpecificHeaders) != OK) {
+            ALOGE("Failed to connect http source!");
+            return NULL;
+        }
+
+        if (contentType != NULL) {
+            *contentType = httpSource->getMIMEType();
+        }
+
+        source = NuCachedSource2::Create(
+                httpSource,
+                cacheConfig.isEmpty() ? NULL : cacheConfig.string(),
+                disconnectAtHighwatermark);
+    } else if (!strncasecmp("data:", uri, 5)) {
+        source = DataURISource::Create(uri);
+    } else {
+        // Assume it's a filename.
+        source = new ClearFileSource(uri);
+    }
+
+    if (source == NULL || source->initCheck() != OK) {
+        return NULL;
+    }
+
+    return source;
+}
+
+sp<DataSource> ClearDataSourceFactory::CreateFromFd(int fd, int64_t offset, int64_t length) {
+    sp<ClearFileSource> source = new ClearFileSource(fd, offset, length);
+    return source->initCheck() != OK ? nullptr : source;
+}
+
+sp<DataSource> ClearDataSourceFactory::CreateMediaHTTP(const sp<MediaHTTPService> &httpService) {
+    if (httpService == NULL) {
+        return NULL;
+    }
+
+    sp<MediaHTTPConnection> conn = httpService->makeHTTPConnection();
+    if (conn == NULL) {
+        return NULL;
+    } else {
+        return new ClearMediaHTTP(conn);
+    }
+}
+
+}  // namespace android
diff --git a/media/libstagefright/ClearFileSource.cpp b/media/libstagefright/ClearFileSource.cpp
new file mode 100644
index 0000000..e3a2cb7
--- /dev/null
+++ b/media/libstagefright/ClearFileSource.cpp
@@ -0,0 +1,143 @@
+/*
+ * 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 "ClearFileSource"
+#include <utils/Log.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/ClearFileSource.h>
+#include <media/stagefright/Utils.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+namespace android {
+
+ClearFileSource::ClearFileSource(const char *filename)
+    : mFd(-1),
+      mOffset(0),
+      mLength(-1),
+      mName("<null>") {
+
+    if (filename) {
+        mName = String8::format("FileSource(%s)", filename);
+    }
+    ALOGV("%s", filename);
+    mFd = open(filename, O_LARGEFILE | O_RDONLY);
+
+    if (mFd >= 0) {
+        mLength = lseek64(mFd, 0, SEEK_END);
+    } else {
+        ALOGE("Failed to open file '%s'. (%s)", filename, strerror(errno));
+    }
+}
+
+ClearFileSource::ClearFileSource(int fd, int64_t offset, int64_t length)
+    : mFd(fd),
+      mOffset(offset),
+      mLength(length),
+      mName("<null>") {
+    ALOGV("fd=%d (%s), offset=%lld, length=%lld",
+            fd, nameForFd(fd).c_str(), (long long) offset, (long long) length);
+
+    if (mOffset < 0) {
+        mOffset = 0;
+    }
+    if (mLength < 0) {
+        mLength = 0;
+    }
+    if (mLength > INT64_MAX - mOffset) {
+        mLength = INT64_MAX - mOffset;
+    }
+    struct stat s;
+    if (fstat(fd, &s) == 0) {
+        if (mOffset > s.st_size) {
+            mOffset = s.st_size;
+            mLength = 0;
+        }
+        if (mOffset + mLength > s.st_size) {
+            mLength = s.st_size - mOffset;
+        }
+    }
+    if (mOffset != offset || mLength != length) {
+        ALOGW("offset/length adjusted from %lld/%lld to %lld/%lld",
+                (long long) offset, (long long) length,
+                (long long) mOffset, (long long) mLength);
+    }
+
+    mName = String8::format(
+            "FileSource(fd(%s), %lld, %lld)",
+            nameForFd(fd).c_str(),
+            (long long) mOffset,
+            (long long) mLength);
+
+}
+
+ClearFileSource::~ClearFileSource() {
+    if (mFd >= 0) {
+        ::close(mFd);
+        mFd = -1;
+    }
+}
+
+status_t ClearFileSource::initCheck() const {
+    return mFd >= 0 ? OK : NO_INIT;
+}
+
+ssize_t ClearFileSource::readAt(off64_t offset, void *data, size_t size) {
+    if (mFd < 0) {
+        return NO_INIT;
+    }
+
+    Mutex::Autolock autoLock(mLock);
+    if (mLength >= 0) {
+        if (offset >= mLength) {
+            return 0;  // read beyond EOF.
+        }
+        uint64_t numAvailable = mLength - offset;
+        if ((uint64_t)size > numAvailable) {
+            size = numAvailable;
+        }
+    }
+    return readAt_l(offset, data, size);
+}
+
+ssize_t ClearFileSource::readAt_l(off64_t offset, void *data, size_t size) {
+    off64_t result = lseek64(mFd, offset + mOffset, SEEK_SET);
+    if (result == -1) {
+        ALOGE("seek to %lld failed", (long long)(offset + mOffset));
+        return UNKNOWN_ERROR;
+    }
+
+    return ::read(mFd, data, size);
+}
+
+status_t ClearFileSource::getSize(off64_t *size) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mFd < 0) {
+        return NO_INIT;
+    }
+
+    *size = mLength;
+
+    return OK;
+}
+
+}  // namespace android
diff --git a/media/libstagefright/FileSource.cpp b/media/libstagefright/FileSource.cpp
index eef5314..aee7fd8 100644
--- a/media/libstagefright/FileSource.cpp
+++ b/media/libstagefright/FileSource.cpp
@@ -22,90 +22,28 @@
 #include <media/stagefright/FileSource.h>
 #include <media/stagefright/Utils.h>
 #include <private/android_filesystem_config.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
 
 namespace android {
 
 FileSource::FileSource(const char *filename)
-    : mFd(-1),
-      mOffset(0),
-      mLength(-1),
-      mName("<null>"),
+    : ClearFileSource(filename),
       mDecryptHandle(NULL),
       mDrmManagerClient(NULL),
       mDrmBufOffset(0),
       mDrmBufSize(0),
       mDrmBuf(NULL){
-
-    if (filename) {
-        mName = String8::format("FileSource(%s)", filename);
-    }
-    ALOGV("%s", filename);
-    mFd = open(filename, O_LARGEFILE | O_RDONLY);
-
-    if (mFd >= 0) {
-        mLength = lseek64(mFd, 0, SEEK_END);
-    } else {
-        ALOGE("Failed to open file '%s'. (%s)", filename, strerror(errno));
-    }
 }
 
 FileSource::FileSource(int fd, int64_t offset, int64_t length)
-    : mFd(fd),
-      mOffset(offset),
-      mLength(length),
-      mName("<null>"),
+    : ClearFileSource(fd, offset, length),
       mDecryptHandle(NULL),
       mDrmManagerClient(NULL),
       mDrmBufOffset(0),
       mDrmBufSize(0),
       mDrmBuf(NULL) {
-    ALOGV("fd=%d (%s), offset=%lld, length=%lld",
-            fd, nameForFd(fd).c_str(), (long long) offset, (long long) length);
-
-    if (mOffset < 0) {
-        mOffset = 0;
-    }
-    if (mLength < 0) {
-        mLength = 0;
-    }
-    if (mLength > INT64_MAX - mOffset) {
-        mLength = INT64_MAX - mOffset;
-    }
-    struct stat s;
-    if (fstat(fd, &s) == 0) {
-        if (mOffset > s.st_size) {
-            mOffset = s.st_size;
-            mLength = 0;
-        }
-        if (mOffset + mLength > s.st_size) {
-            mLength = s.st_size - mOffset;
-        }
-    }
-    if (mOffset != offset || mLength != length) {
-        ALOGW("offset/length adjusted from %lld/%lld to %lld/%lld",
-                (long long) offset, (long long) length,
-                (long long) mOffset, (long long) mLength);
-    }
-
-    mName = String8::format(
-            "FileSource(fd(%s), %lld, %lld)",
-            nameForFd(fd).c_str(),
-            (long long) mOffset,
-            (long long) mLength);
-
 }
 
 FileSource::~FileSource() {
-    if (mFd >= 0) {
-        ::close(mFd);
-        mFd = -1;
-    }
-
     if (mDrmBuf != NULL) {
         delete[] mDrmBuf;
         mDrmBuf = NULL;
@@ -124,10 +62,6 @@
     }
 }
 
-status_t FileSource::initCheck() const {
-    return mFd >= 0 ? OK : NO_INIT;
-}
-
 ssize_t FileSource::readAt(off64_t offset, void *data, size_t size) {
     if (mFd < 0) {
         return NO_INIT;
@@ -147,30 +81,12 @@
 
     if (mDecryptHandle != NULL && DecryptApiType::CONTAINER_BASED
             == mDecryptHandle->decryptApiType) {
-        return readAtDRM(offset, data, size);
+        return readAtDRM_l(offset, data, size);
    } else {
-        off64_t result = lseek64(mFd, offset + mOffset, SEEK_SET);
-        if (result == -1) {
-            ALOGE("seek to %lld failed", (long long)(offset + mOffset));
-            return UNKNOWN_ERROR;
-        }
-
-        return ::read(mFd, data, size);
+        return readAt_l(offset, data, size);
     }
 }
 
-status_t FileSource::getSize(off64_t *size) {
-    Mutex::Autolock autoLock(mLock);
-
-    if (mFd < 0) {
-        return NO_INIT;
-    }
-
-    *size = mLength;
-
-    return OK;
-}
-
 sp<DecryptHandle> FileSource::DrmInitialization(const char *mime) {
     if (getuid() == AID_MEDIA_EX) return nullptr; // no DRM in media extractor
     if (mDrmManagerClient == NULL) {
@@ -194,7 +110,7 @@
     return mDecryptHandle;
 }
 
-ssize_t FileSource::readAtDRM(off64_t offset, void *data, size_t size) {
+ssize_t FileSource::readAtDRM_l(off64_t offset, void *data, size_t size) {
     size_t DRM_CACHE_SIZE = 1024;
     if (mDrmBuf == NULL) {
         mDrmBuf = new unsigned char[DRM_CACHE_SIZE];
diff --git a/media/libstagefright/http/ClearMediaHTTP.cpp b/media/libstagefright/http/ClearMediaHTTP.cpp
new file mode 100644
index 0000000..bfbad1e
--- /dev/null
+++ b/media/libstagefright/http/ClearMediaHTTP.cpp
@@ -0,0 +1,180 @@
+/*
+ * 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 "ClearMediaHTTP"
+#include <utils/Log.h>
+
+#include <media/stagefright/ClearMediaHTTP.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/ALooper.h>
+#include <media/stagefright/Utils.h>
+
+#include <media/MediaHTTPConnection.h>
+
+namespace android {
+
+ClearMediaHTTP::ClearMediaHTTP(const sp<MediaHTTPConnection> &conn)
+    : mInitCheck((conn != NULL) ? OK : NO_INIT),
+      mHTTPConnection(conn),
+      mCachedSizeValid(false),
+      mCachedSize(0ll) {
+}
+
+ClearMediaHTTP::~ClearMediaHTTP() {
+}
+
+status_t ClearMediaHTTP::connect(
+        const char *uri,
+        const KeyedVector<String8, String8> *headers,
+        off64_t /* offset */) {
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    KeyedVector<String8, String8> extHeaders;
+    if (headers != NULL) {
+        extHeaders = *headers;
+    }
+
+    if (extHeaders.indexOfKey(String8("User-Agent")) < 0) {
+        extHeaders.add(String8("User-Agent"), String8(MakeUserAgent().c_str()));
+    }
+
+    mLastURI = uri;
+    // reconnect() calls with uri == old mLastURI.c_str(), which gets zapped
+    // as part of the above assignment. Ensure no accidental later use.
+    uri = NULL;
+
+    bool success = mHTTPConnection->connect(mLastURI.c_str(), &extHeaders);
+
+    mLastHeaders = extHeaders;
+
+    mCachedSizeValid = false;
+
+    if (success) {
+        AString sanitized = uriDebugString(mLastURI);
+        mName = String8::format("ClearMediaHTTP(%s)", sanitized.c_str());
+    }
+
+    return success ? OK : UNKNOWN_ERROR;
+}
+
+void ClearMediaHTTP::disconnect() {
+    mName = String8("ClearMediaHTTP(<disconnected>)");
+    if (mInitCheck != OK) {
+        return;
+    }
+
+    mHTTPConnection->disconnect();
+}
+
+status_t ClearMediaHTTP::initCheck() const {
+    return mInitCheck;
+}
+
+ssize_t ClearMediaHTTP::readAt(off64_t offset, void *data, size_t size) {
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    int64_t startTimeUs = ALooper::GetNowUs();
+
+    size_t numBytesRead = 0;
+    while (numBytesRead < size) {
+        size_t copy = size - numBytesRead;
+
+        if (copy > 64 * 1024) {
+            // limit the buffer sizes transferred across binder boundaries
+            // to avoid spurious transaction failures.
+            copy = 64 * 1024;
+        }
+
+        ssize_t n = mHTTPConnection->readAt(
+                offset + numBytesRead, (uint8_t *)data + numBytesRead, copy);
+
+        if (n < 0) {
+            return n;
+        } else if (n == 0) {
+            break;
+        }
+
+        numBytesRead += n;
+    }
+
+    int64_t delayUs = ALooper::GetNowUs() - startTimeUs;
+
+    addBandwidthMeasurement(numBytesRead, delayUs);
+
+    return numBytesRead;
+}
+
+status_t ClearMediaHTTP::getSize(off64_t *size) {
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    // Caching the returned size so that it stays valid even after a
+    // disconnect. NuCachedSource2 relies on this.
+
+    if (!mCachedSizeValid) {
+        mCachedSize = mHTTPConnection->getSize();
+        mCachedSizeValid = true;
+    }
+
+    *size = mCachedSize;
+
+    return *size < 0 ? *size : static_cast<status_t>(OK);
+}
+
+uint32_t ClearMediaHTTP::flags() {
+    return kWantsPrefetching | kIsHTTPBasedSource;
+}
+
+status_t ClearMediaHTTP::reconnectAtOffset(off64_t offset) {
+    return connect(mLastURI.c_str(), &mLastHeaders, offset);
+}
+
+
+String8 ClearMediaHTTP::getUri() {
+    if (mInitCheck != OK) {
+        return String8::empty();
+    }
+
+    String8 uri;
+    if (OK == mHTTPConnection->getUri(&uri)) {
+        return uri;
+    }
+    return String8(mLastURI.c_str());
+}
+
+String8 ClearMediaHTTP::getMIMEType() const {
+    if (mInitCheck != OK) {
+        return String8("application/octet-stream");
+    }
+
+    String8 mimeType;
+    status_t err = mHTTPConnection->getMIMEType(&mimeType);
+
+    if (err != OK) {
+        return String8("application/octet-stream");
+    }
+
+    return mimeType;
+}
+
+}  // namespace android
diff --git a/media/libstagefright/http/MediaHTTP.cpp b/media/libstagefright/http/MediaHTTP.cpp
index 7c9247e..0fba3dc 100644
--- a/media/libstagefright/http/MediaHTTP.cpp
+++ b/media/libstagefright/http/MediaHTTP.cpp
@@ -30,10 +30,7 @@
 namespace android {
 
 MediaHTTP::MediaHTTP(const sp<MediaHTTPConnection> &conn)
-    : mInitCheck((conn != NULL) ? OK : NO_INIT),
-      mHTTPConnection(conn),
-      mCachedSizeValid(false),
-      mCachedSize(0ll),
+    : ClearMediaHTTP(conn),
       mDrmManagerClient(NULL) {
 }
 
@@ -41,117 +38,6 @@
     clearDRMState_l();
 }
 
-status_t MediaHTTP::connect(
-        const char *uri,
-        const KeyedVector<String8, String8> *headers,
-        off64_t /* offset */) {
-    if (mInitCheck != OK) {
-        return mInitCheck;
-    }
-
-    KeyedVector<String8, String8> extHeaders;
-    if (headers != NULL) {
-        extHeaders = *headers;
-    }
-
-    if (extHeaders.indexOfKey(String8("User-Agent")) < 0) {
-        extHeaders.add(String8("User-Agent"), String8(MakeUserAgent().c_str()));
-    }
-
-    mLastURI = uri;
-    // reconnect() calls with uri == old mLastURI.c_str(), which gets zapped
-    // as part of the above assignment. Ensure no accidental later use.
-    uri = NULL;
-
-    bool success = mHTTPConnection->connect(mLastURI.c_str(), &extHeaders);
-
-    mLastHeaders = extHeaders;
-
-    mCachedSizeValid = false;
-
-    if (success) {
-        AString sanitized = uriDebugString(mLastURI);
-        mName = String8::format("MediaHTTP(%s)", sanitized.c_str());
-    }
-
-    return success ? OK : UNKNOWN_ERROR;
-}
-
-void MediaHTTP::disconnect() {
-    mName = String8("MediaHTTP(<disconnected>)");
-    if (mInitCheck != OK) {
-        return;
-    }
-
-    mHTTPConnection->disconnect();
-}
-
-status_t MediaHTTP::initCheck() const {
-    return mInitCheck;
-}
-
-ssize_t MediaHTTP::readAt(off64_t offset, void *data, size_t size) {
-    if (mInitCheck != OK) {
-        return mInitCheck;
-    }
-
-    int64_t startTimeUs = ALooper::GetNowUs();
-
-    size_t numBytesRead = 0;
-    while (numBytesRead < size) {
-        size_t copy = size - numBytesRead;
-
-        if (copy > 64 * 1024) {
-            // limit the buffer sizes transferred across binder boundaries
-            // to avoid spurious transaction failures.
-            copy = 64 * 1024;
-        }
-
-        ssize_t n = mHTTPConnection->readAt(
-                offset + numBytesRead, (uint8_t *)data + numBytesRead, copy);
-
-        if (n < 0) {
-            return n;
-        } else if (n == 0) {
-            break;
-        }
-
-        numBytesRead += n;
-    }
-
-    int64_t delayUs = ALooper::GetNowUs() - startTimeUs;
-
-    addBandwidthMeasurement(numBytesRead, delayUs);
-
-    return numBytesRead;
-}
-
-status_t MediaHTTP::getSize(off64_t *size) {
-    if (mInitCheck != OK) {
-        return mInitCheck;
-    }
-
-    // Caching the returned size so that it stays valid even after a
-    // disconnect. NuCachedSource2 relies on this.
-
-    if (!mCachedSizeValid) {
-        mCachedSize = mHTTPConnection->getSize();
-        mCachedSizeValid = true;
-    }
-
-    *size = mCachedSize;
-
-    return *size < 0 ? *size : static_cast<status_t>(OK);
-}
-
-uint32_t MediaHTTP::flags() {
-    return kWantsPrefetching | kIsHTTPBasedSource;
-}
-
-status_t MediaHTTP::reconnectAtOffset(off64_t offset) {
-    return connect(mLastURI.c_str(), &mLastHeaders, offset);
-}
-
 // DRM...
 
 sp<DecryptHandle> MediaHTTP::DrmInitialization(const char* mime) {
@@ -176,33 +62,6 @@
     return mDecryptHandle;
 }
 
-String8 MediaHTTP::getUri() {
-    if (mInitCheck != OK) {
-        return String8::empty();
-    }
-
-    String8 uri;
-    if (OK == mHTTPConnection->getUri(&uri)) {
-        return uri;
-    }
-    return String8(mLastURI.c_str());
-}
-
-String8 MediaHTTP::getMIMEType() const {
-    if (mInitCheck != OK) {
-        return String8("application/octet-stream");
-    }
-
-    String8 mimeType;
-    status_t err = mHTTPConnection->getMIMEType(&mimeType);
-
-    if (err != OK) {
-        return String8("application/octet-stream");
-    }
-
-    return mimeType;
-}
-
 void MediaHTTP::clearDRMState_l() {
     if (mDecryptHandle != NULL) {
         // To release mDecryptHandle
diff --git a/media/libstagefright/httplive/HTTPDownloader.cpp b/media/libstagefright/httplive/HTTPDownloader.cpp
index 72604e3..59265fe 100644
--- a/media/libstagefright/httplive/HTTPDownloader.cpp
+++ b/media/libstagefright/httplive/HTTPDownloader.cpp
@@ -26,8 +26,8 @@
 #include <media/MediaHTTPService.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/MediaHTTP.h>
-#include <media/stagefright/FileSource.h>
+#include <media/stagefright/ClearMediaHTTP.h>
+#include <media/stagefright/ClearFileSource.h>
 #include <openssl/aes.h>
 #include <openssl/md5.h>
 #include <utils/Mutex.h>
@@ -38,7 +38,7 @@
 HTTPDownloader::HTTPDownloader(
         const sp<MediaHTTPService> &httpService,
         const KeyedVector<String8, String8> &headers) :
-    mHTTPDataSource(new MediaHTTP(httpService->makeHTTPConnection())),
+    mHTTPDataSource(new ClearMediaHTTP(httpService->makeHTTPConnection())),
     mExtraHeaders(headers),
     mDisconnecting(false) {
 }
@@ -91,7 +91,7 @@
 
     if (reconnect) {
         if (!strncasecmp(url, "file://", 7)) {
-            mDataSource = new FileSource(url + 7);
+            mDataSource = new ClearFileSource(url + 7);
         } else if (strncasecmp(url, "http://", 7)
                 && strncasecmp(url, "https://", 8)) {
             return ERROR_UNSUPPORTED;
diff --git a/media/libstagefright/include/media/stagefright/ClearDataSourceFactory.h b/media/libstagefright/include/media/stagefright/ClearDataSourceFactory.h
new file mode 100644
index 0000000..12bcdd3
--- /dev/null
+++ b/media/libstagefright/include/media/stagefright/ClearDataSourceFactory.h
@@ -0,0 +1,45 @@
+/*
+ * 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 DATA_SOURCE_FACTORY2_H_
+
+#define DATA_SOURCE_FACTORY2_H_
+
+#include <sys/types.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+struct MediaHTTPService;
+class String8;
+struct HTTPBase;
+
+class ClearDataSourceFactory {
+public:
+    static sp<DataSource> CreateFromURI(
+            const sp<MediaHTTPService> &httpService,
+            const char *uri,
+            const KeyedVector<String8, String8> *headers = NULL,
+            String8 *contentType = NULL,
+            HTTPBase *httpSource = NULL);
+
+    static sp<DataSource> CreateMediaHTTP(const sp<MediaHTTPService> &httpService);
+    static sp<DataSource> CreateFromFd(int fd, int64_t offset, int64_t length);
+};
+
+}  // namespace android
+
+#endif  // DATA_SOURCE_FACTORY2_H_
diff --git a/media/libstagefright/include/media/stagefright/ClearFileSource.h b/media/libstagefright/include/media/stagefright/ClearFileSource.h
new file mode 100644
index 0000000..be83748
--- /dev/null
+++ b/media/libstagefright/include/media/stagefright/ClearFileSource.h
@@ -0,0 +1,68 @@
+/*
+ * 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 CLEAR_FILE_SOURCE_H_
+
+#define CLEAR_FILE_SOURCE_H_
+
+#include <stdio.h>
+
+#include <media/DataSource.h>
+#include <media/stagefright/MediaErrors.h>
+#include <utils/threads.h>
+
+namespace android {
+
+class ClearFileSource : public DataSource {
+public:
+    ClearFileSource(const char *filename);
+    // ClearFileSource takes ownership and will close the fd
+    ClearFileSource(int fd, int64_t offset, int64_t length);
+
+    virtual status_t initCheck() const;
+
+    virtual ssize_t readAt(off64_t offset, void *data, size_t size);
+
+    virtual status_t getSize(off64_t *size);
+
+    virtual uint32_t flags() {
+        return kIsLocalFileSource;
+    }
+
+    virtual String8 toString() {
+        return mName;
+    }
+
+protected:
+    virtual ~ClearFileSource();
+    virtual ssize_t readAt_l(off64_t offset, void *data, size_t size);
+
+    int mFd;
+    int64_t mOffset;
+    int64_t mLength;
+    Mutex mLock;
+
+private:
+    String8 mName;
+
+    ClearFileSource(const ClearFileSource &);
+    ClearFileSource &operator=(const ClearFileSource &);
+};
+
+}  // namespace android
+
+#endif  // CLEAR_FILE_SOURCE_H_
+
diff --git a/media/libstagefright/include/media/stagefright/ClearMediaHTTP.h b/media/libstagefright/include/media/stagefright/ClearMediaHTTP.h
new file mode 100644
index 0000000..7fe9c74
--- /dev/null
+++ b/media/libstagefright/include/media/stagefright/ClearMediaHTTP.h
@@ -0,0 +1,71 @@
+/*
+ * 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 CLEAR_MEDIA_HTTP_H_
+
+#define CLEAR_MEDIA_HTTP_H_
+
+#include <media/stagefright/foundation/AString.h>
+
+#include "include/HTTPBase.h"
+
+namespace android {
+
+struct MediaHTTPConnection;
+
+struct ClearMediaHTTP : public HTTPBase {
+    ClearMediaHTTP(const sp<MediaHTTPConnection> &conn);
+
+    virtual status_t connect(
+            const char *uri,
+            const KeyedVector<String8, String8> *headers,
+            off64_t offset);
+
+    virtual void disconnect();
+
+    virtual status_t initCheck() const;
+
+    virtual ssize_t readAt(off64_t offset, void *data, size_t size);
+
+    virtual status_t getSize(off64_t *size);
+
+    virtual uint32_t flags();
+
+    virtual status_t reconnectAtOffset(off64_t offset);
+
+protected:
+    virtual ~ClearMediaHTTP();
+
+    virtual String8 getUri();
+    virtual String8 getMIMEType() const;
+
+    AString mLastURI;
+
+private:
+    status_t mInitCheck;
+    sp<MediaHTTPConnection> mHTTPConnection;
+
+    KeyedVector<String8, String8> mLastHeaders;
+
+    bool mCachedSizeValid;
+    off64_t mCachedSize;
+
+    DISALLOW_EVIL_CONSTRUCTORS(ClearMediaHTTP);
+};
+
+}  // namespace android
+
+#endif  // CLEAR_MEDIA_HTTP_H_
diff --git a/media/libstagefright/include/media/stagefright/FileSource.h b/media/libstagefright/include/media/stagefright/FileSource.h
index 8604890..b610eef 100644
--- a/media/libstagefright/include/media/stagefright/FileSource.h
+++ b/media/libstagefright/include/media/stagefright/FileSource.h
@@ -20,47 +20,29 @@
 
 #include <stdio.h>
 
-#include <media/DataSource.h>
+#include <media/stagefright/ClearFileSource.h>
 #include <media/stagefright/MediaErrors.h>
 #include <utils/threads.h>
 #include <drm/DrmManagerClient.h>
 
 namespace android {
 
-class FileSource : public DataSource {
+class FileSource : public ClearFileSource {
 public:
     FileSource(const char *filename);
     // FileSource takes ownership and will close the fd
     FileSource(int fd, int64_t offset, int64_t length);
 
-    virtual status_t initCheck() const;
-
     virtual ssize_t readAt(off64_t offset, void *data, size_t size);
 
-    virtual status_t getSize(off64_t *size);
-
-    virtual uint32_t flags() {
-        return kIsLocalFileSource;
-    }
-
     virtual sp<DecryptHandle> DrmInitialization(const char *mime);
 
-    virtual String8 toString() {
-        return mName;
-    }
-
     static bool requiresDrm(int fd, int64_t offset, int64_t length, const char *mime);
 
 protected:
     virtual ~FileSource();
 
 private:
-    int mFd;
-    int64_t mOffset;
-    int64_t mLength;
-    Mutex mLock;
-    String8 mName;
-
     /*for DRM*/
     sp<DecryptHandle> mDecryptHandle;
     DrmManagerClient *mDrmManagerClient;
@@ -68,7 +50,7 @@
     ssize_t mDrmBufSize;
     unsigned char *mDrmBuf;
 
-    ssize_t readAtDRM(off64_t offset, void *data, size_t size);
+    ssize_t readAtDRM_l(off64_t offset, void *data, size_t size);
 
     FileSource(const FileSource &);
     FileSource &operator=(const FileSource &);
diff --git a/media/libstagefright/include/media/stagefright/MediaHTTP.h b/media/libstagefright/include/media/stagefright/MediaHTTP.h
index fe0e613..acaa6c4 100644
--- a/media/libstagefright/include/media/stagefright/MediaHTTP.h
+++ b/media/libstagefright/include/media/stagefright/MediaHTTP.h
@@ -19,50 +19,21 @@
 #define MEDIA_HTTP_H_
 
 #include <media/stagefright/foundation/AString.h>
-
-#include "include/HTTPBase.h"
+#include <media/stagefright/ClearMediaHTTP.h>
 
 namespace android {
 
 struct MediaHTTPConnection;
 
-struct MediaHTTP : public HTTPBase {
+struct MediaHTTP : public ClearMediaHTTP {
     MediaHTTP(const sp<MediaHTTPConnection> &conn);
 
-    virtual status_t connect(
-            const char *uri,
-            const KeyedVector<String8, String8> *headers,
-            off64_t offset);
-
-    virtual void disconnect();
-
-    virtual status_t initCheck() const;
-
-    virtual ssize_t readAt(off64_t offset, void *data, size_t size);
-
-    virtual status_t getSize(off64_t *size);
-
-    virtual uint32_t flags();
-
-    virtual status_t reconnectAtOffset(off64_t offset);
-
 protected:
     virtual ~MediaHTTP();
 
     virtual sp<DecryptHandle> DrmInitialization(const char* mime);
-    virtual String8 getUri();
-    virtual String8 getMIMEType() const;
 
 private:
-    status_t mInitCheck;
-    sp<MediaHTTPConnection> mHTTPConnection;
-
-    KeyedVector<String8, String8> mLastHeaders;
-    AString mLastURI;
-
-    bool mCachedSizeValid;
-    off64_t mCachedSize;
-
     sp<DecryptHandle> mDecryptHandle;
     DrmManagerClient *mDrmManagerClient;
 
diff --git a/media/libstagefright/rtsp/SDPLoader.cpp b/media/libstagefright/rtsp/SDPLoader.cpp
index d459cbd..665d51a 100644
--- a/media/libstagefright/rtsp/SDPLoader.cpp
+++ b/media/libstagefright/rtsp/SDPLoader.cpp
@@ -24,7 +24,7 @@
 
 #include <media/MediaHTTPConnection.h>
 #include <media/MediaHTTPService.h>
-#include <media/stagefright/MediaHTTP.h>
+#include <media/stagefright/ClearMediaHTTP.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/Utils.h>
@@ -41,7 +41,7 @@
       mFlags(flags),
       mNetLooper(new ALooper),
       mCancelled(false),
-      mHTTPDataSource(new MediaHTTP(httpService->makeHTTPConnection())) {
+      mHTTPDataSource(new ClearMediaHTTP(httpService->makeHTTPConnection())) {
     mNetLooper->setName("sdp net");
     mNetLooper->start(false /* runOnCallingThread */,
                       false /* canCallJava */,