diff --git a/cmds/stagefright/record.cpp b/cmds/stagefright/record.cpp
index 613435d..7703058 100644
--- a/cmds/stagefright/record.cpp
+++ b/cmds/stagefright/record.cpp
@@ -38,7 +38,7 @@
 static const int32_t kAudioBitRate = 12200;
 static const int64_t kDurationUs = 10000000LL;  // 10 seconds
 
-#if 1
+#if 0
 class DummySource : public MediaSource {
 
 public:
@@ -318,7 +318,7 @@
 
     sp<MetaData> encMeta = new MetaData;
     encMeta->setCString(kKeyMIMEType,
-            1 ? MEDIA_MIMETYPE_AUDIO_AMR_WB : MEDIA_MIMETYPE_AUDIO_AAC);
+            0 ? MEDIA_MIMETYPE_AUDIO_AMR_WB : MEDIA_MIMETYPE_AUDIO_AAC);
     encMeta->setInt32(kKeySampleRate, kSampleRate);
     encMeta->setInt32(kKeyChannelCount, kNumChannels);
     encMeta->setInt32(kKeyMaxInputSize, 8192);
diff --git a/include/media/AudioRecord.h b/include/media/AudioRecord.h
index 756e91d..76ec3b1 100644
--- a/include/media/AudioRecord.h
+++ b/include/media/AudioRecord.h
@@ -149,7 +149,7 @@
          RECORD_IIR_ENABLE = AUDIO_IN_ACOUSTICS_TX_IIR_ENABLE,
      };
 
-                        AudioRecord(int inputSource,
+                        AudioRecord(audio_source_t inputSource,
                                     uint32_t sampleRate = 0,
                                     audio_format_t format = AUDIO_FORMAT_DEFAULT,
                                     uint32_t channelMask = AUDIO_CHANNEL_IN_MONO,
@@ -175,7 +175,7 @@
      *  - NO_INIT: audio server or audio hardware not initialized
      *  - PERMISSION_DENIED: recording is not allowed for the requesting process
      * */
-            status_t    set(int inputSource     = 0,
+            status_t    set(audio_source_t inputSource = AUDIO_SOURCE_DEFAULT,
                             uint32_t sampleRate = 0,
                             audio_format_t format = AUDIO_FORMAT_DEFAULT,
                             uint32_t channelMask = AUDIO_CHANNEL_IN_MONO,
@@ -208,7 +208,7 @@
             int         channels() const;
             uint32_t    frameCount() const;
             size_t      frameSize() const;
-            int         inputSource() const;
+            audio_source_t inputSource() const;
 
 
     /* After it's created the track is not active. Call start() to
@@ -367,8 +367,7 @@
     audio_track_cblk_t*     mCblk;
     audio_format_t          mFormat;
     uint8_t                 mChannelCount;
-    uint8_t                 mInputSource;
-    uint8_t                 mReserved[2];
+    audio_source_t          mInputSource;
     status_t                mStatus;
     uint32_t                mLatency;
 
diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
index c6368fb..74a1e62 100644
--- a/include/media/AudioSystem.h
+++ b/include/media/AudioSystem.h
@@ -163,7 +163,7 @@
                                audio_stream_type_t stream,
                                int session = 0);
     static void releaseOutput(audio_io_handle_t output);
-    static audio_io_handle_t getInput(int inputSource,
+    static audio_io_handle_t getInput(audio_source_t inputSource,
                                     uint32_t samplingRate = 0,
                                     audio_format_t format = AUDIO_FORMAT_DEFAULT,
                                     uint32_t channels = AUDIO_CHANNEL_IN_MONO,
@@ -248,7 +248,7 @@
     static sp<IAudioPolicyService> gAudioPolicyService;
 
     // mapping between stream types and outputs
-    static DefaultKeyedVector<int, audio_io_handle_t> gStreamOutputMap;
+    static DefaultKeyedVector<audio_stream_type_t, audio_io_handle_t> gStreamOutputMap;
     // list of output descriptors containing cached parameters
     // (sampling rate, framecount, channel count...)
     static DefaultKeyedVector<audio_io_handle_t, OutputDescriptor *> gOutputs;
diff --git a/include/media/IAudioPolicyService.h b/include/media/IAudioPolicyService.h
index 07d17c5..4d88297 100644
--- a/include/media/IAudioPolicyService.h
+++ b/include/media/IAudioPolicyService.h
@@ -60,7 +60,7 @@
                                 audio_stream_type_t stream,
                                 int session = 0) = 0;
     virtual void releaseOutput(audio_io_handle_t output) = 0;
-    virtual audio_io_handle_t getInput(int inputSource,
+    virtual audio_io_handle_t getInput(audio_source_t inputSource,
                                     uint32_t samplingRate = 0,
                                     audio_format_t format = AUDIO_FORMAT_DEFAULT,
                                     uint32_t channels = 0,
diff --git a/include/media/IOMX.h b/include/media/IOMX.h
index c4cc947..a295e9a 100644
--- a/include/media/IOMX.h
+++ b/include/media/IOMX.h
@@ -42,10 +42,10 @@
     typedef void *buffer_id;
     typedef void *node_id;
 
-    // Given the calling process' pid, returns true iff
+    // Given a node_id and the calling process' pid, returns true iff
     // the implementation of the OMX interface lives in the same
     // process.
-    virtual bool livesLocally(pid_t pid) = 0;
+    virtual bool livesLocally(node_id node, pid_t pid) = 0;
 
     struct ComponentInfo {
         String8 mName;
diff --git a/include/media/stagefright/AudioSource.h b/include/media/stagefright/AudioSource.h
index 19bd31b..2427e2f 100644
--- a/include/media/stagefright/AudioSource.h
+++ b/include/media/stagefright/AudioSource.h
@@ -34,7 +34,7 @@
     // Note that the "channels" parameter is _not_ the number of channels,
     // but a bitmask of audio_channels_t constants.
     AudioSource(
-            int inputSource, uint32_t sampleRate,
+            audio_source_t inputSource, uint32_t sampleRate,
             uint32_t channels = AUDIO_CHANNEL_IN_MONO);
 
     status_t initCheck() const;
diff --git a/include/media/stagefright/OMXCodec.h b/include/media/stagefright/OMXCodec.h
index 84f8282..4c30e04 100644
--- a/include/media/stagefright/OMXCodec.h
+++ b/include/media/stagefright/OMXCodec.h
@@ -172,6 +172,7 @@
     uint32_t mFlags;
 
     bool mIsEncoder;
+    bool mIsVideo;
     char *mMIME;
     char *mComponentName;
     sp<MetaData> mOutputFormat;
diff --git a/include/private/media/AudioTrackShared.h b/include/private/media/AudioTrackShared.h
index ffc546e..dd97ce4 100644
--- a/include/private/media/AudioTrackShared.h
+++ b/include/private/media/AudioTrackShared.h
@@ -76,7 +76,9 @@
                 // Left channel is in [0:15], right channel is in [16:31].
                 // Always read and write the combined pair atomically.
                 // For AudioTrack only, not used by AudioRecord.
-                uint32_t    volumeLR;
+private:
+                uint32_t    mVolumeLR;
+public:
 
                 uint32_t    sampleRate;
                 // NOTE: audio_track_cblk_t::frameSize is not equal to AudioTrack::frameSize() for
@@ -116,6 +118,17 @@
                 uint16_t    getSendLevel_U4_12() const {
                     return mSendLevel;
                 }
+
+                // for AudioTrack client only, caller must limit to 0 <= volumeLR <= 0x10001000
+                void        setVolumeLR(uint32_t volumeLR) {
+                    mVolumeLR = volumeLR;
+                }
+
+                // for AudioFlinger only; the return value must be validated by the caller
+                uint32_t    getVolumeLR() const {
+                    return mVolumeLR;
+                }
+
 };
 
 
diff --git a/media/libeffects/preprocessing/Android.mk b/media/libeffects/preprocessing/Android.mk
index 77d40b6..7f7c7e1 100755
--- a/media/libeffects/preprocessing/Android.mk
+++ b/media/libeffects/preprocessing/Android.mk
@@ -13,7 +13,7 @@
 LOCAL_C_INCLUDES += \
     external/webrtc/src \
     external/webrtc/src/modules/interface \
-    external/webrtc/src/modules/audio_processing/main/interface \
+    external/webrtc/src/modules/audio_processing/interface \
     system/media/audio_effects/include
 
 LOCAL_C_INCLUDES += $(call include-path-for, speex)
diff --git a/media/libeffects/preprocessing/PreProcessing.cpp b/media/libeffects/preprocessing/PreProcessing.cpp
index e988e06..9fd6764 100755
--- a/media/libeffects/preprocessing/PreProcessing.cpp
+++ b/media/libeffects/preprocessing/PreProcessing.cpp
@@ -24,8 +24,8 @@
 #include <audio_effects/effect_aec.h>
 #include <audio_effects/effect_agc.h>
 #include <audio_effects/effect_ns.h>
-#include "modules/interface/module_common_types.h"
-#include "modules/audio_processing/main/interface/audio_processing.h"
+#include <module_common_types.h>
+#include <audio_processing.h>
 #include "speex/speex_resampler.h"
 
 
@@ -220,8 +220,8 @@
 // Automatic Gain Control (AGC)
 //------------------------------------------------------------------------------
 
-static const int kAgcDefaultTargetLevel = 0;
-static const int kAgcDefaultCompGain = 90;
+static const int kAgcDefaultTargetLevel = 3;
+static const int kAgcDefaultCompGain = 9;
 static const bool kAgcDefaultLimiter = true;
 
 int  AgcInit (preproc_effect_t *effect)
diff --git a/media/libmedia/AudioRecord.cpp b/media/libmedia/AudioRecord.cpp
index 5b5b076..2b3ea38 100644
--- a/media/libmedia/AudioRecord.cpp
+++ b/media/libmedia/AudioRecord.cpp
@@ -84,7 +84,7 @@
 }
 
 AudioRecord::AudioRecord(
-        int inputSource,
+        audio_source_t inputSource,
         uint32_t sampleRate,
         audio_format_t format,
         uint32_t channelMask,
@@ -119,7 +119,7 @@
 }
 
 status_t AudioRecord::set(
-        int inputSource,
+        audio_source_t inputSource,
         uint32_t sampleRate,
         audio_format_t format,
         uint32_t channelMask,
@@ -228,7 +228,7 @@
     mMarkerReached = false;
     mNewPosition = 0;
     mUpdatePeriod = 0;
-    mInputSource = (uint8_t)inputSource;
+    mInputSource = inputSource;
     mFlags = flags;
     mInput = input;
     AudioSystem::acquireAudioSessionId(mSessionId);
@@ -272,9 +272,9 @@
     }
 }
 
-int AudioRecord::inputSource() const
+audio_source_t AudioRecord::inputSource() const
 {
-    return (int)mInputSource;
+    return mInputSource;
 }
 
 // -------------------------------------------------------------------------
diff --git a/media/libmedia/AudioSystem.cpp b/media/libmedia/AudioSystem.cpp
index 952d634..df5017b 100644
--- a/media/libmedia/AudioSystem.cpp
+++ b/media/libmedia/AudioSystem.cpp
@@ -35,7 +35,8 @@
 sp<AudioSystem::AudioFlingerClient> AudioSystem::gAudioFlingerClient;
 audio_error_callback AudioSystem::gAudioErrorCallback = NULL;
 // Cached values
-DefaultKeyedVector<int, audio_io_handle_t> AudioSystem::gStreamOutputMap(0);
+
+DefaultKeyedVector<audio_stream_type_t, audio_io_handle_t> AudioSystem::gStreamOutputMap(0);
 DefaultKeyedVector<audio_io_handle_t, AudioSystem::OutputDescriptor *> AudioSystem::gOutputs(0);
 
 // Cached values for recording queries, all protected by gLock
@@ -404,7 +405,7 @@
 void AudioSystem::AudioFlingerClient::ioConfigChanged(int event, int ioHandle, void *param2) {
     ALOGV("ioConfigChanged() event %d", event);
     OutputDescriptor *desc;
-    uint32_t stream;
+    audio_stream_type_t stream;
 
     if (ioHandle == 0) return;
 
@@ -413,7 +414,7 @@
     switch (event) {
     case STREAM_CONFIG_CHANGED:
         if (param2 == 0) break;
-        stream = *(uint32_t *)param2;
+        stream = *(audio_stream_type_t *)param2;
         ALOGV("ioConfigChanged() STREAM_CONFIG_CHANGED stream %d, output %d", stream, ioHandle);
         if (gStreamOutputMap.indexOfKey(stream) >= 0) {
             gStreamOutputMap.replaceValueFor(stream, ioHandle);
@@ -630,7 +631,7 @@
     aps->releaseOutput(output);
 }
 
-audio_io_handle_t AudioSystem::getInput(int inputSource,
+audio_io_handle_t AudioSystem::getInput(audio_source_t inputSource,
                                     uint32_t samplingRate,
                                     audio_format_t format,
                                     uint32_t channels,
diff --git a/media/libmedia/AudioTrack.cpp b/media/libmedia/AudioTrack.cpp
index 17e3d4b..90a67db 100644
--- a/media/libmedia/AudioTrack.cpp
+++ b/media/libmedia/AudioTrack.cpp
@@ -501,7 +501,7 @@
     mVolume[LEFT] = left;
     mVolume[RIGHT] = right;
 
-    mCblk->volumeLR = (uint32_t(uint16_t(right * 0x1000)) << 16) | uint16_t(left * 0x1000);
+    mCblk->setVolumeLR((uint32_t(uint16_t(right * 0x1000)) << 16) | uint16_t(left * 0x1000));
 
     return NO_ERROR;
 }
@@ -837,7 +837,7 @@
         mCblk->stepUser(mCblk->frameCount);
     }
 
-    mCblk->volumeLR = (uint32_t(uint16_t(mVolume[RIGHT] * 0x1000)) << 16) | uint16_t(mVolume[LEFT] * 0x1000);
+    mCblk->setVolumeLR((uint32_t(uint16_t(mVolume[RIGHT] * 0x1000)) << 16) | uint16_t(mVolume[LEFT] * 0x1000));
     mCblk->setSendLevel(mSendLevel);
     mAudioTrack->attachAuxEffect(mAuxEffectId);
     mCblk->bufferTimeoutMs = MAX_STARTUP_TIMEOUT_MS;
@@ -1320,7 +1320,7 @@
 audio_track_cblk_t::audio_track_cblk_t()
     : lock(Mutex::SHARED), cv(Condition::SHARED), user(0), server(0),
     userBase(0), serverBase(0), buffers(0), frameCount(0),
-    loopStart(UINT_MAX), loopEnd(UINT_MAX), loopCount(0), volumeLR(0),
+    loopStart(UINT_MAX), loopEnd(UINT_MAX), loopCount(0), mVolumeLR(0x10001000),
     mSendLevel(0), flags(0)
 {
 }
diff --git a/media/libmedia/IAudioPolicyService.cpp b/media/libmedia/IAudioPolicyService.cpp
index b5c857f..99385aa 100644
--- a/media/libmedia/IAudioPolicyService.cpp
+++ b/media/libmedia/IAudioPolicyService.cpp
@@ -172,7 +172,7 @@
     }
 
     virtual audio_io_handle_t getInput(
-                                    int inputSource,
+                                    audio_source_t inputSource,
                                     uint32_t samplingRate,
                                     audio_format_t format,
                                     uint32_t channels,
@@ -181,7 +181,7 @@
     {
         Parcel data, reply;
         data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
-        data.writeInt32(inputSource);
+        data.writeInt32((int32_t) inputSource);
         data.writeInt32(samplingRate);
         data.writeInt32(static_cast <uint32_t>(format));
         data.writeInt32(channels);
@@ -461,7 +461,7 @@
 
         case GET_INPUT: {
             CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            int inputSource = data.readInt32();
+            audio_source_t inputSource = (audio_source_t) data.readInt32();
             uint32_t samplingRate = data.readInt32();
             audio_format_t format = (audio_format_t) data.readInt32();
             uint32_t channels = data.readInt32();
diff --git a/media/libmedia/IOMX.cpp b/media/libmedia/IOMX.cpp
index d2f5f71..27c7e03 100644
--- a/media/libmedia/IOMX.cpp
+++ b/media/libmedia/IOMX.cpp
@@ -59,9 +59,10 @@
         : BpInterface<IOMX>(impl) {
     }
 
-    virtual bool livesLocally(pid_t pid) {
+    virtual bool livesLocally(node_id node, pid_t pid) {
         Parcel data, reply;
         data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
+        data.writeIntPtr((intptr_t)node);
         data.writeInt32(pid);
         remote()->transact(LIVES_LOCALLY, data, &reply);
 
@@ -417,7 +418,9 @@
         case LIVES_LOCALLY:
         {
             CHECK_INTERFACE(IOMX, data, reply);
-            reply->writeInt32(livesLocally((pid_t)data.readInt32()));
+            node_id node = (void *)data.readIntPtr();
+            pid_t pid = (pid_t)data.readInt32();
+            reply->writeInt32(livesLocally(node, pid));
 
             return OK;
         }
diff --git a/media/libstagefright/Android.mk b/media/libstagefright/Android.mk
index 0aeb515..03e8a06 100644
--- a/media/libstagefright/Android.mk
+++ b/media/libstagefright/Android.mk
@@ -74,12 +74,10 @@
         libcrypto        \
         libssl           \
         libgui           \
+        libstagefright_omx \
 
 LOCAL_STATIC_LIBRARIES := \
         libstagefright_color_conversion \
-        libstagefright_aacenc \
-        libstagefright_amrnbenc \
-        libstagefright_amrwbenc \
         libstagefright_avcenc \
         libstagefright_m4vh263enc \
         libstagefright_matroska \
@@ -141,7 +139,6 @@
 ################################################################################
 
 LOCAL_SHARED_LIBRARIES += \
-        libstagefright_amrnb_common \
         libstagefright_enc_common \
         libstagefright_avc_common \
         libstagefright_foundation \
diff --git a/media/libstagefright/AudioSource.cpp b/media/libstagefright/AudioSource.cpp
index 2172cc0..8bdb7c5 100644
--- a/media/libstagefright/AudioSource.cpp
+++ b/media/libstagefright/AudioSource.cpp
@@ -47,7 +47,7 @@
 }
 
 AudioSource::AudioSource(
-        int inputSource, uint32_t sampleRate, uint32_t channels)
+        audio_source_t inputSource, uint32_t sampleRate, uint32_t channels)
     : mStarted(false),
       mSampleRate(sampleRate),
       mPrevSampleTimeUs(0),
diff --git a/media/libstagefright/AwesomePlayer.cpp b/media/libstagefright/AwesomePlayer.cpp
index 8480b6d..8073af8 100644
--- a/media/libstagefright/AwesomePlayer.cpp
+++ b/media/libstagefright/AwesomePlayer.cpp
@@ -30,7 +30,7 @@
 #include "include/MPEG2TSExtractor.h"
 #include "include/WVMExtractor.h"
 
-#include "timedtext/TimedTextPlayer.h"
+#include "timedtext/TimedTextDriver.h"
 
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
@@ -192,7 +192,7 @@
       mVideoBuffer(NULL),
       mDecryptHandle(NULL),
       mLastVideoTimeUs(-1),
-      mTextPlayer(NULL) {
+      mTextDriver(NULL) {
     CHECK_EQ(mClient.connect(), (status_t)OK);
 
     DataSource::RegisterDefaultSniffers();
@@ -530,9 +530,9 @@
     delete mAudioPlayer;
     mAudioPlayer = NULL;
 
-    if (mTextPlayer != NULL) {
-        delete mTextPlayer;
-        mTextPlayer = NULL;
+    if (mTextDriver != NULL) {
+        delete mTextDriver;
+        mTextDriver = NULL;
     }
 
     mVideoRenderer.clear();
@@ -1118,7 +1118,7 @@
     }
 
     if (mFlags & TEXTPLAYER_STARTED) {
-        mTextPlayer->pause();
+        mTextDriver->pause();
         modifyFlags(TEXT_RUNNING, CLEAR);
     }
 
@@ -1272,9 +1272,9 @@
 }
 
 status_t AwesomePlayer::setTimedTextTrackIndex(int32_t index) {
-    if (mTextPlayer != NULL) {
+    if (mTextDriver != NULL) {
         if (index >= 0) { // to turn on a text track
-            status_t err = mTextPlayer->setTimedTextTrackIndex(index);
+            status_t err = mTextDriver->setTimedTextTrackIndex(index);
             if (err != OK) {
                 return err;
             }
@@ -1290,7 +1290,7 @@
                 modifyFlags(TEXTPLAYER_STARTED, CLEAR);
             }
 
-            return mTextPlayer->setTimedTextTrackIndex(index);
+            return mTextDriver->setTimedTextTrackIndex(index);
         }
     } else {
         return INVALID_OPERATION;
@@ -1319,7 +1319,7 @@
     seekAudioIfNecessary_l();
 
     if (mFlags & TEXTPLAYER_STARTED) {
-        mTextPlayer->seekTo(mSeekTimeUs);
+        mTextDriver->seekToAsync(mSeekTimeUs);
     }
 
     if (!(mFlags & PLAYING)) {
@@ -1364,11 +1364,11 @@
     Mutex::Autolock autoLock(mTimedTextLock);
     CHECK(source != NULL);
 
-    if (mTextPlayer == NULL) {
-        mTextPlayer = new TimedTextPlayer(this, mListener, &mQueue);
+    if (mTextDriver == NULL) {
+        mTextDriver = new TimedTextDriver(mListener);
     }
 
-    mTextPlayer->addTextSource(source);
+    mTextDriver->addInBandTextSource(source);
 }
 
 status_t AwesomePlayer::initAudioDecoder() {
@@ -1695,7 +1695,7 @@
     }
 
     if ((mFlags & TEXTPLAYER_STARTED) && !(mFlags & (TEXT_RUNNING | SEEK_PREVIEW))) {
-        mTextPlayer->resume();
+        mTextDriver->resume();
         modifyFlags(TEXT_RUNNING, SET);
     }
 
@@ -2241,11 +2241,11 @@
         case KEY_PARAMETER_TIMED_TEXT_ADD_OUT_OF_BAND_SOURCE:
         {
             Mutex::Autolock autoLock(mTimedTextLock);
-            if (mTextPlayer == NULL) {
-                mTextPlayer = new TimedTextPlayer(this, mListener, &mQueue);
+            if (mTextDriver == NULL) {
+                mTextDriver = new TimedTextDriver(mListener);
             }
 
-            return mTextPlayer->setParameter(key, request);
+            return mTextDriver->addOutOfBandTextSource(request);
         }
         case KEY_PARAMETER_CACHE_STAT_COLLECT_FREQ_MS:
         {
diff --git a/media/libstagefright/MPEG4Extractor.cpp b/media/libstagefright/MPEG4Extractor.cpp
index bc88015..6c95d4e 100644
--- a/media/libstagefright/MPEG4Extractor.cpp
+++ b/media/libstagefright/MPEG4Extractor.cpp
@@ -20,7 +20,6 @@
 #include "include/MPEG4Extractor.h"
 #include "include/SampleTable.h"
 #include "include/ESDS.h"
-#include "timedtext/TimedTextPlayer.h"
 
 #include <arpa/inet.h>
 
@@ -2430,4 +2429,3 @@
 }
 
 }  // namespace android
-
diff --git a/media/libstagefright/OMXClient.cpp b/media/libstagefright/OMXClient.cpp
index 9de873e..7a805aa 100644
--- a/media/libstagefright/OMXClient.cpp
+++ b/media/libstagefright/OMXClient.cpp
@@ -20,11 +20,299 @@
 
 #include <binder/IServiceManager.h>
 #include <media/IMediaPlayerService.h>
-#include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/OMXClient.h>
+#include <utils/KeyedVector.h>
+
+#include "include/OMX.h"
 
 namespace android {
 
+struct MuxOMX : public IOMX {
+    MuxOMX(const sp<IOMX> &remoteOMX);
+    virtual ~MuxOMX();
+
+    virtual IBinder *onAsBinder() { return NULL; }
+
+    virtual bool livesLocally(node_id node, pid_t pid);
+
+    virtual status_t listNodes(List<ComponentInfo> *list);
+
+    virtual status_t allocateNode(
+            const char *name, const sp<IOMXObserver> &observer,
+            node_id *node);
+
+    virtual status_t freeNode(node_id node);
+
+    virtual status_t sendCommand(
+            node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param);
+
+    virtual status_t getParameter(
+            node_id node, OMX_INDEXTYPE index,
+            void *params, size_t size);
+
+    virtual status_t setParameter(
+            node_id node, OMX_INDEXTYPE index,
+            const void *params, size_t size);
+
+    virtual status_t getConfig(
+            node_id node, OMX_INDEXTYPE index,
+            void *params, size_t size);
+
+    virtual status_t setConfig(
+            node_id node, OMX_INDEXTYPE index,
+            const void *params, size_t size);
+
+    virtual status_t getState(
+            node_id node, OMX_STATETYPE* state);
+
+    virtual status_t storeMetaDataInBuffers(
+            node_id node, OMX_U32 port_index, OMX_BOOL enable);
+
+    virtual status_t enableGraphicBuffers(
+            node_id node, OMX_U32 port_index, OMX_BOOL enable);
+
+    virtual status_t getGraphicBufferUsage(
+            node_id node, OMX_U32 port_index, OMX_U32* usage);
+
+    virtual status_t useBuffer(
+            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
+            buffer_id *buffer);
+
+    virtual status_t useGraphicBuffer(
+            node_id node, OMX_U32 port_index,
+            const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer);
+
+    virtual status_t allocateBuffer(
+            node_id node, OMX_U32 port_index, size_t size,
+            buffer_id *buffer, void **buffer_data);
+
+    virtual status_t allocateBufferWithBackup(
+            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
+            buffer_id *buffer);
+
+    virtual status_t freeBuffer(
+            node_id node, OMX_U32 port_index, buffer_id buffer);
+
+    virtual status_t fillBuffer(node_id node, buffer_id buffer);
+
+    virtual status_t emptyBuffer(
+            node_id node,
+            buffer_id buffer,
+            OMX_U32 range_offset, OMX_U32 range_length,
+            OMX_U32 flags, OMX_TICKS timestamp);
+
+    virtual status_t getExtensionIndex(
+            node_id node,
+            const char *parameter_name,
+            OMX_INDEXTYPE *index);
+
+private:
+    mutable Mutex mLock;
+
+    sp<IOMX> mRemoteOMX;
+    sp<IOMX> mLocalOMX;
+
+    KeyedVector<node_id, bool> mIsLocalNode;
+
+    bool isLocalNode(node_id node) const;
+    bool isLocalNode_l(node_id node) const;
+    const sp<IOMX> &getOMX(node_id node) const;
+    const sp<IOMX> &getOMX_l(node_id node) const;
+
+    static bool IsSoftwareComponent(const char *name);
+
+    DISALLOW_EVIL_CONSTRUCTORS(MuxOMX);
+};
+
+MuxOMX::MuxOMX(const sp<IOMX> &remoteOMX)
+    : mRemoteOMX(remoteOMX) {
+}
+
+MuxOMX::~MuxOMX() {
+}
+
+bool MuxOMX::isLocalNode(node_id node) const {
+    Mutex::Autolock autoLock(mLock);
+
+    return isLocalNode_l(node);
+}
+
+bool MuxOMX::isLocalNode_l(node_id node) const {
+    return mIsLocalNode.indexOfKey(node) >= 0;
+}
+
+// static
+bool MuxOMX::IsSoftwareComponent(const char *name) {
+    return !strncasecmp(name, "OMX.google.", 11);
+}
+
+const sp<IOMX> &MuxOMX::getOMX(node_id node) const {
+    return isLocalNode(node) ? mLocalOMX : mRemoteOMX;
+}
+
+const sp<IOMX> &MuxOMX::getOMX_l(node_id node) const {
+    return isLocalNode_l(node) ? mLocalOMX : mRemoteOMX;
+}
+
+bool MuxOMX::livesLocally(node_id node, pid_t pid) {
+    return getOMX(node)->livesLocally(node, pid);
+}
+
+status_t MuxOMX::listNodes(List<ComponentInfo> *list) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mLocalOMX == NULL) {
+        mLocalOMX = new OMX;
+    }
+
+    return mLocalOMX->listNodes(list);
+}
+
+status_t MuxOMX::allocateNode(
+        const char *name, const sp<IOMXObserver> &observer,
+        node_id *node) {
+    Mutex::Autolock autoLock(mLock);
+
+    sp<IOMX> omx;
+
+    if (IsSoftwareComponent(name)) {
+        if (mLocalOMX == NULL) {
+            mLocalOMX = new OMX;
+        }
+        omx = mLocalOMX;
+    } else {
+        omx = mRemoteOMX;
+    }
+
+    status_t err = omx->allocateNode(name, observer, node);
+
+    if (err != OK) {
+        return err;
+    }
+
+    if (omx == mLocalOMX) {
+        mIsLocalNode.add(*node, true);
+    }
+
+    return OK;
+}
+
+status_t MuxOMX::freeNode(node_id node) {
+    Mutex::Autolock autoLock(mLock);
+
+    status_t err = getOMX_l(node)->freeNode(node);
+
+    if (err != OK) {
+        return err;
+    }
+
+    mIsLocalNode.removeItem(node);
+
+    return OK;
+}
+
+status_t MuxOMX::sendCommand(
+        node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param) {
+    return getOMX(node)->sendCommand(node, cmd, param);
+}
+
+status_t MuxOMX::getParameter(
+        node_id node, OMX_INDEXTYPE index,
+        void *params, size_t size) {
+    return getOMX(node)->getParameter(node, index, params, size);
+}
+
+status_t MuxOMX::setParameter(
+        node_id node, OMX_INDEXTYPE index,
+        const void *params, size_t size) {
+    return getOMX(node)->setParameter(node, index, params, size);
+}
+
+status_t MuxOMX::getConfig(
+        node_id node, OMX_INDEXTYPE index,
+        void *params, size_t size) {
+    return getOMX(node)->getConfig(node, index, params, size);
+}
+
+status_t MuxOMX::setConfig(
+        node_id node, OMX_INDEXTYPE index,
+        const void *params, size_t size) {
+    return getOMX(node)->setConfig(node, index, params, size);
+}
+
+status_t MuxOMX::getState(
+        node_id node, OMX_STATETYPE* state) {
+    return getOMX(node)->getState(node, state);
+}
+
+status_t MuxOMX::storeMetaDataInBuffers(
+        node_id node, OMX_U32 port_index, OMX_BOOL enable) {
+    return getOMX(node)->storeMetaDataInBuffers(node, port_index, enable);
+}
+
+status_t MuxOMX::enableGraphicBuffers(
+        node_id node, OMX_U32 port_index, OMX_BOOL enable) {
+    return getOMX(node)->enableGraphicBuffers(node, port_index, enable);
+}
+
+status_t MuxOMX::getGraphicBufferUsage(
+        node_id node, OMX_U32 port_index, OMX_U32* usage) {
+    return getOMX(node)->getGraphicBufferUsage(node, port_index, usage);
+}
+
+status_t MuxOMX::useBuffer(
+        node_id node, OMX_U32 port_index, const sp<IMemory> &params,
+        buffer_id *buffer) {
+    return getOMX(node)->useBuffer(node, port_index, params, buffer);
+}
+
+status_t MuxOMX::useGraphicBuffer(
+        node_id node, OMX_U32 port_index,
+        const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer) {
+    return getOMX(node)->useGraphicBuffer(
+            node, port_index, graphicBuffer, buffer);
+}
+
+status_t MuxOMX::allocateBuffer(
+        node_id node, OMX_U32 port_index, size_t size,
+        buffer_id *buffer, void **buffer_data) {
+    return getOMX(node)->allocateBuffer(
+            node, port_index, size, buffer, buffer_data);
+}
+
+status_t MuxOMX::allocateBufferWithBackup(
+        node_id node, OMX_U32 port_index, const sp<IMemory> &params,
+        buffer_id *buffer) {
+    return getOMX(node)->allocateBufferWithBackup(
+            node, port_index, params, buffer);
+}
+
+status_t MuxOMX::freeBuffer(
+        node_id node, OMX_U32 port_index, buffer_id buffer) {
+    return getOMX(node)->freeBuffer(node, port_index, buffer);
+}
+
+status_t MuxOMX::fillBuffer(node_id node, buffer_id buffer) {
+    return getOMX(node)->fillBuffer(node, buffer);
+}
+
+status_t MuxOMX::emptyBuffer(
+        node_id node,
+        buffer_id buffer,
+        OMX_U32 range_offset, OMX_U32 range_length,
+        OMX_U32 flags, OMX_TICKS timestamp) {
+    return getOMX(node)->emptyBuffer(
+            node, buffer, range_offset, range_length, flags, timestamp);
+}
+
+status_t MuxOMX::getExtensionIndex(
+        node_id node,
+        const char *parameter_name,
+        OMX_INDEXTYPE *index) {
+    return getOMX(node)->getExtensionIndex(node, parameter_name, index);
+}
+
 OMXClient::OMXClient() {
 }
 
@@ -38,6 +326,11 @@
     mOMX = service->getOMX();
     CHECK(mOMX.get() != NULL);
 
+    if (!mOMX->livesLocally(NULL /* node */, getpid())) {
+        ALOGI("Using client-side OMX mux.");
+        mOMX = new MuxOMX(mOMX);
+    }
+
     return OK;
 }
 
diff --git a/media/libstagefright/OMXCodec.cpp b/media/libstagefright/OMXCodec.cpp
index 60d9bb7..af4aa79 100755
--- a/media/libstagefright/OMXCodec.cpp
+++ b/media/libstagefright/OMXCodec.cpp
@@ -18,9 +18,6 @@
 #define LOG_TAG "OMXCodec"
 #include <utils/Log.h>
 
-#include "include/AACEncoder.h"
-#include "include/AMRNBEncoder.h"
-#include "include/AMRWBEncoder.h"
 #include "include/AVCEncoder.h"
 #include "include/M4vH263Encoder.h"
 
@@ -71,9 +68,6 @@
 
 #define FACTORY_REF(name) { #name, Make##name },
 
-FACTORY_CREATE_ENCODER(AMRNBEncoder)
-FACTORY_CREATE_ENCODER(AMRWBEncoder)
-FACTORY_CREATE_ENCODER(AACEncoder)
 FACTORY_CREATE_ENCODER(AVCEncoder)
 FACTORY_CREATE_ENCODER(M4vH263Encoder)
 
@@ -86,9 +80,6 @@
     };
 
     static const FactoryInfo kFactoryInfo[] = {
-        FACTORY_REF(AMRNBEncoder)
-        FACTORY_REF(AMRWBEncoder)
-        FACTORY_REF(AACEncoder)
         FACTORY_REF(AVCEncoder)
         FACTORY_REF(M4vH263Encoder)
     };
@@ -149,11 +140,11 @@
 
 static const CodecInfo kEncoderInfo[] = {
     { MEDIA_MIMETYPE_AUDIO_AMR_NB, "OMX.TI.AMR.encode" },
-    { MEDIA_MIMETYPE_AUDIO_AMR_NB, "AMRNBEncoder" },
+    { MEDIA_MIMETYPE_AUDIO_AMR_NB, "OMX.google.amrnb.encoder" },
     { MEDIA_MIMETYPE_AUDIO_AMR_WB, "OMX.TI.WBAMR.encode" },
-    { MEDIA_MIMETYPE_AUDIO_AMR_WB, "AMRWBEncoder" },
+    { MEDIA_MIMETYPE_AUDIO_AMR_WB, "OMX.google.amrwb.encoder" },
     { MEDIA_MIMETYPE_AUDIO_AAC, "OMX.TI.AAC.encode" },
-    { MEDIA_MIMETYPE_AUDIO_AAC, "AACEncoder" },
+    { MEDIA_MIMETYPE_AUDIO_AAC, "OMX.google.aac.encoder" },
     { MEDIA_MIMETYPE_VIDEO_MPEG4, "OMX.TI.DUCATI1.VIDEO.MPEG4E" },
     { MEDIA_MIMETYPE_VIDEO_MPEG4, "OMX.qcom.7x30.video.encoder.mpeg4" },
     { MEDIA_MIMETYPE_VIDEO_MPEG4, "OMX.qcom.video.encoder.mpeg4" },
@@ -1482,11 +1473,12 @@
         const sp<MediaSource> &source,
         const sp<ANativeWindow> &nativeWindow)
     : mOMX(omx),
-      mOMXLivesLocally(omx->livesLocally(getpid())),
+      mOMXLivesLocally(omx->livesLocally(node, getpid())),
       mNode(node),
       mQuirks(quirks),
       mFlags(flags),
       mIsEncoder(isEncoder),
+      mIsVideo(!strncasecmp("video/", mime, 6)),
       mMIME(strdup(mime)),
       mComponentName(strdup(componentName)),
       mSource(source),
@@ -2192,7 +2184,7 @@
 }
 
 int64_t OMXCodec::retrieveDecodingTimeUs(bool isCodecSpecific) {
-    CHECK(mIsEncoder);
+    CHECK(mIsEncoder && mIsVideo);
 
     if (mDecodingTimeList.empty()) {
         CHECK(mSignalledEOS || mNoMoreOutputData);
@@ -2387,7 +2379,7 @@
                     mNoMoreOutputData = true;
                 }
 
-                if (mIsEncoder) {
+                if (mIsEncoder && mIsVideo) {
                     int64_t decodingTimeUs = retrieveDecodingTimeUs(isCodecSpecific);
                     buffer->meta_data()->setInt64(kKeyDecodingTime, decodingTimeUs);
                 }
@@ -3249,7 +3241,7 @@
         int64_t lastBufferTimeUs;
         CHECK(srcBuffer->meta_data()->findInt64(kKeyTime, &lastBufferTimeUs));
         CHECK(lastBufferTimeUs >= 0);
-        if (mIsEncoder) {
+        if (mIsEncoder && mIsVideo) {
             mDecodingTimeList.push_back(lastBufferTimeUs);
         }
 
diff --git a/media/libstagefright/codecs/aacdec/SoftAAC.cpp b/media/libstagefright/codecs/aacdec/SoftAAC.cpp
index da9d280..ea6c360 100644
--- a/media/libstagefright/codecs/aacdec/SoftAAC.cpp
+++ b/media/libstagefright/codecs/aacdec/SoftAAC.cpp
@@ -218,6 +218,18 @@
             return OMX_ErrorNone;
         }
 
+        case OMX_IndexParamAudioPcm:
+        {
+            const OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams =
+                (OMX_AUDIO_PARAM_PCMMODETYPE *)params;
+
+            if (pcmParams->nPortIndex != 1) {
+                return OMX_ErrorUndefined;
+            }
+
+            return OMX_ErrorNone;
+        }
+
         default:
             return SimpleSoftOMXComponent::internalSetParameter(index, params);
     }
diff --git a/media/libstagefright/codecs/aacenc/Android.mk b/media/libstagefright/codecs/aacenc/Android.mk
index 8318ba4..34a2796 100644
--- a/media/libstagefright/codecs/aacenc/Android.mk
+++ b/media/libstagefright/codecs/aacenc/Android.mk
@@ -85,3 +85,29 @@
 endif
 
 include $(BUILD_STATIC_LIBRARY)
+
+################################################################################
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+        SoftAACEncoder.cpp
+
+LOCAL_C_INCLUDES := \
+        frameworks/base/media/libstagefright/include \
+        frameworks/base/include/media/stagefright/openmax \
+	frameworks/base/media/libstagefright/codecs/common/include \
+
+LOCAL_CFLAGS := -DOSCL_IMPORT_REF=
+
+LOCAL_STATIC_LIBRARIES := \
+        libstagefright_aacenc
+
+LOCAL_SHARED_LIBRARIES := \
+        libstagefright_omx libstagefright_foundation libutils \
+        libstagefright_enc_common
+
+LOCAL_MODULE := libstagefright_soft_aacenc
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/codecs/aacenc/SoftAACEncoder.cpp b/media/libstagefright/codecs/aacenc/SoftAACEncoder.cpp
new file mode 100644
index 0000000..c6724c2
--- /dev/null
+++ b/media/libstagefright/codecs/aacenc/SoftAACEncoder.cpp
@@ -0,0 +1,560 @@
+/*
+ * Copyright (C) 2012 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 "SoftAACEncoder"
+#include <utils/Log.h>
+
+#include "SoftAACEncoder.h"
+
+#include "voAAC.h"
+#include "cmnMemory.h"
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/hexdump.h>
+
+namespace android {
+
+template<class T>
+static void InitOMXParams(T *params) {
+    params->nSize = sizeof(T);
+    params->nVersion.s.nVersionMajor = 1;
+    params->nVersion.s.nVersionMinor = 0;
+    params->nVersion.s.nRevision = 0;
+    params->nVersion.s.nStep = 0;
+}
+
+SoftAACEncoder::SoftAACEncoder(
+        const char *name,
+        const OMX_CALLBACKTYPE *callbacks,
+        OMX_PTR appData,
+        OMX_COMPONENTTYPE **component)
+    : SimpleSoftOMXComponent(name, callbacks, appData, component),
+      mEncoderHandle(NULL),
+      mApiHandle(NULL),
+      mMemOperator(NULL),
+      mNumChannels(1),
+      mSampleRate(44100),
+      mBitRate(0),
+      mSentCodecSpecificData(false),
+      mInputSize(0),
+      mInputFrame(NULL),
+      mInputTimeUs(-1ll),
+      mSawInputEOS(false),
+      mSignalledError(false) {
+    initPorts();
+    CHECK_EQ(initEncoder(), (status_t)OK);
+
+    setAudioParams();
+}
+
+SoftAACEncoder::~SoftAACEncoder() {
+    delete[] mInputFrame;
+    mInputFrame = NULL;
+
+    if (mEncoderHandle) {
+        CHECK_EQ(VO_ERR_NONE, mApiHandle->Uninit(mEncoderHandle));
+        mEncoderHandle = NULL;
+    }
+
+    delete mApiHandle;
+    mApiHandle = NULL;
+
+    delete mMemOperator;
+    mMemOperator = NULL;
+}
+
+void SoftAACEncoder::initPorts() {
+    OMX_PARAM_PORTDEFINITIONTYPE def;
+    InitOMXParams(&def);
+
+    def.nPortIndex = 0;
+    def.eDir = OMX_DirInput;
+    def.nBufferCountMin = kNumBuffers;
+    def.nBufferCountActual = def.nBufferCountMin;
+    def.nBufferSize = kNumSamplesPerFrame * sizeof(int16_t) * 2;
+    def.bEnabled = OMX_TRUE;
+    def.bPopulated = OMX_FALSE;
+    def.eDomain = OMX_PortDomainAudio;
+    def.bBuffersContiguous = OMX_FALSE;
+    def.nBufferAlignment = 1;
+
+    def.format.audio.cMIMEType = const_cast<char *>("audio/raw");
+    def.format.audio.pNativeRender = NULL;
+    def.format.audio.bFlagErrorConcealment = OMX_FALSE;
+    def.format.audio.eEncoding = OMX_AUDIO_CodingPCM;
+
+    addPort(def);
+
+    def.nPortIndex = 1;
+    def.eDir = OMX_DirOutput;
+    def.nBufferCountMin = kNumBuffers;
+    def.nBufferCountActual = def.nBufferCountMin;
+    def.nBufferSize = 8192;
+    def.bEnabled = OMX_TRUE;
+    def.bPopulated = OMX_FALSE;
+    def.eDomain = OMX_PortDomainAudio;
+    def.bBuffersContiguous = OMX_FALSE;
+    def.nBufferAlignment = 2;
+
+    def.format.audio.cMIMEType = const_cast<char *>("audio/aac");
+    def.format.audio.pNativeRender = NULL;
+    def.format.audio.bFlagErrorConcealment = OMX_FALSE;
+    def.format.audio.eEncoding = OMX_AUDIO_CodingAAC;
+
+    addPort(def);
+}
+
+status_t SoftAACEncoder::initEncoder() {
+    mApiHandle = new VO_AUDIO_CODECAPI;
+
+    if (VO_ERR_NONE != voGetAACEncAPI(mApiHandle)) {
+        ALOGE("Failed to get api handle");
+        return UNKNOWN_ERROR;
+    }
+
+    mMemOperator = new VO_MEM_OPERATOR;
+    mMemOperator->Alloc = cmnMemAlloc;
+    mMemOperator->Copy = cmnMemCopy;
+    mMemOperator->Free = cmnMemFree;
+    mMemOperator->Set = cmnMemSet;
+    mMemOperator->Check = cmnMemCheck;
+
+    VO_CODEC_INIT_USERDATA userData;
+    memset(&userData, 0, sizeof(userData));
+    userData.memflag = VO_IMF_USERMEMOPERATOR;
+    userData.memData = (VO_PTR) mMemOperator;
+    if (VO_ERR_NONE !=
+            mApiHandle->Init(&mEncoderHandle, VO_AUDIO_CodingAAC, &userData)) {
+        ALOGE("Failed to init AAC encoder");
+        return UNKNOWN_ERROR;
+    }
+
+    return OK;
+}
+
+OMX_ERRORTYPE SoftAACEncoder::internalGetParameter(
+        OMX_INDEXTYPE index, OMX_PTR params) {
+    switch (index) {
+        case OMX_IndexParamAudioPortFormat:
+        {
+            OMX_AUDIO_PARAM_PORTFORMATTYPE *formatParams =
+                (OMX_AUDIO_PARAM_PORTFORMATTYPE *)params;
+
+            if (formatParams->nPortIndex > 1) {
+                return OMX_ErrorUndefined;
+            }
+
+            if (formatParams->nIndex > 0) {
+                return OMX_ErrorNoMore;
+            }
+
+            formatParams->eEncoding =
+                (formatParams->nPortIndex == 0)
+                    ? OMX_AUDIO_CodingPCM : OMX_AUDIO_CodingAAC;
+
+            return OMX_ErrorNone;
+        }
+
+        case OMX_IndexParamAudioAac:
+        {
+            OMX_AUDIO_PARAM_AACPROFILETYPE *aacParams =
+                (OMX_AUDIO_PARAM_AACPROFILETYPE *)params;
+
+            if (aacParams->nPortIndex != 1) {
+                return OMX_ErrorUndefined;
+            }
+
+            aacParams->nBitRate = mBitRate;
+            aacParams->nAudioBandWidth = 0;
+            aacParams->nAACtools = 0;
+            aacParams->nAACERtools = 0;
+            aacParams->eAACProfile = OMX_AUDIO_AACObjectMain;
+            aacParams->eAACStreamFormat = OMX_AUDIO_AACStreamFormatMP4FF;
+            aacParams->eChannelMode = OMX_AUDIO_ChannelModeStereo;
+
+            aacParams->nChannels = mNumChannels;
+            aacParams->nSampleRate = mSampleRate;
+            aacParams->nFrameLength = 0;
+
+            return OMX_ErrorNone;
+        }
+
+        case OMX_IndexParamAudioPcm:
+        {
+            OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams =
+                (OMX_AUDIO_PARAM_PCMMODETYPE *)params;
+
+            if (pcmParams->nPortIndex != 0) {
+                return OMX_ErrorUndefined;
+            }
+
+            pcmParams->eNumData = OMX_NumericalDataSigned;
+            pcmParams->eEndian = OMX_EndianBig;
+            pcmParams->bInterleaved = OMX_TRUE;
+            pcmParams->nBitPerSample = 16;
+            pcmParams->ePCMMode = OMX_AUDIO_PCMModeLinear;
+            pcmParams->eChannelMapping[0] = OMX_AUDIO_ChannelLF;
+            pcmParams->eChannelMapping[1] = OMX_AUDIO_ChannelRF;
+
+            pcmParams->nChannels = mNumChannels;
+            pcmParams->nSamplingRate = mSampleRate;
+
+            return OMX_ErrorNone;
+        }
+
+        default:
+            return SimpleSoftOMXComponent::internalGetParameter(index, params);
+    }
+}
+
+OMX_ERRORTYPE SoftAACEncoder::internalSetParameter(
+        OMX_INDEXTYPE index, const OMX_PTR params) {
+    switch (index) {
+        case OMX_IndexParamStandardComponentRole:
+        {
+            const OMX_PARAM_COMPONENTROLETYPE *roleParams =
+                (const OMX_PARAM_COMPONENTROLETYPE *)params;
+
+            if (strncmp((const char *)roleParams->cRole,
+                        "audio_encoder.aac",
+                        OMX_MAX_STRINGNAME_SIZE - 1)) {
+                return OMX_ErrorUndefined;
+            }
+
+            return OMX_ErrorNone;
+        }
+
+        case OMX_IndexParamAudioPortFormat:
+        {
+            const OMX_AUDIO_PARAM_PORTFORMATTYPE *formatParams =
+                (const OMX_AUDIO_PARAM_PORTFORMATTYPE *)params;
+
+            if (formatParams->nPortIndex > 1) {
+                return OMX_ErrorUndefined;
+            }
+
+            if (formatParams->nIndex > 0) {
+                return OMX_ErrorNoMore;
+            }
+
+            if ((formatParams->nPortIndex == 0
+                        && formatParams->eEncoding != OMX_AUDIO_CodingPCM)
+                || (formatParams->nPortIndex == 1
+                        && formatParams->eEncoding != OMX_AUDIO_CodingAAC)) {
+                return OMX_ErrorUndefined;
+            }
+
+            return OMX_ErrorNone;
+        }
+
+        case OMX_IndexParamAudioAac:
+        {
+            OMX_AUDIO_PARAM_AACPROFILETYPE *aacParams =
+                (OMX_AUDIO_PARAM_AACPROFILETYPE *)params;
+
+            if (aacParams->nPortIndex != 1) {
+                return OMX_ErrorUndefined;
+            }
+
+            mBitRate = aacParams->nBitRate;
+            mNumChannels = aacParams->nChannels;
+            mSampleRate = aacParams->nSampleRate;
+
+            if (setAudioParams() != OK) {
+                return OMX_ErrorUndefined;
+            }
+
+            return OMX_ErrorNone;
+        }
+
+        case OMX_IndexParamAudioPcm:
+        {
+            OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams =
+                (OMX_AUDIO_PARAM_PCMMODETYPE *)params;
+
+            if (pcmParams->nPortIndex != 0) {
+                return OMX_ErrorUndefined;
+            }
+
+            mNumChannels = pcmParams->nChannels;
+            mSampleRate = pcmParams->nSamplingRate;
+
+            if (setAudioParams() != OK) {
+                return OMX_ErrorUndefined;
+            }
+
+            return OMX_ErrorNone;
+        }
+
+
+        default:
+            return SimpleSoftOMXComponent::internalSetParameter(index, params);
+    }
+}
+
+status_t SoftAACEncoder::setAudioParams() {
+    // We call this whenever sample rate, number of channels or bitrate change
+    // in reponse to setParameter calls.
+
+    ALOGV("setAudioParams: %lu Hz, %lu channels, %lu bps",
+         mSampleRate, mNumChannels, mBitRate);
+
+    status_t err = setAudioSpecificConfigData();
+
+    if (err != OK) {
+        return err;
+    }
+
+    AACENC_PARAM params;
+    memset(&params, 0, sizeof(params));
+    params.sampleRate = mSampleRate;
+    params.bitRate = mBitRate;
+    params.nChannels = mNumChannels;
+    params.adtsUsed = 0;  // We add adts header in the file writer if needed.
+    if (VO_ERR_NONE != mApiHandle->SetParam(
+                mEncoderHandle, VO_PID_AAC_ENCPARAM,  &params)) {
+        ALOGE("Failed to set AAC encoder parameters");
+        return UNKNOWN_ERROR;
+    }
+
+    return OK;
+}
+
+static status_t getSampleRateTableIndex(int32_t sampleRate, int32_t &index) {
+    static const int32_t kSampleRateTable[] = {
+        96000, 88200, 64000, 48000, 44100, 32000,
+        24000, 22050, 16000, 12000, 11025, 8000
+    };
+    const int32_t tableSize =
+        sizeof(kSampleRateTable) / sizeof(kSampleRateTable[0]);
+
+    for (int32_t i = 0; i < tableSize; ++i) {
+        if (sampleRate == kSampleRateTable[i]) {
+            index = i;
+            return OK;
+        }
+    }
+
+    return UNKNOWN_ERROR;
+}
+
+status_t SoftAACEncoder::setAudioSpecificConfigData() {
+    // The AAC encoder's audio specific config really only encodes
+    // number of channels and the sample rate (mapped to an index into
+    // a fixed sample rate table).
+
+    int32_t index;
+    status_t err = getSampleRateTableIndex(mSampleRate, index);
+    if (err != OK) {
+        ALOGE("Unsupported sample rate (%lu Hz)", mSampleRate);
+        return err;
+    }
+
+    if (mNumChannels > 2 || mNumChannels <= 0) {
+        ALOGE("Unsupported number of channels(%lu)", mNumChannels);
+        return UNKNOWN_ERROR;
+    }
+
+    // OMX_AUDIO_AACObjectLC
+    mAudioSpecificConfigData[0] = ((0x02 << 3) | (index >> 1));
+    mAudioSpecificConfigData[1] = ((index & 0x01) << 7) | (mNumChannels << 3);
+
+    return OK;
+}
+
+void SoftAACEncoder::onQueueFilled(OMX_U32 portIndex) {
+    if (mSignalledError) {
+        return;
+    }
+
+    List<BufferInfo *> &inQueue = getPortQueue(0);
+    List<BufferInfo *> &outQueue = getPortQueue(1);
+
+    if (!mSentCodecSpecificData) {
+        // The very first thing we want to output is the codec specific
+        // data. It does not require any input data but we will need an
+        // output buffer to store it in.
+
+        if (outQueue.empty()) {
+            return;
+        }
+
+        BufferInfo *outInfo = *outQueue.begin();
+        OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader;
+        outHeader->nFilledLen = sizeof(mAudioSpecificConfigData);
+        outHeader->nFlags = OMX_BUFFERFLAG_CODECCONFIG;
+
+        uint8_t *out = outHeader->pBuffer + outHeader->nOffset;
+        memcpy(out, mAudioSpecificConfigData, sizeof(mAudioSpecificConfigData));
+
+#if 0
+        ALOGI("sending codec specific data.");
+        hexdump(out, sizeof(mAudioSpecificConfigData));
+#endif
+
+        outQueue.erase(outQueue.begin());
+        outInfo->mOwnedByUs = false;
+        notifyFillBufferDone(outHeader);
+
+        mSentCodecSpecificData = true;
+    }
+
+    size_t numBytesPerInputFrame =
+        mNumChannels * kNumSamplesPerFrame * sizeof(int16_t);
+
+    for (;;) {
+        // We do the following until we run out of buffers.
+
+        while (mInputSize < numBytesPerInputFrame) {
+            // As long as there's still input data to be read we
+            // will drain "kNumSamplesPerFrame * mNumChannels" samples
+            // into the "mInputFrame" buffer and then encode those
+            // as a unit into an output buffer.
+
+            if (mSawInputEOS || inQueue.empty()) {
+                return;
+            }
+
+            BufferInfo *inInfo = *inQueue.begin();
+            OMX_BUFFERHEADERTYPE *inHeader = inInfo->mHeader;
+
+            const void *inData = inHeader->pBuffer + inHeader->nOffset;
+
+            size_t copy = numBytesPerInputFrame - mInputSize;
+            if (copy > inHeader->nFilledLen) {
+                copy = inHeader->nFilledLen;
+            }
+
+            if (mInputFrame == NULL) {
+                mInputFrame = new int16_t[kNumSamplesPerFrame * mNumChannels];
+            }
+
+            if (mInputSize == 0) {
+                mInputTimeUs = inHeader->nTimeStamp;
+            }
+
+            memcpy((uint8_t *)mInputFrame + mInputSize, inData, copy);
+            mInputSize += copy;
+
+            inHeader->nOffset += copy;
+            inHeader->nFilledLen -= copy;
+
+            // "Time" on the input buffer has in effect advanced by the
+            // number of audio frames we just advanced nOffset by.
+            inHeader->nTimeStamp +=
+                (copy * 1000000ll / mSampleRate)
+                    / (mNumChannels * sizeof(int16_t));
+
+            if (inHeader->nFilledLen == 0) {
+                if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
+                    ALOGV("saw input EOS");
+                    mSawInputEOS = true;
+
+                    // Pad any remaining data with zeroes.
+                    memset((uint8_t *)mInputFrame + mInputSize,
+                           0,
+                           numBytesPerInputFrame - mInputSize);
+
+                    mInputSize = numBytesPerInputFrame;
+                }
+
+                inQueue.erase(inQueue.begin());
+                inInfo->mOwnedByUs = false;
+                notifyEmptyBufferDone(inHeader);
+
+                inData = NULL;
+                inHeader = NULL;
+                inInfo = NULL;
+            }
+        }
+
+        // At this  point we have all the input data necessary to encode
+        // a single frame, all we need is an output buffer to store the result
+        // in.
+
+        if (outQueue.empty()) {
+            return;
+        }
+
+        BufferInfo *outInfo = *outQueue.begin();
+        OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader;
+
+        VO_CODECBUFFER inputData;
+        memset(&inputData, 0, sizeof(inputData));
+        inputData.Buffer = (unsigned char *)mInputFrame;
+        inputData.Length = numBytesPerInputFrame;
+        CHECK(VO_ERR_NONE ==
+                mApiHandle->SetInputData(mEncoderHandle, &inputData));
+
+        VO_CODECBUFFER outputData;
+        memset(&outputData, 0, sizeof(outputData));
+        VO_AUDIO_OUTPUTINFO outputInfo;
+        memset(&outputInfo, 0, sizeof(outputInfo));
+
+        uint8_t *outPtr = (uint8_t *)outHeader->pBuffer + outHeader->nOffset;
+        size_t outAvailable = outHeader->nAllocLen - outHeader->nOffset;
+
+        VO_U32 ret = VO_ERR_NONE;
+        size_t nOutputBytes = 0;
+        do {
+            outputData.Buffer = outPtr;
+            outputData.Length = outAvailable - nOutputBytes;
+            ret = mApiHandle->GetOutputData(
+                    mEncoderHandle, &outputData, &outputInfo);
+            if (ret == VO_ERR_NONE) {
+                outPtr += outputData.Length;
+                nOutputBytes += outputData.Length;
+            }
+        } while (ret != VO_ERR_INPUT_BUFFER_SMALL);
+
+        outHeader->nFilledLen = nOutputBytes;
+
+        outHeader->nFlags = OMX_BUFFERFLAG_ENDOFFRAME;
+
+        if (mSawInputEOS) {
+            // We also tag this output buffer with EOS if it corresponds
+            // to the final input buffer.
+            outHeader->nFlags = OMX_BUFFERFLAG_EOS;
+        }
+
+        outHeader->nTimeStamp = mInputTimeUs;
+
+#if 0
+        ALOGI("sending %d bytes of data (time = %lld us, flags = 0x%08lx)",
+              nOutputBytes, mInputTimeUs, outHeader->nFlags);
+
+        hexdump(outHeader->pBuffer + outHeader->nOffset, outHeader->nFilledLen);
+#endif
+
+        outQueue.erase(outQueue.begin());
+        outInfo->mOwnedByUs = false;
+        notifyFillBufferDone(outHeader);
+
+        outHeader = NULL;
+        outInfo = NULL;
+
+        mInputSize = 0;
+    }
+}
+
+}  // namespace android
+
+android::SoftOMXComponent *createSoftOMXComponent(
+        const char *name, const OMX_CALLBACKTYPE *callbacks,
+        OMX_PTR appData, OMX_COMPONENTTYPE **component) {
+    return new android::SoftAACEncoder(name, callbacks, appData, component);
+}
diff --git a/media/libstagefright/codecs/aacenc/SoftAACEncoder.h b/media/libstagefright/codecs/aacenc/SoftAACEncoder.h
new file mode 100644
index 0000000..d148eb7
--- /dev/null
+++ b/media/libstagefright/codecs/aacenc/SoftAACEncoder.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2012 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 SOFT_AAC_ENCODER_H_
+
+#define SOFT_AAC_ENCODER_H_
+
+#include "SimpleSoftOMXComponent.h"
+
+struct VO_AUDIO_CODECAPI;
+struct VO_MEM_OPERATOR;
+
+namespace android {
+
+struct SoftAACEncoder : public SimpleSoftOMXComponent {
+    SoftAACEncoder(
+            const char *name,
+            const OMX_CALLBACKTYPE *callbacks,
+            OMX_PTR appData,
+            OMX_COMPONENTTYPE **component);
+
+protected:
+    virtual ~SoftAACEncoder();
+
+    virtual OMX_ERRORTYPE internalGetParameter(
+            OMX_INDEXTYPE index, OMX_PTR params);
+
+    virtual OMX_ERRORTYPE internalSetParameter(
+            OMX_INDEXTYPE index, const OMX_PTR params);
+
+    virtual void onQueueFilled(OMX_U32 portIndex);
+
+private:
+    enum {
+        kNumBuffers             = 4,
+        kNumSamplesPerFrame     = 1024,
+    };
+
+    void *mEncoderHandle;
+    VO_AUDIO_CODECAPI *mApiHandle;
+    VO_MEM_OPERATOR  *mMemOperator;
+
+    OMX_U32 mNumChannels;
+    OMX_U32 mSampleRate;
+    OMX_U32 mBitRate;
+
+    bool mSentCodecSpecificData;
+    size_t mInputSize;
+    int16_t *mInputFrame;
+    int64_t mInputTimeUs;
+
+    bool mSawInputEOS;
+
+    uint8_t mAudioSpecificConfigData[2];
+
+    bool mSignalledError;
+
+    void initPorts();
+    status_t initEncoder();
+
+    status_t setAudioSpecificConfigData();
+    status_t setAudioParams();
+
+    DISALLOW_EVIL_CONSTRUCTORS(SoftAACEncoder);
+};
+
+}  // namespace android
+
+#endif  // SOFT_AAC_ENCODER_H_
diff --git a/media/libstagefright/codecs/amrnb/enc/Android.mk b/media/libstagefright/codecs/amrnb/enc/Android.mk
index b6aed81..94e8726 100644
--- a/media/libstagefright/codecs/amrnb/enc/Android.mk
+++ b/media/libstagefright/codecs/amrnb/enc/Android.mk
@@ -74,3 +74,30 @@
 LOCAL_MODULE := libstagefright_amrnbenc
 
 include $(BUILD_STATIC_LIBRARY)
+
+################################################################################
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+        SoftAMRNBEncoder.cpp
+
+LOCAL_C_INCLUDES := \
+        frameworks/base/media/libstagefright/include \
+        frameworks/base/include/media/stagefright/openmax \
+        $(LOCAL_PATH)/src \
+        $(LOCAL_PATH)/include \
+        $(LOCAL_PATH)/../common/include \
+        $(LOCAL_PATH)/../common
+
+LOCAL_STATIC_LIBRARIES := \
+        libstagefright_amrnbenc
+
+LOCAL_SHARED_LIBRARIES := \
+        libstagefright_omx libstagefright_foundation libutils \
+        libstagefright_amrnb_common
+
+LOCAL_MODULE := libstagefright_soft_amrnbenc
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/codecs/amrnb/enc/SoftAMRNBEncoder.cpp b/media/libstagefright/codecs/amrnb/enc/SoftAMRNBEncoder.cpp
new file mode 100644
index 0000000..07f8b4f
--- /dev/null
+++ b/media/libstagefright/codecs/amrnb/enc/SoftAMRNBEncoder.cpp
@@ -0,0 +1,404 @@
+/*
+ * Copyright (C) 2012 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 "SoftAMRNBEncoder"
+#include <utils/Log.h>
+
+#include "SoftAMRNBEncoder.h"
+
+#include "gsmamr_enc.h"
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/hexdump.h>
+
+namespace android {
+
+static const int32_t kSampleRate = 8000;
+
+template<class T>
+static void InitOMXParams(T *params) {
+    params->nSize = sizeof(T);
+    params->nVersion.s.nVersionMajor = 1;
+    params->nVersion.s.nVersionMinor = 0;
+    params->nVersion.s.nRevision = 0;
+    params->nVersion.s.nStep = 0;
+}
+
+SoftAMRNBEncoder::SoftAMRNBEncoder(
+        const char *name,
+        const OMX_CALLBACKTYPE *callbacks,
+        OMX_PTR appData,
+        OMX_COMPONENTTYPE **component)
+    : SimpleSoftOMXComponent(name, callbacks, appData, component),
+      mEncState(NULL),
+      mSidState(NULL),
+      mBitRate(0),
+      mMode(MR475),
+      mInputSize(0),
+      mInputTimeUs(-1ll),
+      mSawInputEOS(false),
+      mSignalledError(false) {
+    initPorts();
+    CHECK_EQ(initEncoder(), (status_t)OK);
+}
+
+SoftAMRNBEncoder::~SoftAMRNBEncoder() {
+    if (mEncState != NULL) {
+        AMREncodeExit(&mEncState, &mSidState);
+        mEncState = mSidState = NULL;
+    }
+}
+
+void SoftAMRNBEncoder::initPorts() {
+    OMX_PARAM_PORTDEFINITIONTYPE def;
+    InitOMXParams(&def);
+
+    def.nPortIndex = 0;
+    def.eDir = OMX_DirInput;
+    def.nBufferCountMin = kNumBuffers;
+    def.nBufferCountActual = def.nBufferCountMin;
+    def.nBufferSize = kNumSamplesPerFrame * sizeof(int16_t);
+    def.bEnabled = OMX_TRUE;
+    def.bPopulated = OMX_FALSE;
+    def.eDomain = OMX_PortDomainAudio;
+    def.bBuffersContiguous = OMX_FALSE;
+    def.nBufferAlignment = 1;
+
+    def.format.audio.cMIMEType = const_cast<char *>("audio/raw");
+    def.format.audio.pNativeRender = NULL;
+    def.format.audio.bFlagErrorConcealment = OMX_FALSE;
+    def.format.audio.eEncoding = OMX_AUDIO_CodingPCM;
+
+    addPort(def);
+
+    def.nPortIndex = 1;
+    def.eDir = OMX_DirOutput;
+    def.nBufferCountMin = kNumBuffers;
+    def.nBufferCountActual = def.nBufferCountMin;
+    def.nBufferSize = 8192;
+    def.bEnabled = OMX_TRUE;
+    def.bPopulated = OMX_FALSE;
+    def.eDomain = OMX_PortDomainAudio;
+    def.bBuffersContiguous = OMX_FALSE;
+    def.nBufferAlignment = 2;
+
+    def.format.audio.cMIMEType = const_cast<char *>("audio/3gpp");
+    def.format.audio.pNativeRender = NULL;
+    def.format.audio.bFlagErrorConcealment = OMX_FALSE;
+    def.format.audio.eEncoding = OMX_AUDIO_CodingAMR;
+
+    addPort(def);
+}
+
+status_t SoftAMRNBEncoder::initEncoder() {
+    if (AMREncodeInit(&mEncState, &mSidState, false /* dtx_enable */) != 0) {
+        return UNKNOWN_ERROR;
+    }
+
+    return OK;
+}
+
+OMX_ERRORTYPE SoftAMRNBEncoder::internalGetParameter(
+        OMX_INDEXTYPE index, OMX_PTR params) {
+    switch (index) {
+        case OMX_IndexParamAudioPortFormat:
+        {
+            OMX_AUDIO_PARAM_PORTFORMATTYPE *formatParams =
+                (OMX_AUDIO_PARAM_PORTFORMATTYPE *)params;
+
+            if (formatParams->nPortIndex > 1) {
+                return OMX_ErrorUndefined;
+            }
+
+            if (formatParams->nIndex > 0) {
+                return OMX_ErrorNoMore;
+            }
+
+            formatParams->eEncoding =
+                (formatParams->nPortIndex == 0)
+                    ? OMX_AUDIO_CodingPCM : OMX_AUDIO_CodingAMR;
+
+            return OMX_ErrorNone;
+        }
+
+        case OMX_IndexParamAudioAmr:
+        {
+            OMX_AUDIO_PARAM_AMRTYPE *amrParams =
+                (OMX_AUDIO_PARAM_AMRTYPE *)params;
+
+            if (amrParams->nPortIndex != 1) {
+                return OMX_ErrorUndefined;
+            }
+
+            amrParams->nChannels = 1;
+            amrParams->nBitRate = mBitRate;
+            amrParams->eAMRBandMode = (OMX_AUDIO_AMRBANDMODETYPE)(mMode + 1);
+            amrParams->eAMRDTXMode = OMX_AUDIO_AMRDTXModeOff;
+            amrParams->eAMRFrameFormat = OMX_AUDIO_AMRFrameFormatFSF;
+
+            return OMX_ErrorNone;
+        }
+
+        case OMX_IndexParamAudioPcm:
+        {
+            OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams =
+                (OMX_AUDIO_PARAM_PCMMODETYPE *)params;
+
+            if (pcmParams->nPortIndex != 0) {
+                return OMX_ErrorUndefined;
+            }
+
+            pcmParams->eNumData = OMX_NumericalDataSigned;
+            pcmParams->eEndian = OMX_EndianBig;
+            pcmParams->bInterleaved = OMX_TRUE;
+            pcmParams->nBitPerSample = 16;
+            pcmParams->ePCMMode = OMX_AUDIO_PCMModeLinear;
+            pcmParams->eChannelMapping[0] = OMX_AUDIO_ChannelCF;
+
+            pcmParams->nChannels = 1;
+            pcmParams->nSamplingRate = kSampleRate;
+
+            return OMX_ErrorNone;
+        }
+
+        default:
+            return SimpleSoftOMXComponent::internalGetParameter(index, params);
+    }
+}
+
+OMX_ERRORTYPE SoftAMRNBEncoder::internalSetParameter(
+        OMX_INDEXTYPE index, const OMX_PTR params) {
+    switch (index) {
+        case OMX_IndexParamStandardComponentRole:
+        {
+            const OMX_PARAM_COMPONENTROLETYPE *roleParams =
+                (const OMX_PARAM_COMPONENTROLETYPE *)params;
+
+            if (strncmp((const char *)roleParams->cRole,
+                        "audio_encoder.amrnb",
+                        OMX_MAX_STRINGNAME_SIZE - 1)) {
+                return OMX_ErrorUndefined;
+            }
+
+            return OMX_ErrorNone;
+        }
+
+        case OMX_IndexParamAudioPortFormat:
+        {
+            const OMX_AUDIO_PARAM_PORTFORMATTYPE *formatParams =
+                (const OMX_AUDIO_PARAM_PORTFORMATTYPE *)params;
+
+            if (formatParams->nPortIndex > 1) {
+                return OMX_ErrorUndefined;
+            }
+
+            if (formatParams->nIndex > 0) {
+                return OMX_ErrorNoMore;
+            }
+
+            if ((formatParams->nPortIndex == 0
+                        && formatParams->eEncoding != OMX_AUDIO_CodingPCM)
+                || (formatParams->nPortIndex == 1
+                        && formatParams->eEncoding != OMX_AUDIO_CodingAMR)) {
+                return OMX_ErrorUndefined;
+            }
+
+            return OMX_ErrorNone;
+        }
+
+        case OMX_IndexParamAudioAmr:
+        {
+            OMX_AUDIO_PARAM_AMRTYPE *amrParams =
+                (OMX_AUDIO_PARAM_AMRTYPE *)params;
+
+            if (amrParams->nPortIndex != 1) {
+                return OMX_ErrorUndefined;
+            }
+
+            if (amrParams->nChannels != 1
+                    || amrParams->eAMRDTXMode != OMX_AUDIO_AMRDTXModeOff
+                    || amrParams->eAMRFrameFormat
+                            != OMX_AUDIO_AMRFrameFormatFSF
+                    || amrParams->eAMRBandMode < OMX_AUDIO_AMRBandModeNB0
+                    || amrParams->eAMRBandMode > OMX_AUDIO_AMRBandModeNB7) {
+                return OMX_ErrorUndefined;
+            }
+
+            mBitRate = amrParams->nBitRate;
+            mMode = amrParams->eAMRBandMode - 1;
+
+            amrParams->eAMRDTXMode = OMX_AUDIO_AMRDTXModeOff;
+            amrParams->eAMRFrameFormat = OMX_AUDIO_AMRFrameFormatFSF;
+
+            return OMX_ErrorNone;
+        }
+
+        case OMX_IndexParamAudioPcm:
+        {
+            OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams =
+                (OMX_AUDIO_PARAM_PCMMODETYPE *)params;
+
+            if (pcmParams->nPortIndex != 0) {
+                return OMX_ErrorUndefined;
+            }
+
+            if (pcmParams->nChannels != 1
+                    || pcmParams->nSamplingRate != kSampleRate) {
+                return OMX_ErrorUndefined;
+            }
+
+            return OMX_ErrorNone;
+        }
+
+
+        default:
+            return SimpleSoftOMXComponent::internalSetParameter(index, params);
+    }
+}
+
+void SoftAMRNBEncoder::onQueueFilled(OMX_U32 portIndex) {
+    if (mSignalledError) {
+        return;
+    }
+
+    List<BufferInfo *> &inQueue = getPortQueue(0);
+    List<BufferInfo *> &outQueue = getPortQueue(1);
+
+    size_t numBytesPerInputFrame = kNumSamplesPerFrame * sizeof(int16_t);
+
+    for (;;) {
+        // We do the following until we run out of buffers.
+
+        while (mInputSize < numBytesPerInputFrame) {
+            // As long as there's still input data to be read we
+            // will drain "kNumSamplesPerFrame" samples
+            // into the "mInputFrame" buffer and then encode those
+            // as a unit into an output buffer.
+
+            if (mSawInputEOS || inQueue.empty()) {
+                return;
+            }
+
+            BufferInfo *inInfo = *inQueue.begin();
+            OMX_BUFFERHEADERTYPE *inHeader = inInfo->mHeader;
+
+            const void *inData = inHeader->pBuffer + inHeader->nOffset;
+
+            size_t copy = numBytesPerInputFrame - mInputSize;
+            if (copy > inHeader->nFilledLen) {
+                copy = inHeader->nFilledLen;
+            }
+
+            if (mInputSize == 0) {
+                mInputTimeUs = inHeader->nTimeStamp;
+            }
+
+            memcpy((uint8_t *)mInputFrame + mInputSize, inData, copy);
+            mInputSize += copy;
+
+            inHeader->nOffset += copy;
+            inHeader->nFilledLen -= copy;
+
+            // "Time" on the input buffer has in effect advanced by the
+            // number of audio frames we just advanced nOffset by.
+            inHeader->nTimeStamp +=
+                (copy * 1000000ll / kSampleRate) / sizeof(int16_t);
+
+            if (inHeader->nFilledLen == 0) {
+                if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
+                    ALOGV("saw input EOS");
+                    mSawInputEOS = true;
+
+                    // Pad any remaining data with zeroes.
+                    memset((uint8_t *)mInputFrame + mInputSize,
+                           0,
+                           numBytesPerInputFrame - mInputSize);
+
+                    mInputSize = numBytesPerInputFrame;
+                }
+
+                inQueue.erase(inQueue.begin());
+                inInfo->mOwnedByUs = false;
+                notifyEmptyBufferDone(inHeader);
+
+                inData = NULL;
+                inHeader = NULL;
+                inInfo = NULL;
+            }
+        }
+
+        // At this  point we have all the input data necessary to encode
+        // a single frame, all we need is an output buffer to store the result
+        // in.
+
+        if (outQueue.empty()) {
+            return;
+        }
+
+        BufferInfo *outInfo = *outQueue.begin();
+        OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader;
+
+        uint8_t *outPtr = outHeader->pBuffer + outHeader->nOffset;
+        size_t outAvailable = outHeader->nAllocLen - outHeader->nOffset;
+
+        Frame_Type_3GPP frameType;
+        int res = AMREncode(
+                mEncState, mSidState, (Mode)mMode,
+                mInputFrame, outPtr, &frameType, AMR_TX_WMF);
+
+        CHECK_GE(res, 0);
+        CHECK_LE((size_t)res, outAvailable);
+
+        // Convert header byte from WMF to IETF format.
+        outPtr[0] = ((outPtr[0] << 3) | 4) & 0x7c;
+
+        outHeader->nFilledLen = res;
+        outHeader->nFlags = OMX_BUFFERFLAG_ENDOFFRAME;
+
+        if (mSawInputEOS) {
+            // We also tag this output buffer with EOS if it corresponds
+            // to the final input buffer.
+            outHeader->nFlags = OMX_BUFFERFLAG_EOS;
+        }
+
+        outHeader->nTimeStamp = mInputTimeUs;
+
+#if 0
+        ALOGI("sending %d bytes of data (time = %lld us, flags = 0x%08lx)",
+              nOutputBytes, mInputTimeUs, outHeader->nFlags);
+
+        hexdump(outHeader->pBuffer + outHeader->nOffset, outHeader->nFilledLen);
+#endif
+
+        outQueue.erase(outQueue.begin());
+        outInfo->mOwnedByUs = false;
+        notifyFillBufferDone(outHeader);
+
+        outHeader = NULL;
+        outInfo = NULL;
+
+        mInputSize = 0;
+    }
+}
+
+}  // namespace android
+
+android::SoftOMXComponent *createSoftOMXComponent(
+        const char *name, const OMX_CALLBACKTYPE *callbacks,
+        OMX_PTR appData, OMX_COMPONENTTYPE **component) {
+    return new android::SoftAMRNBEncoder(name, callbacks, appData, component);
+}
diff --git a/media/libstagefright/codecs/amrnb/enc/SoftAMRNBEncoder.h b/media/libstagefright/codecs/amrnb/enc/SoftAMRNBEncoder.h
new file mode 100644
index 0000000..50178c4
--- /dev/null
+++ b/media/libstagefright/codecs/amrnb/enc/SoftAMRNBEncoder.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2012 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 SOFT_AMRNB_ENCODER_H_
+
+#define SOFT_AMRNB_ENCODER_H_
+
+#include "SimpleSoftOMXComponent.h"
+
+namespace android {
+
+struct SoftAMRNBEncoder : public SimpleSoftOMXComponent {
+    SoftAMRNBEncoder(
+            const char *name,
+            const OMX_CALLBACKTYPE *callbacks,
+            OMX_PTR appData,
+            OMX_COMPONENTTYPE **component);
+
+protected:
+    virtual ~SoftAMRNBEncoder();
+
+    virtual OMX_ERRORTYPE internalGetParameter(
+            OMX_INDEXTYPE index, OMX_PTR params);
+
+    virtual OMX_ERRORTYPE internalSetParameter(
+            OMX_INDEXTYPE index, const OMX_PTR params);
+
+    virtual void onQueueFilled(OMX_U32 portIndex);
+
+private:
+    enum {
+        kNumBuffers             = 4,
+        kNumSamplesPerFrame     = 160,
+    };
+
+    void *mEncState;
+    void *mSidState;
+
+    OMX_U32 mBitRate;
+    int mMode;
+
+    size_t mInputSize;
+    int16_t mInputFrame[kNumSamplesPerFrame];
+    int64_t mInputTimeUs;
+
+    bool mSawInputEOS;
+    bool mSignalledError;
+
+    void initPorts();
+    status_t initEncoder();
+
+    status_t setAudioParams();
+
+    DISALLOW_EVIL_CONSTRUCTORS(SoftAMRNBEncoder);
+};
+
+}  // namespace android
+
+#endif  // SOFT_AMRNB_ENCODER_H_
diff --git a/media/libstagefright/codecs/amrwbenc/Android.mk b/media/libstagefright/codecs/amrwbenc/Android.mk
index ae43870..6ce6171 100644
--- a/media/libstagefright/codecs/amrwbenc/Android.mk
+++ b/media/libstagefright/codecs/amrwbenc/Android.mk
@@ -117,4 +117,26 @@
 
 include $(BUILD_STATIC_LIBRARY)
 
+################################################################################
 
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+        SoftAMRWBEncoder.cpp
+
+LOCAL_C_INCLUDES := \
+        frameworks/base/media/libstagefright/include \
+        frameworks/base/include/media/stagefright/openmax \
+	frameworks/base/media/libstagefright/codecs/common/include \
+
+LOCAL_STATIC_LIBRARIES := \
+        libstagefright_amrwbenc
+
+LOCAL_SHARED_LIBRARIES := \
+        libstagefright_omx libstagefright_foundation libutils \
+        libstagefright_enc_common
+
+LOCAL_MODULE := libstagefright_soft_amrwbenc
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/codecs/amrwbenc/SoftAMRWBEncoder.cpp b/media/libstagefright/codecs/amrwbenc/SoftAMRWBEncoder.cpp
new file mode 100644
index 0000000..9ccb49c
--- /dev/null
+++ b/media/libstagefright/codecs/amrwbenc/SoftAMRWBEncoder.cpp
@@ -0,0 +1,459 @@
+/*
+ * Copyright (C) 2012 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 "SoftAMRWBEncoder"
+#include <utils/Log.h>
+
+#include "SoftAMRWBEncoder.h"
+
+#include "cmnMemory.h"
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/hexdump.h>
+
+namespace android {
+
+static const int32_t kSampleRate = 16000;
+
+template<class T>
+static void InitOMXParams(T *params) {
+    params->nSize = sizeof(T);
+    params->nVersion.s.nVersionMajor = 1;
+    params->nVersion.s.nVersionMinor = 0;
+    params->nVersion.s.nRevision = 0;
+    params->nVersion.s.nStep = 0;
+}
+
+SoftAMRWBEncoder::SoftAMRWBEncoder(
+        const char *name,
+        const OMX_CALLBACKTYPE *callbacks,
+        OMX_PTR appData,
+        OMX_COMPONENTTYPE **component)
+    : SimpleSoftOMXComponent(name, callbacks, appData, component),
+      mEncoderHandle(NULL),
+      mApiHandle(NULL),
+      mMemOperator(NULL),
+      mBitRate(0),
+      mMode(VOAMRWB_MD66),
+      mInputSize(0),
+      mInputTimeUs(-1ll),
+      mSawInputEOS(false),
+      mSignalledError(false) {
+    initPorts();
+    CHECK_EQ(initEncoder(), (status_t)OK);
+}
+
+SoftAMRWBEncoder::~SoftAMRWBEncoder() {
+    if (mEncoderHandle != NULL) {
+        CHECK_EQ(VO_ERR_NONE, mApiHandle->Uninit(mEncoderHandle));
+        mEncoderHandle = NULL;
+    }
+
+    delete mApiHandle;
+    mApiHandle = NULL;
+
+    delete mMemOperator;
+    mMemOperator = NULL;
+}
+
+void SoftAMRWBEncoder::initPorts() {
+    OMX_PARAM_PORTDEFINITIONTYPE def;
+    InitOMXParams(&def);
+
+    def.nPortIndex = 0;
+    def.eDir = OMX_DirInput;
+    def.nBufferCountMin = kNumBuffers;
+    def.nBufferCountActual = def.nBufferCountMin;
+    def.nBufferSize = kNumSamplesPerFrame * sizeof(int16_t);
+    def.bEnabled = OMX_TRUE;
+    def.bPopulated = OMX_FALSE;
+    def.eDomain = OMX_PortDomainAudio;
+    def.bBuffersContiguous = OMX_FALSE;
+    def.nBufferAlignment = 1;
+
+    def.format.audio.cMIMEType = const_cast<char *>("audio/raw");
+    def.format.audio.pNativeRender = NULL;
+    def.format.audio.bFlagErrorConcealment = OMX_FALSE;
+    def.format.audio.eEncoding = OMX_AUDIO_CodingPCM;
+
+    addPort(def);
+
+    def.nPortIndex = 1;
+    def.eDir = OMX_DirOutput;
+    def.nBufferCountMin = kNumBuffers;
+    def.nBufferCountActual = def.nBufferCountMin;
+    def.nBufferSize = 8192;
+    def.bEnabled = OMX_TRUE;
+    def.bPopulated = OMX_FALSE;
+    def.eDomain = OMX_PortDomainAudio;
+    def.bBuffersContiguous = OMX_FALSE;
+    def.nBufferAlignment = 2;
+
+    def.format.audio.cMIMEType = const_cast<char *>("audio/amr-wb");
+    def.format.audio.pNativeRender = NULL;
+    def.format.audio.bFlagErrorConcealment = OMX_FALSE;
+    def.format.audio.eEncoding = OMX_AUDIO_CodingAMR;
+
+    addPort(def);
+}
+
+status_t SoftAMRWBEncoder::initEncoder() {
+    mApiHandle = new VO_AUDIO_CODECAPI;
+
+    if (VO_ERR_NONE != voGetAMRWBEncAPI(mApiHandle)) {
+        ALOGE("Failed to get api handle");
+        return UNKNOWN_ERROR;
+    }
+
+    mMemOperator = new VO_MEM_OPERATOR;
+    mMemOperator->Alloc = cmnMemAlloc;
+    mMemOperator->Copy = cmnMemCopy;
+    mMemOperator->Free = cmnMemFree;
+    mMemOperator->Set = cmnMemSet;
+    mMemOperator->Check = cmnMemCheck;
+
+    VO_CODEC_INIT_USERDATA userData;
+    memset(&userData, 0, sizeof(userData));
+    userData.memflag = VO_IMF_USERMEMOPERATOR;
+    userData.memData = (VO_PTR) mMemOperator;
+
+    if (VO_ERR_NONE != mApiHandle->Init(
+                &mEncoderHandle, VO_AUDIO_CodingAMRWB, &userData)) {
+        ALOGE("Failed to init AMRWB encoder");
+        return UNKNOWN_ERROR;
+    }
+
+    VOAMRWBFRAMETYPE type = VOAMRWB_RFC3267;
+    if (VO_ERR_NONE != mApiHandle->SetParam(
+                mEncoderHandle, VO_PID_AMRWB_FRAMETYPE, &type)) {
+        ALOGE("Failed to set AMRWB encoder frame type to %d", type);
+        return UNKNOWN_ERROR;
+    }
+
+    return OK;
+}
+
+OMX_ERRORTYPE SoftAMRWBEncoder::internalGetParameter(
+        OMX_INDEXTYPE index, OMX_PTR params) {
+    switch (index) {
+        case OMX_IndexParamAudioPortFormat:
+        {
+            OMX_AUDIO_PARAM_PORTFORMATTYPE *formatParams =
+                (OMX_AUDIO_PARAM_PORTFORMATTYPE *)params;
+
+            if (formatParams->nPortIndex > 1) {
+                return OMX_ErrorUndefined;
+            }
+
+            if (formatParams->nIndex > 0) {
+                return OMX_ErrorNoMore;
+            }
+
+            formatParams->eEncoding =
+                (formatParams->nPortIndex == 0)
+                    ? OMX_AUDIO_CodingPCM : OMX_AUDIO_CodingAMR;
+
+            return OMX_ErrorNone;
+        }
+
+        case OMX_IndexParamAudioAmr:
+        {
+            OMX_AUDIO_PARAM_AMRTYPE *amrParams =
+                (OMX_AUDIO_PARAM_AMRTYPE *)params;
+
+            if (amrParams->nPortIndex != 1) {
+                return OMX_ErrorUndefined;
+            }
+
+            amrParams->nChannels = 1;
+            amrParams->nBitRate = mBitRate;
+
+            amrParams->eAMRBandMode =
+                (OMX_AUDIO_AMRBANDMODETYPE)(mMode + OMX_AUDIO_AMRBandModeWB0);
+
+            amrParams->eAMRDTXMode = OMX_AUDIO_AMRDTXModeOff;
+            amrParams->eAMRFrameFormat = OMX_AUDIO_AMRFrameFormatFSF;
+
+            return OMX_ErrorNone;
+        }
+
+        case OMX_IndexParamAudioPcm:
+        {
+            OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams =
+                (OMX_AUDIO_PARAM_PCMMODETYPE *)params;
+
+            if (pcmParams->nPortIndex != 0) {
+                return OMX_ErrorUndefined;
+            }
+
+            pcmParams->eNumData = OMX_NumericalDataSigned;
+            pcmParams->eEndian = OMX_EndianBig;
+            pcmParams->bInterleaved = OMX_TRUE;
+            pcmParams->nBitPerSample = 16;
+            pcmParams->ePCMMode = OMX_AUDIO_PCMModeLinear;
+            pcmParams->eChannelMapping[0] = OMX_AUDIO_ChannelCF;
+
+            pcmParams->nChannels = 1;
+            pcmParams->nSamplingRate = kSampleRate;
+
+            return OMX_ErrorNone;
+        }
+
+        default:
+            return SimpleSoftOMXComponent::internalGetParameter(index, params);
+    }
+}
+
+OMX_ERRORTYPE SoftAMRWBEncoder::internalSetParameter(
+        OMX_INDEXTYPE index, const OMX_PTR params) {
+    switch (index) {
+        case OMX_IndexParamStandardComponentRole:
+        {
+            const OMX_PARAM_COMPONENTROLETYPE *roleParams =
+                (const OMX_PARAM_COMPONENTROLETYPE *)params;
+
+            if (strncmp((const char *)roleParams->cRole,
+                        "audio_encoder.amrwb",
+                        OMX_MAX_STRINGNAME_SIZE - 1)) {
+                return OMX_ErrorUndefined;
+            }
+
+            return OMX_ErrorNone;
+        }
+
+        case OMX_IndexParamAudioPortFormat:
+        {
+            const OMX_AUDIO_PARAM_PORTFORMATTYPE *formatParams =
+                (const OMX_AUDIO_PARAM_PORTFORMATTYPE *)params;
+
+            if (formatParams->nPortIndex > 1) {
+                return OMX_ErrorUndefined;
+            }
+
+            if (formatParams->nIndex > 0) {
+                return OMX_ErrorNoMore;
+            }
+
+            if ((formatParams->nPortIndex == 0
+                        && formatParams->eEncoding != OMX_AUDIO_CodingPCM)
+                || (formatParams->nPortIndex == 1
+                        && formatParams->eEncoding != OMX_AUDIO_CodingAMR)) {
+                return OMX_ErrorUndefined;
+            }
+
+            return OMX_ErrorNone;
+        }
+
+        case OMX_IndexParamAudioAmr:
+        {
+            OMX_AUDIO_PARAM_AMRTYPE *amrParams =
+                (OMX_AUDIO_PARAM_AMRTYPE *)params;
+
+            if (amrParams->nPortIndex != 1) {
+                return OMX_ErrorUndefined;
+            }
+
+            if (amrParams->nChannels != 1
+                    || amrParams->eAMRDTXMode != OMX_AUDIO_AMRDTXModeOff
+                    || amrParams->eAMRFrameFormat
+                            != OMX_AUDIO_AMRFrameFormatFSF
+                    || amrParams->eAMRBandMode < OMX_AUDIO_AMRBandModeWB0
+                    || amrParams->eAMRBandMode > OMX_AUDIO_AMRBandModeWB8) {
+                return OMX_ErrorUndefined;
+            }
+
+            mBitRate = amrParams->nBitRate;
+
+            mMode = (VOAMRWBMODE)(
+                    amrParams->eAMRBandMode - OMX_AUDIO_AMRBandModeWB0);
+
+            amrParams->eAMRDTXMode = OMX_AUDIO_AMRDTXModeOff;
+            amrParams->eAMRFrameFormat = OMX_AUDIO_AMRFrameFormatFSF;
+
+            if (VO_ERR_NONE !=
+                    mApiHandle->SetParam(
+                        mEncoderHandle, VO_PID_AMRWB_MODE,  &mMode)) {
+                ALOGE("Failed to set AMRWB encoder mode to %d", mMode);
+                return OMX_ErrorUndefined;
+            }
+
+            return OMX_ErrorNone;
+        }
+
+        case OMX_IndexParamAudioPcm:
+        {
+            OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams =
+                (OMX_AUDIO_PARAM_PCMMODETYPE *)params;
+
+            if (pcmParams->nPortIndex != 0) {
+                return OMX_ErrorUndefined;
+            }
+
+            if (pcmParams->nChannels != 1
+                    || pcmParams->nSamplingRate != (OMX_U32)kSampleRate) {
+                return OMX_ErrorUndefined;
+            }
+
+            return OMX_ErrorNone;
+        }
+
+
+        default:
+            return SimpleSoftOMXComponent::internalSetParameter(index, params);
+    }
+}
+
+void SoftAMRWBEncoder::onQueueFilled(OMX_U32 portIndex) {
+    if (mSignalledError) {
+        return;
+    }
+
+    List<BufferInfo *> &inQueue = getPortQueue(0);
+    List<BufferInfo *> &outQueue = getPortQueue(1);
+
+    size_t numBytesPerInputFrame = kNumSamplesPerFrame * sizeof(int16_t);
+
+    for (;;) {
+        // We do the following until we run out of buffers.
+
+        while (mInputSize < numBytesPerInputFrame) {
+            // As long as there's still input data to be read we
+            // will drain "kNumSamplesPerFrame" samples
+            // into the "mInputFrame" buffer and then encode those
+            // as a unit into an output buffer.
+
+            if (mSawInputEOS || inQueue.empty()) {
+                return;
+            }
+
+            BufferInfo *inInfo = *inQueue.begin();
+            OMX_BUFFERHEADERTYPE *inHeader = inInfo->mHeader;
+
+            const void *inData = inHeader->pBuffer + inHeader->nOffset;
+
+            size_t copy = numBytesPerInputFrame - mInputSize;
+            if (copy > inHeader->nFilledLen) {
+                copy = inHeader->nFilledLen;
+            }
+
+            if (mInputSize == 0) {
+                mInputTimeUs = inHeader->nTimeStamp;
+            }
+
+            memcpy((uint8_t *)mInputFrame + mInputSize, inData, copy);
+            mInputSize += copy;
+
+            inHeader->nOffset += copy;
+            inHeader->nFilledLen -= copy;
+
+            // "Time" on the input buffer has in effect advanced by the
+            // number of audio frames we just advanced nOffset by.
+            inHeader->nTimeStamp +=
+                (copy * 1000000ll / kSampleRate) / sizeof(int16_t);
+
+            if (inHeader->nFilledLen == 0) {
+                if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
+                    ALOGV("saw input EOS");
+                    mSawInputEOS = true;
+
+                    // Pad any remaining data with zeroes.
+                    memset((uint8_t *)mInputFrame + mInputSize,
+                           0,
+                           numBytesPerInputFrame - mInputSize);
+
+                    mInputSize = numBytesPerInputFrame;
+                }
+
+                inQueue.erase(inQueue.begin());
+                inInfo->mOwnedByUs = false;
+                notifyEmptyBufferDone(inHeader);
+
+                inData = NULL;
+                inHeader = NULL;
+                inInfo = NULL;
+            }
+        }
+
+        // At this  point we have all the input data necessary to encode
+        // a single frame, all we need is an output buffer to store the result
+        // in.
+
+        if (outQueue.empty()) {
+            return;
+        }
+
+        BufferInfo *outInfo = *outQueue.begin();
+        OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader;
+
+        uint8_t *outPtr = outHeader->pBuffer + outHeader->nOffset;
+        size_t outAvailable = outHeader->nAllocLen - outHeader->nOffset;
+
+        VO_CODECBUFFER inputData;
+        memset(&inputData, 0, sizeof(inputData));
+        inputData.Buffer = (unsigned char *) mInputFrame;
+        inputData.Length = mInputSize;
+
+        CHECK_EQ(VO_ERR_NONE,
+                 mApiHandle->SetInputData(mEncoderHandle, &inputData));
+
+        VO_CODECBUFFER outputData;
+        memset(&outputData, 0, sizeof(outputData));
+        VO_AUDIO_OUTPUTINFO outputInfo;
+        memset(&outputInfo, 0, sizeof(outputInfo));
+
+        outputData.Buffer = outPtr;
+        outputData.Length = outAvailable;
+        VO_U32 ret = mApiHandle->GetOutputData(
+                mEncoderHandle, &outputData, &outputInfo);
+        CHECK(ret == VO_ERR_NONE || ret == VO_ERR_INPUT_BUFFER_SMALL);
+
+        outHeader->nFilledLen = outputData.Length;
+        outHeader->nFlags = OMX_BUFFERFLAG_ENDOFFRAME;
+
+        if (mSawInputEOS) {
+            // We also tag this output buffer with EOS if it corresponds
+            // to the final input buffer.
+            outHeader->nFlags = OMX_BUFFERFLAG_EOS;
+        }
+
+        outHeader->nTimeStamp = mInputTimeUs;
+
+#if 0
+        ALOGI("sending %ld bytes of data (time = %lld us, flags = 0x%08lx)",
+              outHeader->nFilledLen, mInputTimeUs, outHeader->nFlags);
+
+        hexdump(outHeader->pBuffer + outHeader->nOffset, outHeader->nFilledLen);
+#endif
+
+        outQueue.erase(outQueue.begin());
+        outInfo->mOwnedByUs = false;
+        notifyFillBufferDone(outHeader);
+
+        outHeader = NULL;
+        outInfo = NULL;
+
+        mInputSize = 0;
+    }
+}
+
+}  // namespace android
+
+android::SoftOMXComponent *createSoftOMXComponent(
+        const char *name, const OMX_CALLBACKTYPE *callbacks,
+        OMX_PTR appData, OMX_COMPONENTTYPE **component) {
+    return new android::SoftAMRWBEncoder(name, callbacks, appData, component);
+}
diff --git a/media/libstagefright/codecs/amrwbenc/SoftAMRWBEncoder.h b/media/libstagefright/codecs/amrwbenc/SoftAMRWBEncoder.h
new file mode 100644
index 0000000..d0c1dab
--- /dev/null
+++ b/media/libstagefright/codecs/amrwbenc/SoftAMRWBEncoder.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2012 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 SOFT_AMRWB_ENCODER_H_
+
+#define SOFT_AMRWB_ENCODER_H_
+
+#include "SimpleSoftOMXComponent.h"
+
+#include "voAMRWB.h"
+
+struct VO_AUDIO_CODECAPI;
+struct VO_MEM_OPERATOR;
+
+namespace android {
+
+struct SoftAMRWBEncoder : public SimpleSoftOMXComponent {
+    SoftAMRWBEncoder(
+            const char *name,
+            const OMX_CALLBACKTYPE *callbacks,
+            OMX_PTR appData,
+            OMX_COMPONENTTYPE **component);
+
+protected:
+    virtual ~SoftAMRWBEncoder();
+
+    virtual OMX_ERRORTYPE internalGetParameter(
+            OMX_INDEXTYPE index, OMX_PTR params);
+
+    virtual OMX_ERRORTYPE internalSetParameter(
+            OMX_INDEXTYPE index, const OMX_PTR params);
+
+    virtual void onQueueFilled(OMX_U32 portIndex);
+
+private:
+    enum {
+        kNumBuffers             = 4,
+        kNumSamplesPerFrame     = 320,
+    };
+
+    void *mEncoderHandle;
+    VO_AUDIO_CODECAPI *mApiHandle;
+    VO_MEM_OPERATOR *mMemOperator;
+
+    OMX_U32 mBitRate;
+    VOAMRWBMODE mMode;
+
+    size_t mInputSize;
+    int16_t mInputFrame[kNumSamplesPerFrame];
+    int64_t mInputTimeUs;
+
+    bool mSawInputEOS;
+    bool mSignalledError;
+
+    void initPorts();
+    status_t initEncoder();
+
+    DISALLOW_EVIL_CONSTRUCTORS(SoftAMRWBEncoder);
+};
+
+}  // namespace android
+
+#endif  // SOFT_AMRWB_ENCODER_H_
diff --git a/media/libstagefright/colorconversion/ColorConverter.cpp b/media/libstagefright/colorconversion/ColorConverter.cpp
index 5cc3f78..f3ef3de 100644
--- a/media/libstagefright/colorconversion/ColorConverter.cpp
+++ b/media/libstagefright/colorconversion/ColorConverter.cpp
@@ -144,8 +144,8 @@
         return ERROR_UNSUPPORTED;
     }
 
-    uint32_t *dst_ptr = (uint32_t *)dst.mBits
-        + (dst.mCropTop * dst.mWidth + dst.mCropLeft) / 2;
+    uint16_t *dst_ptr = (uint16_t *)dst.mBits
+        + dst.mCropTop * dst.mWidth + dst.mCropLeft;
 
     const uint8_t *src_ptr = (const uint8_t *)src.mBits
         + (src.mCropTop * dst.mWidth + src.mCropLeft) * 2;
@@ -182,11 +182,15 @@
                 | ((kAdjustedClip[g2] >> 2) << 5)
                 | (kAdjustedClip[b2] >> 3);
 
-            dst_ptr[x / 2] = (rgb2 << 16) | rgb1;
+            if (x + 1 < src.cropWidth()) {
+                *(uint32_t *)(&dst_ptr[x]) = (rgb2 << 16) | rgb1;
+            } else {
+                dst_ptr[x] = rgb1;
+            }
         }
 
         src_ptr += src.mWidth * 2;
-        dst_ptr += dst.mWidth / 2;
+        dst_ptr += dst.mWidth;
     }
 
     return OK;
@@ -290,15 +294,14 @@
         const BitmapParams &src, const BitmapParams &dst) {
     uint8_t *kAdjustedClip = initClip();
 
-    if (!((dst.mWidth & 3) == 0
-            && (src.mCropLeft & 1) == 0
+    if (!((src.mCropLeft & 1) == 0
             && src.cropWidth() == dst.cropWidth()
             && src.cropHeight() == dst.cropHeight())) {
         return ERROR_UNSUPPORTED;
     }
 
-    uint32_t *dst_ptr = (uint32_t *)dst.mBits
-        + (dst.mCropTop * dst.mWidth + dst.mCropLeft) / 2;
+    uint16_t *dst_ptr = (uint16_t *)dst.mBits
+        + dst.mCropTop * dst.mWidth + dst.mCropLeft;
 
     const uint8_t *src_y =
         (const uint8_t *)src.mBits + src.mCropTop * src.mWidth + src.mCropLeft;
@@ -340,7 +343,11 @@
                 | ((kAdjustedClip[g2] >> 2) << 5)
                 | (kAdjustedClip[r2] >> 3);
 
-            dst_ptr[x / 2] = (rgb2 << 16) | rgb1;
+            if (x + 1 < src.cropWidth()) {
+                *(uint32_t *)(&dst_ptr[x]) = (rgb2 << 16) | rgb1;
+            } else {
+                dst_ptr[x] = rgb1;
+            }
         }
 
         src_y += src.mWidth;
@@ -349,7 +356,7 @@
             src_u += src.mWidth;
         }
 
-        dst_ptr += dst.mWidth / 2;
+        dst_ptr += dst.mWidth;
     }
 
     return OK;
@@ -361,15 +368,14 @@
 
     uint8_t *kAdjustedClip = initClip();
 
-    if (!((dst.mWidth & 3) == 0
-            && (src.mCropLeft & 1) == 0
+    if (!((src.mCropLeft & 1) == 0
             && src.cropWidth() == dst.cropWidth()
             && src.cropHeight() == dst.cropHeight())) {
         return ERROR_UNSUPPORTED;
     }
 
-    uint32_t *dst_ptr = (uint32_t *)dst.mBits
-        + (dst.mCropTop * dst.mWidth + dst.mCropLeft) / 2;
+    uint16_t *dst_ptr = (uint16_t *)dst.mBits
+        + dst.mCropTop * dst.mWidth + dst.mCropLeft;
 
     const uint8_t *src_y =
         (const uint8_t *)src.mBits + src.mCropTop * src.mWidth + src.mCropLeft;
@@ -411,7 +417,11 @@
                 | ((kAdjustedClip[g2] >> 2) << 5)
                 | (kAdjustedClip[r2] >> 3);
 
-            dst_ptr[x / 2] = (rgb2 << 16) | rgb1;
+            if (x + 1 < src.cropWidth()) {
+                *(uint32_t *)(&dst_ptr[x]) = (rgb2 << 16) | rgb1;
+            } else {
+                dst_ptr[x] = rgb1;
+            }
         }
 
         src_y += src.mWidth;
@@ -420,7 +430,7 @@
             src_u += src.mWidth;
         }
 
-        dst_ptr += dst.mWidth / 2;
+        dst_ptr += dst.mWidth;
     }
 
     return OK;
@@ -430,15 +440,14 @@
         const BitmapParams &src, const BitmapParams &dst) {
     uint8_t *kAdjustedClip = initClip();
 
-    if (!((dst.mWidth & 3) == 0
-            && (src.mCropLeft & 1) == 0
+    if (!((src.mCropLeft & 1) == 0
             && src.cropWidth() == dst.cropWidth()
             && src.cropHeight() == dst.cropHeight())) {
         return ERROR_UNSUPPORTED;
     }
 
-    uint32_t *dst_ptr = (uint32_t *)dst.mBits
-        + (dst.mCropTop * dst.mWidth + dst.mCropLeft) / 2;
+    uint16_t *dst_ptr = (uint16_t *)dst.mBits
+        + dst.mCropTop * dst.mWidth + dst.mCropLeft;
 
     const uint8_t *src_y = (const uint8_t *)src.mBits;
 
@@ -478,7 +487,11 @@
                 | ((kAdjustedClip[g2] >> 2) << 5)
                 | (kAdjustedClip[b2] >> 3);
 
-            dst_ptr[x / 2] = (rgb2 << 16) | rgb1;
+            if (x + 1 < src.cropWidth()) {
+                *(uint32_t *)(&dst_ptr[x]) = (rgb2 << 16) | rgb1;
+            } else {
+                dst_ptr[x] = rgb1;
+            }
         }
 
         src_y += src.mWidth;
@@ -487,7 +500,7 @@
             src_u += src.mWidth;
         }
 
-        dst_ptr += dst.mWidth / 2;
+        dst_ptr += dst.mWidth;
     }
 
     return OK;
diff --git a/media/libstagefright/include/AwesomePlayer.h b/media/libstagefright/include/AwesomePlayer.h
index 82c6476..a7a3d47 100644
--- a/media/libstagefright/include/AwesomePlayer.h
+++ b/media/libstagefright/include/AwesomePlayer.h
@@ -41,7 +41,7 @@
 class DrmManagerClinet;
 class DecryptHandle;
 
-class TimedTextPlayer;
+class TimedTextDriver;
 struct WVMExtractor;
 
 struct AwesomeRenderer : public RefBase {
@@ -232,7 +232,7 @@
     sp<DecryptHandle> mDecryptHandle;
 
     int64_t mLastVideoTimeUs;
-    TimedTextPlayer *mTextPlayer;
+    TimedTextDriver *mTextDriver;
     mutable Mutex mTimedTextLock;
 
     sp<WVMExtractor> mWVMExtractor;
@@ -326,4 +326,3 @@
 }  // namespace android
 
 #endif  // AWESOME_PLAYER_H_
-
diff --git a/media/libstagefright/include/OMX.h b/media/libstagefright/include/OMX.h
index 53e764f..2c87b34 100644
--- a/media/libstagefright/include/OMX.h
+++ b/media/libstagefright/include/OMX.h
@@ -31,7 +31,7 @@
 public:
     OMX();
 
-    virtual bool livesLocally(pid_t pid);
+    virtual bool livesLocally(node_id node, pid_t pid);
 
     virtual status_t listNodes(List<ComponentInfo> *list);
 
diff --git a/media/libstagefright/omx/OMX.cpp b/media/libstagefright/omx/OMX.cpp
index 694b12d..ace883c 100644
--- a/media/libstagefright/omx/OMX.cpp
+++ b/media/libstagefright/omx/OMX.cpp
@@ -185,7 +185,7 @@
     instance->onObserverDied(mMaster);
 }
 
-bool OMX::livesLocally(pid_t pid) {
+bool OMX::livesLocally(node_id node, pid_t pid) {
     return pid == getpid();
 }
 
diff --git a/media/libstagefright/omx/SimpleSoftOMXComponent.cpp b/media/libstagefright/omx/SimpleSoftOMXComponent.cpp
index 0914f32..c79e01f 100644
--- a/media/libstagefright/omx/SimpleSoftOMXComponent.cpp
+++ b/media/libstagefright/omx/SimpleSoftOMXComponent.cpp
@@ -333,8 +333,9 @@
 
 void SimpleSoftOMXComponent::onMessageReceived(const sp<AMessage> &msg) {
     Mutex::Autolock autoLock(mLock);
-
-    switch (msg->what()) {
+    uint32_t msgType = msg->what();
+    ALOGV("msgType = %d", msgType);
+    switch (msgType) {
         case kWhatSendCommand:
         {
             int32_t cmd, param;
@@ -354,27 +355,27 @@
             CHECK(mState == OMX_StateExecuting && mTargetState == mState);
 
             bool found = false;
-            for (size_t i = 0; i < mPorts.size(); ++i) {
-                PortInfo *port = &mPorts.editItemAt(i);
+            size_t portIndex = (kWhatEmptyThisBuffer == msgType)?
+                    header->nInputPortIndex: header->nOutputPortIndex;
+            PortInfo *port = &mPorts.editItemAt(portIndex);
 
-                for (size_t j = 0; j < port->mBuffers.size(); ++j) {
-                    BufferInfo *buffer = &port->mBuffers.editItemAt(j);
+            for (size_t j = 0; j < port->mBuffers.size(); ++j) {
+                BufferInfo *buffer = &port->mBuffers.editItemAt(j);
 
-                    if (buffer->mHeader == header) {
-                        CHECK(!buffer->mOwnedByUs);
+                if (buffer->mHeader == header) {
+                    CHECK(!buffer->mOwnedByUs);
 
-                        buffer->mOwnedByUs = true;
+                    buffer->mOwnedByUs = true;
 
-                        CHECK((msg->what() == kWhatEmptyThisBuffer
-                                    && port->mDef.eDir == OMX_DirInput)
-                                || (port->mDef.eDir == OMX_DirOutput));
+                    CHECK((msgType == kWhatEmptyThisBuffer
+                            && port->mDef.eDir == OMX_DirInput)
+                            || (port->mDef.eDir == OMX_DirOutput));
 
-                        port->mQueue.push_back(buffer);
-                        onQueueFilled(i);
+                    port->mQueue.push_back(buffer);
+                    onQueueFilled(portIndex);
 
-                        found = true;
-                        break;
-                    }
+                    found = true;
+                    break;
                 }
             }
 
diff --git a/media/libstagefright/omx/SoftOMXPlugin.cpp b/media/libstagefright/omx/SoftOMXPlugin.cpp
index da3ae42..99ffe7d 100644
--- a/media/libstagefright/omx/SoftOMXPlugin.cpp
+++ b/media/libstagefright/omx/SoftOMXPlugin.cpp
@@ -35,8 +35,11 @@
 
 } kComponents[] = {
     { "OMX.google.aac.decoder", "aacdec", "audio_decoder.aac" },
+    { "OMX.google.aac.encoder", "aacenc", "audio_encoder.aac" },
     { "OMX.google.amrnb.decoder", "amrdec", "audio_decoder.amrnb" },
+    { "OMX.google.amrnb.encoder", "amrnbenc", "audio_encoder.amrnb" },
     { "OMX.google.amrwb.decoder", "amrdec", "audio_decoder.amrwb" },
+    { "OMX.google.amrwb.encoder", "amrwbenc", "audio_encoder.amrwb" },
     { "OMX.google.h264.decoder", "h264dec", "video_decoder.avc" },
     { "OMX.google.g711.alaw.decoder", "g711dec", "audio_decoder.g711alaw" },
     { "OMX.google.g711.mlaw.decoder", "g711dec", "audio_decoder.g711mlaw" },
diff --git a/media/libstagefright/omx/tests/Android.mk b/media/libstagefright/omx/tests/Android.mk
index bf69428..41c08be 100644
--- a/media/libstagefright/omx/tests/Android.mk
+++ b/media/libstagefright/omx/tests/Android.mk
@@ -7,11 +7,13 @@
 LOCAL_SHARED_LIBRARIES := \
 	libstagefright libbinder libmedia libutils
 
-LOCAL_C_INCLUDES:= \
+LOCAL_C_INCLUDES := \
 	$(JNI_H_INCLUDE) \
 	frameworks/base/media/libstagefright \
 	$(TOP)/frameworks/base/include/media/stagefright/openmax
 
-LOCAL_MODULE:= omx_tests
+LOCAL_MODULE := omx_tests
+
+LOCAL_MODULE_TAGS := tests
 
 include $(BUILD_EXECUTABLE)
diff --git a/media/libstagefright/timedtext/Android.mk b/media/libstagefright/timedtext/Android.mk
index 59d0e15..8b23dee 100644
--- a/media/libstagefright/timedtext/Android.mk
+++ b/media/libstagefright/timedtext/Android.mk
@@ -3,7 +3,10 @@
 
 LOCAL_SRC_FILES:=                 \
         TextDescriptions.cpp      \
-        TimedTextParser.cpp       \
+        TimedTextDriver.cpp       \
+        TimedTextInBandSource.cpp \
+        TimedTextSource.cpp       \
+        TimedTextSRTSource.cpp    \
         TimedTextPlayer.cpp
 
 LOCAL_CFLAGS += -Wno-multichar
diff --git a/media/libstagefright/timedtext/TimedTextDriver.cpp b/media/libstagefright/timedtext/TimedTextDriver.cpp
new file mode 100644
index 0000000..9ec9415
--- /dev/null
+++ b/media/libstagefright/timedtext/TimedTextDriver.cpp
@@ -0,0 +1,223 @@
+ /*
+ * Copyright (C) 2012 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 "TimedTextDriver"
+#include <utils/Log.h>
+
+#include <binder/IPCThreadState.h>
+
+#include <media/MediaPlayerInterface.h>
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/MediaSource.h>
+#include <media/stagefright/DataSource.h>
+#include <media/stagefright/Utils.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/ALooper.h>
+
+#include "TimedTextDriver.h"
+
+#include "TextDescriptions.h"
+#include "TimedTextPlayer.h"
+#include "TimedTextSource.h"
+
+namespace android {
+
+TimedTextDriver::TimedTextDriver(
+        const wp<MediaPlayerBase> &listener)
+    : mLooper(new ALooper),
+      mListener(listener),
+      mState(UNINITIALIZED) {
+    mLooper->setName("TimedTextDriver");
+    mLooper->start();
+    mPlayer = new TimedTextPlayer(listener);
+    mLooper->registerHandler(mPlayer);
+}
+
+TimedTextDriver::~TimedTextDriver() {
+    mTextInBandVector.clear();
+    mTextOutOfBandVector.clear();
+    mLooper->stop();
+}
+
+status_t TimedTextDriver::setTimedTextTrackIndex_l(int32_t index) {
+    if (index >=
+            (int)(mTextInBandVector.size() + mTextOutOfBandVector.size())) {
+        return BAD_VALUE;
+    }
+
+    sp<TimedTextSource> source;
+    if (index < mTextInBandVector.size()) {
+        source = mTextInBandVector.itemAt(index);
+    } else {
+        source = mTextOutOfBandVector.itemAt(index - mTextInBandVector.size());
+    }
+    mPlayer->setDataSource(source);
+    return OK;
+}
+
+status_t TimedTextDriver::start() {
+    Mutex::Autolock autoLock(mLock);
+    switch (mState) {
+        case UNINITIALIZED:
+            return INVALID_OPERATION;
+        case STOPPED:
+            mPlayer->start();
+            break;
+        case PLAYING:
+            return OK;
+        case PAUSED:
+            mPlayer->resume();
+            break;
+        default:
+            TRESPASS();
+    }
+    mState = PLAYING;
+    return OK;
+}
+
+status_t TimedTextDriver::stop() {
+    return pause();
+}
+
+// TODO: Test if pause() works properly.
+// Scenario 1: start - pause - resume
+// Scenario 2: start - seek
+// Scenario 3: start - pause - seek - resume
+status_t TimedTextDriver::pause() {
+    Mutex::Autolock autoLock(mLock);
+    switch (mState) {
+        case UNINITIALIZED:
+            return INVALID_OPERATION;
+        case STOPPED:
+            return OK;
+        case PLAYING:
+            mPlayer->pause();
+            break;
+        case PAUSED:
+            return OK;
+        default:
+            TRESPASS();
+    }
+    mState = PAUSED;
+    return OK;
+}
+
+status_t TimedTextDriver::resume() {
+    return start();
+}
+
+status_t TimedTextDriver::seekToAsync(int64_t timeUs) {
+    mPlayer->seekToAsync(timeUs);
+    return OK;
+}
+
+status_t TimedTextDriver::setTimedTextTrackIndex(int32_t index) {
+    // TODO: This is current implementation for MediaPlayer::disableTimedText().
+    // Find better way for readability.
+    if (index < 0) {
+        mPlayer->pause();
+        return OK;
+    }
+
+    status_t ret = OK;
+    Mutex::Autolock autoLock(mLock);
+    switch (mState) {
+        case UNINITIALIZED:
+            ret = INVALID_OPERATION;
+            break;
+        case PAUSED:
+            ret = setTimedTextTrackIndex_l(index);
+            break;
+        case PLAYING:
+            mPlayer->pause();
+            ret = setTimedTextTrackIndex_l(index);
+            if (ret != OK) {
+                break;
+            }
+            mPlayer->start();
+            break;
+        case STOPPED:
+            // TODO: The only difference between STOPPED and PAUSED is this
+            // part. Revise the flow from "MediaPlayer::enableTimedText()" and
+            // remove one of the status, PAUSED and STOPPED, if possible.
+            ret = setTimedTextTrackIndex_l(index);
+            if (ret != OK) {
+                break;
+            }
+            mPlayer->start();
+            break;
+        defaut:
+            TRESPASS();
+    }
+    return ret;
+}
+
+status_t TimedTextDriver::addInBandTextSource(
+        const sp<MediaSource>& mediaSource) {
+    sp<TimedTextSource> source =
+            TimedTextSource::CreateTimedTextSource(mediaSource);
+    if (source == NULL) {
+        return ERROR_UNSUPPORTED;
+    }
+    Mutex::Autolock autoLock(mLock);
+    mTextInBandVector.add(source);
+    if (mState == UNINITIALIZED) {
+        mState = STOPPED;
+    }
+    return OK;
+}
+
+status_t TimedTextDriver::addOutOfBandTextSource(
+        const Parcel &request) {
+    // TODO: Define "TimedTextSource::CreateFromURI(uri)"
+    // and move below lines there..?
+
+    // String values written in Parcel are UTF-16 values.
+    const String16 uri16 = request.readString16();
+    String8 uri = String8(request.readString16());
+
+    uri.toLower();
+    // To support local subtitle file only for now
+    if (strncasecmp("file://", uri.string(), 7)) {
+        return ERROR_UNSUPPORTED;
+    }
+    sp<DataSource> dataSource =
+            DataSource::CreateFromURI(uri);
+    if (dataSource == NULL) {
+        return ERROR_UNSUPPORTED;
+    }
+
+    sp<TimedTextSource> source;
+    if (uri.getPathExtension() == String8(".srt")) {
+        source = TimedTextSource::CreateTimedTextSource(
+                dataSource, TimedTextSource::OUT_OF_BAND_FILE_SRT);
+    }
+
+    if (source == NULL) {
+        return ERROR_UNSUPPORTED;
+    }
+
+    Mutex::Autolock autoLock(mLock);
+
+    mTextOutOfBandVector.add(source);
+    if (mState == UNINITIALIZED) {
+        mState = STOPPED;
+    }
+    return OK;
+}
+
+}  // namespace android
diff --git a/media/libstagefright/timedtext/TimedTextDriver.h b/media/libstagefright/timedtext/TimedTextDriver.h
new file mode 100644
index 0000000..efedb6e
--- /dev/null
+++ b/media/libstagefright/timedtext/TimedTextDriver.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2012 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 TIMED_TEXT_DRIVER_H_
+#define TIMED_TEXT_DRIVER_H_
+
+#include <media/stagefright/foundation/ABase.h> // for DISALLOW_* macro
+#include <utils/Errors.h> // for status_t
+#include <utils/RefBase.h>
+#include <utils/threads.h>
+
+namespace android {
+
+class ALooper;
+class MediaPlayerBase;
+class MediaSource;
+class Parcel;
+class TimedTextPlayer;
+class TimedTextSource;
+
+class TimedTextDriver {
+public:
+    TimedTextDriver(const wp<MediaPlayerBase> &listener);
+
+    ~TimedTextDriver();
+
+    // TODO: pause-resume pair seems equivalent to stop-start pair.
+    // Check if it is replaceable with stop-start.
+    status_t start();
+    status_t stop();
+    status_t pause();
+    status_t resume();
+
+    status_t seekToAsync(int64_t timeUs);
+
+    status_t addInBandTextSource(const sp<MediaSource>& source);
+    status_t addOutOfBandTextSource(const Parcel &request);
+
+    status_t setTimedTextTrackIndex(int32_t index);
+
+private:
+    Mutex mLock;
+
+    enum State {
+        UNINITIALIZED,
+        STOPPED,
+        PLAYING,
+        PAUSED,
+    };
+
+    sp<ALooper> mLooper;
+    sp<TimedTextPlayer> mPlayer;
+    wp<MediaPlayerBase> mListener;
+
+    // Variables to be guarded by mLock.
+    State mState;
+    Vector<sp<TimedTextSource> > mTextInBandVector;
+    Vector<sp<TimedTextSource> > mTextOutOfBandVector;
+    // -- End of variables to be guarded by mLock
+
+    status_t setTimedTextTrackIndex_l(int32_t index);
+
+    DISALLOW_EVIL_CONSTRUCTORS(TimedTextDriver);
+};
+
+}  // namespace android
+
+#endif  // TIMED_TEXT_DRIVER_H_
diff --git a/media/libstagefright/timedtext/TimedTextInBandSource.cpp b/media/libstagefright/timedtext/TimedTextInBandSource.cpp
new file mode 100644
index 0000000..f2c4d54
--- /dev/null
+++ b/media/libstagefright/timedtext/TimedTextInBandSource.cpp
@@ -0,0 +1,118 @@
+ /*
+ * Copyright (C) 2012 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 "TimedTextInBandSource"
+#include <utils/Log.h>
+
+#include <binder/Parcel.h>
+#include <media/stagefright/MediaBuffer.h>
+#include <media/stagefright/MediaDebug.h>  // CHECK_XX macro
+#include <media/stagefright/MediaDefs.h>  // for MEDIA_MIMETYPE_xxx
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/MediaSource.h>
+#include <media/stagefright/MetaData.h>
+
+#include "TimedTextInBandSource.h"
+#include "TextDescriptions.h"
+
+namespace android {
+
+TimedTextInBandSource::TimedTextInBandSource(const sp<MediaSource>& mediaSource)
+    : mSource(mediaSource) {
+}
+
+TimedTextInBandSource::~TimedTextInBandSource() {
+}
+
+status_t TimedTextInBandSource::read(
+        int64_t *timeUs, Parcel *parcel, const MediaSource::ReadOptions *options) {
+    MediaBuffer *textBuffer = NULL;
+    status_t err = mSource->read(&textBuffer, options);
+    if (err != OK) {
+        return err;
+    }
+    CHECK(textBuffer != NULL);
+    textBuffer->meta_data()->findInt64(kKeyTime, timeUs);
+    // TODO: this is legacy code. when 'timeUs' can be <= 0?
+    if (*timeUs > 0) {
+        extractAndAppendLocalDescriptions(*timeUs, textBuffer, parcel);
+    }
+    textBuffer->release();
+    return OK;
+}
+
+// Each text sample consists of a string of text, optionally with sample
+// modifier description. The modifier description could specify a new
+// text style for the string of text. These descriptions are present only
+// if they are needed. This method is used to extract the modifier
+// description and append it at the end of the text.
+status_t TimedTextInBandSource::extractAndAppendLocalDescriptions(
+        int64_t timeUs, const MediaBuffer *textBuffer, Parcel *parcel) {
+    const void *data;
+    size_t size = 0;
+    int32_t flag = TextDescriptions::LOCAL_DESCRIPTIONS;
+
+    const char *mime;
+    CHECK(mSource->getFormat()->findCString(kKeyMIMEType, &mime));
+
+    if (strcasecmp(mime, MEDIA_MIMETYPE_TEXT_3GPP) == 0) {
+        data = textBuffer->data();
+        size = textBuffer->size();
+
+        if (size > 0) {
+            parcel->freeData();
+            flag |= TextDescriptions::IN_BAND_TEXT_3GPP;
+            return TextDescriptions::getParcelOfDescriptions(
+                    (const uint8_t *)data, size, flag, timeUs / 1000, parcel);
+        }
+        return OK;
+    }
+    return ERROR_UNSUPPORTED;
+}
+
+// To extract and send the global text descriptions for all the text samples
+// in the text track or text file.
+// TODO: send error message to application via notifyListener()...?
+status_t TimedTextInBandSource::extractGlobalDescriptions(Parcel *parcel) {
+    const void *data;
+    size_t size = 0;
+    int32_t flag = TextDescriptions::GLOBAL_DESCRIPTIONS;
+
+    const char *mime;
+    CHECK(mSource->getFormat()->findCString(kKeyMIMEType, &mime));
+
+    // support 3GPP only for now
+    if (strcasecmp(mime, MEDIA_MIMETYPE_TEXT_3GPP) == 0) {
+        uint32_t type;
+        // get the 'tx3g' box content. This box contains the text descriptions
+        // used to render the text track
+        if (!mSource->getFormat()->findData(
+                kKeyTextFormatData, &type, &data, &size)) {
+            return ERROR_MALFORMED;
+        }
+
+        if (size > 0) {
+            flag |= TextDescriptions::IN_BAND_TEXT_3GPP;
+            return TextDescriptions::getParcelOfDescriptions(
+                    (const uint8_t *)data, size, flag, 0, parcel);
+        }
+        return OK;
+    }
+    return ERROR_UNSUPPORTED;
+}
+
+}  // namespace android
diff --git a/media/libstagefright/timedtext/TimedTextInBandSource.h b/media/libstagefright/timedtext/TimedTextInBandSource.h
new file mode 100644
index 0000000..26e5737
--- /dev/null
+++ b/media/libstagefright/timedtext/TimedTextInBandSource.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2012 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 TIMED_TEXT_IN_BAND_SOURCE_H_
+#define TIMED_TEXT_IN_BAND_SOURCE_H_
+
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/MediaSource.h>
+
+#include "TimedTextSource.h"
+
+namespace android {
+
+class MediaBuffer;
+class Parcel;
+
+class TimedTextInBandSource : public TimedTextSource {
+ public:
+  TimedTextInBandSource(const sp<MediaSource>& mediaSource);
+  virtual status_t start() { return mSource->start(); }
+  virtual status_t stop() { return mSource->stop(); }
+  virtual status_t read(
+          int64_t *timeUs,
+          Parcel *parcel,
+          const MediaSource::ReadOptions *options = NULL);
+  virtual status_t extractGlobalDescriptions(Parcel *parcel);
+
+ protected:
+  virtual ~TimedTextInBandSource();
+
+ private:
+  sp<MediaSource> mSource;
+
+  status_t extractAndAppendLocalDescriptions(
+        int64_t timeUs, const MediaBuffer *textBuffer, Parcel *parcel);
+
+  DISALLOW_EVIL_CONSTRUCTORS(TimedTextInBandSource);
+};
+
+}  // namespace android
+
+#endif  // TIMED_TEXT_IN_BAND_SOURCE_H_
diff --git a/media/libstagefright/timedtext/TimedTextParser.cpp b/media/libstagefright/timedtext/TimedTextParser.cpp
deleted file mode 100644
index caea0a4..0000000
--- a/media/libstagefright/timedtext/TimedTextParser.cpp
+++ /dev/null
@@ -1,262 +0,0 @@
-/*
- * Copyright (C) 2011 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.
- */
-
-#include "TimedTextParser.h"
-#include <media/stagefright/DataSource.h>
-
-namespace android {
-
-TimedTextParser::TimedTextParser()
-    : mDataSource(NULL),
-      mOffset(0),
-      mIndex(0) {
-}
-
-TimedTextParser::~TimedTextParser() {
-    reset();
-}
-
-status_t TimedTextParser::init(
-        const sp<DataSource> &dataSource, FileType fileType) {
-    mDataSource = dataSource;
-    mFileType = fileType;
-
-    status_t err;
-    if ((err = scanFile()) != OK) {
-        reset();
-        return err;
-    }
-
-    return OK;
-}
-
-void TimedTextParser::reset() {
-    mDataSource.clear();
-    mTextVector.clear();
-    mOffset = 0;
-    mIndex = 0;
-}
-
-// scan the text file to get start/stop time and the
-// offset of each piece of text content
-status_t TimedTextParser::scanFile() {
-    if (mFileType != OUT_OF_BAND_FILE_SRT) {
-        return ERROR_UNSUPPORTED;
-    }
-
-    off64_t offset = 0;
-    int64_t startTimeUs;
-    bool endOfFile = false;
-
-    while (!endOfFile) {
-        TextInfo info;
-        status_t err = getNextInSrtFileFormat(&offset, &startTimeUs, &info);
-
-        if (err != OK) {
-            if (err == ERROR_END_OF_STREAM) {
-                endOfFile = true;
-            } else {
-                return err;
-            }
-        } else {
-            mTextVector.add(startTimeUs, info);
-        }
-    }
-
-    if (mTextVector.isEmpty()) {
-        return ERROR_MALFORMED;
-    }
-    return OK;
-}
-
-// read one line started from *offset and store it into data.
-status_t TimedTextParser::readNextLine(off64_t *offset, AString *data) {
-    char character;
-
-    data->clear();
-
-    while (true) {
-        ssize_t err;
-        if ((err = mDataSource->readAt(*offset, &character, 1)) < 1) {
-            if (err == 0) {
-                return ERROR_END_OF_STREAM;
-            }
-            return ERROR_IO;
-        }
-
-        (*offset) ++;
-
-        // a line could end with CR, LF or CR + LF
-        if (character == 10) {
-            break;
-        } else if (character == 13) {
-            if ((err = mDataSource->readAt(*offset, &character, 1)) < 1) {
-                if (err == 0) { // end of the stream
-                    return OK;
-                }
-                return ERROR_IO;
-            }
-
-            (*offset) ++;
-
-            if (character != 10) {
-                (*offset) --;
-            }
-            break;
-        }
-
-        data->append(character);
-    }
-
-    return OK;
-}
-
-/* SRT format:
- *  Subtitle number
- *  Start time --> End time
- *  Text of subtitle (one or more lines)
- *  Blank lines
- *
- * .srt file example:
- *  1
- *  00:00:20,000 --> 00:00:24,400
- *  Altocumulus clouds occur between six thousand
- *
- *  2
- *  00:00:24,600 --> 00:00:27,800
- *  and twenty thousand feet above ground level.
- */
-status_t TimedTextParser::getNextInSrtFileFormat(
-        off64_t *offset, int64_t *startTimeUs, TextInfo *info) {
-    AString data;
-    status_t err;
-
-    // To skip blank lines.
-    do {
-        if ((err = readNextLine(offset, &data)) != OK) {
-            return err;
-        }
-        data.trim();
-    } while(data.empty());
-
-    // Just ignore the first non-blank line which is subtitle sequence number.
-
-    if ((err = readNextLine(offset, &data)) != OK) {
-        return err;
-    }
-    int hour1, hour2, min1, min2, sec1, sec2, msec1, msec2;
-    // the start time format is: hours:minutes:seconds,milliseconds
-    // 00:00:24,600 --> 00:00:27,800
-    if (sscanf(data.c_str(), "%02d:%02d:%02d,%03d --> %02d:%02d:%02d,%03d",
-                &hour1, &min1, &sec1, &msec1, &hour2, &min2, &sec2, &msec2) != 8) {
-        return ERROR_MALFORMED;
-    }
-
-    *startTimeUs = ((hour1 * 3600 + min1 * 60 + sec1) * 1000 + msec1) * 1000ll;
-    info->endTimeUs = ((hour2 * 3600 + min2 * 60 + sec2) * 1000 + msec2) * 1000ll;
-    if (info->endTimeUs <= *startTimeUs) {
-        return ERROR_MALFORMED;
-    }
-
-    info->offset = *offset;
-
-    bool needMoreData = true;
-    while (needMoreData) {
-        if ((err = readNextLine(offset, &data)) != OK) {
-            if (err == ERROR_END_OF_STREAM) {
-                needMoreData = false;
-            } else {
-                return err;
-            }
-        }
-
-        if (needMoreData) {
-            data.trim();
-            if (data.empty()) {
-                // it's an empty line used to separate two subtitles
-                needMoreData = false;
-            }
-        }
-    }
-
-    info->textLen = *offset - info->offset;
-
-    return OK;
-}
-
-status_t TimedTextParser::getText(
-        AString *text, int64_t *startTimeUs, int64_t *endTimeUs,
-        const MediaSource::ReadOptions *options) {
-    Mutex::Autolock autoLock(mLock);
-
-    text->clear();
-
-    int64_t seekTimeUs;
-    MediaSource::ReadOptions::SeekMode mode;
-    if (options && options->getSeekTo(&seekTimeUs, &mode)) {
-        int64_t lastEndTimeUs = mTextVector.valueAt(mTextVector.size() - 1).endTimeUs;
-        int64_t firstStartTimeUs = mTextVector.keyAt(0);
-
-        if (seekTimeUs < 0 || seekTimeUs > lastEndTimeUs) {
-            return ERROR_OUT_OF_RANGE;
-        } else if (seekTimeUs < firstStartTimeUs) {
-            mIndex = 0;
-        } else {
-            // binary search
-            ssize_t low = 0;
-            ssize_t high = mTextVector.size() - 1;
-            ssize_t mid = 0;
-            int64_t currTimeUs;
-
-            while (low <= high) {
-                mid = low + (high - low)/2;
-                currTimeUs = mTextVector.keyAt(mid);
-                const int diff = currTimeUs - seekTimeUs;
-
-                if (diff == 0) {
-                    break;
-                } else if (diff < 0) {
-                    low = mid + 1;
-                } else {
-                    if ((high == mid + 1)
-                            && (seekTimeUs < mTextVector.keyAt(high))) {
-                        break;
-                    }
-                    high = mid - 1;
-                }
-            }
-
-            mIndex = mid;
-        }
-    }
-
-    TextInfo info = mTextVector.valueAt(mIndex);
-    *startTimeUs = mTextVector.keyAt(mIndex);
-    *endTimeUs = info.endTimeUs;
-    mIndex ++;
-
-    char *str = new char[info.textLen];
-    if (mDataSource->readAt(info.offset, str, info.textLen) < info.textLen) {
-        delete[] str;
-        return ERROR_IO;
-    }
-
-    text->append(str, info.textLen);
-    delete[] str;
-    return OK;
-}
-
-}  // namespace android
diff --git a/media/libstagefright/timedtext/TimedTextParser.h b/media/libstagefright/timedtext/TimedTextParser.h
deleted file mode 100644
index 44774c2..0000000
--- a/media/libstagefright/timedtext/TimedTextParser.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright (C) 2011 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 TIMED_TEXT_PARSER_H_
-
-#define TIMED_TEXT_PARSER_H_
-
-#include <media/MediaPlayerInterface.h>
-#include <media/stagefright/foundation/ABase.h>
-#include <media/stagefright/foundation/AString.h>
-#include <media/stagefright/MediaSource.h>
-
-namespace android {
-
-class DataSource;
-
-class TimedTextParser : public RefBase {
-public:
-    TimedTextParser();
-    virtual ~TimedTextParser();
-
-    enum FileType {
-        OUT_OF_BAND_FILE_SRT = 1,
-    };
-
-    status_t getText(AString *text, int64_t *startTimeUs, int64_t *endTimeUs,
-                     const MediaSource::ReadOptions *options = NULL);
-    status_t init(const sp<DataSource> &dataSource, FileType fileType);
-    void reset();
-
-private:
-    Mutex mLock;
-
-    sp<DataSource> mDataSource;
-    off64_t mOffset;
-
-    struct TextInfo {
-        int64_t endTimeUs;
-        // the offset of the text in the original file
-        off64_t offset;
-        int textLen;
-    };
-
-    int mIndex;
-    FileType mFileType;
-
-    // the key indicated the start time of the text
-    KeyedVector<int64_t, TextInfo> mTextVector;
-
-    status_t getNextInSrtFileFormat(
-            off64_t *offset, int64_t *startTimeUs, TextInfo *info);
-    status_t readNextLine(off64_t *offset, AString *data);
-
-    status_t scanFile();
-
-    DISALLOW_EVIL_CONSTRUCTORS(TimedTextParser);
-};
-
-}  // namespace android
-
-#endif  // TIMED_TEXT_PARSER_H_
-
diff --git a/media/libstagefright/timedtext/TimedTextPlayer.cpp b/media/libstagefright/timedtext/TimedTextPlayer.cpp
index 3014b0b..8c2df88 100644
--- a/media/libstagefright/timedtext/TimedTextPlayer.cpp
+++ b/media/libstagefright/timedtext/TimedTextPlayer.cpp
@@ -1,5 +1,5 @@
  /*
- * Copyright (C) 2011 The Android Open Source Project
+ * Copyright (C) 2012 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.
@@ -18,399 +18,164 @@
 #define LOG_TAG "TimedTextPlayer"
 #include <utils/Log.h>
 
-#include <binder/IPCThreadState.h>
-
+#include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/MediaDebug.h>
-#include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
-#include <media/stagefright/MediaSource.h>
-#include <media/stagefright/MetaData.h>
-#include <media/stagefright/MediaBuffer.h>
-#include <media/stagefright/FileSource.h>
-#include <media/stagefright/Utils.h>
+#include <media/MediaPlayerInterface.h>
 
-#include "include/AwesomePlayer.h"
 #include "TimedTextPlayer.h"
-#include "TimedTextParser.h"
-#include "TextDescriptions.h"
+
+#include "TimedTextDriver.h"
+#include "TimedTextSource.h"
 
 namespace android {
 
-struct TimedTextEvent : public TimedEventQueue::Event {
-    TimedTextEvent(
-            TimedTextPlayer *player,
-            void (TimedTextPlayer::*method)())
-        : mPlayer(player),
-          mMethod(method) {
-    }
+static const int64_t kAdjustmentProcessingTimeUs = 100000ll;
 
-protected:
-    virtual ~TimedTextEvent() {}
-
-    virtual void fire(TimedEventQueue *queue, int64_t /* now_us */) {
-        (mPlayer->*mMethod)();
-    }
-
-private:
-    TimedTextPlayer *mPlayer;
-    void (TimedTextPlayer::*mMethod)();
-
-    TimedTextEvent(const TimedTextEvent &);
-    TimedTextEvent &operator=(const TimedTextEvent &);
-};
-
-TimedTextPlayer::TimedTextPlayer(
-        AwesomePlayer *observer,
-        const wp<MediaPlayerBase> &listener,
-        TimedEventQueue *queue)
-    : mSource(NULL),
-      mOutOfBandSource(NULL),
-      mSeekTimeUs(0),
-      mStarted(false),
-      mTextEventPending(false),
-      mQueue(queue),
-      mListener(listener),
-      mObserver(observer),
-      mTextBuffer(NULL),
-      mTextParser(NULL),
-      mTextType(kNoText) {
-    mTextEvent = new TimedTextEvent(this, &TimedTextPlayer::onTextEvent);
+TimedTextPlayer::TimedTextPlayer(const wp<MediaPlayerBase> &listener)
+    : mListener(listener),
+      mSource(NULL),
+      mSendSubtitleGeneration(0) {
 }
 
 TimedTextPlayer::~TimedTextPlayer() {
-    if (mStarted) {
-        reset();
+    if (mSource != NULL) {
+        mSource->stop();
+        mSource.clear();
+        mSource = NULL;
     }
-
-    mTextTrackVector.clear();
-    mTextOutOfBandVector.clear();
 }
 
-status_t TimedTextPlayer::start(uint8_t index) {
-    CHECK(!mStarted);
-
-    if (index >=
-            mTextTrackVector.size() + mTextOutOfBandVector.size()) {
-        ALOGE("Incorrect text track index: %d", index);
-        return BAD_VALUE;
-    }
-
-    status_t err;
-    if (index < mTextTrackVector.size()) { // start an in-band text
-        mSource = mTextTrackVector.itemAt(index);
-
-        err = mSource->start();
-
-        if (err != OK) {
-            return err;
-        }
-        mTextType = kInBandText;
-    } else { // start an out-of-band text
-        OutOfBandText text =
-            mTextOutOfBandVector.itemAt(index - mTextTrackVector.size());
-
-        mOutOfBandSource = text.source;
-        TimedTextParser::FileType fileType = text.type;
-
-        if (mTextParser == NULL) {
-            mTextParser = new TimedTextParser();
-        }
-
-        if ((err = mTextParser->init(mOutOfBandSource, fileType)) != OK) {
-            return err;
-        }
-        mTextType = kOutOfBandText;
-    }
-
-    // send sample description format
-    if ((err = extractAndSendGlobalDescriptions()) != OK) {
-        return err;
-    }
-
-    int64_t positionUs;
-    mObserver->getPosition(&positionUs);
-    seekTo(positionUs);
-
-    postTextEvent();
-
-    mStarted = true;
-
-    return OK;
+void TimedTextPlayer::start() {
+    sp<AMessage> msg = new AMessage(kWhatSeek, id());
+    msg->setInt64("seekTimeUs", -1);
+    msg->post();
 }
 
 void TimedTextPlayer::pause() {
-    CHECK(mStarted);
-
-    cancelTextEvent();
+    (new AMessage(kWhatPause, id()))->post();
 }
 
 void TimedTextPlayer::resume() {
-    CHECK(mStarted);
-
-    postTextEvent();
+    start();
 }
 
-void TimedTextPlayer::reset() {
-    CHECK(mStarted);
+void TimedTextPlayer::seekToAsync(int64_t timeUs) {
+    sp<AMessage> msg = new AMessage(kWhatSeek, id());
+    msg->setInt64("seekTimeUs", timeUs);
+    msg->post();
+}
 
-    // send an empty text to clear the screen
-    notifyListener(MEDIA_TIMED_TEXT);
+void TimedTextPlayer::setDataSource(sp<TimedTextSource> source) {
+    sp<AMessage> msg = new AMessage(kWhatSetSource, id());
+    msg->setObject("source", source);
+    msg->post();
+}
 
-    cancelTextEvent();
-
-    mSeeking = false;
-    mStarted = false;
-
-    if (mTextType == kInBandText) {
-        if (mTextBuffer != NULL) {
-            mTextBuffer->release();
-            mTextBuffer = NULL;
+void TimedTextPlayer::onMessageReceived(const sp<AMessage> &msg) {
+    switch (msg->what()) {
+        case kWhatPause: {
+            mSendSubtitleGeneration++;
+            break;
         }
-
-        if (mSource != NULL) {
-            mSource->stop();
-            mSource.clear();
-            mSource = NULL;
+        case kWhatSeek: {
+            int64_t seekTimeUs = 0;
+            msg->findInt64("seekTimeUs", &seekTimeUs);
+            if (seekTimeUs < 0) {
+                sp<MediaPlayerBase> listener = mListener.promote();
+                if (listener != NULL) {
+                    int32_t positionMs = 0;
+                    listener->getCurrentPosition(&positionMs);
+                    seekTimeUs = positionMs * 1000ll;
+                }
+            }
+            doSeekAndRead(seekTimeUs);
+            break;
         }
-    } else {
-        if (mTextParser != NULL) {
-            mTextParser.clear();
-            mTextParser = NULL;
+        case kWhatSendSubtitle: {
+            int32_t generation;
+            CHECK(msg->findInt32("generation", &generation));
+            if (generation != mSendSubtitleGeneration) {
+              // Drop obsolete msg.
+              break;
+            }
+            sp<RefBase> obj;
+            msg->findObject("subtitle", &obj);
+            if (obj != NULL) {
+                sp<ParcelEvent> parcelEvent;
+                parcelEvent = static_cast<ParcelEvent*>(obj.get());
+                notifyListener(MEDIA_TIMED_TEXT, &(parcelEvent->parcel));
+            } else {
+                notifyListener(MEDIA_TIMED_TEXT);
+            }
+            doRead();
+            break;
         }
-        if (mOutOfBandSource != NULL) {
-            mOutOfBandSource.clear();
-            mOutOfBandSource = NULL;
+        case kWhatSetSource: {
+            sp<RefBase> obj;
+            msg->findObject("source", &obj);
+            if (obj == NULL) break;
+            if (mSource != NULL) {
+                mSource->stop();
+            }
+            mSource = static_cast<TimedTextSource*>(obj.get());
+            mSource->start();
+            Parcel parcel;
+            if (mSource->extractGlobalDescriptions(&parcel) == OK &&
+                parcel.dataSize() > 0) {
+                notifyListener(MEDIA_TIMED_TEXT, &parcel);
+            } else {
+                notifyListener(MEDIA_TIMED_TEXT);
+            }
+            break;
         }
     }
 }
 
-status_t TimedTextPlayer::seekTo(int64_t time_us) {
-    Mutex::Autolock autoLock(mLock);
-
-    mSeeking = true;
-    mSeekTimeUs = time_us;
-
-    postTextEvent();
-
-    return OK;
-}
-
-status_t TimedTextPlayer::setTimedTextTrackIndex(int32_t index) {
-    if (index >=
-            (int)(mTextTrackVector.size() + mTextOutOfBandVector.size())) {
-        return BAD_VALUE;
-    }
-
-    if (mStarted) {
-        reset();
-    }
-
-    if (index >= 0) {
-        return start(index);
-    }
-    return OK;
-}
-
-void TimedTextPlayer::onTextEvent() {
-    Mutex::Autolock autoLock(mLock);
-
-    if (!mTextEventPending) {
-        return;
-    }
-    mTextEventPending = false;
-
-    if (mData.dataSize() > 0) {
-        notifyListener(MEDIA_TIMED_TEXT, &mData);
-        mData.freeData();
-    }
-
+void TimedTextPlayer::doSeekAndRead(int64_t seekTimeUs) {
     MediaSource::ReadOptions options;
-    if (mSeeking) {
-        options.setSeekTo(mSeekTimeUs,
-                MediaSource::ReadOptions::SEEK_PREVIOUS_SYNC);
-        mSeeking = false;
-
-        notifyListener(MEDIA_TIMED_TEXT); //empty text to clear the screen
-    }
-
-    int64_t positionUs, timeUs;
-    mObserver->getPosition(&positionUs);
-
-    if (mTextType == kInBandText) {
-        if (mSource->read(&mTextBuffer, &options) != OK) {
-            return;
-        }
-
-        mTextBuffer->meta_data()->findInt64(kKeyTime, &timeUs);
-    } else {
-        int64_t endTimeUs;
-        if (mTextParser->getText(
-                    &mText, &timeUs, &endTimeUs, &options) != OK) {
-            return;
-        }
-    }
-
-    if (timeUs > 0) {
-        extractAndAppendLocalDescriptions(timeUs);
-    }
-
-    if (mTextType == kInBandText) {
-        if (mTextBuffer != NULL) {
-            mTextBuffer->release();
-            mTextBuffer = NULL;
-        }
-    } else {
-        mText.clear();
-    }
-
-    //send the text now
-    if (timeUs <= positionUs + 100000ll) {
-        postTextEvent();
-    } else {
-        postTextEvent(timeUs - positionUs - 100000ll);
-    }
+    options.setSeekTo(seekTimeUs, MediaSource::ReadOptions::SEEK_PREVIOUS_SYNC);
+    doRead(&options);
 }
 
-void TimedTextPlayer::postTextEvent(int64_t delayUs) {
-    if (mTextEventPending) {
-        return;
-    }
-
-    mTextEventPending = true;
-    mQueue->postEventWithDelay(mTextEvent, delayUs < 0 ? 10000 : delayUs);
+void TimedTextPlayer::doRead(MediaSource::ReadOptions* options) {
+    int64_t timeUs = 0;
+    sp<ParcelEvent> parcelEvent = new ParcelEvent();
+    mSource->read(&timeUs, &(parcelEvent->parcel), options);
+    postTextEvent(parcelEvent, timeUs);
 }
 
-void TimedTextPlayer::cancelTextEvent() {
-    mQueue->cancelEvent(mTextEvent->eventID());
-    mTextEventPending = false;
-}
+void TimedTextPlayer::postTextEvent(const sp<ParcelEvent>& parcel, int64_t timeUs) {
+    sp<MediaPlayerBase> listener = mListener.promote();
+    if (listener != NULL) {
+        int64_t positionUs, delayUs;
+        int32_t positionMs = 0;
+        listener->getCurrentPosition(&positionMs);
+        positionUs = positionMs * 1000;
 
-void TimedTextPlayer::addTextSource(sp<MediaSource> source) {
-    Mutex::Autolock autoLock(mLock);
-    mTextTrackVector.add(source);
-}
-
-status_t TimedTextPlayer::setParameter(int key, const Parcel &request) {
-    Mutex::Autolock autoLock(mLock);
-
-    if (key == KEY_PARAMETER_TIMED_TEXT_ADD_OUT_OF_BAND_SOURCE) {
-        const String16 uri16 = request.readString16();
-        String8 uri = String8(uri16);
-        KeyedVector<String8, String8> headers;
-
-        // To support local subtitle file only for now
-        if (strncasecmp("file://", uri.string(), 7)) {
-            return INVALID_OPERATION;
-        }
-        sp<DataSource> dataSource =
-            DataSource::CreateFromURI(uri, &headers);
-        status_t err = dataSource->initCheck();
-
-        if (err != OK) {
-            return err;
-        }
-
-        OutOfBandText text;
-        text.source = dataSource;
-        if (uri.getPathExtension() == String8(".srt")) {
-            text.type = TimedTextParser::OUT_OF_BAND_FILE_SRT;
+        if (timeUs <= positionUs + kAdjustmentProcessingTimeUs) {
+            delayUs = 0;
         } else {
-            return ERROR_UNSUPPORTED;
+            delayUs = timeUs - positionUs - kAdjustmentProcessingTimeUs;
         }
-
-        mTextOutOfBandVector.add(text);
-
-        return OK;
+        sp<AMessage> msg = new AMessage(kWhatSendSubtitle, id());
+        msg->setInt32("generation", mSendSubtitleGeneration);
+        if (parcel != NULL) {
+            msg->setObject("subtitle", parcel);
+        }
+        msg->post(delayUs);
     }
-    return INVALID_OPERATION;
 }
 
 void TimedTextPlayer::notifyListener(int msg, const Parcel *parcel) {
-    if (mListener != NULL) {
-        sp<MediaPlayerBase> listener = mListener.promote();
-
-        if (listener != NULL) {
-            if (parcel && (parcel->dataSize() > 0)) {
-                listener->sendEvent(msg, 0, 0, parcel);
-            } else { // send an empty timed text to clear the screen
-                listener->sendEvent(msg);
-            }
+    sp<MediaPlayerBase> listener = mListener.promote();
+    if (listener != NULL) {
+        if (parcel != NULL && (parcel->dataSize() > 0)) {
+            listener->sendEvent(msg, 0, 0, parcel);
+        } else {  // send an empty timed text to clear the screen
+            listener->sendEvent(msg);
         }
     }
 }
 
-// Each text sample consists of a string of text, optionally with sample
-// modifier description. The modifier description could specify a new
-// text style for the string of text. These descriptions are present only
-// if they are needed. This method is used to extract the modifier
-// description and append it at the end of the text.
-status_t TimedTextPlayer::extractAndAppendLocalDescriptions(int64_t timeUs) {
-    const void *data;
-    size_t size = 0;
-    int32_t flag = TextDescriptions::LOCAL_DESCRIPTIONS;
-
-    if (mTextType == kInBandText) {
-        const char *mime;
-        CHECK(mSource->getFormat()->findCString(kKeyMIMEType, &mime));
-
-        if (!strcasecmp(mime, MEDIA_MIMETYPE_TEXT_3GPP)) {
-            flag |= TextDescriptions::IN_BAND_TEXT_3GPP;
-            data = mTextBuffer->data();
-            size = mTextBuffer->size();
-        } else {
-            // support 3GPP only for now
-            return ERROR_UNSUPPORTED;
-        }
-    } else {
-        data = mText.c_str();
-        size = mText.size();
-        flag |= TextDescriptions::OUT_OF_BAND_TEXT_SRT;
-    }
-
-    if ((size > 0) && (flag != TextDescriptions::LOCAL_DESCRIPTIONS)) {
-        mData.freeData();
-        return TextDescriptions::getParcelOfDescriptions(
-                (const uint8_t *)data, size, flag, timeUs / 1000, &mData);
-    }
-
-    return OK;
-}
-
-// To extract and send the global text descriptions for all the text samples
-// in the text track or text file.
-status_t TimedTextPlayer::extractAndSendGlobalDescriptions() {
-    const void *data;
-    size_t size = 0;
-    int32_t flag = TextDescriptions::GLOBAL_DESCRIPTIONS;
-
-    if (mTextType == kInBandText) {
-        const char *mime;
-        CHECK(mSource->getFormat()->findCString(kKeyMIMEType, &mime));
-
-        // support 3GPP only for now
-        if (!strcasecmp(mime, MEDIA_MIMETYPE_TEXT_3GPP)) {
-            uint32_t type;
-            // get the 'tx3g' box content. This box contains the text descriptions
-            // used to render the text track
-            if (!mSource->getFormat()->findData(
-                        kKeyTextFormatData, &type, &data, &size)) {
-                return ERROR_MALFORMED;
-            }
-
-            flag |= TextDescriptions::IN_BAND_TEXT_3GPP;
-        }
-    }
-
-    if ((size > 0) && (flag != TextDescriptions::GLOBAL_DESCRIPTIONS)) {
-        Parcel parcel;
-        if (TextDescriptions::getParcelOfDescriptions(
-                (const uint8_t *)data, size, flag, 0, &parcel) == OK) {
-            if (parcel.dataSize() > 0) {
-                notifyListener(MEDIA_TIMED_TEXT, &parcel);
-            }
-        }
-    }
-
-    return OK;
-}
-}
+}  // namespace android
diff --git a/media/libstagefright/timedtext/TimedTextPlayer.h b/media/libstagefright/timedtext/TimedTextPlayer.h
index a744db5..837beeb 100644
--- a/media/libstagefright/timedtext/TimedTextPlayer.h
+++ b/media/libstagefright/timedtext/TimedTextPlayer.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011 The Android Open Source Project
+ * Copyright (C) 2012 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.
@@ -15,99 +15,61 @@
  */
 
 #ifndef TIMEDTEXT_PLAYER_H_
-
 #define TIMEDTEXT_PLAYER_H_
 
-#include <media/MediaPlayerInterface.h>
+#include <binder/Parcel.h>
 #include <media/stagefright/foundation/ABase.h>
-#include <media/stagefright/foundation/AString.h>
+#include <media/stagefright/foundation/AHandler.h>
+#include <media/stagefright/MediaSource.h>
+#include <utils/RefBase.h>
 
-#include "include/TimedEventQueue.h"
-#include "TimedTextParser.h"
+#include "TimedTextSource.h"
 
 namespace android {
 
-class MediaSource;
-class AwesomePlayer;
-class MediaBuffer;
+class AMessage;
+class MediaPlayerBase;
+class TimedTextDriver;
+class TimedTextSource;
 
-class TimedTextPlayer {
+class TimedTextPlayer : public AHandler {
 public:
-    TimedTextPlayer(AwesomePlayer *observer,
-                    const wp<MediaPlayerBase> &listener,
-                    TimedEventQueue *queue);
+    TimedTextPlayer(const wp<MediaPlayerBase> &listener);
 
     virtual ~TimedTextPlayer();
 
-    // index: the index of the text track which will
-    // be turned on
-    status_t start(uint8_t index);
-
+    void start();
     void pause();
-
     void resume();
+    void seekToAsync(int64_t timeUs);
+    void setDataSource(sp<TimedTextSource> source);
 
-    status_t seekTo(int64_t time_us);
-
-    void addTextSource(sp<MediaSource> source);
-
-    status_t setTimedTextTrackIndex(int32_t index);
-    status_t setParameter(int key, const Parcel &request);
+protected:
+    virtual void onMessageReceived(const sp<AMessage> &msg);
 
 private:
-    enum TextType {
-        kNoText        = 0,
-        kInBandText    = 1,
-        kOutOfBandText = 2,
+    enum {
+        kWhatPause = 'paus',
+        kWhatSeek = 'seek',
+        kWhatSendSubtitle = 'send',
+        kWhatSetSource = 'ssrc',
     };
 
-    Mutex mLock;
-
-    sp<MediaSource> mSource;
-    sp<DataSource> mOutOfBandSource;
-
-    bool mSeeking;
-    int64_t mSeekTimeUs;
-
-    bool mStarted;
-
-    sp<TimedEventQueue::Event> mTextEvent;
-    bool mTextEventPending;
-
-    TimedEventQueue *mQueue;
+    // To add Parcel into an AMessage as an object, it should be 'RefBase'.
+    struct ParcelEvent : public RefBase {
+        Parcel parcel;
+    };
 
     wp<MediaPlayerBase> mListener;
-    AwesomePlayer *mObserver;
+    sp<TimedTextSource> mSource;
+    int32_t mSendSubtitleGeneration;
 
-    MediaBuffer *mTextBuffer;
-    Parcel mData;
-
-    // for in-band timed text
-    Vector<sp<MediaSource> > mTextTrackVector;
-
-    // for out-of-band timed text
-    struct OutOfBandText {
-        TimedTextParser::FileType type;
-        sp<DataSource> source;
-    };
-    Vector<OutOfBandText > mTextOutOfBandVector;
-
-    sp<TimedTextParser> mTextParser;
-    AString mText;
-
-    TextType mTextType;
-
-    void reset();
-
+    void doSeekAndRead(int64_t seekTimeUs);
+    void doRead(MediaSource::ReadOptions* options = NULL);
     void onTextEvent();
-    void postTextEvent(int64_t delayUs = -1);
-    void cancelTextEvent();
-
+    void postTextEvent(const sp<ParcelEvent>& parcel = NULL, int64_t timeUs = -1);
     void notifyListener(int msg, const Parcel *parcel = NULL);
 
-    status_t extractAndAppendLocalDescriptions(int64_t timeUs);
-    status_t extractAndSendGlobalDescriptions();
-
     DISALLOW_EVIL_CONSTRUCTORS(TimedTextPlayer);
 };
 
diff --git a/media/libstagefright/timedtext/TimedTextSRTSource.cpp b/media/libstagefright/timedtext/TimedTextSRTSource.cpp
new file mode 100644
index 0000000..3752d34
--- /dev/null
+++ b/media/libstagefright/timedtext/TimedTextSRTSource.cpp
@@ -0,0 +1,275 @@
+ /*
+ * Copyright (C) 2012 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 "TimedTextSRTSource"
+#include <utils/Log.h>
+
+#include <binder/Parcel.h>
+#include <media/stagefright/foundation/AString.h>
+#include <media/stagefright/DataSource.h>
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/MediaSource.h>
+
+#include "TimedTextSRTSource.h"
+#include "TextDescriptions.h"
+
+namespace android {
+
+TimedTextSRTSource::TimedTextSRTSource(const sp<DataSource>& dataSource)
+        : mSource(dataSource),
+          mIndex(0) {
+}
+
+TimedTextSRTSource::~TimedTextSRTSource() {
+}
+
+status_t TimedTextSRTSource::start() {
+    status_t err = scanFile();
+    if (err != OK) {
+        reset();
+    }
+    return err;
+}
+
+void TimedTextSRTSource::reset() {
+    mTextVector.clear();
+    mIndex = 0;
+}
+
+status_t TimedTextSRTSource::stop() {
+    reset();
+    return OK;
+}
+
+status_t TimedTextSRTSource::read(
+        int64_t *timeUs,
+        Parcel *parcel,
+        const MediaSource::ReadOptions *options) {
+    int64_t endTimeUs;
+    AString text;
+    status_t err = getText(options, &text, timeUs, &endTimeUs);
+    if (err != OK) {
+        return err;
+    }
+
+    if (*timeUs > 0) {
+        extractAndAppendLocalDescriptions(*timeUs, text, parcel);
+    }
+    return OK;
+}
+
+status_t TimedTextSRTSource::scanFile() {
+    off64_t offset = 0;
+    int64_t startTimeUs;
+    bool endOfFile = false;
+
+    while (!endOfFile) {
+        TextInfo info;
+        status_t err = getNextSubtitleInfo(&offset, &startTimeUs, &info);
+        switch (err) {
+            case OK:
+                mTextVector.add(startTimeUs, info);
+                break;
+            case ERROR_END_OF_STREAM:
+                endOfFile = true;
+                break;
+            default:
+                return err;
+        }
+    }
+    if (mTextVector.isEmpty()) {
+        return ERROR_MALFORMED;
+    }
+    return OK;
+}
+
+/* SRT format:
+ *   Subtitle number
+ *   Start time --> End time
+ *   Text of subtitle (one or more lines)
+ *   Blank lines
+ *
+ * .srt file example:
+ * 1
+ * 00:00:20,000 --> 00:00:24,400
+ * Altocumulus clouds occr between six thousand
+ *
+ * 2
+ * 00:00:24,600 --> 00:00:27,800
+ * and twenty thousand feet above ground level.
+ */
+status_t TimedTextSRTSource::getNextSubtitleInfo(
+          off64_t *offset, int64_t *startTimeUs, TextInfo *info) {
+    AString data;
+    status_t err;
+
+    // To skip blank lines.
+    do {
+        if ((err = readNextLine(offset, &data)) != OK) {
+            return err;
+        }
+        data.trim();
+    } while (data.empty());
+
+    // Just ignore the first non-blank line which is subtitle sequence number.
+    if ((err = readNextLine(offset, &data)) != OK) {
+        return err;
+    }
+    int hour1, hour2, min1, min2, sec1, sec2, msec1, msec2;
+    // the start time format is: hours:minutes:seconds,milliseconds
+    // 00:00:24,600 --> 00:00:27,800
+    if (sscanf(data.c_str(), "%02d:%02d:%02d,%03d --> %02d:%02d:%02d,%03d",
+               &hour1, &min1, &sec1, &msec1, &hour2, &min2, &sec2, &msec2) != 8) {
+        return ERROR_MALFORMED;
+    }
+
+    *startTimeUs = ((hour1 * 3600 + min1 * 60 + sec1) * 1000 + msec1) * 1000ll;
+    info->endTimeUs = ((hour2 * 3600 + min2 * 60 + sec2) * 1000 + msec2) * 1000ll;
+    if (info->endTimeUs <= *startTimeUs) {
+        return ERROR_MALFORMED;
+    }
+
+    info->offset = *offset;
+    bool needMoreData = true;
+    while (needMoreData) {
+        if ((err = readNextLine(offset, &data)) != OK) {
+            if (err == ERROR_END_OF_STREAM) {
+                needMoreData = false;
+            } else {
+                return err;
+            }
+        }
+
+        if (needMoreData) {
+            data.trim();
+            if (data.empty()) {
+                // it's an empty line used to separate two subtitles
+                needMoreData = false;
+            }
+        }
+    }
+    info->textLen = *offset - info->offset;
+    return OK;
+}
+
+status_t TimedTextSRTSource::readNextLine(off64_t *offset, AString *data) {
+    data->clear();
+    while (true) {
+        ssize_t readSize;
+        char character;
+        if ((readSize = mSource->readAt(*offset, &character, 1)) < 1) {
+            if (readSize == 0) {
+                return ERROR_END_OF_STREAM;
+            }
+            return ERROR_IO;
+        }
+
+        (*offset)++;
+
+        // a line could end with CR, LF or CR + LF
+        if (character == 10) {
+            break;
+        } else if (character == 13) {
+            if ((readSize = mSource->readAt(*offset, &character, 1)) < 1) {
+                if (readSize == 0) {  // end of the stream
+                    return OK;
+                }
+                return ERROR_IO;
+            }
+
+            (*offset)++;
+            if (character != 10) {
+                (*offset)--;
+            }
+            break;
+        }
+        data->append(character);
+    }
+    return OK;
+}
+
+status_t TimedTextSRTSource::getText(
+        const MediaSource::ReadOptions *options,
+        AString *text, int64_t *startTimeUs, int64_t *endTimeUs) {
+    text->clear();
+    int64_t seekTimeUs;
+    MediaSource::ReadOptions::SeekMode mode;
+    if (options != NULL && options->getSeekTo(&seekTimeUs, &mode)) {
+        int64_t lastEndTimeUs =
+                mTextVector.valueAt(mTextVector.size() - 1).endTimeUs;
+        int64_t firstStartTimeUs = mTextVector.keyAt(0);
+        if (seekTimeUs < 0 || seekTimeUs > lastEndTimeUs) {
+            return ERROR_OUT_OF_RANGE;
+        } else if (seekTimeUs < firstStartTimeUs) {
+            mIndex = 0;
+        } else {
+            // binary search
+            ssize_t low = 0;
+            ssize_t high = mTextVector.size() - 1;
+            ssize_t mid = 0;
+            int64_t currTimeUs;
+
+            while (low <= high) {
+                mid = low + (high - low)/2;
+                currTimeUs = mTextVector.keyAt(mid);
+                const int diff = currTimeUs - seekTimeUs;
+
+                if (diff == 0) {
+                    break;
+                } else if (diff < 0) {
+                    low = mid + 1;
+                } else {
+                    if ((high == mid + 1)
+                        && (seekTimeUs < mTextVector.keyAt(high))) {
+                        break;
+                    }
+                    high = mid - 1;
+                }
+            }
+            mIndex = mid;
+        }
+    }
+    const TextInfo &info = mTextVector.valueAt(mIndex);
+    *startTimeUs = mTextVector.keyAt(mIndex);
+    *endTimeUs = info.endTimeUs;
+    mIndex++;
+
+    char *str = new char[info.textLen];
+    if (mSource->readAt(info.offset, str, info.textLen) < info.textLen) {
+        delete[] str;
+        return ERROR_IO;
+    }
+    text->append(str, info.textLen);
+    delete[] str;
+    return OK;
+}
+
+status_t TimedTextSRTSource::extractAndAppendLocalDescriptions(
+        int64_t timeUs, const AString &text, Parcel *parcel) {
+    const void *data = text.c_str();
+    size_t size = text.size();
+    int32_t flag = TextDescriptions::LOCAL_DESCRIPTIONS |
+                   TextDescriptions::OUT_OF_BAND_TEXT_SRT;
+
+    if (size > 0) {
+        return TextDescriptions::getParcelOfDescriptions(
+                (const uint8_t *)data, size, flag, timeUs / 1000, parcel);
+    }
+    return OK;
+}
+
+}  // namespace android
diff --git a/media/libstagefright/timedtext/TimedTextSRTSource.h b/media/libstagefright/timedtext/TimedTextSRTSource.h
new file mode 100644
index 0000000..a0734d9
--- /dev/null
+++ b/media/libstagefright/timedtext/TimedTextSRTSource.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2012 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 TIMED_TEXT_SRT_SOURCE_H_
+#define TIMED_TEXT_SRT_SOURCE_H_
+
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/MediaSource.h>
+#include <utils/Compat.h>  // off64_t
+
+#include "TimedTextSource.h"
+
+namespace android {
+
+class AString;
+class DataSource;
+class MediaBuffer;
+class Parcel;
+
+class TimedTextSRTSource : public TimedTextSource {
+ public:
+  TimedTextSRTSource(const sp<DataSource>& dataSource);
+  virtual status_t start();
+  virtual status_t stop();
+  virtual status_t read(
+          int64_t *timeUs,
+          Parcel *parcel,
+          const MediaSource::ReadOptions *options = NULL);
+
+ protected:
+  virtual ~TimedTextSRTSource();
+
+ private:
+  sp<DataSource> mSource;
+
+  struct TextInfo {
+      int64_t endTimeUs;
+      // The offset of the text in the original file.
+      off64_t offset;
+      int textLen;
+  };
+
+  int mIndex;
+  KeyedVector<int64_t, TextInfo> mTextVector;
+
+  void reset();
+  status_t scanFile();
+  status_t getNextSubtitleInfo(
+          off64_t *offset, int64_t *startTimeUs, TextInfo *info);
+  status_t readNextLine(off64_t *offset, AString *data);
+  status_t getText(
+          const MediaSource::ReadOptions *options,
+          AString *text, int64_t *startTimeUs, int64_t *endTimeUs);
+  status_t extractAndAppendLocalDescriptions(
+          int64_t timeUs, const AString &text, Parcel *parcel);
+
+  DISALLOW_EVIL_CONSTRUCTORS(TimedTextSRTSource);
+};
+
+}  // namespace android
+
+#endif  // TIMED_TEXT_SRT_SOURCE_H_
diff --git a/media/libstagefright/timedtext/TimedTextSource.cpp b/media/libstagefright/timedtext/TimedTextSource.cpp
new file mode 100644
index 0000000..9efe67c
--- /dev/null
+++ b/media/libstagefright/timedtext/TimedTextSource.cpp
@@ -0,0 +1,53 @@
+ /*
+ * Copyright (C) 2012 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 "TimedTextSource"
+#include <utils/Log.h>
+
+#include <media/stagefright/DataSource.h>
+#include <media/stagefright/MediaSource.h>
+
+#include "TimedTextSource.h"
+
+#include "TimedTextInBandSource.h"
+#include "TimedTextSRTSource.h"
+
+namespace android {
+
+// static
+sp<TimedTextSource> TimedTextSource::CreateTimedTextSource(
+        const sp<MediaSource>& mediaSource) {
+    return new TimedTextInBandSource(mediaSource);
+}
+
+// static
+sp<TimedTextSource> TimedTextSource::CreateTimedTextSource(
+        const sp<DataSource>& dataSource, FileType filetype) {
+    switch(filetype) {
+        case OUT_OF_BAND_FILE_SRT:
+            return new TimedTextSRTSource(dataSource);
+        case OUT_OF_BAND_FILE_SMI:
+            // TODO: Implement for SMI.
+            ALOGE("Supporting SMI is not implemented yet");
+            break;
+        default:
+            ALOGE("Undefined subtitle format. : %d", filetype);
+    }
+    return NULL;
+}
+
+}  // namespace android
diff --git a/media/libstagefright/timedtext/TimedTextSource.h b/media/libstagefright/timedtext/TimedTextSource.h
new file mode 100644
index 0000000..06bae71
--- /dev/null
+++ b/media/libstagefright/timedtext/TimedTextSource.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2012 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 TIMED_TEXT_SOURCE_H_
+#define TIMED_TEXT_SOURCE_H_
+
+#include <media/stagefright/foundation/ABase.h>  // for DISALLOW_XXX macro.
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/MediaSource.h>  // for MediaSource::ReadOptions
+#include <utils/RefBase.h>
+
+namespace android {
+
+class DataSource;
+class Parcel;
+
+class TimedTextSource : public RefBase {
+ public:
+  enum FileType {
+      OUT_OF_BAND_FILE_SRT = 1,
+      OUT_OF_BAND_FILE_SMI = 2,
+  };
+  static sp<TimedTextSource> CreateTimedTextSource(
+      const sp<MediaSource>& source);
+  static sp<TimedTextSource> CreateTimedTextSource(
+      const sp<DataSource>& source, FileType filetype);
+  TimedTextSource() {}
+  virtual status_t start() = 0;
+  virtual status_t stop() = 0;
+  // Returns subtitle parcel and its start time.
+  virtual status_t read(
+          int64_t *timeUs,
+          Parcel *parcel,
+          const MediaSource::ReadOptions *options = NULL) = 0;
+  virtual status_t extractGlobalDescriptions(Parcel *parcel) {
+      return INVALID_OPERATION;
+  }
+
+ protected:
+  virtual ~TimedTextSource() { }
+
+ private:
+  DISALLOW_EVIL_CONSTRUCTORS(TimedTextSource);
+};
+
+}  // namespace android
+
+#endif  // TIMED_TEXT_SOURCE_H_
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index fea3063..a43afac 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -1743,7 +1743,7 @@
 
     // FIXME - Current mixer implementation only supports stereo output: Always
     // Allocate a stereo buffer even if HW output is mono.
-    if (mMixBuffer != NULL) delete[] mMixBuffer;
+    delete[] mMixBuffer;
     mMixBuffer = new int16_t[mFrameCount * 2];
     memset(mMixBuffer, 0, mFrameCount * 2 * sizeof(int16_t));
 
@@ -1811,7 +1811,7 @@
 }
 
 
-AudioFlinger::AudioStreamOut* AudioFlinger::PlaybackThread::getOutput()
+AudioFlinger::AudioStreamOut* AudioFlinger::PlaybackThread::getOutput() const
 {
     Mutex::Autolock _l(mLock);
     return mOutput;
@@ -1869,7 +1869,7 @@
 bool AudioFlinger::MixerThread::threadLoop()
 {
     Vector< sp<Track> > tracksToRemove;
-    uint32_t mixerStatus = MIXER_IDLE;
+    mixer_state mixerStatus = MIXER_IDLE;
     nsecs_t standbyTime = systemTime();
     size_t mixBufferSize = mFrameCount * mFrameSize;
     // FIXME: Relaxed timing because of a certain device that can't meet latency
@@ -2088,10 +2088,11 @@
 }
 
 // prepareTracks_l() must be called with ThreadBase::mLock held
-uint32_t AudioFlinger::MixerThread::prepareTracks_l(const SortedVector< wp<Track> >& activeTracks, Vector< sp<Track> > *tracksToRemove)
+AudioFlinger::PlaybackThread::mixer_state AudioFlinger::MixerThread::prepareTracks_l(
+        const SortedVector< wp<Track> >& activeTracks, Vector< sp<Track> > *tracksToRemove)
 {
 
-    uint32_t mixerStatus = MIXER_IDLE;
+    mixer_state mixerStatus = MIXER_IDLE;
     // find out which tracks need to be processed
     size_t count = activeTracks.size();
     size_t mixedTracks = 0;
@@ -2195,7 +2196,7 @@
                 // read original volumes with volume control
                 float typeVolume = mStreamTypes[track->type()].volume;
                 float v = masterVolume * typeVolume;
-                uint32_t vlr = cblk->volumeLR;
+                uint32_t vlr = cblk->getVolumeLR();
                 vl = vlr & 0xFFFF;
                 vr = vlr >> 16;
                 // track volumes come from shared memory, so can't be trusted and must be clamped
@@ -2463,6 +2464,8 @@
             }
             if (status == NO_ERROR && reconfig) {
                 delete mAudioMixer;
+                // for safety in case readOutputParameters() accesses mAudioMixer (it doesn't)
+                mAudioMixer = NULL;
                 readOutputParameters();
                 mAudioMixer = new AudioMixer(mFrameCount, mSampleRate);
                 for (size_t i = 0; i < mTracks.size() ; i++) {
@@ -2614,7 +2617,7 @@
 
 bool AudioFlinger::DirectOutputThread::threadLoop()
 {
-    uint32_t mixerStatus = MIXER_IDLE;
+    mixer_state mixerStatus = MIXER_IDLE;
     sp<Track> trackToRemove;
     sp<Track> activeTrack;
     nsecs_t standbyTime = systemTime();
@@ -2730,7 +2733,7 @@
                     } else {
                         float typeVolume = mStreamTypes[track->type()].volume;
                         float v = mMasterVolume * typeVolume;
-                        uint32_t vlr = cblk->volumeLR;
+                        uint32_t vlr = cblk->getVolumeLR();
                         float v_clamped = v * (vlr & 0xFFFF);
                         if (v_clamped > MAX_GAIN) v_clamped = MAX_GAIN;
                         left = v_clamped/MAX_GAIN;
@@ -3012,7 +3015,7 @@
 bool AudioFlinger::DuplicatingThread::threadLoop()
 {
     Vector< sp<Track> > tracksToRemove;
-    uint32_t mixerStatus = MIXER_IDLE;
+    mixer_state mixerStatus = MIXER_IDLE;
     nsecs_t standbyTime = systemTime();
     size_t mixBufferSize = mFrameCount*mFrameSize;
     SortedVector< sp<OutputTrack> > outputTracks;
@@ -3470,7 +3473,7 @@
 
 void AudioFlinger::PlaybackThread::Track::dump(char* buffer, size_t size)
 {
-    uint32_t vlr = mCblk->volumeLR;
+    uint32_t vlr = mCblk->getVolumeLR();
     snprintf(buffer, size, "   %05d %05d %03u %03u 0x%08x %05u   %04u %1d %1d %1d %05u %05u %05u  0x%08x 0x%08x 0x%08x 0x%08x\n",
             mName - AudioMixer::TRACK0,
             (mClient == NULL) ? getpid() : mClient->pid(),
@@ -3552,7 +3555,7 @@
     sp<ThreadBase> thread = mThread.promote();
     if (thread != 0) {
         Mutex::Autolock _l(thread->mLock);
-        int state = mState;
+        track_state state = mState;
         // here the track could be either new, or restarted
         // in both cases "unstop" the track
         if (mState == PAUSED) {
@@ -3593,7 +3596,7 @@
     sp<ThreadBase> thread = mThread.promote();
     if (thread != 0) {
         Mutex::Autolock _l(thread->mLock);
-        int state = mState;
+        track_state state = mState;
         if (mState > STOPPED) {
             mState = STOPPED;
             // If the track is not active (PAUSED and buffers full), flush buffers
@@ -3829,7 +3832,6 @@
     if (mCblk != NULL) {
         mCblk->flags |= CBLK_DIRECTION_OUT;
         mCblk->buffers = (char*)mCblk + sizeof(audio_track_cblk_t);
-        mCblk->volumeLR = (MAX_GAIN_INT << 16) | MAX_GAIN_INT;
         mOutBuffer.frameCount = 0;
         playbackThread->mTracks.add(this);
         ALOGV("OutputTrack constructor mCblk %p, mBuffer %p, mCblk->buffers %p, " \
@@ -4067,7 +4069,7 @@
     mAudioFlinger->removeClient_l(mPid);
 }
 
-const sp<MemoryDealer>& AudioFlinger::Client::heap() const
+sp<MemoryDealer> AudioFlinger::Client::heap() const
 {
     return mMemoryDealer;
 }
@@ -4110,6 +4112,10 @@
     mTrack->destroy();
 }
 
+sp<IMemory> AudioFlinger::TrackHandle::getCblk() const {
+    return mTrack->getCblk();
+}
+
 status_t AudioFlinger::TrackHandle::start() {
     return mTrack->start();
 }
@@ -4130,10 +4136,6 @@
     mTrack->pause();
 }
 
-sp<IMemory> AudioFlinger::TrackHandle::getCblk() const {
-    return mTrack->getCblk();
-}
-
 status_t AudioFlinger::TrackHandle::attachAuxEffect(int EffectId)
 {
     return mTrack->attachAuxEffect(EffectId);
@@ -4240,6 +4242,10 @@
     stop();
 }
 
+sp<IMemory> AudioFlinger::RecordHandle::getCblk() const {
+    return mRecordTrack->getCblk();
+}
+
 status_t AudioFlinger::RecordHandle::start() {
     ALOGV("RecordHandle::start()");
     return mRecordTrack->start();
@@ -4250,10 +4256,6 @@
     mRecordTrack->stop();
 }
 
-sp<IMemory> AudioFlinger::RecordHandle::getCblk() const {
-    return mRecordTrack->getCblk();
-}
-
 status_t AudioFlinger::RecordHandle::onTransact(
     uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
 {
@@ -4282,10 +4284,8 @@
 AudioFlinger::RecordThread::~RecordThread()
 {
     delete[] mRsmpInBuffer;
-    if (mResampler != NULL) {
-        delete mResampler;
-        delete[] mRsmpOutBuffer;
-    }
+    delete mResampler;
+    delete[] mRsmpOutBuffer;
 }
 
 void AudioFlinger::RecordThread::onFirstRef()
@@ -4829,9 +4829,11 @@
 
 void AudioFlinger::RecordThread::readInputParameters()
 {
-    if (mRsmpInBuffer) delete mRsmpInBuffer;
-    if (mRsmpOutBuffer) delete mRsmpOutBuffer;
-    if (mResampler) delete mResampler;
+    delete mRsmpInBuffer;
+    // mRsmpInBuffer is always assigned a new[] below
+    delete mRsmpOutBuffer;
+    mRsmpOutBuffer = NULL;
+    delete mResampler;
     mResampler = NULL;
 
     mSampleRate = mInput->stream->common.get_sample_rate(&mInput->stream->common);
@@ -4898,7 +4900,7 @@
     return mTrack;
 }
 
-AudioFlinger::AudioStreamIn* AudioFlinger::RecordThread::getInput()
+AudioFlinger::AudioStreamIn* AudioFlinger::RecordThread::getInput() const
 {
     Mutex::Autolock _l(mLock);
     return mInput;
@@ -5046,6 +5048,7 @@
 
     if (thread->type() != ThreadBase::DUPLICATING) {
         AudioStreamOut *out = thread->clearOutput();
+        assert(out != NULL);
         // from now on thread->mOutput is NULL
         out->hwDev->close_output_stream(out->hwDev, out->stream);
         delete out;
@@ -5187,6 +5190,7 @@
     thread->exit();
 
     AudioStreamIn *in = thread->clearInput();
+    assert(in != NULL);
     // from now on thread->mInput is NULL
     in->hwDev->close_input_stream(in->hwDev, in->stream);
     delete in;
@@ -6177,7 +6181,7 @@
     }
 }
 
-status_t AudioFlinger::EffectModule::addHandle(sp<EffectHandle>& handle)
+status_t AudioFlinger::EffectModule::addHandle(const sp<EffectHandle>& handle)
 {
     status_t status;
 
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 9711003..76beeaf 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -226,7 +226,7 @@
     public:
                             Client(const sp<AudioFlinger>& audioFlinger, pid_t pid);
         virtual             ~Client();
-        const sp<MemoryDealer>&     heap() const;
+        sp<MemoryDealer>    heap() const;
         pid_t               pid() const { return mPid; }
         sp<AudioFlinger>    audioFlinger() { return mAudioFlinger; }
 
@@ -375,7 +375,7 @@
             void*               mBufferEnd;
             uint32_t            mFrameCount;
             // we don't really need a lock for these
-            int                 mState;
+            track_state         mState;
             int                 mClientTid;
             audio_format_t      mFormat;
             uint32_t            mFlags;
@@ -728,7 +728,7 @@
                                     int sessionId,
                                     status_t *status);
 
-                    AudioStreamOut* getOutput();
+                    AudioStreamOut* getOutput() const;
                     AudioStreamOut* clearOutput();
                     virtual audio_stream_t* stream();
 
@@ -805,7 +805,7 @@
         SortedVector< sp<Track> >       mTracks;
         // mStreamTypes[] uses 1 additional stream type internally for the OutputTrack used by DuplicatingThread
         stream_type_t                   mStreamTypes[AUDIO_STREAM_CNT + 1];
-        AudioStreamOut*                 mOutput;
+        AudioStreamOut                  *mOutput;
         float                           mMasterVolume;
         nsecs_t                         mLastWriteTime;
         int                             mNumWrites;
@@ -830,7 +830,7 @@
         virtual     status_t    dumpInternals(int fd, const Vector<String16>& args);
 
     protected:
-                    uint32_t    prepareTracks_l(const SortedVector< wp<Track> >& activeTracks,
+                    mixer_state prepareTracks_l(const SortedVector< wp<Track> >& activeTracks,
                                                 Vector< sp<Track> > *tracksToRemove);
         virtual     int         getTrackName_l();
         virtual     void        deleteTrackName_l(int name);
@@ -838,8 +838,7 @@
         virtual     uint32_t    suspendSleepTimeUs();
 
                     AudioMixer* mAudioMixer;
-                    uint32_t    mPrevMixerStatus; // previous status (mixer_state) returned by
-                                                  // prepareTracks_l()
+                    mixer_state mPrevMixerStatus; // previous status returned by prepareTracks_l()
     };
 
     class DirectOutputThread : public PlaybackThread {
@@ -910,12 +909,12 @@
     public:
                             TrackHandle(const sp<PlaybackThread::Track>& track);
         virtual             ~TrackHandle();
+        virtual sp<IMemory> getCblk() const;
         virtual status_t    start();
         virtual void        stop();
         virtual void        flush();
         virtual void        mute(bool);
         virtual void        pause();
-        virtual sp<IMemory> getCblk() const;
         virtual status_t    attachAuxEffect(int effectId);
         virtual status_t onTransact(
             uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags);
@@ -996,7 +995,7 @@
                 status_t    start(RecordTrack* recordTrack);
                 void        stop(RecordTrack* recordTrack);
                 status_t    dump(int fd, const Vector<String16>& args);
-                AudioStreamIn* getInput();
+                AudioStreamIn* getInput() const;
                 AudioStreamIn* clearInput();
                 virtual audio_stream_t* stream();
 
@@ -1033,9 +1032,9 @@
     public:
         RecordHandle(const sp<RecordThread::RecordTrack>& recordTrack);
         virtual             ~RecordHandle();
+        virtual sp<IMemory> getCblk() const;
         virtual status_t    start();
         virtual void        stop();
-        virtual sp<IMemory> getCblk() const;
         virtual status_t onTransact(
             uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags);
     private:
@@ -1089,7 +1088,7 @@
         void reset_l();
         status_t configure();
         status_t init();
-        uint32_t state() {
+        effect_state state() const {
             return mState;
         }
         uint32_t status() {
@@ -1110,7 +1109,7 @@
         void        setThread(const wp<ThreadBase>& thread) { mThread = thread; }
         wp<ThreadBase>& thread() { return mThread; }
 
-        status_t addHandle(sp<EffectHandle>& handle);
+        status_t addHandle(const sp<EffectHandle>& handle);
         void disconnect(const wp<EffectHandle>& handle, bool unpiniflast);
         size_t removeHandle (const wp<EffectHandle>& handle);
 
@@ -1154,8 +1153,8 @@
         effect_descriptor_t mDescriptor;// effect descriptor received from effect engine
         effect_config_t     mConfig;    // input and output audio configuration
         effect_handle_t  mEffectInterface; // Effect module C API
-        status_t mStatus;               // initialization status
-        uint32_t mState;                // current activation state (effect_state)
+        status_t            mStatus;    // initialization status
+        effect_state        mState;     // current activation state
         Vector< wp<EffectHandle> > mHandles;    // list of client handles
         uint32_t mMaxDisableWaitCnt;    // maximum grace period before forcing an effect off after
                                         // sending disable command.
@@ -1359,17 +1358,21 @@
         KeyedVector< int, sp<SuspendedEffectDesc> > mSuspendedEffects;
     };
 
+    // AudioStreamOut and AudioStreamIn are immutable, so their fields are const.
+    // For emphasis, we could also make all pointers to them be "const *",
+    // but that would clutter the code unnecessarily.
+
     struct AudioStreamOut {
-        audio_hw_device_t   *hwDev;
-        audio_stream_out_t  *stream;
+        audio_hw_device_t*  const hwDev;
+        audio_stream_out_t* const stream;
 
         AudioStreamOut(audio_hw_device_t *dev, audio_stream_out_t *out) :
             hwDev(dev), stream(out) {}
     };
 
     struct AudioStreamIn {
-        audio_hw_device_t   *hwDev;
-        audio_stream_in_t   *stream;
+        audio_hw_device_t* const hwDev;
+        audio_stream_in_t* const stream;
 
         AudioStreamIn(audio_hw_device_t *dev, audio_stream_in_t *in) :
             hwDev(dev), stream(in) {}
diff --git a/services/audioflinger/AudioMixer.cpp b/services/audioflinger/AudioMixer.cpp
index a8102e5..a01c6a8 100644
--- a/services/audioflinger/AudioMixer.cpp
+++ b/services/audioflinger/AudioMixer.cpp
@@ -1127,9 +1127,7 @@
         }
     }
 
-    if (buff != NULL) {
-        delete [] buff;
-    }
+    delete [] buff;
 }
 #endif
 
diff --git a/services/audioflinger/AudioPolicyService.cpp b/services/audioflinger/AudioPolicyService.cpp
index 28b1c89..7695d2b 100644
--- a/services/audioflinger/AudioPolicyService.cpp
+++ b/services/audioflinger/AudioPolicyService.cpp
@@ -287,7 +287,7 @@
     mpAudioPolicy->release_output(mpAudioPolicy, output);
 }
 
-audio_io_handle_t AudioPolicyService::getInput(int inputSource,
+audio_io_handle_t AudioPolicyService::getInput(audio_source_t inputSource,
                                     uint32_t samplingRate,
                                     audio_format_t format,
                                     uint32_t channels,
@@ -297,6 +297,10 @@
     if (mpAudioPolicy == NULL) {
         return 0;
     }
+    // already checked by client, but double-check in case the client wrapper is bypassed
+    if (uint32_t(inputSource) >= AUDIO_SOURCE_CNT) {
+        return 0;
+    }
     Mutex::Autolock _l(mLock);
     audio_io_handle_t input = mpAudioPolicy->get_input(mpAudioPolicy, inputSource, samplingRate,
                                                        format, channels, acoustics);
@@ -305,7 +309,7 @@
         return input;
     }
     // create audio pre processors according to input source
-    ssize_t index = mInputSources.indexOfKey((audio_source_t)inputSource);
+    ssize_t index = mInputSources.indexOfKey(inputSource);
     if (index < 0) {
         return input;
     }
@@ -645,7 +649,7 @@
         release_wake_lock(mName.string());
     }
     mAudioCommands.clear();
-    if (mpToneGenerator != NULL) delete mpToneGenerator;
+    delete mpToneGenerator;
 }
 
 void AudioPolicyService::AudioCommandThread::onFirstRef()
@@ -678,8 +682,7 @@
                     ToneData *data = (ToneData *)command->mParam;
                     ALOGV("AudioCommandThread() processing start tone %d on stream %d",
                             data->mType, data->mStream);
-                    if (mpToneGenerator != NULL)
-                        delete mpToneGenerator;
+                    delete mpToneGenerator;
                     mpToneGenerator = new ToneGenerator(data->mStream, 1.0);
                     mpToneGenerator->startTone(data->mType);
                     delete data;
diff --git a/services/audioflinger/AudioPolicyService.h b/services/audioflinger/AudioPolicyService.h
index 9811670..3c0f5ed 100644
--- a/services/audioflinger/AudioPolicyService.h
+++ b/services/audioflinger/AudioPolicyService.h
@@ -74,7 +74,7 @@
                                 audio_stream_type_t stream,
                                 int session = 0);
     virtual void releaseOutput(audio_io_handle_t output);
-    virtual audio_io_handle_t getInput(int inputSource,
+    virtual audio_io_handle_t getInput(audio_source_t inputSource,
                                     uint32_t samplingRate = 0,
                                     audio_format_t format = AUDIO_FORMAT_DEFAULT,
                                     uint32_t channels = 0,