Merge "Squashed commit of the following:"
diff --git a/include/media/mediarecorder.h b/include/media/mediarecorder.h
index a710546..67d940b 100644
--- a/include/media/mediarecorder.h
+++ b/include/media/mediarecorder.h
@@ -104,35 +104,62 @@
 };
 
 /*
- * The state machine of the media_recorder uses a set of different state names.
- * The mapping between the media_recorder and the pvauthorengine is shown below:
- *
- *    mediarecorder                        pvauthorengine
- * ----------------------------------------------------------------
- *    MEDIA_RECORDER_ERROR                 ERROR
- *    MEDIA_RECORDER_IDLE                  IDLE
- *    MEDIA_RECORDER_INITIALIZED           OPENED
- *    MEDIA_RECORDER_DATASOURCE_CONFIGURED
- *    MEDIA_RECORDER_PREPARED              INITIALIZED
- *    MEDIA_RECORDER_RECORDING             RECORDING
+ * The state machine of the media_recorder.
  */
 enum media_recorder_states {
+    // Error state.
     MEDIA_RECORDER_ERROR                 =      0,
+
+    // Recorder was just created.
     MEDIA_RECORDER_IDLE                  = 1 << 0,
+
+    // Recorder has been initialized.
     MEDIA_RECORDER_INITIALIZED           = 1 << 1,
+
+    // Configuration of the recorder has been completed.
     MEDIA_RECORDER_DATASOURCE_CONFIGURED = 1 << 2,
+
+    // Recorder is ready to start.
     MEDIA_RECORDER_PREPARED              = 1 << 3,
+
+    // Recording is in progress.
     MEDIA_RECORDER_RECORDING             = 1 << 4,
 };
 
 // The "msg" code passed to the listener in notify.
 enum media_recorder_event_type {
+    MEDIA_RECORDER_EVENT_LIST_START               = 1,
     MEDIA_RECORDER_EVENT_ERROR                    = 1,
-    MEDIA_RECORDER_EVENT_INFO                     = 2
+    MEDIA_RECORDER_EVENT_INFO                     = 2,
+    MEDIA_RECORDER_EVENT_LIST_END                 = 99,
+
+    // Track related event types
+    MEDIA_RECORDER_TRACK_EVENT_LIST_START         = 100,
+    MEDIA_RECORDER_TRACK_EVENT_ERROR              = 100,
+    MEDIA_RECORDER_TRACK_EVENT_INFO               = 101,
+    MEDIA_RECORDER_TRACK_EVENT_LIST_END           = 1000,
 };
 
+/*
+ * The (part of) "what" code passed to the listener in notify.
+ * When the error or info type is track specific, the what has
+ * the following layout:
+ * the left-most 16-bit is meant for error or info type.
+ * the right-most 4-bit is meant for track id.
+ * the rest is reserved.
+ *
+ * | track id | reserved |     error or info type     |
+ * 31         28         16                           0
+ *
+ */
 enum media_recorder_error_type {
-    MEDIA_RECORDER_ERROR_UNKNOWN                  = 1
+    MEDIA_RECORDER_ERROR_UNKNOWN                   = 1,
+
+    // Track related error type
+    MEDIA_RECORDER_TRACK_ERROR_LIST_START          = 100,
+    MEDIA_RECORDER_TRACK_ERROR_GENERAL             = 100,
+    MEDIA_RECORDER_ERROR_VIDEO_NO_SYNC_FRAME       = 200,
+    MEDIA_RECORDER_TRACK_ERROR_LIST_END            = 1000,
 };
 
 // The codes are distributed as follow:
@@ -141,11 +168,15 @@
 //
 enum media_recorder_info_type {
     MEDIA_RECORDER_INFO_UNKNOWN                   = 1,
+
     MEDIA_RECORDER_INFO_MAX_DURATION_REACHED      = 800,
     MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED      = 801,
-    MEDIA_RECORDER_INFO_COMPLETION_STATUS         = 802,
-    MEDIA_RECORDER_INFO_PROGRESS_FRAME_STATUS     = 803,
-    MEDIA_RECORDER_INFO_PROGRESS_TIME_STATUS      = 804,
+
+    // All track related informtional events start here
+    MEDIA_RECORDER_TRACK_INFO_LIST_START           = 1000,
+    MEDIA_RECORDER_TRACK_INFO_COMPLETION_STATUS    = 1000,
+    MEDIA_RECORDER_TRACK_INFO_PROGRESS_IN_TIME     = 1001,
+    MEDIA_RECORDER_TRACK_INFO_LIST_END             = 2000,
 };
 
 // ----------------------------------------------------------------------------
diff --git a/include/media/stagefright/MPEG4Writer.h b/include/media/stagefright/MPEG4Writer.h
index 5c5229d..15f86ea 100644
--- a/include/media/stagefright/MPEG4Writer.h
+++ b/include/media/stagefright/MPEG4Writer.h
@@ -157,7 +157,7 @@
     bool use32BitFileOffset() const;
     bool exceedsFileDurationLimit();
     bool isFileStreamable() const;
-    void trackProgressStatus(const Track* track, int64_t timeUs, status_t err = OK);
+    void trackProgressStatus(size_t trackId, int64_t timeUs, status_t err = OK);
     void writeCompositionMatrix(int32_t degrees);
 
     MPEG4Writer(const MPEG4Writer &);
diff --git a/media/libmedia/AudioRecord.cpp b/media/libmedia/AudioRecord.cpp
index a18bedb..cee1c75 100644
--- a/media/libmedia/AudioRecord.cpp
+++ b/media/libmedia/AudioRecord.cpp
@@ -722,9 +722,12 @@
     // Manage overrun callback
     if (mActive && (cblk->framesAvailable() == 0)) {
         LOGV("Overrun user: %x, server: %x, flags %04x", cblk->user, cblk->server, cblk->flags);
+        AutoMutex _l(cblk->lock);
         if ((cblk->flags & CBLK_UNDERRUN_MSK) == CBLK_UNDERRUN_OFF) {
-            mCbf(EVENT_OVERRUN, mUserData, 0);
             cblk->flags |= CBLK_UNDERRUN_ON;
+            cblk->lock.unlock();
+            mCbf(EVENT_OVERRUN, mUserData, 0);
+            cblk->lock.lock();
         }
     }
 
diff --git a/media/libmedia/AudioTrack.cpp b/media/libmedia/AudioTrack.cpp
index 8d8f67b..02e1570 100644
--- a/media/libmedia/AudioTrack.cpp
+++ b/media/libmedia/AudioTrack.cpp
@@ -329,6 +329,7 @@
     if (mActive == 0) {
         mActive = 1;
         mNewPosition = cblk->server + mUpdatePeriod;
+        cblk->lock.lock();
         cblk->bufferTimeoutMs = MAX_STARTUP_TIMEOUT_MS;
         cblk->waitTimeMs = 0;
         cblk->flags &= ~CBLK_DISABLED_ON;
@@ -339,7 +340,6 @@
         }
 
         LOGV("start %p before lock cblk %p", this, mCblk);
-        cblk->lock.lock();
         if (!(cblk->flags & CBLK_INVALID_MSK)) {
             cblk->lock.unlock();
             status = mAudioTrack->start();
@@ -893,9 +893,14 @@
 
     // restart track if it was disabled by audioflinger due to previous underrun
     if (mActive && (cblk->flags & CBLK_DISABLED_MSK)) {
-        cblk->flags &= ~CBLK_DISABLED_ON;
-        LOGW("obtainBuffer() track %p disabled, restarting", this);
-        mAudioTrack->start();
+        AutoMutex _l(cblk->lock);
+        if (mActive && (cblk->flags & CBLK_DISABLED_MSK)) {
+            cblk->flags &= ~CBLK_DISABLED_ON;
+            cblk->lock.unlock();
+            LOGW("obtainBuffer() track %p disabled, restarting", this);
+            mAudioTrack->start();
+            cblk->lock.lock();
+        }
     }
 
     cblk->waitTimeMs = 0;
@@ -957,9 +962,10 @@
     ssize_t written = 0;
     const int8_t *src = (const int8_t *)buffer;
     Buffer audioBuffer;
+    size_t frameSz = (size_t)frameSize();
 
     do {
-        audioBuffer.frameCount = userSize/frameSize();
+        audioBuffer.frameCount = userSize/frameSz;
 
         // Calling obtainBuffer() with a negative wait count causes
         // an (almost) infinite wait time.
@@ -991,7 +997,7 @@
         written += toWrite;
 
         releaseBuffer(&audioBuffer);
-    } while (userSize);
+    } while (userSize >= frameSz);
 
     return written;
 }
@@ -1015,12 +1021,15 @@
     // Manage underrun callback
     if (mActive && (cblk->framesReady() == 0)) {
         LOGV("Underrun user: %x, server: %x, flags %04x", cblk->user, cblk->server, cblk->flags);
+        AutoMutex _l(cblk->lock);
         if ((cblk->flags & CBLK_UNDERRUN_MSK) == CBLK_UNDERRUN_OFF) {
+            cblk->flags |= CBLK_UNDERRUN_ON;
+            cblk->lock.unlock();
             mCbf(EVENT_UNDERRUN, mUserData, 0);
             if (cblk->server == cblk->frameCount) {
                 mCbf(EVENT_BUFFER_END, mUserData, 0);
             }
-            cblk->flags |= CBLK_UNDERRUN_ON;
+            cblk->lock.lock();
             if (mSharedBuffer != 0) return false;
         }
     }
@@ -1279,7 +1288,12 @@
     this->user = u;
 
     // Clear flow control error condition as new data has been written/read to/from buffer.
-    flags &= ~CBLK_UNDERRUN_MSK;
+    if (flags & CBLK_UNDERRUN_MSK) {
+        AutoMutex _l(lock);
+        if (flags & CBLK_UNDERRUN_MSK) {
+            flags &= ~CBLK_UNDERRUN_MSK;
+        }
+    }
 
     return u;
 }
diff --git a/media/libstagefright/AMRWriter.cpp b/media/libstagefright/AMRWriter.cpp
index 0db3d1d..69846eb 100644
--- a/media/libstagefright/AMRWriter.cpp
+++ b/media/libstagefright/AMRWriter.cpp
@@ -269,7 +269,7 @@
     }
 
     if (stoppedPrematurely) {
-        notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_COMPLETION_STATUS, UNKNOWN_ERROR);
+        notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_TRACK_INFO_COMPLETION_STATUS, UNKNOWN_ERROR);
     }
 
     close(mFd);
diff --git a/media/libstagefright/AwesomePlayer.cpp b/media/libstagefright/AwesomePlayer.cpp
index 7a00d7a..35bc0b8 100644
--- a/media/libstagefright/AwesomePlayer.cpp
+++ b/media/libstagefright/AwesomePlayer.cpp
@@ -876,6 +876,17 @@
              cropLeft, cropTop, cropRight, cropBottom);
     }
 
+    int32_t displayWidth;
+    if (meta->findInt32(kKeyDisplayWidth, &displayWidth)) {
+        LOGV("Display width changed (%d=>%d)", mDisplayWidth, displayWidth);
+        mDisplayWidth = displayWidth;
+    }
+    int32_t displayHeight;
+    if (meta->findInt32(kKeyDisplayHeight, &displayHeight)) {
+        LOGV("Display height changed (%d=>%d)", mDisplayHeight, displayHeight);
+        mDisplayHeight = displayHeight;
+    }
+
     int32_t usableWidth = cropRight - cropLeft + 1;
     int32_t usableHeight = cropBottom - cropTop + 1;
     if (mDisplayWidth != 0) {
diff --git a/media/libstagefright/MPEG4Writer.cpp b/media/libstagefright/MPEG4Writer.cpp
index 5d6ea7c..edf76b5 100644
--- a/media/libstagefright/MPEG4Writer.cpp
+++ b/media/libstagefright/MPEG4Writer.cpp
@@ -52,7 +52,7 @@
 
 class MPEG4Writer::Track {
 public:
-    Track(MPEG4Writer *owner, const sp<MediaSource> &source);
+    Track(MPEG4Writer *owner, const sp<MediaSource> &source, size_t trackId);
 
     ~Track();
 
@@ -82,6 +82,7 @@
     bool mIsAvc;
     bool mIsAudio;
     bool mIsMPEG4;
+    int32_t mTrackId;
     int64_t mTrackDurationUs;
 
     // For realtime applications, we need to adjust the media clock
@@ -295,7 +296,12 @@
 }
 
 status_t MPEG4Writer::addSource(const sp<MediaSource> &source) {
-    Track *track = new Track(this, source);
+    Mutex::Autolock l(mLock);
+    if (mStarted) {
+        LOGE("Attempt to add source AFTER recording is started");
+        return UNKNOWN_ERROR;
+    }
+    Track *track = new Track(this, source, mTracks.size());
     mTracks.push_back(track);
 
     return OK;
@@ -945,7 +951,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 MPEG4Writer::Track::Track(
-        MPEG4Writer *owner, const sp<MediaSource> &source)
+        MPEG4Writer *owner, const sp<MediaSource> &source, size_t trackId)
     : mOwner(owner),
       mMeta(source->getFormat()),
       mSource(source),
@@ -953,6 +959,7 @@
       mPaused(false),
       mResumed(false),
       mStarted(false),
+      mTrackId(trackId),
       mTrackDurationUs(0),
       mEstimatedTrackSizeBytes(0),
       mSamplesHaveSameSize(true),
@@ -2030,7 +2037,7 @@
         (OK != checkCodecSpecificData())) {          // no codec specific data
         err = ERROR_MALFORMED;
     }
-    mOwner->trackProgressStatus(this, -1, err);
+    mOwner->trackProgressStatus(mTrackId, -1, err);
 
     // Last chunk
     if (mOwner->numTracks() == 1) {
@@ -2077,41 +2084,34 @@
     if (mTrackEveryTimeDurationUs > 0 &&
         timeUs - mPreviousTrackTimeUs >= mTrackEveryTimeDurationUs) {
         LOGV("Fire time tracking progress status at %lld us", timeUs);
-        mOwner->trackProgressStatus(this, timeUs - mPreviousTrackTimeUs, err);
+        mOwner->trackProgressStatus(mTrackId, timeUs - mPreviousTrackTimeUs, err);
         mPreviousTrackTimeUs = timeUs;
     }
 }
 
 void MPEG4Writer::trackProgressStatus(
-        const MPEG4Writer::Track* track, int64_t timeUs, status_t err) {
+        size_t trackId, int64_t timeUs, status_t err) {
     Mutex::Autolock lock(mLock);
-    int32_t nTracks = mTracks.size();
-    CHECK(nTracks >= 1);
-    CHECK(nTracks < 64);  // Arbitrary number
-
-    int32_t trackNum = 0;
-    CHECK(trackNum < nTracks);
-    trackNum <<= 16;
+    int32_t trackNum = (trackId << 28);
 
     // Error notification
     // Do not consider ERROR_END_OF_STREAM an error
     if (err != OK && err != ERROR_END_OF_STREAM) {
-        notify(MEDIA_RECORDER_EVENT_ERROR,
-               trackNum | MEDIA_RECORDER_ERROR_UNKNOWN,
+        notify(MEDIA_RECORDER_TRACK_EVENT_ERROR,
+               trackNum | MEDIA_RECORDER_TRACK_ERROR_GENERAL,
                err);
         return;
     }
 
     if (timeUs == -1) {
         // Send completion notification
-        notify(MEDIA_RECORDER_EVENT_INFO,
-               trackNum | MEDIA_RECORDER_INFO_COMPLETION_STATUS,
+        notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
+               trackNum | MEDIA_RECORDER_TRACK_INFO_COMPLETION_STATUS,
                err);
-        return;
     } else {
         // Send progress status
-        notify(MEDIA_RECORDER_EVENT_INFO,
-               trackNum | MEDIA_RECORDER_INFO_PROGRESS_TIME_STATUS,
+        notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
+               trackNum | MEDIA_RECORDER_TRACK_INFO_PROGRESS_IN_TIME,
                timeUs / 1000);
     }
 }
diff --git a/media/libstagefright/OMXCodec.cpp b/media/libstagefright/OMXCodec.cpp
index 3e26a95..a6a34b3 100644
--- a/media/libstagefright/OMXCodec.cpp
+++ b/media/libstagefright/OMXCodec.cpp
@@ -2215,13 +2215,15 @@
 
             if (data2 == 0 || data2 == OMX_IndexParamPortDefinition) {
                 onPortSettingsChanged(data1);
-            } else if (data1 == kPortIndexOutput
-                    && data2 == OMX_IndexConfigCommonOutputCrop) {
+            } else if (data1 == kPortIndexOutput &&
+                        (data2 == OMX_IndexConfigCommonOutputCrop ||
+                         data2 == OMX_IndexConfigCommonScale)) {
 
                 sp<MetaData> oldOutputFormat = mOutputFormat;
                 initOutputFormat(mSource->getFormat());
 
-                if (formatHasNotablyChanged(oldOutputFormat, mOutputFormat)) {
+                if (data2 == OMX_IndexConfigCommonOutputCrop &&
+                    formatHasNotablyChanged(oldOutputFormat, mOutputFormat)) {
                     mOutputPortSettingsHaveChanged = true;
 
                     if (mNativeWindow != NULL) {
@@ -2240,6 +2242,39 @@
                         // already invalid, we'll know soon enough.
                         native_window_set_crop(mNativeWindow.get(), &crop);
                     }
+                } else if (data2 == OMX_IndexConfigCommonScale) {
+                    OMX_CONFIG_SCALEFACTORTYPE scale;
+                    InitOMXParams(&scale);
+                    scale.nPortIndex = kPortIndexOutput;
+
+                    // Change display dimension only when necessary.
+                    if (OK == mOMX->getConfig(
+                                        mNode,
+                                        OMX_IndexConfigCommonScale,
+                                        &scale, sizeof(scale))) {
+                        int32_t left, top, right, bottom;
+                        CHECK(mOutputFormat->findRect(kKeyCropRect,
+                                                      &left, &top,
+                                                      &right, &bottom));
+
+                        // The scale is in 16.16 format.
+                        // scale 1.0 = 0x010000. When there is no
+                        // need to change the display, skip it.
+                        LOGV("Get OMX_IndexConfigScale: 0x%lx/0x%lx",
+                                scale.xWidth, scale.xHeight);
+
+                        if (scale.xWidth != 0x010000) {
+                            mOutputFormat->setInt32(kKeyDisplayWidth,
+                                    ((right - left +  1) * scale.xWidth)  >> 16);
+                            mOutputPortSettingsHaveChanged = true;
+                        }
+
+                        if (scale.xHeight != 0x010000) {
+                            mOutputFormat->setInt32(kKeyDisplayHeight,
+                                    ((bottom  - top + 1) * scale.xHeight) >> 16);
+                            mOutputPortSettingsHaveChanged = true;
+                        }
+                    }
                 }
             }
             break;
diff --git a/media/libstagefright/codecs/avc/dec/AVCDecoder.cpp b/media/libstagefright/codecs/avc/dec/AVCDecoder.cpp
index 5bbba35..490129f 100644
--- a/media/libstagefright/codecs/avc/dec/AVCDecoder.cpp
+++ b/media/libstagefright/codecs/avc/dec/AVCDecoder.cpp
@@ -534,7 +534,8 @@
             default:
             {
                 LOGE("Should not be here, unknown nalType %d", nalType);
-                CHECK(!"Should not be here");
+
+                err = ERROR_MALFORMED;
                 break;
             }
         }
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 2b08ab5..2702242 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -1738,7 +1738,10 @@
                     LOGV("BUFFER TIMEOUT: remove(%d) from active list on thread %p", track->name(), this);
                     tracksToRemove->add(track);
                     // indicate to client process that the track was disabled because of underrun
-                    cblk->flags |= CBLK_DISABLED_ON;
+                    {
+                        AutoMutex _l(cblk->lock);
+                        cblk->flags |= CBLK_DISABLED_ON;
+                    }
                 } else if (mixerStatus != MIXER_TRACKS_READY) {
                     mixerStatus = MIXER_TRACKS_ENABLED;
                 }
@@ -1787,10 +1790,9 @@
     for (size_t i = 0; i < size; i++) {
         sp<Track> t = mTracks[i];
         if (t->type() == streamType) {
-            t->mCblk->lock.lock();
+            AutoMutex _lcblk(t->mCblk->lock);
             t->mCblk->flags |= CBLK_INVALID_ON;
             t->mCblk->cv.signal();
-            t->mCblk->lock.unlock();
         }
     }
 }
@@ -2948,6 +2950,7 @@
 
     if (mCblk->framesReady() >= mCblk->frameCount ||
             (mCblk->flags & CBLK_FORCEREADY_MSK)) {
+        AutoMutex _l(mCblk->lock);
         mFillingUpStatus = FS_FILLED;
         mCblk->flags &= ~CBLK_FORCEREADY_MSK;
         return true;
@@ -3063,19 +3066,18 @@
         // STOPPED state
         mState = STOPPED;
 
-        mCblk->lock.lock();
         // NOTE: reset() will reset cblk->user and cblk->server with
         // the risk that at the same time, the AudioMixer is trying to read
         // data. In this case, getNextBuffer() would return a NULL pointer
         // as audio buffer => the AudioMixer code MUST always test that pointer
         // returned by getNextBuffer() is not NULL!
         reset();
-        mCblk->lock.unlock();
     }
 }
 
 void AudioFlinger::PlaybackThread::Track::reset()
 {
+    AutoMutex _l(mCblk->lock);
     // Do not reset twice to avoid discarding data written just after a flush and before
     // the audioflinger thread detects the track is stopped.
     if (!mResetDone) {
@@ -3209,10 +3211,13 @@
     if (thread != 0) {
         RecordThread *recordThread = (RecordThread *)thread.get();
         recordThread->stop(this);
-        TrackBase::reset();
-        // Force overerrun condition to avoid false overrun callback until first data is
-        // read from buffer
-        mCblk->flags |= CBLK_UNDERRUN_ON;
+        {
+            AutoMutex _l(mCblk->lock);
+            TrackBase::reset();
+            // Force overerrun condition to avoid false overrun callback until first data is
+            // read from buffer
+            mCblk->flags |= CBLK_UNDERRUN_ON;
+        }
     }
 }