提交: 2a0d685ed62ff7a5e5a40be0748860c092165984 - frameworks-base (git)

frameworks/base

Commit MetaInfo

• 修订版: 2a0d685ed62ff7a5e5a40be0748860c092165984 (tree)
• 时间: 2012-03-17 06:58:21
• 作者: Eric Laurent <elaurent@goog...>
• Commiter: Android (Google) Code Review

Log Message

Merge "MediaPlayerService: fix AudioSink latency" into ics-mr1

更改概述

• modified: media/libmediaplayerservice/MediaPlayerService.cpp
• modified: media/libmediaplayerservice/MediaPlayerService.h
• modified: media/libstagefright/AudioPlayer.cpp

差异

--- a/media/libmediaplayerservice/MediaPlayerService.cpp
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -320,7 +320,7 @@ status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& a
             mStreamType, mLeftVolume, mRightVolume);
     result.append(buffer);
     snprintf(buffer, 255, "  msec per frame(%f), latency (%d)\n",
-            mMsecsPerFrame, mLatency);
+            mMsecsPerFrame, (mTrack != 0) ? mTrack->latency() : -1);
     result.append(buffer);
     snprintf(buffer, 255, "  aux effect id(%d), send level (%f)\n",
             mAuxEffectId, mSendLevel);
@@ -1265,7 +1265,6 @@ MediaPlayerService::AudioOutput::AudioOutput(int sessionId)
     mStreamType = AUDIO_STREAM_MUSIC;
     mLeftVolume = 1.0;
     mRightVolume = 1.0;
-    mLatency = 0;
     mMsecsPerFrame = 0;
     mAuxEffectId = 0;
     mSendLevel = 0.0;
@@ -1324,7 +1323,8 @@ ssize_t MediaPlayerService::AudioOutput::frameSize() const
 
 uint32_t MediaPlayerService::AudioOutput::latency () const
 {
-    return mLatency;
+    if (mTrack == 0) return 0;
+    return mTrack->latency();
 }
 
 float MediaPlayerService::AudioOutput::msecsPerFrame() const
@@ -1403,7 +1403,6 @@ status_t MediaPlayerService::AudioOutput::open(
     t->setVolume(mLeftVolume, mRightVolume);
 
     mMsecsPerFrame = 1.e3 / (float) sampleRate;
-    mLatency = t->latency();
     mTrack = t;
 
     t->setAuxEffectSendLevel(mSendLevel);

--- a/media/libmediaplayerservice/MediaPlayerService.h
+++ b/media/libmediaplayerservice/MediaPlayerService.h
@@ -112,7 +112,6 @@ class MediaPlayerService : public BnMediaPlayerService
         float                   mLeftVolume;
         float                   mRightVolume;
         float                   mMsecsPerFrame;
-        uint32_t                mLatency;
         int                     mSessionId;
         float                   mSendLevel;
         int                     mAuxEffectId;

--- a/media/libstagefright/AudioPlayer.cpp
+++ b/media/libstagefright/AudioPlayer.cpp
@@ -408,6 +408,12 @@ size_t AudioPlayer::fillBuffer(void *data, size_t size) {
                 break;
             }
 
+            if (mAudioSink != NULL) {
+                mLatencyUs = (int64_t)mAudioSink->latency() * 1000;
+            } else {
+                mLatencyUs = (int64_t)mAudioTrack->latency() * 1000;
+            }
+
             CHECK(mInputBuffer->meta_data()->findInt64(
                         kKeyTime, &mPositionTimeMediaUs));