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Bug 1128411. Part 2 - call SendStreamData() in AdvanceFrame() to simplify the code of SendStreamData(). r=roc.

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This commit is contained in:
JW Wang 2015-02-02 13:58:31 +08:00
parent 026fbc7563
commit 0f9f43e40f
1 changed files with 16 additions and 40 deletions
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56
dom/media/MediaDecoderStateMachine.cpp
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@ -394,29 +394,12 @@ static void WriteVideoToMediaStream(MediaStream* aStream,
void MediaDecoderStateMachine::SendStreamData()
{
NS_ASSERTION(OnDecodeThread() || OnStateMachineThread(),
"Should be on decode thread or state machine thread");
MOZ_ASSERT(OnStateMachineThread(), "Should be on state machine thread");
AssertCurrentThreadInMonitor();
MOZ_ASSERT(mState != DECODER_STATE_DECODING_NONE);
MOZ_ASSERT(!mAudioSink, "Should've been stopped in CallRunStateMachine()");
DecodedStreamData* stream = mDecoder->GetDecodedStream();
if (!stream) {
return;
}
if (mState == DECODER_STATE_DECODING_METADATA ||
mState == DECODER_STATE_DECODING_FIRSTFRAME) {
return;
}
// If there's still an audio sink alive, then we can't send any stream
// data yet since both SendStreamData and the audio sink want to be in
// charge of popping the audio queue. We're waiting for the audio sink
if (mAudioSink) {
return;
}
int64_t minLastAudioPacketTime = INT64_MAX;
bool finished =
(!mInfo.HasAudio() || AudioQueue().IsFinished()) &&
(!mInfo.HasVideo() || VideoQueue().IsFinished());
@ -582,12 +565,6 @@ bool MediaDecoderStateMachine::HaveEnoughDecodedAudio(int64_t aAmpleAudioUSecs)
DecodedStreamData* stream = mDecoder->GetDecodedStream();
// Since stream is initialized in SendStreamData() which is called when
// audio/video samples are received, we need to keep decoding to ensure
// the stream is initialized.
if (stream && !stream->mStreamInitialized) {
return false;
}
if (stream && stream->mStreamInitialized && !stream->mHaveSentFinishAudio) {
if (!stream->mStream->HaveEnoughBuffered(kAudioTrack)) {
return false;
@ -609,10 +586,6 @@ bool MediaDecoderStateMachine::HaveEnoughDecodedVideo()
DecodedStreamData* stream = mDecoder->GetDecodedStream();
if (stream && !stream->mStreamInitialized) {
return false;
}
if (stream && stream->mStreamInitialized && !stream->mHaveSentFinishVideo) {
if (!stream->mStream->HaveEnoughBuffered(kVideoTrack)) {
return false;
@ -824,6 +797,10 @@ MediaDecoderStateMachine::OnAudioDecoded(AudioData* aAudioSample)
if (mIsAudioPrerolling && DonePrerollingAudio()) {
StopPrerollingAudio();
}
// Schedule the state machine to send stream data as soon as possible.
if (mAudioCaptured) {
ScheduleStateMachine();
}
return;
}
@ -880,7 +857,6 @@ MediaDecoderStateMachine::Push(AudioData* aSample)
// to reach playing.
AudioQueue().Push(aSample);
if (mState > DECODER_STATE_DECODING_FIRSTFRAME) {
SendStreamData();
// The ready state can change when we've decoded data, so update the
// ready state, so that DOM events can fire.
UpdateReadyState();
@ -898,7 +874,6 @@ MediaDecoderStateMachine::Push(VideoData* aSample)
// to reach playing.
VideoQueue().Push(aSample);
if (mState > DECODER_STATE_DECODING_FIRSTFRAME) {
SendStreamData();
// The ready state can change when we've decoded data, so update the
// ready state, so that DOM events can fire.
UpdateReadyState();
@ -970,11 +945,14 @@ MediaDecoderStateMachine::OnNotDecoded(MediaData::Type aType,
case DECODER_STATE_BUFFERING:
case DECODER_STATE_DECODING: {
CheckIfDecodeComplete();
SendStreamData();
// The ready state can change when we've decoded data, so update the
// ready state, so that DOM events can fire.
UpdateReadyState();
mDecoder->GetReentrantMonitor().NotifyAll();
// Schedule the state machine to notify track ended as soon as possible.
if (mAudioCaptured) {
ScheduleStateMachine();
}
return;
}
case DECODER_STATE_SEEKING: {
@ -1072,6 +1050,11 @@ MediaDecoderStateMachine::OnVideoDecoded(VideoData* aVideoSample)
DECODER_LOG("Slow video decode, set mLowAudioThresholdUsecs=%lld mAmpleAudioThresholdUsecs=%lld",
mLowAudioThresholdUsecs, mAmpleAudioThresholdUsecs);
}
// Schedule the state machine to send stream data as soon as possible.
if (mAudioCaptured) {
ScheduleStateMachine();
}
return;
}
case DECODER_STATE_SEEKING: {
@ -1848,9 +1831,6 @@ void MediaDecoderStateMachine::StopAudioThread()
mAudioSink->Shutdown();
}
mAudioSink = nullptr;
// Now that the audio sink is dead, try sending data to our MediaStream(s).
// That may have been waiting for the audio thread to stop.
SendStreamData();
}
// Wake up those waiting for audio sink to finish.
mDecoder->GetReentrantMonitor().NotifyAll();
@ -3101,11 +3081,7 @@ void MediaDecoderStateMachine::AdvanceFrame()
return;
}
DecodedStreamData* stream = mDecoder->GetDecodedStream();
if (stream && !stream->mStreamInitialized) {
// Output streams exist but are not initialized yet.
// Send the data we already have to allow stream clock to progress and
// avoid stalling playback.
if (mAudioCaptured) {
SendStreamData();
}