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Bug 1051658 - Part 1: Handle AudioSink init failure in MediaDecoderStateMachine. r=kinetik

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This commit is contained in:
JW Wang 2014-09-29 17:42:00 -04:00
parent fab9a78ca6
commit 6f34e2ca8f
2 changed files with 30 additions and 11 deletions
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38
content/media/MediaDecoderStateMachine.cpp
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@ -1154,9 +1154,9 @@ void MediaDecoderStateMachine::StartPlayback()
SetPlayStartTime(TimeStamp::Now());
NS_ASSERTION(IsPlaying(), "Should report playing by end of StartPlayback()");
if (NS_FAILED(StartAudioThread())) {
DECODER_WARN("Failed to create audio thread");
}
nsresult rv = StartAudioThread();
NS_ENSURE_SUCCESS_VOID(rv);
mDecoder->GetReentrantMonitor().NotifyAll();
mDecoder->UpdateStreamBlockingForStateMachinePlaying();
DispatchDecodeTasksIfNeeded();
@ -1791,15 +1791,12 @@ MediaDecoderStateMachine::StartAudioThread()
mStopAudioThread = false;
if (HasAudio() && !mAudioSink) {
mAudioCompleted = false;
mAudioSink = new AudioSink(this,
mAudioStartTime, mInfo.mAudio, mDecoder->GetAudioChannel());
mAudioSink = new AudioSink(this, mAudioStartTime,
mInfo.mAudio, mDecoder->GetAudioChannel());
// OnAudioSinkError() will be called before Init() returns if an error
// occurs during initialization.
nsresult rv = mAudioSink->Init();
if (NS_FAILED(rv)) {
DECODER_WARN("Changed state to SHUTDOWN because audio sink initialization failed");
SetState(DECODER_STATE_SHUTDOWN);
mScheduler->ScheduleAndShutdown();
return rv;
}
NS_ENSURE_SUCCESS(rv, rv);
mAudioSink->SetVolume(mVolume);
mAudioSink->SetPlaybackRate(mPlaybackRate);
@ -3124,6 +3121,25 @@ void MediaDecoderStateMachine::OnAudioSinkComplete()
mDecoder->GetReentrantMonitor().NotifyAll();
}
void MediaDecoderStateMachine::OnAudioSinkError()
{
AssertCurrentThreadInMonitor();
// AudioSink not used with captured streams, so ignore errors in this case.
if (mAudioCaptured) {
return;
}
mAudioCompleted = true;
// Notify media decoder/element about this error.
RefPtr<nsIRunnable> task(
NS_NewRunnableMethod(this, &MediaDecoderStateMachine::OnDecodeError));
nsresult rv = mDecodeTaskQueue->Dispatch(task);
if (NS_FAILED(rv)) {
DECODER_WARN("Failed to dispatch OnDecodeError");
}
}
} // namespace mozilla
// avoid redefined macro in unified build

3
content/media/MediaDecoderStateMachine.h
View File

@ -636,6 +636,9 @@ protected:
// and the sink is shutting down.
void OnAudioSinkComplete();
// Called by the AudioSink to signal errors.
void OnAudioSinkError();
// The decoder object that created this state machine. The state machine
// holds a strong reference to the decoder to ensure that the decoder stays
// alive once media element has started the decoder shutdown process, and has