Esempio n. 1
0
void
AudioSink::WriteSilence(uint32_t aFrames)
{
  uint32_t numSamples = aFrames * mInfo.mChannels;
  nsAutoTArray<AudioDataValue, 1000> buf;
  buf.SetLength(numSamples);
  memset(buf.Elements(), 0, numSamples * sizeof(AudioDataValue));
  mAudioStream->Write(buf.Elements(), aFrames);

  StartAudioStreamPlaybackIfNeeded();
}
Esempio n. 2
0
uint32_t
AudioSink::PlayFromAudioQueue()
{
  AssertOnAudioThread();
  NS_ASSERTION(!mAudioStream->IsPaused(), "Don't play when paused");
  nsRefPtr<AudioData> audio(AudioQueue().PopFront());

  SINK_LOG_V("playing %u frames of audio at time %lld",
             audio->mFrames, audio->mTime);
  mAudioStream->Write(audio->mAudioData, audio->mFrames);

  StartAudioStreamPlaybackIfNeeded();

  if (audio->mOffset != -1) {
    mStateMachine->DispatchOnPlaybackOffsetUpdate(audio->mOffset);
  }
  return audio->mFrames;
}
uint32_t
DecodedAudioDataSink::PlayFromAudioQueue()
{
  AssertOnAudioThread();
  NS_ASSERTION(!mAudioStream->IsPaused(), "Don't play when paused");
  nsRefPtr<AudioData> audio =
    dont_AddRef(AudioQueue().PopFront().take()->As<AudioData>());

  SINK_LOG_V("playing %u frames of audio at time %lld",
             audio->mFrames, audio->mTime);
  if (audio->mRate == mInfo.mRate && audio->mChannels == mInfo.mChannels) {
    mAudioStream->Write(audio->mAudioData, audio->mFrames);
  } else {
    SINK_LOG_V("mismatched sample format mInfo=[%uHz/%u channels] audio=[%uHz/%u channels]",
               mInfo.mRate, mInfo.mChannels, audio->mRate, audio->mChannels);
    PlaySilence(audio->mFrames);
  }

  StartAudioStreamPlaybackIfNeeded();

  return audio->mFrames;
}
Esempio n. 4
0
uint32_t
AudioSink::PlayFromAudioQueue()
{
  AssertOnAudioThread();
  NS_ASSERTION(!mAudioStream->IsPaused(), "Don't play when paused");
  nsRefPtr<AudioData> audio(AudioQueue().PopFront());

  SINK_LOG_V("playing %u frames of audio at time %lld",
             audio->mFrames, audio->mTime);
  if (audio->mRate == mInfo.mRate && audio->mChannels == mInfo.mChannels) {
    mAudioStream->Write(audio->mAudioData, audio->mFrames);
  } else {
    SINK_LOG_V("mismatched sample format mInfo=[%uHz/%u channels] audio=[%uHz/%u channels]",
               mInfo.mRate, mInfo.mChannels, audio->mRate, audio->mChannels);
    PlaySilence(audio->mFrames);
  }

  StartAudioStreamPlaybackIfNeeded();

  if (audio->mOffset != -1) {
    mStateMachine->DispatchOnPlaybackOffsetUpdate(audio->mOffset);
  }
  return audio->mFrames;
}
Esempio n. 5
0
uint32_t
AudioSink::PlayFromAudioQueue()
{
  AssertOnAudioThread();
  NS_ASSERTION(!mAudioStream->IsPaused(), "Don't play when paused");
  nsAutoPtr<AudioData> audio(AudioQueue().PopFront());
  {
    ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
    NS_WARN_IF_FALSE(mPlaying, "Should be playing");
    // Awaken the decode loop if it's waiting for space to free up in the
    // audio queue.
    GetReentrantMonitor().NotifyAll();
  }
  SINK_LOG_V("playing %u frames of audio at time %lld",
             this, audio->mFrames, audio->mTime);
  mAudioStream->Write(audio->mAudioData, audio->mFrames);

  StartAudioStreamPlaybackIfNeeded();

  if (audio->mOffset != -1) {
    mStateMachine->OnPlaybackOffsetUpdate(audio->mOffset);
  }
  return audio->mFrames;
}