C++ AudioSegment::AppendAndConsumeChunk方法代码示例

本文整理汇总了C++中AudioSegment::AppendAndConsumeChunk方法的典型用法代码示例。如果您正苦于以下问题：C++ AudioSegment::AppendAndConsumeChunk方法的具体用法？C++ AudioSegment::AppendAndConsumeChunk怎么用？C++ AudioSegment::AppendAndConsumeChunk使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类AudioSegment的用法示例。

在下文中一共展示了AudioSegment::AppendAndConsumeChunk方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: FinishOutput

// The MediaStreamGraph guarantees that this is actually one block, for
// AudioNodeStreams.
void
AudioNodeStream::ProduceOutput(GraphTime aFrom, GraphTime aTo)
{
  if (mMarkAsFinishedAfterThisBlock) {
    // This stream was finished the last time that we looked at it, and all
    // of the depending streams have finished their output as well, so now
    // it's time to mark this stream as finished.
    FinishOutput();
  }

  StreamBuffer::Track* track = EnsureTrack();

  AudioSegment* segment = track->Get<AudioSegment>();

  mLastChunks.SetLength(1);
  mLastChunks[0].SetNull(0);

  if (mInCycle) {
    // XXX DelayNode not supported yet so just produce silence
    mLastChunks[0].SetNull(WEBAUDIO_BLOCK_SIZE);
  } else {
    // We need to generate at least one input
    uint16_t maxInputs = std::max(uint16_t(1), mEngine->InputCount());
    OutputChunks inputChunks;
    inputChunks.SetLength(maxInputs);
    for (uint16_t i = 0; i < maxInputs; ++i) {
      ObtainInputBlock(inputChunks[i], i);
    }
    bool finished = false;
    if (maxInputs <= 1 && mEngine->OutputCount() <= 1) {
      mEngine->ProduceAudioBlock(this, inputChunks[0], &mLastChunks[0], &finished);
    } else {
      mEngine->ProduceAudioBlocksOnPorts(this, inputChunks, mLastChunks, &finished);
    }
    if (finished) {
      mMarkAsFinishedAfterThisBlock = true;
    }
  }

  if (mKind == MediaStreamGraph::EXTERNAL_STREAM) {
    segment->AppendAndConsumeChunk(&mLastChunks[0]);
  } else {
    segment->AppendNullData(mLastChunks[0].GetDuration());
  }

  for (uint32_t j = 0; j < mListeners.Length(); ++j) {
    MediaStreamListener* l = mListeners[j];
    AudioChunk copyChunk = mLastChunks[0];
    AudioSegment tmpSegment;
    tmpSegment.AppendAndConsumeChunk(&copyChunk);
    l->NotifyQueuedTrackChanges(Graph(), AUDIO_NODE_STREAM_TRACK_ID,
                                IdealAudioRate(), segment->GetDuration(), 0,
                                tmpSegment);
  }
}

开发者ID:vlajos，项目名称:mozilla-central，代码行数:57，代码来源:AudioNodeStream.cpp

示例2: EnsureTrack

void
AudioNodeStream::AdvanceOutputSegment()
{
  StreamBuffer::Track* track = EnsureTrack(AUDIO_TRACK);
  AudioSegment* segment = track->Get<AudioSegment>();

  if (mKind == MediaStreamGraph::EXTERNAL_STREAM) {
    segment->AppendAndConsumeChunk(&mLastChunks[0]);
  } else {
    segment->AppendNullData(mLastChunks[0].GetDuration());
  }

  for (uint32_t j = 0; j < mListeners.Length(); ++j) {
    MediaStreamListener* l = mListeners[j];
    AudioChunk copyChunk = mLastChunks[0];
    AudioSegment tmpSegment;
    tmpSegment.AppendAndConsumeChunk(&copyChunk);
    l->NotifyQueuedTrackChanges(Graph(), AUDIO_TRACK,
                                segment->GetDuration(), 0, tmpSegment);
  }
}

开发者ID:paulmadore，项目名称:luckyde，代码行数:21，代码来源:AudioNodeStream.cpp

示例3: EnsureTrack

// The MediaStreamGraph guarantees that this is actually one block, for
// AudioNodeStreams.
void
AudioNodeStream::ProduceOutput(GraphTime aFrom, GraphTime aTo)
{
  StreamBuffer::Track* track = EnsureTrack();

  AudioChunk outputChunk;
  AudioSegment* segment = track->Get<AudioSegment>();

  outputChunk.SetNull(0);

  if (mInCycle) {
    // XXX DelayNode not supported yet so just produce silence
    outputChunk.SetNull(WEBAUDIO_BLOCK_SIZE);
  } else {
    AudioChunk tmpChunk;
    AudioChunk* inputChunk = ObtainInputBlock(&tmpChunk);
    bool finished = false;
    mEngine->ProduceAudioBlock(this, *inputChunk, &outputChunk, &finished);
    if (finished) {
      FinishOutput();
    }
  }

  mLastChunk = outputChunk;
  if (mKind == MediaStreamGraph::EXTERNAL_STREAM) {
    segment->AppendAndConsumeChunk(&outputChunk);
  } else {
    segment->AppendNullData(outputChunk.GetDuration());
  }

  for (uint32_t j = 0; j < mListeners.Length(); ++j) {
    MediaStreamListener* l = mListeners[j];
    AudioChunk copyChunk = outputChunk;
    AudioSegment tmpSegment;
    tmpSegment.AppendAndConsumeChunk(&copyChunk);
    l->NotifyQueuedTrackChanges(Graph(), AUDIO_NODE_STREAM_TRACK_ID,
                                IdealAudioRate(), segment->GetDuration(), 0,
                                tmpSegment);
  }
}

开发者ID:TelefonicaPushServer，项目名称:mozilla-central，代码行数:42，代码来源:AudioNodeStream.cpp

示例4: EnsureTrack

void
AudioNodeStream::AdvanceOutputSegment()
{
  StreamBuffer::Track* track = EnsureTrack(AUDIO_TRACK);
  // No more tracks will be coming
  mBuffer.AdvanceKnownTracksTime(STREAM_TIME_MAX);

  AudioSegment* segment = track->Get<AudioSegment>();

  if (!mLastChunks[0].IsNull()) {
    segment->AppendAndConsumeChunk(mLastChunks[0].AsMutableChunk());
  } else {
    segment->AppendNullData(mLastChunks[0].GetDuration());
  }

  for (uint32_t j = 0; j < mListeners.Length(); ++j) {
    MediaStreamListener* l = mListeners[j];
    AudioChunk copyChunk = mLastChunks[0].AsAudioChunk();
    AudioSegment tmpSegment;
    tmpSegment.AppendAndConsumeChunk(&copyChunk);
    l->NotifyQueuedTrackChanges(Graph(), AUDIO_TRACK,
                                segment->GetDuration(), 0, tmpSegment);
  }
}

开发者ID:Nazi-Nigger，项目名称:gecko-dev，代码行数:24，代码来源:AudioNodeStream.cpp

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