void AudioDestination::render(const blink::WebVector<float*>& sourceData, const blink::WebVector<float*>& audioData, size_t numberOfFrames)
{
bool isNumberOfChannelsGood = audioData.size() == m_numberOfOutputChannels;
if (!isNumberOfChannelsGood) {
ASSERT_NOT_REACHED();
return;
}
bool isBufferSizeGood = numberOfFrames == m_callbackBufferSize;
if (!isBufferSizeGood) {
ASSERT_NOT_REACHED();
return;
}
// Buffer optional live input.
if (sourceData.size() >= 2) {
// FIXME: handle multi-channel input and don't hard-code to stereo.
RefPtr<AudioBus> wrapperBus = AudioBus::create(2, numberOfFrames, false);
wrapperBus->setChannelMemory(0, sourceData[0], numberOfFrames);
wrapperBus->setChannelMemory(1, sourceData[1], numberOfFrames);
m_inputFifo->push(wrapperBus.get());
}
for (unsigned i = 0; i < m_numberOfOutputChannels; ++i)
m_renderBus->setChannelMemory(i, audioData[i], numberOfFrames);
m_fifo->consume(m_renderBus.get(), numberOfFrames);
}
virtual void setUint8Array(const char* propertyName, const blink::WebVector<unsigned char>& vector)
{
RefPtr<Uint8Array> uint8Array = Uint8Array::create(vector.data(), vector.size());
m_dictionary.set(propertyName, toV8(uint8Array.get(), m_holder, m_isolate));
}