void DefaultAudioDestinationHandler::setChannelCount(
unsigned long channelCount,
ExceptionState& exceptionState) {
// The channelCount for the input to this node controls the actual number of
// channels we send to the audio hardware. It can only be set depending on the
// maximum number of channels supported by the hardware.
DCHECK(isMainThread());
if (!maxChannelCount() || channelCount > maxChannelCount()) {
exceptionState.throwDOMException(
IndexSizeError,
ExceptionMessages::indexOutsideRange<unsigned>(
"channel count", channelCount, 1, ExceptionMessages::InclusiveBound,
maxChannelCount(), ExceptionMessages::InclusiveBound));
return;
}
unsigned long oldChannelCount = this->channelCount();
AudioHandler::setChannelCount(channelCount, exceptionState);
if (!exceptionState.hadException() &&
this->channelCount() != oldChannelCount && isInitialized()) {
// Re-create destination.
m_destination->stop();
createDestination();
m_destination->start();
}
}
void OutputDestinationMaker::createDestinationsForAllOutput(Simulation *simulation) {
QList<Output*> outputs = find<Output*>("*", simulation);
for (QList<Output*>::iterator ou = outputs.begin(); ou != outputs.end(); ++ou) {
createDestination(*ou);
}
}
void DefaultAudioDestinationHandler::initialize() {
DCHECK(isMainThread());
if (isInitialized())
return;
createDestination();
AudioHandler::initialize();
}
void DefaultAudioDestinationNode::initialize()
{
if (isInitialized())
return;
createDestination();
AudioNode::initialize();
}
void DefaultAudioDestinationNode::initialize()
{
ASSERT(isMainThread());
if (isInitialized())
return;
createDestination(String());
AudioNode::initialize();
}
void DefaultAudioDestinationNode::enableInput(const String& inputDeviceId)
{
ASSERT(isMainThread());
if (m_numberOfInputChannels != EnabledInputChannels) {
m_numberOfInputChannels = EnabledInputChannels;
if (isInitialized()) {
// Re-create destination.
m_destination->stop();
createDestination(inputDeviceId);
m_destination->start();
}
}
}
void DefaultAudioDestinationNode::setChannelCount(ContextGraphLock& g, unsigned long channelCount)
{
// The channelCount for the input to this node controls the actual number of channels we
// send to the audio hardware. It can only be set depending on the maximum number of
// channels supported by the hardware.
ASSERT(g.context());
if (!maxChannelCount() || channelCount > maxChannelCount())
{
throw std::invalid_argument("Max channel count invalid");
}
unsigned long oldChannelCount = this->channelCount();
AudioNode::setChannelCount(g, channelCount);
if (this->channelCount() != oldChannelCount && isInitialized())
{
// Re-create destination.
m_destination->stop();
createDestination();
m_destination->start();
}
}