// this is called by the audio queue when it has finished decoding our data.
// The buffer is now free to be reused.
void Audio_Queue::audioQueueOutputCallback(void *inClientData, AudioQueueRef inAQ, AudioQueueBufferRef inBuffer)
{
Audio_Queue *audioQueue = static_cast<Audio_Queue*>(inClientData);
unsigned int bufIndex = audioQueue->findQueueBuffer(inBuffer);
AQ_TRACE("signaling buffer free for inuse %i....\n", bufIndex);
// signal waiting thread that the buffer is free.
pthread_mutex_lock(audioQueue->m_bufferInUseMutex);
audioQueue->m_bufferInUse[bufIndex] = false;
pthread_cond_signal(audioQueue->m_bufferFreeCondition);
pthread_mutex_unlock(audioQueue->m_bufferInUseMutex);
AQ_TRACE("signal sent!\n");
}
// this is called by the audio queue when it has finished decoding our data.
// The buffer is now free to be reused.
void Audio_Queue::audioQueueOutputCallback(void *inClientData, AudioQueueRef inAQ, AudioQueueBufferRef inBuffer)
{
Audio_Queue *audioQueue = static_cast<Audio_Queue*>(inClientData);
unsigned int bufIndex = audioQueue->findQueueBuffer(inBuffer);
assert(audioQueue->m_bufferInUse[bufIndex]);
audioQueue->m_bufferInUse[bufIndex] = false;
audioQueue->m_buffersUsed--;
if (audioQueue->m_buffersUsed == 0 && !audioQueue->m_queuedHead && audioQueue->m_delegate) {
audioQueue->m_delegate->audioQueueBuffersEmpty();
} else if (audioQueue->m_waitingOnBuffer) {
audioQueue->m_waitingOnBuffer = false;
audioQueue->enqueueCachedData();
}
}
void Audio_Queue::audioQueueIsRunningCallback(void *inClientData, AudioQueueRef inAQ, AudioQueuePropertyID inID)
{
Audio_Queue *audioQueue = static_cast<Audio_Queue*>(inClientData);
UInt32 running;
UInt32 size;
OSStatus err = AudioQueueGetProperty(inAQ, kAudioQueueProperty_IsRunning, &running, &size);
if (err) {
AQ_TRACE("error in kAudioQueueProperty_IsRunning");
audioQueue->setState(IDLE);
audioQueue->m_lastError = err;
return;
}
if (running) {
audioQueue->setState(RUNNING);
} else {
audioQueue->setState(IDLE);
}
}
void Audio_Queue::audioQueueIsRunningCallback(void *inClientData, AudioQueueRef inAQ, AudioQueuePropertyID inID)
{
Audio_Queue *audioQueue = static_cast<Audio_Queue*>(inClientData);
AQ_TRACE("%s: enter\n", __PRETTY_FUNCTION__);
UInt32 running;
UInt32 output = sizeof(running);
OSStatus err = AudioQueueGetProperty(inAQ, kAudioQueueProperty_IsRunning, &running, &output);
if (err) {
AQ_TRACE("%s: error in kAudioQueueProperty_IsRunning\n", __PRETTY_FUNCTION__);
return;
}
if (running) {
AQ_TRACE("audio queue running!\n");
audioQueue->setState(RUNNING);
} else {
audioQueue->setState(IDLE);
}
}