void Audio_Queue::handlePropertyChange(AudioFileStreamID inAudioFileStream, AudioFileStreamPropertyID inPropertyID, UInt32 *ioFlags)
{
OSStatus err = noErr;
AQ_TRACE("found property '%lu%lu%lu%lu'\n", (inPropertyID>>24)&255, (inPropertyID>>16)&255, (inPropertyID>>8)&255, inPropertyID&255);
switch (inPropertyID) {
case kAudioFileStreamProperty_ReadyToProducePackets:
{
// the file stream parser is now ready to produce audio packets.
// get the stream format.
AudioStreamBasicDescription asbd;
memset(&asbd, 0, sizeof(asbd));
UInt32 asbdSize = sizeof(asbd);
err = AudioFileStreamGetProperty(inAudioFileStream, kAudioFileStreamProperty_DataFormat, &asbdSize, &asbd);
if (err) {
AQ_TRACE("get kAudioFileStreamProperty_DataFormat\n");
m_lastError = err;
break;
}
// create the audio queue
err = AudioQueueNewOutput(&asbd, audioQueueOutputCallback, this, NULL, NULL, 0, &m_outAQ);
if (err) {
AQ_TRACE("AudioQueueNewOutput\n");
m_lastError = err;
break;
}
// allocate audio queue buffers
for (unsigned int i = 0; i < AQ_BUFFERS; ++i) {
err = AudioQueueAllocateBuffer(m_outAQ, AQ_BUFSIZ, &m_audioQueueBuffer[i]);
if (err) {
AQ_TRACE("AudioQueueAllocateBuffer\n");
m_lastError = err;
break;
}
}
setCookiesForStream(inAudioFileStream);
// listen for kAudioQueueProperty_IsRunning
err = AudioQueueAddPropertyListener(m_outAQ, kAudioQueueProperty_IsRunning, audioQueueIsRunningCallback, this);
if (err) {
AQ_TRACE("error in AudioQueueAddPropertyListener");
m_lastError = err;
break;
}
break;
}
}
}
void Audio_Queue::handlePropertyChange(AudioFileStreamID inAudioFileStream, AudioFileStreamPropertyID inPropertyID, UInt32 *ioFlags)
{
OSStatus err = noErr;
AQ_TRACE("found property '%lu%lu%lu%lu'\n", (inPropertyID>>24)&255, (inPropertyID>>16)&255, (inPropertyID>>8)&255, inPropertyID&255);
switch (inPropertyID) {
case kAudioFileStreamProperty_ReadyToProducePackets:
{
cleanup();
// the file stream parser is now ready to produce audio packets.
// get the stream format.
memset(&m_streamDesc, 0, sizeof(m_streamDesc));
UInt32 asbdSize = sizeof(m_streamDesc);
err = AudioFileStreamGetProperty(inAudioFileStream, kAudioFileStreamProperty_DataFormat, &asbdSize, &m_streamDesc);
if (err) {
AQ_TRACE("%s: error in kAudioFileStreamProperty_DataFormat\n", __PRETTY_FUNCTION__);
m_lastError = err;
break;
}
// create the audio queue
err = AudioQueueNewOutput(&m_streamDesc, audioQueueOutputCallback, this, CFRunLoopGetCurrent(), NULL, 0, &m_outAQ);
if (err) {
AQ_TRACE("%s: error in AudioQueueNewOutput\n", __PRETTY_FUNCTION__);
if (m_delegate) {
m_delegate->audioQueueInitializationFailed();
}
m_lastError = err;
break;
}
// allocate audio queue buffers
for (unsigned int i = 0; i < AQ_BUFFERS; ++i) {
err = AudioQueueAllocateBuffer(m_outAQ, AQ_BUFSIZ, &m_audioQueueBuffer[i]);
if (err) {
/* If allocating the buffers failed, everything else will fail, too.
* Dispose the queue so that we can later on detect that this
* queue in fact has not been initialized.
*/
AQ_TRACE("%s: error in AudioQueueAllocateBuffer\n", __PRETTY_FUNCTION__);
(void)AudioQueueDispose(m_outAQ, true);
m_outAQ = 0;
if (m_delegate) {
m_delegate->audioQueueInitializationFailed();
}
m_lastError = err;
break;
}
}
setCookiesForStream(inAudioFileStream);
// listen for kAudioQueueProperty_IsRunning
err = AudioQueueAddPropertyListener(m_outAQ, kAudioQueueProperty_IsRunning, audioQueueIsRunningCallback, this);
if (err) {
AQ_TRACE("%s: error in AudioQueueAddPropertyListener\n", __PRETTY_FUNCTION__);
m_lastError = err;
break;
}
break;
}
}
}
