void AudioOutputDeviceCoreAudio::HandleOutputBuffer (
void *aqData,
AudioQueueRef inAQ,
AudioQueueBufferRef inBuffer
) {
AQPlayerState* pAqData = (AQPlayerState*) aqData;
if (atomic_read(&(pAqData->mIsRunning)) == 0) {
AudioQueueFlush(pAqData->mQueue);
AudioQueueStop (pAqData->mQueue, true);
return;
}
if(atomic_read(&(pAqData->pDevice->restartQueue))) return;
uint bufferSize = pAqData->pDevice->uiBufferSize;
// let all connected engines render 'fragmentSize' sample points
pAqData->pDevice->RenderAudio(bufferSize);
Float32* pDataBuf = (Float32*)(inBuffer->mAudioData);
uint uiCoreAudioChannels = pAqData->pDevice->uiCoreAudioChannels;
for (int c = 0; c < uiCoreAudioChannels; c++) {
float* in = pAqData->pDevice->Channels[c]->Buffer();
for (int i = 0, o = c; i < bufferSize; i++ , o += uiCoreAudioChannels) {
pDataBuf[o] = in[i];
}
}
inBuffer->mAudioDataByteSize = (uiCoreAudioChannels * 4) * bufferSize;
OSStatus res = AudioQueueEnqueueBuffer(pAqData->mQueue, inBuffer, 0, NULL);
if(res) std::cerr << "AudioQueueEnqueueBuffer: Error " << res << std::endl;
}
void Audio_Queue::stop(bool stopImmediately)
{
if (!m_audioQueueStarted) {
AQ_TRACE("%s: audio queue already stopped, return!\n", __PRETTY_FUNCTION__);
return;
}
m_audioQueueStarted = false;
AQ_TRACE("%s: enter\n", __PRETTY_FUNCTION__);
if (AudioQueueFlush(m_outAQ) != 0) {
AQ_TRACE("%s: AudioQueueFlush failed!\n", __PRETTY_FUNCTION__);
}
if (stopImmediately) {
AudioQueueRemovePropertyListener(m_outAQ,
kAudioQueueProperty_IsRunning,
audioQueueIsRunningCallback,
this);
}
if (AudioQueueStop(m_outAQ, stopImmediately) != 0) {
AQ_TRACE("%s: AudioQueueStop failed!\n", __PRETTY_FUNCTION__);
}
if (stopImmediately) {
setState(IDLE);
}
AQ_TRACE("%s: leave\n", __PRETTY_FUNCTION__);
}
OSStatus DZAudioQueuePlayer::flush()
{
if (this->_queue == NULL) {
return dzDebug(!noErr, "Null audio queue to flush.");
}
return dzDebug(AudioQueueFlush(this->_queue), "Fail to flush audio queue.");
}
static void
gst_atdec_flush (GstAudioDecoder * decoder, gboolean hard)
{
GstATDec *atdec = GST_ATDEC (decoder);
AudioQueueFlush (atdec->queue);
}
static void AQTestBufferCallback(void *inUserData, AudioQueueRef inAQ, AudioQueueBufferRef inCompleteAQBuffer)
{
AQTestInfo * myInfo = (AQTestInfo *)inUserData;
if (myInfo->mDone) return;
UInt32 numBytes;
UInt32 nPackets = myInfo->mNumPacketsToRead;
OSStatus result = AudioFileReadPackets(myInfo->mAudioFile, // The audio file from which packets of audio data are to be read.
false, // Set to true to cache the data. Otherwise, set to false.
&numBytes, // On output, a pointer to the number of bytes actually returned.
myInfo->mPacketDescs, // A pointer to an array of packet descriptions that have been allocated.
myInfo->mCurrentPacket, // The packet index of the first packet you want to be returned.
&nPackets, // On input, a pointer to the number of packets to read. On output, the number of packets actually read.
inCompleteAQBuffer->mAudioData); // A pointer to user-allocated memory.
if (result) {
DebugMessageN1 ("Error reading from file: %d\n", (int)result);
exit(1);
}
// we have some data
if (nPackets > 0) {
inCompleteAQBuffer->mAudioDataByteSize = numBytes;
result = AudioQueueEnqueueBuffer(inAQ, // The audio queue that owns the audio queue buffer.
inCompleteAQBuffer, // The audio queue buffer to add to the buffer queue.
(myInfo->mPacketDescs ? nPackets : 0), // The number of packets of audio data in the inBuffer parameter. See Docs.
myInfo->mPacketDescs); // An array of packet descriptions. Or NULL. See Docs.
if (result) {
DebugMessageN1 ("Error enqueuing buffer: %d\n", (int)result);
exit(1);
}
myInfo->mCurrentPacket += nPackets;
} else {
// **** This ensures that we flush the queue when done -- ensures you get all the data out ****
if (!myInfo->mFlushed) {
result = AudioQueueFlush(myInfo->mQueue);
if (result) {
DebugMessageN1("AudioQueueFlush failed: %d", (int)result);
exit(1);
}
myInfo->mFlushed = true;
}
result = AudioQueueStop(myInfo->mQueue, false);
if (result) {
DebugMessageN1("AudioQueueStop(false) failed: %d", (int)result);
exit(1);
}
// reading nPackets == 0 is our EOF condition
myInfo->mDone = true;
}
}
long AudioStreamDecoder::Stop()
{
long err = 0;
if (mStream)
{
err = AudioFileStreamClose(mStream);
CARP_IF(err, "AudioFileStreamClose returned %ld\n", err);
mStream = NULL;
}
if (mStarted)
{
err = AudioQueueFlush(mQueue);
BAIL_IF(err, "AudioQueueFlush returned %ld\n", err);
err = AudioQueueStop(mQueue, true);
BAIL_IF(err, "AudioQueueStop returned %ld\n", err);
err = pthread_mutex_lock(&mMutex);
BAIL_IF(err, "pthread_mutex_lock returned %ld\n", err);
if (!mFinished)
{
err = pthread_cond_wait(&mCond, &mMutex);
BAIL_IF(err, "pthread_cond_wait returned %ld\n", err);
}
err = pthread_mutex_unlock(&mMutex);
BAIL_IF(err, "pthread_mutex_unlock returned %ld\n", err);
mStarted = false;
mFinished = false;
}
if (mQueue)
{
for (int i = 0; i < kBufferCount; i++)
{
if (mBuffers[i])
{
err = AudioQueueFreeBuffer(mQueue, mBuffers[i]);
CARP_IF(err, "AudioQueueFreeBuffer returned %ld\n", err);
}
}
err = AudioQueueDispose(mQueue, true);
CARP_IF(err, "AudioQueueDispose returned %ld\n", err);
mQueue = NULL;
}
bail:
return err;
}
void Audio_Queue::stop()
{
if (!m_audioQueueStarted) {
return;
}
AQ_TRACE("Audio_Queue::stop(): enter\n");
if (AudioQueueFlush(m_outAQ) != 0) {
AQ_TRACE("Audio_Queue::stop(): AudioQueueFlush failed!\n");
}
if (AudioQueueStop(m_outAQ, true) != 0) {
AQ_TRACE("Audio_Queue::stop(): AudioQueueStop failed!\n");
}
m_audioQueueStarted = false;
AQ_TRACE("Audio_Queue::stop(): leave\n");
}
/*auPause--------------------------------------------------*/
BOOL auPause(Audio* self)
{
if(self->isPlaying)
{
#ifdef __APPLE__
OSStatus error = AudioQueueFlush(self->queue);
if(!error)
error = AudioQueueStop (self->queue, YES);
self->isPlaying = (error != 0);
#elif defined __linux__
self->threadShouldContinueRunning = NO;
if(self->threadIsRunning)
pthread_join(self->thread, NULL);
self->isPlaying = NO;
#endif
}
return self->isPlaying;
}
void Audio_Queue::stop(bool stopImmediately)
{
if (!m_audioQueueStarted) {
AQ_TRACE("%s: audio queue already stopped, return!\n", __PRETTY_FUNCTION__);
return;
}
m_audioQueueStarted = false;
m_levelMeteringEnabled = false;
pthread_mutex_lock(&m_bufferInUseMutex);
pthread_cond_signal(&m_bufferFreeCondition);
pthread_mutex_unlock(&m_bufferInUseMutex);
AQ_TRACE("%s: enter\n", __PRETTY_FUNCTION__);
if (AudioQueueFlush(m_outAQ) != 0) {
AQ_TRACE("%s: AudioQueueFlush failed!\n", __PRETTY_FUNCTION__);
}
if (stopImmediately) {
AudioQueueRemovePropertyListener(m_outAQ,
kAudioQueueProperty_IsRunning,
audioQueueIsRunningCallback,
this);
}
if (AudioQueueStop(m_outAQ, stopImmediately) != 0) {
AQ_TRACE("%s: AudioQueueStop failed!\n", __PRETTY_FUNCTION__);
}
if (stopImmediately) {
setState(IDLE);
}
AQ_TRACE("%s: leave\n", __PRETTY_FUNCTION__);
}
int main (int argc, char * const argv[])
{
// allocate a struct for storing our state
MyData* myData = (MyData*)calloc(1, sizeof(MyData));
// initialize a mutex and condition so that we can block on buffers in use.
pthread_mutex_init(&myData->mutex, NULL);
pthread_cond_init(&myData->cond, NULL);
pthread_cond_init(&myData->done, NULL);
// get connected
int connection_socket = MyConnectSocket();
if (connection_socket < 0) return 1;
printf("connected\n");
// allocate a buffer for reading data from a socket
const size_t kRecvBufSize = 40000;
char* buf = (char*)malloc(kRecvBufSize * sizeof(char));
// create an audio file stream parser
OSStatus err = AudioFileStreamOpen(myData, MyPropertyListenerProc, MyPacketsProc,
kAudioFileAAC_ADTSType, &myData->audioFileStream);
if (err) { PRINTERROR("AudioFileStreamOpen"); return 1; }
while (!myData->failed) {
// read data from the socket
printf("->recv\n");
ssize_t bytesRecvd = recv(connection_socket, buf, kRecvBufSize, 0);
printf("bytesRecvd %d\n", bytesRecvd);
if (bytesRecvd <= 0) break; // eof or failure
// parse the data. this will call MyPropertyListenerProc and MyPacketsProc
err = AudioFileStreamParseBytes(myData->audioFileStream, bytesRecvd, buf, 0);
if (err) { PRINTERROR("AudioFileStreamParseBytes"); break; }
}
// enqueue last buffer
MyEnqueueBuffer(myData);
printf("flushing\n");
err = AudioQueueFlush(myData->audioQueue);
if (err) { PRINTERROR("AudioQueueFlush"); return 1; }
printf("stopping\n");
err = AudioQueueStop(myData->audioQueue, false);
if (err) { PRINTERROR("AudioQueueStop"); return 1; }
printf("waiting until finished playing..\n");
pthread_mutex_lock(&myData->mutex);
pthread_cond_wait(&myData->done, &myData->mutex);
pthread_mutex_unlock(&myData->mutex);
printf("done\n");
// cleanup
free(buf);
err = AudioFileStreamClose(myData->audioFileStream);
err = AudioQueueDispose(myData->audioQueue, false);
close(connection_socket);
free(myData);
return 0;
}
void AudioOutputDeviceCoreAudio::DestroyAudioQueue() {
AudioQueueFlush(aqPlayerState.mQueue);
AudioQueueStop (aqPlayerState.mQueue, true);
AudioQueueDispose(aqPlayerState.mQueue, true);
aqPlayerState.mQueue = NULL;
}
