void AudioEnginePropertyListenerProc (void *inUserData, AudioQueueRef inAQ, AudioQueuePropertyID inID) {
//We are only interested in the property kAudioQueueProperty_IsRunning
if (inID != kAudioQueueProperty_IsRunning) return;
struct myAQStruct *myInfo = (struct myAQStruct *)inUserData;
/* Get the current status of the AQ, running or stopped */
UInt32 isQueueRunning = false;
UInt32 size = sizeof(isQueueRunning);
AudioQueueGetProperty(myInfo->mQueue, kAudioQueueProperty_IsRunning, &isQueueRunning, &size);
/* The callback event is the start of the queue */
if (isQueueRunning) {
/* reset current packet counter */
myInfo->mCurrentPacket = 0;
for (int i = 0; i < 3; i++) {
/*
* For the first time allocate buffers for this AQ.
* Buffers are reused in turns until the AQ stops
*/
AudioQueueAllocateBuffer(myInfo->mQueue, bufferSizeInSamples * 4, &myInfo->mBuffers[i]);
UInt32 bytesRead = bufferSizeInSamples * 4;
UInt32 packetsRead = bufferSizeInSamples;
/*
* Read data from audio source into the buffer of AQ
* supplied in this callback event. Buffers are used in turns
* to hide the latency
*/
AudioFileReadPacketData(
myInfo->mAudioFile,
false, /* isUseCache, set to false */
&bytesRead,
NULL,
myInfo->mCurrentPacket,
&packetsRead,
myInfo->mBuffers[i]->mAudioData);
/* in case the buffer size is smaller than bytes requestd to read */
myInfo->mBuffers[i]->mAudioDataByteSize = bytesRead;
myInfo->mCurrentPacket += packetsRead;
AudioQueueEnqueueBuffer(myInfo->mQueue, myInfo->mBuffers[i], 0, NULL);
}
} else {
/* The callback event is the state of AQ changed to not running */
if (myInfo->mAudioFile != NULL) {
AudioQueueStop(myInfo->mQueue, false);
AudioFileClose(myInfo->mAudioFile);
myInfo->mAudioFile = NULL;
for (int i = 0; i < 3; i++) {
AudioQueueFreeBuffer(myInfo->mQueue, myInfo->mBuffers[i]);
myInfo->mBuffers[i] = NULL;
}
CFRunLoopStop(CFRunLoopGetCurrent());
}
}
}
/* destructor */
static tsk_object_t* tdav_consumer_audioqueue_dtor(tsk_object_t * self)
{
tdav_consumer_audioqueue_t *consumer = self;
if(consumer){
// Stop the consumer if not done
if(consumer->started){
tdav_consumer_audioqueue_stop(self);
}
// Free all buffers and dispose the queue
if (consumer->queue) {
tsk_size_t i;
for(i=0; i<CoreAudioPlayBuffers; i++){
AudioQueueFreeBuffer(consumer->queue, consumer->buffers[i]);
}
AudioQueueDispose(consumer->queue, true);
}
/* deinit base */
tdav_consumer_audio_deinit(TDAV_CONSUMER_AUDIO(consumer));
}
return self;
}
/* destructor */
static tsk_object_t* tdav_producer_audioqueue_dtor(tsk_object_t * self)
{
tdav_producer_audioqueue_t *producer = self;
if(producer){
// Stop the producer if not done
if(producer->started){
tdav_producer_audioqueue_stop(self);
}
// Free all buffers and dispose the queue
if (producer->queue) {
tsk_size_t i;
for(i=0; i<CoreAudioRecordBuffers; i++){
AudioQueueFreeBuffer(producer->queue, producer->buffers[i]);
}
AudioQueueDispose(producer->queue, true);
}
/* deinit base */
tdav_producer_audio_deinit(TDAV_PRODUCER_AUDIO(producer));
}
return self;
}
static void auplay_destructor(void *arg)
{
struct auplay_st *st = arg;
uint32_t i;
pthread_mutex_lock(&st->mutex);
st->wh = NULL;
pthread_mutex_unlock(&st->mutex);
audio_session_disable();
if (st->queue) {
AudioQueuePause(st->queue);
AudioQueueStop(st->queue, true);
for (i=0; i<ARRAY_SIZE(st->buf); i++)
if (st->buf[i])
AudioQueueFreeBuffer(st->queue, st->buf[i]);
AudioQueueDispose(st->queue, true);
}
mem_deref(st->ap);
pthread_mutex_destroy(&st->mutex);
}
/*auDestroy-----------------------------------------------*/
Audio* auDestroy(Audio* self)
{
if(self != NULL)
{
if(self->isPlaying) auPause(self);
#if defined __APPLE__
int i;
for(i=0; i<AU_NUM_AUDIO_BUFFERS; i++)
if(self->buffers[i] != NULL)
AudioQueueFreeBuffer(self->queue, self->buffers[i]);
if(self->queue != NULL)
AudioQueueDispose(self->queue, YES);
#elif defined __linux__
if(self->device != NULL)
{
snd_pcm_close(self->device);
self->device = NULL;
}
if(self->sampleBuffer)
free(self->sampleBuffer);
//if(self->thread != NULL)
//pthread_detach(self->thread);
#endif
free(self);
}
return (Audio*)NULL;
}
OSStatus
darwin_free_context (
darwin_context* io_context
)
{
OSStatus result = kAudio_ParamError;
if( NULL != io_context )
{
CPC_LOG_STRING( CPC_LOG_LEVEL_DEBUG, "Stopping audio queue..." );
result = AudioQueueStop( io_context->audio_queue, true );
CPC_LOG_STRING( CPC_LOG_LEVEL_DEBUG, "Stopped audio queue." );
if( noErr == result )
{
for( UINT32 i = 0; i < io_context->number_of_buffers; i++ )
{
if( NULL != io_context->audio_buffers[ i ] )
{
result =
AudioQueueFreeBuffer (
io_context->audio_queue,
io_context->audio_buffers[ i ]
);
if( result )
{
CPC_ERROR (
"Could not free queue buffer: 0x%x.",
result
);
CPC_PRINT_CODE( CPC_LOG_LEVEL_ERROR, result );
}
}
}
result =
AudioQueueDispose( io_context->audio_queue, true );
if( result )
{
CPC_ERROR( "Could not dispose of queue: 0x%x.", result );
CPC_PRINT_CODE( CPC_LOG_LEVEL_ERROR, result );
}
}
else
{
CPC_ERROR( "Could not stop audio queue: 0x%x.", result );
CPC_PRINT_CODE( CPC_LOG_LEVEL_ERROR, result );
}
}
return( result );
}
static GstFlowReturn
gst_atdec_handle_frame (GstAudioDecoder * decoder, GstBuffer * buffer)
{
AudioTimeStamp timestamp = { 0 };
AudioStreamPacketDescription packet;
AudioQueueBufferRef input_buffer, output_buffer;
GstBuffer *out;
GstMapInfo info;
GstAudioInfo *audio_info;
int size, out_frames;
GstFlowReturn flow_ret = GST_FLOW_OK;
GstATDec *atdec = GST_ATDEC (decoder);
if (buffer == NULL)
return GST_FLOW_OK;
audio_info = gst_audio_decoder_get_audio_info (decoder);
/* copy the input buffer into an AudioQueueBuffer */
size = gst_buffer_get_size (buffer);
AudioQueueAllocateBuffer (atdec->queue, size, &input_buffer);
gst_buffer_extract (buffer, 0, input_buffer->mAudioData, size);
input_buffer->mAudioDataByteSize = size;
/* assume framed input */
packet.mStartOffset = 0;
packet.mVariableFramesInPacket = 1;
packet.mDataByteSize = size;
/* enqueue the buffer. It will get free'd once the gst_atdec_buffer_emptied
* callback is called
*/
AudioQueueEnqueueBuffer (atdec->queue, input_buffer, 1, &packet);
/* figure out how many frames we need to pull out of the queue */
out_frames = GST_CLOCK_TIME_TO_FRAMES (GST_BUFFER_DURATION (buffer),
audio_info->rate);
size = out_frames * audio_info->bpf;
AudioQueueAllocateBuffer (atdec->queue, size, &output_buffer);
/* pull the frames */
AudioQueueOfflineRender (atdec->queue, ×tamp, output_buffer, out_frames);
if (output_buffer->mAudioDataByteSize) {
out =
gst_audio_decoder_allocate_output_buffer (decoder,
output_buffer->mAudioDataByteSize);
gst_buffer_map (out, &info, GST_MAP_WRITE);
memcpy (info.data, output_buffer->mAudioData,
output_buffer->mAudioDataByteSize);
gst_buffer_unmap (out, &info);
flow_ret = gst_audio_decoder_finish_frame (decoder, out, 1);
}
AudioQueueFreeBuffer (atdec->queue, output_buffer);
return flow_ret;
}
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;
}
/** @internal @This is called by AudioQueue after reading a buffer
* @param _upipe description structure of the pipe (void)
* @param queue AudioQueue
* @param qbuf AudioQueue buffer
*/
static void upipe_osx_audioqueue_sink_cb(void *_upipe, AudioQueueRef queue,
struct AudioQueueBuffer *qbuf)
{
/* TODO uncblock ? */
#if 0
struct upump_mgr *upump_mgr = qbuf->mUserData;
upump_mgr_sink_unblock(upump_mgr);
upump_mgr_release(upump_mgr);
#endif
AudioQueueFreeBuffer(queue, qbuf);
}
static Boolean DisposeBuffer(AudioQueueRef inAQ, std::vector<AudioQueueBufferRef> inDisposeBufferList, AudioQueueBufferRef inBufferToDispose)
{
for (unsigned int i=0; i < inDisposeBufferList.size(); i++)
{
if (inBufferToDispose == inDisposeBufferList[i])
{
OSStatus result = AudioQueueFreeBuffer(inAQ, inBufferToDispose);
if (result == noErr)
inDisposeBufferList.pop_back();
return true;
}
}
return false;
}
void clear_buffers()
{
if (d_owner->need_release && d_owner->queue)
{
for (core::vector<AudioQueueBufferRef>::iterator each = buffers.begin();
each != buffers.end();
++each)
{
if (*each != NULL)
{
AudioQueueFreeBuffer(d_owner->queue, *each);
*each = NULL;
}
}
}
}
void dealloc()
{
# ifdef NNT_MACH
if (d_owner->need_release)
{
for (core::vector<AudioQueueBufferRef>::iterator each = buffers.begin();
each != buffers.end();
++each)
{
AudioQueueFreeBuffer(d_owner->queue, *each);
}
}
# endif
}
u32 AudioPluginOSX::AudioThread(void * arg)
{
AudioPluginOSX * plugin = static_cast<AudioPluginOSX *>(arg);
AudioStreamBasicDescription format;
format.mSampleRate = kOutputFrequency;
format.mFormatID = kAudioFormatLinearPCM;
format.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
format.mBitsPerChannel = 8 * sizeof(s16);
format.mChannelsPerFrame = kNumChannels;
format.mBytesPerFrame = sizeof(s16) * kNumChannels;
format.mFramesPerPacket = 1;
format.mBytesPerPacket = format.mBytesPerFrame * format.mFramesPerPacket;
format.mReserved = 0;
AudioQueueRef queue;
AudioQueueBufferRef buffers[kNumBuffers];
AudioQueueNewOutput(&format, &AudioCallback, plugin, CFRunLoopGetCurrent(), kCFRunLoopCommonModes, 0, &queue);
for (u32 i = 0; i < kNumBuffers; ++i)
{
AudioQueueAllocateBuffer(queue, kAudioQueueBufferLength, &buffers[i]);
buffers[i]->mAudioDataByteSize = kAudioQueueBufferLength;
AudioCallback(plugin, queue, buffers[i]);
}
AudioQueueStart(queue, NULL);
CFRunLoopRun();
AudioQueueStop(queue, false);
AudioQueueDispose(queue, false);
for (u32 i = 0; i < kNumBuffers; ++i)
{
AudioQueueFreeBuffer(queue, buffers[i]);
buffers[i] = NULL;
}
return 0;
}
static void
macosx_play (int argc, char *argv [])
{ MacOSXAudioData audio_data ;
OSStatus err ;
int i ;
int k ;
memset (&audio_data, 0x55, sizeof (audio_data)) ;
for (k = 1 ; k < argc ; k++)
{ memset (&(audio_data.sfinfo), 0, sizeof (audio_data.sfinfo)) ;
printf ("Playing %s\n", argv [k]) ;
if (! (audio_data.sndfile = sf_open (argv [k], SFM_READ, &(audio_data.sfinfo))))
{ puts (sf_strerror (NULL)) ;
continue ;
} ;
if (audio_data.sfinfo.channels < 1 || audio_data.sfinfo.channels > 2)
{ printf ("Error : channels = %d.\n", audio_data.sfinfo.channels) ;
continue ;
} ;
/* fill ASBD */
audio_data.format.mSampleRate = audio_data.sfinfo.samplerate ;
audio_data.format.mChannelsPerFrame = audio_data.sfinfo.channels ;
audio_data.format.mFormatID = kAudioFormatLinearPCM ;
audio_data.format.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagsNativeEndian | kAudioFormatFlagIsPacked ;
audio_data.format.mBytesPerPacket = audio_data.format.mChannelsPerFrame * 2 ;
audio_data.format.mFramesPerPacket = 1 ;
audio_data.format.mBytesPerFrame = audio_data.format.mBytesPerPacket ;
audio_data.format.mBitsPerChannel = 16 ;
audio_data.format.mReserved = 0 ;
/* create the queue */
if ((err = AudioQueueNewOutput (&(audio_data.format), macosx_audio_out_callback, &audio_data,
CFRunLoopGetCurrent (), kCFRunLoopCommonModes, 0, &(audio_data.queue))) != noErr)
{ printf ("AudioQueueNewOutput failed\n") ;
return ;
} ;
/* add property listener */
if ((err = AudioQueueAddPropertyListener (audio_data.queue, kAudioQueueProperty_IsRunning, macosx_audio_out_property_callback, &audio_data)) != noErr)
{ printf ("AudioQueueAddPropertyListener failed\n") ;
return ;
} ;
/* create the buffers */
for (i = 0 ; i < kNumberOfAudioBuffers ; i++)
{ if ((err = AudioQueueAllocateBuffer (audio_data.queue, kBytesPerAudioBuffer, &audio_data.queueBuffer [i])) != noErr)
{ printf ("AudioQueueAllocateBuffer failed\n") ;
return ;
} ;
macosx_fill_buffer (&audio_data, audio_data.queueBuffer [i]) ;
} ;
audio_data.done_playing = SF_FALSE ;
/* start queue */
if ((err = AudioQueueStart (audio_data.queue, NULL)) != noErr)
{ printf ("AudioQueueStart failed\n") ;
return ;
} ;
while (audio_data.done_playing == SF_FALSE)
CFRunLoopRun () ;
/* free the buffers */
for (i = 0 ; i < kNumberOfAudioBuffers ; i++)
{ if ((err = AudioQueueFreeBuffer (audio_data.queue, audio_data.queueBuffer [i])) != noErr)
{ printf ("AudioQueueFreeBuffer failed\n") ;
return ;
} ;
} ;
/* free the queue */
if ((err = AudioQueueDispose (audio_data.queue, true)) != noErr)
{ printf ("AudioQueueDispose failed\n") ;
return ;
} ;
sf_close (audio_data.sndfile) ;
} ;
return ;
} /* macosx_play, AudioQueue implementation */
static void
gst_atdec_buffer_emptied (void *user_data, AudioQueueRef queue,
AudioQueueBufferRef buffer)
{
AudioQueueFreeBuffer (queue, buffer);
}