void GbApuEmulator::initializeAudioPlaybackQueue()
{
Float32 gain = 1.0;
// Create new output
int error = AudioQueueNewOutput(&(gbAPUState->dataFormat),
HandleOutputBuffer,
gbAPUState,
CFRunLoopGetCurrent(),
kCFRunLoopCommonModes,
0,
&(gbAPUState->queue));
if (error) printf("AudioQueueNewOutput: %d\n", error);
// Set buffer size
gbAPUState->numPacketsToRead = 735 * 4; // 44.1kHz at 60 fps = 735 (times 4 to reduce overhead)
gbAPUState->bufferByteSize = gbAPUState->numPacketsToRead * 2; // Packets times 16-bits per sample
// Allocate those bufferes
for (int i = 0; i < NUM_BUFFERS; ++i)
{
AudioQueueAllocateBuffer(gbAPUState->queue, gbAPUState->bufferByteSize, &(gbAPUState->buffers[i]));
if (error) printf("AudioQueueAllocateBuffer: %d\n", error);
}
AudioQueueSetParameter(gbAPUState->queue, kAudioQueueParam_Volume, gain);
}
void play() {
int i;
AudioStreamBasicDescription format;
AudioQueueRef queue;
AudioQueueBufferRef buffers[NUM_BUFFERS];
format.mSampleRate = SAMPLE_RATE;
format.mFormatID = kAudioFormatLinearPCM;
format.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger |
kAudioFormatFlagIsPacked;
format.mBitsPerChannel = 8*sizeof(SAMPLE_TYPE);
format.mChannelsPerFrame = NUM_CHANNELS;
format.mBytesPerFrame = sizeof(SAMPLE_TYPE)*NUM_CHANNELS;
format.mFramesPerPacket = 1;
format.mBytesPerPacket = format.mBytesPerFrame*format.mFramesPerPacket;
format.mReserved = 0;
AudioQueueNewOutput(&format, callback, NULL, CFRunLoopGetCurrent(),
kCFRunLoopCommonModes, 0, &queue);
for (i = 0; i < NUM_BUFFERS; i++) {
AudioQueueAllocateBuffer(queue, BUFFER_SIZE, &buffers[i]);
buffers[i]->mAudioDataByteSize = BUFFER_SIZE;
callback(NULL, queue, buffers[i]);
}
AudioQueueStart(queue, NULL);
CFRunLoopRun();
}
void CL_SoundOutput_MacOSX::mixer_thread_starting()
{
audio_format.mSampleRate = frequency;
audio_format.mFormatID = kAudioFormatLinearPCM;
audio_format.mFormatFlags = kAudioFormatFlagsCanonical;
audio_format.mBytesPerPacket = 2 * sizeof(short);
audio_format.mFramesPerPacket = 1;
audio_format.mBytesPerFrame = 2 * sizeof(short);
audio_format.mChannelsPerFrame = 2;
audio_format.mBitsPerChannel = sizeof(short) * 8;
audio_format.mReserved = 0;
OSStatus result = AudioQueueNewOutput(&audio_format, &CL_SoundOutput_MacOSX::static_audio_queue_callback, this, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode, 0, &audio_queue);
if (result != 0)
throw CL_Exception("AudioQueueNewOutput failed");
for (int i = 0; i < fragment_buffer_count; i++)
{
result = AudioQueueAllocateBuffer(audio_queue, fragment_size * sizeof(short) * 2, &audio_buffers[i]);
if (result != 0)
throw CL_Exception("AudioQueueAllocateBuffer failed");
audio_queue_callback(audio_queue, audio_buffers[i]);
}
result = AudioQueueStart(audio_queue, 0);
if (result != 0)
throw CL_Exception("AudioQueueStart failed");
}
music_obj<audio_queue_driver>::music_obj(const boost::shared_ptr<ifdstream>& ifd, bool loop, float gain,
float start, float end)
: packet_index_(0)
, start_packet_index_(0)
, stop_packet_index_(0)
, volume_(gain)
, loop_(loop)
, is_paused_(false)
, ifd_(ifd)
{
LOG("Got ifdstream from path..");
OSStatus res = AudioFileOpenWithCallbacks(this, &music_obj::af_read_cb, &music_obj::af_write_cb,
&music_obj::af_get_size_cb, &music_obj::af_set_size_cb,
kAudioFileCAFType, &audio_file_);
if(res)
{
throw sys_exception("audio_queue_driver: couldn't open audio file in liverpool fs. AudioFile returned "
+ boost::lexical_cast<std::string>(res));
}
UInt32 size = sizeof(data_format_);
AudioFileGetProperty(audio_file_, kAudioFilePropertyDataFormat, &size, &data_format_);
AudioQueueNewOutput(&data_format_, &music_obj<audio_queue_driver>::buffer_cb, this, NULL, NULL, 0, &queue_);
AudioQueueAddPropertyListener(queue_, kAudioQueueProperty_IsRunning, &music_obj<audio_queue_driver>::playback_cb, this);
if (data_format_.mBytesPerPacket == 0 || data_format_.mFramesPerPacket == 0)
{
size = sizeof(max_packet_size_);
AudioFileGetProperty(audio_file_, kAudioFilePropertyPacketSizeUpperBound, &size, &max_packet_size_);
if (max_packet_size_ > BUFFER_SIZE_BYTES)
{
max_packet_size_ = BUFFER_SIZE_BYTES;
}
num_packets_to_read_ = BUFFER_SIZE_BYTES / max_packet_size_;
packet_descriptions_ = (AudioStreamPacketDescription*)malloc(sizeof(AudioStreamPacketDescription) * num_packets_to_read_);
}
else
{
num_packets_to_read_ = BUFFER_SIZE_BYTES / data_format_.mBytesPerPacket;
packet_descriptions_ = NULL;
}
AudioFileGetPropertyInfo(audio_file_, kAudioFilePropertyMagicCookieData, &size, NULL);
if (size > 0)
{
char* cookie = (char*)malloc(sizeof(char) * size);
AudioFileGetProperty(audio_file_, kAudioFilePropertyMagicCookieData, &size, cookie);
AudioQueueSetProperty(queue_, kAudioQueueProperty_MagicCookie, cookie, size);
free(cookie);
}
calculate_seek(start, end);
volume(volume_);
prime();
}
int32_t setup_queue(
ALACMagicCookie cookie,
PlayerInfo *playerInfo,
uint32_t buffer_size,
uint32_t num_buffers,
uint32_t num_packets
) {
// Create Audio Queue for ALAC
AudioStreamBasicDescription inFormat = {0};
inFormat.mSampleRate = ntohl(cookie.sampleRate);
inFormat.mFormatID = kAudioFormatAppleLossless;
inFormat.mFormatFlags = 0; // ALAC uses no flags
inFormat.mBytesPerPacket = 0; // Variable size (must use AudioStreamPacketDescription)
inFormat.mFramesPerPacket = ntohl(cookie.frameLength);
inFormat.mBytesPerFrame = 0; // Compressed
inFormat.mChannelsPerFrame = 2; // Stero TODO: get from fmtp?
inFormat.mBitsPerChannel = 0; // Compressed
inFormat.mReserved = 0;
OSStatus err = AudioQueueNewOutput(
&inFormat,
c_callback,
playerInfo, // User data
NULL, // Run on audio queue's thread
NULL, // Callback run loop's mode
0, // Reserved
&playerInfo->queue);
if (err) return err;
// Need to set the magic cookie too (tail fmtp)
err = AudioQueueSetProperty(playerInfo->queue, kAudioQueueProperty_MagicCookie,
&cookie, sizeof(ALACMagicCookie));
if (err) return err;
// Create input buffers, and enqueue using callback
for (int i = 0; i < num_buffers; i++) {
AudioQueueBufferRef buffer;
err = AudioQueueAllocateBufferWithPacketDescriptions(
playerInfo->queue, buffer_size, num_packets, &buffer);
if (err) return err;
c_callback(playerInfo, playerInfo->queue, buffer);
}
// Volume full
err = AudioQueueSetParameter(playerInfo->queue, kAudioQueueParam_Volume, 1.0);
if (err) return err;
// Prime
err = AudioQueuePrime(playerInfo->queue, 0, NULL);
if (err) return err;
// Start
err = AudioQueueStart(playerInfo->queue, NULL);
if (err) return err;
return 0;
}
void Audio_Queue::init()
{
OSStatus err = noErr;
cleanup();
// 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__);
m_lastError = err;
if (m_delegate) {
m_delegate->audioQueueInitializationFailed();
}
return;
}
Stream_Configuration *configuration = Stream_Configuration::configuration();
// allocate audio queue buffers
for (unsigned int i = 0; i < configuration->bufferCount; ++i) {
err = AudioQueueAllocateBuffer(m_outAQ, configuration->bufferSize, &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;
m_lastError = err;
if (m_delegate) {
m_delegate->audioQueueInitializationFailed();
}
return;
}
}
// 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;
return;
}
if (m_initialOutputVolume != 1.0) {
setVolume(m_initialOutputVolume);
}
}
static int Open ( vlc_object_t *p_this )
{
audio_output_t *p_aout = (audio_output_t *)p_this;
struct aout_sys_t *p_sys = malloc(sizeof(aout_sys_t));
p_aout->sys = p_sys;
OSStatus status = 0;
// Setup the audio device.
AudioStreamBasicDescription deviceFormat;
deviceFormat.mSampleRate = 44100;
deviceFormat.mFormatID = kAudioFormatLinearPCM;
deviceFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger; // Signed integer, little endian
deviceFormat.mBytesPerPacket = 4;
deviceFormat.mFramesPerPacket = 1;
deviceFormat.mBytesPerFrame = 4;
deviceFormat.mChannelsPerFrame = 2;
deviceFormat.mBitsPerChannel = 16;
deviceFormat.mReserved = 0;
// Create a new output AudioQueue for the device.
status = AudioQueueNewOutput(&deviceFormat, // Format
AudioQueueCallback, // Callback
p_aout, // User data, passed to the callback
CFRunLoopGetMain(), // RunLoop
kCFRunLoopDefaultMode, // RunLoop mode
0, // Flags ; must be zero (per documentation)...
&(p_sys->audioQueue)); // Output
// This will be used for boosting the audio without the need of a mixer (floating-point conversion is expensive on ARM)
// AudioQueueSetParameter(p_sys->audioQueue, kAudioQueueParam_Volume, 12.0); // Defaults to 1.0
msg_Dbg(p_aout, "New AudioQueue output created (status = %i)", status);
// Allocate buffers for the AudioQueue, and pre-fill them.
for (int i = 0; i < NUMBER_OF_BUFFERS; ++i) {
AudioQueueBufferRef buffer = NULL;
status = AudioQueueAllocateBuffer(p_sys->audioQueue, FRAME_SIZE * 4, &buffer);
AudioQueueCallback(NULL, p_sys->audioQueue, buffer);
}
/* Volume is entirely done in software. */
aout_SoftVolumeInit( p_aout );
p_aout->format.i_format = VLC_CODEC_S16L;
p_aout->format.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
p_aout->format.i_rate = 44100;
aout_PacketInit(p_aout, &p_sys->packet, FRAME_SIZE);
p_aout->pf_play = aout_PacketPlay;
p_aout->pf_pause = aout_PacketPause;
p_aout->pf_flush = aout_PacketFlush;
msg_Dbg(p_aout, "Starting AudioQueue (status = %i)", status);
status = AudioQueueStart(p_sys->audioQueue, NULL);
return VLC_SUCCESS;
}
int app_OpenSound(int samples_per_sync, int sample_rate) {
Float64 sampleRate = 44100.0;
int i;
LOGDEBUG("app_SoundOpen()");
app_MuteSound();
if(preferences.muted)
{
return 0;
}
soundInit = 0;
in.mDataFormat.mSampleRate = sampleRate;
in.mDataFormat.mFormatID = kAudioFormatLinearPCM;
in.mDataFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger
| kAudioFormatFlagIsPacked;
in.mDataFormat.mBytesPerPacket = 4;
in.mDataFormat.mFramesPerPacket = 1;
in.mDataFormat.mBytesPerFrame = 2;
in.mDataFormat.mChannelsPerFrame = 2;
in.mDataFormat.mBitsPerChannel = 16;
/* Pre-buffer before we turn on audio */
UInt32 err;
err = AudioQueueNewOutput(&in.mDataFormat,
AQBufferCallback,
&in,
NULL,
kCFRunLoopCommonModes,
0,
&in.queue);
if (err) {
LOGDEBUG("AudioQueueNewOutput err %d\n", err);
}
in.frameCount = 512 * 1; //512; //(1024 * (16)) / 4;
UInt32 bufferBytes = in.frameCount * in.mDataFormat.mBytesPerFrame;
for (i=0; i<AUDIO_BUFFERS; i++) {
err = AudioQueueAllocateBuffer(in.queue, bufferBytes, &in.mBuffers[i]);
if (err) {
LOGDEBUG("AudioQueueAllocateBuffer[%d] err %d\n",i, err);
}
/* "Prime" by calling the callback once per buffer */
AQBufferCallback (&in, in.queue, in.mBuffers[i]);
}
soundInit = 1;
LOGDEBUG("app_QueueSample.AudioQueueStart");
err = AudioQueueStart(in.queue, NULL);
return 0;
}
void MyPropertyListenerProc( void * inClientData,
AudioFileStreamID inAudioFileStream,
AudioFileStreamPropertyID inPropertyID,
UInt32 * ioFlags)
{
// this is called by audio file stream when it finds property values
MyData* myData = (MyData*)inClientData;
OSStatus err = noErr;
printf("found property '%c%c%c%c'\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;
UInt32 asbdSize = sizeof(asbd);
err = AudioFileStreamGetProperty(inAudioFileStream, kAudioFileStreamProperty_DataFormat, &asbdSize, &asbd);
if (err) { PRINTERROR("get kAudioFileStreamProperty_DataFormat"); myData->failed = true; break; }
// create the audio queue
err = AudioQueueNewOutput(&asbd, MyAudioQueueOutputCallback, myData, NULL, NULL, 0, &myData->audioQueue);
if (err) { PRINTERROR("AudioQueueNewOutput"); myData->failed = true; break; }
// allocate audio queue buffers
for (unsigned int i = 0; i < kNumAQBufs; ++i) {
err = AudioQueueAllocateBuffer(myData->audioQueue, kAQBufSize, &myData->audioQueueBuffer[i]);
if (err) { PRINTERROR("AudioQueueAllocateBuffer"); myData->failed = true; break; }
}
// get the cookie size
UInt32 cookieSize;
Boolean writable;
err = AudioFileStreamGetPropertyInfo(inAudioFileStream, kAudioFileStreamProperty_MagicCookieData, &cookieSize, &writable);
if (err) { PRINTERROR("info kAudioFileStreamProperty_MagicCookieData"); break; }
printf("cookieSize %d\n", cookieSize);
// get the cookie data
void* cookieData = calloc(1, cookieSize);
err = AudioFileStreamGetProperty(inAudioFileStream, kAudioFileStreamProperty_MagicCookieData, &cookieSize, cookieData);
if (err) { PRINTERROR("get kAudioFileStreamProperty_MagicCookieData"); free(cookieData); break; }
// set the cookie on the queue.
err = AudioQueueSetProperty(myData->audioQueue, kAudioQueueProperty_MagicCookie, cookieData, cookieSize);
free(cookieData);
if (err) { PRINTERROR("set kAudioQueueProperty_MagicCookie"); break; }
// listen for kAudioQueueProperty_IsRunning
err = AudioQueueAddPropertyListener(myData->audioQueue, kAudioQueueProperty_IsRunning, MyAudioQueueIsRunningCallback, myData);
if (err) { PRINTERROR("AudioQueueAddPropertyListener"); myData->failed = true; break; }
break;
}
}
}
music_obj<audio_queue_driver>::music_obj(const std::string& file_path, bool loop, float gain,
float start, float end)
: packet_index_(0)
, start_packet_index_(0)
, stop_packet_index_(0)
, volume_(gain)
, loop_(loop)
, is_paused_(false)
{
CFURLRef file_url = CFURLCreateFromFileSystemRepresentation(NULL, (const UInt8 *)file_path.c_str(), file_path.size(), false);
OSStatus res = AudioFileOpenURL(file_url, kAudioFileReadPermission, kAudioFileCAFType, &audio_file_);
CFRelease(file_url);
if(res)
{
throw sys_exception("audio_queue_driver: couldn't open audio file at '" + file_path + "'");
}
UInt32 size = sizeof(data_format_);
AudioFileGetProperty(audio_file_, kAudioFilePropertyDataFormat, &size, &data_format_);
AudioQueueNewOutput(&data_format_, &music_obj<audio_queue_driver>::buffer_cb, this, NULL, NULL, 0, &queue_);
AudioQueueAddPropertyListener(queue_, kAudioQueueProperty_IsRunning, &music_obj<audio_queue_driver>::playback_cb, this);
if (data_format_.mBytesPerPacket == 0 || data_format_.mFramesPerPacket == 0)
{
size = sizeof(max_packet_size_);
AudioFileGetProperty(audio_file_, kAudioFilePropertyPacketSizeUpperBound, &size, &max_packet_size_);
if (max_packet_size_ > BUFFER_SIZE_BYTES)
{
max_packet_size_ = BUFFER_SIZE_BYTES;
}
num_packets_to_read_ = BUFFER_SIZE_BYTES / max_packet_size_;
packet_descriptions_ = (AudioStreamPacketDescription*)malloc(sizeof(AudioStreamPacketDescription) * num_packets_to_read_);
}
else
{
num_packets_to_read_ = BUFFER_SIZE_BYTES / data_format_.mBytesPerPacket;
packet_descriptions_ = NULL;
}
AudioFileGetPropertyInfo(audio_file_, kAudioFilePropertyMagicCookieData, &size, NULL);
if (size > 0)
{
char* cookie = (char*)malloc(sizeof(char) * size);
AudioFileGetProperty(audio_file_, kAudioFilePropertyMagicCookieData, &size, cookie);
AudioQueueSetProperty(queue_, kAudioQueueProperty_MagicCookie, cookie, size);
free(cookie);
}
calculate_seek(start, end);
volume(volume_);
prime();
}
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;
}
}
}
static void rdpsnd_audio_open(rdpsndDevicePlugin* device, AUDIO_FORMAT* format, int latency)
{
int rv;
int i;
rdpsndAudioQPlugin* aq_plugin_p = (rdpsndAudioQPlugin *) device;
if (aq_plugin_p->is_open) {
return;
}
aq_plugin_p->buf_index = 0;
// setup AudioStreamBasicDescription
aq_plugin_p->data_format.mSampleRate = 44100;
aq_plugin_p->data_format.mFormatID = kAudioFormatLinearPCM;
aq_plugin_p->data_format.mFormatFlags = kAudioFormatFlagIsSignedInteger | kLinearPCMFormatFlagIsPacked;
// until we know better, assume that one packet = one frame
// one frame = bytes_per_sample x number_of_channels
aq_plugin_p->data_format.mBytesPerPacket = 4;
aq_plugin_p->data_format.mFramesPerPacket = 1;
aq_plugin_p->data_format.mBytesPerFrame = 4;
aq_plugin_p->data_format.mChannelsPerFrame = 2;
aq_plugin_p->data_format.mBitsPerChannel = 16;
rv = AudioQueueNewOutput(
&aq_plugin_p->data_format, // audio stream basic desc
aq_playback_cb, // callback when more data is required
aq_plugin_p, // data to pass to callback
CFRunLoopGetCurrent(), // The current run loop, and the one on
// which the audio queue playback callback
// will be invoked
kCFRunLoopCommonModes, // run loop modes in which callbacks can
// be invoked
0, // flags - reserved
&aq_plugin_p->aq_ref
);
if (rv != 0) {
printf("rdpsnd_audio_open: AudioQueueNewOutput() failed with error %d\n", rv);
aq_plugin_p->is_open = 1;
return;
}
for (i = 0; i < AQ_NUM_BUFFERS; i++)
{
rv = AudioQueueAllocateBuffer(aq_plugin_p->aq_ref, AQ_BUF_SIZE, &aq_plugin_p->buffers[i]);
}
aq_plugin_p->is_open = 1;
}
void CAudioQueueManager::setupQueue() {
OSStatus res = AudioQueueNewOutput(&_dataFormat, HandleOutputBuffer, this, CFRunLoopGetCurrent(), kCFRunLoopCommonModes, 0, &_queue);
for (int i = 0; i < kNumberBuffers; i++) {
res = AudioQueueAllocateBuffer(_queue, _bytesPerFrame, &_buffers[i]);
HandleOutputBuffer(this, _queue, _buffers[i]);
}
if (_autoStart) {
_isRunning = true;
res = AudioQueueStart(_queue, NULL);
}
_isInitialized = true;
}
int playbuffer(void *pcmbuffer, unsigned long len) {
AQCallbackStruct aqc;
UInt32 err, bufferSize;
int i;
aqc.mDataFormat.mSampleRate = SAMPLE_RATE;
aqc.mDataFormat.mFormatID = kAudioFormatLinearPCM;
aqc.mDataFormat.mFormatFlags =
kLinearPCMFormatFlagIsSignedInteger
| kAudioFormatFlagIsPacked;
aqc.mDataFormat.mBytesPerPacket = 4;
aqc.mDataFormat.mFramesPerPacket = 1;
aqc.mDataFormat.mBytesPerFrame = 4;
aqc.mDataFormat.mChannelsPerFrame = 2;
aqc.mDataFormat.mBitsPerChannel = 16;
aqc.frameCount = FRAME_COUNT;
aqc.sampleLen = len / BYTES_PER_SAMPLE;
aqc.playPtr = 0;
aqc.pcmBuffer = (sampleFrame *)pcmbuffer;
err = AudioQueueNewOutput(&aqc.mDataFormat,
AQBufferCallback,
&aqc,
NULL,
kCFRunLoopCommonModes,
0,
&aqc.queue);
if (err)
return err;
aqc.frameCount = FRAME_COUNT;
bufferSize = aqc.frameCount * aqc.mDataFormat.mBytesPerFrame;
for (i=0; i<AUDIO_BUFFERS; i++) {
err = AudioQueueAllocateBuffer(aqc.queue, bufferSize,
&aqc.mBuffers[i]);
if (err)
return err;
AQBufferCallback(&aqc, aqc.queue, aqc.mBuffers[i]);
}
err = AudioQueueStart(aqc.queue, NULL);
if (err)
return err;
struct timeval tv = {1.0, 0};
while(aqc.playPtr < aqc.sampleLen) { select(0, NULL, NULL, NULL, &tv); }
sleep(1);
return 0;
}
/** @internal @This creates a new audioqueue
* @param upipe description structure of the pipe
* @param flow description structure of the flow
* @return an error code
*/
static int upipe_osx_audioqueue_sink_set_flow_def(struct upipe *upipe,
struct uref *flow)
{
OSStatus status;
uint64_t sample_rate = 0; /* hush gcc */
uint8_t channels = 0;
uint8_t sample_size = 0;
struct AudioStreamBasicDescription fmt;
struct upipe_osx_audioqueue_sink *osx_audioqueue =
upipe_osx_audioqueue_sink_from_upipe(upipe);
if (unlikely(osx_audioqueue->queue)) {
upipe_osx_audioqueue_sink_remove(upipe);
}
/* retrieve flow format information */
uref_sound_flow_get_rate(flow, &sample_rate);
uref_sound_flow_get_sample_size(flow, &sample_size);
uref_sound_flow_get_channels(flow, &channels);
/* build format description */
memset(&fmt, 0, sizeof(struct AudioStreamBasicDescription));
fmt.mSampleRate = sample_rate;
fmt.mFormatID = kAudioFormatLinearPCM;
fmt.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
fmt.mFramesPerPacket = 1;
fmt.mChannelsPerFrame = channels;
fmt.mBytesPerPacket = fmt.mBytesPerFrame = sample_size * channels;
fmt.mBitsPerChannel = sample_size * 8;
/* create queue */
status = AudioQueueNewOutput(&fmt, upipe_osx_audioqueue_sink_cb, upipe,
NULL, kCFRunLoopCommonModes, 0, &osx_audioqueue->queue);
if (unlikely(status == kAudioFormatUnsupportedDataFormatError)) {
upipe_warn(upipe, "unsupported data format");
return UBASE_ERR_EXTERNAL;
}
/* change volume */
AudioQueueSetParameter(osx_audioqueue->queue, kAudioQueueParam_Volume,
osx_audioqueue->volume);
/* start queue ! */
AudioQueueStart(osx_audioqueue->queue, NULL);
upipe_notice_va(upipe, "audioqueue started (%uHz, %hhuch, %db)",
sample_rate, channels, sample_size*8);
return UBASE_ERR_NONE;
}
int app_OpenSound(int buffersize) {
Float64 sampleRate = 22050.0;
int i;
UInt32 bufferBytes;
soundBufferSize = buffersize;
app_MuteSound();
soundInit = 0;
in.mDataFormat.mSampleRate = sampleRate;
in.mDataFormat.mFormatID = kAudioFormatLinearPCM;
in.mDataFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger
| kAudioFormatFlagIsPacked;
in.mDataFormat.mBytesPerPacket = 4;
in.mDataFormat.mFramesPerPacket = isStereo ? 1 : 2;
in.mDataFormat.mBytesPerFrame = isStereo ? 4 : 2;
in.mDataFormat.mChannelsPerFrame = isStereo ? 2 : 1;
in.mDataFormat.mBitsPerChannel = 16;
/* Pre-buffer before we turn on audio */
UInt32 err;
err = AudioQueueNewOutput(&in.mDataFormat,
AQBufferCallback,
NULL,
NULL,
kCFRunLoopCommonModes,
0,
&in.queue);
bufferBytes = AUDIO_BUFFER_SIZE;
for (i=0; i<AUDIO_BUFFERS; i++)
{
err = AudioQueueAllocateBuffer(in.queue, bufferBytes, &in.mBuffers[i]);
/* "Prime" by calling the callback once per buffer */
//AQBufferCallback (&in, in.queue, in.mBuffers[i]);
in.mBuffers[i]->mAudioDataByteSize = AUDIO_BUFFER_SIZE; //samples_per_frame * 2; //inData->mDataFormat.mBytesPerFrame; //(inData->frameCount * 4 < (sndOutLen) ? inData->frameCount * 4 : (sndOutLen));
AudioQueueEnqueueBuffer(in.queue, in.mBuffers[i], 0, NULL);
}
soundInit = 1;
err = AudioQueueStart(in.queue, NULL);
return 0;
}
bool QueueAudioData::init()
{
OSStatus status = 0;
//
// Setup the audio device.
//
AudioStreamBasicDescription deviceFormat;
deviceFormat.mSampleRate = 44100;
deviceFormat.mFormatID = kAudioFormatLinearPCM;
deviceFormat.mFormatFlags = kLinearPCMFormatFlagIsFloat;
deviceFormat.mBytesPerPacket = 8;
deviceFormat.mFramesPerPacket = 1;
deviceFormat.mBytesPerFrame = 8;
deviceFormat.mChannelsPerFrame = 2;
deviceFormat.mBitsPerChannel = 32;
deviceFormat.mReserved = 0;
//
// Create a new output AudioQueue
// for the device.
//
status = AudioQueueNewOutput(&deviceFormat, // Format
processAudio, // Callback
this, // User data, passed to the callback
CFRunLoopGetMain(), // RunLoop
0, // kCFRunLoopDefaultMode, // RunLoop mode
0, // Flags ; must be zero (per documentation)...
&audioQueue); // Output
Float32 volume = 1.0;
AudioQueueSetParameter(audioQueue, kAudioQueueParam_Volume, volume);
//
// Allocate buffers for the AudioQueue,
// and pre-fill them.
//
static const int size = FRAME_SIZE * sizeof(float) * 2;
for (int i = 0; i < NUMBER_OF_BUFFERS; ++i) {
AudioQueueBufferRef buffer = 0;
AudioQueueAllocateBuffer(audioQueue, size, &buffer);
int n = buffer->mAudioDataBytesCapacity;
memset(buffer->mAudioData, 0, n);
buffer->mAudioDataByteSize = n;
AudioQueueEnqueueBuffer(audioQueue, buffer, 0, 0);
}
initialized = true;
return true;
}
int SIOpenSound(int buffersize)
{
SI_SoundIsInit = 0;
SI_AudioOffset = 0;
if(SI_AQCallbackStruct.queue != 0)
AudioQueueDispose(SI_AQCallbackStruct.queue, true);
SI_AQCallbackCount = 0;
memset(&SI_AQCallbackStruct, 0, sizeof(AQCallbackStruct));
Float64 sampleRate = 22050.0;
sampleRate = Settings.SoundPlaybackRate;
SI_SoundBufferSizeBytes = buffersize;
SI_AQCallbackStruct.mDataFormat.mSampleRate = sampleRate;
SI_AQCallbackStruct.mDataFormat.mFormatID = kAudioFormatLinearPCM;
SI_AQCallbackStruct.mDataFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
SI_AQCallbackStruct.mDataFormat.mBytesPerPacket = 4;
SI_AQCallbackStruct.mDataFormat.mFramesPerPacket = SI_IsStereo ? 1 : 2;
SI_AQCallbackStruct.mDataFormat.mBytesPerFrame = SI_IsStereo ? 4 : 2;
SI_AQCallbackStruct.mDataFormat.mChannelsPerFrame = SI_IsStereo ? 2 : 1;
SI_AQCallbackStruct.mDataFormat.mBitsPerChannel = Settings.SixteenBitSound ? 16: 8;
/* Pre-buffer before we turn on audio */
UInt32 err;
err = AudioQueueNewOutput(&SI_AQCallbackStruct.mDataFormat,
AQBufferCallback,
NULL,
NULL,
kCFRunLoopCommonModes,
0,
&SI_AQCallbackStruct.queue);
for(int i=0; i<SI_AUDIO_BUFFER_COUNT; i++)
{
err = AudioQueueAllocateBuffer(SI_AQCallbackStruct.queue, SI_SoundBufferSizeBytes, &SI_AQCallbackStruct.mBuffers[i]);
memset(SI_AQCallbackStruct.mBuffers[i]->mAudioData, 0, SI_SoundBufferSizeBytes);
SI_AQCallbackStruct.mBuffers[i]->mAudioDataByteSize = SI_SoundBufferSizeBytes; //samples_per_frame * 2; //inData->mDataFormat.mBytesPerFrame; //(inData->frameCount * 4 < (sndOutLen) ? inData->frameCount * 4 : (sndOutLen));
AudioQueueEnqueueBuffer(SI_AQCallbackStruct.queue, SI_AQCallbackStruct.mBuffers[i], 0, NULL);
}
SI_SoundIsInit = 1;
err = AudioQueueStart(SI_AQCallbackStruct.queue, NULL);
return 0;
}
void AudioStreamDecoder::PropertyCallback(AudioFileStreamID stream, AudioFileStreamPropertyID property, UInt32* flags)
{
if (property != kAudioFileStreamProperty_ReadyToProducePackets)
return;
long err;
void* buffer = NULL;
unsigned char writable;
AudioStreamBasicDescription desc = {0};
UInt32 size = sizeof(desc);
BAIL_IF(!stream || stream != mStream, "Invalid stream %p\n", stream);
err = AudioFileStreamGetProperty(mStream, kAudioFileStreamProperty_DataFormat, &size, &desc);
BAIL_IF(err, "AudioFileStreamGetProperty returned %ld\n", err);
err = AudioQueueNewOutput(&desc, StaticBufferCompleteCallback, this, NULL, NULL, 0, &mQueue);
BAIL_IF(err, "AudioQueueNewOutput returned %ld\n", err);
err = AudioQueueAddPropertyListener(mQueue, kAudioQueueProperty_IsRunning, StaticQueueRunningCallback, this);
BAIL_IF(err, "AudioQueueAddPropertyListener returned %ld\n", err);
for (int i = 0; i < kBufferCount; i++)
{
err = AudioQueueAllocateBufferWithPacketDescriptions(mQueue, kBufferSize, kBufferPacketDescs, mBuffers + i);
BAIL_IF(err, "AudioQueueAllocateBuffer returned %ld\n", err);
}
mCurrentBuffer = mBuffers;
(*mCurrentBuffer)->mUserData = this;
err = AudioFileStreamGetPropertyInfo(mStream, kAudioFileStreamProperty_MagicCookieData, &size, &writable);
BAIL_IF(err, "AudioFileStreamGetPropertyInfo returned %ld\n", err);
buffer = malloc(size);
BAIL_IF(!buffer, "Failed to allocate %u byte buffer for cookie\n", (unsigned int)size);
err = AudioFileStreamGetProperty(mStream, kAudioFileStreamProperty_MagicCookieData, &size, buffer);
BAIL_IF(err, "AudioFileStreamGetProperty returned %ld\n", err);
err = AudioQueueSetProperty(mQueue, kAudioQueueProperty_MagicCookie, buffer, size);
BAIL_IF(err, "AudioQueueSetProperty returned %ld\n", err);
bail:
free(buffer);
}
void DZAudioQueuePlayer::onProperty(AudioFileStreamPropertyID pID)
{
UInt32 propertySize = 0;
switch (pID) {
// Create audio queue with given data format.
case kAudioFileStreamProperty_DataFormat:
propertySize = sizeof(this->_format);
if (dzDebugOK(AudioFileStreamGetProperty(this->_parser, pID, &(propertySize), &(this->_format)), "Fail to get audio file stream property: DataFormat.")) {
if (this->_queue != NULL) {
dzDebug(!noErr, "Audio file stream duplicated data format.");
} else {
if (dzDebugError(AudioQueueNewOutput(&(this->_format), QueueCallback, this, CFRunLoopGetCurrent(), kCFRunLoopCommonModes, 0, &(this->_queue)), "Create new output audio queue failed.")) {
this->_queue = NULL;
}
}
}
break;
// Extract magic cookie data.
case kAudioFileStreamProperty_MagicCookieData:
if (noErr == AudioFileStreamGetPropertyInfo(this->_parser, pID, &(propertySize), NULL)) {
this->_magicCookie = malloc(propertySize);
this->_magicCookieSize = propertySize;
if (this->_magicCookie != NULL && dzDebugError(AudioFileStreamGetProperty(this->_parser, pID, &(propertySize), this->_magicCookie), "Fail to get audio file stream property: MagicCookieData.")) {
free(this->_magicCookie);
this->_magicCookie = NULL;
this->_magicCookieSize = 0;
}
}
break;
// Set magic cookie data if any. (Queue shall be already created.)
case kAudioFileStreamProperty_ReadyToProducePackets:
if (this->_queue != NULL && this->_magicCookie != NULL) {
dzDebug(AudioQueueSetProperty(this->_queue, kAudioQueueProperty_MagicCookie, this->_magicCookie, this->_magicCookieSize), "Fail to set audio queue property: MagicCookie.");
}
if (this->_queue != NULL && this->_parser != NULL) {
this->_status = DZAudioQueuePlayerStatus_ReadyToStart;
}
break;
default:
break;
}
}
int app_OpenSound()
{
Float64 sampleRate = 44100.0;
int i;
UInt32 bufferBytes;
Uint32 err;
app_MuteSound();
soundInit = 0;
if(!config.enable_sound)
return 0;
in.mDataFormat.mSampleRate = sampleRate;
in.mDataFormat.mFormatID = kAudioFormatLinearPCM;
in.mDataFormat.mFormatFlags =
kLinearPCMFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
in.mDataFormat.mBytesPerPacket = 4;
in.mDataFormat.mFramesPerPacket = 2;
in.mDataFormat.mBytesPerFrame = 2;
in.mDataFormat.mChannelsPerFrame = 1;
in.mDataFormat.mBitsPerChannel = 16;
// Pre-buffer before we turn on audio
err = AudioQueueNewOutput(&in.mDataFormat, AQBufferCallback,
NULL, NULL, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode,
0, &in.queue);
bufferBytes = IPHONE_AUDIO_BUFFER_SIZE;
for(i = 0; i < IPHONE_AUDIO_BUFFERS; i++)
{
err = AudioQueueAllocateBuffer(in.queue, bufferBytes, &in.mBuffers[i]);
in.mBuffers[i]->mAudioDataByteSize = IPHONE_AUDIO_BUFFER_SIZE;
// "Prime" by calling the callback once per buffer
AudioQueueEnqueueBuffer(in.queue, in.mBuffers[i], 0, NULL);
}
soundInit = 1;
err = AudioQueueStart(in.queue, NULL);
return 0;
}
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;
}
bool IPhoneSoundDevice::Init()
{
// Initialize the default audio session object to tell it
// to allow background music, and to tell us when audio
// gets resumed (like if a phone call comes in, iphone takes
// over audio. If the user then ignores the phone call, the
// audio needs to be turned on again.
AudioSessionInitialize(NULL, NULL, wi::InterruptionListener, this);
UInt32 category = kAudioSessionCategory_UserInterfaceSoundEffects;
AudioSessionSetProperty(kAudioSessionProperty_AudioCategory,
sizeof(category), &category);
AudioSessionSetActive(true);
// Set up streaming
AudioStreamBasicDescription desc;
desc.mSampleRate = 8000;
desc.mFormatID = kAudioFormatLinearPCM;
desc.mFormatFlags = kAudioFormatFlagIsPacked;
desc.mBytesPerPacket = 1;
desc.mFramesPerPacket = 1;
desc.mBytesPerFrame = 1;
desc.mChannelsPerFrame = 1;
desc.mBitsPerChannel = 8;
OSStatus err = AudioQueueNewOutput(&desc, AudioCallback, this,
NULL,
kCFRunLoopCommonModes,
0, &m_haq);
if (err != 0) {
return false;
}
for (int i = 0; i < kcBuffers; i++) {
err = AudioQueueAllocateBuffer(m_haq, kcbBuffer, &m_apaqb[i]);
if (err != 0) {
return false;
}
}
return true;
}
OSStatus SetupQueue(BG_FileInfo *inFileInfo)
{
UInt32 size = 0;
OSStatus result = AudioQueueNewOutput(&inFileInfo->mFileFormat, QueueCallback, this, CFRunLoopGetCurrent(), kCFRunLoopCommonModes, 0, &mQueue);
AssertNoError("Error creating queue", end);
// (2) If the file has a cookie, we should get it and set it on the AQ
size = sizeof(UInt32);
result = AudioFileGetPropertyInfo (inFileInfo->mAFID, kAudioFilePropertyMagicCookieData, &size, NULL);
if (!result && size) {
char* cookie = new char [size];
result = AudioFileGetProperty (inFileInfo->mAFID, kAudioFilePropertyMagicCookieData, &size, cookie);
AssertNoError("Error getting magic cookie", end);
result = AudioQueueSetProperty(mQueue, kAudioQueueProperty_MagicCookie, cookie, size);
delete [] cookie;
AssertNoError("Error setting magic cookie", end);
}
// channel layout
OSStatus err = AudioFileGetPropertyInfo(inFileInfo->mAFID, kAudioFilePropertyChannelLayout, &size, NULL);
if (err == noErr && size > 0) {
AudioChannelLayout *acl = (AudioChannelLayout *)malloc(size);
result = AudioFileGetProperty(inFileInfo->mAFID, kAudioFilePropertyChannelLayout, &size, acl);
AssertNoError("Error getting channel layout from file", end);
result = AudioQueueSetProperty(mQueue, kAudioQueueProperty_ChannelLayout, acl, size);
free(acl);
AssertNoError("Error setting channel layout on queue", end);
}
// add a notification proc for when the queue stops
result = AudioQueueAddPropertyListener(mQueue, kAudioQueueProperty_IsRunning, QueueStoppedProc, this);
AssertNoError("Error adding isRunning property listener to queue", end);
// we need to reset this variable so that if the queue is stopped mid buffer we don't dispose it
mMakeNewQueueWhenStopped = false;
// volume
result = SetVolume(mVolume);
//end:
return result;
}
void audio_init(audio_player_t *player) {
int i;
TAILQ_INIT(&player->af.q);
player->af.qlen = 0;
pthread_mutex_init(&player->af.mutex, NULL);
pthread_cond_init(&player->af.cond, NULL);
player->internal_state = malloc(sizeof(state_t));
state_t *state = (state_t *) player->internal_state;
bzero(state, sizeof(state_t));
state->desc.mFormatID = kAudioFormatLinearPCM;
state->desc.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
state->desc.mSampleRate = 44100;
state->desc.mChannelsPerFrame = 2;
state->desc.mFramesPerPacket = 1;
state->desc.mBytesPerFrame = sizeof (short) * state->desc.mChannelsPerFrame;
state->desc.mBytesPerPacket = state->desc.mBytesPerFrame;
state->desc.mBitsPerChannel = (state->desc.mBytesPerFrame*8) / state->desc.mChannelsPerFrame;
state->desc.mReserved = 0;
state->buffer_size = state->desc.mBytesPerFrame * state->desc.mSampleRate;
if (noErr != AudioQueueNewOutput(&state->desc, audio_callback, player, NULL, NULL, 0, &state->queue)) {
fprintf(stderr, "audioqueue error\n");
return;
}
AudioQueueAddPropertyListener(state->queue, kAudioQueueProperty_IsRunning, stopped_callback, player);
// Start some empty playback so we'll get the callbacks that fill in the actual audio.
for (i = 0; i < BUFFER_COUNT; ++i) {
AudioQueueAllocateBuffer(state->queue, state->buffer_size, &state->buffers[i]);
state->free_buffers[i] = state->buffers[i];
}
state->free_buffer_count = BUFFER_COUNT;
state->playing = false;
state->should_stop = false;
}
void audio_init(audio_fifo_t *af)
{
int i;
TAILQ_INIT(&af->q);
af->qlen = 0;
pthread_mutex_init(&af->mutex, NULL);
pthread_cond_init(&af->cond, NULL);
bzero(&state, sizeof(state));
state.desc.mFormatID = kAudioFormatLinearPCM;
state.desc.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
state.desc.mSampleRate = 44100;
state.desc.mChannelsPerFrame = 2;
state.desc.mFramesPerPacket = 1;
state.desc.mBytesPerFrame = sizeof(short) * state.desc.mChannelsPerFrame;
state.desc.mBytesPerPacket = state.desc.mBytesPerFrame;
state.desc.mBitsPerChannel = (state.desc.mBytesPerFrame*8)/state.desc.mChannelsPerFrame;
state.desc.mReserved = 0;
state.buffer_size = state.desc.mBytesPerFrame * kSampleCountPerBuffer;
if (noErr != AudioQueueNewOutput(&state.desc, audio_callback, af, NULL, NULL, 0, &state.queue)) {
printf("audioqueue error\n");
return;
}
// Start some empty playback so we'll get the callbacks that fill in the actual audio.
for (i = 0; i < BUFFER_COUNT; ++i) {
AudioQueueAllocateBuffer(state.queue, state.buffer_size, &state.buffers[i]);
state.buffers[i]->mAudioDataByteSize = state.buffer_size;
AudioQueueEnqueueBuffer(state.queue, state.buffers[i], 0, NULL);
}
if (noErr != AudioQueueStart(state.queue, NULL)) puts("AudioQueueStart failed");
}
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;
}
}
}
bool load(CFURLRef url) {
OSStatus status;
memset(&aqData,0,sizeof(aqData));
timeBase = 0;
status = AudioFileOpenURL(url,kAudioFileReadPermission,0,&aqData.mAudioFile);
checkStatus(status);
if( status != noErr ) return false;
UInt32 dataFormatSize = sizeof (aqData.mDataFormat); // 1
status = AudioFileGetProperty ( // 2
aqData.mAudioFile, // 3
kAudioFilePropertyDataFormat, // 4
&dataFormatSize, // 5
&aqData.mDataFormat // 6
);
checkStatus(status);
status = AudioQueueNewOutput ( // 1
&aqData.mDataFormat, // 2
HandleOutputBuffer, // 3
&aqData, // 4
CFRunLoopGetCurrent (), // 5
kCFRunLoopCommonModes, // 6
0, // 7
&aqData.mQueue // 8
);
checkStatus(status);
UInt32 maxPacketSize;
UInt32 propertySize = sizeof (maxPacketSize);
status = AudioFileGetProperty ( // 1
aqData.mAudioFile, // 2
kAudioFilePropertyPacketSizeUpperBound, // 3
&propertySize, // 4
&maxPacketSize // 5
);
checkStatus(status);
deriveBufferSize ( // 6
aqData.mDataFormat, // 7
maxPacketSize, // 8
0.5, // 9
&aqData.bufferByteSize, // 10
&aqData.mNumPacketsToRead // 11
);
bool isFormatVBR = ( // 1
aqData.mDataFormat.mBytesPerPacket == 0 ||
aqData.mDataFormat.mFramesPerPacket == 0
);
if (isFormatVBR) { // 2
aqData.mPacketDescs =
(AudioStreamPacketDescription*) malloc (
aqData.mNumPacketsToRead * sizeof (AudioStreamPacketDescription)
);
} else { // 3
aqData.mPacketDescs = NULL;
}
UInt32 cookieSize = sizeof (UInt32); // 1
OSStatus couldNotGetProperty = // 2
AudioFileGetPropertyInfo ( // 3
aqData.mAudioFile, // 4
kAudioFilePropertyMagicCookieData, // 5
&cookieSize, // 6
NULL // 7
);
// checkStatus(couldNotGetProperty);
if (!couldNotGetProperty && cookieSize) { // 8
char* magicCookie =
(char *) malloc (cookieSize);
status = AudioFileGetProperty ( // 9
aqData.mAudioFile, // 10
kAudioFilePropertyMagicCookieData, // 11
&cookieSize, // 12
magicCookie // 13
);
checkStatus(status);
status = AudioQueueSetProperty ( // 14
aqData.mQueue, // 15
kAudioQueueProperty_MagicCookie, // 16
magicCookie, // 17
cookieSize // 18
);
checkStatus(status);
free (magicCookie); // 19
}
return true;
}
int main (int argc, const char *argv[])
{
OSStatus result;
State *state = NULL;
if (argc != 2) {
printf("Usage: play <file>\n");
goto error;
}
state = StateCreate();
//
// open the audio file
//
CFURLRef fileURL = CFURLCreateFromFileSystemRepresentation(
kCFAllocatorDefault,
(const UInt8*)argv[1],
strlen(argv[1]),
false
);
if (!fileURL) {
Error("Invalid filename");
goto error;
}
result = AudioFileOpenURL(
fileURL,
kAudioFileReadPermission,
0,
&state->audioFile
);
CFRelease(fileURL);
if (result) {
Error("Invalid audio file");
goto error;
}
//
// determine properties of stream including maximum packet size
//
UInt32 propertyDataSize;
AudioStreamBasicDescription streamDescription;
propertyDataSize = sizeof(streamDescription);
result = AudioFileGetProperty(
state->audioFile,
kAudioFilePropertyDataFormat,
&propertyDataSize,
&streamDescription
);
if (result) {
Error(NULL);
goto error;
}
UInt32 maximumPacketSize;
propertyDataSize = sizeof(maximumPacketSize);
result = AudioFileGetProperty(
state->audioFile,
kAudioFilePropertyMaximumPacketSize,
&propertyDataSize,
&maximumPacketSize
);
if (result) {
Error(NULL);
goto error;
}
//
// initialize the audio queue and allocate buffers
//
result = AudioQueueNewOutput(
&streamDescription,
AudioQueueOutput,
state,
CFRunLoopGetCurrent(),
kCFRunLoopDefaultMode,
0,
&state->audioQueue
);
if (result) {
Error("Failed to initialize audio queue");
goto error;
}
state->audioBufferSize = maximumPacketSize * PACKETS_PER_BUFFER;
AudioQueueBufferRef audioQueueBuffers[NUM_BUFFERS];
for (int i = 0; i < NUM_BUFFERS; ++i)
{
result = AudioQueueAllocateBufferWithPacketDescriptions(
state->audioQueue,
state->audioBufferSize,
PACKETS_PER_BUFFER,
&audioQueueBuffers[i]
);
if (result) {
Error("Failed to initialize audio queue buffer");
goto error;
}
}
result = AudioQueueAddPropertyListener(
state->audioQueue,
kAudioQueueProperty_IsRunning,
AudioQueuePropertyListener,
NULL
);
//
// prime and start the audio queue
//
AudioQueueOutput(
state,
state->audioQueue,
audioQueueBuffers[0]
);
result = AudioQueueStart(
state->audioQueue,
NULL
);
if (result) {
Error("Failed to start audio queue");
goto error;
}
//
// start the run loop that will dispatch audio queue callbacks
//
CFRunLoopRun();
StateDestroy(state);
return 0;
error:
if (state) {
StateDestroy(state);
}
return 1;
}
int main(int argc, const char *argv[])
{
MyPlayer player = {0};
CFURLRef myFileURL = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, kPlaybackFileLocation, kCFURLPOSIXPathStyle, false);
// open the audio file
// CheckError(AudioFileOpenURL(myFileURL, fsRdPerm, 0, &player.playbackFile), "AudioFileOpenURL failed");
CheckError(AudioFileOpenURL(myFileURL, kAudioFileReadPermission, 0, &player.playbackFile), "AudioFileOpenURL failed");
CFRelease(myFileURL);
// get the audio data format from the file
AudioStreamBasicDescription dataFormat;
UInt32 propSize = sizeof(dataFormat);
CheckError(AudioFileGetProperty(player.playbackFile, kAudioFilePropertyDataFormat,
&propSize, &dataFormat), "couldn't get file's data format");
// create a output (playback) queue
AudioQueueRef queue;
CheckError(AudioQueueNewOutput(&dataFormat, // ASBD
MyAQOutputCallback, // Callback
&player, // user data
NULL, // run loop
NULL, // run loop mode
0, // flags (always 0)
&queue), // output: reference to AudioQueue object
"AudioQueueNewOutput failed");
// adjust buffer size to represent about a half second (0.5) of audio based on this format
UInt32 bufferByteSize;
CalculateBytesForTime(player.playbackFile, dataFormat, 0.5, &bufferByteSize, &player.numPacketsToRead);
// check if we are dealing with a VBR file. ASBDs for VBR files always have
// mBytesPerPacket and mFramesPerPacket as 0 since they can fluctuate at any time.
// If we are dealing with a VBR file, we allocate memory to hold the packet descriptions
bool isFormatVBR = (dataFormat.mBytesPerPacket == 0 || dataFormat.mFramesPerPacket == 0);
if (isFormatVBR)
player.packetDescs = (AudioStreamPacketDescription*)malloc(sizeof(AudioStreamPacketDescription) * player.numPacketsToRead);
else
player.packetDescs = NULL; // we don't provide packet descriptions for constant bit rate formats (like linear PCM)
// get magic cookie from file and set on queue
MyCopyEncoderCookieToQueue(player.playbackFile, queue);
// allocate the buffers and prime the queue with some data before starting
AudioQueueBufferRef buffers[kNumberPlaybackBuffers];
player.isDone = false;
player.packetPosition = 0;
int i;
for (i = 0; i < kNumberPlaybackBuffers; ++i)
{
CheckError(AudioQueueAllocateBuffer(queue, bufferByteSize, &buffers[i]), "AudioQueueAllocateBuffer failed");
// manually invoke callback to fill buffers with data
MyAQOutputCallback(&player, queue, buffers[i]);
// EOF (the entire file's contents fit in the buffers)
if (player.isDone)
break;
}
//CheckError(AudioQueueAddPropertyListener(aqp.queue, kAudioQueueProperty_IsRunning, MyAQPropertyListenerCallback, &aqp), "AudioQueueAddPropertyListener(kAudioQueueProperty_IsRunning) failed");
// start the queue. this function returns immedatly and begins
// invoking the callback, as needed, asynchronously.
CheckError(AudioQueueStart(queue, NULL), "AudioQueueStart failed");
// and wait
printf("Playing...\n");
do
{
CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.25, false);
} while (!player.isDone /*|| gIsRunning*/);
// isDone represents the state of the Audio File enqueuing. This does not mean the
// Audio Queue is actually done playing yet. Since we have 3 half-second buffers in-flight
// run for continue to run for a short additional time so they can be processed
CFRunLoopRunInMode(kCFRunLoopDefaultMode, 2, false);
// end playback
player.isDone = true;
CheckError(AudioQueueStop(queue, TRUE), "AudioQueueStop failed");
cleanup:
AudioQueueDispose(queue, TRUE);
AudioFileClose(player.playbackFile);
return 0;
}
