bool audio::orchestra::api::Core::open(uint32_t _device,
audio::orchestra::mode _mode,
uint32_t _channels,
uint32_t _firstChannel,
uint32_t _sampleRate,
audio::format _format,
uint32_t *_bufferSize,
const audio::orchestra::StreamOptions& _options) {
// Get device ID
uint32_t nDevices = getDeviceCount();
if (nDevices == 0) {
// This should not happen because a check is made before this function is called.
ATA_ERROR("no devices found!");
return false;
}
if (_device >= nDevices) {
// This should not happen because a check is made before this function is called.
ATA_ERROR("device ID is invalid!");
return false;
}
AudioDeviceID deviceList[ nDevices/2 ];
uint32_t dataSize = sizeof(AudioDeviceID) * nDevices/2;
AudioObjectPropertyAddress property = {
kAudioHardwarePropertyDevices,
kAudioObjectPropertyScopeGlobal,
kAudioObjectPropertyElementMaster
};
OSStatus result = AudioObjectGetPropertyData(kAudioObjectSystemObject,
&property,
0,
nullptr,
&dataSize,
(void *) &deviceList);
if (result != noErr) {
ATA_ERROR("OS-X system error getting device IDs.");
return false;
}
AudioDeviceID id = deviceList[ _device/2 ];
// Setup for stream mode.
bool isInput = false;
if (_mode == audio::orchestra::mode_input) {
isInput = true;
property.mScope = kAudioDevicePropertyScopeInput;
} else {
property.mScope = kAudioDevicePropertyScopeOutput;
}
// Get the stream "configuration".
AudioBufferList *bufferList = nil;
dataSize = 0;
property.mSelector = kAudioDevicePropertyStreamConfiguration;
result = AudioObjectGetPropertyDataSize(id, &property, 0, nullptr, &dataSize);
if ( result != noErr
|| dataSize == 0) {
ATA_ERROR("system error (" << getErrorCode(result) << ") getting stream configuration info for device (" << _device << ").");
return false;
}
// Allocate the AudioBufferList.
bufferList = (AudioBufferList *) malloc(dataSize);
if (bufferList == nullptr) {
ATA_ERROR("memory error allocating AudioBufferList.");
return false;
}
result = AudioObjectGetPropertyData(id, &property, 0, nullptr, &dataSize, bufferList);
if ( result != noErr
|| dataSize == 0) {
ATA_ERROR("system error (" << getErrorCode(result) << ") getting stream configuration for device (" << _device << ").");
return false;
}
// Search for one or more streams that contain the desired number of
// channels. CoreAudio devices can have an arbitrary number of
// streams and each stream can have an arbitrary number of channels.
// For each stream, a single buffer of interleaved samples is
// provided. orchestra prefers the use of one stream of interleaved
// data or multiple consecutive single-channel streams. However, we
// now support multiple consecutive multi-channel streams of
// interleaved data as well.
uint32_t iStream, offsetCounter = _firstChannel;
uint32_t nStreams = bufferList->mNumberBuffers;
bool monoMode = false;
bool foundStream = false;
// First check that the device supports the requested number of
// channels.
uint32_t deviceChannels = 0;
for (iStream=0; iStream<nStreams; iStream++) {
deviceChannels += bufferList->mBuffers[iStream].mNumberChannels;
}
if (deviceChannels < (_channels + _firstChannel)) {
free(bufferList);
ATA_ERROR("the device (" << _device << ") does not support the requested channel count.");
return false;
}
// Look for a single stream meeting our needs.
uint32_t firstStream, streamCount = 1, streamChannels = 0, channelOffset = 0;
for (iStream=0; iStream<nStreams; iStream++) {
streamChannels = bufferList->mBuffers[iStream].mNumberChannels;
if (streamChannels >= _channels + offsetCounter) {
firstStream = iStream;
channelOffset = offsetCounter;
foundStream = true;
break;
}
if (streamChannels > offsetCounter) {
break;
}
offsetCounter -= streamChannels;
}
// If we didn't find a single stream above, then we should be able
// to meet the channel specification with multiple streams.
if (foundStream == false) {
monoMode = true;
offsetCounter = _firstChannel;
for (iStream=0; iStream<nStreams; iStream++) {
streamChannels = bufferList->mBuffers[iStream].mNumberChannels;
if (streamChannels > offsetCounter) {
break;
}
offsetCounter -= streamChannels;
}
firstStream = iStream;
channelOffset = offsetCounter;
int32_t channelCounter = _channels + offsetCounter - streamChannels;
if (streamChannels > 1) {
monoMode = false;
}
while (channelCounter > 0) {
streamChannels = bufferList->mBuffers[++iStream].mNumberChannels;
if (streamChannels > 1) {
monoMode = false;
}
channelCounter -= streamChannels;
streamCount++;
}
}
free(bufferList);
// Determine the buffer size.
AudioValueRange bufferRange;
dataSize = sizeof(AudioValueRange);
property.mSelector = kAudioDevicePropertyBufferFrameSizeRange;
result = AudioObjectGetPropertyData(id, &property, 0, nullptr, &dataSize, &bufferRange);
if (result != noErr) {
ATA_ERROR("system error (" << getErrorCode(result) << ") getting buffer size range for device (" << _device << ").");
return false;
}
if (bufferRange.mMinimum > *_bufferSize) {
*_bufferSize = (uint64_t) bufferRange.mMinimum;
} else if (bufferRange.mMaximum < *_bufferSize) {
*_bufferSize = (uint64_t) bufferRange.mMaximum;
}
if (_options.flags.m_minimizeLatency == true) {
*_bufferSize = (uint64_t) bufferRange.mMinimum;
}
// Set the buffer size. For multiple streams, I'm assuming we only
// need to make this setting for the master channel.
uint32_t theSize = (uint32_t) *_bufferSize;
dataSize = sizeof(uint32_t);
property.mSelector = kAudioDevicePropertyBufferFrameSize;
result = AudioObjectSetPropertyData(id, &property, 0, nullptr, dataSize, &theSize);
if (result != noErr) {
ATA_ERROR("system error (" << getErrorCode(result) << ") setting the buffer size for device (" << _device << ").");
return false;
}
// If attempting to setup a duplex stream, the bufferSize parameter
// MUST be the same in both directions!
*_bufferSize = theSize;
if ( m_mode == audio::orchestra::mode_output
&& _mode == audio::orchestra::mode_input
&& *_bufferSize != m_bufferSize) {
ATA_ERROR("system error setting buffer size for duplex stream on device (" << _device << ").");
return false;
}
m_bufferSize = *_bufferSize;
m_nBuffers = 1;
// Check and if necessary, change the sample rate for the device.
double nominalRate;
dataSize = sizeof(double);
property.mSelector = kAudioDevicePropertyNominalSampleRate;
result = AudioObjectGetPropertyData(id, &property, 0, nullptr, &dataSize, &nominalRate);
if (result != noErr) {
ATA_ERROR("system error (" << getErrorCode(result) << ") getting current sample rate.");
return false;
}
// Only change the sample rate if off by more than 1 Hz.
if (fabs(nominalRate - (double)_sampleRate) > 1.0) {
// Set a property listener for the sample rate change
double reportedRate = 0.0;
AudioObjectPropertyAddress tmp = { kAudioDevicePropertyNominalSampleRate, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
result = AudioObjectAddPropertyListener(id, &tmp, &rateListener, (void *) &reportedRate);
if (result != noErr) {
ATA_ERROR("system error (" << getErrorCode(result) << ") setting sample rate property listener for device (" << _device << ").");
return false;
}
nominalRate = (double) _sampleRate;
result = AudioObjectSetPropertyData(id, &property, 0, nullptr, dataSize, &nominalRate);
if (result != noErr) {
ATA_ERROR("system error (" << getErrorCode(result) << ") setting sample rate for device (" << _device << ").");
return false;
}
// Now wait until the reported nominal rate is what we just set.
uint32_t microCounter = 0;
while (reportedRate != nominalRate) {
microCounter += 5000;
if (microCounter > 5000000) {
break;
}
std::this_thread::sleep_for(std::chrono::milliseconds(5));
}
// Remove the property listener.
AudioObjectRemovePropertyListener(id, &tmp, &rateListener, (void *) &reportedRate);
if (microCounter > 5000000) {
ATA_ERROR("timeout waiting for sample rate update for device (" << _device << ").");
return false;
}
}
// Now set the stream format for all streams. Also, check the
// physical format of the device and change that if necessary.
AudioStreamBasicDescription description;
dataSize = sizeof(AudioStreamBasicDescription);
property.mSelector = kAudioStreamPropertyVirtualFormat;
result = AudioObjectGetPropertyData(id, &property, 0, nullptr, &dataSize, &description);
if (result != noErr) {
ATA_ERROR("system error (" << getErrorCode(result) << ") getting stream format for device (" << _device << ").");
return false;
}
// Set the sample rate and data format id. However, only make the
// change if the sample rate is not within 1.0 of the desired
// rate and the format is not linear pcm.
bool updateFormat = false;
if (fabs(description.mSampleRate - (double)_sampleRate) > 1.0) {
description.mSampleRate = (double) _sampleRate;
updateFormat = true;
}
if (description.mFormatID != kAudioFormatLinearPCM) {
description.mFormatID = kAudioFormatLinearPCM;
updateFormat = true;
}
if (updateFormat) {
result = AudioObjectSetPropertyData(id, &property, 0, nullptr, dataSize, &description);
if (result != noErr) {
ATA_ERROR("system error (" << getErrorCode(result) << ") setting sample rate or data format for device (" << _device << ").");
return false;
}
}
// Now check the physical format.
property.mSelector = kAudioStreamPropertyPhysicalFormat;
result = AudioObjectGetPropertyData(id, &property, 0, nullptr, &dataSize, &description);
if (result != noErr) {
ATA_ERROR("system error (" << getErrorCode(result) << ") getting stream physical format for device (" << _device << ").");
return false;
}
//std::cout << "Current physical stream format:" << std::endl;
//std::cout << " mBitsPerChan = " << description.mBitsPerChannel << std::endl;
//std::cout << " aligned high = " << (description.mFormatFlags & kAudioFormatFlagIsAlignedHigh) << ", isPacked = " << (description.mFormatFlags & kAudioFormatFlagIsPacked) << std::endl;
//std::cout << " bytesPerFrame = " << description.mBytesPerFrame << std::endl;
//std::cout << " sample rate = " << description.mSampleRate << std::endl;
if ( description.mFormatID != kAudioFormatLinearPCM
|| description.mBitsPerChannel < 16) {
description.mFormatID = kAudioFormatLinearPCM;
//description.mSampleRate = (double) sampleRate;
AudioStreamBasicDescription testDescription = description;
uint32_t formatFlags;
// We'll try higher bit rates first and then work our way down.
std::vector< std::pair<uint32_t, uint32_t> > physicalFormats;
formatFlags = (description.mFormatFlags | kLinearPCMFormatFlagIsFloat) & ~kLinearPCMFormatFlagIsSignedInteger;
physicalFormats.push_back(std::pair<float, uint32_t>(32, formatFlags));
formatFlags = (description.mFormatFlags | kLinearPCMFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked) & ~kLinearPCMFormatFlagIsFloat;
physicalFormats.push_back(std::pair<float, uint32_t>(32, formatFlags));
physicalFormats.push_back(std::pair<float, uint32_t>(24, formatFlags)); // 24-bit packed
formatFlags &= ~(kAudioFormatFlagIsPacked | kAudioFormatFlagIsAlignedHigh);
physicalFormats.push_back(std::pair<float, uint32_t>(24.2, formatFlags)); // 24-bit in 4 bytes, aligned low
formatFlags |= kAudioFormatFlagIsAlignedHigh;
physicalFormats.push_back(std::pair<float, uint32_t>(24.4, formatFlags)); // 24-bit in 4 bytes, aligned high
formatFlags = (description.mFormatFlags | kLinearPCMFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked) & ~kLinearPCMFormatFlagIsFloat;
physicalFormats.push_back(std::pair<float, uint32_t>(16, formatFlags));
physicalFormats.push_back(std::pair<float, uint32_t>(8, formatFlags));
bool setPhysicalFormat = false;
for(uint32_t i=0; i<physicalFormats.size(); i++) {
testDescription = description;
testDescription.mBitsPerChannel = (uint32_t) physicalFormats[i].first;
testDescription.mFormatFlags = physicalFormats[i].second;
if ( (24 == (uint32_t)physicalFormats[i].first)
&& ~(physicalFormats[i].second & kAudioFormatFlagIsPacked)) {
testDescription.mBytesPerFrame = 4 * testDescription.mChannelsPerFrame;
} else {
testDescription.mBytesPerFrame = testDescription.mBitsPerChannel/8 * testDescription.mChannelsPerFrame;
}
testDescription.mBytesPerPacket = testDescription.mBytesPerFrame * testDescription.mFramesPerPacket;
result = AudioObjectSetPropertyData(id, &property, 0, nullptr, dataSize, &testDescription);
if (result == noErr) {
setPhysicalFormat = true;
//std::cout << "Updated physical stream format:" << std::endl;
//std::cout << " mBitsPerChan = " << testDescription.mBitsPerChannel << std::endl;
//std::cout << " aligned high = " << (testDescription.mFormatFlags & kAudioFormatFlagIsAlignedHigh) << ", isPacked = " << (testDescription.mFormatFlags & kAudioFormatFlagIsPacked) << std::endl;
//std::cout << " bytesPerFrame = " << testDescription.mBytesPerFrame << std::endl;
//std::cout << " sample rate = " << testDescription.mSampleRate << std::endl;
break;
}
}
if (!setPhysicalFormat) {
ATA_ERROR("system error (" << getErrorCode(result) << ") setting physical data format for device (" << _device << ").");
return false;
}
} // done setting virtual/physical formats.
// Get the stream / device latency.
uint32_t latency;
dataSize = sizeof(uint32_t);
property.mSelector = kAudioDevicePropertyLatency;
if (AudioObjectHasProperty(id, &property) == true) {
result = AudioObjectGetPropertyData(id, &property, 0, nullptr, &dataSize, &latency);
if (result == kAudioHardwareNoError) {
m_latency[ _mode ] = latency;
} else {
ATA_ERROR("system error (" << getErrorCode(result) << ") getting device latency for device (" << _device << ").");
return false;
}
}
// Byte-swapping: According to AudioHardware.h, the stream data will
// always be presented in native-endian format, so we should never
// need to byte swap.
m_doByteSwap[modeToIdTable(_mode)] = false;
// From the CoreAudio documentation, PCM data must be supplied as
// 32-bit floats.
m_userFormat = _format;
m_deviceFormat[modeToIdTable(_mode)] = audio::format_float;
if (streamCount == 1) {
m_nDeviceChannels[modeToIdTable(_mode)] = description.mChannelsPerFrame;
} else {
// multiple streams
m_nDeviceChannels[modeToIdTable(_mode)] = _channels;
}
m_nUserChannels[modeToIdTable(_mode)] = _channels;
m_channelOffset[modeToIdTable(_mode)] = channelOffset; // offset within a CoreAudio stream
m_deviceInterleaved[modeToIdTable(_mode)] = true;
if (monoMode == true) {
m_deviceInterleaved[modeToIdTable(_mode)] = false;
}
// Set flags for buffer conversion.
m_doConvertBuffer[modeToIdTable(_mode)] = false;
if (m_userFormat != m_deviceFormat[modeToIdTable(_mode)]) {
m_doConvertBuffer[modeToIdTable(_mode)] = true;
}
if (m_nUserChannels[modeToIdTable(_mode)] < m_nDeviceChannels[modeToIdTable(_mode)]) {
m_doConvertBuffer[modeToIdTable(_mode)] = true;
}
if (streamCount == 1) {
if ( m_nUserChannels[modeToIdTable(_mode)] > 1
&& m_deviceInterleaved[modeToIdTable(_mode)] == false) {
m_doConvertBuffer[modeToIdTable(_mode)] = true;
}
} else if (monoMode) {
m_doConvertBuffer[modeToIdTable(_mode)] = true;
}
m_private->iStream[modeToIdTable(_mode)] = firstStream;
m_private->nStreams[modeToIdTable(_mode)] = streamCount;
m_private->id[modeToIdTable(_mode)] = id;
// Allocate necessary internal buffers.
uint64_t bufferBytes;
bufferBytes = m_nUserChannels[modeToIdTable(_mode)] * *_bufferSize * audio::getFormatBytes(m_userFormat);
// m_userBuffer[modeToIdTable(_mode)] = (char *) calloc(bufferBytes, 1);
m_userBuffer[modeToIdTable(_mode)].resize(bufferBytes, 0);
if (m_userBuffer[modeToIdTable(_mode)].size() == 0) {
ATA_ERROR("error allocating user buffer memory.");
goto error;
}
// If possible, we will make use of the CoreAudio stream buffers as
// "device buffers". However, we can't do this if using multiple
// streams.
if ( m_doConvertBuffer[modeToIdTable(_mode)]
&& m_private->nStreams[modeToIdTable(_mode)] > 1) {
bool makeBuffer = true;
bufferBytes = m_nDeviceChannels[modeToIdTable(_mode)] * audio::getFormatBytes(m_deviceFormat[modeToIdTable(_mode)]);
if (_mode == audio::orchestra::mode_input) {
if ( m_mode == audio::orchestra::mode_output
&& m_deviceBuffer) {
uint64_t bytesOut = m_nDeviceChannels[0] * audio::getFormatBytes(m_deviceFormat[0]);
if (bufferBytes <= bytesOut) {
makeBuffer = false;
}
}
}
if (makeBuffer) {
bufferBytes *= *_bufferSize;
if (m_deviceBuffer) {
free(m_deviceBuffer);
m_deviceBuffer = nullptr;
}
m_deviceBuffer = (char *) calloc(bufferBytes, 1);
if (m_deviceBuffer == nullptr) {
ATA_ERROR("error allocating device buffer memory.");
goto error;
}
}
}
m_sampleRate = _sampleRate;
m_device[modeToIdTable(_mode)] = _device;
m_state = audio::orchestra::state::stopped;
ATA_VERBOSE("Set state as stopped");
// Setup the buffer conversion information structure.
if (m_doConvertBuffer[modeToIdTable(_mode)]) {
if (streamCount > 1) {
setConvertInfo(_mode, 0);
} else {
setConvertInfo(_mode, channelOffset);
}
}
if ( _mode == audio::orchestra::mode_input
&& m_mode == audio::orchestra::mode_output
&& m_device[0] == _device) {
// Only one callback procedure per device.
m_mode = audio::orchestra::mode_duplex;
} else {
#if defined(MAC_OS_X_VERSION_10_5) && (MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5)
result = AudioDeviceCreateIOProcID(id, &audio::orchestra::api::Core::callbackEvent, this, &m_private->procId[modeToIdTable(_mode)]);
#else
// deprecated in favor of AudioDeviceCreateIOProcID()
result = AudioDeviceAddIOProc(id, &audio::orchestra::api::Core::callbackEvent, this);
#endif
if (result != noErr) {
ATA_ERROR("system error setting callback for device (" << _device << ").");
goto error;
}
if ( m_mode == audio::orchestra::mode_output
&& _mode == audio::orchestra::mode_input) {
m_mode = audio::orchestra::mode_duplex;
} else {
m_mode = _mode;
}
}
// Setup the device property listener for over/underload.
property.mSelector = kAudioDeviceProcessorOverload;
result = AudioObjectAddPropertyListener(id, &property, &audio::orchestra::api::Core::xrunListener, this);
return true;
error:
m_userBuffer[0].clear();
m_userBuffer[1].clear();
if (m_deviceBuffer) {
free(m_deviceBuffer);
m_deviceBuffer = 0;
}
m_state = audio::orchestra::state::closed;
ATA_VERBOSE("Set state as closed");
return false;
}
// ----------------------------------------------------------------------------
void AudioCoreDriver::deinitialize()
// ----------------------------------------------------------------------------
{
if (!mIsInitialized)
return;
stopPlayback();
AudioDeviceDestroyIOProcID(mDeviceID, mEmulationPlaybackProcID);
AudioDeviceDestroyIOProcID(mDeviceID, mPreRenderedBufferPlaybackProcID);
#if USE_NEW_API
OSStatus err;
AudioObjectPropertyAddress prop5 = {
kAudioDevicePropertyStreamFormat,
kAudioDevicePropertyScopeOutput,
kAudioObjectPropertyElementMaster
};
err = AudioObjectRemovePropertyListener(mDeviceID, &prop5, streamFormatChanged, (void*)this);
if (err != kAudioHardwareNoError)
printf("AudioObjectRemovePropertyListener(streamFormatChanged) failed\n");
AudioObjectPropertyAddress prop6 = {
kAudioDeviceProcessorOverload,
kAudioDevicePropertyScopeOutput,
kAudioObjectPropertyElementMaster
};
err = AudioObjectRemovePropertyListener(mDeviceID, &prop6, overloadDetected, (void*)this);
if (err != kAudioHardwareNoError)
printf("AudioObjectRemovePropertyListener(overloadDetected) failed\n");
AudioObjectPropertyAddress prop7 = {
kAudioHardwarePropertyDefaultOutputDevice,
kAudioDevicePropertyScopeOutput,
kAudioObjectPropertyElementMaster
};
err = AudioObjectRemovePropertyListener(mDeviceID, &prop7, deviceChanged, (void*)this);
if (err != kAudioHardwareNoError)
printf("AudioObjectRemovePropertyListener(deviceChanged) failed\n");
#else
AudioDeviceRemovePropertyListener(mDeviceID, 0, false, kAudioDevicePropertyStreamFormat, streamFormatChanged);
AudioDeviceRemovePropertyListener(mDeviceID, 0, false, kAudioDeviceProcessorOverload, overloadDetected);
AudioHardwareRemovePropertyListener(kAudioHardwarePropertyDefaultOutputDevice, deviceChanged);
#endif
delete[] mSampleBuffer1;
mSampleBuffer1 = NULL;
delete[] mSampleBuffer2;
mSampleBuffer2 = NULL;
mSampleBuffer = NULL;
mRetSampleBuffer = NULL;
delete[] mSpectrumBuffer;
mSpectrumBuffer = NULL;
mIsInitialized = false;
}
void HP_SystemInfo::Teardown()
{
if(sIsInitialized)
{
CAPropertyAddress theAddress('user'); // kAudioHardwarePropertyUserSessionIsActiveOrHeadless
AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &theAddress, SystemListener, NULL);
theAddress.mSelector = 'pmut'; // kAudioHardwarePropertyProcessIsAudible
AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &theAddress, SystemListener, NULL);
sIsInitialized = false;
}
}
void CCoreAudioDevice::RegisterDefaultOutputDeviceChangedCB(bool bRegister, AudioObjectPropertyListenerProc callback, void *ref)
{
OSStatus ret = noErr;
static int registered = -1;
//only allow registration once
if (bRegister == (registered == 1))
return;
AudioObjectPropertyAddress inAdr =
{
kAudioHardwarePropertyDefaultOutputDevice,
kAudioObjectPropertyScopeGlobal,
kAudioObjectPropertyElementMaster
};
if (bRegister)
{
ret = AudioObjectAddPropertyListener(kAudioObjectSystemObject, &inAdr, defaultOutputDeviceChanged, ref);
m_defaultOutputDeviceChangedCB = callback;
}
else
{
ret = AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &inAdr, defaultOutputDeviceChanged, ref);
m_defaultOutputDeviceChangedCB = NULL;
}
if (ret != noErr)
CLog::Log(LOGERROR, "CCoreAudioAE::Deinitialize - error %s a listener callback for default output device changes!", bRegister?"attaching":"removing");
else
registered = bRegister ? 1 : 0;
}
void RemoveChangeListeners(PortMixer *mixer) {
if (mixer->listenersInstalled) {
for (size_t i=0; i<sizeof(changeListenersAddresses)/sizeof(changeListenersAddresses[0]); i++) {
AudioObjectRemovePropertyListener(mixer->deviceID, &changeListenersAddresses[i], ChangeListenerProc, mixer);
}
mixer->listenersInstalled = false;
}
}
// TODO: Should it even be possible to change both the
// physical and virtual formats, since the devices do it themselves?
void CCoreAudioStream::Close(bool restore)
{
if (!m_StreamId)
return;
std::string formatString;
// remove the physical/virtual property listeners before we make changes
// that will trigger callbacks that we do not care about.
AudioObjectPropertyAddress propertyAOPA;
propertyAOPA.mScope = kAudioObjectPropertyScopeGlobal;
propertyAOPA.mElement = kAudioObjectPropertyElementMaster;
propertyAOPA.mSelector = kAudioStreamPropertyPhysicalFormat;
if (AudioObjectRemovePropertyListener(m_StreamId, &propertyAOPA, HardwareStreamListener, this) != noErr)
CLog::Log(LOGDEBUG, "CCoreAudioStream::Close: Couldn't remove property listener.");
propertyAOPA.mScope = kAudioObjectPropertyScopeGlobal;
propertyAOPA.mElement = kAudioObjectPropertyElementMaster;
propertyAOPA.mSelector = kAudioStreamPropertyVirtualFormat;
if (AudioObjectRemovePropertyListener(m_StreamId, &propertyAOPA, HardwareStreamListener, this) != noErr)
CLog::Log(LOGDEBUG, "CCoreAudioStream::Close: Couldn't remove property listener.");
// Revert any format changes we made
if (restore && m_OriginalVirtualFormat.mFormatID && m_StreamId)
{
CLog::Log(LOGDEBUG, "CCoreAudioStream::Close: "
"Restoring original virtual format for stream 0x%04x. (%s)",
(uint)m_StreamId, StreamDescriptionToString(m_OriginalVirtualFormat, formatString));
AudioStreamBasicDescription setFormat = m_OriginalVirtualFormat;
SetVirtualFormat(&setFormat);
}
if (restore && m_OriginalPhysicalFormat.mFormatID && m_StreamId)
{
CLog::Log(LOGDEBUG, "CCoreAudioStream::Close: "
"Restoring original physical format for stream 0x%04x. (%s)",
(uint)m_StreamId, StreamDescriptionToString(m_OriginalPhysicalFormat, formatString));
AudioStreamBasicDescription setFormat = m_OriginalPhysicalFormat;
SetPhysicalFormat(&setFormat);
}
m_OriginalVirtualFormat.mFormatID = 0;
m_OriginalPhysicalFormat.mFormatID = 0;
CLog::Log(LOGDEBUG, "CCoreAudioStream::Close: Closed stream 0x%04x.", (uint)m_StreamId);
m_StreamId = 0;
}
~CoreAudioIODeviceType()
{
AudioObjectPropertyAddress pa;
pa.mSelector = kAudioHardwarePropertyDevices;
pa.mScope = kAudioObjectPropertyScopeWildcard;
pa.mElement = kAudioObjectPropertyElementWildcard;
AudioObjectRemovePropertyListener (kAudioObjectSystemObject, &pa, hardwareListenerProc, this);
}
static void
COREAUDIO_Deinitialize(void)
{
#if MACOSX_COREAUDIO
AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &devlist_address, device_list_changed, NULL);
free_audio_device_list(&capture_devs);
free_audio_device_list(&output_devs);
#endif
}
void AudioDriverCoreAudio::finish() {
capture_finish();
if (audio_unit) {
OSStatus result;
lock();
AURenderCallbackStruct callback;
zeromem(&callback, sizeof(AURenderCallbackStruct));
result = AudioUnitSetProperty(audio_unit, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, kOutputBus, &callback, sizeof(callback));
if (result != noErr) {
ERR_PRINT("AudioUnitSetProperty failed");
}
if (active) {
result = AudioOutputUnitStop(audio_unit);
if (result != noErr) {
ERR_PRINT("AudioOutputUnitStop failed");
}
active = false;
}
result = AudioUnitUninitialize(audio_unit);
if (result != noErr) {
ERR_PRINT("AudioUnitUninitialize failed");
}
#ifdef OSX_ENABLED
AudioObjectPropertyAddress prop;
prop.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
prop.mScope = kAudioObjectPropertyScopeGlobal;
prop.mElement = kAudioObjectPropertyElementMaster;
result = AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &prop, &output_device_address_cb, this);
if (result != noErr) {
ERR_PRINT("AudioObjectRemovePropertyListener failed");
}
#endif
result = AudioComponentInstanceDispose(audio_unit);
if (result != noErr) {
ERR_PRINT("AudioComponentInstanceDispose failed");
}
audio_unit = NULL;
unlock();
}
if (mutex) {
memdelete(mutex);
mutex = NULL;
}
}
~CoreAudioInternal()
{
AudioObjectPropertyAddress pa;
pa.mSelector = kAudioObjectPropertySelectorWildcard;
pa.mScope = kAudioObjectPropertyScopeWildcard;
pa.mElement = kAudioObjectPropertyElementWildcard;
AudioObjectRemovePropertyListener (deviceID, &pa, deviceListenerProc, this);
stop (false);
}
~CoreAudioIODevice()
{
close();
AudioObjectPropertyAddress pa;
pa.mSelector = kAudioObjectPropertySelectorWildcard;
pa.mScope = kAudioObjectPropertyScopeWildcard;
pa.mElement = kAudioObjectPropertyElementWildcard;
AudioObjectRemovePropertyListener (kAudioObjectSystemObject, &pa, hardwareListenerProc, internal);
}
virtual ~DeviceChangeListener()
{
if (mListening)
{
AudioObjectPropertyAddress property_address;
property_address.mSelector = kAudioHardwarePropertyDevices;
property_address.mScope = kAudioObjectPropertyScopeGlobal;
property_address.mElement = kAudioObjectPropertyElementMaster;
AudioObjectRemovePropertyListener(kAudioObjectSystemObject,
&property_address,
DeviceChangeListener::Listener,
this);
mListening = false;
}
}
void CCoreAudioDevice::RegisterDeviceChangedCB(bool bRegister, AudioObjectPropertyListenerProc callback, void *ref)
{
OSStatus ret = noErr;
AudioObjectPropertyAddress inAdr =
{
kAudioHardwarePropertyDevices,
kAudioObjectPropertyScopeGlobal,
kAudioObjectPropertyElementMaster
};
if (bRegister)
ret = AudioObjectAddPropertyListener(kAudioObjectSystemObject, &inAdr, callback, ref);
else
ret = AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &inAdr, callback, ref);
if (ret != noErr)
CLog::Log(LOGERROR, "CCoreAudioAE::Deinitialize - error %s a listener callback for device changes!", bRegister?"attaching":"removing");
}
void CCoreAudioDevice::RemoveObjectListenerProc(AudioObjectPropertyListenerProc callback, void* pClientData)
{
if (!m_DeviceId)
return;
AudioObjectPropertyAddress audioProperty;
audioProperty.mSelector = kAudioObjectPropertySelectorWildcard;
audioProperty.mScope = kAudioObjectPropertyScopeWildcard;
audioProperty.mElement = kAudioObjectPropertyElementWildcard;
OSStatus ret = AudioObjectRemovePropertyListener(m_DeviceId, &audioProperty, callback, pClientData);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioDevice::RemoveObjectListenerProc: "
"Unable to set ObjectListener callback. Error = %s", GetError(ret).c_str());
}
m_ObjectListenerProc = NULL;
}
static void hotplug_uninit(struct ao *ao)
{
OSStatus err = noErr;
for (int i = 0; i < MP_ARRAY_SIZE(hotplug_properties); i++) {
AudioObjectPropertyAddress addr = {
hotplug_properties[i],
kAudioObjectPropertyScopeGlobal,
kAudioObjectPropertyElementMaster
};
err = AudioObjectRemovePropertyListener(
kAudioObjectSystemObject, &addr, hotplug_cb, (void *)ao);
if (err != noErr) {
char *c1 = fourcc_repr(hotplug_properties[i]);
char *c2 = fourcc_repr(err);
MP_ERR(ao, "failed to set device listener %s (%s)", c1, c2);
}
}
}
void AudioDriverCoreAudio::capture_finish() {
if (input_unit) {
lock();
AURenderCallbackStruct callback;
zeromem(&callback, sizeof(AURenderCallbackStruct));
OSStatus result = AudioUnitSetProperty(input_unit, kAudioOutputUnitProperty_SetInputCallback, kAudioUnitScope_Global, 0, &callback, sizeof(callback));
if (result != noErr) {
ERR_PRINT("AudioUnitSetProperty failed");
}
result = AudioUnitUninitialize(input_unit);
if (result != noErr) {
ERR_PRINT("AudioUnitUninitialize failed");
}
#ifdef OSX_ENABLED
AudioObjectPropertyAddress prop;
prop.mSelector = kAudioHardwarePropertyDefaultInputDevice;
prop.mScope = kAudioObjectPropertyScopeGlobal;
prop.mElement = kAudioObjectPropertyElementMaster;
result = AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &prop, &input_device_address_cb, this);
if (result != noErr) {
ERR_PRINT("AudioObjectRemovePropertyListener failed");
}
#endif
result = AudioComponentInstanceDispose(input_unit);
if (result != noErr) {
ERR_PRINT("AudioComponentInstanceDispose failed");
}
input_unit = NULL;
unlock();
}
}
static inline gboolean
_unmonitorize_spdif (GstCoreAudio * core_audio)
{
OSStatus status = noErr;
gboolean ret = TRUE;
AudioObjectPropertyAddress propAddress = {
kAudioDevicePropertyDeviceHasChanged,
kAudioObjectPropertyScopeGlobal,
kAudioObjectPropertyElementMaster
};
/* Remove the property listener */
status = AudioObjectRemovePropertyListener (core_audio->device_id,
&propAddress, _audio_stream_hardware_changed_listener,
(void *) core_audio);
if (status != noErr) {
GST_ERROR_OBJECT (core_audio->osxbuf,
"AudioObjectRemovePropertyListener failed: %d", (int) status);
ret = FALSE;
}
return ret;
}
static void
COREAUDIO_CloseDevice(_THIS)
{
if (this->hidden != NULL) {
if (this->hidden->audioUnitOpened) {
#if MACOSX_COREAUDIO
/* Unregister our disconnect callback. */
AudioObjectRemovePropertyListener(this->hidden->deviceID, &alive_address, device_unplugged, this);
#endif
AURenderCallbackStruct callback;
const AudioUnitElement output_bus = 0;
const AudioUnitElement input_bus = 1;
const int iscapture = this->iscapture;
const AudioUnitElement bus =
((iscapture) ? input_bus : output_bus);
const AudioUnitScope scope =
((iscapture) ? kAudioUnitScope_Output :
kAudioUnitScope_Input);
/* stop processing the audio unit */
AudioOutputUnitStop(this->hidden->audioUnit);
/* Remove the input callback */
SDL_memset(&callback, 0, sizeof(AURenderCallbackStruct));
AudioUnitSetProperty(this->hidden->audioUnit,
kAudioUnitProperty_SetRenderCallback,
scope, bus, &callback, sizeof(callback));
AudioComponentInstanceDispose(this->hidden->audioUnit);
this->hidden->audioUnitOpened = 0;
}
SDL_free(this->hidden->buffer);
SDL_free(this->hidden);
this->hidden = NULL;
}
}
static gboolean
_audio_stream_change_format (AudioStreamID stream_id,
AudioStreamBasicDescription format)
{
OSStatus status = noErr;
gint i;
gboolean ret = FALSE;
AudioStreamBasicDescription cformat;
PropertyMutex prop_mutex;
AudioObjectPropertyAddress formatAddress = {
kAudioStreamPropertyPhysicalFormat,
kAudioObjectPropertyScopeGlobal,
kAudioObjectPropertyElementMaster
};
GST_DEBUG ("setting stream format: " CORE_AUDIO_FORMAT,
CORE_AUDIO_FORMAT_ARGS (format));
/* Condition because SetProperty is asynchronous */
g_mutex_init (&prop_mutex.lock);
g_cond_init (&prop_mutex.cond);
g_mutex_lock (&prop_mutex.lock);
/* Install the property listener to serialize the operations */
status = AudioObjectAddPropertyListener (stream_id, &formatAddress,
_audio_stream_format_listener, (void *) &prop_mutex);
if (status != noErr) {
GST_ERROR ("AudioObjectAddPropertyListener failed: %d", (int) status);
goto done;
}
/* Change the format */
if (!_audio_stream_set_current_format (stream_id, format)) {
goto done;
}
/* The AudioObjectSetProperty is not only asynchronous
* it is also not atomic in its behaviour.
* Therefore we check 4 times before we really give up. */
for (i = 0; i < 4; i++) {
GTimeVal timeout;
g_get_current_time (&timeout);
g_time_val_add (&timeout, 250000);
if (!g_cond_wait_until (&prop_mutex.cond, &prop_mutex.lock, timeout.tv_sec)) {
GST_LOG ("timeout...");
}
if (_audio_stream_get_current_format (stream_id, &cformat)) {
GST_DEBUG ("current stream format: " CORE_AUDIO_FORMAT,
CORE_AUDIO_FORMAT_ARGS (cformat));
if (cformat.mSampleRate == format.mSampleRate &&
cformat.mFormatID == format.mFormatID &&
cformat.mFramesPerPacket == format.mFramesPerPacket) {
/* The right format is now active */
break;
}
}
}
if (cformat.mSampleRate != format.mSampleRate ||
cformat.mFormatID != format.mFormatID ||
cformat.mFramesPerPacket != format.mFramesPerPacket) {
goto done;
}
ret = TRUE;
done:
/* Removing the property listener */
status = AudioObjectRemovePropertyListener (stream_id,
&formatAddress, _audio_stream_format_listener, (void *) &prop_mutex);
if (status != noErr) {
GST_ERROR ("AudioObjectRemovePropertyListener failed: %d", (int) status);
}
/* Destroy the lock and condition */
g_mutex_unlock (&prop_mutex.lock);
g_mutex_clear (&prop_mutex.lock);
g_cond_clear (&prop_mutex.cond);
return ret;
}
/*****************************************************************************
* AudioStreamChangeFormat: Change i_stream_id to change_format
*****************************************************************************/
static int AudioStreamChangeFormat( AudioStreamID i_stream_id, AudioStreamBasicDescription change_format )
{
OSStatus err = noErr;
int i;
AudioObjectPropertyAddress property_address;
static volatile int stream_format_changed;
stream_format_changed = 0;
print_format(MSGL_V, "setting stream format:", &change_format);
/* Install the callback. */
property_address.mSelector = kAudioStreamPropertyPhysicalFormat;
property_address.mScope = kAudioObjectPropertyScopeGlobal;
property_address.mElement = kAudioObjectPropertyElementMaster;
err = AudioObjectAddPropertyListener(i_stream_id,
&property_address,
StreamListener,
(void *)&stream_format_changed);
if (err != noErr)
{
ao_msg(MSGT_AO, MSGL_WARN, "AudioStreamAddPropertyListener failed: [%4.4s]\n", (char *)&err);
return CONTROL_FALSE;
}
/* Change the format. */
err = SetAudioProperty(i_stream_id,
kAudioStreamPropertyPhysicalFormat,
sizeof(AudioStreamBasicDescription), &change_format);
if (err != noErr)
{
ao_msg(MSGT_AO, MSGL_WARN, "could not set the stream format: [%4.4s]\n", (char *)&err);
return CONTROL_FALSE;
}
/* The AudioStreamSetProperty is not only asynchronious,
* it is also not Atomic, in its behaviour.
* Therefore we check 5 times before we really give up.
* FIXME: failing isn't actually implemented yet. */
for (i = 0; i < 5; ++i)
{
AudioStreamBasicDescription actual_format;
int j;
for (j = 0; !stream_format_changed && j < 50; ++j)
usec_sleep(10000);
if (stream_format_changed)
stream_format_changed = 0;
else
ao_msg(MSGT_AO, MSGL_V, "reached timeout\n" );
err = GetAudioProperty(i_stream_id,
kAudioStreamPropertyPhysicalFormat,
sizeof(AudioStreamBasicDescription), &actual_format);
print_format(MSGL_V, "actual format in use:", &actual_format);
if (actual_format.mSampleRate == change_format.mSampleRate &&
actual_format.mFormatID == change_format.mFormatID &&
actual_format.mFramesPerPacket == change_format.mFramesPerPacket)
{
/* The right format is now active. */
break;
}
/* We need to check again. */
}
/* Removing the property listener. */
err = AudioObjectRemovePropertyListener(i_stream_id,
&property_address,
StreamListener,
(void *)&stream_format_changed);
if (err != noErr)
{
ao_msg(MSGT_AO, MSGL_WARN, "AudioStreamRemovePropertyListener failed: [%4.4s]\n", (char *)&err);
return CONTROL_FALSE;
}
return CONTROL_TRUE;
}
void CAHALAudioObject::RemovePropertyListener(AudioObjectPropertyAddress& inAddress, AudioObjectPropertyListenerProc inListenerProc, void* inClientData)
{
OSStatus theError = AudioObjectRemovePropertyListener(mObjectID, &inAddress, inListenerProc, inClientData);
ThrowIfError(theError, CAException(theError), "CAHALAudioObject::RemovePropertyListener: got an error removing a property listener");
}