CAUOutputDevice *CCoreAudioGraph::CreateUnit(AEAudioFormat &format)
{
if (!m_audioUnit || !m_mixerUnit)
return NULL;
std::string formatString;
AudioStreamBasicDescription inputFormat;
AudioStreamBasicDescription outputFormat;
OSStatus ret;
int busNumber = GetFreeBus();
if (busNumber == INVALID_BUS)
return NULL;
// create output unit
CAUOutputDevice *outputUnit = new CAUOutputDevice();
if (!outputUnit->Open(m_audioGraph, kAudioUnitType_FormatConverter, kAudioUnitSubType_AUConverter, kAudioUnitManufacturer_Apple))
goto error;
m_audioUnit->GetFormatDesc(format, &inputFormat);
// get the format frm the mixer
if (!m_mixerUnit->GetFormat(&outputFormat, kAudioUnitScope_Input, kOutputBus))
goto error;
if (!outputUnit->SetFormat(&outputFormat, kAudioUnitScope_Output, kOutputBus))
goto error;
if (!outputUnit->SetFormat(&inputFormat, kAudioUnitScope_Input, kOutputBus))
goto error;
ret = AUGraphConnectNodeInput(m_audioGraph, outputUnit->GetNode(), 0, m_mixerUnit->GetNode(), busNumber);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::CreateUnit: Error connecting outputUnit. Error = %s", GetError(ret).c_str());
goto error;
}
// TODO: setup mixmap, get free bus number for connection
outputUnit->SetBus(busNumber);
AUGraphUpdate(m_audioGraph, NULL);
printf("Add unit\n\n");
ShowGraph();
printf("\n");
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Input Stream Format %s", StreamDescriptionToString(inputFormat, formatString));
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Output Stream Format %s", StreamDescriptionToString(outputFormat, formatString));
m_auUnitList.push_back(outputUnit);
return outputUnit;
error:
delete outputUnit;
return NULL;
}
// 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;
}
bool CCoreAudioStream::SetPhysicalFormat(AudioStreamBasicDescription* pDesc)
{
if (!pDesc || !m_StreamId)
return false;
std::string formatString;
if (!m_OriginalPhysicalFormat.mFormatID)
{
// Store the original format (as we found it) so that it can be restored later
if (!GetPhysicalFormat(&m_OriginalPhysicalFormat))
{
CLog::Log(LOGERROR, "CCoreAudioStream::SetPhysicalFormat: "
"Unable to retrieve current physical format for stream 0x%04x.", (uint)m_StreamId);
return false;
}
}
m_physical_format_event.Reset();
OSStatus ret = AudioStreamSetProperty(m_StreamId,
NULL, 0, kAudioStreamPropertyPhysicalFormat, sizeof(AudioStreamBasicDescription), pDesc);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioStream::SetPhysicalFormat: "
"Unable to set physical format for stream 0x%04x. Error = %s",
(uint)m_StreamId, GetError(ret).c_str());
return 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(int i = 0; i < 10; ++i)
{
AudioStreamBasicDescription checkPhysicalFormat;
if (!GetPhysicalFormat(&checkPhysicalFormat))
{
CLog::Log(LOGERROR, "CCoreAudioStream::SetPhysicalFormat: "
"Unable to retrieve current physical format for stream 0x%04x.", (uint)m_StreamId);
return false;
}
if (checkPhysicalFormat.mSampleRate == pDesc->mSampleRate &&
checkPhysicalFormat.mFormatID == pDesc->mFormatID &&
checkPhysicalFormat.mFramesPerPacket == pDesc->mFramesPerPacket)
{
// The right format is now active.
CLog::Log(LOGDEBUG, "CCoreAudioStream::SetPhysicalFormat: "
"Physical format for stream 0x%04x. now active (%s)",
(uint)m_StreamId, StreamDescriptionToString(checkPhysicalFormat, formatString));
break;
}
m_physical_format_event.WaitMSec(100);
}
return true;
}
OSStatus CCoreAudioStream::HardwareStreamListener(AudioObjectID inObjectID,
UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[], void *inClientData)
{
CCoreAudioStream *ca_stream = (CCoreAudioStream*)inClientData;
for (UInt32 i = 0; i < inNumberAddresses; i++)
{
if (inAddresses[i].mSelector == kAudioStreamPropertyPhysicalFormat)
{
AudioStreamBasicDescription actualFormat;
UInt32 propertySize = sizeof(AudioStreamBasicDescription);
// hardware physical format has changed.
if (AudioObjectGetPropertyData(ca_stream->m_StreamId, &inAddresses[i], 0, NULL, &propertySize, &actualFormat) == noErr)
{
std::string formatString;
CLog::Log(LOGINFO, "CCoreAudioStream::HardwareStreamListener: "
"Hardware physical format changed to %s", StreamDescriptionToString(actualFormat, formatString));
ca_stream->m_physical_format_event.Set();
}
}
else if (inAddresses[i].mSelector == kAudioStreamPropertyVirtualFormat)
{
// hardware virtual format has changed.
AudioStreamBasicDescription actualFormat;
UInt32 propertySize = sizeof(AudioStreamBasicDescription);
if (AudioObjectGetPropertyData(ca_stream->m_StreamId, &inAddresses[i], 0, NULL, &propertySize, &actualFormat) == noErr)
{
std::string formatString;
CLog::Log(LOGINFO, "CCoreAudioStream::HardwareStreamListener: "
"Hardware virtual format changed to %s", StreamDescriptionToString(actualFormat, formatString));
ca_stream->m_virtual_format_event.Set();
}
}
}
return noErr;
}
bool CCoreAudioStream::SetPhysicalFormat(AudioStreamBasicDescription* pDesc)
{
if (!pDesc || !m_StreamId)
return false;
std::string formatString;
// suppress callbacks for the default output device change
// for the next 2 seconds because setting format
// might trigger a change (when setting/unsetting an encoded
// passthrough format)
CCoreAudioDevice::SuppressDefaultOutputDeviceCB(2000);
if (!m_OriginalPhysicalFormat.mFormatID)
{
// Store the original format (as we found it) so that it can be restored later
if (!GetPhysicalFormat(&m_OriginalPhysicalFormat))
{
CLog::Log(LOGERROR, "CCoreAudioStream::SetPhysicalFormat: "
"Unable to retrieve current physical format for stream 0x%04x.", (uint)m_StreamId);
return false;
}
}
m_physical_format_event.Reset();
AudioObjectPropertyAddress propertyAddress;
propertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
propertyAddress.mElement = kAudioObjectPropertyElementMaster;
propertyAddress.mSelector = kAudioStreamPropertyPhysicalFormat;
UInt32 propertySize = sizeof(AudioStreamBasicDescription);
OSStatus ret = AudioObjectSetPropertyData(m_StreamId, &propertyAddress, 0, NULL, propertySize, pDesc);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioStream::SetPhysicalFormat: "
"Unable to set physical format for stream 0x%04x. Error = %s",
(uint)m_StreamId, GetError(ret).c_str());
return 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(int i = 0; i < 10; ++i)
{
AudioStreamBasicDescription checkPhysicalFormat;
if (!GetPhysicalFormat(&checkPhysicalFormat))
{
CLog::Log(LOGERROR, "CCoreAudioStream::SetPhysicalFormat: "
"Unable to retrieve current physical format for stream 0x%04x.", (uint)m_StreamId);
return false;
}
if (checkPhysicalFormat.mSampleRate == pDesc->mSampleRate &&
checkPhysicalFormat.mFormatID == pDesc->mFormatID &&
checkPhysicalFormat.mFramesPerPacket == pDesc->mFramesPerPacket &&
checkPhysicalFormat.mChannelsPerFrame == pDesc->mChannelsPerFrame)
{
// The right format is now active.
CLog::Log(LOGDEBUG, "CCoreAudioStream::SetPhysicalFormat: "
"Physical format for stream 0x%04x. now active (%s)",
(uint)m_StreamId, StreamDescriptionToString(checkPhysicalFormat, formatString));
break;
}
m_physical_format_event.WaitMSec(100);
}
return true;
}
bool CCoreAudioGraph::Open(ICoreAudioSource *pSource, AEAudioFormat &format, bool allowMixing)
{
OSStatus ret;
AudioStreamBasicDescription inputFormat;
AudioStreamBasicDescription outputFormat;
m_allowMixing = allowMixing;
ret = NewAUGraph(&m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error create audio grpah. Error = %s", GetError(ret).c_str());
return false;
}
ret = AUGraphOpen(m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error open audio grpah. Error = %s", GetError(ret).c_str());
return false;
}
// get output unit
if (m_audioUnit)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error audio unit already open. double call ?");
return false;
}
m_audioUnit = new CAUOutputDevice();
if (!m_audioUnit->Open(m_audioGraph, kAudioUnitType_Output, kAudioUnitSubType_RemoteIO, kAudioUnitManufacturer_Apple))
return false;
if (!m_audioUnit->EnableInputOuput())
return false;
m_audioUnit->GetFormatDesc(format, &inputFormat);
//if(!allowMixing)
//{
if (!m_audioUnit->SetFormat(&inputFormat, kAudioUnitScope_Input, kOutputBus))
return false;
if (!m_audioUnit->SetFormat(&inputFormat, kAudioUnitScope_Output, kInputBus))
return false;
//}
if (allowMixing)
{
// get mixer unit
if (m_mixerUnit)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error mixer unit already open. double call ?");
return false;
}
m_mixerUnit = new CAUMultiChannelMixer();
if (!m_mixerUnit->Open(m_audioGraph, kAudioUnitType_Mixer, kAudioUnitSubType_MultiChannelMixer, kAudioUnitManufacturer_Apple))
return false;
// set number of input buses
if (!m_mixerUnit->SetInputBusCount(MAX_CONNECTION_LIMIT))
return false;
//if(!m_mixerUnit->SetFormat(&fmt, kAudioUnitScope_Output, kOutputBus))
// return false;
m_mixerUnit->SetBus(0);
if (!m_audioUnit->GetFormat(&outputFormat, kAudioUnitScope_Input, kOutputBus))
return false;
/*
if(!m_mixerUnit->SetInputBusFormat(MAX_CONNECTION_LIMIT, &outputFormat))
return false;
*/
ret = AUGraphConnectNodeInput(m_audioGraph, m_mixerUnit->GetNode(), 0, m_audioUnit->GetNode(), 0);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error connecting m_m_mixerNode. Error = %s", GetError(ret).c_str());
return false;
}
// get output unit
if (m_inputUnit)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error mixer unit already open. double call ?");
return false;
}
m_inputUnit = new CAUOutputDevice();
if (!m_inputUnit->Open(m_audioGraph, kAudioUnitType_FormatConverter, kAudioUnitSubType_AUConverter, kAudioUnitManufacturer_Apple))
return false;
if (!m_inputUnit->SetFormat(&inputFormat, kAudioUnitScope_Input, kOutputBus))
return false;
/*
if(!m_inputUnit->SetFormat(&outputFormat, kAudioUnitScope_Output, kOutputBus))
return false;
*/
// configure output unit
int busNumber = GetFreeBus();
ret = AUGraphConnectNodeInput(m_audioGraph, m_inputUnit->GetNode(), 0, m_mixerUnit->GetNode(), busNumber);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error connecting m_converterNode. Error = %s", GetError(ret).c_str());
return false;
}
m_inputUnit->SetBus(busNumber);
ret = AUGraphUpdate(m_audioGraph, NULL);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error update graph. Error = %s", GetError(ret).c_str());
return false;
}
ret = AUGraphInitialize(m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error initialize graph. Error = %s", GetError(ret).c_str());
return false;
}
// Regenerate audio format and copy format for the Output AU
}
ret = AUGraphUpdate(m_audioGraph, NULL);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error update graph. Error = %s", GetError(ret).c_str());
return false;
}
std::string formatString;
AudioStreamBasicDescription inputDesc_end, outputDesc_end;
m_audioUnit->GetFormat(&inputDesc_end, kAudioUnitScope_Input, kOutputBus);
m_audioUnit->GetFormat(&outputDesc_end, kAudioUnitScope_Output, kInputBus);
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Input Stream Format %s", StreamDescriptionToString(inputDesc_end, formatString));
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Output Stream Format %s", StreamDescriptionToString(outputDesc_end, formatString));
if (m_mixerUnit)
{
m_mixerUnit->GetFormat(&inputDesc_end, kAudioUnitScope_Input, kOutputBus);
m_mixerUnit->GetFormat(&outputDesc_end, kAudioUnitScope_Output, kOutputBus);
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Input Stream Format %s", StreamDescriptionToString(inputDesc_end, formatString));
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Output Stream Format %s", StreamDescriptionToString(outputDesc_end, formatString));
}
if (m_inputUnit)
{
m_inputUnit->GetFormat(&inputDesc_end, kAudioUnitScope_Input, kOutputBus);
m_inputUnit->GetFormat(&outputDesc_end, kAudioUnitScope_Output, kOutputBus);
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Input Stream Format %s", StreamDescriptionToString(inputDesc_end, formatString));
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Output Stream Format %s", StreamDescriptionToString(outputDesc_end, formatString));
}
ret = AUGraphInitialize(m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error initialize graph. Error = %s", GetError(ret).c_str());
return false;
}
UInt32 bufferFrames = m_audioUnit->GetBufferFrameSize();
m_audioUnit->SetMaxFramesPerSlice(bufferFrames);
if (m_inputUnit)
m_inputUnit->SetMaxFramesPerSlice(bufferFrames);
SetInputSource(pSource);
ShowGraph();
return Start();
}
bool CCoreAudioAEHALOSX::InitializeEncoded(AudioDeviceID outputDevice, AEAudioFormat &format)
{
std::string formatString;
AudioStreamID outputStream = 0;
AudioStreamBasicDescription outputFormat = {0};
// Fetch a list of the streams defined by the output device
UInt32 streamIndex = 0;
AudioStreamIdList streams;
m_AudioDevice->GetStreams(&streams);
m_OutputBufferIndex = 0;
while (!streams.empty())
{
// Get the next stream
CCoreAudioStream stream;
stream.Open(streams.front());
streams.pop_front(); // We copied it, now we are done with it
// Probe physical formats
StreamFormatList physicalFormats;
stream.GetAvailablePhysicalFormats(&physicalFormats);
while (!physicalFormats.empty())
{
AudioStreamRangedDescription& desc = physicalFormats.front();
CLog::Log(LOGDEBUG, "CCoreAudioAEHALOSX::InitializeEncoded: "
"Considering Physical Format: %s", StreamDescriptionToString(desc.mFormat, formatString));
if (m_rawDataFormat == AE_FMT_LPCM || m_rawDataFormat == AE_FMT_DTSHD ||
m_rawDataFormat == AE_FMT_TRUEHD || m_rawDataFormat == AE_FMT_EAC3)
{
// check pcm output formats
unsigned int bps = CAEUtil::DataFormatToBits(AE_FMT_S16NE);
if (desc.mFormat.mChannelsPerFrame == m_initformat.m_channelLayout.Count() &&
desc.mFormat.mBitsPerChannel == bps &&
desc.mFormat.mSampleRate == m_initformat.m_sampleRate )
{
outputFormat = desc.mFormat; // Select this format
m_OutputBufferIndex = streamIndex;
outputStream = stream.GetId();
break;
}
}
else
{
// check encoded formats
if (desc.mFormat.mFormatID == kAudioFormat60958AC3 || desc.mFormat.mFormatID == 'IAC3')
{
if (desc.mFormat.mChannelsPerFrame == m_initformat.m_channelLayout.Count() &&
desc.mFormat.mSampleRate == m_initformat.m_sampleRate )
{
outputFormat = desc.mFormat; // Select this format
m_OutputBufferIndex = streamIndex;
outputStream = stream.GetId();
break;
}
}
}
physicalFormats.pop_front();
}
// TODO: How do we determine if this is the right stream (not just the right format) to use?
if (outputFormat.mFormatID)
break; // We found a suitable format. No need to continue.
streamIndex++;
}
if (!outputFormat.mFormatID) // No match found
{
CLog::Log(LOGDEBUG, "CCoreAudioAEHALOSX::InitializeEncoded: "
"Unable to identify suitable output format.");
return false;
}
CLog::Log(LOGDEBUG, "CCoreAudioAEHALOSX::InitializeEncoded: "
"Selected stream[%u] - id: 0x%04X, Physical Format: %s",
m_OutputBufferIndex, (uint)outputStream, StreamDescriptionToString(outputFormat, formatString));
// TODO: Auto hogging sets this for us. Figure out how/when to turn it off or use it
// It appears that leaving this set will aslo restore the previous stream format when the
// Application exits. If auto hogging is set and we try to set hog mode, we will deadlock
// From the SDK docs: "If the AudioDevice is in a non-mixable mode, the HAL will automatically take hog mode on behalf of the first process to start an IOProc."
// Lock down the device. This MUST be done PRIOR to switching to a non-mixable format, if it is done at all
// If it is attempted after the format change, there is a high likelihood of a deadlock
// We may need to do this sooner to enable mix-disable (i.e. before setting the stream format)
// Auto-Hog does not always un-hog the device when changing back to a mixable mode.
// Handle this on our own until it is fixed.
CCoreAudioHardware::SetAutoHogMode(false);
bool autoHog = CCoreAudioHardware::GetAutoHogMode();
CLog::Log(LOGDEBUG, " CoreAudioRenderer::InitializeEncoded: "
"Auto 'hog' mode is set to '%s'.", autoHog ? "On" : "Off");
if (!autoHog) // Try to handle this ourselves
{
// Hog the device if it is not set to be done automatically
m_AudioDevice->SetHogStatus(true);
// Try to disable mixing. If we cannot, it may not be a problem
m_AudioDevice->SetMixingSupport(false);
}
m_NumLatencyFrames = m_AudioDevice->GetNumLatencyFrames();
// Configure the output stream object, this is the one we will keep
m_OutputStream->Open(outputStream);
AudioStreamBasicDescription virtualFormat;
m_OutputStream->GetVirtualFormat(&virtualFormat);
CLog::Log(LOGDEBUG, "CCoreAudioAEHALOSX::InitializeEncoded: "
"Previous Virtual Format: %s", StreamDescriptionToString(virtualFormat, formatString));
AudioStreamBasicDescription previousPhysicalFormat;
m_OutputStream->GetPhysicalFormat(&previousPhysicalFormat);
CLog::Log(LOGDEBUG, "CCoreAudioAEHALOSX::InitializeEncoded: "
"Previous Physical Format: %s", StreamDescriptionToString(previousPhysicalFormat, formatString));
// Set the active format (the old one will be reverted when we close)
m_OutputStream->SetPhysicalFormat(&outputFormat);
m_NumLatencyFrames += m_OutputStream->GetNumLatencyFrames();
m_OutputStream->GetVirtualFormat(&virtualFormat);
CLog::Log(LOGDEBUG, "CCoreAudioAEHALOSX::InitializeEncoded: "
"New Virtual Format: %s", StreamDescriptionToString(virtualFormat, formatString));
CLog::Log(LOGDEBUG, "CCoreAudioAEHALOSX::InitializeEncoded: "
"New Physical Format: %s", StreamDescriptionToString(outputFormat, formatString));
m_allowMixing = false;
return true;
}
bool CCoreAudioGraph::Open(ICoreAudioSource *pSource, AEAudioFormat &format,
AudioDeviceID deviceId, bool allowMixing, AudioChannelLayoutTag layoutTag)
{
AudioStreamBasicDescription fmt = {0};
AudioStreamBasicDescription inputFormat = {0};
AudioStreamBasicDescription outputFormat = {0};
m_deviceId = deviceId;
m_allowMixing = allowMixing;
OSStatus ret = NewAUGraph(&m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error create audio grpah. Error = %s", GetError(ret).c_str());
return false;
}
ret = AUGraphOpen(m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error open audio grpah. Error = %s", GetError(ret).c_str());
return false;
}
// get output unit
if (m_audioUnit)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error audio unit already open. double call ?");
return false;
}
m_audioUnit = new CAUOutputDevice();
if (!m_audioUnit->Open(m_audioGraph,
kAudioUnitType_Output, kAudioUnitSubType_HALOutput, kAudioUnitManufacturer_Apple))
return false;
m_audioUnit->SetBus(GetFreeBus());
m_audioUnit->GetFormatDesc(format, &inputFormat, &fmt);
if (!m_audioUnit->EnableInputOuput())
return false;
if (!m_audioUnit->SetCurrentDevice(deviceId))
return false;
if (allowMixing)
{
delete m_mixMap;
m_mixMap = CCoreAudioMixMap::CreateMixMap(m_audioUnit, format, layoutTag);
if (m_mixMap || m_mixMap->IsValid())
{
// maximum input channel ber input bus
//fmt.mChannelsPerFrame = MAXIMUM_MIXER_CHANNELS;
// get output unit
if (m_inputUnit)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error mixer unit already open. double call ?");
return false;
}
m_inputUnit = new CAUOutputDevice();
if (!m_inputUnit->Open(m_audioGraph,
kAudioUnitType_FormatConverter, kAudioUnitSubType_AUConverter, kAudioUnitManufacturer_Apple))
return false;
if (!m_inputUnit->SetFormat(&inputFormat, kAudioUnitScope_Input, kOutputBus))
return false;
if (!m_inputUnit->SetFormat(&fmt, kAudioUnitScope_Output, kOutputBus))
return false;
// get mixer unit
if (m_mixerUnit)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: Error mixer unit already open. double call ?");
return false;
}
m_mixerUnit = new CAUMatrixMixer();
if (!m_mixerUnit->Open(m_audioGraph,
kAudioUnitType_Mixer, kAudioUnitSubType_MatrixMixer, kAudioUnitManufacturer_Apple))
return false;
// set number of input buses
if (!m_mixerUnit->SetInputBusCount(MAX_CONNECTION_LIMIT))
return false;
// set number of output buses
if (!m_mixerUnit->SetOutputBusCount(1))
return false;
if (!m_mixerUnit->SetInputBusFormat(MAX_CONNECTION_LIMIT, &fmt))
return false;
if (!m_mixerUnit->SetFormat(&fmt, kAudioUnitScope_Output, kOutputBus))
return false;
ret = AUGraphConnectNodeInput(m_audioGraph, m_mixerUnit->GetNode(), 0, m_audioUnit->GetNode(), 0);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error connecting m_m_mixerNode. Error = %s", GetError(ret).c_str());
return false;
}
m_mixerUnit->SetBus(0);
// configure output unit
int busNumber = GetFreeBus();
ret = AUGraphConnectNodeInput(m_audioGraph, m_inputUnit->GetNode(), 0, m_mixerUnit->GetNode(), busNumber);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error connecting m_converterNode. Error = %s", GetError(ret).c_str());
return false;
}
m_inputUnit->SetBus(busNumber);
ret = AUGraphUpdate(m_audioGraph, NULL);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error update graph. Error = %s", GetError(ret).c_str());
return false;
}
ret = AUGraphInitialize(m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error initialize graph. Error = %s", GetError(ret).c_str());
return false;
}
// Update format structure to reflect the desired format from the mixer
// The output format of the mixer is identical to the input format, except for the channel count
fmt.mChannelsPerFrame = m_mixMap->GetOutputChannels();
UInt32 inputNumber = m_inputUnit->GetBus();
int channelOffset = GetMixerChannelOffset(inputNumber);
if (!CCoreAudioMixMap::SetMixingMatrix(m_mixerUnit, m_mixMap, &inputFormat, &fmt, channelOffset))
return false;
// Regenerate audio format and copy format for the Output AU
outputFormat = fmt;
}
else
{
outputFormat = inputFormat;
}
}
else
{
outputFormat = inputFormat;
}
if (!m_audioUnit->SetFormat(&outputFormat, kAudioUnitScope_Input, kOutputBus))
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error setting input format on audio device. Channel count %d, set it to %d",
(int)outputFormat.mChannelsPerFrame, format.m_channelLayout.Count());
outputFormat.mChannelsPerFrame = format.m_channelLayout.Count();
if (!m_audioUnit->SetFormat(&outputFormat, kAudioUnitScope_Input, kOutputBus))
return false;
}
std::string formatString;
// asume we are in dd-wave mode
if (!m_inputUnit)
{
if (!m_audioUnit->SetFormat(&inputFormat, kAudioUnitScope_Output, kInputBus))
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error setting Device Output Stream Format %s",
StreamDescriptionToString(inputFormat, formatString));
}
}
ret = AUGraphUpdate(m_audioGraph, NULL);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error update graph. Error = %s", GetError(ret).c_str());
return false;
}
AudioStreamBasicDescription inputDesc_end, outputDesc_end;
m_audioUnit->GetFormat(&inputDesc_end, kAudioUnitScope_Input, kOutputBus);
m_audioUnit->GetFormat(&outputDesc_end, kAudioUnitScope_Output, kInputBus);
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Input Stream Format %s",
StreamDescriptionToString(inputDesc_end, formatString));
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Output Stream Format %s",
StreamDescriptionToString(outputDesc_end, formatString));
if (m_mixerUnit)
{
m_mixerUnit->GetFormat(&inputDesc_end, kAudioUnitScope_Input, kOutputBus);
m_mixerUnit->GetFormat(&outputDesc_end, kAudioUnitScope_Output, kOutputBus);
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Input Stream Format %s",
StreamDescriptionToString(inputDesc_end, formatString));
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Output Stream Format %s",
StreamDescriptionToString(outputDesc_end, formatString));
}
if (m_inputUnit)
{
m_inputUnit->GetFormat(&inputDesc_end, kAudioUnitScope_Input, kOutputBus);
m_inputUnit->GetFormat(&outputDesc_end, kAudioUnitScope_Output, kOutputBus);
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Input Stream Format %s",
StreamDescriptionToString(inputDesc_end, formatString));
CLog::Log(LOGINFO, "CCoreAudioGraph::Open: Output Stream Format %s",
StreamDescriptionToString(outputDesc_end, formatString));
}
ret = AUGraphInitialize(m_audioGraph);
if (ret)
{
CLog::Log(LOGERROR, "CCoreAudioGraph::Open: "
"Error initialize graph. Error = %s", GetError(ret).c_str());
return false;
}
UInt32 bufferFrames = m_audioUnit->GetBufferFrameSize();
if (!m_audioUnit->SetMaxFramesPerSlice(bufferFrames))
return false;
SetInputSource(pSource);
return Start();
}
bool AEDeviceEnumerationOSX::FindSuitableFormatForStream(UInt32 &streamIdx, const AEAudioFormat &format, AudioStreamBasicDescription &outputFormat, EPassthroughMode &passthrough, AudioStreamID &outputStream) const
{
CLog::Log(LOGDEBUG, "%s: Finding stream for format %s", __FUNCTION__, CAEUtil::DataFormatToStr(format.m_dataFormat));
bool formatFound = false;
float outputScore = 0;
UInt32 streamIdxStart = streamIdx;
UInt32 streamIdxEnd = streamIdx + 1;
UInt32 streamIdxCurrent = streamIdx;
passthrough = PassthroughModeNone;
if (streamIdx == INT_MAX)
{
streamIdxStart = 0;
streamIdxEnd = m_caStreamInfos.size();
streamIdxCurrent = 0;
}
if (streamIdxCurrent >= m_caStreamInfos.size())
return false;
// loop over all streams or over given streams (depends on initial value of param streamIdx
for(streamIdxCurrent = streamIdxStart; streamIdxCurrent < streamIdxEnd; streamIdxCurrent++)
{
// Probe physical formats
const StreamFormatList &formats = m_caStreamInfos[streamIdxCurrent].formatList;
for (StreamFormatList::const_iterator j = formats.begin(); j != formats.end(); ++j)
{
AudioStreamBasicDescription formatDesc = j->mFormat;
// for devices with kAudioStreamAnyRate
// assume that the user uses a fixed config
// and knows what he is doing - so we use
// the requested samplerate here
if (formatDesc.mSampleRate == kAudioStreamAnyRate)
formatDesc.mSampleRate = format.m_sampleRate;
float score = ScoreFormat(formatDesc, format);
std::string formatString;
CLog::Log(LOGDEBUG, "%s: Physical Format: %s rated %f", __FUNCTION__, StreamDescriptionToString(formatDesc, formatString), score);
if (score > outputScore)
{
if (score > 10000)
{
if (score > FLT_MAX/2)
passthrough = PassthroughModeNative;
else
passthrough = PassthroughModeBitstream;
}
outputScore = score;
outputFormat = formatDesc;
outputStream = m_caStreamInfos[streamIdxCurrent].streamID;
streamIdx = streamIdxCurrent;// return the streamIdx for the caller
formatFound = true;
}
}
}
if (m_isPlanar)
outputFormat.mChannelsPerFrame = std::min((size_t)format.m_channelLayout.Count(), m_caStreamInfos.size());
return formatFound;
}
