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take care of problem if input/output buffer sizes cannot be set to a common value, some cleanup

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This commit is contained in:
Volker Fischer 2010-03-13 11:04:29 +00:00
parent c4ae143efa
commit db636f9d96
2 changed files with 55 additions and 45 deletions
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98
mac/sound.cpp
View file

@ -29,7 +29,7 @@
void CSound::OpenCoreAudio() void CSound::OpenCoreAudio()
{ {
UInt32 size; UInt32 size;
ComponentResult err; ComponentResult err;
// open the default unit // open the default unit
ComponentDescription desc; ComponentDescription desc;
@ -45,15 +45,15 @@ void CSound::OpenCoreAudio()
throw CGenErr ( tr ( "No CoreAudio next component found" ) ); throw CGenErr ( tr ( "No CoreAudio next component found" ) );
} }
if ( OpenAComponent ( comp, &audioInputUnit ) ) if ( OpenAComponent ( comp, &audioInputUnit ) )
{ {
throw CGenErr ( tr ( "CoreAudio creating input component instance failed" ) ); throw CGenErr ( tr ( "CoreAudio creating input component instance failed" ) );
} }
if ( OpenAComponent ( comp, &audioOutputUnit ) ) if ( OpenAComponent ( comp, &audioOutputUnit ) )
{ {
throw CGenErr ( tr ( "CoreAudio creating output component instance failed" ) ); throw CGenErr ( tr ( "CoreAudio creating output component instance failed" ) );
} }
// we enable input and disable output for input component // we enable input and disable output for input component
UInt32 enableIO = 1; UInt32 enableIO = 1;
@ -123,7 +123,7 @@ void CSound::OpenCoreAudio()
sizeof ( audioOutputDevice ) ) ) sizeof ( audioOutputDevice ) ) )
{ {
throw CGenErr ( tr ( "CoreAudio output AudioUnitSetProperty call failed" ) ); throw CGenErr ( tr ( "CoreAudio output AudioUnitSetProperty call failed" ) );
} }
// set up a callback function for new output data // set up a callback function for new output data
AURenderCallbackStruct output; AURenderCallbackStruct output;
@ -173,17 +173,17 @@ void CSound::OpenCoreAudio()
throw CGenErr ( tr ( "CoreAudio stream format set property failed" ) ); throw CGenErr ( tr ( "CoreAudio stream format set property failed" ) );
} }
// check input device sample rate // check input device sample rate
size = sizeof ( Float64 ); size = sizeof ( Float64 );
Float64 inputSampleRate; Float64 inputSampleRate;
AudioUnitGetProperty ( audioInputUnit, AudioUnitGetProperty ( audioInputUnit,
kAudioUnitProperty_SampleRate, kAudioUnitProperty_SampleRate,
kAudioUnitScope_Input, kAudioUnitScope_Input,
1, 1,
&inputSampleRate, &inputSampleRate,
&size ); &size );
if ( static_cast<int> ( inputSampleRate ) != SYSTEM_SAMPLE_RATE ) if ( static_cast<int> ( inputSampleRate ) != SYSTEM_SAMPLE_RATE )
{ {
throw CGenErr ( QString ( tr ( "Current system audio input device sample " throw CGenErr ( QString ( tr ( "Current system audio input device sample "
"rate of %1 Hz is not supported. Please open the Audio-MIDI-Setup in " "rate of %1 Hz is not supported. Please open the Audio-MIDI-Setup in "
@ -191,17 +191,17 @@ void CSound::OpenCoreAudio()
static_cast<int> ( inputSampleRate ) ).arg ( SYSTEM_SAMPLE_RATE ) ); static_cast<int> ( inputSampleRate ) ).arg ( SYSTEM_SAMPLE_RATE ) );
} }
// check output device sample rate // check output device sample rate
size = sizeof ( Float64 ); size = sizeof ( Float64 );
Float64 outputSampleRate; Float64 outputSampleRate;
AudioUnitGetProperty ( audioOutputUnit, AudioUnitGetProperty ( audioOutputUnit,
kAudioUnitProperty_SampleRate, kAudioUnitProperty_SampleRate,
kAudioUnitScope_Output, kAudioUnitScope_Output,
0, 0,
&outputSampleRate, &outputSampleRate,
&size ); &size );
if ( static_cast<int> ( outputSampleRate ) != SYSTEM_SAMPLE_RATE ) if ( static_cast<int> ( outputSampleRate ) != SYSTEM_SAMPLE_RATE )
{ {
throw CGenErr ( QString ( tr ( "Current system audio output device sample " throw CGenErr ( QString ( tr ( "Current system audio output device sample "
"rate of %1 Hz is not supported. Please open the Audio-MIDI-Setup in " "rate of %1 Hz is not supported. Please open the Audio-MIDI-Setup in "
@ -219,15 +219,15 @@ void CSound::CloseCoreAudio()
// clean up "gOutputUnit" // clean up "gOutputUnit"
AudioUnitUninitialize ( audioInputUnit ); AudioUnitUninitialize ( audioInputUnit );
AudioUnitUninitialize ( audioOutputUnit ); AudioUnitUninitialize ( audioOutputUnit );
CloseComponent ( audioInputUnit ); CloseComponent ( audioInputUnit );
CloseComponent ( audioOutputUnit ); CloseComponent ( audioOutputUnit );
} }
void CSound::Start() void CSound::Start()
{ {
// start the rendering // start the rendering
AudioOutputUnitStart ( audioInputUnit ); AudioOutputUnitStart ( audioInputUnit );
AudioOutputUnitStart ( audioOutputUnit ); AudioOutputUnitStart ( audioOutputUnit );
// call base class // call base class
CSoundBase::Start(); CSoundBase::Start();
@ -236,8 +236,8 @@ void CSound::Start()
void CSound::Stop() void CSound::Stop()
{ {
// stop the audio stream // stop the audio stream
AudioOutputUnitStop ( audioInputUnit ); AudioOutputUnitStop ( audioInputUnit );
AudioOutputUnitStop ( audioOutputUnit ); AudioOutputUnitStop ( audioOutputUnit );
// call base class // call base class
CSoundBase::Stop(); CSoundBase::Stop();
@ -247,7 +247,11 @@ int CSound::Init ( const int iNewPrefMonoBufferSize )
{ {
UInt32 iActualMonoBufferSize; UInt32 iActualMonoBufferSize;
// Error message string: in case buffer sizes on input and output cannot be set to the same value
const QString strErrBufSize = tr ( "The buffer sizes of the current "
"input and output audio device cannot be set to a common value. Please "
"choose other input/output audio devices in your system settings." );
// try to set input buffer size // try to set input buffer size
iActualMonoBufferSize = iActualMonoBufferSize =
SetBufferSize ( audioInputDevice, true, iNewPrefMonoBufferSize ); SetBufferSize ( audioInputDevice, true, iNewPrefMonoBufferSize );
@ -256,14 +260,20 @@ int CSound::Init ( const int iNewPrefMonoBufferSize )
{ {
// try to set the input buffer size to the output so that we // try to set the input buffer size to the output so that we
// have a matching pair // have a matching pair
// TODO check if setting was successful if ( SetBufferSize ( audioOutputDevice, false, iActualMonoBufferSize ) !=
SetBufferSize ( audioOutputDevice, false, iActualMonoBufferSize ); iActualMonoBufferSize )
{
throw CGenErr ( strErrBufSize );
}
} }
else else
{ {
// try to set output buffer size // try to set output buffer size
// TODO check if setting was successful if ( SetBufferSize ( audioOutputDevice, false, iNewPrefMonoBufferSize ) !=
SetBufferSize ( audioOutputDevice, false, iNewPrefMonoBufferSize ); static_cast<UInt32> ( iNewPrefMonoBufferSize ) )
{
throw CGenErr ( strErrBufSize );
}
} }
// store buffer size // store buffer size
@ -271,26 +281,26 @@ int CSound::Init ( const int iNewPrefMonoBufferSize )
// init base class // init base class
CSoundBase::Init ( iCoreAudioBufferSizeMono ); CSoundBase::Init ( iCoreAudioBufferSizeMono );
// set internal buffer size value and calculate stereo buffer size // set internal buffer size value and calculate stereo buffer size
iCoreAudioBufferSizeStero = 2 * iCoreAudioBufferSizeMono; iCoreAudioBufferSizeStero = 2 * iCoreAudioBufferSizeMono;
// create memory for intermediate audio buffer // create memory for intermediate audio buffer
vecsTmpAudioSndCrdStereo.Init ( iCoreAudioBufferSizeStero ); vecsTmpAudioSndCrdStereo.Init ( iCoreAudioBufferSizeStero );
// fill audio unit buffer struct // fill audio unit buffer struct
pBufferList->mNumberBuffers = 1; pBufferList->mNumberBuffers = 1;
pBufferList->mBuffers[0].mNumberChannels = 2; // stereo pBufferList->mBuffers[0].mNumberChannels = 2; // stereo
pBufferList->mBuffers[0].mDataByteSize = iCoreAudioBufferSizeMono * 4; // 2 bytes, 2 channels pBufferList->mBuffers[0].mDataByteSize = iCoreAudioBufferSizeMono * 4; // 2 bytes, 2 channels
pBufferList->mBuffers[0].mData = &vecsTmpAudioSndCrdStereo[0]; pBufferList->mBuffers[0].mData = &vecsTmpAudioSndCrdStereo[0];
// initialize unit // initialize unit
if ( AudioUnitInitialize ( audioInputUnit ) ) if ( AudioUnitInitialize ( audioInputUnit ) )
{ {
throw CGenErr ( tr ( "Initialization of CoreAudio failed" ) ); throw CGenErr ( tr ( "Initialization of CoreAudio failed" ) );
} }
if ( AudioUnitInitialize ( audioOutputUnit ) ) if ( AudioUnitInitialize ( audioOutputUnit ) )
{ {
throw CGenErr ( tr ( "Initialization of CoreAudio failed" ) ); throw CGenErr ( tr ( "Initialization of CoreAudio failed" ) );
} }
@ -349,20 +359,20 @@ OSStatus CSound::processInput ( void* inRefCon,
return noErr; return noErr;
} }
OSStatus CSound::processOutput ( void* inRefCon, OSStatus CSound::processOutput ( void* inRefCon,
AudioUnitRenderActionFlags*, AudioUnitRenderActionFlags*,
const AudioTimeStamp*, const AudioTimeStamp*,
UInt32, UInt32,
UInt32, UInt32,
AudioBufferList* ioData ) AudioBufferList* ioData )
{ {
CSound* pSound = reinterpret_cast<CSound*> ( inRefCon ); CSound* pSound = reinterpret_cast<CSound*> ( inRefCon );
QMutexLocker locker ( &pSound->Mutex ); QMutexLocker locker ( &pSound->Mutex );
memcpy ( ioData->mBuffers[0].mData, memcpy ( ioData->mBuffers[0].mData,
&pSound->vecsTmpAudioSndCrdStereo[0], &pSound->vecsTmpAudioSndCrdStereo[0],
pSound->pBufferList->mBuffers[0].mDataByteSize); pSound->pBufferList->mBuffers[0].mDataByteSize);
return noErr; return noErr;
} }

2
mac/sound.h
View file

@ -70,7 +70,7 @@ protected:
static OSStatus processOutput ( void* inRefCon,AudioUnitRenderActionFlags*, static OSStatus processOutput ( void* inRefCon,AudioUnitRenderActionFlags*,
const AudioTimeStamp*, UInt32, UInt32, const AudioTimeStamp*, UInt32, UInt32,
AudioBufferList* ioData ); AudioBufferList* ioData );
ComponentInstance audioInputUnit; ComponentInstance audioInputUnit;
AudioDeviceID audioInputDevice; AudioDeviceID audioInputDevice;