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try to fix Mac audio interface issue

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This commit is contained in:
Volker Fischer 2020-04-14 19:01:23 +02:00
parent 83e95c3a7b
commit 1dabad7026
2 changed files with 27 additions and 9 deletions
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33
mac/sound.cpp
View file

@ -254,12 +254,14 @@ void CSound::GetAudioDeviceInfos ( const AudioDeviceID DeviceID,
}
}
int CSound::CountChannels ( AudioDeviceID devID,
bool isInput )
bool CSound::CountChannels ( AudioDeviceID devID,
bool isInput,
int& iNumChannels )
{
OSStatus err;
bool bIsError = true;
UInt32 propSize;
int result = 0;
iNumChannels = 0;
AudioObjectPropertyScope theScope = isInput ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput;
@ -280,12 +282,14 @@ int CSound::CountChannels ( AudioDeviceID devID,
// The correct value mNumberChannels for an AudioBuffer can be derived from the mChannelsPerFrame
// and the interleaved flag. For non interleaved formats, mNumberChannels is always 1.
// For interleaved formats, mNumberChannels is equal to mChannelsPerFrame.
result += buflist->mBuffers[i].mNumberChannels;
iNumChannels += buflist->mBuffers[i].mNumberChannels;
}
bIsError = false;
}
free ( buflist );
return result;
return bIsError;
}
QString CSound::LoadAndInitializeDriver ( int iDriverIdx )
@ -449,6 +453,9 @@ QString CSound::CheckDeviceCapabilities ( const int iDriverIdx )
"not compatible with this software." );
}
// store the input number of channels for this stream
const int iNumInChanPerFrame = CurDevStreamFormat.mChannelsPerFrame;
// check the output
AudioObjectGetPropertyData ( outputStreamID,
&stPropertyAddress,
@ -467,9 +474,19 @@ QString CSound::CheckDeviceCapabilities ( const int iDriverIdx )
"not compatible with this software." );
}
// store the input and out number of channels for this device
iNumInChan = CountChannels ( audioInputDevice[iDriverIdx], true );
iNumOutChan = CountChannels ( audioOutputDevice[iDriverIdx], false );
// store the output number of channels for this stream
const int iNumOutChanPerFrame = CurDevStreamFormat.mChannelsPerFrame;
// store the input and out number of channels for this device (note that in
// case the CountChannels failed, we use the number of channels per frame instead)
if ( CountChannels ( audioInputDevice[iDriverIdx], true, iNumInChan ) )
{
iNumInChan = iNumInChanPerFrame;
}
if ( CountChannels ( audioOutputDevice[iDriverIdx], false, iNumOutChan ) )
{
iNumOutChan = iNumOutChanPerFrame;
}
// clip the number of input/output channels to our allowed maximum
if ( iNumInChan > MAX_NUM_IN_OUT_CHANNELS )

3
mac/sound.h
View file

@ -79,7 +79,8 @@ protected:
QString CheckDeviceCapabilities ( const int iDriverIdx );
OSStatus CountChannels ( AudioDeviceID devID,
bool isInput );
bool isInput,
int& iNumChannels );
UInt32 SetBufferSize ( AudioDeviceID& audioDeviceID,
const bool bIsInput,