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added check for sample rates

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This commit is contained in:
Volker Fischer 2010-03-11 07:03:04 +00:00
parent b6ee741e2c
commit 720fe3c075
1 changed files with 31 additions and 3 deletions
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34
mac/sound.cpp
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@ -124,7 +124,7 @@ void CSound::OpenCoreAudio()
input.inputProcRefCon = this;
if ( AudioUnitSetProperty ( audioInputUnit,
kAudioOutputUnitProperty_SetInputCallback,//kAudioUnitProperty_SetRenderCallback,//
kAudioOutputUnitProperty_SetInputCallback,
kAudioUnitScope_Global,
0,
&input,
@ -159,7 +159,7 @@ void CSound::OpenCoreAudio()
output.inputProcRefCon = this;
if ( AudioUnitSetProperty ( audioOutputUnit,
kAudioUnitProperty_SetRenderCallback,//kAudioOutputUnitProperty_SetInputCallback,//
kAudioUnitProperty_SetRenderCallback,
kAudioUnitScope_Global,
0,
&output,
@ -201,9 +201,37 @@ void CSound::OpenCoreAudio()
throw CGenErr ( tr ( "CoreAudio stream format set property failed" ) );
}
// check input device sample rate
size = sizeof ( Float64 );
Float64 inputSampleRate;
AudioUnitGetProperty ( audioInputUnit,
kAudioUnitProperty_SampleRate,
kAudioUnitScope_Input,
1,
&inputSampleRate,
&size );
if ( static_cast<int> ( inputSampleRate ) != SYSTEM_SAMPLE_RATE )
{
// TODO better error message, showing current/desired sample rate and tell how to change
throw CGenErr ( tr ( "Current system input device sample rate not supported" ) );
}
// check output device sample rate
size = sizeof ( Float64 );
Float64 outputSampleRate;
AudioUnitGetProperty ( audioOutputUnit,
kAudioUnitProperty_SampleRate,
kAudioUnitScope_Output,
0,
&outputSampleRate,
&size );
// TODO check for required sample rate, if not available, throw error message
if ( static_cast<int> ( outputSampleRate ) != SYSTEM_SAMPLE_RATE )
{
// TODO better error message, showing current/desired sample rate and tell how to change
throw CGenErr ( tr ( "Current system output device sample rate not supported" ) );
}
// TEST