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Set sample rate of the device, if possible.

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This commit is contained in:
Steve Checkoway
2006-11-17 17:37:51 +00:00
parent db89c28b25
commit 5f9ee5c5bd
1 changed files with 34 additions and 18 deletions
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stepmania/src/arch/Sound/RageSoundDriver_AU.cpp
+34 -18
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@@ -97,8 +97,6 @@ RString RageSound_AU::Init()
if( streamFormat.mSampleRate <= 0 )
streamFormat.mSampleRate = 44100.0;
m_iSampleRate = int( streamFormat.mSampleRate );
// XXX Try to set the hardware sample rate.
error = AudioUnitSetProperty( m_OutputUnit,
kAudioUnitProperty_StreamFormat,
@@ -119,31 +117,49 @@ RString RageSound_AU::Init()
if( error != noErr )
LOG->Warn( WERROR("Failed to set the maximum render quality", error) );
// Try to set the hardware sample rate.
{
AudioDeviceID OutputDevice;
UInt32 size = sizeof( AudioDeviceID );
if( (error = AudioUnitGetProperty(m_OutputUnit, kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Global, 0, &OutputDevice, &size)) )
{
LOG->Warn( WERROR("No output device", error) );
}
else if( (error = AudioDeviceSetProperty(OutputDevice, NULL, 0, false, kAudioDevicePropertyNominalSampleRate,
sizeof(Float64), &streamFormat.mSampleRate)) )
{
LOG->Warn( WERROR("Couldn't set the device's sample rate", error) );
}
}
// Initialize the AU.
error = AudioUnitInitialize( m_OutputUnit );
if( error != noErr )
if( (error = AudioUnitInitialize(m_OutputUnit)) )
return ERROR( "Could not initialize the AudioUnit", error );
StartDecodeThread();
// Get the HAL's runloop and attach an observer.
CFRunLoopObserverRef observerRef;
CFRunLoopRef runLoopRef;
CFRunLoopObserverContext context = { 0, this, NULL, NULL, NULL };
UInt32 size = sizeof( CFRunLoopRef );
{
CFRunLoopObserverRef observerRef;
CFRunLoopRef runLoopRef;
CFRunLoopObserverContext context = { 0, this, NULL, NULL, NULL };
UInt32 size = sizeof( CFRunLoopRef );
if( (error = AudioHardwareGetProperty(kAudioHardwarePropertyRunLoop, &size, &runLoopRef)) )
return ERROR( "Couldn't get the HAL's run loop", error);
if( (error = AudioHardwareGetProperty(kAudioHardwarePropertyRunLoop, &size, &runLoopRef)) )
return ERROR( "Couldn't get the HAL's run loop", error);
observerRef = CFRunLoopObserverCreate( kCFAllocatorDefault, kCFRunLoopAllActivities, false, 0, NameHALThread, &context );
CFRunLoopAddObserver( runLoopRef, observerRef, kCFRunLoopDefaultMode );
CFRunLoopWakeUp( runLoopRef );
m_Semaphore.Wait();
CFRunLoopObserverInvalidate( observerRef );
CFRelease( observerRef );
observerRef = CFRunLoopObserverCreate( kCFAllocatorDefault, kCFRunLoopAllActivities, false, 0, NameHALThread, &context );
CFRunLoopAddObserver( runLoopRef, observerRef, kCFRunLoopDefaultMode );
CFRunLoopWakeUp( runLoopRef );
m_Semaphore.Wait();
CFRunLoopObserverInvalidate( observerRef );
CFRelease( observerRef );
}
error = AudioOutputUnitStart( m_OutputUnit );
if( error != noErr )
if( (error = AudioOutputUnitStart(m_OutputUnit)) )
return ERROR( "Could not start the AudioUnit", error );
m_bStarted = true;
return RString();