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major rewrite of the CoreAudio code to avoid the runtime warning about depriciated functions/modules

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This commit is contained in:
Volker Fischer 2015-11-17 17:42:28 +00:00
parent 6a55eb3e7e
commit 14d5460fd1
2 changed files with 199 additions and 355 deletions
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498
mac/sound.cpp
View file

@ -41,6 +41,7 @@ CSound::CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* ar
AudioObjectPropertyAddress property = { kAudioHardwarePropertyRunLoop,
kAudioObjectPropertyScopeGlobal,
kAudioObjectPropertyElementMaster };
AudioObjectSetPropertyData ( kAudioObjectSystemObject,
&property,
0,
@ -48,113 +49,6 @@ CSound::CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* ar
sizeof ( CFRunLoopRef ),
&theRunLoop );
// set up stream format
streamFormat.mSampleRate = SYSTEM_SAMPLE_RATE_HZ;
streamFormat.mFormatID = kAudioFormatLinearPCM;
streamFormat.mFormatFlags = kAudioFormatFlagIsSignedInteger;
streamFormat.mFramesPerPacket = 1;
streamFormat.mBytesPerFrame = 4;
streamFormat.mBytesPerPacket = 4;
streamFormat.mChannelsPerFrame = 2; // stereo
streamFormat.mBitsPerChannel = 16;
// set up a callback struct for new input data
inputCallbackStruct.inputProc = processInput;
inputCallbackStruct.inputProcRefCon = this;
// set up a callback struct for new output data
outputCallbackStruct.inputProc = processOutput;
outputCallbackStruct.inputProcRefCon = this;
// allocate memory for buffer struct
pBufferList = (AudioBufferList*) malloc ( offsetof ( AudioBufferList,
mBuffers[0] ) + sizeof ( AudioBuffer ) );
// open the default unit
ComponentDescription desc;
desc.componentType = kAudioUnitType_Output;
desc.componentSubType = kAudioUnitSubType_HALOutput;
desc.componentManufacturer = kAudioUnitManufacturer_Apple;
desc.componentFlags = 0;
desc.componentFlagsMask = 0;
Component comp = FindNextComponent ( NULL, &desc );
if ( comp == NULL )
{
throw CGenErr ( tr ( "No CoreAudio next component found" ) );
}
if ( OpenAComponent ( comp, &audioInputUnit ) )
{
throw CGenErr ( tr ( "CoreAudio creating input component instance failed" ) );
}
if ( OpenAComponent ( comp, &audioOutputUnit ) )
{
throw CGenErr ( tr ( "CoreAudio creating output component instance failed" ) );
}
// we enable input and disable output for input component
UInt32 enableIO = 1;
AudioUnitSetProperty ( audioInputUnit,
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Input,
1, // input element
&enableIO,
sizeof ( enableIO ) );
enableIO = 0;
AudioUnitSetProperty ( audioInputUnit,
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Output,
0, // output element
&enableIO,
sizeof ( enableIO ) );
// set up a callback function for new input data
if ( AudioUnitSetProperty ( audioInputUnit,
kAudioOutputUnitProperty_SetInputCallback,
kAudioUnitScope_Global,
0,
&inputCallbackStruct,
sizeof ( inputCallbackStruct ) ) )
{
throw CGenErr ( tr ( "CoreAudio audio unit set property failed" ) );
}
// set input stream format
if ( AudioUnitSetProperty ( audioInputUnit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Output,
1,
&streamFormat,
sizeof ( streamFormat ) ) )
{
throw CGenErr ( tr ( "CoreAudio stream format set property failed" ) );
}
// set up a callback function for new output data
if ( AudioUnitSetProperty ( audioOutputUnit,
kAudioUnitProperty_SetRenderCallback,
kAudioUnitScope_Global,
0,
&outputCallbackStruct,
sizeof ( outputCallbackStruct ) ) )
{
throw CGenErr ( tr ( "CoreAudio audio unit set property failed" ) );
}
// set output stream format
if ( AudioUnitSetProperty ( audioOutputUnit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Input,
0,
&streamFormat,
sizeof ( streamFormat ) ) )
{
throw CGenErr ( tr ( "CoreAudio stream format set property failed" ) );
}
// Get available input/output devices --------------------------------------
UInt32 iPropertySize;
@ -183,7 +77,7 @@ CSound::CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* ar
audioDevices );
// calculate device count based on size of returned data array
const UInt32 deviceCount = ( iPropertySize / sizeof ( AudioDeviceID ) );
const UInt32 deviceCount = iPropertySize / sizeof ( AudioDeviceID );
// always add system default devices for input and output as first entry
lNumDevs = 0;
@ -263,6 +157,8 @@ CSound::CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* ar
}
}
free ( audioDevices );
// init device index as not initialized (invalid)
lCurDev = INVALID_SNC_CARD_DEVICE;
CurrentAudioInputDeviceID = 0;
@ -273,41 +169,46 @@ void CSound::GetAudioDeviceInfos ( const AudioDeviceID DeviceID,
bool& bIsInput,
bool& bIsOutput )
{
// check if device is input or output or both (is that possible?)
// we do this by trying to set the current device for the audio unit
// with the parameter input and output and then we simply check the
// error/ok result
bIsInput = !AudioUnitSetProperty ( audioInputUnit,
kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Global,
1,
&DeviceID,
sizeof ( AudioDeviceID ) );
UInt32 iPropertySize;
AudioObjectPropertyAddress stPropertyAddress;
bIsOutput = !AudioUnitSetProperty ( audioOutputUnit,
kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Global,
// init return values
strDeviceName = "UNKNOWN"; // init value in case no name is available
bIsInput = false;
bIsOutput = false;
// check if device is input or output or both (is that possible?)
stPropertyAddress.mSelector = kAudioDevicePropertyStreams;
stPropertyAddress.mElement = kAudioObjectPropertyElementMaster;
// input check
stPropertyAddress.mScope = kAudioDevicePropertyScopeInput;
AudioObjectGetPropertyDataSize ( DeviceID,
&stPropertyAddress,
0,
&DeviceID,
sizeof ( AudioDeviceID ) );
NULL,
&iPropertySize );
bIsInput = ( iPropertySize > 0 ); // check if any input streams are available
// output check
stPropertyAddress.mScope = kAudioDevicePropertyScopeOutput;
AudioObjectGetPropertyDataSize ( DeviceID,
&stPropertyAddress,
0,
NULL,
&iPropertySize );
bIsOutput = ( iPropertySize > 0 ); // check if any output streams are available
// get property name
UInt32 iPropertySize = sizeof ( CFStringRef );
CFStringRef sPropertyStringValue;
AudioObjectPropertyAddress stPropertyAddress;
stPropertyAddress.mSelector = kAudioObjectPropertyName;
if ( bIsInput )
{
stPropertyAddress.mScope = kAudioDevicePropertyScopeInput;
}
else
{
stPropertyAddress.mScope = kAudioDevicePropertyScopeOutput;
}
stPropertyAddress.mElement = 0;
stPropertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
iPropertySize = sizeof ( CFStringRef );
AudioObjectGetPropertyData ( DeviceID,
&stPropertyAddress,
@ -317,8 +218,6 @@ void CSound::GetAudioDeviceInfos ( const AudioDeviceID DeviceID,
&sPropertyStringValue );
// first check if the string is not empty
strDeviceName = "UNKNOWN"; // init value in case no name is available
if ( CFStringGetLength ( sPropertyStringValue ) > 0 )
{
// convert CFString in c-string (quick hack!) and then in QString
@ -332,33 +231,13 @@ void CSound::GetAudioDeviceInfos ( const AudioDeviceID DeviceID,
{
strDeviceName = sC_strPropValue;
}
free ( sC_strPropValue );
}
}
QString CSound::LoadAndInitializeDriver ( int iDriverIdx )
{
// set input device
if ( AudioUnitSetProperty ( audioInputUnit,
kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Global,
1,
&audioInputDevice[iDriverIdx],
sizeof ( AudioDeviceID ) ) )
{
throw CGenErr ( tr ( "CoreAudio input AudioUnitSetProperty call failed" ) );
}
// set output device
if ( AudioUnitSetProperty ( audioOutputUnit,
kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Global,
0,
&audioOutputDevice[iDriverIdx],
sizeof ( AudioDeviceID ) ) )
{
throw CGenErr ( tr ( "CoreAudio output AudioUnitSetProperty call failed" ) );
}
// check device capabilities if it fullfills our requirements
const QString strStat = CheckDeviceCapabilities ( iDriverIdx );
@ -368,19 +247,6 @@ QString CSound::LoadAndInitializeDriver ( int iDriverIdx )
// store ID of selected driver if initialization was successful
lCurDev = iDriverIdx;
CurrentAudioInputDeviceID = audioInputDevice[iDriverIdx];
// TODO why is only the input enough...?
// setup callback for xruns (only for input is enough)
AudioObjectPropertyAddress stPropertyAddress;
stPropertyAddress.mSelector = kAudioDeviceProcessorOverload;
stPropertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
stPropertyAddress.mElement = kAudioObjectPropertyElementMaster;
AudioObjectAddPropertyListener ( audioInputDevice[lCurDev],
&stPropertyAddress,
deviceNotification,
this );
}
return strStat;
@ -388,30 +254,31 @@ QString CSound::LoadAndInitializeDriver ( int iDriverIdx )
QString CSound::CheckDeviceCapabilities ( const int iDriverIdx )
{
UInt32 size;
const Float64 fSystemSampleRate = (Float64) SYSTEM_SAMPLE_RATE_HZ;
AudioObjectPropertyAddress stSRatePropertyAddress;
UInt32 iPropertySize;
Float64 inputSampleRate;
AudioStreamBasicDescription CurDevStreamFormat;
const Float64 fSystemSampleRate = static_cast<Float64> ( SYSTEM_SAMPLE_RATE_HZ );
AudioObjectPropertyAddress stPropertyAddress;
stSRatePropertyAddress.mSelector = kAudioDevicePropertyNominalSampleRate;
stSRatePropertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
stSRatePropertyAddress.mElement = kAudioObjectPropertyElementMaster;
stPropertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
stPropertyAddress.mElement = kAudioObjectPropertyElementMaster;
// check input device sample rate
size = sizeof ( Float64 );
Float64 inputSampleRate;
stPropertyAddress.mSelector = kAudioDevicePropertyNominalSampleRate;
iPropertySize = sizeof ( Float64 );
AudioUnitGetProperty ( audioInputUnit,
kAudioUnitProperty_SampleRate,
kAudioUnitScope_Input,
1,
&inputSampleRate,
&size );
AudioObjectGetPropertyData ( audioInputDevice[iDriverIdx],
&stPropertyAddress,
0,
NULL,
&iPropertySize,
&inputSampleRate );
if ( static_cast<int> ( inputSampleRate ) != SYSTEM_SAMPLE_RATE_HZ )
if ( inputSampleRate != fSystemSampleRate )
{
// try to change the sample rate
if ( AudioObjectSetPropertyData ( audioInputDevice[iDriverIdx],
&stSRatePropertyAddress,
&stPropertyAddress,
0,
NULL,
sizeof ( Float64 ),
@ -425,20 +292,21 @@ QString CSound::CheckDeviceCapabilities ( const int iDriverIdx )
}
// check output device sample rate
size = sizeof ( Float64 );
iPropertySize = sizeof ( Float64 );
Float64 outputSampleRate;
AudioUnitGetProperty ( audioOutputUnit,
kAudioUnitProperty_SampleRate,
kAudioUnitScope_Output,
0,
&outputSampleRate,
&size );
if ( static_cast<int> ( outputSampleRate ) != SYSTEM_SAMPLE_RATE_HZ )
AudioObjectGetPropertyData ( audioOutputDevice[iDriverIdx],
&stPropertyAddress,
0,
NULL,
&iPropertySize,
&outputSampleRate );
if ( outputSampleRate != fSystemSampleRate )
{
// try to change the sample rate
if ( AudioObjectSetPropertyData ( audioOutputDevice[iDriverIdx],
&stSRatePropertyAddress,
&stPropertyAddress,
0,
NULL,
sizeof ( Float64 ),
@ -451,24 +319,77 @@ QString CSound::CheckDeviceCapabilities ( const int iDriverIdx )
}
}
// According to the AudioHardware documentation: "If the format is a linear PCM
// format, the data will always be presented as 32 bit, native endian floating
// point. All conversions to and from the true physical format of the hardware
// is handled by the devices driver."
// So we check for the fixed values here.
iPropertySize = sizeof ( AudioStreamBasicDescription );
stPropertyAddress.mSelector = kAudioStreamPropertyVirtualFormat;
AudioObjectGetPropertyData ( audioOutputDevice[iDriverIdx],
&stPropertyAddress,
0,
NULL,
&iPropertySize,
&CurDevStreamFormat );
if ( ( CurDevStreamFormat.mFormatID != kAudioFormatLinearPCM ) ||
( CurDevStreamFormat.mFramesPerPacket != 1 ) ||
( CurDevStreamFormat.mBytesPerFrame != 8 ) ||
( CurDevStreamFormat.mBytesPerPacket != 8 ) ||
( CurDevStreamFormat.mChannelsPerFrame != 2 ) ||
( CurDevStreamFormat.mBitsPerChannel != 32 ) )
{
return QString ( tr ( "The audio stream format for this audio device is"
"not compatible with the requirements." ) );
}
// TODO mSampleRate, mFormatFlags = kAudioFormatFlagIsSignedInteger
// TODO check input device, too!
qDebug() << "mBitsPerChannel" << CurDevStreamFormat.mBitsPerChannel;
qDebug() << "mBytesPerFrame" << CurDevStreamFormat.mBytesPerFrame;
qDebug() << "mBytesPerPacket" << CurDevStreamFormat.mBytesPerPacket;
qDebug() << "mChannelsPerFrame" << CurDevStreamFormat.mChannelsPerFrame;
qDebug() << "mFramesPerPacket" << CurDevStreamFormat.mFramesPerPacket;
qDebug() << "mSampleRate" << CurDevStreamFormat.mSampleRate;
// everything is ok, return empty string for "no error" case
return "";
}
void CSound::CloseCoreAudio()
{
// clean up
AudioUnitUninitialize ( audioInputUnit );
AudioUnitUninitialize ( audioOutputUnit );
CloseComponent ( audioInputUnit );
CloseComponent ( audioOutputUnit );
}
void CSound::Start()
{
// start the rendering
AudioOutputUnitStart ( audioInputUnit );
AudioOutputUnitStart ( audioOutputUnit );
// setup callback for xruns (only for input is enough)
AudioObjectPropertyAddress stPropertyAddress;
stPropertyAddress.mSelector = kAudioDeviceProcessorOverload;
stPropertyAddress.mElement = kAudioObjectPropertyElementMaster;
stPropertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
AudioObjectAddPropertyListener ( audioInputDevice[lCurDev],
&stPropertyAddress,
deviceNotification,
this );
// register the callback function for input and output
AudioDeviceCreateIOProcID ( audioInputDevice[lCurDev],
callbackIO,
this,
&audioInputProcID );
AudioDeviceCreateIOProcID ( audioOutputDevice[lCurDev],
callbackIO,
this,
&audioOutputProcID );
// start the audio stream
AudioDeviceStart ( audioInputDevice[lCurDev], audioInputProcID );
AudioDeviceStart ( audioOutputDevice[lCurDev], audioOutputProcID );
// call base class
CSoundBase::Start();
@ -477,8 +398,24 @@ void CSound::Start()
void CSound::Stop()
{
// stop the audio stream
AudioOutputUnitStop ( audioInputUnit );
AudioOutputUnitStop ( audioOutputUnit );
AudioDeviceStop ( audioInputDevice[lCurDev], audioInputProcID );
AudioDeviceStop ( audioOutputDevice[lCurDev], audioOutputProcID );
// unregister the callback function for input and output
AudioDeviceDestroyIOProcID ( audioInputDevice[lCurDev], audioInputProcID );
AudioDeviceDestroyIOProcID ( audioOutputDevice[lCurDev], audioOutputProcID );
// unregister the callback function for xruns
AudioObjectPropertyAddress stPropertyAddress;
stPropertyAddress.mSelector = kAudioDeviceProcessorOverload;
stPropertyAddress.mElement = kAudioObjectPropertyElementMaster;
stPropertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
AudioObjectRemovePropertyListener( audioInputDevice[lCurDev],
&stPropertyAddress,
deviceNotification,
this );
// call base class
CSoundBase::Stop();
@ -530,41 +467,6 @@ int CSound::Init ( const int iNewPrefMonoBufferSize )
// create memory for intermediate audio buffer
vecsTmpAudioSndCrdStereo.Init ( iCoreAudioBufferSizeStereo );
// fill audio unit buffer struct
pBufferList->mNumberBuffers = 1;
pBufferList->mBuffers[0].mNumberChannels = 2; // stereo
pBufferList->mBuffers[0].mDataByteSize = iCoreAudioBufferSizeMono * 4; // 2 bytes, 2 channels
pBufferList->mBuffers[0].mData = &vecsTmpAudioSndCrdStereo[0];
// initialize units
if ( AudioUnitInitialize ( audioInputUnit ) )
{
throw CGenErr ( tr ( "Initialization of CoreAudio failed" ) );
}
if ( AudioUnitInitialize ( audioOutputUnit ) )
{
throw CGenErr ( tr ( "Initialization of CoreAudio failed" ) );
}
/*
// TEST
AudioDeviceIOProcID testIn;
AudioDeviceCreateIOProcID ( audioInputDevice[lCurDev],
callbackIO,
this,
&testIn );
AudioDeviceIOProcID testOut;
AudioDeviceCreateIOProcID ( audioOutputDevice[lCurDev],
callbackIO,
this,
&testOut );
*/
return iCoreAudioBufferSizeMono;
}
@ -584,7 +486,7 @@ UInt32 CSound::SetBufferSize ( AudioDeviceID& audioDeviceID,
stPropertyAddress.mScope = kAudioDevicePropertyScopeOutput;
}
stPropertyAddress.mElement = 0;
stPropertyAddress.mElement = kAudioObjectPropertyElementMaster;
// first set the value
UInt32 iSizeBufValue = sizeof ( UInt32 );
@ -609,29 +511,25 @@ UInt32 CSound::SetBufferSize ( AudioDeviceID& audioDeviceID,
OSStatus CSound::deviceNotification ( AudioDeviceID,
UInt32,
const AudioObjectPropertyAddress* inAddresses,
void* inRefCon )
const AudioObjectPropertyAddress* /* inAddresses */,
void* /* inRefCon */ )
{
// TODO: Do we need this anymore? If not, we can completely remove this function...
/*
CSound* pSound = static_cast<CSound*> ( inRefCon );
if ( inAddresses->mSelector == kAudioDeviceProcessorOverload )
{
// TODO: Do we need this anymore? If not, we can completely remove this function...
/*
// xrun handling (it is important to act on xruns under CoreAudio
// since it seems that the xrun situation stays stable for a
// while and would give you a long time bad audio)
pSound->EmitReinitRequestSignal ( RS_ONLY_RESTART );
*/
}
*/
return noErr;
}
/*
// TEST
OSStatus CSound::callbackIO ( AudioDeviceID inDevice,
const AudioTimeStamp*,
const AudioBufferList* inInputData,
@ -642,70 +540,46 @@ OSStatus CSound::callbackIO ( AudioDeviceID inDevice,
{
CSound* pSound = static_cast<CSound*> ( inRefCon );
// both, the input and output device use the same callback function
QMutexLocker locker ( &pSound->Mutex );
if ( inDevice == pSound->CurrentAudioInputDeviceID )
{
// audio input callback, copy data first
memcpy ( &pSound->vecsTmpAudioSndCrdStereo[0],
inInputData->mBuffers[0].mData,
inInputData->mBuffers[0].mDataByteSize );
// check size (float32 has four bytes)
if ( inInputData->mBuffers[0].mDataByteSize ==
static_cast<UInt32> ( pSound->iCoreAudioBufferSizeStereo * 4 ) )
{
// get a pointer to the input data of the correct type
Float32* pInData = static_cast<Float32*> ( inInputData->mBuffers[0].mData );
// copy input data
for ( int i = 0; i < pSound->iCoreAudioBufferSizeStereo; i++ )
{
pSound->vecsTmpAudioSndCrdStereo[i] =
(short) ( pInData[i] * _MAXSHORT );
}
// call processing callback function
pSound->ProcessCallback ( pSound->vecsTmpAudioSndCrdStereo );
}
}
else
{
// audio output callback, simply copy data
memcpy ( outOutputData->mBuffers[0].mData,
&pSound->vecsTmpAudioSndCrdStereo[0],
outOutputData->mBuffers[0].mDataByteSize );
// check size (float32 has four bytes)
if ( outOutputData->mBuffers[0].mDataByteSize ==
static_cast<UInt32> ( pSound->iCoreAudioBufferSizeStereo * 4 ) )
{
// get a pointer to the input data of the correct type
Float32* pOutData = static_cast<Float32*> ( outOutputData->mBuffers[0].mData );
// copy output data
for ( int i = 0; i < pSound->iCoreAudioBufferSizeStereo; i++ )
{
pOutData[i] = (Float32)
pSound->vecsTmpAudioSndCrdStereo[i] / _MAXSHORT;
}
}
}
return kAudioHardwareNoError;
}
*/
OSStatus CSound::processInput ( void* inRefCon,
AudioUnitRenderActionFlags* ioActionFlags,
const AudioTimeStamp* inTimeStamp,
UInt32 inBusNumber,
UInt32 inNumberFrames,
AudioBufferList* )
{
CSound* pSound = static_cast<CSound*> ( inRefCon );
QMutexLocker locker ( &pSound->Mutex );
// get the new audio data
AudioUnitRender ( pSound->audioInputUnit,
ioActionFlags,
inTimeStamp,
inBusNumber,
inNumberFrames,
pSound->pBufferList );
// call processing callback function
pSound->ProcessCallback ( pSound->vecsTmpAudioSndCrdStereo );
return noErr;
}
OSStatus CSound::processOutput ( void* inRefCon,
AudioUnitRenderActionFlags*,
const AudioTimeStamp*,
UInt32,
UInt32,
AudioBufferList* ioData )
{
CSound* pSound = static_cast<CSound*> ( inRefCon );
QMutexLocker locker ( &pSound->Mutex );
memcpy ( ioData->mBuffers[0].mData,
&pSound->vecsTmpAudioSndCrdStereo[0],
pSound->pBufferList->mBuffers[0].mDataByteSize );
return noErr;
}

36
mac/sound.h
View file

@ -25,11 +25,8 @@
#if !defined(_SOUND_H__9518A621345F78_363456876UZGSDF82CF549__INCLUDED_)
#define _SOUND_H__9518A621345F78_363456876UZGSDF82CF549__INCLUDED_
#include <CoreServices/CoreServices.h>
#include <AudioUnit/AudioUnit.h>
#include <CoreAudio/AudioHardware.h>
#include <CoreAudio/CoreAudio.h>
#include <QMutex>
#include "util.h"
#include "soundbase.h"
#include "global.h"
@ -39,7 +36,6 @@ class CSound : public CSoundBase
{
public:
CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* arg ), void* arg );
virtual ~CSound() { CloseCoreAudio(); }
virtual int Init ( const int iNewPrefMonoBufferSize );
virtual void Start();
@ -57,8 +53,6 @@ protected:
QString CheckDeviceCapabilities ( const int iDriverIdx );
void CloseCoreAudio();
UInt32 SetBufferSize ( AudioDeviceID& audioDeviceID,
const bool bIsInput,
UInt32 iPrefBufferSize );
@ -74,8 +68,6 @@ protected:
const AudioObjectPropertyAddress* inAddresses,
void* inRefCon );
/*
// TEST
static OSStatus callbackIO ( AudioDeviceID inDevice,
const AudioTimeStamp*,
const AudioBufferList* inInputData,
@ -83,33 +75,11 @@ protected:
AudioBufferList* outOutputData,
const AudioTimeStamp*,
void* inRefCon );
*/
static OSStatus processInput ( void* inRefCon,
AudioUnitRenderActionFlags* ioActionFlags,
const AudioTimeStamp* inTimeStamp,
UInt32 inBusNumber,
UInt32 inNumberFrames,
AudioBufferList* );
static OSStatus processOutput ( void* inRefCon,
AudioUnitRenderActionFlags*,
const AudioTimeStamp*,
UInt32,
UInt32,
AudioBufferList* ioData );
AudioStreamBasicDescription streamFormat;
AURenderCallbackStruct inputCallbackStruct;
AURenderCallbackStruct outputCallbackStruct;
ComponentInstance audioInputUnit;
AudioDeviceID audioInputDevice[MAX_NUMBER_SOUND_CARDS];
ComponentInstance audioOutputUnit;
AudioDeviceID audioOutputDevice[MAX_NUMBER_SOUND_CARDS];
AudioBufferList* pBufferList;
AudioDeviceIOProcID audioInputProcID;
AudioDeviceIOProcID audioOutputProcID;
QMutex Mutex;
};