jamulus/mac/sound.h

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/******************************************************************************\
* Copyright (c) 2004-2011
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*
* Author(s):
* Volker Fischer
*
******************************************************************************
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
\******************************************************************************/
#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 <QMutex>
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#include "util.h"
#include "soundbase.h"
#include "global.h"
/* Classes ********************************************************************/
class CSound : public CSoundBase
{
public:
CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* arg ), void* arg );
virtual ~CSound() { CloseCoreAudio(); }
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virtual int Init ( const int iNewPrefMonoBufferSize );
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virtual void Start();
virtual void Stop();
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// these variables should be protected but cannot since we want
// to access them from the callback function
CVector<short> vecsTmpAudioSndCrdStereo;
int iCoreAudioBufferSizeMono;
int iCoreAudioBufferSizeStero;
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protected:
virtual QString LoadAndInitializeDriver ( int iIdx );
QString CheckDeviceCapabilities ( ComponentInstance& NewAudioInputUnit,
ComponentInstance& NewAudioOutputUnit );
void CloseCoreAudio();
UInt32 SetBufferSize ( AudioDeviceID& audioDeviceID,
const bool bIsInput,
UInt32 iPrefBufferSize );
void GetAudioDeviceInfos ( const AudioDeviceID DeviceID,
QString& strDeviceName,
bool& bIsInput,
bool& bIsOutput );
// callbacks
static OSStatus deviceNotification ( AudioDeviceID,
UInt32,
Boolean,
AudioDevicePropertyID inPropertyID,
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;
QMutex Mutex;
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};
#endif // !defined(_SOUND_H__9518A621345F78_363456876UZGSDF82CF549__INCLUDED_)