jamulus/src/soundbase.h

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/******************************************************************************\
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* Copyright (c) 2004-2013
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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 ( SOUNDBASE_HOIHGEH8_3_4344456456345634565KJIUHF1912__INCLUDED_ )
#define SOUNDBASE_HOIHGEH8_3_4344456456345634565KJIUHF1912__INCLUDED_
#include <QThread>
#include <QString>
#include <QMessageBox>
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#include "global.h"
#include "util.h"
// TODO better solution with enum definition
// problem: in signals it seems not to work to use CSoundBase::ESndCrdResetType
enum ESndCrdResetType
{
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RS_ONLY_RESTART = 1,
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RS_ONLY_RESTART_AND_INIT,
RS_RELOAD_RESTART_AND_INIT
};
/* Classes ********************************************************************/
class CSoundBase : public QThread
{
Q_OBJECT
public:
CSoundBase ( const QString& strNewSystemDriverTechniqueName,
const bool bNewIsCallbackAudioInterface,
void (*fpNewProcessCallback) ( CVector<int16_t>& psData, void* pParg ),
void* pParg );
virtual int Init ( const int iNewPrefMonoBufferSize );
virtual void Start();
virtual void Stop();
// device selection
virtual int GetNumDev() { return lNumDevs; }
virtual QString GetDeviceName ( const int iDiD ) { return strDriverNames[iDiD]; }
virtual QString SetDev ( const int );
virtual int GetDev() { return lCurDev; }
virtual int GetNumInputChannels() { return 2; }
virtual QString GetInputChannelName ( const int ) { return "Default"; }
virtual void SetLeftInputChannel ( const int ) {}
virtual void SetRightInputChannel ( const int ) {}
virtual int GetLeftInputChannel() { return 0; }
virtual int GetRightInputChannel() { return 1; }
virtual int GetNumOutputChannels() { return 2; }
virtual QString GetOutputChannelName ( const int ) { return "Default"; }
virtual void SetLeftOutputChannel ( const int ) {}
virtual void SetRightOutputChannel ( const int ) {}
virtual int GetLeftOutputChannel() { return 0; }
virtual int GetRightOutputChannel() { return 1; }
virtual void OpenDriverSetup() {}
bool IsRunning() const { return bRun; }
// TODO this should be protected but since it is used
// in a callback function it has to be public -> better solution
void EmitReinitRequestSignal ( const ESndCrdResetType eSndCrdResetType )
{ emit ReinitRequest ( eSndCrdResetType ); }
protected:
// driver handling
virtual QString LoadAndInitializeDriver ( int ) { return ""; }
virtual void UnloadCurrentDriver() {}
QVector<QString> LoadAndInitializeFirstValidDriver();
// function pointer to callback function
void (*fpProcessCallback) ( CVector<int16_t>& psData, void* arg );
void* pProcessCallbackArg;
// callback function call for derived classes
void ProcessCallback ( CVector<int16_t>& psData )
{
(*fpProcessCallback) ( psData, pProcessCallbackArg );
}
// these functions should be overwritten by derived class for
// non callback based audio interfaces
virtual bool Read ( CVector<int16_t>& ) { printf ( "no sound!" ); return false; }
virtual bool Write ( CVector<int16_t>& ) { printf ( "no sound!" ); return false; }
void run();
bool bRun;
bool bIsCallbackAudioInterface;
QString strSystemDriverTechniqueName;
CVector<int16_t> vecsAudioSndCrdStereo;
long lNumDevs;
long lCurDev;
QString strDriverNames[MAX_NUMBER_SOUND_CARDS];
signals:
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void ReinitRequest ( int iSndCrdResetType );
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};
#endif /* !defined ( SOUNDBASE_HOIHGEH8_3_4344456456345634565KJIUHF1912__INCLUDED_ ) */