101 lines
3.3 KiB
C++
Executable file
101 lines
3.3 KiB
C++
Executable file
/******************************************************************************\
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* Copyright (c) 2004-2009
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*
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* Author(s):
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* Volker Fischer
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\******************************************************************************/
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#if !defined(_SOUND_H__9518A621345F78_3634567_8C0D_EEBF182CF549__INCLUDED_)
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#define _SOUND_H__9518A621345F78_3634567_8C0D_EEBF182CF549__INCLUDED_
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <qthread.h>
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#include <string.h>
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#include "util.h"
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#include "soundbase.h"
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#include "global.h"
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#if WITH_SOUND
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# include <jack/jack.h>
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#endif
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/* Definitions ****************************************************************/
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#define NUM_IN_OUT_CHANNELS 2 // always stereo
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// the number of periods is critical for latency
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#define NUM_PERIOD_BLOCKS_IN 2
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#define NUM_PERIOD_BLOCKS_OUT 1
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#define MAX_SND_BUF_IN 200
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#define MAX_SND_BUF_OUT 200
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/* Classes ********************************************************************/
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#if WITH_SOUND
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class CSound : public CSoundBase
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{
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public:
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CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* arg ), void* arg ) :
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CSoundBase ( true, fpNewProcessCallback, arg ) { OpenJack(); }
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virtual ~CSound() { CloseJack(); }
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virtual int Init ( const int iNewPrefMonoBufferSize );
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virtual void Start();
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virtual void Stop();
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// not implemented yet, always return one device and default string
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int GetNumDev() { return 1; }
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QString GetDeviceName ( const int iDiD ) { return "wave mapper"; }
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QString SetDev ( const int iNewDev ) { return ""; } // dummy
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int GetDev() { return 0; }
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// these variables should be protected but cannot since we want
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// to access them from the callback function
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CVector<short> vecsTmpAudioSndCrdStereo;
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int iJACKBufferSizeMono;
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int iJACKBufferSizeStero;
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jack_port_t* input_port_left;
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jack_port_t* input_port_right;
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jack_port_t* output_port_left;
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jack_port_t* output_port_right;
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protected:
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void OpenJack();
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void CloseJack();
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// callbacks
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static int process ( jack_nframes_t nframes, void* arg );
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static int bufferSizeCallback ( jack_nframes_t nframes, void *arg );
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static void shutdownCallback ( void *arg );
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jack_client_t* pJackClient;
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};
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#else
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// no sound -> dummy class definition
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class CSound : public CSoundBase
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{
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public:
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CSound ( void (*fpNewProcessCallback) ( CVector<short>& psData, void* pParg ), void* pParg ) :
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CSoundBase ( false, fpNewProcessCallback, pParg ) {}
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virtual ~CSound() {}
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// not used
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int GetNumDev() { return 1; }
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QString GetDeviceName ( const int ) { return "wave mapper"; }
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QString SetDev ( const int ) { return ""; } // dummy
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int GetDev() { return 0; }
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// dummy definitions
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virtual int Init ( const int iNewPrefMonoBufferSize ) { CSoundBase::Init ( iNewPrefMonoBufferSize ); }
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virtual bool Read ( CVector<short>& ) { printf ( "no sound!" ); return false; }
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virtual bool Write ( CVector<short>& ) { printf ( "no sound!" ); return false; }
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};
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#endif // WITH_SOUND
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#endif // !defined(_SOUND_H__9518A621345F78_3634567_8C0D_EEBF182CF549__INCLUDED_)
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