JackOSSAdapter.h
/*
Copyright (C) 2008 Grame & RTL 2008
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __JackOSSAdapter__
#define __JackOSSAdapter__
#include <math.h>
#include <limits.h>
#include <assert.h>
#include "JackAudioAdapterInterface.h"
#include "JackPlatformPlug.h"
#include "JackError.h"
#include "jack.h"
#include "jslist.h"
namespace Jack
{
typedef jack_default_audio_sample_t jack_sample_t;
#define OSS_DRIVER_DEF_DEV "/dev/dsp"
#define OSS_DRIVER_DEF_FS 48000
#define OSS_DRIVER_DEF_BLKSIZE 1024
#define OSS_DRIVER_DEF_NPERIODS 2
#define OSS_DRIVER_DEF_BITS 16
#define OSS_DRIVER_DEF_INS 2
#define OSS_DRIVER_DEF_OUTS 2
class JackOSSAdapter : public JackAudioAdapterInterface, public JackRunnableInterface
{
enum { kRead = 1, kWrite = 2, kReadWrite = 3 };
private:
JackThread fThread;
char fCaptureDriverName[JACK_CLIENT_NAME_SIZE+1];
char fPlaybackDriverName[JACK_CLIENT_NAME_SIZE+1];
int fInFD;
int fOutFD;
int fBits;
int fSampleFormat;
int fNperiods;
unsigned int fSampleSize;
int fRWMode;
bool fIgnoreHW;
bool fExcl;
unsigned int fInputBufferSize;
unsigned int fOutputBufferSize;
void* fInputBuffer;
void* fOutputBuffer;
float** fInputSampleBuffer;
float** fOutputSampleBuffer;
bool fFirstCycle;
int OpenInput();
int OpenOutput();
void CloseAux();
void SetSampleFormat();
void DisplayDeviceInfo();
public:
JackOSSAdapter(jack_nframes_t buffer_size, jack_nframes_t sample_rate, const JSList* params);
~JackOSSAdapter()
{}
int Open();
int Close();
int Read();
int Write();
int SetBufferSize(jack_nframes_t buffer_size);
bool Execute();
};
}
#ifdef __cplusplus
extern "C"
{
#endif
#include "JackCompilerDeps.h"
#include "driver_interface.h"
SERVER_EXPORT jack_driver_desc_t* jack_get_descriptor();
#ifdef __cplusplus
}
#endif
#endif
Jack
Definition: JackAC3Encoder.cpp:30
Jack::JackOSSAdapter
The OSS adapter.
Definition: JackOSSAdapter.h:49
Jack::JackRunnableInterface
The base class for runnable objects, that have an Init and Execute method to be called in a threa...
Definition: JackThread.h:34
Jack::JackAudioAdapterInterface
Base class for audio adapters.
Definition: JackAudioAdapterInterface.h:65
_JSList
Definition: linux/alsa/jslist.h:35
jack_driver_desc_t
Definition: driver_interface.h:132
Jack::JackMachThread
Darwin threads. Real-time threads are actually "time constraint" threads.
Definition: JackMachThread.h:92