JackPortAudioDriver.h
/*
Copyright (C) 2004-2008 Grame
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 __JackPortAudioDriver__
#define __JackPortAudioDriver__
#include "JackAudioDriver.h"
#include "JackPortAudioDevices.h"
#include "JackMMCSS.h"
namespace Jack
{
class JackPortAudioDriver : public JackMMCSS, public JackAudioDriver
{
private:
PaStream* fStream;
jack_default_audio_sample_t** fInputBuffer;
jack_default_audio_sample_t** fOutputBuffer;
PaDeviceIndex fInputDevice;
PaDeviceIndex fOutputDevice;
PortAudioDevices* fPaDevices;
static int Render(const void* inputBuffer, void* outputBuffer,
unsigned long framesPerBuffer,
const PaStreamCallbackTimeInfo* timeInfo,
PaStreamCallbackFlags statusFlags,
void* userData);
PaError OpenStream(jack_nframes_t buffer_size);
void UpdateLatencies();
int Render(const void* inputBuffer, void* outputBuffer, PaStreamCallbackFlags statusFlags);
public:
JackPortAudioDriver(const char* name, const char* alias, JackLockedEngine* engine, JackSynchro* table, PortAudioDevices* pa_devices)
: JackMMCSS(), JackAudioDriver(name, alias, engine, table), fStream(NULL), fInputBuffer(NULL), fOutputBuffer(NULL),
fInputDevice(paNoDevice), fOutputDevice(paNoDevice), fPaDevices(pa_devices)
{}
virtual ~JackPortAudioDriver()
{
delete fPaDevices;
}
int Open(jack_nframes_t buffe_size,
jack_nframes_t samplerate,
bool capturing,
bool playing,
int chan_in,
int chan_out,
bool monitor,
const char* capture_driver_name,
const char* playback_driver_name,
jack_nframes_t capture_latency,
jack_nframes_t playback_latency);
int Close();
int Attach();
int Start();
int Stop();
int Read();
int Write();
// BufferSize can be changed
bool IsFixedBufferSize()
{
return false;
}
int SetBufferSize(jack_nframes_t buffer_size);
};
} // end of namespace
#endif
Jack::JackMMCSS
MMCSS services.
Definition: JackMMCSS.h:50
Jack
Definition: JackAC3Encoder.cpp:30
Jack::JackLockedEngine
Locked Engine, access to methods is serialized using a mutex.
Definition: JackLockedEngine.h:78
PaStream
void PaStream
Definition: portaudio.h:572
Jack::JackPosixSemaphore
Inter process synchronization using POSIX semaphore.
Definition: JackPosixSemaphore.h:36
PaDeviceIndex
int PaDeviceIndex
Definition: portaudio.h:153
Jack::JackPortAudioDriver
The PortAudio driver.
Definition: JackPortAudioDriver.h:34
Jack::JackAudioDriver
The base class for audio drivers: drivers with audio ports.
Definition: JackAudioDriver.h:42
PaError
int PaError
Definition: portaudio.h:63
PaStreamCallbackFlags
unsigned long PaStreamCallbackFlags
Definition: portaudio.h:646
paNoDevice
#define paNoDevice
Definition: portaudio.h:161
PaStreamCallbackTimeInfo
Definition: portaudio.h:632
PortAudioDevices
A PortAudio Devices manager.
Definition: JackPortAudioDevices.h:33