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/**
* OpenAL++ - an object oriented toolkit for spatial sound
* Copyright (C) 2002 VRlab, Ume University
*
* OpenAL++ was created using the libraries:
* OpenAL (http://www.openal.org),
* PortAudio (http://www.portaudio.com/), and
* CommonC++ (http://cplusplus.sourceforge.net/)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#ifndef DEVICEUPDATER_H_INCLUDED_C419EA9C
#define DEVICEUPDATER_H_INCLUDED_C419EA9C
#include "openalpp/streamupdater.h"
#include "openalpp/error.h"
#include "openalpp/export.h"
#ifdef ALPP_USE_PORT_AUDIO
#include <portaudio.h>
namespace openalpp {
/**
* Updater for sound input devices (like microphones).
*/
class DeviceUpdater : public StreamUpdater, public ost::Semaphore {
PortAudioStream *stream_;
ost::Mutex inputmutex;
char *tmpbuffer_;
int tmpbufsize_,maxtmpbufsize_;
int bytesperframe_;
public:
/**
* Constructor.
* @param device is the number of the device (as PortAudio reports it).
* TODO: Change this to something non-portaudio dependant.
* @param frequency is the desired recording frequency.
* @param buffersize is the desired buffersize.
* @param format is the format of the sound.
* @param buffer1 and..
* @param buffer2 are the (OpenAL) buffers to use.
*/
OPENALPP_API DeviceUpdater(int device, unsigned int frequency,unsigned int buffersize,
SampleFormat format,
ALuint buffer1,ALuint buffer2);
/**
* Destructor.
*/
OPENALPP_API ~DeviceUpdater();
/**
* Inherited from Thread.
* This will be called when the updater is Start():ed..
*/
OPENALPP_API void run();
/**
* Enter critical section.
*/
OPENALPP_API inline void Enter() {inputmutex.enterMutex();}
/**
* Leave critical section.
*/
OPENALPP_API inline void Leave() {inputmutex.leaveMutex();}
/**
* Copy input from callback to temporary buffer.
* Update will copy the data from the temporary buffer to a sound buffer.
* @param tempbuffer is a pointer to the buffer
* @param length is the length - in bytes - of the buffer
*/
OPENALPP_API void CopyInput(void *tempbuffer,int length);
};
}
#endif // ifdef ALPP_USE_PORTAUDIO
#endif /* DEVICEUPDATER_H_INCLUDED_C419EA9C */
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