Aegisub/aegisub/src/audio_player_oss.h

177 lines
3.9 KiB
C++

// Copyright (c) 2009, Grigori Goronzy
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Aegisub Project http://www.aegisub.org/
//
// $Id$
/// @file audio_player_oss.h
/// @see audio_player_oss.cpp
/// @ingroup audio_output
///
#include "config.h"
#ifdef WITH_OSS
///////////
// Headers
#ifndef AGI_PRE
#include <sys/ioctl.h>
#endif
#include <fcntl.h>
#ifdef HAVE_SOUNDCARD_H
# include <soundcard.h>
#else
# ifdef HAVE_SYS_SOUNDCARD_H
# include <sys/soundcard.h>
# endif
#endif
#include "frame_main.h"
#include "include/aegisub/audio_player.h"
#include "include/aegisub/audio_provider.h"
#include "options.h"
#include "utils.h"
//////////////
// Prototypes
class OSSPlayer;
/// DOCME
/// @class OSSPlayerThread
/// @brief DOCME
///
/// DOCME
class OSSPlayerThread : public wxThread {
private:
/// DOCME
OSSPlayer *parent;
public:
OSSPlayerThread(OSSPlayer *parent);
wxThread::ExitCode Entry();
};
/// DOCME
/// @class OSSPlayer
/// @brief DOCME
///
/// DOCME
class OSSPlayer : public AudioPlayer {
private:
friend class OSSPlayerThread;
/// DOCME
bool open;
/// DOCME
unsigned int rate; // sample rate of audio
OSSPlayerThread *thread;
/// DOCME
AudioProvider *provider;
/// DOCME
volatile bool playing;
/// DOCME
volatile float volume;
/// DOCME
volatile unsigned long start_frame; // first frame of playback
/// DOCME
volatile unsigned long cur_frame; // last written frame + 1
/// DOCME
volatile unsigned long end_frame; // last frame to play
/// DOCME
unsigned long bpf; // bytes per frame
// OSS audio device handle
volatile int dspdev;
public:
OSSPlayer();
~OSSPlayer();
void OpenStream();
void CloseStream();
void Play(int64_t start, int64_t count);
void Stop(bool timerToo=true);
bool IsPlaying();
int64_t GetStartPosition();
int64_t GetEndPosition();
int64_t GetCurrentPosition();
void SetEndPosition(int64_t pos);
void SetCurrentPosition(int64_t pos);
/// @brief DOCME
/// @param vol
/// @return
///
void SetVolume(double vol) { volume = vol; }
/// @brief DOCME
/// @return
///
double GetVolume() { return volume; }
};
/// DOCME
/// @class OSSPlayerFactory
/// @brief DOCME
///
/// DOCME
class OSSPlayerFactory : public AudioPlayerFactory {
public:
/// @brief DOCME
///
AudioPlayer *CreatePlayer() { return new OSSPlayer(); }
};
#endif