Aegisub/aegisub/audio_player_portaudio.h

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// Copyright (c) 2005-2007, Rodrigo Braz Monteiro
// 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
//
// Website: http://aegisub.cellosoft.com
// Contact: mailto:zeratul@cellosoft.com
//
#ifdef WITH_PORTAUDIO
///////////
// Headers
#include "audio_player.h"
#include "audio_provider.h"
#include "utils.h"
extern "C" {
#include <portaudio.h>
}
////////////////////
// Portaudio player
class PortAudioPlayer : public AudioPlayer {
private:
static int pa_refcount;
wxMutex PAMutex;
volatile bool stopping;
//bool softStop;
bool playing;
float volume;
volatile int64_t playPos;
volatile int64_t startPos;
volatile int64_t endPos;
void *stream;
PaTimestamp paStart;
volatile int64_t realPlayPos;
#ifndef HAVE_PA_GETSTREAMTIME
static int paCallback(void *inputBuffer, void *outputBuffer, unsigned long framesPerBuffer, PaTimestamp outTime, void *userData);
#else
static int paCallback(const void *inputBuffer, void *outputBuffer,
unsigned long framesPerBuffer,
const PaStreamCallbackTimeInfo *timei,
PaStreamCallbackFlags flags, void *userData);
#endif
public:
PortAudioPlayer();
~PortAudioPlayer();
void OpenStream();
void CloseStream();
void Play(int64_t start,int64_t count);
void Stop(bool timerToo=true);
bool IsPlaying() { return playing; }
int64_t GetStartPosition() { return startPos; }
int64_t GetEndPosition() { return endPos; }
int64_t GetCurrentPosition() { return realPlayPos; }
void SetEndPosition(int64_t pos) { endPos = pos; }
void SetCurrentPosition(int64_t pos) { playPos = pos; realPlayPos = pos; }
void SetVolume(double vol) { volume = vol; }
double GetVolume() { return volume; }
wxMutex *GetMutex() { return &PAMutex; }
};
///////////
// Factory
class PortAudioPlayerFactory : public AudioPlayerFactory {
public:
AudioPlayer *CreatePlayer() { return new PortAudioPlayer(); }
PortAudioPlayerFactory() : AudioPlayerFactory(_T("portaudio")) {}
};
#endif