Aegisub/aegisub/audio_player_portaudio.h

// Copyright (c) 2005, 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
//


#pragma once


///////////
// Headers
#include "setup.h"
#if USE_PORTAUDIO == 1
#include "audio_player.h"
extern "C" {
#include <portaudio.h>
}

#ifdef HAVE_PA_GETSTREAMTIME
#define Pa_StreamTime Pa_GetStreamTime	/* PortAudio v19 */
#define PaTimestamp PaTime
#endif

////////////////////
// Portaudio player
class PortAudioPlayer : public AudioPlayer {
private:
	static int pa_refcount;
	wxMutex PAMutex;
	volatile bool stopping;
	//bool softStop;
	bool playing;
	float volume;

	volatile __int64 playPos;
	volatile __int64 startPos;
	volatile __int64 endPos;
	void *stream;
	PaTimestamp paStart;
	volatile __int64 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 start,__int64 count);
	void Stop(bool timerToo=true);
	bool IsPlaying() { return playing; }

	__int64 GetStartPosition() { return startPos; }
	__int64 GetEndPosition() { return endPos; }
	__int64 GetCurrentPosition() { return realPlayPos; }
	void SetEndPosition(__int64 pos) { endPos = pos; }
	void SetCurrentPosition(__int64 pos) { playPos = pos; realPlayPos = pos; }

	void SetVolume(double vol) { volume = vol; }
	double GetVolume() { return volume; }

	wxMutex *GetMutex() { return &PAMutex; }
};

#endif