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/* UltraStar Deluxe - Karaoke Game
*
* UltraStar Deluxe is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*/
#ifndef _FFMPEG_VIDEO_DECODE_H_
#define _FFMPEG_VIDEO_DECODE_H_
#include "ffmpeg_core.h"
#include "core/plugin_video_decode.h"
// uncomment if you want to see the debug stuff
//#define DEBUG_DISPLAY
//#define DEBUG_FRAMES
extern const videoDecoderInfo_t videoDecoderInfo;
class FFmpegVideoDecodeStream : public VideoDecodeStream {
private:
bool _opened; //**< stream successfully opened
bool _eof; //**< end-of-file state
bool _loop; //**< looping enabled
AVStream *_stream;
int _streamIndex;
AVFormatContext *_formatContext;
AVCodecContext *_codecContext;
AVCodec *_codec;
AVFrame *_avFrame;
AVFrame *_avFrameRGB;
videoFrameFormat_t _frameFormat;
enum PixelFormat _pixelFormat;
uint8_t *_frameBuffer; //**< stores a FFmpeg video frame
bool _frameTexValid; //**< if true, fFrameTex contains the current frame
#ifdef USE_SWSCALE
SwsContext *_swScaleContext;
#endif
double _aspect; //**< width/height ratio
long double _frameDuration; //**< duration of a video frame in seconds (= 1/fps)
long double _frameTime; //**< video time position (absolute)
long double _loopTime; //**< start time of the current loop
FFmpegVideoDecodeStream();
bool decodeFrame();
void synchronizeTime(AVFrame *frame, double &pts);
bool _open(const Path &filename, videoFrameFormat_t format);
void close();
public:
virtual ~FFmpegVideoDecodeStream() {
close();
}
static FFmpegVideoDecodeStream* open(const Path &filename, videoFrameFormat_t format);
virtual void setLoop(bool enable);
virtual bool getLoop();
virtual void setPosition(double time);
virtual double getPosition();
virtual int getFrameWidth();
virtual int getFrameHeight();
virtual double getFrameAspect();
virtual videoFrameFormat_t getFrameFormat();
virtual uint8_t* getFrame(long double time);
};
#endif /* _FFMPEG_VIDEO_DECODE_H_ */
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