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//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// 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 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
//
// Current versions can be found at www.libavg.de
//
#ifndef _FFMpegFrameDecoder_H_
#define _FFMpegFrameDecoder_H_
#include "../avgconfigwrapper.h"
#include "../graphics/Bitmap.h"
#include "WrapFFMpeg.h"
namespace avg {
class AVG_API FFMpegFrameDecoder
{
public:
FFMpegFrameDecoder(AVStream* pStream);
virtual ~FFMpegFrameDecoder();
bool decodePacket(AVPacket* pPacket, AVFrame* pFrame, bool bFrameAfterSeek);
bool decodeLastFrame(AVFrame* pFrame);
void convertFrameToBmp(AVFrame* pFrame, BitmapPtr pBmp);
void copyPlaneToBmp(BitmapPtr pBmp, unsigned char * pData, int stride);
void handleSeek();
virtual float getCurTime() const;
virtual float getFPS() const;
virtual void setFPS(float fps);
virtual bool isEOF() const;
private:
float getFrameTime(long long dts, bool bFrameAfterSeek);
SwsContext * m_pSwsContext;
AVStream* m_pStream;
bool m_bEOF;
float m_TimeUnitsPerSecond;
long long m_StartTimestamp;
float m_LastFrameTime;
bool m_bUseStreamFPS;
float m_FPS;
};
typedef boost::shared_ptr<FFMpegFrameDecoder> FFMpegFrameDecoderPtr;
}
#endif
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