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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 _AsyncVideoDecoder_H_
#define _AsyncVideoDecoder_H_
#include "../api.h"
#include "VideoDecoder.h"
#include "VideoDemuxerThread.h"
#include "VideoDecoderThread.h"
#include "AudioDecoderThread.h"
#include "VideoMsg.h"
#include "../graphics/Bitmap.h"
#include "../audio/AudioParams.h"
#include <boost/thread/mutex.hpp>
#include <string>
namespace avg {
class AVG_API AsyncVideoDecoder: public VideoDecoder
{
public:
AsyncVideoDecoder(int queueLength);
virtual ~AsyncVideoDecoder();
virtual void open(const std::string& sFilename, bool bUseHardwareAcceleration,
bool bEnableSound);
virtual void startDecoding(bool bDeliverYCbCr, const AudioParams* pAP);
virtual void close();
virtual void seek(float destTime);
virtual void loop();
virtual int getCurFrame() const;
virtual int getNumFramesQueued() const;
virtual float getCurTime() const;
virtual float getFPS() const;
virtual void setFPS(float fps);
virtual FrameAvailableCode renderToBmps(std::vector<BitmapPtr>& pBmps,
float timeWanted);
void updateAudioStatus();
virtual bool isEOF() const;
virtual void throwAwayFrame(float timeWanted);
AudioMsgQueuePtr getAudioMsgQ();
AudioMsgQueuePtr getAudioStatusQ() const;
private:
void setupDemuxer(std::vector<int> streamIndexes);
void deleteDemuxer();
VideoMsgPtr getBmpsForTime(float timeWanted, FrameAvailableCode& frameAvailable);
VideoMsgPtr getNextBmps(bool bWait);
void waitForSeekDone();
void checkForSeekDone();
void handleVSeekMsg(VideoMsgPtr pMsg);
void handleVSeekDone(AudioMsgPtr pMsg);
void handleAudioMsg(AudioMsgPtr pMsg);
void returnFrame(VideoMsgPtr pFrameMsg);
bool isSeeking() const;
bool isVSeeking() const;
int m_QueueLength;
boost::thread* m_pDemuxThread;
std::map<int, VideoMsgQueuePtr> m_PacketQs;
VideoDemuxerThread::CQueuePtr m_pDemuxCmdQ;
boost::thread* m_pVDecoderThread;
VideoDecoderThread::CQueuePtr m_pVCmdQ;
VideoMsgQueuePtr m_pVMsgQ;
boost::thread* m_pADecoderThread;
AudioDecoderThread::CQueuePtr m_pACmdQ;
AudioMsgQueuePtr m_pAMsgQ;
AudioMsgQueuePtr m_pAStatusQ;
bool m_bUseStreamFPS;
float m_FPS;
int m_NumSeeksSent;
int m_NumVSeeksDone;
int m_NumASeeksDone;
bool m_bWasVSeeking;
bool m_bWasSeeking;
bool m_bAudioEOF;
bool m_bVideoEOF;
float m_LastVideoFrameTime;
float m_CurVideoFrameTime;
float m_LastAudioFrameTime;
};
typedef boost::shared_ptr<AsyncVideoDecoder> AsyncVideoDecoderPtr;
}
#endif
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