/*-----------------------------------------------------------------

GEM - Graphics Environment for Multimedia

Load an digital video (like AVI, Mpeg, Quicktime) into a pix block (Linux)

Copyright (c) 1997-1999 Mark Danks. mark@danks.org
Copyright (c) Günther Geiger. geiger@epy.co.at
Copyright (c) 2001-2011 IOhannes m zmölnig. forum::für::umläute. IEM. zmoelnig@iem.at
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution.


-----------------------------------------------------------------*/

#ifndef _INCLUDE_GEMPLUGIN__FILMFFMPEG_FILMFFMPEG_H_
#define _INCLUDE_GEMPLUGIN__FILMFFMPEG_FILMFFMPEG_H_
#include "plugins/film.h"
#include "Gem/Image.h"


# ifdef __cplusplus
extern "C" {
# endif
 
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>


#include <libswscale/swscale.h>

#include <libavutil/imgutils.h> 

# ifdef __cplusplus
}
# endif

/*-----------------------------------------------------------------
  -------------------------------------------------------------------
  CLASS
  filmFFMPEG

  Loads in a film

  KEYWORDS
  pix

  DESCRIPTION

  -----------------------------------------------------------------*/
namespace gem
{
namespace plugins
{
class GEM_EXPORT filmFFMPEG : public film
{
public:

  //////////
  // Constructor
  filmFFMPEG(void);

  //////////
  // open a movie up
  virtual bool open(const std::string&filename, const gem::Properties&);

  virtual void close(void);

  //////////
  // get the next frame
  virtual pixBlock* getFrame(void);

  //////////
  // set the next frame to read;
  virtual errCode changeImage(int imgNum, int trackNum = -1);

  virtual bool enumProperties(gem::Properties&readprops,
                              gem::Properties&writeprops);

  virtual void getProperties(gem::Properties&props);
  virtual void setProperties(gem::Properties&props);
  

  virtual bool isThreadable(void);
  
 
  virtual int64_t frameToPts(int frame) const;  
  virtual int decode_packet(AVPacket *m_packet,
								   AVCodecContext *m_codecContext,
								   AVFrame *m_avframe); 

  //-----------------------------------
  pixBlock m_image;
  unsigned int  m_wantedFormat; // format requested by the user
  double m_fps;  // the frame-rate
  int m_fps_num, m_fps_denum;
  int m_width,m_height;
  unsigned int m_numFrames, m_numTracks;
  int             m_avframeBytes;
  uint8_t         *m_avframeBuffer;
  int ret, video_stream;
   
 
  enum AVPixelFormat src_pix_fmt, dst_pix_fmt;

  struct SwsContext *sws_ctx;  
  
  AVFormatContext *m_formatContext;
  AVStream *m_in_stream;
  AVCodecParameters *m_codecParam;
  
  AVCodec *m_codec;
  AVCodecContext *m_codecContext;
  AVFrame *m_avframe;
  AVPacket *m_packet;
  AVFrame *m_finalFrame;

  
  unsigned char *m_rawdata;
  
  int how_many_packets_to_process,response;
};
};
};

#endif  // for header file