MPEG1or2VideoStreamFramer.hh

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FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
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// "liveMedia"
// Copyright (c) 1996-2024 Live Networks, Inc.  All rights reserved.
// A filter that breaks up an MPEG 1 or 2 video elementary stream into
//   frames for: Video_Sequence_Header, GOP_Header, Picture_Header
// C++ header
 
#ifndef _MPEG_1OR2_VIDEO_STREAM_FRAMER_HH
#define _MPEG_1OR2_VIDEO_STREAM_FRAMER_HH
 
#ifndef _MPEG_VIDEO_STREAM_FRAMER_HH
#include "MPEGVideoStreamFramer.hh"
#endif
 
class MPEG1or2VideoStreamFramer: public MPEGVideoStreamFramer {
public:
  static MPEG1or2VideoStreamFramer*
      createNew(UsageEnvironment& env, FramedSource* inputSource,
                Boolean iFramesOnly = False,
                double vshPeriod = 5.0
                /* how often (in seconds) to inject a Video_Sequence_Header,
                   if one doesn't already appear in the stream */);
 
protected:
  MPEG1or2VideoStreamFramer(UsageEnvironment& env,
                            FramedSource* inputSource,
                            Boolean iFramesOnly, double vshPeriod,
                            Boolean createParser = True);
      // called only by createNew(), or by subclass constructors
  virtual ~MPEG1or2VideoStreamFramer();
 
private:
  // redefined virtual functions:
  virtual Boolean isMPEG1or2VideoStreamFramer() const;
 
private:
  double getCurrentPTS() const;
 
  friend class MPEG1or2VideoStreamParser; // hack
};
 
#endif