DVVideoRTPSink.hh

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/**********
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 3 of the License, or (at your
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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.,
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**********/
// "liveMedia"
// Copyright (c) 1996-2022 Live Networks, Inc.  All rights reserved.
// RTP sink for DV video (RFC 3189)
// (Thanks to Ben Hutchings for prototyping this.)
// C++ header
 
#ifndef _DV_VIDEO_RTP_SINK_HH
#define _DV_VIDEO_RTP_SINK_HH
 
#ifndef _VIDEO_RTP_SINK_HH
#include "VideoRTPSink.hh"
#endif
#ifndef _DV_VIDEO_STREAM_FRAMER_HH
#include "DVVideoStreamFramer.hh"
#endif
 
class DVVideoRTPSink: public VideoRTPSink {
public:
  static DVVideoRTPSink* createNew(UsageEnvironment& env, Groupsock* RTPgs, unsigned char rtpPayloadFormat);
  char const* auxSDPLineFromFramer(DVVideoStreamFramer* framerSource);
 
protected:
  DVVideoRTPSink(UsageEnvironment& env, Groupsock* RTPgs, unsigned char rtpPayloadFormat);
        // called only by createNew()
 
  virtual ~DVVideoRTPSink();
 
private: // redefined virtual functions:
  virtual Boolean sourceIsCompatibleWithUs(MediaSource& source);
  virtual void doSpecialFrameHandling(unsigned fragmentationOffset,
                                      unsigned char* frameStart,
                                      unsigned numBytesInFrame,
                                      struct timeval framePresentationTime,
                                      unsigned numRemainingBytes);
  virtual unsigned computeOverflowForNewFrame(unsigned newFrameSize) const;
  virtual char const* auxSDPLine();
 
private:
  char* fFmtpSDPLine;
};
 
#endif