liveMedia/include/H263plusVideoRTPSource.hh

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/**********
This library is free software; you can redistribute it and/or modify it under
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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) 1996-2008 Live Networks, Inc.  All rights reserved.
// H.263+ Video RTP Sources
// C++ header

#ifndef _H263_PLUS_VIDEO_RTP_SOURCE_HH
#define _H263_PLUS_VIDEO_RTP_SOURCE_HH

#ifndef _MULTI_FRAMED_RTP_SOURCE_HH
#include "MultiFramedRTPSource.hh"
#endif

#define SPECIAL_HEADER_BUFFER_SIZE 1000

class H263plusVideoRTPSource: public MultiFramedRTPSource {
public:
  static H263plusVideoRTPSource*
  createNew(UsageEnvironment& env, Groupsock* RTPgs,
            unsigned char rtpPayloadFormat,
            unsigned rtpTimestampFrequency = 90000);

  // A data structure that stores copies of the special header bytes
  // from the most recent frame's RTP packets:
  unsigned char fNumSpecialHeaders;
  unsigned fSpecialHeaderBytesLength;
  unsigned char fSpecialHeaderBytes[SPECIAL_HEADER_BUFFER_SIZE];
  unsigned fPacketSizes[256];

protected:
  virtual ~H263plusVideoRTPSource();

private:
  H263plusVideoRTPSource(UsageEnvironment& env, Groupsock* RTPgs,
                         unsigned char rtpPayloadFormat,
                         unsigned rtpTimestampFrequency);
      // called only by createNew()

private:
  // redefined virtual functions:
  virtual Boolean processSpecialHeader(BufferedPacket* packet,
                                       unsigned& resultSpecialHeaderSize);
  virtual char const* MIMEtype() const;
};

#endif

---