H263plusVideoRTPSource.hh

Go to the documentation of this file.

/**********
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
option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
 
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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
**********/
// "liveMedia"
// Copyright (c) 1996-2024 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