text: /**********
  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 2.1 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) 1996-2016 Live Networks, Inc.  All rights reserved.
  // MPEG4-GENERIC ("audio", "video", or "application") RTP stream sources
  // C++ header
  
  #ifndef _MPEG4_GENERIC_RTP_SOURCE_HH
  #define _MPEG4_GENERIC_RTP_SOURCE_HH
  
  #ifndef _MULTI_FRAMED_RTP_SOURCE_HH
  #include "MultiFramedRTPSource.hh"
  #endif
  
  class MPEG4GenericRTPSource: public MultiFramedRTPSource {
  public:
    static MPEG4GenericRTPSource*
    createNew(UsageEnvironment& env, Groupsock* RTPgs,
  	    unsigned char rtpPayloadFormat,
  	    unsigned rtpTimestampFrequency,
  	    char const* mediumName,
  	    char const* mode, unsigned sizeLength, unsigned indexLength,
  	    unsigned indexDeltaLength
  	    // add other parameters later
  	    );
    // mediumName is "audio", "video", or "application"
    // it *cannot* be NULL
  
  protected:
    virtual ~MPEG4GenericRTPSource();
  
  private:
    MPEG4GenericRTPSource(UsageEnvironment& env, Groupsock* RTPgs,
  			unsigned char rtpPayloadFormat,
  			unsigned rtpTimestampFrequency,
  			char const* mediumName,
  			char const* mode,
  			unsigned sizeLength, unsigned indexLength,
  			unsigned indexDeltaLength
  			);
        // called only by createNew()
  
  private:
    // redefined virtual functions:
    virtual Boolean processSpecialHeader(BufferedPacket* packet,
                                         unsigned& resultSpecialHeaderSize);
    virtual char const* MIMEtype() const;
  
  private:
    char* fMIMEType;
  
    char* fMode;
    unsigned fSizeLength, fIndexLength, fIndexDeltaLength;
    unsigned fNumAUHeaders; // in the most recently read packet
    unsigned fNextAUHeader; // index of the next AU Header to read
    struct AUHeader* fAUHeaders;
  
    friend class MPEG4GenericBufferedPacket;
  };
  
  
  
  // A function that looks up the sampling frequency from an
  // "AudioSpecificConfig" string.  (0 means 'unknown')
  unsigned samplingFrequencyFromAudioSpecificConfig(char const* configStr);
  
  #endif
  