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) 1996-2011 Live Networks, Inc.  All rights reserved.
  // RTP sink for MPEG-4 audio, using LATM multiplexing (RFC 3016)
  // (Note that the initial 'size' field is assumed to be present at the start of
  //  each frame.)
  // C++ header
  
  #ifndef _MPEG4_LATM_AUDIO_RTP_SINK_HH
  #define _MPEG4_LATM_AUDIO_RTP_SINK_HH
  
  #ifndef _AUDIO_RTP_SINK_HH
  #include "AudioRTPSink.hh"
  #endif
  
  class MPEG4LATMAudioRTPSink: public AudioRTPSink {
  public:
    static MPEG4LATMAudioRTPSink* createNew(UsageEnvironment& env,
  					  Groupsock* RTPgs,
  					  unsigned char rtpPayloadFormat,
  					  u_int32_t rtpTimestampFrequency,
  					  char const* streamMuxConfigString,
  					  unsigned numChannels,
  					  Boolean allowMultipleFramesPerPacket = False);
  
  protected:
    MPEG4LATMAudioRTPSink(UsageEnvironment& env, Groupsock* RTPgs,
  			unsigned char rtpPayloadFormat,
  			u_int32_t rtpTimestampFrequency,
  			char const* streamMuxConfigString,
  			unsigned numChannels,
  			Boolean allowMultipleFramesPerPacket);
  	// called only by createNew()
  
    virtual ~MPEG4LATMAudioRTPSink();
  
  private: // redefined virtual functions:
    virtual void doSpecialFrameHandling(unsigned fragmentationOffset,
                                        unsigned char* frameStart,
                                        unsigned numBytesInFrame,
                                        struct timeval frameTimestamp,
                                        unsigned numRemainingBytes);
    virtual Boolean
    frameCanAppearAfterPacketStart(unsigned char const* frameStart,
  				 unsigned numBytesInFrame) const;
  
    virtual char const* auxSDPLine(); // for the "a=fmtp:" SDP line
  
  private:
    char const* fStreamMuxConfigString;
    char* fFmtpSDPLine;
    Boolean fAllowMultipleFramesPerPacket;
  };
  
  #endif
  