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) 1996-2014 Live Networks, Inc.  All rights reserved.
  // RTP sink for AMR audio (RFC 4867)
  // C++ header
  
  #ifndef _AMR_AUDIO_RTP_SINK_HH
  #define _AMR_AUDIO_RTP_SINK_HH
  
  #ifndef _AUDIO_RTP_SINK_HH
  #include "AudioRTPSink.hh"
  #endif
  
  class AMRAudioRTPSink: public AudioRTPSink {
  public:
    static AMRAudioRTPSink* createNew(UsageEnvironment& env,
  				    Groupsock* RTPgs,
  				    unsigned char rtpPayloadFormat,
  				    Boolean sourceIsWideband = False,
  				    unsigned numChannelsInSource = 1);
  
    Boolean sourceIsWideband() const { return fSourceIsWideband; }
  
  protected:
    AMRAudioRTPSink(UsageEnvironment& env, Groupsock* RTPgs,
  		  unsigned char rtpPayloadFormat,
  		  Boolean sourceIsWideband, unsigned numChannelsInSource);
  	// called only by createNew()
  
    virtual ~AMRAudioRTPSink();
  
  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 Boolean
    frameCanAppearAfterPacketStart(unsigned char const* frameStart,
  				 unsigned numBytesInFrame) const;
  
    virtual unsigned specialHeaderSize() const;
    virtual char const* auxSDPLine();
  
  private:
    Boolean fSourceIsWideband;
    char* fFmtpSDPLine;
  };
  
  #endif
  