AC3AudioRTPSink.hh

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/**********
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
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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
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// "liveMedia"
// Copyright (c) 1996-2024 Live Networks, Inc.  All rights reserved.
// RTP sink for AC3 audio
// C++ header
 
#ifndef _AC3_AUDIO_RTP_SINK_HH
#define _AC3_AUDIO_RTP_SINK_HH
 
#ifndef _AUDIO_RTP_SINK_HH
#include "AudioRTPSink.hh"
#endif
 
class AC3AudioRTPSink: public AudioRTPSink {
public:
  static AC3AudioRTPSink* createNew(UsageEnvironment& env,
                                    Groupsock* RTPgs,
                                    u_int8_t rtpPayloadFormat,
                                    u_int32_t rtpTimestampFrequency);
 
protected:
  AC3AudioRTPSink(UsageEnvironment& env, Groupsock* RTPgs,
                  u_int8_t rtpPayloadFormat,
                  u_int32_t rtpTimestampFrequency);
        // called only by createNew()
 
  virtual ~AC3AudioRTPSink();
 
private: // redefined virtual functions:
  virtual Boolean frameCanAppearAfterPacketStart(unsigned char const* frameStart,
                                                 unsigned numBytesInFrame) const;
  virtual void doSpecialFrameHandling(unsigned fragmentationOffset,
                                      unsigned char* frameStart,
                                      unsigned numBytesInFrame,
                                      struct timeval framePresentationTime,
                                      unsigned numRemainingBytes);
  virtual unsigned specialHeaderSize() const;
 
private:
  unsigned char fTotNumFragmentsUsed; // used only if a frame gets fragmented across multiple packets
};
 
#endif