AMRAudioSource.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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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.
 
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// "liveMedia"
// Copyright (c) 1996-2021 Live Networks, Inc.  All rights reserved.
// A source object for AMR audio sources
// C++ header
 
#ifndef _AMR_AUDIO_SOURCE_HH
#define _AMR_AUDIO_SOURCE_HH
 
#ifndef _FRAMED_SOURCE_HH
#include "FramedSource.hh"
#endif
 
class AMRAudioSource: public FramedSource {
public:
  Boolean isWideband() const { return fIsWideband; }
  unsigned numChannels() const { return fNumChannels; }
 
  u_int8_t lastFrameHeader() const { return fLastFrameHeader; }
  // The frame header for the most recently read frame (RFC 4867, sec. 5.3)
 
protected:
  AMRAudioSource(UsageEnvironment& env, Boolean isWideband, unsigned numChannels);
        // virtual base class
  virtual ~AMRAudioSource();
 
private:
  // redefined virtual functions:
  virtual char const* MIMEtype() const;
  virtual Boolean isAMRAudioSource() const;
 
protected:
  Boolean fIsWideband;
  unsigned fNumChannels;
  u_int8_t fLastFrameHeader;
};
 
#endif