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/usr/include/liveMedia/ByteStreamMemoryBufferSource.hh is in liblivemedia-dev 2016.02.09-1.

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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
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.
// A class for streaming data from a (static) memory buffer, as if it were a file.
// C++ header

#ifndef _BYTE_STREAM_MEMORY_BUFFER_SOURCE_HH
#define _BYTE_STREAM_MEMORY_BUFFER_SOURCE_HH

#ifndef _FRAMED_SOURCE_HH
#include "FramedSource.hh"
#endif

class ByteStreamMemoryBufferSource: public FramedSource {
public:
  static ByteStreamMemoryBufferSource* createNew(UsageEnvironment& env,
						 u_int8_t* buffer, u_int64_t bufferSize,
						 Boolean deleteBufferOnClose = True,
						 unsigned preferredFrameSize = 0,
						 unsigned playTimePerFrame = 0);
      // "preferredFrameSize" == 0 means 'no preference'
      // "playTimePerFrame" is in microseconds

  u_int64_t bufferSize() const { return fBufferSize; }

  void seekToByteAbsolute(u_int64_t byteNumber, u_int64_t numBytesToStream = 0);
    // if "numBytesToStream" is >0, then we limit the stream to that number of bytes, before treating it as EOF
  void seekToByteRelative(int64_t offset, u_int64_t numBytesToStream = 0);

protected:
  ByteStreamMemoryBufferSource(UsageEnvironment& env,
			       u_int8_t* buffer, u_int64_t bufferSize,
			       Boolean deleteBufferOnClose,
			       unsigned preferredFrameSize,
			       unsigned playTimePerFrame);
	// called only by createNew()

  virtual ~ByteStreamMemoryBufferSource();

private:
  // redefined virtual functions:
  virtual void doGetNextFrame();

private:
  u_int8_t* fBuffer;
  u_int64_t fBufferSize;
  u_int64_t fCurIndex;
  Boolean fDeleteBufferOnClose;
  unsigned fPreferredFrameSize;
  unsigned fPlayTimePerFrame;
  unsigned fLastPlayTime;
  Boolean fLimitNumBytesToStream;
  u_int64_t fNumBytesToStream; // used iff "fLimitNumBytesToStream" is True
};

#endif