source: 3DVCSoftware/branches/0.2-poznan-univ/source/Lib/TLibVideoIO/TVideoIOBits.h @ 483

/* The copyright in this software is being made available under the BSD
 * License, included below. This software may be subject to other third party
 * and contributor rights, including patent rights, and no such rights are
 * granted under this license.
 *
 * Copyright (c) 2010-2011, ISO/IEC
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *  * Neither the name of the ISO/IEC nor the names of its contributors may
 *    be used to endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */



/** \file     TVideoIOBits.h
    \brief    bitstream file I/O class (header)
*/

#ifndef __TVIDEOIOBITS__
#define __TVIDEOIOBITS__

#include <stdio.h>
#include <fstream>
#include <iostream>
#include "../TLibCommon/CommonDef.h"
#include "../TLibCommon/TComBitStream.h"

// ====================================================================================================================
// Class definition
// ====================================================================================================================

/// bitstream file I/O class
class TVideoIOBits
{
private:
  std::fstream   m_cHandle;                                      ///< file handle
  
public:
  TVideoIOBits()            {}
  virtual ~TVideoIOBits()   {}
  
  Void openBits   ( char* pchFile,  Bool bWriteMode );      ///< open or create file
  Void closeBits  ();                                       ///< close file
  
  Bool readBits   ( TComBitstream*& rpcBitstream    );      ///< read  one packet from file
  Void writeBits  ( TComBitstream*  pcBitstream     );      ///< write one packet to   file
  
};

/// bitstream file I/O class
class TVideoIOBitsStartCode
{
private:
  std::fstream   m_cHandle;                                      ///< file handle
  
public:
  TVideoIOBitsStartCode()            
  {
  }
  virtual ~TVideoIOBitsStartCode()   {}
  
  Void openBits   ( char* pchFile,  Bool bWriteMode );      ///< open or create file
  Void closeBits  ();                                       ///< close file
  
  Bool readBits   ( TComBitstream*& rpcBitstream    );      ///< read  one packet from file
  Void writeBits  ( TComBitstream*  pcBitstream     );      ///< write one packet to   file
  
  std::streampos   getFileLocation      ()                          { return m_cHandle.tellg();                           }
  Void             setFileLocation      (std::streampos uiLocation) { m_cHandle.seekg(uiLocation, std::ios_base::beg);    }
  Void             clear                ()                          { m_cHandle.clear();                                  }
  Bool             good                 ()                          { return m_cHandle.good();                            }

private:
  int xFindNextStartCode(UInt& ruiPacketSize, UChar* pucBuffer); ///< get packet size and number of startcode bytes and seeks to the packet's start position
  
};

#endif // __TVIDEOIOBITS__