SyntaxElementWriter.h

Go to the documentation of this file.

/* 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) 2010-2017, ITU/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 ITU/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.
 */

#ifndef __SYNTAXELEMENTWRITER__
#define __SYNTAXELEMENTWRITER__

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "TLibCommon/CommonDef.h"
#include "TLibCommon/TComBitStream.h"
#include "TLibCommon/TComRom.h"


#if ENC_DEC_TRACE
#define WRITE_SCODE( value, length, name)   xWriteSCodeTr ( value, length, name )
#define WRITE_CODE( value, length, name)    xWriteCodeTr  ( value, length, name )
#define WRITE_UVLC( value,         name)    xWriteUvlcTr  ( value,         name )
#define WRITE_SVLC( value,         name)    xWriteSvlcTr  ( value,         name )
#define WRITE_FLAG( value,         name)    xWriteFlagTr  ( value,         name )

#else
#define WRITE_SCODE( value, length, name)    xWriteSCode ( value, length )
#define WRITE_CODE( value, length, name)     xWriteCode  ( value, length )
#define WRITE_UVLC( value,         name)     xWriteUvlc  ( value )
#define WRITE_SVLC( value,         name)     xWriteSvlc  ( value )
#define WRITE_FLAG( value,         name)     xWriteFlag  ( value )

#endif

class SyntaxElementWriter
{
protected:
  TComBitIf*    m_pcBitIf;

  SyntaxElementWriter()
  :m_pcBitIf(NULL)
  {};
  virtual ~SyntaxElementWriter() {};

  Void  setBitstream          ( TComBitIf* p )  { m_pcBitIf = p;  }

  Void  xWriteSCode           ( Int  iCode,  UInt uiLength );
  Void  xWriteCode            ( UInt uiCode, UInt uiLength );
  Void  xWriteUvlc            ( UInt uiCode );
  Void  xWriteSvlc            ( Int  iCode   );
  Void  xWriteFlag            ( UInt uiCode );
#if ENC_DEC_TRACE
  Void  xWriteSCodeTr         ( Int value,  UInt  length, const TChar *pSymbolName);
  Void  xWriteCodeTr          ( UInt value, UInt  length, const TChar *pSymbolName);
  Void  xWriteUvlcTr          ( UInt value,               const TChar *pSymbolName);
  Void  xWriteSvlcTr          ( Int  value,               const TChar *pSymbolName);
  Void  xWriteFlagTr          ( UInt value,               const TChar *pSymbolName);
#endif
  Void xWriteRbspTrailingBits();

  UInt  xConvertToUInt        ( Int iValue ) {  return ( iValue <= 0) ? -iValue<<1 : (iValue<<1)-1; }
};


#endif // !defined(__SYNTAXELEMENTWRITER__)