libbpg/jctvc/TLibEncoder/SyntaxElementWriter.cpp

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2015-01-16 12:46:18 +00:00
/* 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) 2010-2014, 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.
*/
/** \file SyntaxElementWriter.cpp
\brief CAVLC encoder class
*/
#include "TLibCommon/CommonDef.h"
#include "SyntaxElementWriter.h"
//! \ingroup TLibEncoder
//! \{
#if ENC_DEC_TRACE
Void SyntaxElementWriter::xWriteCodeTr (UInt value, UInt length, const Char *pSymbolName)
{
xWriteCode (value,length);
if( g_HLSTraceEnable )
{
fprintf( g_hTrace, "%8lld ", g_nSymbolCounter++ );
if( length<10 )
{
fprintf( g_hTrace, "%-50s u(%d) : %d\n", pSymbolName, length, value );
}
else
{
fprintf( g_hTrace, "%-50s u(%d) : %d\n", pSymbolName, length, value );
}
}
}
Void SyntaxElementWriter::xWriteUvlcTr (UInt value, const Char *pSymbolName)
{
xWriteUvlc (value);
if( g_HLSTraceEnable )
{
fprintf( g_hTrace, "%8lld ", g_nSymbolCounter++ );
fprintf( g_hTrace, "%-50s ue(v) : %d\n", pSymbolName, value );
}
}
Void SyntaxElementWriter::xWriteSvlcTr (Int value, const Char *pSymbolName)
{
xWriteSvlc(value);
if( g_HLSTraceEnable )
{
fprintf( g_hTrace, "%8lld ", g_nSymbolCounter++ );
fprintf( g_hTrace, "%-50s se(v) : %d\n", pSymbolName, value );
}
}
Void SyntaxElementWriter::xWriteFlagTr(UInt value, const Char *pSymbolName)
{
xWriteFlag(value);
if( g_HLSTraceEnable )
{
fprintf( g_hTrace, "%8lld ", g_nSymbolCounter++ );
fprintf( g_hTrace, "%-50s u(1) : %d\n", pSymbolName, value );
}
}
#endif
Void SyntaxElementWriter::xWriteCode ( UInt uiCode, UInt uiLength )
{
assert ( uiLength > 0 );
m_pcBitIf->write( uiCode, uiLength );
}
Void SyntaxElementWriter::xWriteUvlc ( UInt uiCode )
{
UInt uiLength = 1;
UInt uiTemp = ++uiCode;
assert ( uiTemp );
while( 1 != uiTemp )
{
uiTemp >>= 1;
uiLength += 2;
}
// Take care of cases where uiLength > 32
m_pcBitIf->write( 0, uiLength >> 1);
m_pcBitIf->write( uiCode, (uiLength+1) >> 1);
}
Void SyntaxElementWriter::xWriteSvlc ( Int iCode )
{
UInt uiCode;
uiCode = xConvertToUInt( iCode );
xWriteUvlc( uiCode );
}
Void SyntaxElementWriter::xWriteFlag( UInt uiCode )
{
m_pcBitIf->write( uiCode, 1 );
}
//! \}