source: SHVCSoftware/branches/SHM-dev/source/Lib/TLibEncoder/SyntaxElementWriter.cpp

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/** \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 TChar *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 TChar *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 TChar *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 TChar *pSymbolName)
{
  xWriteFlag(value);
  if( g_HLSTraceEnable )
  {
    fprintf( g_hTrace, "%8lld  ", g_nSymbolCounter++ );
    fprintf( g_hTrace, "%-50s u(1)  : %d\n", pSymbolName, value );
  }
}

#if Q0096_OVERLAY_SEI
Void  SyntaxElementWriter::xWriteStringTr( UChar* value, UInt length, const TChar *pSymbolName)
{
  xWriteString(value, length);
  if( g_HLSTraceEnable )
  {
    fprintf( g_hTrace, "%8lld  ", g_nSymbolCounter++ );
    fprintf( g_hTrace, "%-50s st(v=%d)  : %s\n", pSymbolName, length, value ); 
  }
}
#endif

#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 );
}

Void SyntaxElementWriter::xWriteRbspTrailingBits()
{
  WRITE_FLAG( 1, "rbsp_stop_one_bit");
  Int cnt = 0;
  while (m_pcBitIf->getNumBitsUntilByteAligned())
  {
    WRITE_FLAG( 0, "rbsp_alignment_zero_bit");
    cnt++;
  }
  assert(cnt<8);
}

#if Q0096_OVERLAY_SEI
Void  SyntaxElementWriter::xWriteString( UChar* sCode, UInt uiLength)
{
  assert(m_pcBitIf->getNumberOfWrittenBits() % 8 == 0 );
  for (Int i=0 ; i<uiLength; i++)
  {
    m_pcBitIf->write( sCode[i], 8 );
  }
  m_pcBitIf->write( 0, 8 ); //zero-termination byte
}
#endif

//! \}