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Fix big endian and little endian read and write buffer

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jfmcarreira
2016-04-04 00:44:25 +01:00
parent 55ae2a0e7f
commit 4053b47297
2 changed files with 31 additions and 19 deletions
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lib/PlaYUVerFrame.cpp
+28 -19
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@@ -404,19 +404,18 @@ Void PlaYUVerFrame::frameFromBuffer( Byte *Buff )
Byte* pTmpBuff;
Pel* pPel;
UInt bytesPixel = ( m_uiBitsPel - 1 ) / 8 + 1;
UInt shiftInput, shiftOutput;
Int ratioH, ratioW, step;
UInt i, ch, b;
UInt i, ch;
Int startByte = 0;
Int endByte = bytesPixel;
Int incByte = 1;
Int b;
if( m_iEndianness == 1 )
if( m_iEndianness == 0 )
{
shiftInput = 8;
shiftOutput = 0;
}
else
{
shiftInput = 0;
shiftOutput = 8;
startByte = bytesPixel - 1;
endByte = -1;
incByte = -1;
}
ppBuff[0] = Buff;
@@ -431,18 +430,18 @@ Void PlaYUVerFrame::frameFromBuffer( Byte *Buff )
{
ratioW = ch > 0 ? m_pcPelFormat->log2ChromaWidth : 0;
ratioH = ch > 0 ? m_pcPelFormat->log2ChromaHeight : 0;
step = m_pcPelFormat->comp[ch].step_minus1 + 1;
step = m_pcPelFormat->comp[ch].step_minus1;
pPel = m_pppcInputPel[ch][0];
pTmpBuff = ppBuff[m_pcPelFormat->comp[ch].plane] + ( m_pcPelFormat->comp[ch].offset_plus1 - 1 );
for( i = 0; i < CHROMASHIFT( m_uiHeight, ratioH ) * CHROMASHIFT( m_uiWidth, ratioW ); i++ )
{
*pPel = *pTmpBuff;
for( b = 1; b < bytesPixel; b++ )
*pPel = 0;
for( b = startByte; b != endByte; b += incByte )
{
*pPel += *pTmpBuff << ( b * 8 );
pTmpBuff++;
*pPel = ( *pPel << shiftOutput ) + ( *pTmpBuff << shiftInput );
}
pPel++;
pTmpBuff += step;
@@ -459,7 +458,18 @@ Void PlaYUVerFrame::frameToBuffer( Byte *output_buffer )
Byte* pTmpBuff;
Pel* pTmpPel;
Int ratioH, ratioW, step;
UInt i, ch, b;
UInt i, ch;
Int startByte = 0;
Int endByte = bytesPixel;
Int incByte = 1;
Int b;
if( m_iEndianness == 0 )
{
startByte = bytesPixel - 1;
endByte = -1;
incByte = -1;
}
ppBuff[0] = output_buffer;
for( Int i = 1; i < MAX_NUMBER_PLANES; i++ )
@@ -473,18 +483,17 @@ Void PlaYUVerFrame::frameToBuffer( Byte *output_buffer )
{
ratioW = ch > 0 ? m_pcPelFormat->log2ChromaWidth : 0;
ratioH = ch > 0 ? m_pcPelFormat->log2ChromaHeight : 0;
step = m_pcPelFormat->comp[ch].step_minus1 + 1;
step = m_pcPelFormat->comp[ch].step_minus1;
pTmpPel = m_pppcInputPel[ch][0];
pTmpBuff = ppBuff[m_pcPelFormat->comp[ch].plane];
for( i = 0; i < CHROMASHIFT( m_uiHeight, ratioH ) * CHROMASHIFT( m_uiWidth, ratioW ); i++ )
{
*pTmpBuff = ( *pTmpPel & 0x00FF );
for( b = 1; b < bytesPixel; b++ )
for( b = startByte; b != endByte; b += incByte )
{
*pTmpBuff = *pTmpPel >> ( 8 * b );
pTmpBuff++;
*pTmpBuff = ( *pTmpPel >> ( 8 * b ) ) & 0x00FF;
}
pTmpPel++;
pTmpBuff += step;