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h264dec: h264: 4:2:2 intra decoding

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Baptiste Coudurier 2011-08-15 00:39:55 +02:00 • committed by Michael Niedermayer
parent 9a33078b64
commit 231a6df9ea
23 changed files with 623 additions and 135 deletions
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9
libavcodec/h264data.h
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@ -80,7 +80,14 @@ static const uint8_t luma_dc_field_scan[16]={
static const uint8_t chroma_dc_scan[4]={
(0+0*2)*16, (1+0*2)*16,
(0+1*2)*16, (1+1*2)*16, //FIXME
(0+1*2)*16, (1+1*2)*16,
};
static const uint8_t chroma422_dc_scan[8]={
(0+0*2)*16, (0+1*2)*16,
(1+0*2)*16, (0+2*2)*16,
(0+3*2)*16, (1+1*2)*16,
(1+2*2)*16, (1+3*2)*16,
};
// zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)]