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| author | Yogender Kumar Gupta <yogender.gupta@gmail.com> | 2014-03-18 16:01:15 +0530 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-03-18 20:37:26 +0100 |
| commit | 6f7ca1f55be1270e0d7c33409de4473e4dd00add (patch) | |
| tree | ebf109047e5c102406ab235df86eb980461a9dd2 /libavcodec/h264pred_template.c | |
| parent | 7ab315ec69018dd38fb851788053a74c5763d26e (diff) | |
| download | ffmpeg-6f7ca1f55be1270e0d7c33409de4473e4dd00add.tar.gz | |
avcodec/h264: fix Lossless Decoding (Profile 244) for 8x8 Intra Prediction
This is limited to the case where x264_build = -1, to not break x264 decoding
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/h264pred_template.c')
| -rw-r--r-- | libavcodec/h264pred_template.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/libavcodec/h264pred_template.c b/libavcodec/h264pred_template.c index fd1515b36d..3d67dd40ae 100644 --- a/libavcodec/h264pred_template.c +++ b/libavcodec/h264pred_template.c @@ -1124,6 +1124,83 @@ static void FUNCC(pred8x8l_horizontal_up)(uint8_t *_src, int has_topleft, SRC(5,6)=SRC(5,7)=SRC(6,4)=SRC(6,5)=SRC(6,6)= SRC(6,7)=SRC(7,4)=SRC(7,5)=SRC(7,6)=SRC(7,7)= l7; } + +static void FUNCC(pred8x8l_vertical_filter_add)(uint8_t *_src, int16_t *_block, int has_topleft, + int has_topright, ptrdiff_t stride) +{ + int i; + pixel *src = (pixel*)_src; + const dctcoef *block = (const dctcoef*)_block; + pixel pix[8]; + + stride >>= sizeof(pixel)-1; + + PREDICT_8x8_LOAD_TOP; + + pix[0] = t0; + pix[1] = t1; + pix[2] = t2; + pix[3] = t3; + pix[4] = t4; + pix[5] = t5; + pix[6] = t6; + pix[7] = t7; + + for(i=0; i<8; i++){ + pixel v = pix[i]; + src[0*stride]= v += block[0]; + src[1*stride]= v += block[8]; + src[2*stride]= v += block[16]; + src[3*stride]= v += block[24]; + src[4*stride]= v += block[32]; + src[5*stride]= v += block[40]; + src[6*stride]= v += block[48]; + src[7*stride]= v + block[56]; + src++; + block++; + } + + memset(_block, 0, sizeof(dctcoef) * 64); +} + +static void FUNCC(pred8x8l_horizontal_filter_add)(uint8_t *_src, int16_t *_block, int has_topleft, + int has_topright, ptrdiff_t stride) +{ + int i; + pixel *src = (pixel*)_src; + const dctcoef *block = (const dctcoef*)_block; + pixel pix[8]; + + stride >>= sizeof(pixel)-1; + + PREDICT_8x8_LOAD_LEFT; + + pix[0] = l0; + pix[1] = l1; + pix[2] = l2; + pix[3] = l3; + pix[4] = l4; + pix[5] = l5; + pix[6] = l6; + pix[7] = l7; + + for(i=0; i<8; i++){ + pixel v = pix[i]; + src[0]= v += block[0]; + src[1]= v += block[1]; + src[2]= v += block[2]; + src[3]= v += block[3]; + src[4]= v += block[4]; + src[5]= v += block[5]; + src[6]= v += block[6]; + src[7]= v + block[7]; + src+= stride; + block+= 8; + } + + memset(_block, 0, sizeof(dctcoef) * 64); +} + #undef PREDICT_8x8_LOAD_LEFT #undef PREDICT_8x8_LOAD_TOP #undef PREDICT_8x8_LOAD_TOPLEFT |