mirror of https://git.ffmpeg.org/ffmpeg.git
Fix loop filter with CAVLC 8x8dct.
Fixes at least: FRExt/HPCV_BRCM_A.264 FRExt/HVLCFI0_Sony_B.264 FRExt/HVLCPFF0_Sony_B.264 H264_artifacts_motion.h264 Originally committed as revision 14373 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -4897,8 +4897,10 @@ decode_intra_mb:
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h->cbp = cbp;
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if(dct8x8_allowed && (cbp&15) && !IS_INTRA(mb_type)){
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if(get_bits1(&s->gb))
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if(get_bits1(&s->gb)){
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mb_type |= MB_TYPE_8x8DCT;
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h->cbp_table[mb_xy]= cbp;
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}
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}
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s->current_picture.mb_type[mb_xy]= mb_type;
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@ -6577,6 +6579,43 @@ static void filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8
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}
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}
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// CAVLC 8x8dct requires NNZ values for residual decoding that differ from what the loop filter needs
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if(!h->pps.cabac && h->pps.transform_8x8_mode){
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int top_type, left_type[2];
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top_type = s->current_picture.mb_type[h->top_mb_xy] ;
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left_type[0] = s->current_picture.mb_type[h->left_mb_xy[0]];
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left_type[1] = s->current_picture.mb_type[h->left_mb_xy[1]];
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if(IS_8x8DCT(top_type)){
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h->non_zero_count_cache[4+8*0]=
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h->non_zero_count_cache[5+8*0]= h->cbp_table[h->top_mb_xy] & 4;
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h->non_zero_count_cache[6+8*0]=
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h->non_zero_count_cache[7+8*0]= h->cbp_table[h->top_mb_xy] & 8;
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}
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if(IS_8x8DCT(left_type[0])){
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h->non_zero_count_cache[3+8*1]=
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h->non_zero_count_cache[3+8*2]= h->cbp_table[h->left_mb_xy[0]]&2; //FIXME check MBAFF
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}
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if(IS_8x8DCT(left_type[1])){
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h->non_zero_count_cache[3+8*3]=
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h->non_zero_count_cache[3+8*4]= h->cbp_table[h->left_mb_xy[1]]&8; //FIXME check MBAFF
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}
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if(IS_8x8DCT(mb_type)){
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h->non_zero_count_cache[scan8[0 ]]= h->non_zero_count_cache[scan8[1 ]]=
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h->non_zero_count_cache[scan8[2 ]]= h->non_zero_count_cache[scan8[3 ]]= h->cbp_table[mb_xy] & 1;
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h->non_zero_count_cache[scan8[0+ 4]]= h->non_zero_count_cache[scan8[1+ 4]]=
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h->non_zero_count_cache[scan8[2+ 4]]= h->non_zero_count_cache[scan8[3+ 4]]= h->cbp_table[mb_xy] & 2;
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h->non_zero_count_cache[scan8[0+ 8]]= h->non_zero_count_cache[scan8[1+ 8]]=
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h->non_zero_count_cache[scan8[2+ 8]]= h->non_zero_count_cache[scan8[3+ 8]]= h->cbp_table[mb_xy] & 4;
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h->non_zero_count_cache[scan8[0+12]]= h->non_zero_count_cache[scan8[1+12]]=
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h->non_zero_count_cache[scan8[2+12]]= h->non_zero_count_cache[scan8[3+12]]= h->cbp_table[mb_xy] & 8;
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}
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}
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if (FRAME_MBAFF
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// left mb is in picture
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&& h->slice_table[mb_xy-1] != 255
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