libavcodec/h264_cabac.c:1548: error: Buffer Overrun L1
  Offset: 9 Size: 1.

libavcodec/h264_cabac.c:1451:17: <Length trace>
1449.             if( IS_DIRECT(h->sub_mb_type[0] | h->sub_mb_type[1] |
1450.                           h->sub_mb_type[2] | h->sub_mb_type[3]) ) {
1451.                 ff_h264_pred_direct_motion(h, &mb_type);
                      ^
1452.                 h->ref_cache[0][scan8[4]] =
1453.                 h->ref_cache[1][scan8[4]] =

libavcodec/h264_cabac.c:1451:17: Call
1449.             if( IS_DIRECT(h->sub_mb_type[0] | h->sub_mb_type[1] |
1450.                           h->sub_mb_type[2] | h->sub_mb_type[3]) ) {
1451.                 ff_h264_pred_direct_motion(h, &mb_type);
                      ^
1452.                 h->ref_cache[0][scan8[4]] =
1453.                 h->ref_cache[1][scan8[4]] =

libavcodec/h264_direct.c:137:1: Parameter `h->mv_cache[*][*][*]`
  135. }
  136. 
  137. void ff_h264_pred_direct_motion(H264Context * const h, int *mb_type){
       ^
  138.     MpegEncContext * const s = &h->s;
  139.     int b8_stride = h->b8_stride;

libavcodec/h264_cabac.c:1546:21: Assignment
1544.                     }
1545.                 }else{
1546.                     uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0];
                          ^
1547.                     uint32_t *pd= (uint32_t *)&h->mvd_cache[list][ scan8[4*i] ][0];
1548.                     p[0] = p[1] = p[8] = p[9] = 0;

libavcodec/h264_cabac.c:1548:42: Array access: Offset: 9 Size: 1
1546.                     uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0];
1547.                     uint32_t *pd= (uint32_t *)&h->mvd_cache[list][ scan8[4*i] ][0];
1548.                     p[0] = p[1] = p[8] = p[9] = 0;
                                               ^
1549.                     pd[0]= pd[1]= pd[8]= pd[9]= 0;
1550.                 }

int ff_h264_decode_mb_cabac(H264Context *h) {
    MpegEncContext * const s = &h->s;
    int mb_xy;
    int mb_type, partition_count, cbp = 0;
    int dct8x8_allowed= h->pps.transform_8x8_mode;
    mb_xy = h->mb_xy = s->mb_x + s->mb_y*s->mb_stride;
    tprintf(s->avctx, "pic:%d mb:%d/%d\n", h->frame_num, s->mb_x, s->mb_y);
    if( h->slice_type_nos != FF_I_TYPE ) {
        int skip;
        if( FRAME_MBAFF && s->mb_x==0 && (s->mb_y&1)==0 )
            predict_field_decoding_flag(h);
        if( FRAME_MBAFF && (s->mb_y&1)==1 && h->prev_mb_skipped )
            skip = h->next_mb_skipped;
        else
            skip = decode_cabac_mb_skip( h, s->mb_x, s->mb_y );
        if( skip ) {
            if( FRAME_MBAFF && (s->mb_y&1)==0 ){
                s->current_picture.mb_type[mb_xy] = MB_TYPE_SKIP;
                h->next_mb_skipped = decode_cabac_mb_skip( h, s->mb_x, s->mb_y+1 );
                if(!h->next_mb_skipped)
                    h->mb_mbaff = h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h);
            }
            decode_mb_skip(h);
            h->cbp_table[mb_xy] = 0;
            h->chroma_pred_mode_table[mb_xy] = 0;
            h->last_qscale_diff = 0;
            return 0;
        }
    }
    if(FRAME_MBAFF){
        if( (s->mb_y&1) == 0 )
            h->mb_mbaff =
            h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h);
    }
    h->prev_mb_skipped = 0;
    compute_mb_neighbors(h);
    if( h->slice_type_nos == FF_B_TYPE ) {
        mb_type = decode_cabac_mb_type_b( h );
        if( mb_type < 23 ){
            partition_count= b_mb_type_info[mb_type].partition_count;
            mb_type=         b_mb_type_info[mb_type].type;
        }else{
            mb_type -= 23;
            goto decode_intra_mb;
        }
    } else if( h->slice_type_nos == FF_P_TYPE ) {
        if( get_cabac_noinline( &h->cabac, &h->cabac_state[14] ) == 0 ) {
            if( get_cabac_noinline( &h->cabac, &h->cabac_state[15] ) == 0 ) {
                mb_type= 3 * get_cabac_noinline( &h->cabac, &h->cabac_state[16] );
            } else {
                mb_type= 2 - get_cabac_noinline( &h->cabac, &h->cabac_state[17] );
            }
            partition_count= p_mb_type_info[mb_type].partition_count;
            mb_type=         p_mb_type_info[mb_type].type;
        } else {
            mb_type= decode_cabac_intra_mb_type(h, 17, 0);
            goto decode_intra_mb;
        }
    } else {
        mb_type= decode_cabac_intra_mb_type(h, 3, 1);
        if(h->slice_type == FF_SI_TYPE && mb_type)
            mb_type--;
        assert(h->slice_type_nos == FF_I_TYPE);
decode_intra_mb:
        partition_count = 0;
        cbp= i_mb_type_info[mb_type].cbp;
        h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;
        mb_type= i_mb_type_info[mb_type].type;
    }
    if(MB_FIELD)
        mb_type |= MB_TYPE_INTERLACED;
    h->slice_table[ mb_xy ]= h->slice_num;
    if(IS_INTRA_PCM(mb_type)) {
        const uint8_t *ptr;
        ptr= h->cabac.bytestream;
        if(h->cabac.low&0x1) ptr--;
        if(CABAC_BITS==16){
            if(h->cabac.low&0x1FF) ptr--;
        }
        memcpy(h->mb, ptr, 256); ptr+=256;
        if(CHROMA){
            memcpy(h->mb+128, ptr, 128); ptr+=128;
        }
        ff_init_cabac_decoder(&h->cabac, ptr, h->cabac.bytestream_end - ptr);
        h->cbp_table[mb_xy] = 0x1ef;
        h->chroma_pred_mode_table[mb_xy] = 0;
        s->current_picture.qscale_table[mb_xy]= 0;
        memset(h->non_zero_count[mb_xy], 16, 32);
        s->current_picture.mb_type[mb_xy]= mb_type;
        h->last_qscale_diff = 0;
        return 0;
    }
    if(MB_MBAFF){
        h->ref_count[0] <<= 1;
        h->ref_count[1] <<= 1;
    }
    fill_decode_caches(h, mb_type);
    if( IS_INTRA( mb_type ) ) {
        int i, pred_mode;
        if( IS_INTRA4x4( mb_type ) ) {
            if( dct8x8_allowed && decode_cabac_mb_transform_size( h ) ) {
                mb_type |= MB_TYPE_8x8DCT;
                for( i = 0; i < 16; i+=4 ) {
                    int pred = pred_intra_mode( h, i );
                    int mode = decode_cabac_mb_intra4x4_pred_mode( h, pred );
                    fill_rectangle( &h->intra4x4_pred_mode_cache[ scan8[i] ], 2, 2, 8, mode, 1 );
                }
            } else {
                for( i = 0; i < 16; i++ ) {
                    int pred = pred_intra_mode( h, i );
                    h->intra4x4_pred_mode_cache[ scan8[i] ] = decode_cabac_mb_intra4x4_pred_mode( h, pred );
                }
            }
            ff_h264_write_back_intra_pred_mode(h);
            if( ff_h264_check_intra4x4_pred_mode(h) < 0 ) return -1;
        } else {
            h->intra16x16_pred_mode= ff_h264_check_intra_pred_mode( h, h->intra16x16_pred_mode );
            if( h->intra16x16_pred_mode < 0 ) return -1;
        }
        if(CHROMA){
            h->chroma_pred_mode_table[mb_xy] =
            pred_mode                        = decode_cabac_mb_chroma_pre_mode( h );
            pred_mode= ff_h264_check_intra_pred_mode( h, pred_mode );
            if( pred_mode < 0 ) return -1;
            h->chroma_pred_mode= pred_mode;
        }
    } else if( partition_count == 4 ) {
        int i, j, sub_partition_count[4], list, ref[2][4];
        if( h->slice_type_nos == FF_B_TYPE ) {
            for( i = 0; i < 4; i++ ) {
                h->sub_mb_type[i] = decode_cabac_b_mb_sub_type( h );
                sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
                h->sub_mb_type[i]=      b_sub_mb_type_info[ h->sub_mb_type[i] ].type;
            }
            if( IS_DIRECT(h->sub_mb_type[0] | h->sub_mb_type[1] |
                          h->sub_mb_type[2] | h->sub_mb_type[3]) ) {
                ff_h264_pred_direct_motion(h, &mb_type);
                h->ref_cache[0][scan8[4]] =
                h->ref_cache[1][scan8[4]] =
                h->ref_cache[0][scan8[12]] =
                h->ref_cache[1][scan8[12]] = PART_NOT_AVAILABLE;
                if( h->ref_count[0] > 1 || h->ref_count[1] > 1 ) {
                    for( i = 0; i < 4; i++ )
                        if( IS_DIRECT(h->sub_mb_type[i]) )
                            fill_rectangle( &h->direct_cache[scan8[4*i]], 2, 2, 8, 1, 1 );
                }
            }
        } else {
            for( i = 0; i < 4; i++ ) {
                h->sub_mb_type[i] = decode_cabac_p_mb_sub_type( h );
                sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
                h->sub_mb_type[i]=      p_sub_mb_type_info[ h->sub_mb_type[i] ].type;
            }
        }
        for( list = 0; list < h->list_count; list++ ) {
                for( i = 0; i < 4; i++ ) {
                    if(IS_DIRECT(h->sub_mb_type[i])) continue;
                    if(IS_DIR(h->sub_mb_type[i], 0, list)){
                        if( h->ref_count[list] > 1 ){
                            ref[list][i] = decode_cabac_mb_ref( h, list, 4*i );
                            if(ref[list][i] >= (unsigned)h->ref_count[list]){
                                av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref[list][i], h->ref_count[list]);
                                return -1;
                            }
                        }else
                            ref[list][i] = 0;
                    } else {
                        ref[list][i] = -1;
                    }
                                                       h->ref_cache[list][ scan8[4*i]+1 ]=
                    h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];
                }
        }
        if(dct8x8_allowed)
            dct8x8_allowed = get_dct8x8_allowed(h);
        for(list=0; list<h->list_count; list++){
            for(i=0; i<4; i++){
                h->ref_cache[list][ scan8[4*i]   ]=h->ref_cache[list][ scan8[4*i]+1 ];
                if(IS_DIRECT(h->sub_mb_type[i])){
                    fill_rectangle(h->mvd_cache[list][scan8[4*i]], 2, 2, 8, 0, 4);
                    continue;
                }
                if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){
                    const int sub_mb_type= h->sub_mb_type[i];
                    const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;
                    for(j=0; j<sub_partition_count[i]; j++){
                        int mpx, mpy;
                        int mx, my;
                        const int index= 4*i + block_width*j;
                        int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];
                        int16_t (* mvd_cache)[2]= &h->mvd_cache[list][ scan8[index] ];
                        pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mpx, &mpy);
                        mx = mpx + decode_cabac_mb_mvd( h, list, index, 0 );
                        my = mpy + decode_cabac_mb_mvd( h, list, index, 1 );
                        tprintf(s->avctx, "final mv:%d %d\n", mx, my);
                        if(IS_SUB_8X8(sub_mb_type)){
                            mv_cache[ 1 ][0]=
                            mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;
                            mv_cache[ 1 ][1]=
                            mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;
                            mvd_cache[ 1 ][0]=
                            mvd_cache[ 8 ][0]= mvd_cache[ 9 ][0]= mx - mpx;
                            mvd_cache[ 1 ][1]=
                            mvd_cache[ 8 ][1]= mvd_cache[ 9 ][1]= my - mpy;
                        }else if(IS_SUB_8X4(sub_mb_type)){
                            mv_cache[ 1 ][0]= mx;
                            mv_cache[ 1 ][1]= my;
                            mvd_cache[ 1 ][0]= mx - mpx;
                            mvd_cache[ 1 ][1]= my - mpy;
                        }else if(IS_SUB_4X8(sub_mb_type)){
                            mv_cache[ 8 ][0]= mx;
                            mv_cache[ 8 ][1]= my;
                            mvd_cache[ 8 ][0]= mx - mpx;
                            mvd_cache[ 8 ][1]= my - mpy;
                        }
                        mv_cache[ 0 ][0]= mx;
                        mv_cache[ 0 ][1]= my;
                        mvd_cache[ 0 ][0]= mx - mpx;
                        mvd_cache[ 0 ][1]= my - mpy;
                    }
                }else{
                    uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0];
                    uint32_t *pd= (uint32_t *)&h->mvd_cache[list][ scan8[4*i] ][0];
                    p[0] = p[1] = p[8] = p[9] = 0;
                    pd[0]= pd[1]= pd[8]= pd[9]= 0;
                }
            }
        }
    } else if( IS_DIRECT(mb_type) ) {
        ff_h264_pred_direct_motion(h, &mb_type);
        fill_rectangle(h->mvd_cache[0][scan8[0]], 4, 4, 8, 0, 4);
        fill_rectangle(h->mvd_cache[1][scan8[0]], 4, 4, 8, 0, 4);
        dct8x8_allowed &= h->sps.direct_8x8_inference_flag;
    } else {
        int list, mx, my, i, mpx, mpy;
        if(IS_16X16(mb_type)){
            for(list=0; list<h->list_count; list++){
                if(IS_DIR(mb_type, 0, list)){
                    int ref;
                    if(h->ref_count[list] > 1){
                        ref= decode_cabac_mb_ref(h, list, 0);
                        if(ref >= (unsigned)h->ref_count[list]){
                            av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, h->ref_count[list]);
                            return -1;
                        }
                    }else
                        ref=0;
                        fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, ref, 1);
                }else
                    fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, (uint8_t)LIST_NOT_USED, 1);
            }
            for(list=0; list<h->list_count; list++){
                if(IS_DIR(mb_type, 0, list)){
                    pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mpx, &mpy);
                    mx = mpx + decode_cabac_mb_mvd( h, list, 0, 0 );
                    my = mpy + decode_cabac_mb_mvd( h, list, 0, 1 );
                    tprintf(s->avctx, "final mv:%d %d\n", mx, my);
                    fill_rectangle(h->mvd_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx-mpx,my-mpy), 4);
                    fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);
                }else
                    fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, 0, 4);
            }
        }
        else if(IS_16X8(mb_type)){
            for(list=0; list<h->list_count; list++){
                    for(i=0; i<2; i++){
                        if(IS_DIR(mb_type, i, list)){
                            int ref;
                            if(h->ref_count[list] > 1){
                                ref= decode_cabac_mb_ref( h, list, 8*i );
                                if(ref >= (unsigned)h->ref_count[list]){
                                    av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, h->ref_count[list]);
                                    return -1;
                                }
                            }else
                                ref=0;
                            fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, ref, 1);
                        }else
                            fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, (LIST_NOT_USED&0xFF), 1);
                    }
            }
            for(list=0; list<h->list_count; list++){
                for(i=0; i<2; i++){
                    if(IS_DIR(mb_type, i, list)){
                        pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mpx, &mpy);
                        mx = mpx + decode_cabac_mb_mvd( h, list, 8*i, 0 );
                        my = mpy + decode_cabac_mb_mvd( h, list, 8*i, 1 );
                        tprintf(s->avctx, "final mv:%d %d\n", mx, my);
                        fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx-mpx,my-mpy), 4);
                        fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx,my), 4);
                    }else{
                        fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);
                        fill_rectangle(h-> mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);
                    }
                }
            }
        }else{
            assert(IS_8X16(mb_type));
            for(list=0; list<h->list_count; list++){
                    for(i=0; i<2; i++){
                        if(IS_DIR(mb_type, i, list)){
                            int ref;
                            if(h->ref_count[list] > 1){
                                ref= decode_cabac_mb_ref( h, list, 4*i );
                                if(ref >= (unsigned)h->ref_count[list]){
                                    av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, h->ref_count[list]);
                                    return -1;
                                }
                            }else
                                ref=0;
                            fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, ref, 1);
                        }else
                            fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, (LIST_NOT_USED&0xFF), 1);
                    }
            }
            for(list=0; list<h->list_count; list++){
                for(i=0; i<2; i++){
                    if(IS_DIR(mb_type, i, list)){
                        pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mpx, &mpy);
                        mx = mpx + decode_cabac_mb_mvd( h, list, 4*i, 0 );
                        my = mpy + decode_cabac_mb_mvd( h, list, 4*i, 1 );
                        tprintf(s->avctx, "final mv:%d %d\n", mx, my);
                        fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx-mpx,my-mpy), 4);
                        fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4);
                    }else{
                        fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);
                        fill_rectangle(h-> mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);
                    }
                }
            }
        }
    }
   if( IS_INTER( mb_type ) ) {
        h->chroma_pred_mode_table[mb_xy] = 0;
        write_back_motion( h, mb_type );
   }
    if( !IS_INTRA16x16( mb_type ) ) {
        cbp  = decode_cabac_mb_cbp_luma( h );
        if(CHROMA)
            cbp |= decode_cabac_mb_cbp_chroma( h ) << 4;
    }
    h->cbp_table[mb_xy] = h->cbp = cbp;
    if( dct8x8_allowed && (cbp&15) && !IS_INTRA( mb_type ) ) {
        if( decode_cabac_mb_transform_size( h ) )
            mb_type |= MB_TYPE_8x8DCT;
    }
    s->current_picture.mb_type[mb_xy]= mb_type;
    if( cbp || IS_INTRA16x16( mb_type ) ) {
        const uint8_t *scan, *scan8x8, *dc_scan;
        const uint32_t *qmul;
        int dqp;
        if(IS_INTERLACED(mb_type)){
            scan8x8= s->qscale ? h->field_scan8x8 : h->field_scan8x8_q0;
            scan= s->qscale ? h->field_scan : h->field_scan_q0;
            dc_scan= luma_dc_field_scan;
        }else{
            scan8x8= s->qscale ? h->zigzag_scan8x8 : h->zigzag_scan8x8_q0;
            scan= s->qscale ? h->zigzag_scan : h->zigzag_scan_q0;
            dc_scan= luma_dc_zigzag_scan;
        }
        h->last_qscale_diff = dqp = decode_cabac_mb_dqp( h );
        if( dqp == INT_MIN ){
            av_log(h->s.avctx, AV_LOG_ERROR, "cabac decode of qscale diff failed at %d %d\n", s->mb_x, s->mb_y);
            return -1;
        }
        s->qscale += dqp;
        if(((unsigned)s->qscale) > 51){
            if(s->qscale<0) s->qscale+= 52;
            else            s->qscale-= 52;
        }
        h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale);
        h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale);
        if( IS_INTRA16x16( mb_type ) ) {
            int i;
            decode_cabac_residual( h, h->mb, 0, 0, dc_scan, NULL, 16);
            if( cbp&15 ) {
                qmul = h->dequant4_coeff[0][s->qscale];
                for( i = 0; i < 16; i++ ) {
                    decode_cabac_residual(h, h->mb + 16*i, 1, i, scan + 1, qmul, 15);
                }
            } else {
                fill_rectangle(&h->non_zero_count_cache[scan8[0]], 4, 4, 8, 0, 1);
            }
        } else {
            int i8x8, i4x4;
            for( i8x8 = 0; i8x8 < 4; i8x8++ ) {
                if( cbp & (1<<i8x8) ) {
                    if( IS_8x8DCT(mb_type) ) {
                        decode_cabac_residual(h, h->mb + 64*i8x8, 5, 4*i8x8,
                            scan8x8, h->dequant8_coeff[IS_INTRA( mb_type ) ? 0:1][s->qscale], 64);
                    } else {
                        qmul = h->dequant4_coeff[IS_INTRA( mb_type ) ? 0:3][s->qscale];
                        for( i4x4 = 0; i4x4 < 4; i4x4++ ) {
                            const int index = 4*i8x8 + i4x4;
                            decode_cabac_residual(h, h->mb + 16*index, 2, index, scan, qmul, 16);
                        }
                    }
                } else {
                    uint8_t * const nnz= &h->non_zero_count_cache[ scan8[4*i8x8] ];
                    nnz[0] = nnz[1] = nnz[8] = nnz[9] = 0;
                }
            }
        }
        if( cbp&0x30 ){
            int c;
            for( c = 0; c < 2; c++ ) {
                decode_cabac_residual(h, h->mb + 256 + 16*4*c, 3, c, chroma_dc_scan, NULL, 4);
            }
        }
        if( cbp&0x20 ) {
            int c, i;
            for( c = 0; c < 2; c++ ) {
                qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][h->chroma_qp[c]];
                for( i = 0; i < 4; i++ ) {
                    const int index = 16 + 4 * c + i;
                    decode_cabac_residual(h, h->mb + 16*index, 4, index, scan + 1, qmul, 15);
                }
            }
        } else {
            uint8_t * const nnz= &h->non_zero_count_cache[0];
            nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
            nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
        }
    } else {
        uint8_t * const nnz= &h->non_zero_count_cache[0];
        fill_rectangle(&nnz[scan8[0]], 4, 4, 8, 0, 1);
        nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
        nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
        h->last_qscale_diff = 0;
    }
    s->current_picture.qscale_table[mb_xy]= s->qscale;
    write_back_non_zero_count(h);
    if(MB_MBAFF){
        h->ref_count[0] >>= 1;
        h->ref_count[1] >>= 1;
    }
    return 0;
}
['int ff_h264_decode_mb_cabac(H264Context *h) {\n    MpegEncContext * const s = &h->s;\n    int mb_xy;\n    int mb_type, partition_count, cbp = 0;\n    int dct8x8_allowed= h->pps.transform_8x8_mode;\n    mb_xy = h->mb_xy = s->mb_x + s->mb_y*s->mb_stride;\n    tprintf(s->avctx, "pic:%d mb:%d/%d\\n", h->frame_num, s->mb_x, s->mb_y);\n    if( h->slice_type_nos != FF_I_TYPE ) {\n        int skip;\n        if( FRAME_MBAFF && s->mb_x==0 && (s->mb_y&1)==0 )\n            predict_field_decoding_flag(h);\n        if( FRAME_MBAFF && (s->mb_y&1)==1 && h->prev_mb_skipped )\n            skip = h->next_mb_skipped;\n        else\n            skip = decode_cabac_mb_skip( h, s->mb_x, s->mb_y );\n        if( skip ) {\n            if( FRAME_MBAFF && (s->mb_y&1)==0 ){\n                s->current_picture.mb_type[mb_xy] = MB_TYPE_SKIP;\n                h->next_mb_skipped = decode_cabac_mb_skip( h, s->mb_x, s->mb_y+1 );\n                if(!h->next_mb_skipped)\n                    h->mb_mbaff = h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h);\n            }\n            decode_mb_skip(h);\n            h->cbp_table[mb_xy] = 0;\n            h->chroma_pred_mode_table[mb_xy] = 0;\n            h->last_qscale_diff = 0;\n            return 0;\n        }\n    }\n    if(FRAME_MBAFF){\n        if( (s->mb_y&1) == 0 )\n            h->mb_mbaff =\n            h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h);\n    }\n    h->prev_mb_skipped = 0;\n    compute_mb_neighbors(h);\n    if( h->slice_type_nos == FF_B_TYPE ) {\n        mb_type = decode_cabac_mb_type_b( h );\n        if( mb_type < 23 ){\n            partition_count= b_mb_type_info[mb_type].partition_count;\n            mb_type=         b_mb_type_info[mb_type].type;\n        }else{\n            mb_type -= 23;\n            goto decode_intra_mb;\n        }\n    } else if( h->slice_type_nos == FF_P_TYPE ) {\n        if( get_cabac_noinline( &h->cabac, &h->cabac_state[14] ) == 0 ) {\n            if( get_cabac_noinline( &h->cabac, &h->cabac_state[15] ) == 0 ) {\n                mb_type= 3 * get_cabac_noinline( &h->cabac, &h->cabac_state[16] );\n            } else {\n                mb_type= 2 - get_cabac_noinline( &h->cabac, &h->cabac_state[17] );\n            }\n            partition_count= p_mb_type_info[mb_type].partition_count;\n            mb_type=         p_mb_type_info[mb_type].type;\n        } else {\n            mb_type= decode_cabac_intra_mb_type(h, 17, 0);\n            goto decode_intra_mb;\n        }\n    } else {\n        mb_type= decode_cabac_intra_mb_type(h, 3, 1);\n        if(h->slice_type == FF_SI_TYPE && mb_type)\n            mb_type--;\n        assert(h->slice_type_nos == FF_I_TYPE);\ndecode_intra_mb:\n        partition_count = 0;\n        cbp= i_mb_type_info[mb_type].cbp;\n        h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;\n        mb_type= i_mb_type_info[mb_type].type;\n    }\n    if(MB_FIELD)\n        mb_type |= MB_TYPE_INTERLACED;\n    h->slice_table[ mb_xy ]= h->slice_num;\n    if(IS_INTRA_PCM(mb_type)) {\n        const uint8_t *ptr;\n        ptr= h->cabac.bytestream;\n        if(h->cabac.low&0x1) ptr--;\n        if(CABAC_BITS==16){\n            if(h->cabac.low&0x1FF) ptr--;\n        }\n        memcpy(h->mb, ptr, 256); ptr+=256;\n        if(CHROMA){\n            memcpy(h->mb+128, ptr, 128); ptr+=128;\n        }\n        ff_init_cabac_decoder(&h->cabac, ptr, h->cabac.bytestream_end - ptr);\n        h->cbp_table[mb_xy] = 0x1ef;\n        h->chroma_pred_mode_table[mb_xy] = 0;\n        s->current_picture.qscale_table[mb_xy]= 0;\n        memset(h->non_zero_count[mb_xy], 16, 32);\n        s->current_picture.mb_type[mb_xy]= mb_type;\n        h->last_qscale_diff = 0;\n        return 0;\n    }\n    if(MB_MBAFF){\n        h->ref_count[0] <<= 1;\n        h->ref_count[1] <<= 1;\n    }\n    fill_decode_caches(h, mb_type);\n    if( IS_INTRA( mb_type ) ) {\n        int i, pred_mode;\n        if( IS_INTRA4x4( mb_type ) ) {\n            if( dct8x8_allowed && decode_cabac_mb_transform_size( h ) ) {\n                mb_type |= MB_TYPE_8x8DCT;\n                for( i = 0; i < 16; i+=4 ) {\n                    int pred = pred_intra_mode( h, i );\n                    int mode = decode_cabac_mb_intra4x4_pred_mode( h, pred );\n                    fill_rectangle( &h->intra4x4_pred_mode_cache[ scan8[i] ], 2, 2, 8, mode, 1 );\n                }\n            } else {\n                for( i = 0; i < 16; i++ ) {\n                    int pred = pred_intra_mode( h, i );\n                    h->intra4x4_pred_mode_cache[ scan8[i] ] = decode_cabac_mb_intra4x4_pred_mode( h, pred );\n                }\n            }\n            ff_h264_write_back_intra_pred_mode(h);\n            if( ff_h264_check_intra4x4_pred_mode(h) < 0 ) return -1;\n        } else {\n            h->intra16x16_pred_mode= ff_h264_check_intra_pred_mode( h, h->intra16x16_pred_mode );\n            if( h->intra16x16_pred_mode < 0 ) return -1;\n        }\n        if(CHROMA){\n            h->chroma_pred_mode_table[mb_xy] =\n            pred_mode                        = decode_cabac_mb_chroma_pre_mode( h );\n            pred_mode= ff_h264_check_intra_pred_mode( h, pred_mode );\n            if( pred_mode < 0 ) return -1;\n            h->chroma_pred_mode= pred_mode;\n        }\n    } else if( partition_count == 4 ) {\n        int i, j, sub_partition_count[4], list, ref[2][4];\n        if( h->slice_type_nos == FF_B_TYPE ) {\n            for( i = 0; i < 4; i++ ) {\n                h->sub_mb_type[i] = decode_cabac_b_mb_sub_type( h );\n                sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;\n                h->sub_mb_type[i]=      b_sub_mb_type_info[ h->sub_mb_type[i] ].type;\n            }\n            if( IS_DIRECT(h->sub_mb_type[0] | h->sub_mb_type[1] |\n                          h->sub_mb_type[2] | h->sub_mb_type[3]) ) {\n                ff_h264_pred_direct_motion(h, &mb_type);\n                h->ref_cache[0][scan8[4]] =\n                h->ref_cache[1][scan8[4]] =\n                h->ref_cache[0][scan8[12]] =\n                h->ref_cache[1][scan8[12]] = PART_NOT_AVAILABLE;\n                if( h->ref_count[0] > 1 || h->ref_count[1] > 1 ) {\n                    for( i = 0; i < 4; i++ )\n                        if( IS_DIRECT(h->sub_mb_type[i]) )\n                            fill_rectangle( &h->direct_cache[scan8[4*i]], 2, 2, 8, 1, 1 );\n                }\n            }\n        } else {\n            for( i = 0; i < 4; i++ ) {\n                h->sub_mb_type[i] = decode_cabac_p_mb_sub_type( h );\n                sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;\n                h->sub_mb_type[i]=      p_sub_mb_type_info[ h->sub_mb_type[i] ].type;\n            }\n        }\n        for( list = 0; list < h->list_count; list++ ) {\n                for( i = 0; i < 4; i++ ) {\n                    if(IS_DIRECT(h->sub_mb_type[i])) continue;\n                    if(IS_DIR(h->sub_mb_type[i], 0, list)){\n                        if( h->ref_count[list] > 1 ){\n                            ref[list][i] = decode_cabac_mb_ref( h, list, 4*i );\n                            if(ref[list][i] >= (unsigned)h->ref_count[list]){\n                                av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\\n", ref[list][i], h->ref_count[list]);\n                                return -1;\n                            }\n                        }else\n                            ref[list][i] = 0;\n                    } else {\n                        ref[list][i] = -1;\n                    }\n                                                       h->ref_cache[list][ scan8[4*i]+1 ]=\n                    h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];\n                }\n        }\n        if(dct8x8_allowed)\n            dct8x8_allowed = get_dct8x8_allowed(h);\n        for(list=0; list<h->list_count; list++){\n            for(i=0; i<4; i++){\n                h->ref_cache[list][ scan8[4*i]   ]=h->ref_cache[list][ scan8[4*i]+1 ];\n                if(IS_DIRECT(h->sub_mb_type[i])){\n                    fill_rectangle(h->mvd_cache[list][scan8[4*i]], 2, 2, 8, 0, 4);\n                    continue;\n                }\n                if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){\n                    const int sub_mb_type= h->sub_mb_type[i];\n                    const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;\n                    for(j=0; j<sub_partition_count[i]; j++){\n                        int mpx, mpy;\n                        int mx, my;\n                        const int index= 4*i + block_width*j;\n                        int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];\n                        int16_t (* mvd_cache)[2]= &h->mvd_cache[list][ scan8[index] ];\n                        pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mpx, &mpy);\n                        mx = mpx + decode_cabac_mb_mvd( h, list, index, 0 );\n                        my = mpy + decode_cabac_mb_mvd( h, list, index, 1 );\n                        tprintf(s->avctx, "final mv:%d %d\\n", mx, my);\n                        if(IS_SUB_8X8(sub_mb_type)){\n                            mv_cache[ 1 ][0]=\n                            mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;\n                            mv_cache[ 1 ][1]=\n                            mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;\n                            mvd_cache[ 1 ][0]=\n                            mvd_cache[ 8 ][0]= mvd_cache[ 9 ][0]= mx - mpx;\n                            mvd_cache[ 1 ][1]=\n                            mvd_cache[ 8 ][1]= mvd_cache[ 9 ][1]= my - mpy;\n                        }else if(IS_SUB_8X4(sub_mb_type)){\n                            mv_cache[ 1 ][0]= mx;\n                            mv_cache[ 1 ][1]= my;\n                            mvd_cache[ 1 ][0]= mx - mpx;\n                            mvd_cache[ 1 ][1]= my - mpy;\n                        }else if(IS_SUB_4X8(sub_mb_type)){\n                            mv_cache[ 8 ][0]= mx;\n                            mv_cache[ 8 ][1]= my;\n                            mvd_cache[ 8 ][0]= mx - mpx;\n                            mvd_cache[ 8 ][1]= my - mpy;\n                        }\n                        mv_cache[ 0 ][0]= mx;\n                        mv_cache[ 0 ][1]= my;\n                        mvd_cache[ 0 ][0]= mx - mpx;\n                        mvd_cache[ 0 ][1]= my - mpy;\n                    }\n                }else{\n                    uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0];\n                    uint32_t *pd= (uint32_t *)&h->mvd_cache[list][ scan8[4*i] ][0];\n                    p[0] = p[1] = p[8] = p[9] = 0;\n                    pd[0]= pd[1]= pd[8]= pd[9]= 0;\n                }\n            }\n        }\n    } else if( IS_DIRECT(mb_type) ) {\n        ff_h264_pred_direct_motion(h, &mb_type);\n        fill_rectangle(h->mvd_cache[0][scan8[0]], 4, 4, 8, 0, 4);\n        fill_rectangle(h->mvd_cache[1][scan8[0]], 4, 4, 8, 0, 4);\n        dct8x8_allowed &= h->sps.direct_8x8_inference_flag;\n    } else {\n        int list, mx, my, i, mpx, mpy;\n        if(IS_16X16(mb_type)){\n            for(list=0; list<h->list_count; list++){\n                if(IS_DIR(mb_type, 0, list)){\n                    int ref;\n                    if(h->ref_count[list] > 1){\n                        ref= decode_cabac_mb_ref(h, list, 0);\n                        if(ref >= (unsigned)h->ref_count[list]){\n                            av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\\n", ref, h->ref_count[list]);\n                            return -1;\n                        }\n                    }else\n                        ref=0;\n                        fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, ref, 1);\n                }else\n                    fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, (uint8_t)LIST_NOT_USED, 1);\n            }\n            for(list=0; list<h->list_count; list++){\n                if(IS_DIR(mb_type, 0, list)){\n                    pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mpx, &mpy);\n                    mx = mpx + decode_cabac_mb_mvd( h, list, 0, 0 );\n                    my = mpy + decode_cabac_mb_mvd( h, list, 0, 1 );\n                    tprintf(s->avctx, "final mv:%d %d\\n", mx, my);\n                    fill_rectangle(h->mvd_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx-mpx,my-mpy), 4);\n                    fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);\n                }else\n                    fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, 0, 4);\n            }\n        }\n        else if(IS_16X8(mb_type)){\n            for(list=0; list<h->list_count; list++){\n                    for(i=0; i<2; i++){\n                        if(IS_DIR(mb_type, i, list)){\n                            int ref;\n                            if(h->ref_count[list] > 1){\n                                ref= decode_cabac_mb_ref( h, list, 8*i );\n                                if(ref >= (unsigned)h->ref_count[list]){\n                                    av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\\n", ref, h->ref_count[list]);\n                                    return -1;\n                                }\n                            }else\n                                ref=0;\n                            fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, ref, 1);\n                        }else\n                            fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, (LIST_NOT_USED&0xFF), 1);\n                    }\n            }\n            for(list=0; list<h->list_count; list++){\n                for(i=0; i<2; i++){\n                    if(IS_DIR(mb_type, i, list)){\n                        pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mpx, &mpy);\n                        mx = mpx + decode_cabac_mb_mvd( h, list, 8*i, 0 );\n                        my = mpy + decode_cabac_mb_mvd( h, list, 8*i, 1 );\n                        tprintf(s->avctx, "final mv:%d %d\\n", mx, my);\n                        fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx-mpx,my-mpy), 4);\n                        fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx,my), 4);\n                    }else{\n                        fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);\n                        fill_rectangle(h-> mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);\n                    }\n                }\n            }\n        }else{\n            assert(IS_8X16(mb_type));\n            for(list=0; list<h->list_count; list++){\n                    for(i=0; i<2; i++){\n                        if(IS_DIR(mb_type, i, list)){\n                            int ref;\n                            if(h->ref_count[list] > 1){\n                                ref= decode_cabac_mb_ref( h, list, 4*i );\n                                if(ref >= (unsigned)h->ref_count[list]){\n                                    av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\\n", ref, h->ref_count[list]);\n                                    return -1;\n                                }\n                            }else\n                                ref=0;\n                            fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, ref, 1);\n                        }else\n                            fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, (LIST_NOT_USED&0xFF), 1);\n                    }\n            }\n            for(list=0; list<h->list_count; list++){\n                for(i=0; i<2; i++){\n                    if(IS_DIR(mb_type, i, list)){\n                        pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mpx, &mpy);\n                        mx = mpx + decode_cabac_mb_mvd( h, list, 4*i, 0 );\n                        my = mpy + decode_cabac_mb_mvd( h, list, 4*i, 1 );\n                        tprintf(s->avctx, "final mv:%d %d\\n", mx, my);\n                        fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx-mpx,my-mpy), 4);\n                        fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4);\n                    }else{\n                        fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);\n                        fill_rectangle(h-> mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);\n                    }\n                }\n            }\n        }\n    }\n   if( IS_INTER( mb_type ) ) {\n        h->chroma_pred_mode_table[mb_xy] = 0;\n        write_back_motion( h, mb_type );\n   }\n    if( !IS_INTRA16x16( mb_type ) ) {\n        cbp  = decode_cabac_mb_cbp_luma( h );\n        if(CHROMA)\n            cbp |= decode_cabac_mb_cbp_chroma( h ) << 4;\n    }\n    h->cbp_table[mb_xy] = h->cbp = cbp;\n    if( dct8x8_allowed && (cbp&15) && !IS_INTRA( mb_type ) ) {\n        if( decode_cabac_mb_transform_size( h ) )\n            mb_type |= MB_TYPE_8x8DCT;\n    }\n    s->current_picture.mb_type[mb_xy]= mb_type;\n    if( cbp || IS_INTRA16x16( mb_type ) ) {\n        const uint8_t *scan, *scan8x8, *dc_scan;\n        const uint32_t *qmul;\n        int dqp;\n        if(IS_INTERLACED(mb_type)){\n            scan8x8= s->qscale ? h->field_scan8x8 : h->field_scan8x8_q0;\n            scan= s->qscale ? h->field_scan : h->field_scan_q0;\n            dc_scan= luma_dc_field_scan;\n        }else{\n            scan8x8= s->qscale ? h->zigzag_scan8x8 : h->zigzag_scan8x8_q0;\n            scan= s->qscale ? h->zigzag_scan : h->zigzag_scan_q0;\n            dc_scan= luma_dc_zigzag_scan;\n        }\n        h->last_qscale_diff = dqp = decode_cabac_mb_dqp( h );\n        if( dqp == INT_MIN ){\n            av_log(h->s.avctx, AV_LOG_ERROR, "cabac decode of qscale diff failed at %d %d\\n", s->mb_x, s->mb_y);\n            return -1;\n        }\n        s->qscale += dqp;\n        if(((unsigned)s->qscale) > 51){\n            if(s->qscale<0) s->qscale+= 52;\n            else            s->qscale-= 52;\n        }\n        h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale);\n        h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale);\n        if( IS_INTRA16x16( mb_type ) ) {\n            int i;\n            decode_cabac_residual( h, h->mb, 0, 0, dc_scan, NULL, 16);\n            if( cbp&15 ) {\n                qmul = h->dequant4_coeff[0][s->qscale];\n                for( i = 0; i < 16; i++ ) {\n                    decode_cabac_residual(h, h->mb + 16*i, 1, i, scan + 1, qmul, 15);\n                }\n            } else {\n                fill_rectangle(&h->non_zero_count_cache[scan8[0]], 4, 4, 8, 0, 1);\n            }\n        } else {\n            int i8x8, i4x4;\n            for( i8x8 = 0; i8x8 < 4; i8x8++ ) {\n                if( cbp & (1<<i8x8) ) {\n                    if( IS_8x8DCT(mb_type) ) {\n                        decode_cabac_residual(h, h->mb + 64*i8x8, 5, 4*i8x8,\n                            scan8x8, h->dequant8_coeff[IS_INTRA( mb_type ) ? 0:1][s->qscale], 64);\n                    } else {\n                        qmul = h->dequant4_coeff[IS_INTRA( mb_type ) ? 0:3][s->qscale];\n                        for( i4x4 = 0; i4x4 < 4; i4x4++ ) {\n                            const int index = 4*i8x8 + i4x4;\n                            decode_cabac_residual(h, h->mb + 16*index, 2, index, scan, qmul, 16);\n                        }\n                    }\n                } else {\n                    uint8_t * const nnz= &h->non_zero_count_cache[ scan8[4*i8x8] ];\n                    nnz[0] = nnz[1] = nnz[8] = nnz[9] = 0;\n                }\n            }\n        }\n        if( cbp&0x30 ){\n            int c;\n            for( c = 0; c < 2; c++ ) {\n                decode_cabac_residual(h, h->mb + 256 + 16*4*c, 3, c, chroma_dc_scan, NULL, 4);\n            }\n        }\n        if( cbp&0x20 ) {\n            int c, i;\n            for( c = 0; c < 2; c++ ) {\n                qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][h->chroma_qp[c]];\n                for( i = 0; i < 4; i++ ) {\n                    const int index = 16 + 4 * c + i;\n                    decode_cabac_residual(h, h->mb + 16*index, 4, index, scan + 1, qmul, 15);\n                }\n            }\n        } else {\n            uint8_t * const nnz= &h->non_zero_count_cache[0];\n            nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =\n            nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;\n        }\n    } else {\n        uint8_t * const nnz= &h->non_zero_count_cache[0];\n        fill_rectangle(&nnz[scan8[0]], 4, 4, 8, 0, 1);\n        nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =\n        nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;\n        h->last_qscale_diff = 0;\n    }\n    s->current_picture.qscale_table[mb_xy]= s->qscale;\n    write_back_non_zero_count(h);\n    if(MB_MBAFF){\n        h->ref_count[0] >>= 1;\n        h->ref_count[1] >>= 1;\n    }\n    return 0;\n}', 'void ff_h264_pred_direct_motion(H264Context * const h, int *mb_type){\n    MpegEncContext * const s = &h->s;\n    int b8_stride = h->b8_stride;\n    int b4_stride = h->b_stride;\n    int mb_xy = h->mb_xy;\n    int mb_type_col[2];\n    const int16_t (*l1mv0)[2], (*l1mv1)[2];\n    const int8_t *l1ref0, *l1ref1;\n    const int is_b8x8 = IS_8X8(*mb_type);\n    unsigned int sub_mb_type;\n    int i8, i4;\n    assert(h->ref_list[1][0].reference&3);\n#define MB_TYPE_16x16_OR_INTRA (MB_TYPE_16x16|MB_TYPE_INTRA4x4|MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM)\n    if(IS_INTERLACED(h->ref_list[1][0].mb_type[mb_xy])){\n        if(!IS_INTERLACED(*mb_type)){\n            int cur_poc = s->current_picture_ptr->poc;\n            int *col_poc = h->ref_list[1]->field_poc;\n            int col_parity = FFABS(col_poc[0] - cur_poc) >= FFABS(col_poc[1] - cur_poc);\n            mb_xy= s->mb_x + ((s->mb_y&~1) + col_parity)*s->mb_stride;\n            b8_stride = 0;\n        }else if(!(s->picture_structure & h->ref_list[1][0].reference) && !h->ref_list[1][0].mbaff){\n            int fieldoff= 2*(h->ref_list[1][0].reference)-3;\n            mb_xy += s->mb_stride*fieldoff;\n        }\n        goto single_col;\n    }else{\n        if(IS_INTERLACED(*mb_type)){\n            mb_xy= s->mb_x + (s->mb_y&~1)*s->mb_stride;\n            mb_type_col[0] = h->ref_list[1][0].mb_type[mb_xy];\n            mb_type_col[1] = h->ref_list[1][0].mb_type[mb_xy + s->mb_stride];\n            b8_stride *= 3;\n            b4_stride *= 6;\n            if(    (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)\n                && (mb_type_col[1] & MB_TYPE_16x16_OR_INTRA)\n                && !is_b8x8){\n                sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2;\n                *mb_type   |= MB_TYPE_16x8 |MB_TYPE_L0L1|MB_TYPE_DIRECT2;\n            }else{\n                sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2;\n                *mb_type   |= MB_TYPE_8x8|MB_TYPE_L0L1;\n            }\n        }else{\nsingle_col:\n            mb_type_col[0] =\n            mb_type_col[1] = h->ref_list[1][0].mb_type[mb_xy];\n            if(IS_8X8(mb_type_col[0]) && !h->sps.direct_8x8_inference_flag){\n                sub_mb_type = MB_TYPE_8x8|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2;\n                *mb_type   |= MB_TYPE_8x8|MB_TYPE_L0L1;\n            }else if(!is_b8x8 && (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)){\n                sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2;\n                *mb_type   |= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2;\n            }else{\n                sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2;\n                *mb_type   |= MB_TYPE_8x8|MB_TYPE_L0L1;\n            }\n        }\n    }\n    l1mv0  = &h->ref_list[1][0].motion_val[0][h->mb2b_xy [mb_xy]];\n    l1mv1  = &h->ref_list[1][0].motion_val[1][h->mb2b_xy [mb_xy]];\n    l1ref0 = &h->ref_list[1][0].ref_index [0][h->mb2b8_xy[mb_xy]];\n    l1ref1 = &h->ref_list[1][0].ref_index [1][h->mb2b8_xy[mb_xy]];\n    if(!b8_stride){\n        if(s->mb_y&1){\n            l1ref0 += h->b8_stride;\n            l1ref1 += h->b8_stride;\n            l1mv0  +=  2*b4_stride;\n            l1mv1  +=  2*b4_stride;\n        }\n    }\n    if(h->direct_spatial_mv_pred){\n        int ref[2];\n        int mv[2][2];\n        int list;\n        for(list=0; list<2; list++){\n            int refa = h->ref_cache[list][scan8[0] - 1];\n            int refb = h->ref_cache[list][scan8[0] - 8];\n            int refc = h->ref_cache[list][scan8[0] - 8 + 4];\n            if(refc == PART_NOT_AVAILABLE)\n                refc = h->ref_cache[list][scan8[0] - 8 - 1];\n            ref[list] = FFMIN3((unsigned)refa, (unsigned)refb, (unsigned)refc);\n            if(ref[list] < 0)\n                ref[list] = -1;\n        }\n        if(ref[0] < 0 && ref[1] < 0){\n            ref[0] = ref[1] = 0;\n            mv[0][0] = mv[0][1] =\n            mv[1][0] = mv[1][1] = 0;\n        }else{\n            for(list=0; list<2; list++){\n                if(ref[list] >= 0)\n                    pred_motion(h, 0, 4, list, ref[list], &mv[list][0], &mv[list][1]);\n                else\n                    mv[list][0] = mv[list][1] = 0;\n            }\n        }\n        if(ref[1] < 0){\n            if(!is_b8x8)\n                *mb_type &= ~MB_TYPE_L1;\n            sub_mb_type &= ~MB_TYPE_L1;\n        }else if(ref[0] < 0){\n            if(!is_b8x8)\n                *mb_type &= ~MB_TYPE_L0;\n            sub_mb_type &= ~MB_TYPE_L0;\n        }\n        if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])){\n            for(i8=0; i8<4; i8++){\n                int x8 = i8&1;\n                int y8 = i8>>1;\n                int xy8 = x8+y8*b8_stride;\n                int xy4 = 3*x8+y8*b4_stride;\n                int a=0, b=0;\n                if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))\n                    continue;\n                h->sub_mb_type[i8] = sub_mb_type;\n                fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[0], 1);\n                fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[1], 1);\n                if(!IS_INTRA(mb_type_col[y8])\n                   && (   (l1ref0[xy8] == 0 && FFABS(l1mv0[xy4][0]) <= 1 && FFABS(l1mv0[xy4][1]) <= 1)\n                       || (l1ref0[xy8]  < 0 && l1ref1[xy8] == 0 && FFABS(l1mv1[xy4][0]) <= 1 && FFABS(l1mv1[xy4][1]) <= 1))){\n                    if(ref[0] > 0)\n                        a= pack16to32(mv[0][0],mv[0][1]);\n                    if(ref[1] > 0)\n                        b= pack16to32(mv[1][0],mv[1][1]);\n                }else{\n                    a= pack16to32(mv[0][0],mv[0][1]);\n                    b= pack16to32(mv[1][0],mv[1][1]);\n                }\n                fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, a, 4);\n                fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, b, 4);\n            }\n        }else if(IS_16X16(*mb_type)){\n            int a=0, b=0;\n            fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);\n            fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);\n            if(!IS_INTRA(mb_type_col[0])\n               && (   (l1ref0[0] == 0 && FFABS(l1mv0[0][0]) <= 1 && FFABS(l1mv0[0][1]) <= 1)\n                   || (l1ref0[0]  < 0 && l1ref1[0] == 0 && FFABS(l1mv1[0][0]) <= 1 && FFABS(l1mv1[0][1]) <= 1\n                       && (h->x264_build>33 || !h->x264_build)))){\n                if(ref[0] > 0)\n                    a= pack16to32(mv[0][0],mv[0][1]);\n                if(ref[1] > 0)\n                    b= pack16to32(mv[1][0],mv[1][1]);\n            }else{\n                a= pack16to32(mv[0][0],mv[0][1]);\n                b= pack16to32(mv[1][0],mv[1][1]);\n            }\n            fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, a, 4);\n            fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, b, 4);\n        }else{\n            for(i8=0; i8<4; i8++){\n                const int x8 = i8&1;\n                const int y8 = i8>>1;\n                if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))\n                    continue;\n                h->sub_mb_type[i8] = sub_mb_type;\n                fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mv[0][0],mv[0][1]), 4);\n                fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mv[1][0],mv[1][1]), 4);\n                fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[0], 1);\n                fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[1], 1);\n                if(!IS_INTRA(mb_type_col[0]) && (   l1ref0[x8 + y8*b8_stride] == 0\n                                              || (l1ref0[x8 + y8*b8_stride] < 0 && l1ref1[x8 + y8*b8_stride] == 0\n                                                  && (h->x264_build>33 || !h->x264_build)))){\n                    const int16_t (*l1mv)[2]= l1ref0[x8 + y8*b8_stride] == 0 ? l1mv0 : l1mv1;\n                    if(IS_SUB_8X8(sub_mb_type)){\n                        const int16_t *mv_col = l1mv[x8*3 + y8*3*b4_stride];\n                        if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){\n                            if(ref[0] == 0)\n                                fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);\n                            if(ref[1] == 0)\n                                fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);\n                        }\n                    }else\n                    for(i4=0; i4<4; i4++){\n                        const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*b4_stride];\n                        if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){\n                            if(ref[0] == 0)\n                                *(uint32_t*)h->mv_cache[0][scan8[i8*4+i4]] = 0;\n                            if(ref[1] == 0)\n                                *(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] = 0;\n                        }\n                    }\n                }\n            }\n        }\n    }else{\n        const int *map_col_to_list0[2] = {h->map_col_to_list0[0], h->map_col_to_list0[1]};\n        const int *dist_scale_factor = h->dist_scale_factor;\n        int ref_offset= 0;\n        if(FRAME_MBAFF && IS_INTERLACED(*mb_type)){\n            map_col_to_list0[0] = h->map_col_to_list0_field[s->mb_y&1][0];\n            map_col_to_list0[1] = h->map_col_to_list0_field[s->mb_y&1][1];\n            dist_scale_factor   =h->dist_scale_factor_field[s->mb_y&1];\n        }\n        if(h->ref_list[1][0].mbaff && IS_INTERLACED(mb_type_col[0]))\n            ref_offset += 16;\n        if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])){\n            int y_shift  = 2*!IS_INTERLACED(*mb_type);\n            for(i8=0; i8<4; i8++){\n                const int x8 = i8&1;\n                const int y8 = i8>>1;\n                int ref0, scale;\n                const int16_t (*l1mv)[2]= l1mv0;\n                if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))\n                    continue;\n                h->sub_mb_type[i8] = sub_mb_type;\n                fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);\n                if(IS_INTRA(mb_type_col[y8])){\n                    fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);\n                    fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);\n                    fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);\n                    continue;\n                }\n                ref0 = l1ref0[x8 + y8*b8_stride];\n                if(ref0 >= 0)\n                    ref0 = map_col_to_list0[0][ref0 + ref_offset];\n                else{\n                    ref0 = map_col_to_list0[1][l1ref1[x8 + y8*b8_stride] + ref_offset];\n                    l1mv= l1mv1;\n                }\n                scale = dist_scale_factor[ref0];\n                fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);\n                {\n                    const int16_t *mv_col = l1mv[x8*3 + y8*b4_stride];\n                    int my_col = (mv_col[1]<<y_shift)/2;\n                    int mx = (scale * mv_col[0] + 128) >> 8;\n                    int my = (scale * my_col + 128) >> 8;\n                    fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4);\n                    fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-my_col), 4);\n                }\n            }\n            return;\n        }\n        if(IS_16X16(*mb_type)){\n            int ref, mv0, mv1;\n            fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, 0, 1);\n            if(IS_INTRA(mb_type_col[0])){\n                ref=mv0=mv1=0;\n            }else{\n                const int ref0 = l1ref0[0] >= 0 ? map_col_to_list0[0][l1ref0[0] + ref_offset]\n                                                : map_col_to_list0[1][l1ref1[0] + ref_offset];\n                const int scale = dist_scale_factor[ref0];\n                const int16_t *mv_col = l1ref0[0] >= 0 ? l1mv0[0] : l1mv1[0];\n                int mv_l0[2];\n                mv_l0[0] = (scale * mv_col[0] + 128) >> 8;\n                mv_l0[1] = (scale * mv_col[1] + 128) >> 8;\n                ref= ref0;\n                mv0= pack16to32(mv_l0[0],mv_l0[1]);\n                mv1= pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]);\n            }\n            fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1);\n            fill_rectangle(&h-> mv_cache[0][scan8[0]], 4, 4, 8, mv0, 4);\n            fill_rectangle(&h-> mv_cache[1][scan8[0]], 4, 4, 8, mv1, 4);\n        }else{\n            for(i8=0; i8<4; i8++){\n                const int x8 = i8&1;\n                const int y8 = i8>>1;\n                int ref0, scale;\n                const int16_t (*l1mv)[2]= l1mv0;\n                if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))\n                    continue;\n                h->sub_mb_type[i8] = sub_mb_type;\n                fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);\n                if(IS_INTRA(mb_type_col[0])){\n                    fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);\n                    fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);\n                    fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);\n                    continue;\n                }\n                ref0 = l1ref0[x8 + y8*b8_stride] + ref_offset;\n                if(ref0 >= 0)\n                    ref0 = map_col_to_list0[0][ref0];\n                else{\n                    ref0 = map_col_to_list0[1][l1ref1[x8 + y8*b8_stride] + ref_offset];\n                    l1mv= l1mv1;\n                }\n                scale = dist_scale_factor[ref0];\n                fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);\n                if(IS_SUB_8X8(sub_mb_type)){\n                    const int16_t *mv_col = l1mv[x8*3 + y8*3*b4_stride];\n                    int mx = (scale * mv_col[0] + 128) >> 8;\n                    int my = (scale * mv_col[1] + 128) >> 8;\n                    fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4);\n                    fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-mv_col[1]), 4);\n                }else\n                for(i4=0; i4<4; i4++){\n                    const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*b4_stride];\n                    int16_t *mv_l0 = h->mv_cache[0][scan8[i8*4+i4]];\n                    mv_l0[0] = (scale * mv_col[0] + 128) >> 8;\n                    mv_l0[1] = (scale * mv_col[1] + 128) >> 8;\n                    *(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] =\n                        pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]);\n                }\n            }\n        }\n    }\n}']