error_resilience.c

            const int mb_type= s->current_picture.mb_type[mb_xy];

            error= s->error_status_table[mb_xy];

            if(IS_INTER(mb_type)) continue;
            if(!(error&AC_ERROR)) continue;              //undamaged

            dest_y = s->current_picture.data[0] + mb_x*16 + mb_y*16*s->linesize;
            dest_cb= s->current_picture.data[1] + mb_x*8  + mb_y*8 *s->uvlinesize;
            dest_cr= s->current_picture.data[2] + mb_x*8  + mb_y*8 *s->uvlinesize;

            put_dc(s, dest_y, dest_cb, dest_cr, mb_x, mb_y);
        }
    }
#endif

    if(s->avctx->error_concealment&FF_EC_DEBLOCK){
        /* filter horizontal block boundaries */
        h_block_filter(s, s->current_picture.data[0], s->mb_width*2, s->mb_height*2, s->linesize  , 1);
        h_block_filter(s, s->current_picture.data[1], s->mb_width  , s->mb_height  , s->uvlinesize, 0);
        h_block_filter(s, s->current_picture.data[2], s->mb_width  , s->mb_height  , s->uvlinesize, 0);

        /* filter vertical block boundaries */
        v_block_filter(s, s->current_picture.data[0], s->mb_width*2, s->mb_height*2, s->linesize  , 1);
        v_block_filter(s, s->current_picture.data[1], s->mb_width  , s->mb_height  , s->uvlinesize, 0);
        v_block_filter(s, s->current_picture.data[2], s->mb_width  , s->mb_height  , s->uvlinesize, 0);
    }

ec_clean:
    /* clean a few tables */
    for(i=0; i<s->mb_num; i++){
        const int mb_xy= s->mb_index2xy[i];
        int error= s->error_status_table[mb_xy];

        if(s->pict_type!=FF_B_TYPE && (error&(DC_ERROR|MV_ERROR|AC_ERROR))){
            s->mbskip_table[mb_xy]=0;
        }
        s->mbintra_table[mb_xy]=1;
    }
}