X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftags%2Fsynfig_0_61_03%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavcodec%2Ferror_resilience.c;fp=synfig-core%2Ftags%2Fsynfig_0_61_03%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavcodec%2Ferror_resilience.c;h=5ac2190b38a48f16a32d8451ccd4e5c0eae52b73;hb=2362dce2bb8c6a5fd5f3bd049975c3d89411f5d3;hp=0000000000000000000000000000000000000000;hpb=6f41e88a004056081fbf3e45c4eb9780cc08cd91;p=synfig.git diff --git a/synfig-core/tags/synfig_0_61_03/synfig-core/src/modules/mod_libavcodec/libavcodec/error_resilience.c b/synfig-core/tags/synfig_0_61_03/synfig-core/src/modules/mod_libavcodec/libavcodec/error_resilience.c new file mode 100644 index 0000000..5ac2190 --- /dev/null +++ b/synfig-core/tags/synfig_0_61_03/synfig-core/src/modules/mod_libavcodec/libavcodec/error_resilience.c @@ -0,0 +1,1007 @@ +/* + * Error resilience / concealment + * + * Copyright (c) 2002 Michael Niedermayer + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/** + * @file error_resilience.c + * Error resilience / concealment. + */ + +#include + +#include "avcodec.h" +#include "dsputil.h" +#include "mpegvideo.h" +#include "common.h" + +static void decode_mb(MpegEncContext *s){ + s->dest[0] = s->current_picture.data[0] + (s->mb_y * 16* s->linesize ) + s->mb_x * 16; + s->dest[1] = s->current_picture.data[1] + (s->mb_y * 8 * s->uvlinesize) + s->mb_x * 8; + s->dest[2] = s->current_picture.data[2] + (s->mb_y * 8 * s->uvlinesize) + s->mb_x * 8; + + MPV_decode_mb(s, s->block); +} + +/** + * replaces the current MB with a flat dc only version. + */ +static void put_dc(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int mb_x, int mb_y) +{ + int dc, dcu, dcv, y, i; + for(i=0; i<4; i++){ + dc= s->dc_val[0][mb_x*2+1 + (i&1) + (mb_y*2+1 + (i>>1))*(s->mb_width*2+2)]; + if(dc<0) dc=0; + else if(dc>2040) dc=2040; + for(y=0; y<8; y++){ + int x; + for(x=0; x<8; x++){ + dest_y[x + (i&1)*8 + (y + (i>>1)*8)*s->linesize]= dc/8; + } + } + } + dcu = s->dc_val[1][mb_x+1 + (mb_y+1)*(s->mb_width+2)]; + dcv = s->dc_val[2][mb_x+1 + (mb_y+1)*(s->mb_width+2)]; + if (dcu<0 ) dcu=0; + else if(dcu>2040) dcu=2040; + if (dcv<0 ) dcv=0; + else if(dcv>2040) dcv=2040; + for(y=0; y<8; y++){ + int x; + for(x=0; x<8; x++){ + dest_cb[x + y*(s->uvlinesize)]= dcu/8; + dest_cr[x + y*(s->uvlinesize)]= dcv/8; + } + } +} + +static void filter181(int16_t *data, int width, int height, int stride){ + int x,y; + + /* horizontal filter */ + for(y=1; y>16; + prev_dc= data[x + y*stride]; + data[x + y*stride]= dc; + } + } + + /* vertical filter */ + for(x=1; x>16; + prev_dc= data[x + y*stride]; + data[x + y*stride]= dc; + } + } +} + +/** + * guess the dc of blocks which dont have a undamaged dc + * @param w width in 8 pixel blocks + * @param h height in 8 pixel blocks + */ +static void guess_dc(MpegEncContext *s, int16_t *dc, int w, int h, int stride, int is_luma){ + int b_x, b_y; + + for(b_y=0; b_y>is_luma) + (b_y>>is_luma)*s->mb_stride; + + error= s->error_status_table[mb_index]; + + if(IS_INTER(s->current_picture.mb_type[mb_index])) continue; //inter + if(!(error&DC_ERROR)) continue; //dc-ok + + /* right block */ + for(j=b_x+1; j>is_luma) + (b_y>>is_luma)*s->mb_stride; + int error_j= s->error_status_table[mb_index_j]; + int intra_j= IS_INTRA(s->current_picture.mb_type[mb_index_j]); + if(intra_j==0 || !(error_j&DC_ERROR)){ + color[0]= dc[j + b_y*stride]; + distance[0]= j-b_x; + break; + } + } + + /* left block */ + for(j=b_x-1; j>=0; j--){ + int mb_index_j= (j>>is_luma) + (b_y>>is_luma)*s->mb_stride; + int error_j= s->error_status_table[mb_index_j]; + int intra_j= IS_INTRA(s->current_picture.mb_type[mb_index_j]); + if(intra_j==0 || !(error_j&DC_ERROR)){ + color[1]= dc[j + b_y*stride]; + distance[1]= b_x-j; + break; + } + } + + /* bottom block */ + for(j=b_y+1; j>is_luma) + (j>>is_luma)*s->mb_stride; + int error_j= s->error_status_table[mb_index_j]; + int intra_j= IS_INTRA(s->current_picture.mb_type[mb_index_j]); + if(intra_j==0 || !(error_j&DC_ERROR)){ + color[2]= dc[b_x + j*stride]; + distance[2]= j-b_y; + break; + } + } + + /* top block */ + for(j=b_y-1; j>=0; j--){ + int mb_index_j= (b_x>>is_luma) + (j>>is_luma)*s->mb_stride; + int error_j= s->error_status_table[mb_index_j]; + int intra_j= IS_INTRA(s->current_picture.mb_type[mb_index_j]); + if(intra_j==0 || !(error_j&DC_ERROR)){ + color[3]= dc[b_x + j*stride]; + distance[3]= b_y-j; + break; + } + } + + weight_sum=0; + guess=0; + for(j=0; j<4; j++){ + int64_t weight= 256*256*256*16/distance[j]; + guess+= weight*(int64_t)color[j]; + weight_sum+= weight; + } + guess= (guess + weight_sum/2) / weight_sum; + + dc[b_x + b_y*stride]= guess; + } + } +} + +/** + * simple horizontal deblocking filter used for error resilience + * @param w width in 8 pixel blocks + * @param h height in 8 pixel blocks + */ +static void h_block_filter(MpegEncContext *s, uint8_t *dst, int w, int h, int stride, int is_luma){ + int b_x, b_y; + uint8_t *cm = cropTbl + MAX_NEG_CROP; + + for(b_y=0; b_yerror_status_table[( b_x >>is_luma) + (b_y>>is_luma)*s->mb_stride]; + int right_status= s->error_status_table[((b_x+1)>>is_luma) + (b_y>>is_luma)*s->mb_stride]; + int left_intra= IS_INTRA(s->current_picture.mb_type [( b_x >>is_luma) + (b_y>>is_luma)*s->mb_stride]); + int right_intra= IS_INTRA(s->current_picture.mb_type [((b_x+1)>>is_luma) + (b_y>>is_luma)*s->mb_stride]); + int left_damage = left_status&(DC_ERROR|AC_ERROR|MV_ERROR); + int right_damage= right_status&(DC_ERROR|AC_ERROR|MV_ERROR); + int offset= b_x*8 + b_y*stride*8; + int16_t *left_mv= s->motion_val[s->block_wrap[0]*((b_y<<(1-is_luma)) + 1) + ( b_x <<(1-is_luma))]; + int16_t *right_mv= s->motion_val[s->block_wrap[0]*((b_y<<(1-is_luma)) + 1) + ((b_x+1)<<(1-is_luma))]; + + if(!(left_damage||right_damage)) continue; // both undamaged + + if( (!left_intra) && (!right_intra) + && ABS(left_mv[0]-right_mv[0]) + ABS(left_mv[1]+right_mv[1]) < 2) continue; + + for(y=0; y<8; y++){ + int a,b,c,d; + + a= dst[offset + 7 + y*stride] - dst[offset + 6 + y*stride]; + b= dst[offset + 8 + y*stride] - dst[offset + 7 + y*stride]; + c= dst[offset + 9 + y*stride] - dst[offset + 8 + y*stride]; + + d= ABS(b) - ((ABS(a) + ABS(c) + 1)>>1); + d= FFMAX(d, 0); + if(b<0) d= -d; + + if(d==0) continue; + + if(!(left_damage && right_damage)) + d= d*16/9; + + if(left_damage){ + dst[offset + 7 + y*stride] = cm[dst[offset + 7 + y*stride] + ((d*7)>>4)]; + dst[offset + 6 + y*stride] = cm[dst[offset + 6 + y*stride] + ((d*5)>>4)]; + dst[offset + 5 + y*stride] = cm[dst[offset + 5 + y*stride] + ((d*3)>>4)]; + dst[offset + 4 + y*stride] = cm[dst[offset + 4 + y*stride] + ((d*1)>>4)]; + } + if(right_damage){ + dst[offset + 8 + y*stride] = cm[dst[offset + 8 + y*stride] - ((d*7)>>4)]; + dst[offset + 9 + y*stride] = cm[dst[offset + 9 + y*stride] - ((d*5)>>4)]; + dst[offset + 10+ y*stride] = cm[dst[offset +10 + y*stride] - ((d*3)>>4)]; + dst[offset + 11+ y*stride] = cm[dst[offset +11 + y*stride] - ((d*1)>>4)]; + } + } + } + } +} + +/** + * simple vertical deblocking filter used for error resilience + * @param w width in 8 pixel blocks + * @param h height in 8 pixel blocks + */ +static void v_block_filter(MpegEncContext *s, uint8_t *dst, int w, int h, int stride, int is_luma){ + int b_x, b_y; + uint8_t *cm = cropTbl + MAX_NEG_CROP; + + for(b_y=0; b_yerror_status_table[(b_x>>is_luma) + ( b_y >>is_luma)*s->mb_stride]; + int bottom_status= s->error_status_table[(b_x>>is_luma) + ((b_y+1)>>is_luma)*s->mb_stride]; + int top_intra= IS_INTRA(s->current_picture.mb_type [(b_x>>is_luma) + ( b_y >>is_luma)*s->mb_stride]); + int bottom_intra= IS_INTRA(s->current_picture.mb_type [(b_x>>is_luma) + ((b_y+1)>>is_luma)*s->mb_stride]); + int top_damage = top_status&(DC_ERROR|AC_ERROR|MV_ERROR); + int bottom_damage= bottom_status&(DC_ERROR|AC_ERROR|MV_ERROR); + int offset= b_x*8 + b_y*stride*8; + int16_t *top_mv= s->motion_val[s->block_wrap[0]*(( b_y <<(1-is_luma)) + 1) + (b_x<<(1-is_luma))]; + int16_t *bottom_mv= s->motion_val[s->block_wrap[0]*(((b_y+1)<<(1-is_luma)) + 1) + (b_x<<(1-is_luma))]; + + if(!(top_damage||bottom_damage)) continue; // both undamaged + + if( (!top_intra) && (!bottom_intra) + && ABS(top_mv[0]-bottom_mv[0]) + ABS(top_mv[1]+bottom_mv[1]) < 2) continue; + + for(x=0; x<8; x++){ + int a,b,c,d; + + a= dst[offset + x + 7*stride] - dst[offset + x + 6*stride]; + b= dst[offset + x + 8*stride] - dst[offset + x + 7*stride]; + c= dst[offset + x + 9*stride] - dst[offset + x + 8*stride]; + + d= ABS(b) - ((ABS(a) + ABS(c)+1)>>1); + d= FFMAX(d, 0); + if(b<0) d= -d; + + if(d==0) continue; + + if(!(top_damage && bottom_damage)) + d= d*16/9; + + if(top_damage){ + dst[offset + x + 7*stride] = cm[dst[offset + x + 7*stride] + ((d*7)>>4)]; + dst[offset + x + 6*stride] = cm[dst[offset + x + 6*stride] + ((d*5)>>4)]; + dst[offset + x + 5*stride] = cm[dst[offset + x + 5*stride] + ((d*3)>>4)]; + dst[offset + x + 4*stride] = cm[dst[offset + x + 4*stride] + ((d*1)>>4)]; + } + if(bottom_damage){ + dst[offset + x + 8*stride] = cm[dst[offset + x + 8*stride] - ((d*7)>>4)]; + dst[offset + x + 9*stride] = cm[dst[offset + x + 9*stride] - ((d*5)>>4)]; + dst[offset + x + 10*stride] = cm[dst[offset + x + 10*stride] - ((d*3)>>4)]; + dst[offset + x + 11*stride] = cm[dst[offset + x + 11*stride] - ((d*1)>>4)]; + } + } + } + } +} + +static void guess_mv(MpegEncContext *s){ + uint8_t fixed[s->mb_stride * s->mb_height]; +#define MV_FROZEN 3 +#define MV_CHANGED 2 +#define MV_UNCHANGED 1 + const int mb_stride = s->mb_stride; + const int mb_width = s->mb_width; + const int mb_height= s->mb_height; + int i, depth, num_avail; + int mb_x, mb_y; + + num_avail=0; + for(i=0; imb_num; i++){ + const int mb_xy= s->mb_index2xy[ i ]; + int f=0; + int error= s->error_status_table[mb_xy]; + + if(IS_INTRA(s->current_picture.mb_type[mb_xy])) f=MV_FROZEN; //intra //FIXME check + if(!(error&MV_ERROR)) f=MV_FROZEN; //inter with undamaged MV + + fixed[mb_xy]= f; + if(f==MV_FROZEN) + num_avail++; + } + + if((!(s->avctx->error_concealment&FF_EC_GUESS_MVS)) || num_avail <= mb_width/2){ + for(mb_y=0; mb_ymb_height; mb_y++){ + for(mb_x=0; mb_xmb_width; mb_x++){ + const int mb_xy= mb_x + mb_y*s->mb_stride; + + if(IS_INTRA(s->current_picture.mb_type[mb_xy])) continue; + if(!(s->error_status_table[mb_xy]&MV_ERROR)) continue; + + s->mv_dir = MV_DIR_FORWARD; + s->mb_intra=0; + s->mv_type = MV_TYPE_16X16; + s->mb_skiped=0; + + s->dsp.clear_blocks(s->block[0]); + + s->mb_x= mb_x; + s->mb_y= mb_y; + s->mv[0][0][0]= 0; + s->mv[0][0][1]= 0; + decode_mb(s); + } + } + return; + } + + for(depth=0;; depth++){ + int changed, pass, none_left; + + none_left=1; + changed=1; + for(pass=0; (changed || pass<2) && pass<10; pass++){ + int mb_x, mb_y; +int score_sum=0; + + changed=0; + for(mb_y=0; mb_ymb_height; mb_y++){ + for(mb_x=0; mb_xmb_width; mb_x++){ + const int mb_xy= mb_x + mb_y*s->mb_stride; + int mv_predictor[8][2]={{0}}; + int pred_count=0; + int j; + int best_score=256*256*256*64; + int best_pred=0; + const int mot_stride= mb_width*2+2; + const int mot_index= mb_x*2 + 1 + (mb_y*2+1)*mot_stride; + int prev_x= s->motion_val[mot_index][0]; + int prev_y= s->motion_val[mot_index][1]; + + if((mb_x^mb_y^pass)&1) continue; + + if(fixed[mb_xy]==MV_FROZEN) continue; + assert(!IS_INTRA(s->current_picture.mb_type[mb_xy])); + assert(s->last_picture_ptr && s->last_picture_ptr->data[0]); + + j=0; + if(mb_x>0 && fixed[mb_xy-1 ]==MV_FROZEN) j=1; + if(mb_x+10 && fixed[mb_xy-mb_stride]==MV_FROZEN) j=1; + if(mb_y+10 && fixed[mb_xy-1 ]==MV_CHANGED) j=1; + if(mb_x+10 && fixed[mb_xy-mb_stride]==MV_CHANGED) j=1; + if(mb_y+11) continue; + + none_left=0; + + if(mb_x>0 && fixed[mb_xy-1]){ + mv_predictor[pred_count][0]= s->motion_val[mot_index - 2][0]; + mv_predictor[pred_count][1]= s->motion_val[mot_index - 2][1]; + pred_count++; + } + if(mb_x+1motion_val[mot_index + 2][0]; + mv_predictor[pred_count][1]= s->motion_val[mot_index + 2][1]; + pred_count++; + } + if(mb_y>0 && fixed[mb_xy-mb_stride]){ + mv_predictor[pred_count][0]= s->motion_val[mot_index - mot_stride*2][0]; + mv_predictor[pred_count][1]= s->motion_val[mot_index - mot_stride*2][1]; + pred_count++; + } + if(mb_y+1motion_val[mot_index + mot_stride*2][0]; + mv_predictor[pred_count][1]= s->motion_val[mot_index + mot_stride*2][1]; + pred_count++; + } + if(pred_count==0) continue; + + if(pred_count>1){ + int sum_x=0, sum_y=0; + int max_x, max_y, min_x, min_y; + + for(j=0; j=3){ + min_y= min_x= 99999; + max_y= max_x=-99999; + }else{ + min_x=min_y=max_x=max_y=0; + } + for(j=0; jmotion_val[mot_index][0]; + mv_predictor[pred_count][1]= s->motion_val[mot_index][1]; + pred_count++; + + s->mv_dir = MV_DIR_FORWARD; + s->mb_intra=0; + s->mv_type = MV_TYPE_16X16; + s->mb_skiped=0; + + s->dsp.clear_blocks(s->block[0]); + + s->mb_x= mb_x; + s->mb_y= mb_y; + + for(j=0; jcurrent_picture.data[0] + mb_x*16 + mb_y*16*s->linesize; + + s->motion_val[mot_index][0]= s->mv[0][0][0]= mv_predictor[j][0]; + s->motion_val[mot_index][1]= s->mv[0][0][1]= mv_predictor[j][1]; + + decode_mb(s); + + if(mb_x>0 && fixed[mb_xy-1]){ + int k; + for(k=0; k<16; k++) + score += ABS(src[k*s->linesize-1 ]-src[k*s->linesize ]); + } + if(mb_x+1linesize+15]-src[k*s->linesize+16]); + } + if(mb_y>0 && fixed[mb_xy-mb_stride]){ + int k; + for(k=0; k<16; k++) + score += ABS(src[k-s->linesize ]-src[k ]); + } + if(mb_y+1linesize*15]-src[k+s->linesize*16]); + } + + if(score <= best_score){ // <= will favor the last MV + best_score= score; + best_pred= j; + } + } +score_sum+= best_score; +//FIXME no need to set s->motion_val[mot_index][0] explicit + s->motion_val[mot_index][0]= s->mv[0][0][0]= mv_predictor[best_pred][0]; + s->motion_val[mot_index][1]= s->mv[0][0][1]= mv_predictor[best_pred][1]; + + decode_mb(s); + + + if(s->mv[0][0][0] != prev_x || s->mv[0][0][1] != prev_y){ + fixed[mb_xy]=MV_CHANGED; + changed++; + }else + fixed[mb_xy]=MV_UNCHANGED; + } + } + +// printf(".%d/%d", changed, score_sum); fflush(stdout); + } + + if(none_left) + return; + + for(i=0; imb_num; i++){ + int mb_xy= s->mb_index2xy[i]; + if(fixed[mb_xy]) + fixed[mb_xy]=MV_FROZEN; + } +// printf(":"); fflush(stdout); + } +} + +static int is_intra_more_likely(MpegEncContext *s){ + int is_intra_likely, i, j, undamaged_count, skip_amount, mb_x, mb_y; + + if(s->last_picture_ptr==NULL) return 1; //no previous frame available -> use spatial prediction + + undamaged_count=0; + for(i=0; imb_num; i++){ + const int mb_xy= s->mb_index2xy[i]; + const int error= s->error_status_table[mb_xy]; + if(!((error&DC_ERROR) && (error&MV_ERROR))) + undamaged_count++; + } + + if(undamaged_count < 5) return 0; //allmost all MBs damaged -> use temporal prediction + + skip_amount= FFMAX(undamaged_count/50, 1); //check only upto 50 MBs + is_intra_likely=0; + + j=0; + for(mb_y= 0; mb_ymb_height-1; mb_y++){ + for(mb_x= 0; mb_xmb_width; mb_x++){ + int error; + const int mb_xy= mb_x + mb_y*s->mb_stride; + + error= s->error_status_table[mb_xy]; + if((error&DC_ERROR) && (error&MV_ERROR)) + continue; //skip damaged + + j++; + if((j%skip_amount) != 0) continue; //skip a few to speed things up + + if(s->pict_type==I_TYPE){ + uint8_t *mb_ptr = s->current_picture.data[0] + mb_x*16 + mb_y*16*s->linesize; + uint8_t *last_mb_ptr= s->last_picture.data [0] + mb_x*16 + mb_y*16*s->linesize; + + is_intra_likely += s->dsp.pix_abs16x16(last_mb_ptr, mb_ptr , s->linesize); + is_intra_likely -= s->dsp.pix_abs16x16(last_mb_ptr, last_mb_ptr+s->linesize*16, s->linesize); + }else{ + if(IS_INTRA(s->current_picture.mb_type[mb_xy])) + is_intra_likely++; + else + is_intra_likely--; + } + } + } +//printf("is_intra_likely: %d type:%d\n", is_intra_likely, s->pict_type); + return is_intra_likely > 0; +} + +void ff_er_frame_start(MpegEncContext *s){ + if(!s->error_resilience) return; + + memset(s->error_status_table, MV_ERROR|AC_ERROR|DC_ERROR|VP_START|AC_END|DC_END|MV_END, s->mb_stride*s->mb_height*sizeof(uint8_t)); + s->error_count= 3*s->mb_num; +} + +/** + * adds a slice. + * @param endx x component of the last macroblock, can be -1 for the last of the previous line + * @param status the status at the end (MV_END, AC_ERROR, ...), it is assumed that no earlier end or + * error of the same type occured + */ +void ff_er_add_slice(MpegEncContext *s, int startx, int starty, int endx, int endy, int status){ + const int start_i= clip(startx + starty * s->mb_width , 0, s->mb_num-1); + const int end_i = clip(endx + endy * s->mb_width , 0, s->mb_num); + const int start_xy= s->mb_index2xy[start_i]; + const int end_xy = s->mb_index2xy[end_i]; + int mask= -1; + + if(!s->error_resilience) return; + + mask &= ~VP_START; + if(status & (AC_ERROR|AC_END)){ + mask &= ~(AC_ERROR|AC_END); + s->error_count -= end_i - start_i + 1; + } + if(status & (DC_ERROR|DC_END)){ + mask &= ~(DC_ERROR|DC_END); + s->error_count -= end_i - start_i + 1; + } + if(status & (MV_ERROR|MV_END)){ + mask &= ~(MV_ERROR|MV_END); + s->error_count -= end_i - start_i + 1; + } + + if(status & (AC_ERROR|DC_ERROR|MV_ERROR)) s->error_count= INT_MAX; + + if(mask == ~0x7F){ + memset(&s->error_status_table[start_xy], 0, (end_xy - start_xy) * sizeof(uint8_t)); + }else{ + int i; + for(i=start_xy; ierror_status_table[ i ] &= mask; + } + } + + if(end_i == s->mb_num) + s->error_count= INT_MAX; + else{ + s->error_status_table[end_xy] &= mask; + s->error_status_table[end_xy] |= status; + } + + s->error_status_table[start_xy] |= VP_START; + + if(start_xy > 0){ + int prev_status= s->error_status_table[ s->mb_index2xy[start_i - 1] ]; + + prev_status &= ~ VP_START; + if(prev_status != (MV_END|DC_END|AC_END)) s->error_count= INT_MAX; + } +} + +void ff_er_frame_end(MpegEncContext *s){ + int i, mb_x, mb_y, error, error_type; + int distance; + int threshold_part[4]= {100,100,100}; + int threshold= 50; + int is_intra_likely; + + if(!s->error_resilience || s->error_count==0) return; + + fprintf(stderr, "concealing errors\n"); + + if(s->motion_val == NULL){ + int size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2); + + fprintf(stderr, "Warning MVs not available\n"); + + s->motion_val= av_mallocz(size * 2 * sizeof(int16_t)); + } + + if(s->avctx->debug&FF_DEBUG_ER){ + for(mb_y=0; mb_ymb_height; mb_y++){ + for(mb_x=0; mb_xmb_width; mb_x++){ + int status= s->error_status_table[mb_x + mb_y*s->mb_stride]; + + printf("%2X ", status); + } + printf("\n"); + } + } + +#if 1 + /* handle overlapping slices */ + for(error_type=1; error_type<=3; error_type++){ + int end_ok=0; + + for(i=s->mb_num-1; i>=0; i--){ + const int mb_xy= s->mb_index2xy[i]; + int error= s->error_status_table[mb_xy]; + + if(error&(1<error_status_table[mb_xy]|= 1<partitioned_frame){ + int end_ok=0; + + for(i=s->mb_num-1; i>=0; i--){ + const int mb_xy= s->mb_index2xy[i]; + int error= s->error_status_table[mb_xy]; + + if(error&AC_END) + end_ok=0; + if((error&MV_END) || (error&DC_END) || (error&AC_ERROR)) + end_ok=1; + + if(!end_ok) + s->error_status_table[mb_xy]|= AC_ERROR; + + if(error&VP_START) + end_ok=0; + } + } +#endif + /* handle missing slices */ + if(s->error_resilience>=4){ + int end_ok=1; + + for(i=s->mb_num-2; i>=s->mb_width+100; i--){ //FIXME +100 hack + const int mb_xy= s->mb_index2xy[i]; + int error1= s->error_status_table[mb_xy ]; + int error2= s->error_status_table[s->mb_index2xy[i+1]]; + + if(error1&VP_START) + end_ok=1; + + if( error2==(VP_START|DC_ERROR|AC_ERROR|MV_ERROR|AC_END|DC_END|MV_END) + && error1!=(VP_START|DC_ERROR|AC_ERROR|MV_ERROR|AC_END|DC_END|MV_END) + && ((error1&AC_END) || (error1&DC_END) || (error1&MV_END))){ //end & uninited + end_ok=0; + } + + if(!end_ok) + s->error_status_table[mb_xy]|= DC_ERROR|AC_ERROR|MV_ERROR; + } + } + +#if 1 + /* backward mark errors */ + distance=9999999; + for(error_type=1; error_type<=3; error_type++){ + for(i=s->mb_num-1; i>=0; i--){ + const int mb_xy= s->mb_index2xy[i]; + int error= s->error_status_table[mb_xy]; + + if(!s->mbskip_table[mb_xy]) //FIXME partition specific + distance++; + if(error&(1<partitioned_frame){ + if(distance < threshold_part[error_type-1]) + s->error_status_table[mb_xy]|= 1<error_status_table[mb_xy]|= 1<mb_num; i++){ + const int mb_xy= s->mb_index2xy[i]; + int old_error= s->error_status_table[mb_xy]; + + if(old_error&VP_START) + error= old_error& (DC_ERROR|AC_ERROR|MV_ERROR); + else{ + error|= old_error& (DC_ERROR|AC_ERROR|MV_ERROR); + s->error_status_table[mb_xy]|= error; + } + } +#if 1 + /* handle not partitioned case */ + if(!s->partitioned_frame){ + for(i=0; imb_num; i++){ + const int mb_xy= s->mb_index2xy[i]; + error= s->error_status_table[mb_xy]; + if(error&(AC_ERROR|DC_ERROR|MV_ERROR)) + error|= AC_ERROR|DC_ERROR|MV_ERROR; + s->error_status_table[mb_xy]= error; + } + } +#endif + is_intra_likely= is_intra_more_likely(s); + + /* set unknown mb-type to most likely */ + for(i=0; imb_num; i++){ + const int mb_xy= s->mb_index2xy[i]; + error= s->error_status_table[mb_xy]; + if(!((error&DC_ERROR) && (error&MV_ERROR))) + continue; + + if(is_intra_likely) + s->current_picture.mb_type[mb_xy]= MB_TYPE_INTRA4x4; + else + s->current_picture.mb_type[mb_xy]= MB_TYPE_16x16 | MB_TYPE_L0; + } + + /* handle inter blocks with damaged AC */ + for(mb_y=0; mb_ymb_height; mb_y++){ + for(mb_x=0; mb_xmb_width; mb_x++){ + const int mb_xy= mb_x + mb_y * s->mb_stride; + const int mb_type= s->current_picture.mb_type[mb_xy]; + error= s->error_status_table[mb_xy]; + + if(IS_INTRA(mb_type)) continue; //intra + if(error&MV_ERROR) continue; //inter with damaged MV + if(!(error&AC_ERROR)) continue; //undamaged inter + + s->mv_dir = MV_DIR_FORWARD; + s->mb_intra=0; + s->mb_skiped=0; + if(IS_8X8(mb_type)){ + int mb_index= mb_x*2+1 + (mb_y*2+1)*s->block_wrap[0]; + int j; + s->mv_type = MV_TYPE_8X8; + for(j=0; j<4; j++){ + s->mv[0][j][0] = s->motion_val[ mb_index + (j&1) + (j>>1)*s->block_wrap[0] ][0]; + s->mv[0][j][1] = s->motion_val[ mb_index + (j&1) + (j>>1)*s->block_wrap[0] ][1]; + } + }else{ + s->mv_type = MV_TYPE_16X16; + s->mv[0][0][0] = s->motion_val[ mb_x*2+1 + (mb_y*2+1)*s->block_wrap[0] ][0]; + s->mv[0][0][1] = s->motion_val[ mb_x*2+1 + (mb_y*2+1)*s->block_wrap[0] ][1]; + } + + s->dsp.clear_blocks(s->block[0]); + + s->mb_x= mb_x; + s->mb_y= mb_y; + decode_mb(s); + } + } + + /* guess MVs */ + if(s->pict_type==B_TYPE){ + for(mb_y=0; mb_ymb_height; mb_y++){ + for(mb_x=0; mb_xmb_width; mb_x++){ + int xy= mb_x*2+1 + (mb_y*2+1)*s->block_wrap[0]; + const int mb_xy= mb_x + mb_y * s->mb_stride; + const int mb_type= s->current_picture.mb_type[mb_xy]; + error= s->error_status_table[mb_xy]; + + if(IS_INTRA(mb_type)) continue; + if(!(error&MV_ERROR)) continue; //inter with undamaged MV + if(!(error&AC_ERROR)) continue; //undamaged inter + + s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD; + s->mb_intra=0; + s->mv_type = MV_TYPE_16X16; + s->mb_skiped=0; + + if(s->pp_time){ + int time_pp= s->pp_time; + int time_pb= s->pb_time; + + s->mv[0][0][0] = s->motion_val[xy][0]*time_pb/time_pp; + s->mv[0][0][1] = s->motion_val[xy][1]*time_pb/time_pp; + s->mv[1][0][0] = s->motion_val[xy][0]*(time_pb - time_pp)/time_pp; + s->mv[1][0][1] = s->motion_val[xy][1]*(time_pb - time_pp)/time_pp; + }else{ + s->mv[0][0][0]= 0; + s->mv[0][0][1]= 0; + s->mv[1][0][0]= 0; + s->mv[1][0][1]= 0; + } + + s->dsp.clear_blocks(s->block[0]); + s->mb_x= mb_x; + s->mb_y= mb_y; + decode_mb(s); + } + } + }else + guess_mv(s); + +#ifdef HAVE_XVMC + /* the filters below are not XvMC compatible, skip them */ + if(s->avctx->xvmc_acceleration) goto ec_clean; +#endif + /* fill DC for inter blocks */ + for(mb_y=0; mb_ymb_height; mb_y++){ + for(mb_x=0; mb_xmb_width; mb_x++){ + int dc, dcu, dcv, y, n; + int16_t *dc_ptr; + uint8_t *dest_y, *dest_cb, *dest_cr; + const int mb_xy= mb_x + mb_y * s->mb_stride; + const int mb_type= s->current_picture.mb_type[mb_xy]; + + error= s->error_status_table[mb_xy]; + + if(IS_INTRA(mb_type) && s->partitioned_frame) continue; +// if(error&MV_ERROR) continue; //inter data damaged FIXME is this good? + + 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; + + dc_ptr= &s->dc_val[0][mb_x*2+1 + (mb_y*2+1)*(s->mb_width*2+2)]; + for(n=0; n<4; n++){ + dc=0; + for(y=0; y<8; y++){ + int x; + for(x=0; x<8; x++){ + dc+= dest_y[x + (n&1)*8 + (y + (n>>1)*8)*s->linesize]; + } + } + dc_ptr[(n&1) + (n>>1)*(s->mb_width*2+2)]= (dc+4)>>3; + } + + dcu=dcv=0; + for(y=0; y<8; y++){ + int x; + for(x=0; x<8; x++){ + dcu+=dest_cb[x + y*(s->uvlinesize)]; + dcv+=dest_cr[x + y*(s->uvlinesize)]; + } + } + s->dc_val[1][mb_x+1 + (mb_y+1)*(s->mb_width+2)]= (dcu+4)>>3; + s->dc_val[2][mb_x+1 + (mb_y+1)*(s->mb_width+2)]= (dcv+4)>>3; + } + } +#if 1 + /* guess DC for damaged blocks */ + guess_dc(s, s->dc_val[0] + s->mb_width*2+3, s->mb_width*2, s->mb_height*2, s->mb_width*2+2, 1); + guess_dc(s, s->dc_val[1] + s->mb_width +3, s->mb_width , s->mb_height , s->mb_width +2, 0); + guess_dc(s, s->dc_val[2] + s->mb_width +3, s->mb_width , s->mb_height , s->mb_width +2, 0); +#endif + /* filter luma DC */ + filter181(s->dc_val[0] + s->mb_width*2+3, s->mb_width*2, s->mb_height*2, s->mb_width*2+2); + +#if 1 + /* render DC only intra */ + for(mb_y=0; mb_ymb_height; mb_y++){ + for(mb_x=0; mb_xmb_width; mb_x++){ + uint8_t *dest_y, *dest_cb, *dest_cr; + const int mb_xy= mb_x + mb_y * s->mb_stride; + 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); + } + +#ifdef HAVE_XVMC +ec_clean: +#endif + /* clean a few tables */ + for(i=0; imb_num; i++){ + const int mb_xy= s->mb_index2xy[i]; + int error= s->error_status_table[mb_xy]; + + if(s->pict_type!=B_TYPE && (error&(DC_ERROR|MV_ERROR|AC_ERROR))){ + s->mbskip_table[mb_xy]=0; + } + s->mbintra_table[mb_xy]=1; + } +}