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00028 #include <limits.h>
00029
00030 #include "avcodec.h"
00031 #include "dsputil.h"
00032 #include "mpegvideo.h"
00033
00034 static void decode_mb(MpegEncContext *s){
00035 s->dest[0] = s->current_picture.data[0] + (s->mb_y * 16* s->linesize ) + s->mb_x * 16;
00036 s->dest[1] = s->current_picture.data[1] + (s->mb_y * 8 * s->uvlinesize) + s->mb_x * 8;
00037 s->dest[2] = s->current_picture.data[2] + (s->mb_y * 8 * s->uvlinesize) + s->mb_x * 8;
00038
00039 MPV_decode_mb(s, s->block);
00040 }
00041
00045 static void put_dc(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int mb_x, int mb_y)
00046 {
00047 int dc, dcu, dcv, y, i;
00048 for(i=0; i<4; i++){
00049 dc= s->dc_val[0][mb_x*2 + (i&1) + (mb_y*2 + (i>>1))*s->b8_stride];
00050 if(dc<0) dc=0;
00051 else if(dc>2040) dc=2040;
00052 for(y=0; y<8; y++){
00053 int x;
00054 for(x=0; x<8; x++){
00055 dest_y[x + (i&1)*8 + (y + (i>>1)*8)*s->linesize]= dc/8;
00056 }
00057 }
00058 }
00059 dcu = s->dc_val[1][mb_x + mb_y*s->mb_stride];
00060 dcv = s->dc_val[2][mb_x + mb_y*s->mb_stride];
00061 if (dcu<0 ) dcu=0;
00062 else if(dcu>2040) dcu=2040;
00063 if (dcv<0 ) dcv=0;
00064 else if(dcv>2040) dcv=2040;
00065 for(y=0; y<8; y++){
00066 int x;
00067 for(x=0; x<8; x++){
00068 dest_cb[x + y*(s->uvlinesize)]= dcu/8;
00069 dest_cr[x + y*(s->uvlinesize)]= dcv/8;
00070 }
00071 }
00072 }
00073
00074 static void filter181(int16_t *data, int width, int height, int stride){
00075 int x,y;
00076
00077
00078 for(y=1; y<height-1; y++){
00079 int prev_dc= data[0 + y*stride];
00080
00081 for(x=1; x<width-1; x++){
00082 int dc;
00083
00084 dc= - prev_dc
00085 + data[x + y*stride]*8
00086 - data[x + 1 + y*stride];
00087 dc= (dc*10923 + 32768)>>16;
00088 prev_dc= data[x + y*stride];
00089 data[x + y*stride]= dc;
00090 }
00091 }
00092
00093
00094 for(x=1; x<width-1; x++){
00095 int prev_dc= data[x];
00096
00097 for(y=1; y<height-1; y++){
00098 int dc;
00099
00100 dc= - prev_dc
00101 + data[x + y *stride]*8
00102 - data[x + (y+1)*stride];
00103 dc= (dc*10923 + 32768)>>16;
00104 prev_dc= data[x + y*stride];
00105 data[x + y*stride]= dc;
00106 }
00107 }
00108 }
00109
00115 static void guess_dc(MpegEncContext *s, int16_t *dc, int w, int h, int stride, int is_luma){
00116 int b_x, b_y;
00117
00118 for(b_y=0; b_y<h; b_y++){
00119 for(b_x=0; b_x<w; b_x++){
00120 int color[4]={1024,1024,1024,1024};
00121 int distance[4]={9999,9999,9999,9999};
00122 int mb_index, error, j;
00123 int64_t guess, weight_sum;
00124
00125 mb_index= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
00126
00127 error= s->error_status_table[mb_index];
00128
00129 if(IS_INTER(s->current_picture.mb_type[mb_index])) continue;
00130 if(!(error&DC_ERROR)) continue;
00131
00132
00133 for(j=b_x+1; j<w; j++){
00134 int mb_index_j= (j>>is_luma) + (b_y>>is_luma)*s->mb_stride;
00135 int error_j= s->error_status_table[mb_index_j];
00136 int intra_j= IS_INTRA(s->current_picture.mb_type[mb_index_j]);
00137 if(intra_j==0 || !(error_j&DC_ERROR)){
00138 color[0]= dc[j + b_y*stride];
00139 distance[0]= j-b_x;
00140 break;
00141 }
00142 }
00143
00144
00145 for(j=b_x-1; j>=0; j--){
00146 int mb_index_j= (j>>is_luma) + (b_y>>is_luma)*s->mb_stride;
00147 int error_j= s->error_status_table[mb_index_j];
00148 int intra_j= IS_INTRA(s->current_picture.mb_type[mb_index_j]);
00149 if(intra_j==0 || !(error_j&DC_ERROR)){
00150 color[1]= dc[j + b_y*stride];
00151 distance[1]= b_x-j;
00152 break;
00153 }
00154 }
00155
00156
00157 for(j=b_y+1; j<h; j++){
00158 int mb_index_j= (b_x>>is_luma) + (j>>is_luma)*s->mb_stride;
00159 int error_j= s->error_status_table[mb_index_j];
00160 int intra_j= IS_INTRA(s->current_picture.mb_type[mb_index_j]);
00161 if(intra_j==0 || !(error_j&DC_ERROR)){
00162 color[2]= dc[b_x + j*stride];
00163 distance[2]= j-b_y;
00164 break;
00165 }
00166 }
00167
00168
00169 for(j=b_y-1; j>=0; j--){
00170 int mb_index_j= (b_x>>is_luma) + (j>>is_luma)*s->mb_stride;
00171 int error_j= s->error_status_table[mb_index_j];
00172 int intra_j= IS_INTRA(s->current_picture.mb_type[mb_index_j]);
00173 if(intra_j==0 || !(error_j&DC_ERROR)){
00174 color[3]= dc[b_x + j*stride];
00175 distance[3]= b_y-j;
00176 break;
00177 }
00178 }
00179
00180 weight_sum=0;
00181 guess=0;
00182 for(j=0; j<4; j++){
00183 int64_t weight= 256*256*256*16/distance[j];
00184 guess+= weight*(int64_t)color[j];
00185 weight_sum+= weight;
00186 }
00187 guess= (guess + weight_sum/2) / weight_sum;
00188
00189 dc[b_x + b_y*stride]= guess;
00190 }
00191 }
00192 }
00193
00199 static void h_block_filter(MpegEncContext *s, uint8_t *dst, int w, int h, int stride, int is_luma){
00200 int b_x, b_y;
00201 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
00202
00203 for(b_y=0; b_y<h; b_y++){
00204 for(b_x=0; b_x<w-1; b_x++){
00205 int y;
00206 int left_status = s->error_status_table[( b_x >>is_luma) + (b_y>>is_luma)*s->mb_stride];
00207 int right_status= s->error_status_table[((b_x+1)>>is_luma) + (b_y>>is_luma)*s->mb_stride];
00208 int left_intra= IS_INTRA(s->current_picture.mb_type [( b_x >>is_luma) + (b_y>>is_luma)*s->mb_stride]);
00209 int right_intra= IS_INTRA(s->current_picture.mb_type [((b_x+1)>>is_luma) + (b_y>>is_luma)*s->mb_stride]);
00210 int left_damage = left_status&(DC_ERROR|AC_ERROR|MV_ERROR);
00211 int right_damage= right_status&(DC_ERROR|AC_ERROR|MV_ERROR);
00212 int offset= b_x*8 + b_y*stride*8;
00213 int16_t *left_mv= s->current_picture.motion_val[0][s->b8_stride*(b_y<<(1-is_luma)) + ( b_x <<(1-is_luma))];
00214 int16_t *right_mv= s->current_picture.motion_val[0][s->b8_stride*(b_y<<(1-is_luma)) + ((b_x+1)<<(1-is_luma))];
00215
00216 if(!(left_damage||right_damage)) continue;
00217
00218 if( (!left_intra) && (!right_intra)
00219 && FFABS(left_mv[0]-right_mv[0]) + FFABS(left_mv[1]+right_mv[1]) < 2) continue;
00220
00221 for(y=0; y<8; y++){
00222 int a,b,c,d;
00223
00224 a= dst[offset + 7 + y*stride] - dst[offset + 6 + y*stride];
00225 b= dst[offset + 8 + y*stride] - dst[offset + 7 + y*stride];
00226 c= dst[offset + 9 + y*stride] - dst[offset + 8 + y*stride];
00227
00228 d= FFABS(b) - ((FFABS(a) + FFABS(c) + 1)>>1);
00229 d= FFMAX(d, 0);
00230 if(b<0) d= -d;
00231
00232 if(d==0) continue;
00233
00234 if(!(left_damage && right_damage))
00235 d= d*16/9;
00236
00237 if(left_damage){
00238 dst[offset + 7 + y*stride] = cm[dst[offset + 7 + y*stride] + ((d*7)>>4)];
00239 dst[offset + 6 + y*stride] = cm[dst[offset + 6 + y*stride] + ((d*5)>>4)];
00240 dst[offset + 5 + y*stride] = cm[dst[offset + 5 + y*stride] + ((d*3)>>4)];
00241 dst[offset + 4 + y*stride] = cm[dst[offset + 4 + y*stride] + ((d*1)>>4)];
00242 }
00243 if(right_damage){
00244 dst[offset + 8 + y*stride] = cm[dst[offset + 8 + y*stride] - ((d*7)>>4)];
00245 dst[offset + 9 + y*stride] = cm[dst[offset + 9 + y*stride] - ((d*5)>>4)];
00246 dst[offset + 10+ y*stride] = cm[dst[offset +10 + y*stride] - ((d*3)>>4)];
00247 dst[offset + 11+ y*stride] = cm[dst[offset +11 + y*stride] - ((d*1)>>4)];
00248 }
00249 }
00250 }
00251 }
00252 }
00253
00259 static void v_block_filter(MpegEncContext *s, uint8_t *dst, int w, int h, int stride, int is_luma){
00260 int b_x, b_y;
00261 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
00262
00263 for(b_y=0; b_y<h-1; b_y++){
00264 for(b_x=0; b_x<w; b_x++){
00265 int x;
00266 int top_status = s->error_status_table[(b_x>>is_luma) + ( b_y >>is_luma)*s->mb_stride];
00267 int bottom_status= s->error_status_table[(b_x>>is_luma) + ((b_y+1)>>is_luma)*s->mb_stride];
00268 int top_intra= IS_INTRA(s->current_picture.mb_type [(b_x>>is_luma) + ( b_y >>is_luma)*s->mb_stride]);
00269 int bottom_intra= IS_INTRA(s->current_picture.mb_type [(b_x>>is_luma) + ((b_y+1)>>is_luma)*s->mb_stride]);
00270 int top_damage = top_status&(DC_ERROR|AC_ERROR|MV_ERROR);
00271 int bottom_damage= bottom_status&(DC_ERROR|AC_ERROR|MV_ERROR);
00272 int offset= b_x*8 + b_y*stride*8;
00273 int16_t *top_mv= s->current_picture.motion_val[0][s->b8_stride*( b_y <<(1-is_luma)) + (b_x<<(1-is_luma))];
00274 int16_t *bottom_mv= s->current_picture.motion_val[0][s->b8_stride*((b_y+1)<<(1-is_luma)) + (b_x<<(1-is_luma))];
00275
00276 if(!(top_damage||bottom_damage)) continue;
00277
00278 if( (!top_intra) && (!bottom_intra)
00279 && FFABS(top_mv[0]-bottom_mv[0]) + FFABS(top_mv[1]+bottom_mv[1]) < 2) continue;
00280
00281 for(x=0; x<8; x++){
00282 int a,b,c,d;
00283
00284 a= dst[offset + x + 7*stride] - dst[offset + x + 6*stride];
00285 b= dst[offset + x + 8*stride] - dst[offset + x + 7*stride];
00286 c= dst[offset + x + 9*stride] - dst[offset + x + 8*stride];
00287
00288 d= FFABS(b) - ((FFABS(a) + FFABS(c)+1)>>1);
00289 d= FFMAX(d, 0);
00290 if(b<0) d= -d;
00291
00292 if(d==0) continue;
00293
00294 if(!(top_damage && bottom_damage))
00295 d= d*16/9;
00296
00297 if(top_damage){
00298 dst[offset + x + 7*stride] = cm[dst[offset + x + 7*stride] + ((d*7)>>4)];
00299 dst[offset + x + 6*stride] = cm[dst[offset + x + 6*stride] + ((d*5)>>4)];
00300 dst[offset + x + 5*stride] = cm[dst[offset + x + 5*stride] + ((d*3)>>4)];
00301 dst[offset + x + 4*stride] = cm[dst[offset + x + 4*stride] + ((d*1)>>4)];
00302 }
00303 if(bottom_damage){
00304 dst[offset + x + 8*stride] = cm[dst[offset + x + 8*stride] - ((d*7)>>4)];
00305 dst[offset + x + 9*stride] = cm[dst[offset + x + 9*stride] - ((d*5)>>4)];
00306 dst[offset + x + 10*stride] = cm[dst[offset + x + 10*stride] - ((d*3)>>4)];
00307 dst[offset + x + 11*stride] = cm[dst[offset + x + 11*stride] - ((d*1)>>4)];
00308 }
00309 }
00310 }
00311 }
00312 }
00313
00314 static void guess_mv(MpegEncContext *s){
00315 uint8_t fixed[s->mb_stride * s->mb_height];
00316 #define MV_FROZEN 3
00317 #define MV_CHANGED 2
00318 #define MV_UNCHANGED 1
00319 const int mb_stride = s->mb_stride;
00320 const int mb_width = s->mb_width;
00321 const int mb_height= s->mb_height;
00322 int i, depth, num_avail;
00323 int mb_x, mb_y;
00324
00325 num_avail=0;
00326 for(i=0; i<s->mb_num; i++){
00327 const int mb_xy= s->mb_index2xy[ i ];
00328 int f=0;
00329 int error= s->error_status_table[mb_xy];
00330
00331 if(IS_INTRA(s->current_picture.mb_type[mb_xy])) f=MV_FROZEN;
00332 if(!(error&MV_ERROR)) f=MV_FROZEN;
00333
00334 fixed[mb_xy]= f;
00335 if(f==MV_FROZEN)
00336 num_avail++;
00337 }
00338
00339 if((!(s->avctx->error_concealment&FF_EC_GUESS_MVS)) || num_avail <= mb_width/2){
00340 for(mb_y=0; mb_y<s->mb_height; mb_y++){
00341 for(mb_x=0; mb_x<s->mb_width; mb_x++){
00342 const int mb_xy= mb_x + mb_y*s->mb_stride;
00343
00344 if(IS_INTRA(s->current_picture.mb_type[mb_xy])) continue;
00345 if(!(s->error_status_table[mb_xy]&MV_ERROR)) continue;
00346
00347 s->mv_dir = MV_DIR_FORWARD;
00348 s->mb_intra=0;
00349 s->mv_type = MV_TYPE_16X16;
00350 s->mb_skipped=0;
00351
00352 s->dsp.clear_blocks(s->block[0]);
00353
00354 s->mb_x= mb_x;
00355 s->mb_y= mb_y;
00356 s->mv[0][0][0]= 0;
00357 s->mv[0][0][1]= 0;
00358 decode_mb(s);
00359 }
00360 }
00361 return;
00362 }
00363
00364 for(depth=0;; depth++){
00365 int changed, pass, none_left;
00366
00367 none_left=1;
00368 changed=1;
00369 for(pass=0; (changed || pass<2) && pass<10; pass++){
00370 int mb_x, mb_y;
00371 int score_sum=0;
00372
00373 changed=0;
00374 for(mb_y=0; mb_y<s->mb_height; mb_y++){
00375 for(mb_x=0; mb_x<s->mb_width; mb_x++){
00376 const int mb_xy= mb_x + mb_y*s->mb_stride;
00377 int mv_predictor[8][2]={{0}};
00378 int pred_count=0;
00379 int j;
00380 int best_score=256*256*256*64;
00381 int best_pred=0;
00382 const int mot_stride= s->b8_stride;
00383 const int mot_index= mb_x*2 + mb_y*2*mot_stride;
00384 int prev_x= s->current_picture.motion_val[0][mot_index][0];
00385 int prev_y= s->current_picture.motion_val[0][mot_index][1];
00386
00387 if((mb_x^mb_y^pass)&1) continue;
00388
00389 if(fixed[mb_xy]==MV_FROZEN) continue;
00390 assert(!IS_INTRA(s->current_picture.mb_type[mb_xy]));
00391 assert(s->last_picture_ptr && s->last_picture_ptr->data[0]);
00392
00393 j=0;
00394 if(mb_x>0 && fixed[mb_xy-1 ]==MV_FROZEN) j=1;
00395 if(mb_x+1<mb_width && fixed[mb_xy+1 ]==MV_FROZEN) j=1;
00396 if(mb_y>0 && fixed[mb_xy-mb_stride]==MV_FROZEN) j=1;
00397 if(mb_y+1<mb_height && fixed[mb_xy+mb_stride]==MV_FROZEN) j=1;
00398 if(j==0) continue;
00399
00400 j=0;
00401 if(mb_x>0 && fixed[mb_xy-1 ]==MV_CHANGED) j=1;
00402 if(mb_x+1<mb_width && fixed[mb_xy+1 ]==MV_CHANGED) j=1;
00403 if(mb_y>0 && fixed[mb_xy-mb_stride]==MV_CHANGED) j=1;
00404 if(mb_y+1<mb_height && fixed[mb_xy+mb_stride]==MV_CHANGED) j=1;
00405 if(j==0 && pass>1) continue;
00406
00407 none_left=0;
00408
00409 if(mb_x>0 && fixed[mb_xy-1]){
00410 mv_predictor[pred_count][0]= s->current_picture.motion_val[0][mot_index - 2][0];
00411 mv_predictor[pred_count][1]= s->current_picture.motion_val[0][mot_index - 2][1];
00412 pred_count++;
00413 }
00414 if(mb_x+1<mb_width && fixed[mb_xy+1]){
00415 mv_predictor[pred_count][0]= s->current_picture.motion_val[0][mot_index + 2][0];
00416 mv_predictor[pred_count][1]= s->current_picture.motion_val[0][mot_index + 2][1];
00417 pred_count++;
00418 }
00419 if(mb_y>0 && fixed[mb_xy-mb_stride]){
00420 mv_predictor[pred_count][0]= s->current_picture.motion_val[0][mot_index - mot_stride*2][0];
00421 mv_predictor[pred_count][1]= s->current_picture.motion_val[0][mot_index - mot_stride*2][1];
00422 pred_count++;
00423 }
00424 if(mb_y+1<mb_height && fixed[mb_xy+mb_stride]){
00425 mv_predictor[pred_count][0]= s->current_picture.motion_val[0][mot_index + mot_stride*2][0];
00426 mv_predictor[pred_count][1]= s->current_picture.motion_val[0][mot_index + mot_stride*2][1];
00427 pred_count++;
00428 }
00429 if(pred_count==0) continue;
00430
00431 if(pred_count>1){
00432 int sum_x=0, sum_y=0;
00433 int max_x, max_y, min_x, min_y;
00434
00435 for(j=0; j<pred_count; j++){
00436 sum_x+= mv_predictor[j][0];
00437 sum_y+= mv_predictor[j][1];
00438 }
00439
00440
00441 mv_predictor[pred_count][0] = sum_x/j;
00442 mv_predictor[pred_count][1] = sum_y/j;
00443
00444
00445 if(pred_count>=3){
00446 min_y= min_x= 99999;
00447 max_y= max_x=-99999;
00448 }else{
00449 min_x=min_y=max_x=max_y=0;
00450 }
00451 for(j=0; j<pred_count; j++){
00452 max_x= FFMAX(max_x, mv_predictor[j][0]);
00453 max_y= FFMAX(max_y, mv_predictor[j][1]);
00454 min_x= FFMIN(min_x, mv_predictor[j][0]);
00455 min_y= FFMIN(min_y, mv_predictor[j][1]);
00456 }
00457 mv_predictor[pred_count+1][0] = sum_x - max_x - min_x;
00458 mv_predictor[pred_count+1][1] = sum_y - max_y - min_y;
00459
00460 if(pred_count==4){
00461 mv_predictor[pred_count+1][0] /= 2;
00462 mv_predictor[pred_count+1][1] /= 2;
00463 }
00464 pred_count+=2;
00465 }
00466
00467
00468 pred_count++;
00469
00470
00471 mv_predictor[pred_count][0]= s->current_picture.motion_val[0][mot_index][0];
00472 mv_predictor[pred_count][1]= s->current_picture.motion_val[0][mot_index][1];
00473 pred_count++;
00474
00475 s->mv_dir = MV_DIR_FORWARD;
00476 s->mb_intra=0;
00477 s->mv_type = MV_TYPE_16X16;
00478 s->mb_skipped=0;
00479
00480 s->dsp.clear_blocks(s->block[0]);
00481
00482 s->mb_x= mb_x;
00483 s->mb_y= mb_y;
00484
00485 for(j=0; j<pred_count; j++){
00486 int score=0;
00487 uint8_t *src= s->current_picture.data[0] + mb_x*16 + mb_y*16*s->linesize;
00488
00489 s->current_picture.motion_val[0][mot_index][0]= s->mv[0][0][0]= mv_predictor[j][0];
00490 s->current_picture.motion_val[0][mot_index][1]= s->mv[0][0][1]= mv_predictor[j][1];
00491
00492 decode_mb(s);
00493
00494 if(mb_x>0 && fixed[mb_xy-1]){
00495 int k;
00496 for(k=0; k<16; k++)
00497 score += FFABS(src[k*s->linesize-1 ]-src[k*s->linesize ]);
00498 }
00499 if(mb_x+1<mb_width && fixed[mb_xy+1]){
00500 int k;
00501 for(k=0; k<16; k++)
00502 score += FFABS(src[k*s->linesize+15]-src[k*s->linesize+16]);
00503 }
00504 if(mb_y>0 && fixed[mb_xy-mb_stride]){
00505 int k;
00506 for(k=0; k<16; k++)
00507 score += FFABS(src[k-s->linesize ]-src[k ]);
00508 }
00509 if(mb_y+1<mb_height && fixed[mb_xy+mb_stride]){
00510 int k;
00511 for(k=0; k<16; k++)
00512 score += FFABS(src[k+s->linesize*15]-src[k+s->linesize*16]);
00513 }
00514
00515 if(score <= best_score){
00516 best_score= score;
00517 best_pred= j;
00518 }
00519 }
00520 score_sum+= best_score;
00521
00522 s->current_picture.motion_val[0][mot_index][0]= s->mv[0][0][0]= mv_predictor[best_pred][0];
00523 s->current_picture.motion_val[0][mot_index][1]= s->mv[0][0][1]= mv_predictor[best_pred][1];
00524
00525 decode_mb(s);
00526
00527
00528 if(s->mv[0][0][0] != prev_x || s->mv[0][0][1] != prev_y){
00529 fixed[mb_xy]=MV_CHANGED;
00530 changed++;
00531 }else
00532 fixed[mb_xy]=MV_UNCHANGED;
00533 }
00534 }
00535
00536
00537 }
00538
00539 if(none_left)
00540 return;
00541
00542 for(i=0; i<s->mb_num; i++){
00543 int mb_xy= s->mb_index2xy[i];
00544 if(fixed[mb_xy])
00545 fixed[mb_xy]=MV_FROZEN;
00546 }
00547
00548 }
00549 }
00550
00551 static int is_intra_more_likely(MpegEncContext *s){
00552 int is_intra_likely, i, j, undamaged_count, skip_amount, mb_x, mb_y;
00553
00554 if(s->last_picture_ptr==NULL) return 1;
00555
00556 undamaged_count=0;
00557 for(i=0; i<s->mb_num; i++){
00558 const int mb_xy= s->mb_index2xy[i];
00559 const int error= s->error_status_table[mb_xy];
00560 if(!((error&DC_ERROR) && (error&MV_ERROR)))
00561 undamaged_count++;
00562 }
00563
00564 if(undamaged_count < 5) return 0;
00565
00566 #ifdef HAVE_XVMC
00567
00568 if(s->avctx->xvmc_acceleration && s->pict_type==I_TYPE) return 1;
00569 #endif
00570
00571 skip_amount= FFMAX(undamaged_count/50, 1);
00572 is_intra_likely=0;
00573
00574 j=0;
00575 for(mb_y= 0; mb_y<s->mb_height-1; mb_y++){
00576 for(mb_x= 0; mb_x<s->mb_width; mb_x++){
00577 int error;
00578 const int mb_xy= mb_x + mb_y*s->mb_stride;
00579
00580 error= s->error_status_table[mb_xy];
00581 if((error&DC_ERROR) && (error&MV_ERROR))
00582 continue;
00583
00584 j++;
00585 if((j%skip_amount) != 0) continue;
00586
00587 if(s->pict_type==I_TYPE){
00588 uint8_t *mb_ptr = s->current_picture.data[0] + mb_x*16 + mb_y*16*s->linesize;
00589 uint8_t *last_mb_ptr= s->last_picture.data [0] + mb_x*16 + mb_y*16*s->linesize;
00590
00591 is_intra_likely += s->dsp.sad[0](NULL, last_mb_ptr, mb_ptr , s->linesize, 16);
00592 is_intra_likely -= s->dsp.sad[0](NULL, last_mb_ptr, last_mb_ptr+s->linesize*16, s->linesize, 16);
00593 }else{
00594 if(IS_INTRA(s->current_picture.mb_type[mb_xy]))
00595 is_intra_likely++;
00596 else
00597 is_intra_likely--;
00598 }
00599 }
00600 }
00601
00602 return is_intra_likely > 0;
00603 }
00604
00605 void ff_er_frame_start(MpegEncContext *s){
00606 if(!s->error_resilience) return;
00607
00608 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));
00609 s->error_count= 3*s->mb_num;
00610 }
00611
00618 void ff_er_add_slice(MpegEncContext *s, int startx, int starty, int endx, int endy, int status){
00619 const int start_i= av_clip(startx + starty * s->mb_width , 0, s->mb_num-1);
00620 const int end_i = av_clip(endx + endy * s->mb_width , 0, s->mb_num);
00621 const int start_xy= s->mb_index2xy[start_i];
00622 const int end_xy = s->mb_index2xy[end_i];
00623 int mask= -1;
00624
00625 if(start_i > end_i || start_xy > end_xy){
00626 av_log(s->avctx, AV_LOG_ERROR, "internal error, slice end before start\n");
00627 return;
00628 }
00629
00630 if(!s->error_resilience) return;
00631
00632 mask &= ~VP_START;
00633 if(status & (AC_ERROR|AC_END)){
00634 mask &= ~(AC_ERROR|AC_END);
00635 s->error_count -= end_i - start_i + 1;
00636 }
00637 if(status & (DC_ERROR|DC_END)){
00638 mask &= ~(DC_ERROR|DC_END);
00639 s->error_count -= end_i - start_i + 1;
00640 }
00641 if(status & (MV_ERROR|MV_END)){
00642 mask &= ~(MV_ERROR|MV_END);
00643 s->error_count -= end_i - start_i + 1;
00644 }
00645
00646 if(status & (AC_ERROR|DC_ERROR|MV_ERROR)) s->error_count= INT_MAX;
00647
00648 if(mask == ~0x7F){
00649 memset(&s->error_status_table[start_xy], 0, (end_xy - start_xy) * sizeof(uint8_t));
00650 }else{
00651 int i;
00652 for(i=start_xy; i<end_xy; i++){
00653 s->error_status_table[ i ] &= mask;
00654 }
00655 }
00656
00657 if(end_i == s->mb_num)
00658 s->error_count= INT_MAX;
00659 else{
00660 s->error_status_table[end_xy] &= mask;
00661 s->error_status_table[end_xy] |= status;
00662 }
00663
00664 s->error_status_table[start_xy] |= VP_START;
00665
00666 if(start_xy > 0 && s->avctx->thread_count <= 1 && s->avctx->skip_top*s->mb_width < start_i){
00667 int prev_status= s->error_status_table[ s->mb_index2xy[start_i - 1] ];
00668
00669 prev_status &= ~ VP_START;
00670 if(prev_status != (MV_END|DC_END|AC_END)) s->error_count= INT_MAX;
00671 }
00672 }
00673
00674 void ff_er_frame_end(MpegEncContext *s){
00675 int i, mb_x, mb_y, error, error_type, dc_error, mv_error, ac_error;
00676 int distance;
00677 int threshold_part[4]= {100,100,100};
00678 int threshold= 50;
00679 int is_intra_likely;
00680 int size = s->b8_stride * 2 * s->mb_height;
00681 Picture *pic= s->current_picture_ptr;
00682
00683 if(!s->error_resilience || s->error_count==0 ||
00684 s->error_count==3*s->mb_width*(s->avctx->skip_top + s->avctx->skip_bottom)) return;
00685
00686 if(s->current_picture.motion_val[0] == NULL){
00687 av_log(s->avctx, AV_LOG_ERROR, "Warning MVs not available\n");
00688
00689 for(i=0; i<2; i++){
00690 pic->ref_index[i]= av_mallocz(size * sizeof(uint8_t));
00691 pic->motion_val_base[i]= av_mallocz((size+4) * 2 * sizeof(uint16_t));
00692 pic->motion_val[i]= pic->motion_val_base[i]+4;
00693 }
00694 pic->motion_subsample_log2= 3;
00695 s->current_picture= *s->current_picture_ptr;
00696 }
00697
00698 for(i=0; i<2; i++){
00699 if(pic->ref_index[i])
00700 memset(pic->ref_index[i], 0, size * sizeof(uint8_t));
00701 }
00702
00703 if(s->avctx->debug&FF_DEBUG_ER){
00704 for(mb_y=0; mb_y<s->mb_height; mb_y++){
00705 for(mb_x=0; mb_x<s->mb_width; mb_x++){
00706 int status= s->error_status_table[mb_x + mb_y*s->mb_stride];
00707
00708 av_log(s->avctx, AV_LOG_DEBUG, "%2X ", status);
00709 }
00710 av_log(s->avctx, AV_LOG_DEBUG, "\n");
00711 }
00712 }
00713
00714 #if 1
00715
00716 for(error_type=1; error_type<=3; error_type++){
00717 int end_ok=0;
00718
00719 for(i=s->mb_num-1; i>=0; i--){
00720 const int mb_xy= s->mb_index2xy[i];
00721 int error= s->error_status_table[mb_xy];
00722
00723 if(error&(1<<error_type))
00724 end_ok=1;
00725 if(error&(8<<error_type))
00726 end_ok=1;
00727
00728 if(!end_ok)
00729 s->error_status_table[mb_xy]|= 1<<error_type;
00730
00731 if(error&VP_START)
00732 end_ok=0;
00733 }
00734 }
00735 #endif
00736 #if 1
00737
00738 if(s->partitioned_frame){
00739 int end_ok=0;
00740
00741 for(i=s->mb_num-1; i>=0; i--){
00742 const int mb_xy= s->mb_index2xy[i];
00743 int error= s->error_status_table[mb_xy];
00744
00745 if(error&AC_END)
00746 end_ok=0;
00747 if((error&MV_END) || (error&DC_END) || (error&AC_ERROR))
00748 end_ok=1;
00749
00750 if(!end_ok)
00751 s->error_status_table[mb_xy]|= AC_ERROR;
00752
00753 if(error&VP_START)
00754 end_ok=0;
00755 }
00756 }
00757 #endif
00758
00759 if(s->error_resilience>=4){
00760 int end_ok=1;
00761
00762 for(i=s->mb_num-2; i>=s->mb_width+100; i--){
00763 const int mb_xy= s->mb_index2xy[i];
00764 int error1= s->error_status_table[mb_xy ];
00765 int error2= s->error_status_table[s->mb_index2xy[i+1]];
00766
00767 if(error1&VP_START)
00768 end_ok=1;
00769
00770 if( error2==(VP_START|DC_ERROR|AC_ERROR|MV_ERROR|AC_END|DC_END|MV_END)
00771 && error1!=(VP_START|DC_ERROR|AC_ERROR|MV_ERROR|AC_END|DC_END|MV_END)
00772 && ((error1&AC_END) || (error1&DC_END) || (error1&MV_END))){
00773 end_ok=0;
00774 }
00775
00776 if(!end_ok)
00777 s->error_status_table[mb_xy]|= DC_ERROR|AC_ERROR|MV_ERROR;
00778 }
00779 }
00780
00781 #if 1
00782
00783 distance=9999999;
00784 for(error_type=1; error_type<=3; error_type++){
00785 for(i=s->mb_num-1; i>=0; i--){
00786 const int mb_xy= s->mb_index2xy[i];
00787 int error= s->error_status_table[mb_xy];
00788
00789 if(!s->mbskip_table[mb_xy])
00790 distance++;
00791 if(error&(1<<error_type))
00792 distance= 0;
00793
00794 if(s->partitioned_frame){
00795 if(distance < threshold_part[error_type-1])
00796 s->error_status_table[mb_xy]|= 1<<error_type;
00797 }else{
00798 if(distance < threshold)
00799 s->error_status_table[mb_xy]|= 1<<error_type;
00800 }
00801
00802 if(error&VP_START)
00803 distance= 9999999;
00804 }
00805 }
00806 #endif
00807
00808
00809 error=0;
00810 for(i=0; i<s->mb_num; i++){
00811 const int mb_xy= s->mb_index2xy[i];
00812 int old_error= s->error_status_table[mb_xy];
00813
00814 if(old_error&VP_START)
00815 error= old_error& (DC_ERROR|AC_ERROR|MV_ERROR);
00816 else{
00817 error|= old_error& (DC_ERROR|AC_ERROR|MV_ERROR);
00818 s->error_status_table[mb_xy]|= error;
00819 }
00820 }
00821 #if 1
00822
00823 if(!s->partitioned_frame){
00824 for(i=0; i<s->mb_num; i++){
00825 const int mb_xy= s->mb_index2xy[i];
00826 error= s->error_status_table[mb_xy];
00827 if(error&(AC_ERROR|DC_ERROR|MV_ERROR))
00828 error|= AC_ERROR|DC_ERROR|MV_ERROR;
00829 s->error_status_table[mb_xy]= error;
00830 }
00831 }
00832 #endif
00833
00834 dc_error= ac_error= mv_error=0;
00835 for(i=0; i<s->mb_num; i++){
00836 const int mb_xy= s->mb_index2xy[i];
00837 error= s->error_status_table[mb_xy];
00838 if(error&DC_ERROR) dc_error ++;
00839 if(error&AC_ERROR) ac_error ++;
00840 if(error&MV_ERROR) mv_error ++;
00841 }
00842 av_log(s->avctx, AV_LOG_INFO, "concealing %d DC, %d AC, %d MV errors\n", dc_error, ac_error, mv_error);
00843
00844 is_intra_likely= is_intra_more_likely(s);
00845
00846
00847 for(i=0; i<s->mb_num; i++){
00848 const int mb_xy= s->mb_index2xy[i];
00849 error= s->error_status_table[mb_xy];
00850 if(!((error&DC_ERROR) && (error&MV_ERROR)))
00851 continue;
00852
00853 if(is_intra_likely)
00854 s->current_picture.mb_type[mb_xy]= MB_TYPE_INTRA4x4;
00855 else
00856 s->current_picture.mb_type[mb_xy]= MB_TYPE_16x16 | MB_TYPE_L0;
00857 }
00858
00859
00860 for(mb_y=0; mb_y<s->mb_height; mb_y++){
00861 for(mb_x=0; mb_x<s->mb_width; mb_x++){
00862 const int mb_xy= mb_x + mb_y * s->mb_stride;
00863 const int mb_type= s->current_picture.mb_type[mb_xy];
00864 error= s->error_status_table[mb_xy];
00865
00866 if(IS_INTRA(mb_type)) continue;
00867 if(error&MV_ERROR) continue;
00868 if(!(error&AC_ERROR)) continue;
00869
00870 s->mv_dir = MV_DIR_FORWARD;
00871 s->mb_intra=0;
00872 s->mb_skipped=0;
00873 if(IS_8X8(mb_type)){
00874 int mb_index= mb_x*2 + mb_y*2*s->b8_stride;
00875 int j;
00876 s->mv_type = MV_TYPE_8X8;
00877 for(j=0; j<4; j++){
00878 s->mv[0][j][0] = s->current_picture.motion_val[0][ mb_index + (j&1) + (j>>1)*s->b8_stride ][0];
00879 s->mv[0][j][1] = s->current_picture.motion_val[0][ mb_index + (j&1) + (j>>1)*s->b8_stride ][1];
00880 }
00881 }else{
00882 s->mv_type = MV_TYPE_16X16;
00883 s->mv[0][0][0] = s->current_picture.motion_val[0][ mb_x*2 + mb_y*2*s->b8_stride ][0];
00884 s->mv[0][0][1] = s->current_picture.motion_val[0][ mb_x*2 + mb_y*2*s->b8_stride ][1];
00885 }
00886
00887 s->dsp.clear_blocks(s->block[0]);
00888
00889 s->mb_x= mb_x;
00890 s->mb_y= mb_y;
00891 decode_mb(s);
00892 }
00893 }
00894
00895
00896 if(s->pict_type==B_TYPE){
00897 for(mb_y=0; mb_y<s->mb_height; mb_y++){
00898 for(mb_x=0; mb_x<s->mb_width; mb_x++){
00899 int xy= mb_x*2 + mb_y*2*s->b8_stride;
00900 const int mb_xy= mb_x + mb_y * s->mb_stride;
00901 const int mb_type= s->current_picture.mb_type[mb_xy];
00902 error= s->error_status_table[mb_xy];
00903
00904 if(IS_INTRA(mb_type)) continue;
00905 if(!(error&MV_ERROR)) continue;
00906 if(!(error&AC_ERROR)) continue;
00907
00908 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD;
00909 s->mb_intra=0;
00910 s->mv_type = MV_TYPE_16X16;
00911 s->mb_skipped=0;
00912
00913 if(s->pp_time){
00914 int time_pp= s->pp_time;
00915 int time_pb= s->pb_time;
00916
00917 s->mv[0][0][0] = s->next_picture.motion_val[0][xy][0]*time_pb/time_pp;
00918 s->mv[0][0][1] = s->next_picture.motion_val[0][xy][1]*time_pb/time_pp;
00919 s->mv[1][0][0] = s->next_picture.motion_val[0][xy][0]*(time_pb - time_pp)/time_pp;
00920 s->mv[1][0][1] = s->next_picture.motion_val[0][xy][1]*(time_pb - time_pp)/time_pp;
00921 }else{
00922 s->mv[0][0][0]= 0;
00923 s->mv[0][0][1]= 0;
00924 s->mv[1][0][0]= 0;
00925 s->mv[1][0][1]= 0;
00926 }
00927
00928 s->dsp.clear_blocks(s->block[0]);
00929 s->mb_x= mb_x;
00930 s->mb_y= mb_y;
00931 decode_mb(s);
00932 }
00933 }
00934 }else
00935 guess_mv(s);
00936
00937 #ifdef HAVE_XVMC
00938
00939 if(s->avctx->xvmc_acceleration) goto ec_clean;
00940 #endif
00941
00942 for(mb_y=0; mb_y<s->mb_height; mb_y++){
00943 for(mb_x=0; mb_x<s->mb_width; mb_x++){
00944 int dc, dcu, dcv, y, n;
00945 int16_t *dc_ptr;
00946 uint8_t *dest_y, *dest_cb, *dest_cr;
00947 const int mb_xy= mb_x + mb_y * s->mb_stride;
00948 const int mb_type= s->current_picture.mb_type[mb_xy];
00949
00950 error= s->error_status_table[mb_xy];
00951
00952 if(IS_INTRA(mb_type) && s->partitioned_frame) continue;
00953
00954
00955 dest_y = s->current_picture.data[0] + mb_x*16 + mb_y*16*s->linesize;
00956 dest_cb= s->current_picture.data[1] + mb_x*8 + mb_y*8 *s->uvlinesize;
00957 dest_cr= s->current_picture.data[2] + mb_x*8 + mb_y*8 *s->uvlinesize;
00958
00959 dc_ptr= &s->dc_val[0][mb_x*2 + mb_y*2*s->b8_stride];
00960 for(n=0; n<4; n++){
00961 dc=0;
00962 for(y=0; y<8; y++){
00963 int x;
00964 for(x=0; x<8; x++){
00965 dc+= dest_y[x + (n&1)*8 + (y + (n>>1)*8)*s->linesize];
00966 }
00967 }
00968 dc_ptr[(n&1) + (n>>1)*s->b8_stride]= (dc+4)>>3;
00969 }
00970
00971 dcu=dcv=0;
00972 for(y=0; y<8; y++){
00973 int x;
00974 for(x=0; x<8; x++){
00975 dcu+=dest_cb[x + y*(s->uvlinesize)];
00976 dcv+=dest_cr[x + y*(s->uvlinesize)];
00977 }
00978 }
00979 s->dc_val[1][mb_x + mb_y*s->mb_stride]= (dcu+4)>>3;
00980 s->dc_val[2][mb_x + mb_y*s->mb_stride]= (dcv+4)>>3;
00981 }
00982 }
00983 #if 1
00984
00985 guess_dc(s, s->dc_val[0], s->mb_width*2, s->mb_height*2, s->b8_stride, 1);
00986 guess_dc(s, s->dc_val[1], s->mb_width , s->mb_height , s->mb_stride, 0);
00987 guess_dc(s, s->dc_val[2], s->mb_width , s->mb_height , s->mb_stride, 0);
00988 #endif
00989
00990 filter181(s->dc_val[0], s->mb_width*2, s->mb_height*2, s->b8_stride);
00991
00992 #if 1
00993
00994 for(mb_y=0; mb_y<s->mb_height; mb_y++){
00995 for(mb_x=0; mb_x<s->mb_width; mb_x++){
00996 uint8_t *dest_y, *dest_cb, *dest_cr;
00997 const int mb_xy= mb_x + mb_y * s->mb_stride;
00998 const int mb_type= s->current_picture.mb_type[mb_xy];
00999
01000 error= s->error_status_table[mb_xy];
01001
01002 if(IS_INTER(mb_type)) continue;
01003 if(!(error&AC_ERROR)) continue;
01004
01005 dest_y = s->current_picture.data[0] + mb_x*16 + mb_y*16*s->linesize;
01006 dest_cb= s->current_picture.data[1] + mb_x*8 + mb_y*8 *s->uvlinesize;
01007 dest_cr= s->current_picture.data[2] + mb_x*8 + mb_y*8 *s->uvlinesize;
01008
01009 put_dc(s, dest_y, dest_cb, dest_cr, mb_x, mb_y);
01010 }
01011 }
01012 #endif
01013
01014 if(s->avctx->error_concealment&FF_EC_DEBLOCK){
01015
01016 h_block_filter(s, s->current_picture.data[0], s->mb_width*2, s->mb_height*2, s->linesize , 1);
01017 h_block_filter(s, s->current_picture.data[1], s->mb_width , s->mb_height , s->uvlinesize, 0);
01018 h_block_filter(s, s->current_picture.data[2], s->mb_width , s->mb_height , s->uvlinesize, 0);
01019
01020
01021 v_block_filter(s, s->current_picture.data[0], s->mb_width*2, s->mb_height*2, s->linesize , 1);
01022 v_block_filter(s, s->current_picture.data[1], s->mb_width , s->mb_height , s->uvlinesize, 0);
01023 v_block_filter(s, s->current_picture.data[2], s->mb_width , s->mb_height , s->uvlinesize, 0);
01024 }
01025
01026 #ifdef HAVE_XVMC
01027 ec_clean:
01028 #endif
01029
01030 for(i=0; i<s->mb_num; i++){
01031 const int mb_xy= s->mb_index2xy[i];
01032 int error= s->error_status_table[mb_xy];
01033
01034 if(s->pict_type!=B_TYPE && (error&(DC_ERROR|MV_ERROR|AC_ERROR))){
01035 s->mbskip_table[mb_xy]=0;
01036 }
01037 s->mbintra_table[mb_xy]=1;
01038 }
01039 }