2 * Error resilience / concealment
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 * Error resilience / concealment.
30 #include "libavutil/atomic.h"
31 #include "libavutil/internal.h"
33 #include "error_resilience.h"
35 #include "mpegutils.h"
36 #include "mpegvideo.h"
37 #include "rectangle.h"
42 * @param stride the number of MVs to get to the next row
43 * @param mv_step the number of MVs per row or column in a macroblock
45 static void set_mv_strides(ERContext *s, int *mv_step, int *stride)
47 if (s->avctx->codec_id == AV_CODEC_ID_H264) {
48 av_assert0(s->quarter_sample);
50 *stride = s->mb_width * 4;
53 *stride = s->b8_stride;
58 * Replace the current MB with a flat dc-only version.
60 static void put_dc(ERContext *s, uint8_t *dest_y, uint8_t *dest_cb,
61 uint8_t *dest_cr, int mb_x, int mb_y)
63 int *linesize = s->cur_pic.f->linesize;
64 int dc, dcu, dcv, y, i;
65 for (i = 0; i < 4; i++) {
66 dc = s->dc_val[0][mb_x * 2 + (i & 1) + (mb_y * 2 + (i >> 1)) * s->b8_stride];
71 for (y = 0; y < 8; y++) {
73 for (x = 0; x < 8; x++)
74 dest_y[x + (i & 1) * 8 + (y + (i >> 1) * 8) * linesize[0]] = dc / 8;
77 dcu = s->dc_val[1][mb_x + mb_y * s->mb_stride];
78 dcv = s->dc_val[2][mb_x + mb_y * s->mb_stride];
89 for (y = 0; y < 8; y++) {
91 for (x = 0; x < 8; x++) {
92 dest_cb[x + y * linesize[1]] = dcu / 8;
93 dest_cr[x + y * linesize[2]] = dcv / 8;
98 static void filter181(int16_t *data, int width, int height, int stride)
102 /* horizontal filter */
103 for (y = 1; y < height - 1; y++) {
104 int prev_dc = data[0 + y * stride];
106 for (x = 1; x < width - 1; x++) {
109 data[x + y * stride] * 8 -
110 data[x + 1 + y * stride];
111 dc = (dc * 10923 + 32768) >> 16;
112 prev_dc = data[x + y * stride];
113 data[x + y * stride] = dc;
117 /* vertical filter */
118 for (x = 1; x < width - 1; x++) {
119 int prev_dc = data[x];
121 for (y = 1; y < height - 1; y++) {
125 data[x + y * stride] * 8 -
126 data[x + (y + 1) * stride];
127 dc = (dc * 10923 + 32768) >> 16;
128 prev_dc = data[x + y * stride];
129 data[x + y * stride] = dc;
135 * guess the dc of blocks which do not have an undamaged dc
136 * @param w width in 8 pixel blocks
137 * @param h height in 8 pixel blocks
139 static void guess_dc(ERContext *s, int16_t *dc, int w,
140 int h, int stride, int is_luma)
143 int16_t (*col )[4] = av_malloc_array(stride, h*sizeof( int16_t)*4);
144 uint32_t (*dist)[4] = av_malloc_array(stride, h*sizeof(uint32_t)*4);
147 av_log(s->avctx, AV_LOG_ERROR, "guess_dc() is out of memory\n");
151 for(b_y=0; b_y<h; b_y++){
154 for(b_x=0; b_x<w; b_x++){
155 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
156 int error_j= s->error_status_table[mb_index_j];
157 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
158 if(intra_j==0 || !(error_j&ER_DC_ERROR)){
159 color= dc[b_x + b_y*stride];
162 col [b_x + b_y*stride][1]= color;
163 dist[b_x + b_y*stride][1]= distance >= 0 ? b_x-distance : 9999;
167 for(b_x=w-1; b_x>=0; b_x--){
168 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
169 int error_j= s->error_status_table[mb_index_j];
170 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
171 if(intra_j==0 || !(error_j&ER_DC_ERROR)){
172 color= dc[b_x + b_y*stride];
175 col [b_x + b_y*stride][0]= color;
176 dist[b_x + b_y*stride][0]= distance >= 0 ? distance-b_x : 9999;
179 for(b_x=0; b_x<w; b_x++){
182 for(b_y=0; b_y<h; b_y++){
183 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
184 int error_j= s->error_status_table[mb_index_j];
185 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
186 if(intra_j==0 || !(error_j&ER_DC_ERROR)){
187 color= dc[b_x + b_y*stride];
190 col [b_x + b_y*stride][3]= color;
191 dist[b_x + b_y*stride][3]= distance >= 0 ? b_y-distance : 9999;
195 for(b_y=h-1; b_y>=0; b_y--){
196 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
197 int error_j= s->error_status_table[mb_index_j];
198 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
199 if(intra_j==0 || !(error_j&ER_DC_ERROR)){
200 color= dc[b_x + b_y*stride];
203 col [b_x + b_y*stride][2]= color;
204 dist[b_x + b_y*stride][2]= distance >= 0 ? distance-b_y : 9999;
208 for (b_y = 0; b_y < h; b_y++) {
209 for (b_x = 0; b_x < w; b_x++) {
210 int mb_index, error, j;
211 int64_t guess, weight_sum;
212 mb_index = (b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride;
213 error = s->error_status_table[mb_index];
215 if (IS_INTER(s->cur_pic.mb_type[mb_index]))
217 if (!(error & ER_DC_ERROR))
222 for (j = 0; j < 4; j++) {
223 int64_t weight = 256 * 256 * 256 * 16 / FFMAX(dist[b_x + b_y*stride][j], 1);
224 guess += weight*(int64_t)col[b_x + b_y*stride][j];
225 weight_sum += weight;
227 guess = (guess + weight_sum / 2) / weight_sum;
228 dc[b_x + b_y * stride] = guess;
238 * simple horizontal deblocking filter used for error resilience
239 * @param w width in 8 pixel blocks
240 * @param h height in 8 pixel blocks
242 static void h_block_filter(ERContext *s, uint8_t *dst, int w,
243 int h, int stride, int is_luma)
245 int b_x, b_y, mvx_stride, mvy_stride;
246 const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
247 set_mv_strides(s, &mvx_stride, &mvy_stride);
248 mvx_stride >>= is_luma;
249 mvy_stride *= mvx_stride;
251 for (b_y = 0; b_y < h; b_y++) {
252 for (b_x = 0; b_x < w - 1; b_x++) {
254 int left_status = s->error_status_table[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride];
255 int right_status = s->error_status_table[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride];
256 int left_intra = IS_INTRA(s->cur_pic.mb_type[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]);
257 int right_intra = IS_INTRA(s->cur_pic.mb_type[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride]);
258 int left_damage = left_status & ER_MB_ERROR;
259 int right_damage = right_status & ER_MB_ERROR;
260 int offset = b_x * 8 + b_y * stride * 8;
261 int16_t *left_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * b_x];
262 int16_t *right_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * (b_x + 1)];
263 if (!(left_damage || right_damage))
264 continue; // both undamaged
265 if ((!left_intra) && (!right_intra) &&
266 FFABS(left_mv[0] - right_mv[0]) +
267 FFABS(left_mv[1] + right_mv[1]) < 2)
270 for (y = 0; y < 8; y++) {
273 a = dst[offset + 7 + y * stride] - dst[offset + 6 + y * stride];
274 b = dst[offset + 8 + y * stride] - dst[offset + 7 + y * stride];
275 c = dst[offset + 9 + y * stride] - dst[offset + 8 + y * stride];
277 d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1);
285 if (!(left_damage && right_damage))
289 dst[offset + 7 + y * stride] = cm[dst[offset + 7 + y * stride] + ((d * 7) >> 4)];
290 dst[offset + 6 + y * stride] = cm[dst[offset + 6 + y * stride] + ((d * 5) >> 4)];
291 dst[offset + 5 + y * stride] = cm[dst[offset + 5 + y * stride] + ((d * 3) >> 4)];
292 dst[offset + 4 + y * stride] = cm[dst[offset + 4 + y * stride] + ((d * 1) >> 4)];
295 dst[offset + 8 + y * stride] = cm[dst[offset + 8 + y * stride] - ((d * 7) >> 4)];
296 dst[offset + 9 + y * stride] = cm[dst[offset + 9 + y * stride] - ((d * 5) >> 4)];
297 dst[offset + 10+ y * stride] = cm[dst[offset + 10 + y * stride] - ((d * 3) >> 4)];
298 dst[offset + 11+ y * stride] = cm[dst[offset + 11 + y * stride] - ((d * 1) >> 4)];
306 * simple vertical deblocking filter used for error resilience
307 * @param w width in 8 pixel blocks
308 * @param h height in 8 pixel blocks
310 static void v_block_filter(ERContext *s, uint8_t *dst, int w, int h,
311 int stride, int is_luma)
313 int b_x, b_y, mvx_stride, mvy_stride;
314 const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
315 set_mv_strides(s, &mvx_stride, &mvy_stride);
316 mvx_stride >>= is_luma;
317 mvy_stride *= mvx_stride;
319 for (b_y = 0; b_y < h - 1; b_y++) {
320 for (b_x = 0; b_x < w; b_x++) {
322 int top_status = s->error_status_table[(b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride];
323 int bottom_status = s->error_status_table[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride];
324 int top_intra = IS_INTRA(s->cur_pic.mb_type[(b_x >> is_luma) + ( b_y >> is_luma) * s->mb_stride]);
325 int bottom_intra = IS_INTRA(s->cur_pic.mb_type[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride]);
326 int top_damage = top_status & ER_MB_ERROR;
327 int bottom_damage = bottom_status & ER_MB_ERROR;
328 int offset = b_x * 8 + b_y * stride * 8;
330 int16_t *top_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * b_x];
331 int16_t *bottom_mv = s->cur_pic.motion_val[0][mvy_stride * (b_y + 1) + mvx_stride * b_x];
333 if (!(top_damage || bottom_damage))
334 continue; // both undamaged
336 if ((!top_intra) && (!bottom_intra) &&
337 FFABS(top_mv[0] - bottom_mv[0]) +
338 FFABS(top_mv[1] + bottom_mv[1]) < 2)
341 for (x = 0; x < 8; x++) {
344 a = dst[offset + x + 7 * stride] - dst[offset + x + 6 * stride];
345 b = dst[offset + x + 8 * stride] - dst[offset + x + 7 * stride];
346 c = dst[offset + x + 9 * stride] - dst[offset + x + 8 * stride];
348 d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1);
356 if (!(top_damage && bottom_damage))
360 dst[offset + x + 7 * stride] = cm[dst[offset + x + 7 * stride] + ((d * 7) >> 4)];
361 dst[offset + x + 6 * stride] = cm[dst[offset + x + 6 * stride] + ((d * 5) >> 4)];
362 dst[offset + x + 5 * stride] = cm[dst[offset + x + 5 * stride] + ((d * 3) >> 4)];
363 dst[offset + x + 4 * stride] = cm[dst[offset + x + 4 * stride] + ((d * 1) >> 4)];
366 dst[offset + x + 8 * stride] = cm[dst[offset + x + 8 * stride] - ((d * 7) >> 4)];
367 dst[offset + x + 9 * stride] = cm[dst[offset + x + 9 * stride] - ((d * 5) >> 4)];
368 dst[offset + x + 10 * stride] = cm[dst[offset + x + 10 * stride] - ((d * 3) >> 4)];
369 dst[offset + x + 11 * stride] = cm[dst[offset + x + 11 * stride] - ((d * 1) >> 4)];
378 #define MV_UNCHANGED 2
380 static av_always_inline void add_blocklist(int (*blocklist)[2], int *blocklist_length, uint8_t *fixed, int mb_x, int mb_y, int mb_xy)
384 fixed[mb_xy] = MV_LISTED;
385 blocklist[ *blocklist_length ][0] = mb_x;
386 blocklist[(*blocklist_length)++][1] = mb_y;
389 static void guess_mv(ERContext *s)
391 int (*blocklist)[2], (*next_blocklist)[2];
393 const int mb_stride = s->mb_stride;
394 const int mb_width = s->mb_width;
395 int mb_height = s->mb_height;
396 int i, depth, num_avail;
397 int mb_x, mb_y, mot_step, mot_stride;
398 int blocklist_length, next_blocklist_length;
400 if (s->last_pic.f && s->last_pic.f->data[0])
401 mb_height = FFMIN(mb_height, (s->last_pic.f->height+15)>>4);
402 if (s->next_pic.f && s->next_pic.f->data[0])
403 mb_height = FFMIN(mb_height, (s->next_pic.f->height+15)>>4);
405 blocklist = (int (*)[2])s->er_temp_buffer;
406 next_blocklist = blocklist + s->mb_stride * s->mb_height;
407 fixed = (uint8_t *)(next_blocklist + s->mb_stride * s->mb_height);
409 set_mv_strides(s, &mot_step, &mot_stride);
412 if (s->last_pic.motion_val[0])
413 ff_thread_await_progress(s->last_pic.tf, mb_height-1, 0);
414 for (i = 0; i < mb_width * mb_height; i++) {
415 const int mb_xy = s->mb_index2xy[i];
417 int error = s->error_status_table[mb_xy];
419 if (IS_INTRA(s->cur_pic.mb_type[mb_xy]))
420 f = MV_FROZEN; // intra // FIXME check
421 if (!(error & ER_MV_ERROR))
422 f = MV_FROZEN; // inter with undamaged MV
427 else if(s->last_pic.f->data[0] && s->last_pic.motion_val[0]){
428 const int mb_y= mb_xy / s->mb_stride;
429 const int mb_x= mb_xy % s->mb_stride;
430 const int mot_index= (mb_x + mb_y*mot_stride) * mot_step;
431 s->cur_pic.motion_val[0][mot_index][0]= s->last_pic.motion_val[0][mot_index][0];
432 s->cur_pic.motion_val[0][mot_index][1]= s->last_pic.motion_val[0][mot_index][1];
433 s->cur_pic.ref_index[0][4*mb_xy] = s->last_pic.ref_index[0][4*mb_xy];
437 if ((!(s->avctx->error_concealment&FF_EC_GUESS_MVS)) ||
438 num_avail <= mb_width / 2) {
439 for (mb_y = 0; mb_y < mb_height; mb_y++) {
440 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
441 const int mb_xy = mb_x + mb_y * s->mb_stride;
442 int mv_dir = (s->last_pic.f && s->last_pic.f->data[0]) ? MV_DIR_FORWARD : MV_DIR_BACKWARD;
444 if (IS_INTRA(s->cur_pic.mb_type[mb_xy]))
446 if (!(s->error_status_table[mb_xy] & ER_MV_ERROR))
451 s->decode_mb(s->opaque, 0, mv_dir, MV_TYPE_16X16, &s->mv,
458 blocklist_length = 0;
459 for (mb_y = 0; mb_y < mb_height; mb_y++) {
460 for (mb_x = 0; mb_x < mb_width; mb_x++) {
461 const int mb_xy = mb_x + mb_y * mb_stride;
462 if (fixed[mb_xy] == MV_FROZEN) {
463 if (mb_x) add_blocklist(blocklist, &blocklist_length, fixed, mb_x - 1, mb_y, mb_xy - 1);
464 if (mb_y) add_blocklist(blocklist, &blocklist_length, fixed, mb_x, mb_y - 1, mb_xy - mb_stride);
465 if (mb_x+1 < mb_width) add_blocklist(blocklist, &blocklist_length, fixed, mb_x + 1, mb_y, mb_xy + 1);
466 if (mb_y+1 < mb_height) add_blocklist(blocklist, &blocklist_length, fixed, mb_x, mb_y + 1, mb_xy + mb_stride);
471 for (depth = 0; ; depth++) {
472 int changed, pass, none_left;
477 for (pass = 0; (changed || pass < 2) && pass < 10; pass++) {
481 for (blocklist_index = 0; blocklist_index < blocklist_length; blocklist_index++) {
482 const int mb_x = blocklist[blocklist_index][0];
483 const int mb_y = blocklist[blocklist_index][1];
484 const int mb_xy = mb_x + mb_y * mb_stride;
485 int mv_predictor[8][2];
492 int prev_x, prev_y, prev_ref;
494 if ((mb_x ^ mb_y ^ pass) & 1)
496 av_assert2(fixed[mb_xy] != MV_FROZEN);
499 av_assert1(!IS_INTRA(s->cur_pic.mb_type[mb_xy]));
500 av_assert1(s->last_pic.f && s->last_pic.f->data[0]);
504 j |= fixed[mb_xy - 1];
505 if (mb_x + 1 < mb_width)
506 j |= fixed[mb_xy + 1];
508 j |= fixed[mb_xy - mb_stride];
509 if (mb_y + 1 < mb_height)
510 j |= fixed[mb_xy + mb_stride];
512 av_assert2(j & MV_FROZEN);
514 if (!(j & MV_CHANGED) && pass > 1)
519 mot_index = (mb_x + mb_y * mot_stride) * mot_step;
521 if (mb_x > 0 && fixed[mb_xy - 1] > 1) {
522 mv_predictor[pred_count][0] =
523 s->cur_pic.motion_val[0][mot_index - mot_step][0];
524 mv_predictor[pred_count][1] =
525 s->cur_pic.motion_val[0][mot_index - mot_step][1];
527 s->cur_pic.ref_index[0][4 * (mb_xy - 1)];
530 if (mb_x + 1 < mb_width && fixed[mb_xy + 1] > 1) {
531 mv_predictor[pred_count][0] =
532 s->cur_pic.motion_val[0][mot_index + mot_step][0];
533 mv_predictor[pred_count][1] =
534 s->cur_pic.motion_val[0][mot_index + mot_step][1];
536 s->cur_pic.ref_index[0][4 * (mb_xy + 1)];
539 if (mb_y > 0 && fixed[mb_xy - mb_stride] > 1) {
540 mv_predictor[pred_count][0] =
541 s->cur_pic.motion_val[0][mot_index - mot_stride * mot_step][0];
542 mv_predictor[pred_count][1] =
543 s->cur_pic.motion_val[0][mot_index - mot_stride * mot_step][1];
545 s->cur_pic.ref_index[0][4 * (mb_xy - s->mb_stride)];
548 if (mb_y + 1<mb_height && fixed[mb_xy + mb_stride] > 1) {
549 mv_predictor[pred_count][0] =
550 s->cur_pic.motion_val[0][mot_index + mot_stride * mot_step][0];
551 mv_predictor[pred_count][1] =
552 s->cur_pic.motion_val[0][mot_index + mot_stride * mot_step][1];
554 s->cur_pic.ref_index[0][4 * (mb_xy + s->mb_stride)];
560 if (pred_count > 1) {
561 int sum_x = 0, sum_y = 0, sum_r = 0;
562 int max_x, max_y, min_x, min_y, max_r, min_r;
564 for (j = 0; j < pred_count; j++) {
565 sum_x += mv_predictor[j][0];
566 sum_y += mv_predictor[j][1];
568 if (j && ref[j] != ref[j - 1])
569 goto skip_mean_and_median;
573 mv_predictor[pred_count][0] = sum_x / j;
574 mv_predictor[pred_count][1] = sum_y / j;
575 ref[pred_count] = sum_r / j;
578 if (pred_count >= 3) {
579 min_y = min_x = min_r = 99999;
580 max_y = max_x = max_r = -99999;
582 min_x = min_y = max_x = max_y = min_r = max_r = 0;
584 for (j = 0; j < pred_count; j++) {
585 max_x = FFMAX(max_x, mv_predictor[j][0]);
586 max_y = FFMAX(max_y, mv_predictor[j][1]);
587 max_r = FFMAX(max_r, ref[j]);
588 min_x = FFMIN(min_x, mv_predictor[j][0]);
589 min_y = FFMIN(min_y, mv_predictor[j][1]);
590 min_r = FFMIN(min_r, ref[j]);
592 mv_predictor[pred_count + 1][0] = sum_x - max_x - min_x;
593 mv_predictor[pred_count + 1][1] = sum_y - max_y - min_y;
594 ref[pred_count + 1] = sum_r - max_r - min_r;
596 if (pred_count == 4) {
597 mv_predictor[pred_count + 1][0] /= 2;
598 mv_predictor[pred_count + 1][1] /= 2;
599 ref[pred_count + 1] /= 2;
604 skip_mean_and_median:
606 mv_predictor[pred_count][0] =
607 mv_predictor[pred_count][1] =
611 prev_x = s->cur_pic.motion_val[0][mot_index][0];
612 prev_y = s->cur_pic.motion_val[0][mot_index][1];
613 prev_ref = s->cur_pic.ref_index[0][4 * mb_xy];
616 mv_predictor[pred_count][0] = prev_x;
617 mv_predictor[pred_count][1] = prev_y;
618 ref[pred_count] = prev_ref;
622 best_score = 256 * 256 * 256 * 64;
623 for (j = 0; j < pred_count; j++) {
624 int *linesize = s->cur_pic.f->linesize;
626 uint8_t *src = s->cur_pic.f->data[0] +
627 mb_x * 16 + mb_y * 16 * linesize[0];
629 s->cur_pic.motion_val[0][mot_index][0] =
630 s->mv[0][0][0] = mv_predictor[j][0];
631 s->cur_pic.motion_val[0][mot_index][1] =
632 s->mv[0][0][1] = mv_predictor[j][1];
634 // predictor intra or otherwise not available
638 s->decode_mb(s->opaque, ref[j], MV_DIR_FORWARD,
639 MV_TYPE_16X16, &s->mv, mb_x, mb_y, 0, 0);
641 if (mb_x > 0 && fixed[mb_xy - 1] > 1) {
643 for (k = 0; k < 16; k++)
644 score += FFABS(src[k * linesize[0] - 1] -
645 src[k * linesize[0]]);
647 if (mb_x + 1 < mb_width && fixed[mb_xy + 1] > 1) {
649 for (k = 0; k < 16; k++)
650 score += FFABS(src[k * linesize[0] + 15] -
651 src[k * linesize[0] + 16]);
653 if (mb_y > 0 && fixed[mb_xy - mb_stride] > 1) {
655 for (k = 0; k < 16; k++)
656 score += FFABS(src[k - linesize[0]] - src[k]);
658 if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride] > 1) {
660 for (k = 0; k < 16; k++)
661 score += FFABS(src[k + linesize[0] * 15] -
662 src[k + linesize[0] * 16]);
665 if (score <= best_score) { // <= will favor the last MV
670 score_sum += best_score;
671 s->mv[0][0][0] = mv_predictor[best_pred][0];
672 s->mv[0][0][1] = mv_predictor[best_pred][1];
674 for (i = 0; i < mot_step; i++)
675 for (j = 0; j < mot_step; j++) {
676 s->cur_pic.motion_val[0][mot_index + i + j * mot_stride][0] = s->mv[0][0][0];
677 s->cur_pic.motion_val[0][mot_index + i + j * mot_stride][1] = s->mv[0][0][1];
680 s->decode_mb(s->opaque, ref[best_pred], MV_DIR_FORWARD,
681 MV_TYPE_16X16, &s->mv, mb_x, mb_y, 0, 0);
684 if (s->mv[0][0][0] != prev_x || s->mv[0][0][1] != prev_y) {
685 fixed[mb_xy] = MV_CHANGED;
688 fixed[mb_xy] = MV_UNCHANGED;
695 next_blocklist_length = 0;
697 for (blocklist_index = 0; blocklist_index < blocklist_length; blocklist_index++) {
698 const int mb_x = blocklist[blocklist_index][0];
699 const int mb_y = blocklist[blocklist_index][1];
700 const int mb_xy = mb_x + mb_y * mb_stride;
702 if (fixed[mb_xy] & (MV_CHANGED|MV_UNCHANGED|MV_FROZEN)) {
703 fixed[mb_xy] = MV_FROZEN;
705 add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x - 1, mb_y, mb_xy - 1);
707 add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x, mb_y - 1, mb_xy - mb_stride);
708 if (mb_x + 1 < mb_width)
709 add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x + 1, mb_y, mb_xy + 1);
710 if (mb_y + 1 < mb_height)
711 add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x, mb_y + 1, mb_xy + mb_stride);
714 av_assert0(next_blocklist_length <= mb_height * mb_width);
715 FFSWAP(int , blocklist_length, next_blocklist_length);
716 FFSWAP(void*, blocklist, next_blocklist);
720 static int is_intra_more_likely(ERContext *s)
722 int is_intra_likely, i, j, undamaged_count, skip_amount, mb_x, mb_y;
724 if (!s->last_pic.f || !s->last_pic.f->data[0])
725 return 1; // no previous frame available -> use spatial prediction
727 if (s->avctx->error_concealment & FF_EC_FAVOR_INTER)
731 for (i = 0; i < s->mb_num; i++) {
732 const int mb_xy = s->mb_index2xy[i];
733 const int error = s->error_status_table[mb_xy];
734 if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR)))
738 if (undamaged_count < 5)
739 return 0; // almost all MBs damaged -> use temporal prediction
741 // prevent dsp.sad() check, that requires access to the image
743 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb &&
744 s->cur_pic.f->pict_type == AV_PICTURE_TYPE_I)
747 skip_amount = FFMAX(undamaged_count / 50, 1); // check only up to 50 MBs
751 for (mb_y = 0; mb_y < s->mb_height - 1; mb_y++) {
752 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
754 const int mb_xy = mb_x + mb_y * s->mb_stride;
756 error = s->error_status_table[mb_xy];
757 if ((error & ER_DC_ERROR) && (error & ER_MV_ERROR))
758 continue; // skip damaged
761 // skip a few to speed things up
762 if ((j % skip_amount) != 0)
765 if (s->cur_pic.f->pict_type == AV_PICTURE_TYPE_I) {
766 int *linesize = s->cur_pic.f->linesize;
767 uint8_t *mb_ptr = s->cur_pic.f->data[0] +
768 mb_x * 16 + mb_y * 16 * linesize[0];
769 uint8_t *last_mb_ptr = s->last_pic.f->data[0] +
770 mb_x * 16 + mb_y * 16 * linesize[0];
772 if (s->avctx->codec_id == AV_CODEC_ID_H264) {
775 ff_thread_await_progress(s->last_pic.tf, mb_y, 0);
777 is_intra_likely += s->mecc.sad[0](NULL, last_mb_ptr, mb_ptr,
779 // FIXME need await_progress() here
780 is_intra_likely -= s->mecc.sad[0](NULL, last_mb_ptr,
781 last_mb_ptr + linesize[0] * 16,
784 if (IS_INTRA(s->cur_pic.mb_type[mb_xy]))
791 // av_log(NULL, AV_LOG_ERROR, "is_intra_likely: %d type:%d\n", is_intra_likely, s->pict_type);
792 return is_intra_likely > 0;
795 void ff_er_frame_start(ERContext *s)
797 if (!s->avctx->error_concealment)
800 if (!s->mecc_inited) {
801 ff_me_cmp_init(&s->mecc, s->avctx);
805 memset(s->error_status_table, ER_MB_ERROR | VP_START | ER_MB_END,
806 s->mb_stride * s->mb_height * sizeof(uint8_t));
807 s->error_count = 3 * s->mb_num;
808 s->error_occurred = 0;
811 static int er_supported(ERContext *s)
813 if(s->avctx->hwaccel && s->avctx->hwaccel->decode_slice ||
815 s->avctx->codec->capabilities&AV_CODEC_CAP_HWACCEL_VDPAU ||
818 s->cur_pic.field_picture
826 * @param endx x component of the last macroblock, can be -1
827 * for the last of the previous line
828 * @param status the status at the end (ER_MV_END, ER_AC_ERROR, ...), it is
829 * assumed that no earlier end or error of the same type occurred
831 void ff_er_add_slice(ERContext *s, int startx, int starty,
832 int endx, int endy, int status)
834 const int start_i = av_clip(startx + starty * s->mb_width, 0, s->mb_num - 1);
835 const int end_i = av_clip(endx + endy * s->mb_width, 0, s->mb_num);
836 const int start_xy = s->mb_index2xy[start_i];
837 const int end_xy = s->mb_index2xy[end_i];
840 if (s->avctx->hwaccel && s->avctx->hwaccel->decode_slice)
843 if (start_i > end_i || start_xy > end_xy) {
844 av_log(s->avctx, AV_LOG_ERROR,
845 "internal error, slice end before start\n");
849 if (!s->avctx->error_concealment)
853 if (status & (ER_AC_ERROR | ER_AC_END)) {
854 mask &= ~(ER_AC_ERROR | ER_AC_END);
855 avpriv_atomic_int_add_and_fetch(&s->error_count, start_i - end_i - 1);
857 if (status & (ER_DC_ERROR | ER_DC_END)) {
858 mask &= ~(ER_DC_ERROR | ER_DC_END);
859 avpriv_atomic_int_add_and_fetch(&s->error_count, start_i - end_i - 1);
861 if (status & (ER_MV_ERROR | ER_MV_END)) {
862 mask &= ~(ER_MV_ERROR | ER_MV_END);
863 avpriv_atomic_int_add_and_fetch(&s->error_count, start_i - end_i - 1);
866 if (status & ER_MB_ERROR) {
867 s->error_occurred = 1;
868 avpriv_atomic_int_set(&s->error_count, INT_MAX);
872 memset(&s->error_status_table[start_xy], 0,
873 (end_xy - start_xy) * sizeof(uint8_t));
876 for (i = start_xy; i < end_xy; i++)
877 s->error_status_table[i] &= mask;
880 if (end_i == s->mb_num)
881 avpriv_atomic_int_set(&s->error_count, INT_MAX);
883 s->error_status_table[end_xy] &= mask;
884 s->error_status_table[end_xy] |= status;
887 s->error_status_table[start_xy] |= VP_START;
889 if (start_xy > 0 && !(s->avctx->active_thread_type & FF_THREAD_SLICE) &&
890 er_supported(s) && s->avctx->skip_top * s->mb_width < start_i) {
891 int prev_status = s->error_status_table[s->mb_index2xy[start_i - 1]];
893 prev_status &= ~ VP_START;
894 if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END)) {
895 s->error_occurred = 1;
896 avpriv_atomic_int_set(&s->error_count, INT_MAX);
901 void ff_er_frame_end(ERContext *s)
903 int *linesize = NULL;
904 int i, mb_x, mb_y, error, error_type, dc_error, mv_error, ac_error;
906 int threshold_part[4] = { 100, 100, 100 };
909 int size = s->b8_stride * 2 * s->mb_height;
911 /* We do not support ER of field pictures yet,
912 * though it should not crash if enabled. */
913 if (!s->avctx->error_concealment || s->error_count == 0 ||
916 s->error_count == 3 * s->mb_width *
917 (s->avctx->skip_top + s->avctx->skip_bottom)) {
920 linesize = s->cur_pic.f->linesize;
921 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
922 int status = s->error_status_table[mb_x + (s->mb_height - 1) * s->mb_stride];
927 if ( mb_x == s->mb_width
928 && s->avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO
929 && (FFALIGN(s->avctx->height, 16)&16)
930 && s->error_count == 3 * s->mb_width * (s->avctx->skip_top + s->avctx->skip_bottom + 1)
932 av_log(s->avctx, AV_LOG_DEBUG, "ignoring last missing slice\n");
937 if (s->last_pic.f->width != s->cur_pic.f->width ||
938 s->last_pic.f->height != s->cur_pic.f->height ||
939 s->last_pic.f->format != s->cur_pic.f->format) {
940 av_log(s->avctx, AV_LOG_WARNING, "Cannot use previous picture in error concealment\n");
941 memset(&s->last_pic, 0, sizeof(s->last_pic));
945 if (s->next_pic.f->width != s->cur_pic.f->width ||
946 s->next_pic.f->height != s->cur_pic.f->height ||
947 s->next_pic.f->format != s->cur_pic.f->format) {
948 av_log(s->avctx, AV_LOG_WARNING, "Cannot use next picture in error concealment\n");
949 memset(&s->next_pic, 0, sizeof(s->next_pic));
953 if (!s->cur_pic.motion_val[0] || !s->cur_pic.ref_index[0]) {
954 av_log(s->avctx, AV_LOG_ERROR, "Warning MVs not available\n");
956 for (i = 0; i < 2; i++) {
957 s->ref_index_buf[i] = av_buffer_allocz(s->mb_stride * s->mb_height * 4 * sizeof(uint8_t));
958 s->motion_val_buf[i] = av_buffer_allocz((size + 4) * 2 * sizeof(uint16_t));
959 if (!s->ref_index_buf[i] || !s->motion_val_buf[i])
961 s->cur_pic.ref_index[i] = s->ref_index_buf[i]->data;
962 s->cur_pic.motion_val[i] = (int16_t (*)[2])s->motion_val_buf[i]->data + 4;
965 for (i = 0; i < 2; i++) {
966 av_buffer_unref(&s->ref_index_buf[i]);
967 av_buffer_unref(&s->motion_val_buf[i]);
968 s->cur_pic.ref_index[i] = NULL;
969 s->cur_pic.motion_val[i] = NULL;
975 if (s->avctx->debug & FF_DEBUG_ER) {
976 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
977 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
978 int status = s->error_status_table[mb_x + mb_y * s->mb_stride];
980 av_log(s->avctx, AV_LOG_DEBUG, "%2X ", status);
982 av_log(s->avctx, AV_LOG_DEBUG, "\n");
987 /* handle overlapping slices */
988 for (error_type = 1; error_type <= 3; error_type++) {
991 for (i = s->mb_num - 1; i >= 0; i--) {
992 const int mb_xy = s->mb_index2xy[i];
993 int error = s->error_status_table[mb_xy];
995 if (error & (1 << error_type))
997 if (error & (8 << error_type))
1001 s->error_status_table[mb_xy] |= 1 << error_type;
1003 if (error & VP_START)
1009 /* handle slices with partitions of different length */
1010 if (s->partitioned_frame) {
1013 for (i = s->mb_num - 1; i >= 0; i--) {
1014 const int mb_xy = s->mb_index2xy[i];
1015 int error = s->error_status_table[mb_xy];
1017 if (error & ER_AC_END)
1019 if ((error & ER_MV_END) ||
1020 (error & ER_DC_END) ||
1021 (error & ER_AC_ERROR))
1025 s->error_status_table[mb_xy]|= ER_AC_ERROR;
1027 if (error & VP_START)
1032 /* handle missing slices */
1033 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1037 for (i = s->mb_num - 2; i >= s->mb_width + 100; i--) {
1038 const int mb_xy = s->mb_index2xy[i];
1039 int error1 = s->error_status_table[mb_xy];
1040 int error2 = s->error_status_table[s->mb_index2xy[i + 1]];
1042 if (error1 & VP_START)
1045 if (error2 == (VP_START | ER_MB_ERROR | ER_MB_END) &&
1046 error1 != (VP_START | ER_MB_ERROR | ER_MB_END) &&
1047 ((error1 & ER_AC_END) || (error1 & ER_DC_END) ||
1048 (error1 & ER_MV_END))) {
1054 s->error_status_table[mb_xy] |= ER_MB_ERROR;
1059 /* backward mark errors */
1061 for (error_type = 1; error_type <= 3; error_type++) {
1062 for (i = s->mb_num - 1; i >= 0; i--) {
1063 const int mb_xy = s->mb_index2xy[i];
1064 int error = s->error_status_table[mb_xy];
1066 if (!s->mbskip_table || !s->mbskip_table[mb_xy]) // FIXME partition specific
1068 if (error & (1 << error_type))
1071 if (s->partitioned_frame) {
1072 if (distance < threshold_part[error_type - 1])
1073 s->error_status_table[mb_xy] |= 1 << error_type;
1075 if (distance < threshold)
1076 s->error_status_table[mb_xy] |= 1 << error_type;
1079 if (error & VP_START)
1085 /* forward mark errors */
1087 for (i = 0; i < s->mb_num; i++) {
1088 const int mb_xy = s->mb_index2xy[i];
1089 int old_error = s->error_status_table[mb_xy];
1091 if (old_error & VP_START) {
1092 error = old_error & ER_MB_ERROR;
1094 error |= old_error & ER_MB_ERROR;
1095 s->error_status_table[mb_xy] |= error;
1099 /* handle not partitioned case */
1100 if (!s->partitioned_frame) {
1101 for (i = 0; i < s->mb_num; i++) {
1102 const int mb_xy = s->mb_index2xy[i];
1103 int error = s->error_status_table[mb_xy];
1104 if (error & ER_MB_ERROR)
1105 error |= ER_MB_ERROR;
1106 s->error_status_table[mb_xy] = error;
1111 dc_error = ac_error = mv_error = 0;
1112 for (i = 0; i < s->mb_num; i++) {
1113 const int mb_xy = s->mb_index2xy[i];
1114 int error = s->error_status_table[mb_xy];
1115 if (error & ER_DC_ERROR)
1117 if (error & ER_AC_ERROR)
1119 if (error & ER_MV_ERROR)
1122 av_log(s->avctx, AV_LOG_INFO, "concealing %d DC, %d AC, %d MV errors in %c frame\n",
1123 dc_error, ac_error, mv_error, av_get_picture_type_char(s->cur_pic.f->pict_type));
1125 is_intra_likely = is_intra_more_likely(s);
1127 /* set unknown mb-type to most likely */
1128 for (i = 0; i < s->mb_num; i++) {
1129 const int mb_xy = s->mb_index2xy[i];
1130 int error = s->error_status_table[mb_xy];
1131 if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR)))
1134 if (is_intra_likely)
1135 s->cur_pic.mb_type[mb_xy] = MB_TYPE_INTRA4x4;
1137 s->cur_pic.mb_type[mb_xy] = MB_TYPE_16x16 | MB_TYPE_L0;
1140 // change inter to intra blocks if no reference frames are available
1141 if (!(s->last_pic.f && s->last_pic.f->data[0]) &&
1142 !(s->next_pic.f && s->next_pic.f->data[0]))
1143 for (i = 0; i < s->mb_num; i++) {
1144 const int mb_xy = s->mb_index2xy[i];
1145 if (!IS_INTRA(s->cur_pic.mb_type[mb_xy]))
1146 s->cur_pic.mb_type[mb_xy] = MB_TYPE_INTRA4x4;
1149 /* handle inter blocks with damaged AC */
1150 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
1151 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
1152 const int mb_xy = mb_x + mb_y * s->mb_stride;
1153 const int mb_type = s->cur_pic.mb_type[mb_xy];
1154 const int dir = !(s->last_pic.f && s->last_pic.f->data[0]);
1155 const int mv_dir = dir ? MV_DIR_BACKWARD : MV_DIR_FORWARD;
1158 int error = s->error_status_table[mb_xy];
1160 if (IS_INTRA(mb_type))
1162 if (error & ER_MV_ERROR)
1163 continue; // inter with damaged MV
1164 if (!(error & ER_AC_ERROR))
1165 continue; // undamaged inter
1167 if (IS_8X8(mb_type)) {
1168 int mb_index = mb_x * 2 + mb_y * 2 * s->b8_stride;
1170 mv_type = MV_TYPE_8X8;
1171 for (j = 0; j < 4; j++) {
1172 s->mv[0][j][0] = s->cur_pic.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][0];
1173 s->mv[0][j][1] = s->cur_pic.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][1];
1176 mv_type = MV_TYPE_16X16;
1177 s->mv[0][0][0] = s->cur_pic.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][0];
1178 s->mv[0][0][1] = s->cur_pic.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][1];
1181 s->decode_mb(s->opaque, 0 /* FIXME H.264 partitioned slices need this set */,
1182 mv_dir, mv_type, &s->mv, mb_x, mb_y, 0, 0);
1187 if (s->cur_pic.f->pict_type == AV_PICTURE_TYPE_B) {
1188 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
1189 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
1190 int xy = mb_x * 2 + mb_y * 2 * s->b8_stride;
1191 const int mb_xy = mb_x + mb_y * s->mb_stride;
1192 const int mb_type = s->cur_pic.mb_type[mb_xy];
1193 int mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
1195 int error = s->error_status_table[mb_xy];
1197 if (IS_INTRA(mb_type))
1199 if (!(error & ER_MV_ERROR))
1200 continue; // inter with undamaged MV
1201 if (!(error & ER_AC_ERROR))
1202 continue; // undamaged inter
1204 if (!(s->last_pic.f && s->last_pic.f->data[0]))
1205 mv_dir &= ~MV_DIR_FORWARD;
1206 if (!(s->next_pic.f && s->next_pic.f->data[0]))
1207 mv_dir &= ~MV_DIR_BACKWARD;
1210 int time_pp = s->pp_time;
1211 int time_pb = s->pb_time;
1213 av_assert0(s->avctx->codec_id != AV_CODEC_ID_H264);
1214 ff_thread_await_progress(s->next_pic.tf, mb_y, 0);
1216 s->mv[0][0][0] = s->next_pic.motion_val[0][xy][0] * time_pb / time_pp;
1217 s->mv[0][0][1] = s->next_pic.motion_val[0][xy][1] * time_pb / time_pp;
1218 s->mv[1][0][0] = s->next_pic.motion_val[0][xy][0] * (time_pb - time_pp) / time_pp;
1219 s->mv[1][0][1] = s->next_pic.motion_val[0][xy][1] * (time_pb - time_pp) / time_pp;
1227 s->decode_mb(s->opaque, 0, mv_dir, MV_TYPE_16X16, &s->mv,
1234 /* the filters below manipulate raw image, skip them */
1235 if (CONFIG_XVMC && s->avctx->hwaccel && s->avctx->hwaccel->decode_mb)
1237 /* fill DC for inter blocks */
1238 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
1239 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
1240 int dc, dcu, dcv, y, n;
1242 uint8_t *dest_y, *dest_cb, *dest_cr;
1243 const int mb_xy = mb_x + mb_y * s->mb_stride;
1244 const int mb_type = s->cur_pic.mb_type[mb_xy];
1246 // error = s->error_status_table[mb_xy];
1248 if (IS_INTRA(mb_type) && s->partitioned_frame)
1250 // if (error & ER_MV_ERROR)
1251 // continue; // inter data damaged FIXME is this good?
1253 dest_y = s->cur_pic.f->data[0] + mb_x * 16 + mb_y * 16 * linesize[0];
1254 dest_cb = s->cur_pic.f->data[1] + mb_x * 8 + mb_y * 8 * linesize[1];
1255 dest_cr = s->cur_pic.f->data[2] + mb_x * 8 + mb_y * 8 * linesize[2];
1257 dc_ptr = &s->dc_val[0][mb_x * 2 + mb_y * 2 * s->b8_stride];
1258 for (n = 0; n < 4; n++) {
1260 for (y = 0; y < 8; y++) {
1262 for (x = 0; x < 8; x++)
1263 dc += dest_y[x + (n & 1) * 8 +
1264 (y + (n >> 1) * 8) * linesize[0]];
1266 dc_ptr[(n & 1) + (n >> 1) * s->b8_stride] = (dc + 4) >> 3;
1269 if (!s->cur_pic.f->data[2])
1273 for (y = 0; y < 8; y++) {
1275 for (x = 0; x < 8; x++) {
1276 dcu += dest_cb[x + y * linesize[1]];
1277 dcv += dest_cr[x + y * linesize[2]];
1280 s->dc_val[1][mb_x + mb_y * s->mb_stride] = (dcu + 4) >> 3;
1281 s->dc_val[2][mb_x + mb_y * s->mb_stride] = (dcv + 4) >> 3;
1285 /* guess DC for damaged blocks */
1286 guess_dc(s, s->dc_val[0], s->mb_width*2, s->mb_height*2, s->b8_stride, 1);
1287 guess_dc(s, s->dc_val[1], s->mb_width , s->mb_height , s->mb_stride, 0);
1288 guess_dc(s, s->dc_val[2], s->mb_width , s->mb_height , s->mb_stride, 0);
1291 /* filter luma DC */
1292 filter181(s->dc_val[0], s->mb_width * 2, s->mb_height * 2, s->b8_stride);
1295 /* render DC only intra */
1296 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
1297 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
1298 uint8_t *dest_y, *dest_cb, *dest_cr;
1299 const int mb_xy = mb_x + mb_y * s->mb_stride;
1300 const int mb_type = s->cur_pic.mb_type[mb_xy];
1302 int error = s->error_status_table[mb_xy];
1304 if (IS_INTER(mb_type))
1306 if (!(error & ER_AC_ERROR))
1307 continue; // undamaged
1309 dest_y = s->cur_pic.f->data[0] + mb_x * 16 + mb_y * 16 * linesize[0];
1310 dest_cb = s->cur_pic.f->data[1] + mb_x * 8 + mb_y * 8 * linesize[1];
1311 dest_cr = s->cur_pic.f->data[2] + mb_x * 8 + mb_y * 8 * linesize[2];
1312 if (!s->cur_pic.f->data[2])
1313 dest_cb = dest_cr = NULL;
1315 put_dc(s, dest_y, dest_cb, dest_cr, mb_x, mb_y);
1320 if (s->avctx->error_concealment & FF_EC_DEBLOCK) {
1321 /* filter horizontal block boundaries */
1322 h_block_filter(s, s->cur_pic.f->data[0], s->mb_width * 2,
1323 s->mb_height * 2, linesize[0], 1);
1325 /* filter vertical block boundaries */
1326 v_block_filter(s, s->cur_pic.f->data[0], s->mb_width * 2,
1327 s->mb_height * 2, linesize[0], 1);
1329 if (s->cur_pic.f->data[2]) {
1330 h_block_filter(s, s->cur_pic.f->data[1], s->mb_width,
1331 s->mb_height, linesize[1], 0);
1332 h_block_filter(s, s->cur_pic.f->data[2], s->mb_width,
1333 s->mb_height, linesize[2], 0);
1334 v_block_filter(s, s->cur_pic.f->data[1], s->mb_width,
1335 s->mb_height, linesize[1], 0);
1336 v_block_filter(s, s->cur_pic.f->data[2], s->mb_width,
1337 s->mb_height, linesize[2], 0);
1342 /* clean a few tables */
1343 for (i = 0; i < s->mb_num; i++) {
1344 const int mb_xy = s->mb_index2xy[i];
1345 int error = s->error_status_table[mb_xy];
1347 if (s->mbskip_table && s->cur_pic.f->pict_type != AV_PICTURE_TYPE_B &&
1348 (error & (ER_DC_ERROR | ER_MV_ERROR | ER_AC_ERROR))) {
1349 s->mbskip_table[mb_xy] = 0;
1351 if (s->mbintra_table)
1352 s->mbintra_table[mb_xy] = 1;
1355 for (i = 0; i < 2; i++) {
1356 av_buffer_unref(&s->ref_index_buf[i]);
1357 av_buffer_unref(&s->motion_val_buf[i]);
1358 s->cur_pic.ref_index[i] = NULL;
1359 s->cur_pic.motion_val[i] = NULL;
1362 memset(&s->cur_pic, 0, sizeof(ERPicture));
1363 memset(&s->last_pic, 0, sizeof(ERPicture));
1364 memset(&s->next_pic, 0, sizeof(ERPicture));