FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/error_resilience.c
Date: 2023-03-31 03:41:15
Exec Total Coverage
Lines: 734 832 88.2%
Functions: 13 13 100.0%
Branches: 504 636 79.2%
Line Branch Exec Source
1 /*
2 * Error resilience / concealment
3 *
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5 *
6 * This file is part of FFmpeg.
7 *
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.
12 *
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.
17 *
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
21 */
22
23 /**
24 * @file
25 * Error resilience / concealment.
26 */
27
28 #include <limits.h>
29
30 #include "libavutil/internal.h"
31 #include "avcodec.h"
32 #include "error_resilience.h"
33 #include "me_cmp.h"
34 #include "mpegutils.h"
35 #include "mpegvideo.h"
36 #include "rectangle.h"
37 #include "threadframe.h"
38
39 /**
40 * @param stride the number of MVs to get to the next row
41 * @param mv_step the number of MVs per row or column in a macroblock
42 */
43 3359 static void set_mv_strides(ERContext *s, ptrdiff_t *mv_step, ptrdiff_t *stride)
44 {
45
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 3359 if (s->avctx->codec_id == AV_CODEC_ID_H264) {
46
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 7 av_assert0(s->quarter_sample);
47 7 *mv_step = 4;
48 7 *stride = s->mb_width * 4;
49 } else {
50 3352 *mv_step = 2;
51 3352 *stride = s->b8_stride;
52 }
53 3359 }
54
55 /**
56 * Replace the current MB with a flat dc-only version.
57 */
58 255 static void put_dc(ERContext *s, uint8_t *dest_y, uint8_t *dest_cb,
59 uint8_t *dest_cr, int mb_x, int mb_y)
60 {
61 255 int *linesize = s->cur_pic.f->linesize;
62 int dc, dcu, dcv, y, i;
63
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 1275 for (i = 0; i < 4; i++) {
64 1020 dc = s->dc_val[0][mb_x * 2 + (i & 1) + (mb_y * 2 + (i >> 1)) * s->b8_stride];
65
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 1020 if (dc < 0)
66 17 dc = 0;
67
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 1003 else if (dc > 2040)
68 8 dc = 2040;
69
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 9180 for (y = 0; y < 8; y++) {
70 int x;
71
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 73440 for (x = 0; x < 8; x++)
72 65280 dest_y[x + (i & 1) * 8 + (y + (i >> 1) * 8) * linesize[0]] = dc / 8;
73 }
74 }
75 255 dcu = s->dc_val[1][mb_x + mb_y * s->mb_stride];
76 255 dcv = s->dc_val[2][mb_x + mb_y * s->mb_stride];
77
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 255 if (dcu < 0)
78 ✗ dcu = 0;
79
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 255 else if (dcu > 2040)
80 ✗ dcu = 2040;
81
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 255 if (dcv < 0)
82 ✗ dcv = 0;
83
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 255 else if (dcv > 2040)
84 ✗ dcv = 2040;
85
86
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 255 if (dest_cr)
87
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 2295 for (y = 0; y < 8; y++) {
88 int x;
89
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 18360 for (x = 0; x < 8; x++) {
90 16320 dest_cb[x + y * linesize[1]] = dcu / 8;
91 16320 dest_cr[x + y * linesize[2]] = dcv / 8;
92 }
93 }
94 255 }
95
96 505 static void filter181(int16_t *data, int width, int height, ptrdiff_t stride)
97 {
98 int x, y;
99
100 /* horizontal filter */
101
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 22061 for (y = 1; y < height - 1; y++) {
102 21556 int prev_dc = data[0 + y * stride];
103
104
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 1319636 for (x = 1; x < width - 1; x++) {
105 int dc;
106 1298080 dc = -prev_dc +
107 1298080 data[x + y * stride] * 8 -
108 1298080 data[x + 1 + y * stride];
109 1298080 dc = (av_clip(dc, INT_MIN/10923, INT_MAX/10923 - 32768) * 10923 + 32768) >> 16;
110 1298080 prev_dc = data[x + y * stride];
111 1298080 data[x + y * stride] = dc;
112 }
113 }
114
115 /* vertical filter */
116
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 27323 for (x = 1; x < width - 1; x++) {
117 26818 int prev_dc = data[x];
118
119
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 1324898 for (y = 1; y < height - 1; y++) {
120 int dc;
121
122 1298080 dc = -prev_dc +
123 1298080 data[x + y * stride] * 8 -
124 1298080 data[x + (y + 1) * stride];
125 1298080 dc = (av_clip(dc, INT_MIN/10923, INT_MAX/10923 - 32768) * 10923 + 32768) >> 16;
126 1298080 prev_dc = data[x + y * stride];
127 1298080 data[x + y * stride] = dc;
128 }
129 }
130 505 }
131
132 /**
133 * guess the dc of blocks which do not have an undamaged dc
134 * @param w width in 8 pixel blocks
135 * @param h height in 8 pixel blocks
136 */
137 1515 static void guess_dc(ERContext *s, int16_t *dc, int w,
138 int h, ptrdiff_t stride, int is_luma)
139 {
140 int b_x, b_y;
141 1515 int16_t (*col )[4] = av_malloc_array(stride, h*sizeof( int16_t)*4);
142 1515 uint32_t (*dist)[4] = av_malloc_array(stride, h*sizeof(uint32_t)*4);
143
144
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 1515 if(!col || !dist) {
145 ✗ av_log(s->avctx, AV_LOG_ERROR, "guess_dc() is out of memory\n");
146 ✗ goto fail;
147 }
148
149
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 46647 for(b_y=0; b_y<h; b_y++){
150 45132 int color= 1024;
151 45132 int distance= -1;
152
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 2140404 for(b_x=0; b_x<w; b_x++){
153 2095272 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
154 2095272 int error_j= s->error_status_table[mb_index_j];
155 2095272 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
156
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 2095272 if(intra_j==0 || !(error_j&ER_DC_ERROR)){
157 2093742 color= dc[b_x + b_y*stride];
158 2093742 distance= b_x;
159 }
160 2095272 col [b_x + b_y*stride][1]= color;
161
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 2095272 dist[b_x + b_y*stride][1]= distance >= 0 ? b_x-distance : 9999;
162 }
163 45132 color= 1024;
164 45132 distance= -1;
165
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 2140404 for(b_x=w-1; b_x>=0; b_x--){
166 2095272 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
167 2095272 int error_j= s->error_status_table[mb_index_j];
168 2095272 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
169
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 2095272 if(intra_j==0 || !(error_j&ER_DC_ERROR)){
170 2093742 color= dc[b_x + b_y*stride];
171 2093742 distance= b_x;
172 }
173 2095272 col [b_x + b_y*stride][0]= color;
174
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 2095272 dist[b_x + b_y*stride][0]= distance >= 0 ? distance-b_x : 9999;
175 }
176 }
177
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 57171 for(b_x=0; b_x<w; b_x++){
178 55656 int color= 1024;
179 55656 int distance= -1;
180
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 2150928 for(b_y=0; b_y<h; b_y++){
181 2095272 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
182 2095272 int error_j= s->error_status_table[mb_index_j];
183 2095272 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
184
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 2095272 if(intra_j==0 || !(error_j&ER_DC_ERROR)){
185 2093742 color= dc[b_x + b_y*stride];
186 2093742 distance= b_y;
187 }
188 2095272 col [b_x + b_y*stride][3]= color;
189
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 2095272 dist[b_x + b_y*stride][3]= distance >= 0 ? b_y-distance : 9999;
190 }
191 55656 color= 1024;
192 55656 distance= -1;
193
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 2150928 for(b_y=h-1; b_y>=0; b_y--){
194 2095272 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
195 2095272 int error_j= s->error_status_table[mb_index_j];
196 2095272 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
197
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 2095272 if(intra_j==0 || !(error_j&ER_DC_ERROR)){
198 2093742 color= dc[b_x + b_y*stride];
199 2093742 distance= b_y;
200 }
201 2095272 col [b_x + b_y*stride][2]= color;
202
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 2095272 dist[b_x + b_y*stride][2]= distance >= 0 ? distance-b_y : 9999;
203 }
204 }
205
206
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 46647 for (b_y = 0; b_y < h; b_y++) {
207
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 2140404 for (b_x = 0; b_x < w; b_x++) {
208 int mb_index, error, j;
209 int64_t guess, weight_sum;
210 2095272 mb_index = (b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride;
211 2095272 error = s->error_status_table[mb_index];
212
213
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 2095272 if (IS_INTER(s->cur_pic.mb_type[mb_index]))
214 1913868 continue; // inter
215
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 181404 if (!(error & ER_DC_ERROR))
216 179874 continue; // dc-ok
217
218 1530 weight_sum = 0;
219 1530 guess = 0;
220
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 7650 for (j = 0; j < 4; j++) {
221 6120 int64_t weight = 256 * 256 * 256 * 16 / FFMAX(dist[b_x + b_y*stride][j], 1);
222 6120 guess += weight*(int64_t)col[b_x + b_y*stride][j];
223 6120 weight_sum += weight;
224 }
225 1530 guess = (guess + weight_sum / 2) / weight_sum;
226 1530 dc[b_x + b_y * stride] = guess;
227 }
228 }
229
230 1515 fail:
231 1515 av_freep(&col);
232 1515 av_freep(&dist);
233 1515 }
234
235 /**
236 * simple horizontal deblocking filter used for error resilience
237 * @param w width in 8 pixel blocks
238 * @param h height in 8 pixel blocks
239 */
240 1515 static void h_block_filter(ERContext *s, uint8_t *dst, int w,
241 int h, ptrdiff_t stride, int is_luma)
242 {
243 int b_x, b_y;
244 ptrdiff_t mvx_stride, mvy_stride;
245 1515 const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
246 1515 set_mv_strides(s, &mvx_stride, &mvy_stride);
247 1515 mvx_stride >>= is_luma;
248 1515 mvy_stride *= mvx_stride;
249
250
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 46647 for (b_y = 0; b_y < h; b_y++) {
251
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 2095272 for (b_x = 0; b_x < w - 1; b_x++) {
252 int y;
253 2050140 int left_status = s->error_status_table[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride];
254 2050140 int right_status = s->error_status_table[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride];
255 2050140 int left_intra = IS_INTRA(s->cur_pic.mb_type[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]);
256 2050140 int right_intra = IS_INTRA(s->cur_pic.mb_type[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride]);
257 2050140 int left_damage = left_status & ER_MB_ERROR;
258 2050140 int right_damage = right_status & ER_MB_ERROR;
259 2050140 int offset = b_x * 8 + b_y * stride * 8;
260 2050140 int16_t *left_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * b_x];
261 2050140 int16_t *right_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * (b_x + 1)];
262
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 2050140 if (!(left_damage || right_damage))
263 2030934 continue; // both undamaged
264
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 19206 if ((!left_intra) && (!right_intra) &&
265 17664 FFABS(left_mv[0] - right_mv[0]) +
266
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 17664 FFABS(left_mv[1] + right_mv[1]) < 2)
267 2456 continue;
268
269
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 150750 for (y = 0; y < 8; y++) {
270 int a, b, c, d;
271
272 134000 a = dst[offset + 7 + y * stride] - dst[offset + 6 + y * stride];
273 134000 b = dst[offset + 8 + y * stride] - dst[offset + 7 + y * stride];
274 134000 c = dst[offset + 9 + y * stride] - dst[offset + 8 + y * stride];
275
276 134000 d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1);
277 134000 d = FFMAX(d, 0);
278
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 134000 if (b < 0)
279 48880 d = -d;
280
281
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 134000 if (d == 0)
282 83771 continue;
283
284
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 50229 if (!(left_damage && right_damage))
285 841 d = d * 16 / 9;
286
287
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 50229 if (left_damage) {
288 49860 dst[offset + 7 + y * stride] = cm[dst[offset + 7 + y * stride] + ((d * 7) >> 4)];
289 49860 dst[offset + 6 + y * stride] = cm[dst[offset + 6 + y * stride] + ((d * 5) >> 4)];
290 49860 dst[offset + 5 + y * stride] = cm[dst[offset + 5 + y * stride] + ((d * 3) >> 4)];
291 49860 dst[offset + 4 + y * stride] = cm[dst[offset + 4 + y * stride] + ((d * 1) >> 4)];
292 }
293
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 50229 if (right_damage) {
294 49757 dst[offset + 8 + y * stride] = cm[dst[offset + 8 + y * stride] - ((d * 7) >> 4)];
295 49757 dst[offset + 9 + y * stride] = cm[dst[offset + 9 + y * stride] - ((d * 5) >> 4)];
296 49757 dst[offset + 10+ y * stride] = cm[dst[offset + 10 + y * stride] - ((d * 3) >> 4)];
297 49757 dst[offset + 11+ y * stride] = cm[dst[offset + 11 + y * stride] - ((d * 1) >> 4)];
298 }
299 }
300 }
301 }
302 1515 }
303
304 /**
305 * simple vertical deblocking filter used for error resilience
306 * @param w width in 8 pixel blocks
307 * @param h height in 8 pixel blocks
308 */
309 1515 static void v_block_filter(ERContext *s, uint8_t *dst, int w, int h,
310 ptrdiff_t stride, int is_luma)
311 {
312 int b_x, b_y;
313 ptrdiff_t mvx_stride, mvy_stride;
314 1515 const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
315 1515 set_mv_strides(s, &mvx_stride, &mvy_stride);
316 1515 mvx_stride >>= is_luma;
317 1515 mvy_stride *= mvx_stride;
318
319
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 45132 for (b_y = 0; b_y < h - 1; b_y++) {
320
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 2083233 for (b_x = 0; b_x < w; b_x++) {
321 int x;
322 2039616 int top_status = s->error_status_table[(b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride];
323 2039616 int bottom_status = s->error_status_table[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride];
324 2039616 int top_intra = IS_INTRA(s->cur_pic.mb_type[(b_x >> is_luma) + ( b_y >> is_luma) * s->mb_stride]);
325 2039616 int bottom_intra = IS_INTRA(s->cur_pic.mb_type[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride]);
326 2039616 int top_damage = top_status & ER_MB_ERROR;
327 2039616 int bottom_damage = bottom_status & ER_MB_ERROR;
328 2039616 int offset = b_x * 8 + b_y * stride * 8;
329
330 2039616 int16_t *top_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * b_x];
331 2039616 int16_t *bottom_mv = s->cur_pic.motion_val[0][mvy_stride * (b_y + 1) + mvx_stride * b_x];
332
333
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 2039616 if (!(top_damage || bottom_damage))
334 2017514 continue; // both undamaged
335
336
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 22102 if ((!top_intra) && (!bottom_intra) &&
337 18868 FFABS(top_mv[0] - bottom_mv[0]) +
338
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 18868 FFABS(top_mv[1] + bottom_mv[1]) < 2)
339 2528 continue;
340
341
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 176166 for (x = 0; x < 8; x++) {
342 int a, b, c, d;
343
344 156592 a = dst[offset + x + 7 * stride] - dst[offset + x + 6 * stride];
345 156592 b = dst[offset + x + 8 * stride] - dst[offset + x + 7 * stride];
346 156592 c = dst[offset + x + 9 * stride] - dst[offset + x + 8 * stride];
347
348 156592 d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1);
349 156592 d = FFMAX(d, 0);
350
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 156592 if (b < 0)
351 61844 d = -d;
352
353
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 156592 if (d == 0)
354 92946 continue;
355
356
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 63646 if (!(top_damage && bottom_damage))
357 18705 d = d * 16 / 9;
358
359
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 63646 if (top_damage) {
360 54076 dst[offset + x + 7 * stride] = cm[dst[offset + x + 7 * stride] + ((d * 7) >> 4)];
361 54076 dst[offset + x + 6 * stride] = cm[dst[offset + x + 6 * stride] + ((d * 5) >> 4)];
362 54076 dst[offset + x + 5 * stride] = cm[dst[offset + x + 5 * stride] + ((d * 3) >> 4)];
363 54076 dst[offset + x + 4 * stride] = cm[dst[offset + x + 4 * stride] + ((d * 1) >> 4)];
364 }
365
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 63646 if (bottom_damage) {
366 54511 dst[offset + x + 8 * stride] = cm[dst[offset + x + 8 * stride] - ((d * 7) >> 4)];
367 54511 dst[offset + x + 9 * stride] = cm[dst[offset + x + 9 * stride] - ((d * 5) >> 4)];
368 54511 dst[offset + x + 10 * stride] = cm[dst[offset + x + 10 * stride] - ((d * 3) >> 4)];
369 54511 dst[offset + x + 11 * stride] = cm[dst[offset + x + 11 * stride] - ((d * 1) >> 4)];
370 }
371 }
372 }
373 }
374 1515 }
375
376 #define MV_FROZEN 8
377 #define MV_CHANGED 4
378 #define MV_UNCHANGED 2
379 #define MV_LISTED 1
380 1081750 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)
381 {
382
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 1081750 if (fixed[mb_xy])
383 1078724 return;
384 3026 fixed[mb_xy] = MV_LISTED;
385 3026 blocklist[ *blocklist_length ][0] = mb_x;
386 3026 blocklist[(*blocklist_length)++][1] = mb_y;
387 }
388
389 329 static void guess_mv(ERContext *s)
390 {
391 int (*blocklist)[2], (*next_blocklist)[2];
392 uint8_t *fixed;
393 329 const ptrdiff_t mb_stride = s->mb_stride;
394 329 const int mb_width = s->mb_width;
395 329 int mb_height = s->mb_height;
396 int i, depth, num_avail;
397 int mb_x, mb_y;
398 ptrdiff_t mot_step, mot_stride;
399 int blocklist_length, next_blocklist_length;
400
401
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 329 if (s->last_pic.f && s->last_pic.f->data[0])
402 319 mb_height = FFMIN(mb_height, (s->last_pic.f->height+15)>>4);
403
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 329 if (s->next_pic.f && s->next_pic.f->data[0])
404 328 mb_height = FFMIN(mb_height, (s->next_pic.f->height+15)>>4);
405
406 329 blocklist = (int (*)[2])s->er_temp_buffer;
407 329 next_blocklist = blocklist + s->mb_stride * s->mb_height;
408 329 fixed = (uint8_t *)(next_blocklist + s->mb_stride * s->mb_height);
409
410 329 set_mv_strides(s, &mot_step, &mot_stride);
411
412 329 num_avail = 0;
413
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 329 if (s->last_pic.motion_val[0])
414 26 ff_thread_await_progress(s->last_pic.tf, mb_height-1, 0);
415
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 279845 for (i = 0; i < mb_width * mb_height; i++) {
416 279516 const int mb_xy = s->mb_index2xy[i];
417 279516 int f = 0;
418 279516 int error = s->error_status_table[mb_xy];
419
420
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 279516 if (IS_INTRA(s->cur_pic.mb_type[mb_xy]))
421 28029 f = MV_FROZEN; // intra // FIXME check
422
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 279516 if (!(error & ER_MV_ERROR))
423 276235 f = MV_FROZEN; // inter with undamaged MV
424
425 279516 fixed[mb_xy] = f;
426
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 279516 if (f == MV_FROZEN)
427 276490 num_avail++;
428
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 3026 else if(s->last_pic.f->data[0] && s->last_pic.motion_val[0]){
429 3026 const int mb_y= mb_xy / s->mb_stride;
430 3026 const int mb_x= mb_xy % s->mb_stride;
431 3026 const int mot_index= (mb_x + mb_y*mot_stride) * mot_step;
432 3026 s->cur_pic.motion_val[0][mot_index][0]= s->last_pic.motion_val[0][mot_index][0];
433 3026 s->cur_pic.motion_val[0][mot_index][1]= s->last_pic.motion_val[0][mot_index][1];
434 3026 s->cur_pic.ref_index[0][4*mb_xy] = s->last_pic.ref_index[0][4*mb_xy];
435 }
436 }
437
438
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 329 if ((!(s->avctx->error_concealment&FF_EC_GUESS_MVS)) ||
439
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 329 num_avail <= FFMAX(mb_width, mb_height) / 2) {
440 ✗ for (mb_y = 0; mb_y < mb_height; mb_y++) {
441 ✗ for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
442 ✗ const int mb_xy = mb_x + mb_y * s->mb_stride;
443 ✗ int mv_dir = (s->last_pic.f && s->last_pic.f->data[0]) ? MV_DIR_FORWARD : MV_DIR_BACKWARD;
444
445 ✗ if (IS_INTRA(s->cur_pic.mb_type[mb_xy]))
446 ✗ continue;
447 ✗ if (!(s->error_status_table[mb_xy] & ER_MV_ERROR))
448 ✗ continue;
449
450 ✗ s->mv[0][0][0] = 0;
451 ✗ s->mv[0][0][1] = 0;
452 ✗ s->decode_mb(s->opaque, 0, mv_dir, MV_TYPE_16X16, &s->mv,
453 mb_x, mb_y, 0, 0);
454 }
455 }
456 ✗ return;
457 }
458
459 329 blocklist_length = 0;
460
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 8444 for (mb_y = 0; mb_y < mb_height; mb_y++) {
461
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 287631 for (mb_x = 0; mb_x < mb_width; mb_x++) {
462 279516 const int mb_xy = mb_x + mb_y * mb_stride;
463
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 279516 if (fixed[mb_xy] == MV_FROZEN) {
464
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 276490 if (mb_x) add_blocklist(blocklist, &blocklist_length, fixed, mb_x - 1, mb_y, mb_xy - 1);
465
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 276490 if (mb_y) add_blocklist(blocklist, &blocklist_length, fixed, mb_x, mb_y - 1, mb_xy - mb_stride);
466
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 276490 if (mb_x+1 < mb_width) add_blocklist(blocklist, &blocklist_length, fixed, mb_x + 1, mb_y, mb_xy + 1);
467
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 276490 if (mb_y+1 < mb_height) add_blocklist(blocklist, &blocklist_length, fixed, mb_x, mb_y + 1, mb_xy + mb_stride);
468 }
469 }
470 }
471
472 329 for (depth = 0; ; depth++) {
473 int changed, pass, none_left;
474 int blocklist_index;
475
476 417 none_left = 1;
477 417 changed = 1;
478
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 1636 for (pass = 0; (changed || pass < 2) && pass < 10; pass++) {
479 1219 changed = 0;
480
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 21981 for (blocklist_index = 0; blocklist_index < blocklist_length; blocklist_index++) {
481 20762 const int mb_x = blocklist[blocklist_index][0];
482 20762 const int mb_y = blocklist[blocklist_index][1];
483 20762 const int mb_xy = mb_x + mb_y * mb_stride;
484 int mv_predictor[8][2];
485 int ref[8];
486 int pred_count;
487 int j;
488 int best_score;
489 int best_pred;
490 int mot_index;
491 int prev_x, prev_y, prev_ref;
492
493
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 20762 if ((mb_x ^ mb_y ^ pass) & 1)
494 12859 continue;
495 av_assert2(fixed[mb_xy] != MV_FROZEN);
496
497
498 av_assert1(!IS_INTRA(s->cur_pic.mb_type[mb_xy]));
499 av_assert1(s->last_pic.f && s->last_pic.f->data[0]);
500
501 10375 j = 0;
502
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 10375 if (mb_x > 0)
503 9916 j |= fixed[mb_xy - 1];
504
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 10375 if (mb_x + 1 < mb_width)
505 9913 j |= fixed[mb_xy + 1];
506
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 10375 if (mb_y > 0)
507 10375 j |= fixed[mb_xy - mb_stride];
508
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 10375 if (mb_y + 1 < mb_height)
509 10292 j |= fixed[mb_xy + mb_stride];
510
511 av_assert2(j & MV_FROZEN);
512
513
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 10375 if (!(j & MV_CHANGED) && pass > 1)
514 2472 continue;
515
516 7903 none_left = 0;
517 7903 pred_count = 0;
518 7903 mot_index = (mb_x + mb_y * mot_stride) * mot_step;
519
520
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 7903 if (mb_x > 0 && fixed[mb_xy - 1] > 1) {
521 6124 mv_predictor[pred_count][0] =
522 6124 s->cur_pic.motion_val[0][mot_index - mot_step][0];
523 6124 mv_predictor[pred_count][1] =
524 6124 s->cur_pic.motion_val[0][mot_index - mot_step][1];
525 6124 ref[pred_count] =
526 6124 s->cur_pic.ref_index[0][4 * (mb_xy - 1)];
527 6124 pred_count++;
528 }
529
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 7903 if (mb_x + 1 < mb_width && fixed[mb_xy + 1] > 1) {
530 6137 mv_predictor[pred_count][0] =
531 6137 s->cur_pic.motion_val[0][mot_index + mot_step][0];
532 6137 mv_predictor[pred_count][1] =
533 6137 s->cur_pic.motion_val[0][mot_index + mot_step][1];
534 6137 ref[pred_count] =
535 6137 s->cur_pic.ref_index[0][4 * (mb_xy + 1)];
536 6137 pred_count++;
537 }
538
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 7903 if (mb_y > 0 && fixed[mb_xy - mb_stride] > 1) {
539 5118 mv_predictor[pred_count][0] =
540 5118 s->cur_pic.motion_val[0][mot_index - mot_stride * mot_step][0];
541 5118 mv_predictor[pred_count][1] =
542 5118 s->cur_pic.motion_val[0][mot_index - mot_stride * mot_step][1];
543 5118 ref[pred_count] =
544 5118 s->cur_pic.ref_index[0][4 * (mb_xy - s->mb_stride)];
545 5118 pred_count++;
546 }
547
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 7903 if (mb_y + 1<mb_height && fixed[mb_xy + mb_stride] > 1) {
548 4796 mv_predictor[pred_count][0] =
549 4796 s->cur_pic.motion_val[0][mot_index + mot_stride * mot_step][0];
550 4796 mv_predictor[pred_count][1] =
551 4796 s->cur_pic.motion_val[0][mot_index + mot_stride * mot_step][1];
552 4796 ref[pred_count] =
553 4796 s->cur_pic.ref_index[0][4 * (mb_xy + s->mb_stride)];
554 4796 pred_count++;
555 }
556
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 7903 if (pred_count == 0)
557 ✗ continue;
558
559
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 7903 if (pred_count > 1) {
560 6589 int sum_x = 0, sum_y = 0, sum_r = 0;
561 int max_x, max_y, min_x, min_y, max_r, min_r;
562
563
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 27450 for (j = 0; j < pred_count; j++) {
564 20861 sum_x += mv_predictor[j][0];
565 20861 sum_y += mv_predictor[j][1];
566 20861 sum_r += ref[j];
567
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 20861 if (j && ref[j] != ref[j - 1])
568 ✗ goto skip_mean_and_median;
569 }
570
571 /* mean */
572 6589 mv_predictor[pred_count][0] = sum_x / j;
573 6589 mv_predictor[pred_count][1] = sum_y / j;
574 6589 ref[pred_count] = sum_r / j;
575
576 /* median */
577
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 6589 if (pred_count >= 3) {
578 6014 min_y = min_x = min_r = 99999;
579 6014 max_y = max_x = max_r = -99999;
580 } else {
581 575 min_x = min_y = max_x = max_y = min_r = max_r = 0;
582 }
583
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 27450 for (j = 0; j < pred_count; j++) {
584 20861 max_x = FFMAX(max_x, mv_predictor[j][0]);
585 20861 max_y = FFMAX(max_y, mv_predictor[j][1]);
586 20861 max_r = FFMAX(max_r, ref[j]);
587 20861 min_x = FFMIN(min_x, mv_predictor[j][0]);
588 20861 min_y = FFMIN(min_y, mv_predictor[j][1]);
589 20861 min_r = FFMIN(min_r, ref[j]);
590 }
591 6589 mv_predictor[pred_count + 1][0] = sum_x - max_x - min_x;
592 6589 mv_predictor[pred_count + 1][1] = sum_y - max_y - min_y;
593 6589 ref[pred_count + 1] = sum_r - max_r - min_r;
594
595
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 6589 if (pred_count == 4) {
596 1669 mv_predictor[pred_count + 1][0] /= 2;
597 1669 mv_predictor[pred_count + 1][1] /= 2;
598 1669 ref[pred_count + 1] /= 2;
599 }
600 6589 pred_count += 2;
601 }
602
603 1314 skip_mean_and_median:
604 /* zero MV */
605 7903 mv_predictor[pred_count][0] =
606 7903 mv_predictor[pred_count][1] =
607 7903 ref[pred_count] = 0;
608 7903 pred_count++;
609
610 7903 prev_x = s->cur_pic.motion_val[0][mot_index][0];
611 7903 prev_y = s->cur_pic.motion_val[0][mot_index][1];
612 7903 prev_ref = s->cur_pic.ref_index[0][4 * mb_xy];
613
614 /* last MV */
615 7903 mv_predictor[pred_count][0] = prev_x;
616 7903 mv_predictor[pred_count][1] = prev_y;
617 7903 ref[pred_count] = prev_ref;
618 7903 pred_count++;
619
620 7903 best_pred = 0;
621 7903 best_score = 256 * 256 * 256 * 64;
622
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 59062 for (j = 0; j < pred_count; j++) {
623 51159 int *linesize = s->cur_pic.f->linesize;
624 51159 int score = 0;
625 51159 uint8_t *src = s->cur_pic.f->data[0] +
626 51159 mb_x * 16 + mb_y * 16 * linesize[0];
627
628 51159 s->cur_pic.motion_val[0][mot_index][0] =
629 51159 s->mv[0][0][0] = mv_predictor[j][0];
630 51159 s->cur_pic.motion_val[0][mot_index][1] =
631 51159 s->mv[0][0][1] = mv_predictor[j][1];
632
633 // predictor intra or otherwise not available
634
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 51159 if (ref[j] < 0)
635 ✗ continue;
636
637 51159 s->decode_mb(s->opaque, ref[j], MV_DIR_FORWARD,
638 MV_TYPE_16X16, &s->mv, mb_x, mb_y, 0, 0);
639
640
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 51159 if (mb_x > 0 && fixed[mb_xy - 1] > 1) {
641 int k;
642
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 753508 for (k = 0; k < 16; k++)
643 709184 score += FFABS(src[k * linesize[0] - 1] -
644 src[k * linesize[0]]);
645 }
646
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 51159 if (mb_x + 1 < mb_width && fixed[mb_xy + 1] > 1) {
647 int k;
648
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 754222 for (k = 0; k < 16; k++)
649 709856 score += FFABS(src[k * linesize[0] + 15] -
650 src[k * linesize[0] + 16]);
651 }
652
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 51159 if (mb_y > 0 && fixed[mb_xy - mb_stride] > 1) {
653 int k;
654
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 584477 for (k = 0; k < 16; k++)
655 550096 score += FFABS(src[k - linesize[0]] - src[k]);
656 }
657
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 51159 if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride] > 1) {
658 int k;
659
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 551208 for (k = 0; k < 16; k++)
660 518784 score += FFABS(src[k + linesize[0] * 15] -
661 src[k + linesize[0] * 16]);
662 }
663
664
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 51159 if (score <= best_score) { // <= will favor the last MV
665 26196 best_score = score;
666 26196 best_pred = j;
667 }
668 }
669 7903 s->mv[0][0][0] = mv_predictor[best_pred][0];
670 7903 s->mv[0][0][1] = mv_predictor[best_pred][1];
671
672
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 23709 for (i = 0; i < mot_step; i++)
673
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 47418 for (j = 0; j < mot_step; j++) {
674 31612 s->cur_pic.motion_val[0][mot_index + i + j * mot_stride][0] = s->mv[0][0][0];
675 31612 s->cur_pic.motion_val[0][mot_index + i + j * mot_stride][1] = s->mv[0][0][1];
676 }
677
678 7903 s->decode_mb(s->opaque, ref[best_pred], MV_DIR_FORWARD,
679 MV_TYPE_16X16, &s->mv, mb_x, mb_y, 0, 0);
680
681
682
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 7903 if (s->mv[0][0][0] != prev_x || s->mv[0][0][1] != prev_y) {
683 3425 fixed[mb_xy] = MV_CHANGED;
684 3425 changed++;
685 } else
686 4478 fixed[mb_xy] = MV_UNCHANGED;
687 }
688 }
689
690
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 417 if (none_left)
691 329 return;
692
693 88 next_blocklist_length = 0;
694
695
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 3114 for (blocklist_index = 0; blocklist_index < blocklist_length; blocklist_index++) {
696 3026 const int mb_x = blocklist[blocklist_index][0];
697 3026 const int mb_y = blocklist[blocklist_index][1];
698 3026 const int mb_xy = mb_x + mb_y * mb_stride;
699
700
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 3026 if (fixed[mb_xy] & (MV_CHANGED|MV_UNCHANGED|MV_FROZEN)) {
701 3026 fixed[mb_xy] = MV_FROZEN;
702
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 3026 if (mb_x > 0)
703 2890 add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x - 1, mb_y, mb_xy - 1);
704
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 3026 if (mb_y > 0)
705 3026 add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x, mb_y - 1, mb_xy - mb_stride);
706
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 3026 if (mb_x + 1 < mb_width)
707 2891 add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x + 1, mb_y, mb_xy + 1);
708
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 3026 if (mb_y + 1 < mb_height)
709 2992 add_blocklist(next_blocklist, &next_blocklist_length, fixed, mb_x, mb_y + 1, mb_xy + mb_stride);
710 }
711 }
712
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 88 av_assert0(next_blocklist_length <= mb_height * mb_width);
713 88 FFSWAP(int , blocklist_length, next_blocklist_length);
714 88 FFSWAP(void*, blocklist, next_blocklist);
715 }
716 }
717
718 505 static int is_intra_more_likely(ERContext *s)
719 {
720 int is_intra_likely, i, j, undamaged_count, skip_amount, mb_x, mb_y;
721
722
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 505 if (!s->last_pic.f || !s->last_pic.f->data[0])
723 10 return 1; // no previous frame available -> use spatial prediction
724
725
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 495 if (s->avctx->error_concealment & FF_EC_FAVOR_INTER)
726 ✗ return 0;
727
728 495 undamaged_count = 0;
729
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 339723 for (i = 0; i < s->mb_num; i++) {
730 339228 const int mb_xy = s->mb_index2xy[i];
731 339228 const int error = s->error_status_table[mb_xy];
732
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 339228 if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR)))
733 336202 undamaged_count++;
734 }
735
736
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 495 if (undamaged_count < 5)
737 ✗ return 0; // almost all MBs damaged -> use temporal prediction
738
739
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 495 skip_amount = FFMAX(undamaged_count / 50, 1); // check only up to 50 MBs
740 495 is_intra_likely = 0;
741
742 495 j = 0;
743
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 11016 for (mb_y = 0; mb_y < s->mb_height - 1; mb_y++) {
744
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 336168 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
745 int error;
746 325647 const int mb_xy = mb_x + mb_y * s->mb_stride;
747
748 325647 error = s->error_status_table[mb_xy];
749
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 325647 if ((error & ER_DC_ERROR) && (error & ER_MV_ERROR))
750 2992 continue; // skip damaged
751
752 322655 j++;
753 // skip a few to speed things up
754
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 322655 if ((j % skip_amount) != 0)
755 296918 continue;
756
757
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 25737 if (s->cur_pic.f->pict_type == AV_PICTURE_TYPE_I) {
758 1383 int *linesize = s->cur_pic.f->linesize;
759 1383 uint8_t *mb_ptr = s->cur_pic.f->data[0] +
760 1383 mb_x * 16 + mb_y * 16 * linesize[0];
761 1383 uint8_t *last_mb_ptr = s->last_pic.f->data[0] +
762 1383 mb_x * 16 + mb_y * 16 * linesize[0];
763
764
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 1383 if (s->avctx->codec_id == AV_CODEC_ID_H264) {
765 // FIXME
766 } else {
767 1383 ff_thread_await_progress(s->last_pic.tf, mb_y, 0);
768 }
769 2766 is_intra_likely += s->sad(NULL, last_mb_ptr, mb_ptr,
770 1383 linesize[0], 16);
771 // FIXME need await_progress() here
772 1383 is_intra_likely -= s->sad(NULL, last_mb_ptr,
773 1383 last_mb_ptr + linesize[0] * 16,
774 1383 linesize[0], 16);
775 } else {
776
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 24354 if (IS_INTRA(s->cur_pic.mb_type[mb_xy]))
777 1107 is_intra_likely++;
778 else
779 23247 is_intra_likely--;
780 }
781 }
782 }
783 // av_log(NULL, AV_LOG_ERROR, "is_intra_likely: %d type:%d\n", is_intra_likely, s->pict_type);
784 495 return is_intra_likely > 0;
785 }
786
787 34992 void ff_er_frame_start(ERContext *s)
788 {
789
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 34992 if (!s->avctx->error_concealment)
790 224 return;
791
792
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 34768 if (!s->mecc_inited) {
793 MECmpContext mecc;
794 773 ff_me_cmp_init(&mecc, s->avctx);
795 773 s->sad = mecc.sad[0];
796 773 s->mecc_inited = 1;
797 }
798
799 34768 memset(s->error_status_table, ER_MB_ERROR | VP_START | ER_MB_END,
800 34768 s->mb_stride * s->mb_height * sizeof(uint8_t));
801 34768 atomic_init(&s->error_count, 3 * s->mb_num);
802 34768 s->error_occurred = 0;
803 }
804
805 108415 static int er_supported(ERContext *s)
806 {
807
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 108415 if(s->avctx->hwaccel && s->avctx->hwaccel->decode_slice ||
808
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 108415 !s->cur_pic.f
809 )
810 11133 return 0;
811 97282 return 1;
812 }
813
814 /**
815 * Add a slice.
816 * @param endx x component of the last macroblock, can be -1
817 * for the last of the previous line
818 * @param status the status at the end (ER_MV_END, ER_AC_ERROR, ...), it is
819 * assumed that no earlier end or error of the same type occurred
820 */
821 175079 void ff_er_add_slice(ERContext *s, int startx, int starty,
822 int endx, int endy, int status)
823 {
824 175079 const int start_i = av_clip(startx + starty * s->mb_width, 0, s->mb_num - 1);
825 175079 const int end_i = av_clip(endx + endy * s->mb_width, 0, s->mb_num);
826 175079 const int start_xy = s->mb_index2xy[start_i];
827 175079 const int end_xy = s->mb_index2xy[end_i];
828 175079 int mask = -1;
829
830
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 175079 if (s->avctx->hwaccel && s->avctx->hwaccel->decode_slice)
831 ✗ return;
832
833
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 175079 if (start_i > end_i || start_xy > end_xy) {
834 ✗ av_log(s->avctx, AV_LOG_ERROR,
835 "internal error, slice end before start\n");
836 ✗ return;
837 }
838
839
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 175079 if (!s->avctx->error_concealment)
840 10964 return;
841
842 164115 mask &= ~VP_START;
843
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 164115 if (status & (ER_AC_ERROR | ER_AC_END)) {
844 161158 mask &= ~(ER_AC_ERROR | ER_AC_END);
845 161158 atomic_fetch_add(&s->error_count, start_i - end_i - 1);
846 }
847
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 164115 if (status & (ER_DC_ERROR | ER_DC_END)) {
848 161158 mask &= ~(ER_DC_ERROR | ER_DC_END);
849 161158 atomic_fetch_add(&s->error_count, start_i - end_i - 1);
850 }
851
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 164115 if (status & (ER_MV_ERROR | ER_MV_END)) {
852 161158 mask &= ~(ER_MV_ERROR | ER_MV_END);
853 161158 atomic_fetch_add(&s->error_count, start_i - end_i - 1);
854 }
855
856
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 164115 if (status & ER_MB_ERROR) {
857 2 s->error_occurred = 1;
858 2 atomic_store(&s->error_count, INT_MAX);
859 }
860
861
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✓ Branch 1 taken 4685 times.
 164115 if (mask == ~0x7F) {
862 159430 memset(&s->error_status_table[start_xy], 0,
863 159430 (end_xy - start_xy) * sizeof(uint8_t));
864 } else {
865 int i;
866
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 414133 for (i = start_xy; i < end_xy; i++)
867 409448 s->error_status_table[i] &= mask;
868 }
869
870
2/2
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✓ Branch 1 taken 160279 times.
 164115 if (end_i == s->mb_num)
871 3836 atomic_store(&s->error_count, INT_MAX);
872 else {
873 160279 s->error_status_table[end_xy] &= mask;
874 160279 s->error_status_table[end_xy] |= status;
875 }
876
877 164115 s->error_status_table[start_xy] |= VP_START;
878
879
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✓ Branch 5 taken 11133 times.
 272025 if (start_xy > 0 && !(s->avctx->active_thread_type & FF_THREAD_SLICE) &&
880
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✗ Branch 2 not taken.
 204687 er_supported(s) && s->avctx->skip_top * s->mb_width < start_i) {
881 96777 int prev_status = s->error_status_table[s->mb_index2xy[start_i - 1]];
882
883 96777 prev_status &= ~ VP_START;
884
2/2
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✓ Branch 1 taken 96225 times.
 96777 if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END)) {
885 552 s->error_occurred = 1;
886 552 atomic_store(&s->error_count, INT_MAX);
887 }
888 }
889 }
890
891 30535 void ff_er_frame_end(ERContext *s)
892 {
893 30535 int *linesize = NULL;
894 int i, mb_x, mb_y, error, error_type, dc_error, mv_error, ac_error;
895 int distance;
896 30535 int threshold_part[4] = { 100, 100, 100 };
897 30535 int threshold = 50;
898 int is_intra_likely;
899 30535 int size = s->b8_stride * 2 * s->mb_height;
900
901 /* We do not support ER of field pictures yet,
902 * though it should not crash if enabled. */
903
4/4
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 30535 if (!s->avctx->error_concealment || !atomic_load(&s->error_count) ||
904
2/4
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 1010 s->avctx->lowres ||
905 505 !er_supported(s) ||
906 505 atomic_load(&s->error_count) == 3 * s->mb_width *
907
1/2
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✓ Branch 1 taken 505 times.
 505 (s->avctx->skip_top + s->avctx->skip_bottom)) {
908 30030 return;
909 }
910
911
5/6
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✓ Branch 2 taken 30 times.
✓ Branch 3 taken 6 times.
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✓ Branch 5 taken 30 times.
 505 if (!s->warned_fields && (s->cur_pic.field_picture || s->cur_pic.f->interlaced_frame)) {
912 6 av_log(s->avctx, AV_LOG_WARNING, "Error concealment is not fully implemented for field pictures.\n");
913 6 s->warned_fields = 1;
914 }
915
916 505 linesize = s->cur_pic.f->linesize;
917
918
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 505 if ( s->avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO
919
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 475 && (FFALIGN(s->avctx->height, 16)&16)
920 ✗ && atomic_load(&s->error_count) == 3 * s->mb_width * (s->avctx->skip_top + s->avctx->skip_bottom + 1)) {
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];
923 ✗ if (status != 0x7F)
924 ✗ break;
925 }
926
927 ✗ if (mb_x == s->mb_width) {
928 ✗ av_log(s->avctx, AV_LOG_DEBUG, "ignoring last missing slice\n");
929 ✗ return;
930 }
931 }
932
933
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✓ Branch 1 taken 10 times.
 505 if (s->last_pic.f) {
934
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 495 if (s->last_pic.f->width != s->cur_pic.f->width ||
935
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 495 s->last_pic.f->height != s->cur_pic.f->height ||
936
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 495 s->last_pic.f->format != s->cur_pic.f->format) {
937 ✗ av_log(s->avctx, AV_LOG_WARNING, "Cannot use previous picture in error concealment\n");
938 ✗ memset(&s->last_pic, 0, sizeof(s->last_pic));
939 }
940 }
941
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 505 if (s->next_pic.f) {
942
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 504 if (s->next_pic.f->width != s->cur_pic.f->width ||
943
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 504 s->next_pic.f->height != s->cur_pic.f->height ||
944
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 504 s->next_pic.f->format != s->cur_pic.f->format) {
945 ✗ av_log(s->avctx, AV_LOG_WARNING, "Cannot use next picture in error concealment\n");
946 ✗ memset(&s->next_pic, 0, sizeof(s->next_pic));
947 }
948 }
949
950
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 505 if (!s->cur_pic.motion_val[0] || !s->cur_pic.ref_index[0]) {
951 475 av_log(s->avctx, AV_LOG_ERROR, "Warning MVs not available\n");
952
953
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 1425 for (i = 0; i < 2; i++) {
954 950 s->ref_index[i] = av_calloc(s->mb_stride * s->mb_height, 4 * sizeof(uint8_t));
955 950 s->motion_val_base[i] = av_calloc(size + 4, 2 * sizeof(uint16_t));
956
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 950 if (!s->ref_index[i] || !s->motion_val_base[i])
957 break;
958 950 s->cur_pic.ref_index[i] = s->ref_index[i];
959 950 s->cur_pic.motion_val[i] = s->motion_val_base[i] + 4;
960 }
961
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 475 if (i < 2) {
962 ✗ for (i = 0; i < 2; i++) {
963 ✗ av_freep(&s->ref_index[i]);
964 ✗ av_freep(&s->motion_val_base[i]);
965 ✗ s->cur_pic.ref_index[i] = NULL;
966 ✗ s->cur_pic.motion_val[i] = NULL;
967 }
968 ✗ return;
969 }
970 }
971
972
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 505 if (s->avctx->debug & FF_DEBUG_ER) {
973 ✗ for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
974 ✗ for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
975 ✗ int status = s->error_status_table[mb_x + mb_y * s->mb_stride];
976
977 ✗ av_log(s->avctx, AV_LOG_DEBUG, "%2X ", status);
978 }
979 ✗ av_log(s->avctx, AV_LOG_DEBUG, "\n");
980 }
981 }
982
983 #if 1
984 /* handle overlapping slices */
985
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 2020 for (error_type = 1; error_type <= 3; error_type++) {
986 1515 int end_ok = 0;
987
988
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 1049151 for (i = s->mb_num - 1; i >= 0; i--) {
989 1047636 const int mb_xy = s->mb_index2xy[i];
990 1047636 int error = s->error_status_table[mb_xy];
991
992
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 1047636 if (error & (1 << error_type))
993 9696 end_ok = 1;
994
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 1047636 if (error & (8 << error_type))
995 26202 end_ok = 1;
996
997
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 1047636 if (!end_ok)
998 ✗ s->error_status_table[mb_xy] |= 1 << error_type;
999
1000
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 1047636 if (error & VP_START)
1001 26205 end_ok = 0;
1002 }
1003 }
1004 #endif
1005 #if 1
1006 /* handle slices with partitions of different length */
1007
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 505 if (s->partitioned_frame) {
1008 29 int end_ok = 0;
1009
1010
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 11513 for (i = s->mb_num - 1; i >= 0; i--) {
1011 11484 const int mb_xy = s->mb_index2xy[i];
1012 11484 int error = s->error_status_table[mb_xy];
1013
1014
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 11484 if (error & ER_AC_END)
1015 3312 end_ok = 0;
1016
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 11484 if ((error & ER_MV_END) ||
1017
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 8172 (error & ER_DC_END) ||
1018
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 8172 (error & ER_AC_ERROR))
1019 3312 end_ok = 1;
1020
1021
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 11484 if (!end_ok)
1022 ✗ s->error_status_table[mb_xy]|= ER_AC_ERROR;
1023
1024
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 11484 if (error & VP_START)
1025 3312 end_ok = 0;
1026 }
1027 }
1028 #endif
1029 /* handle missing slices */
1030
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 505 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1031 ✗ int end_ok = 1;
1032
1033 // FIXME + 100 hack
1034 ✗ for (i = s->mb_num - 2; i >= s->mb_width + 100; i--) {
1035 ✗ const int mb_xy = s->mb_index2xy[i];
1036 ✗ int error1 = s->error_status_table[mb_xy];
1037 ✗ int error2 = s->error_status_table[s->mb_index2xy[i + 1]];
1038
1039 ✗ if (error1 & VP_START)
1040 ✗ end_ok = 1;
1041
1042 ✗ if (error2 == (VP_START | ER_MB_ERROR | ER_MB_END) &&
1043 ✗ error1 != (VP_START | ER_MB_ERROR | ER_MB_END) &&
1044 ✗ ((error1 & ER_AC_END) || (error1 & ER_DC_END) ||
1045 ✗ (error1 & ER_MV_END))) {
1046 // end & uninit
1047 ✗ end_ok = 0;
1048 }
1049
1050 ✗ if (!end_ok)
1051 ✗ s->error_status_table[mb_xy] |= ER_MB_ERROR;
1052 }
1053 }
1054
1055 #if 1
1056 /* backward mark errors */
1057 505 distance = 9999999;
1058
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 2020 for (error_type = 1; error_type <= 3; error_type++) {
1059
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 1049151 for (i = s->mb_num - 1; i >= 0; i--) {
1060 1047636 const int mb_xy = s->mb_index2xy[i];
1061 1047636 int error = s->error_status_table[mb_xy];
1062
1063
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 1047636 if (!s->mbskip_table || !s->mbskip_table[mb_xy]) // FIXME partition specific
1064 928506 distance++;
1065
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 1047636 if (error & (1 << error_type))
1066 9696 distance = 0;
1067
1068
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✓ Branch 1 taken 1013184 times.
 1047636 if (s->partitioned_frame) {
1069
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✓ Branch 1 taken 24906 times.
 34452 if (distance < threshold_part[error_type - 1])
1070 9546 s->error_status_table[mb_xy] |= 1 << error_type;
1071 } else {
1072
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 1013184 if (distance < threshold)
1073 297 s->error_status_table[mb_xy] |= 1 << error_type;
1074 }
1075
1076
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 1047636 if (error & VP_START)
1077 26205 distance = 9999999;
1078 }
1079 }
1080 #endif
1081
1082 /* forward mark errors */
1083 505 error = 0;
1084
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 349717 for (i = 0; i < s->mb_num; i++) {
1085 349212 const int mb_xy = s->mb_index2xy[i];
1086 349212 int old_error = s->error_status_table[mb_xy];
1087
1088
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 349212 if (old_error & VP_START) {
1089 8735 error = old_error & ER_MB_ERROR;
1090 } else {
1091 340477 error |= old_error & ER_MB_ERROR;
1092 340477 s->error_status_table[mb_xy] |= error;
1093 }
1094 }
1095 #if 1
1096 /* handle not partitioned case */
1097
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 505 if (!s->partitioned_frame) {
1098
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 338204 for (i = 0; i < s->mb_num; i++) {
1099 337728 const int mb_xy = s->mb_index2xy[i];
1100 337728 int error = s->error_status_table[mb_xy];
1101
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 337728 if (error & ER_MB_ERROR)
1102 99 error |= ER_MB_ERROR;
1103 337728 s->error_status_table[mb_xy] = error;
1104 }
1105 }
1106 #endif
1107
1108 505 dc_error = ac_error = mv_error = 0;
1109
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✓ Branch 1 taken 505 times.
 349717 for (i = 0; i < s->mb_num; i++) {
1110 349212 const int mb_xy = s->mb_index2xy[i];
1111 349212 int error = s->error_status_table[mb_xy];
1112
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✓ Branch 1 taken 345931 times.
 349212 if (error & ER_DC_ERROR)
1113 3281 dc_error++;
1114
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 349212 if (error & ER_AC_ERROR)
1115 3281 ac_error++;
1116
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 349212 if (error & ER_MV_ERROR)
1117 3281 mv_error++;
1118 }
1119 505 av_log(s->avctx, AV_LOG_INFO, "concealing %d DC, %d AC, %d MV errors in %c frame\n",
1120 505 dc_error, ac_error, mv_error, av_get_picture_type_char(s->cur_pic.f->pict_type));
1121
1122 505 s->cur_pic.f->decode_error_flags |= FF_DECODE_ERROR_CONCEALMENT_ACTIVE;
1123
1124 505 is_intra_likely = is_intra_more_likely(s);
1125
1126 /* set unknown mb-type to most likely */
1127
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 349717 for (i = 0; i < s->mb_num; i++) {
1128 349212 const int mb_xy = s->mb_index2xy[i];
1129 349212 int error = s->error_status_table[mb_xy];
1130
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 349212 if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR)))
1131 345931 continue;
1132
1133
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 3281 if (is_intra_likely)
1134 255 s->cur_pic.mb_type[mb_xy] = MB_TYPE_INTRA4x4;
1135 else
1136 3026 s->cur_pic.mb_type[mb_xy] = MB_TYPE_16x16 | MB_TYPE_L0;
1137 }
1138
1139 // change inter to intra blocks if no reference frames are available
1140
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 505 if (!(s->last_pic.f && s->last_pic.f->data[0]) &&
1141
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 10 !(s->next_pic.f && s->next_pic.f->data[0]))
1142
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 301 for (i = 0; i < s->mb_num; i++) {
1143 300 const int mb_xy = s->mb_index2xy[i];
1144
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 300 if (!IS_INTRA(s->cur_pic.mb_type[mb_xy]))
1145 ✗ s->cur_pic.mb_type[mb_xy] = MB_TYPE_INTRA4x4;
1146 }
1147
1148 /* handle inter blocks with damaged AC */
1149
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 11788 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
1150
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 360495 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
1151 349212 const int mb_xy = mb_x + mb_y * s->mb_stride;
1152 349212 const int mb_type = s->cur_pic.mb_type[mb_xy];
1153
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 349212 const int dir = !(s->last_pic.f && s->last_pic.f->data[0]);
1154
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 349212 const int mv_dir = dir ? MV_DIR_BACKWARD : MV_DIR_FORWARD;
1155 int mv_type;
1156
1157 349212 int error = s->error_status_table[mb_xy];
1158
1159
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 349212 if (IS_INTRA(mb_type))
1160 30234 continue; // intra
1161
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 318978 if (error & ER_MV_ERROR)
1162 3026 continue; // inter with damaged MV
1163
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 315952 if (!(error & ER_AC_ERROR))
1164 315952 continue; // undamaged inter
1165
1166 ✗ if (IS_8X8(mb_type)) {
1167 ✗ int mb_index = mb_x * 2 + mb_y * 2 * s->b8_stride;
1168 int j;
1169 ✗ mv_type = MV_TYPE_8X8;
1170 ✗ for (j = 0; j < 4; j++) {
1171 ✗ s->mv[0][j][0] = s->cur_pic.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][0];
1172 ✗ s->mv[0][j][1] = s->cur_pic.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][1];
1173 }
1174 } else {
1175 ✗ mv_type = MV_TYPE_16X16;
1176 ✗ s->mv[0][0][0] = s->cur_pic.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][0];
1177 ✗ s->mv[0][0][1] = s->cur_pic.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][1];
1178 }
1179
1180 ✗ s->decode_mb(s->opaque, 0 /* FIXME H.264 partitioned slices need this set */,
1181 mv_dir, mv_type, &s->mv, mb_x, mb_y, 0, 0);
1182 }
1183 }
1184
1185 /* guess MVs */
1186
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 505 if (s->cur_pic.f->pict_type == AV_PICTURE_TYPE_B) {
1187
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 3344 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
1188
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 72864 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
1189 69696 int xy = mb_x * 2 + mb_y * 2 * s->b8_stride;
1190 69696 const int mb_xy = mb_x + mb_y * s->mb_stride;
1191 69696 const int mb_type = s->cur_pic.mb_type[mb_xy];
1192 69696 int mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
1193
1194 69696 int error = s->error_status_table[mb_xy];
1195
1196
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 69696 if (IS_INTRA(mb_type))
1197 2205 continue;
1198
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 67491 if (!(error & ER_MV_ERROR))
1199 67491 continue; // inter with undamaged MV
1200 ✗ if (!(error & ER_AC_ERROR))
1201 ✗ continue; // undamaged inter
1202
1203 ✗ if (!(s->last_pic.f && s->last_pic.f->data[0]))
1204 ✗ mv_dir &= ~MV_DIR_FORWARD;
1205 ✗ if (!(s->next_pic.f && s->next_pic.f->data[0]))
1206 ✗ mv_dir &= ~MV_DIR_BACKWARD;
1207
1208 ✗ if (s->pp_time) {
1209 ✗ int time_pp = s->pp_time;
1210 ✗ int time_pb = s->pb_time;
1211
1212 ✗ av_assert0(s->avctx->codec_id != AV_CODEC_ID_H264);
1213 ✗ ff_thread_await_progress(s->next_pic.tf, mb_y, 0);
1214
1215 ✗ s->mv[0][0][0] = s->next_pic.motion_val[0][xy][0] * time_pb / time_pp;
1216 ✗ s->mv[0][0][1] = s->next_pic.motion_val[0][xy][1] * time_pb / time_pp;
1217 ✗ s->mv[1][0][0] = s->next_pic.motion_val[0][xy][0] * (time_pb - time_pp) / time_pp;
1218 ✗ s->mv[1][0][1] = s->next_pic.motion_val[0][xy][1] * (time_pb - time_pp) / time_pp;
1219 } else {
1220 ✗ s->mv[0][0][0] = 0;
1221 ✗ s->mv[0][0][1] = 0;
1222 ✗ s->mv[1][0][0] = 0;
1223 ✗ s->mv[1][0][1] = 0;
1224 }
1225
1226 ✗ s->decode_mb(s->opaque, 0, mv_dir, MV_TYPE_16X16, &s->mv,
1227 mb_x, mb_y, 0, 0);
1228 }
1229 }
1230 } else
1231 329 guess_mv(s);
1232
1233 /* fill DC for inter blocks */
1234
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 11788 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
1235
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 360495 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
1236 int dc, dcu, dcv, y, n;
1237 int16_t *dc_ptr;
1238 uint8_t *dest_y, *dest_cb, *dest_cr;
1239 349212 const int mb_xy = mb_x + mb_y * s->mb_stride;
1240 349212 const int mb_type = s->cur_pic.mb_type[mb_xy];
1241
1242 // error = s->error_status_table[mb_xy];
1243
1244
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 349212 if (IS_INTRA(mb_type) && s->partitioned_frame)
1245 3855 continue;
1246 // if (error & ER_MV_ERROR)
1247 // continue; // inter data damaged FIXME is this good?
1248
1249 345357 dest_y = s->cur_pic.f->data[0] + mb_x * 16 + mb_y * 16 * linesize[0];
1250 345357 dest_cb = s->cur_pic.f->data[1] + mb_x * 8 + mb_y * 8 * linesize[1];
1251 345357 dest_cr = s->cur_pic.f->data[2] + mb_x * 8 + mb_y * 8 * linesize[2];
1252
1253 345357 dc_ptr = &s->dc_val[0][mb_x * 2 + mb_y * 2 * s->b8_stride];
1254
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 1726785 for (n = 0; n < 4; n++) {
1255 1381428 dc = 0;
1256
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 12432852 for (y = 0; y < 8; y++) {
1257 int x;
1258
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 99462816 for (x = 0; x < 8; x++)
1259 88411392 dc += dest_y[x + (n & 1) * 8 +
1260 88411392 (y + (n >> 1) * 8) * linesize[0]];
1261 }
1262 1381428 dc_ptr[(n & 1) + (n >> 1) * s->b8_stride] = (dc + 4) >> 3;
1263 }
1264
1265
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 345357 if (!s->cur_pic.f->data[2])
1266 ✗ continue;
1267
1268 345357 dcu = dcv = 0;
1269
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 3108213 for (y = 0; y < 8; y++) {
1270 int x;
1271
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 24865704 for (x = 0; x < 8; x++) {
1272 22102848 dcu += dest_cb[x + y * linesize[1]];
1273 22102848 dcv += dest_cr[x + y * linesize[2]];
1274 }
1275 }
1276 345357 s->dc_val[1][mb_x + mb_y * s->mb_stride] = (dcu + 4) >> 3;
1277 345357 s->dc_val[2][mb_x + mb_y * s->mb_stride] = (dcv + 4) >> 3;
1278 }
1279 }
1280 #if 1
1281 /* guess DC for damaged blocks */
1282 505 guess_dc(s, s->dc_val[0], s->mb_width*2, s->mb_height*2, s->b8_stride, 1);
1283 505 guess_dc(s, s->dc_val[1], s->mb_width , s->mb_height , s->mb_stride, 0);
1284 505 guess_dc(s, s->dc_val[2], s->mb_width , s->mb_height , s->mb_stride, 0);
1285 #endif
1286
1287 /* filter luma DC */
1288 505 filter181(s->dc_val[0], s->mb_width * 2, s->mb_height * 2, s->b8_stride);
1289
1290 #if 1
1291 /* render DC only intra */
1292
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 11788 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
1293
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 360495 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
1294 uint8_t *dest_y, *dest_cb, *dest_cr;
1295 349212 const int mb_xy = mb_x + mb_y * s->mb_stride;
1296 349212 const int mb_type = s->cur_pic.mb_type[mb_xy];
1297
1298 349212 int error = s->error_status_table[mb_xy];
1299
1300
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 349212 if (IS_INTER(mb_type))
1301 318978 continue;
1302
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 30234 if (!(error & ER_AC_ERROR))
1303 29979 continue; // undamaged
1304
1305 255 dest_y = s->cur_pic.f->data[0] + mb_x * 16 + mb_y * 16 * linesize[0];
1306 255 dest_cb = s->cur_pic.f->data[1] + mb_x * 8 + mb_y * 8 * linesize[1];
1307 255 dest_cr = s->cur_pic.f->data[2] + mb_x * 8 + mb_y * 8 * linesize[2];
1308
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 255 if (!s->cur_pic.f->data[2])
1309 ✗ dest_cb = dest_cr = NULL;
1310
1311 255 put_dc(s, dest_y, dest_cb, dest_cr, mb_x, mb_y);
1312 }
1313 }
1314 #endif
1315
1316
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 505 if (s->avctx->error_concealment & FF_EC_DEBLOCK) {
1317 /* filter horizontal block boundaries */
1318 505 h_block_filter(s, s->cur_pic.f->data[0], s->mb_width * 2,
1319 505 s->mb_height * 2, linesize[0], 1);
1320
1321 /* filter vertical block boundaries */
1322 505 v_block_filter(s, s->cur_pic.f->data[0], s->mb_width * 2,
1323 505 s->mb_height * 2, linesize[0], 1);
1324
1325
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 505 if (s->cur_pic.f->data[2]) {
1326 505 h_block_filter(s, s->cur_pic.f->data[1], s->mb_width,
1327 505 s->mb_height, linesize[1], 0);
1328 505 h_block_filter(s, s->cur_pic.f->data[2], s->mb_width,
1329 505 s->mb_height, linesize[2], 0);
1330 505 v_block_filter(s, s->cur_pic.f->data[1], s->mb_width,
1331 505 s->mb_height, linesize[1], 0);
1332 505 v_block_filter(s, s->cur_pic.f->data[2], s->mb_width,
1333 505 s->mb_height, linesize[2], 0);
1334 }
1335 }
1336
1337 /* clean a few tables */
1338
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 349717 for (i = 0; i < s->mb_num; i++) {
1339 349212 const int mb_xy = s->mb_index2xy[i];
1340 349212 int error = s->error_status_table[mb_xy];
1341
1342
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 349212 if (s->mbskip_table && s->cur_pic.f->pict_type != AV_PICTURE_TYPE_B &&
1343
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 279216 (error & (ER_DC_ERROR | ER_MV_ERROR | ER_AC_ERROR))) {
1344 3182 s->mbskip_table[mb_xy] = 0;
1345 }
1346
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 349212 if (s->mbintra_table)
1347 348912 s->mbintra_table[mb_xy] = 1;
1348 }
1349
1350
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 1515 for (i = 0; i < 2; i++) {
1351 1010 av_freep(&s->ref_index[i]);
1352 1010 av_freep(&s->motion_val_base[i]);
1353 1010 s->cur_pic.ref_index[i] = NULL;
1354 1010 s->cur_pic.motion_val[i] = NULL;
1355 }
1356
1357 505 memset(&s->cur_pic, 0, sizeof(ERPicture));
1358 505 memset(&s->last_pic, 0, sizeof(ERPicture));
1359 505 memset(&s->next_pic, 0, sizeof(ERPicture));
1360 }
1361