FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/error_resilience.c
Date: 2022-01-23 21:51:25
Exec Total Coverage
Lines: 709 830 85.4%
Branches: 482 632 76.3%

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 "thread.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 */
43 210 static void set_mv_strides(ERContext *s, ptrdiff_t *mv_step, ptrdiff_t *stride)
44 {
45
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210 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 {
50 203 *mv_step = 2;
51 203 *stride = s->b8_stride;
52 }
53 210 }
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 30 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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1044 for (y = 1; y < height - 1; y++) {
102 1014 int prev_dc = data[0 + y * stride];
103
104
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43490 for (x = 1; x < width - 1; x++) {
105 int dc;
106 42476 dc = -prev_dc +
107 42476 data[x + y * stride] * 8 -
108 42476 data[x + 1 + y * stride];
109 42476 dc = (av_clip(dc, INT_MIN/10923, INT_MAX/10923 - 32768) * 10923 + 32768) >> 16;
110 42476 prev_dc = data[x + y * stride];
111 42476 data[x + y * stride] = dc;
112 }
113 }
114
115 /* vertical filter */
116
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1286 for (x = 1; x < width - 1; x++) {
117 1256 int prev_dc = data[x];
118
119
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43732 for (y = 1; y < height - 1; y++) {
120 int dc;
121
122 42476 dc = -prev_dc +
123 42476 data[x + y * stride] * 8 -
124 42476 data[x + (y + 1) * stride];
125 42476 dc = (av_clip(dc, INT_MIN/10923, INT_MAX/10923 - 32768) * 10923 + 32768) >> 16;
126 42476 prev_dc = data[x + y * stride];
127 42476 data[x + y * stride] = dc;
128 }
129 }
130 30 }
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 90 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 90 int16_t (*col )[4] = av_malloc_array(stride, h*sizeof( int16_t)*4);
142 90 uint32_t (*dist)[4] = av_malloc_array(stride, h*sizeof(uint32_t)*4);
143
144
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90 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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2238 for(b_y=0; b_y<h; b_y++){
150 2148 int color= 1024;
151 2148 int distance= -1;
152
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72852 for(b_x=0; b_x<w; b_x++){
153 70704 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
154 70704 int error_j= s->error_status_table[mb_index_j];
155 70704 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
156
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70704 if(intra_j==0 || !(error_j&ER_DC_ERROR)){
157 69174 color= dc[b_x + b_y*stride];
158 69174 distance= b_x;
159 }
160 70704 col [b_x + b_y*stride][1]= color;
161
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70704 dist[b_x + b_y*stride][1]= distance >= 0 ? b_x-distance : 9999;
162 }
163 2148 color= 1024;
164 2148 distance= -1;
165
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72852 for(b_x=w-1; b_x>=0; b_x--){
166 70704 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
167 70704 int error_j= s->error_status_table[mb_index_j];
168 70704 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
169
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70704 if(intra_j==0 || !(error_j&ER_DC_ERROR)){
170 69174 color= dc[b_x + b_y*stride];
171 69174 distance= b_x;
172 }
173 70704 col [b_x + b_y*stride][0]= color;
174
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70704 dist[b_x + b_y*stride][0]= distance >= 0 ? distance-b_x : 9999;
175 }
176 }
177
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2722 for(b_x=0; b_x<w; b_x++){
178 2632 int color= 1024;
179 2632 int distance= -1;
180
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73336 for(b_y=0; b_y<h; b_y++){
181 70704 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
182 70704 int error_j= s->error_status_table[mb_index_j];
183 70704 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
184
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70704 if(intra_j==0 || !(error_j&ER_DC_ERROR)){
185 69174 color= dc[b_x + b_y*stride];
186 69174 distance= b_y;
187 }
188 70704 col [b_x + b_y*stride][3]= color;
189
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70704 dist[b_x + b_y*stride][3]= distance >= 0 ? b_y-distance : 9999;
190 }
191 2632 color= 1024;
192 2632 distance= -1;
193
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73336 for(b_y=h-1; b_y>=0; b_y--){
194 70704 int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride;
195 70704 int error_j= s->error_status_table[mb_index_j];
196 70704 int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]);
197
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70704 if(intra_j==0 || !(error_j&ER_DC_ERROR)){
198 69174 color= dc[b_x + b_y*stride];
199 69174 distance= b_y;
200 }
201 70704 col [b_x + b_y*stride][2]= color;
202
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70704 dist[b_x + b_y*stride][2]= distance >= 0 ? distance-b_y : 9999;
203 }
204 }
205
206
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2238 for (b_y = 0; b_y < h; b_y++) {
207
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72852 for (b_x = 0; b_x < w; b_x++) {
208 int mb_index, error, j;
209 int64_t guess, weight_sum;
210 70704 mb_index = (b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride;
211 70704 error = s->error_status_table[mb_index];
212
213
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70704 if (IS_INTER(s->cur_pic.mb_type[mb_index]))
214 45774 continue; // inter
215
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24930 if (!(error & ER_DC_ERROR))
216 23400 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 90 fail:
231 90 av_freep(&col);
232 90 av_freep(&dist);
233 90 }
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 90 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 90 const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
246 90 set_mv_strides(s, &mvx_stride, &mvy_stride);
247 90 mvx_stride >>= is_luma;
248 90 mvy_stride *= mvx_stride;
249
250
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2238 for (b_y = 0; b_y < h; b_y++) {
251
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70704 for (b_x = 0; b_x < w - 1; b_x++) {
252 int y;
253 68556 int left_status = s->error_status_table[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride];
254 68556 int right_status = s->error_status_table[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride];
255 68556 int left_intra = IS_INTRA(s->cur_pic.mb_type[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]);
256 68556 int right_intra = IS_INTRA(s->cur_pic.mb_type[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride]);
257 68556 int left_damage = left_status & ER_MB_ERROR;
258 68556 int right_damage = right_status & ER_MB_ERROR;
259 68556 int offset = b_x * 8 + b_y * stride * 8;
260 68556 int16_t *left_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * b_x];
261 68556 int16_t *right_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * (b_x + 1)];
262
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68556 if (!(left_damage || right_damage))
263 49350 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 90 }
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 90 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 90 const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
315 90 set_mv_strides(s, &mvx_stride, &mvy_stride);
316 90 mvx_stride >>= is_luma;
317 90 mvy_stride *= mvx_stride;
318
319
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2148 for (b_y = 0; b_y < h - 1; b_y++) {
320
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70130 for (b_x = 0; b_x < w; b_x++) {
321 int x;
322 68072 int top_status = s->error_status_table[(b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride];
323 68072 int bottom_status = s->error_status_table[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride];
324 68072 int top_intra = IS_INTRA(s->cur_pic.mb_type[(b_x >> is_luma) + ( b_y >> is_luma) * s->mb_stride]);
325 68072 int bottom_intra = IS_INTRA(s->cur_pic.mb_type[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride]);
326 68072 int top_damage = top_status & ER_MB_ERROR;
327 68072 int bottom_damage = bottom_status & ER_MB_ERROR;
328 68072 int offset = b_x * 8 + b_y * stride * 8;
329
330 68072 int16_t *top_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * b_x];
331 68072 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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68072 if (!(top_damage || bottom_damage))
334 45970 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 90 }
375
376 #define MV_FROZEN 8
377 #define MV_CHANGED 4
378 #define MV_UNCHANGED 2
379 #define MV_LISTED 1
380 44746 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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44746 if (fixed[mb_xy])
383 41720 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 30 static void guess_mv(ERContext *s)
390 {
391 int (*blocklist)[2], (*next_blocklist)[2];
392 uint8_t *fixed;
393 30 const ptrdiff_t mb_stride = s->mb_stride;
394 30 const int mb_width = s->mb_width;
395 30 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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30 if (s->last_pic.f && s->last_pic.f->data[0])
402 26 mb_height = FFMIN(mb_height, (s->last_pic.f->height+15)>>4);
403
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30 if (s->next_pic.f && s->next_pic.f->data[0])
404 29 mb_height = FFMIN(mb_height, (s->next_pic.f->height+15)>>4);
405
406 30 blocklist = (int (*)[2])s->er_temp_buffer;
407 30 next_blocklist = blocklist + s->mb_stride * s->mb_height;
408 30 fixed = (uint8_t *)(next_blocklist + s->mb_stride * s->mb_height);
409
410 30 set_mv_strides(s, &mot_step, &mot_stride);
411
412 30 num_avail = 0;
413
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30 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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11814 for (i = 0; i < mb_width * mb_height; i++) {
416 11784 const int mb_xy = s->mb_index2xy[i];
417 11784 int f = 0;
418 11784 int error = s->error_status_table[mb_xy];
419
420
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11784 if (IS_INTRA(s->cur_pic.mb_type[mb_xy]))
421 4155 f = MV_FROZEN; // intra // FIXME check
422
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11784 if (!(error & ER_MV_ERROR))
423 8503 f = MV_FROZEN; // inter with undamaged MV
424
425 11784 fixed[mb_xy] = f;
426
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11784 if (f == MV_FROZEN)
427 8758 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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30 if ((!(s->avctx->error_concealment&FF_EC_GUESS_MVS)) ||
439
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30 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 30 blocklist_length = 0;
460
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567 for (mb_y = 0; mb_y < mb_height; mb_y++) {
461
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12321 for (mb_x = 0; mb_x < mb_width; mb_x++) {
462 11784 const int mb_xy = mb_x + mb_y * mb_stride;
463
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11784 if (fixed[mb_xy] == MV_FROZEN) {
464
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8758 if (mb_x) add_blocklist(blocklist, &blocklist_length, fixed, mb_x - 1, mb_y, mb_xy - 1);
465
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8758 if (mb_y) add_blocklist(blocklist, &blocklist_length, fixed, mb_x, mb_y - 1, mb_xy - mb_stride);
466
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8758 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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8758 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 30 for (depth = 0; ; depth++) {
473 int changed, pass, none_left;
474 int blocklist_index;
475
476 118 none_left = 1;
477 118 changed = 1;
478
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739 for (pass = 0; (changed || pass < 2) && pass < 10; pass++) {
479 621 changed = 0;
480
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21383 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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118 if (none_left)
691 30 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 30 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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30 if (!s->last_pic.f || !s->last_pic.f->data[0])
723 4 return 1; // no previous frame available -> use spatial prediction
724
725
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26 if (s->avctx->error_concealment & FF_EC_FAVOR_INTER)
726 return 0;
727
728 26 undamaged_count = 0;
729
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10322 for (i = 0; i < s->mb_num; i++) {
730 10296 const int mb_xy = s->mb_index2xy[i];
731 10296 const int error = s->error_status_table[mb_xy];
732
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10296 if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR)))
733 7270 undamaged_count++;
734 }
735
736
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26 if (undamaged_count < 5)
737 return 0; // almost all MBs damaged -> use temporal prediction
738
739 // prevent dsp.sad() check, that requires access to the image
740 if (CONFIG_XVMC &&
741 s->avctx->hwaccel && s->avctx->hwaccel->decode_mb &&
742 s->cur_pic.f->pict_type == AV_PICTURE_TYPE_I)
743 return 1;
744
745
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26 skip_amount = FFMAX(undamaged_count / 50, 1); // check only up to 50 MBs
746 26 is_intra_likely = 0;
747
748 26 j = 0;
749
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468 for (mb_y = 0; mb_y < s->mb_height - 1; mb_y++) {
750
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10166 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
751 int error;
752 9724 const int mb_xy = mb_x + mb_y * s->mb_stride;
753
754 9724 error = s->error_status_table[mb_xy];
755
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9724 if ((error & ER_DC_ERROR) && (error & ER_MV_ERROR))
756 2992 continue; // skip damaged
757
758 6732 j++;
759 // skip a few to speed things up
760
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6732 if ((j % skip_amount) != 0)
761 5384 continue;
762
763
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1348 if (s->cur_pic.f->pict_type == AV_PICTURE_TYPE_I) {
764 355 int *linesize = s->cur_pic.f->linesize;
765 355 uint8_t *mb_ptr = s->cur_pic.f->data[0] +
766 355 mb_x * 16 + mb_y * 16 * linesize[0];
767 355 uint8_t *last_mb_ptr = s->last_pic.f->data[0] +
768 355 mb_x * 16 + mb_y * 16 * linesize[0];
769
770
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355 if (s->avctx->codec_id == AV_CODEC_ID_H264) {
771 // FIXME
772 } else {
773 355 ff_thread_await_progress(s->last_pic.tf, mb_y, 0);
774 }
775 710 is_intra_likely += s->mecc.sad[0](NULL, last_mb_ptr, mb_ptr,
776 355 linesize[0], 16);
777 // FIXME need await_progress() here
778 355 is_intra_likely -= s->mecc.sad[0](NULL, last_mb_ptr,
779 355 last_mb_ptr + linesize[0] * 16,
780 355 linesize[0], 16);
781 } else {
782
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993 if (IS_INTRA(s->cur_pic.mb_type[mb_xy]))
783 58 is_intra_likely++;
784 else
785 935 is_intra_likely--;
786 }
787 }
788 }
789 // av_log(NULL, AV_LOG_ERROR, "is_intra_likely: %d type:%d\n", is_intra_likely, s->pict_type);
790 26 return is_intra_likely > 0;
791 }
792
793 34017 void ff_er_frame_start(ERContext *s)
794 {
795
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34017 if (!s->avctx->error_concealment)
796 return;
797
798
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34017 if (!s->mecc_inited) {
799 748 ff_me_cmp_init(&s->mecc, s->avctx);
800 748 s->mecc_inited = 1;
801 }
802
803 34017 memset(s->error_status_table, ER_MB_ERROR | VP_START | ER_MB_END,
804 34017 s->mb_stride * s->mb_height * sizeof(uint8_t));
805 34017 atomic_init(&s->error_count, 3 * s->mb_num);
806 34017 s->error_occurred = 0;
807 }
808
809 113220 static int er_supported(ERContext *s)
810 {
811
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113220 if(s->avctx->hwaccel && s->avctx->hwaccel->decode_slice ||
812
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113220 !s->cur_pic.f ||
813
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102683 s->cur_pic.field_picture
814 )
815 25085 return 0;
816 88135 return 1;
817 }
818
819 /**
820 * Add a slice.
821 * @param endx x component of the last macroblock, can be -1
822 * for the last of the previous line
823 * @param status the status at the end (ER_MV_END, ER_AC_ERROR, ...), it is
824 * assumed that no earlier end or error of the same type occurred
825 */
826 160280 void ff_er_add_slice(ERContext *s, int startx, int starty,
827 int endx, int endy, int status)
828 {
829 160280 const int start_i = av_clip(startx + starty * s->mb_width, 0, s->mb_num - 1);
830 160280 const int end_i = av_clip(endx + endy * s->mb_width, 0, s->mb_num);
831 160280 const int start_xy = s->mb_index2xy[start_i];
832 160280 const int end_xy = s->mb_index2xy[end_i];
833 160280 int mask = -1;
834
835
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160280 if (s->avctx->hwaccel && s->avctx->hwaccel->decode_slice)
836 return;
837
838
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160280 if (start_i > end_i || start_xy > end_xy) {
839 av_log(s->avctx, AV_LOG_ERROR,
840 "internal error, slice end before start\n");
841 return;
842 }
843
844
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160280 if (!s->avctx->error_concealment)
845 return;
846
847 160280 mask &= ~VP_START;
848
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160280 if (status & (ER_AC_ERROR | ER_AC_END)) {
849 157323 mask &= ~(ER_AC_ERROR | ER_AC_END);
850 157323 atomic_fetch_add(&s->error_count, start_i - end_i - 1);
851 }
852
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160280 if (status & (ER_DC_ERROR | ER_DC_END)) {
853 157323 mask &= ~(ER_DC_ERROR | ER_DC_END);
854 157323 atomic_fetch_add(&s->error_count, start_i - end_i - 1);
855 }
856
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160280 if (status & (ER_MV_ERROR | ER_MV_END)) {
857 157323 mask &= ~(ER_MV_ERROR | ER_MV_END);
858 157323 atomic_fetch_add(&s->error_count, start_i - end_i - 1);
859 }
860
861
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160280 if (status & ER_MB_ERROR) {
862 6 s->error_occurred = 1;
863 6 atomic_store(&s->error_count, INT_MAX);
864 }
865
866
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160280 if (mask == ~0x7F) {
867 155595 memset(&s->error_status_table[start_xy], 0,
868 155595 (end_xy - start_xy) * sizeof(uint8_t));
869 } else {
870 int i;
871
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414133 for (i = start_xy; i < end_xy; i++)
872 409448 s->error_status_table[i] &= mask;
873 }
874
875
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160280 if (end_i == s->mb_num)
876 3874 atomic_store(&s->error_count, INT_MAX);
877 else {
878 156406 s->error_status_table[end_xy] &= mask;
879 156406 s->error_status_table[end_xy] |= status;
880 }
881
882 160280 s->error_status_table[start_xy] |= VP_START;
883
884
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272928 if (start_xy > 0 && !(s->avctx->active_thread_type & FF_THREAD_SLICE) &&
885
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200753 er_supported(s) && s->avctx->skip_top * s->mb_width < start_i) {
886 88105 int prev_status = s->error_status_table[s->mb_index2xy[start_i - 1]];
887
888 88105 prev_status &= ~ VP_START;
889
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88105 if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END)) {
890 77 s->error_occurred = 1;
891 77 atomic_store(&s->error_count, INT_MAX);
892 }
893 }
894 }
895
896 29598 void ff_er_frame_end(ERContext *s)
897 {
898 29598 int *linesize = NULL;
899 int i, mb_x, mb_y, error, error_type, dc_error, mv_error, ac_error;
900 int distance;
901 29598 int threshold_part[4] = { 100, 100, 100 };
902 29598 int threshold = 50;
903 int is_intra_likely;
904 29598 int size = s->b8_stride * 2 * s->mb_height;
905
906 /* We do not support ER of field pictures yet,
907 * though it should not crash if enabled. */
908
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29598 if (!s->avctx->error_concealment || !atomic_load(&s->error_count) ||
909
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1144 s->avctx->lowres ||
910 572 !er_supported(s) ||
911 30 atomic_load(&s->error_count) == 3 * s->mb_width *
912
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30 (s->avctx->skip_top + s->avctx->skip_bottom)) {
913 29568 return;
914 }
915 30 linesize = s->cur_pic.f->linesize;
916
917
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30 if ( s->avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO
918 && (FFALIGN(s->avctx->height, 16)&16)
919 && atomic_load(&s->error_count) == 3 * s->mb_width * (s->avctx->skip_top + s->avctx->skip_bottom + 1)) {
920 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
921 int status = s->error_status_table[mb_x + (s->mb_height - 1) * s->mb_stride];
922 if (status != 0x7F)
923 break;
924 }
925
926 if (mb_x == s->mb_width) {
927 av_log(s->avctx, AV_LOG_DEBUG, "ignoring last missing slice\n");
928 return;
929 }
930 }
931
932
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30 if (s->last_pic.f) {
933
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26 if (s->last_pic.f->width != s->cur_pic.f->width ||
934
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26 s->last_pic.f->height != s->cur_pic.f->height ||
935
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26 s->last_pic.f->format != s->cur_pic.f->format) {
936 av_log(s->avctx, AV_LOG_WARNING, "Cannot use previous picture in error concealment\n");
937 memset(&s->last_pic, 0, sizeof(s->last_pic));
938 }
939 }
940
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30 if (s->next_pic.f) {
941
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29 if (s->next_pic.f->width != s->cur_pic.f->width ||
942
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29 s->next_pic.f->height != s->cur_pic.f->height ||
943
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29 s->next_pic.f->format != s->cur_pic.f->format) {
944 av_log(s->avctx, AV_LOG_WARNING, "Cannot use next picture in error concealment\n");
945 memset(&s->next_pic, 0, sizeof(s->next_pic));
946 }
947 }
948
949
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30 if (!s->cur_pic.motion_val[0] || !s->cur_pic.ref_index[0]) {
950 av_log(s->avctx, AV_LOG_ERROR, "Warning MVs not available\n");
951
952 for (i = 0; i < 2; i++) {
953 s->ref_index_buf[i] = av_buffer_allocz(s->mb_stride * s->mb_height * 4 * sizeof(uint8_t));
954 s->motion_val_buf[i] = av_buffer_allocz((size + 4) * 2 * sizeof(uint16_t));
955 if (!s->ref_index_buf[i] || !s->motion_val_buf[i])
956 break;
957 s->cur_pic.ref_index[i] = s->ref_index_buf[i]->data;
958 s->cur_pic.motion_val[i] = (int16_t (*)[2])s->motion_val_buf[i]->data + 4;
959 }
960 if (i < 2) {
961 for (i = 0; i < 2; i++) {
962 av_buffer_unref(&s->ref_index_buf[i]);
963 av_buffer_unref(&s->motion_val_buf[i]);
964 s->cur_pic.ref_index[i] = NULL;
965 s->cur_pic.motion_val[i] = NULL;
966 }
967 return;
968 }
969 }
970
971
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30 if (s->avctx->debug & FF_DEBUG_ER) {
972 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
973 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
974 int status = s->error_status_table[mb_x + mb_y * s->mb_stride];
975
976 av_log(s->avctx, AV_LOG_DEBUG, "%2X ", status);
977 }
978 av_log(s->avctx, AV_LOG_DEBUG, "\n");
979 }
980 }
981
982 #if 1
983 /* handle overlapping slices */
984
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120 for (error_type = 1; error_type <= 3; error_type++) {
985 90 int end_ok = 0;
986
987
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35442 for (i = s->mb_num - 1; i >= 0; i--) {
988 35352 const int mb_xy = s->mb_index2xy[i];
989 35352 int error = s->error_status_table[mb_xy];
990
991
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35352 if (error & (1 << error_type))
992 9696 end_ok = 1;
993
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35352 if (error & (8 << error_type))
994 10083 end_ok = 1;
995
996
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35352 if (!end_ok)
997 s->error_status_table[mb_xy] |= 1 << error_type;
998
999
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35352 if (error & VP_START)
1000 10086 end_ok = 0;
1001 }
1002 }
1003 #endif
1004 #if 1
1005 /* handle slices with partitions of different length */
1006
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30 if (s->partitioned_frame) {
1007 29 int end_ok = 0;
1008
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11513 for (i = s->mb_num - 1; i >= 0; i--) {
1010 11484 const int mb_xy = s->mb_index2xy[i];
1011 11484 int error = s->error_status_table[mb_xy];
1012
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11484 if (error & ER_AC_END)
1014 3312 end_ok = 0;
1015
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11484 if ((error & ER_MV_END) ||
1016
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8172 (error & ER_DC_END) ||
1017
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8172 (error & ER_AC_ERROR))
1018 3312 end_ok = 1;
1019
1020
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11484 if (!end_ok)
1021 s->error_status_table[mb_xy]|= ER_AC_ERROR;
1022
1023
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11484 if (error & VP_START)
1024 3312 end_ok = 0;
1025 }
1026 }
1027 #endif
1028 /* handle missing slices */
1029
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30 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
1030 int end_ok = 1;
1031
1032 // FIXME + 100 hack
1033 for (i = s->mb_num - 2; i >= s->mb_width + 100; i--) {
1034 const int mb_xy = s->mb_index2xy[i];
1035 int error1 = s->error_status_table[mb_xy];
1036 int error2 = s->error_status_table[s->mb_index2xy[i + 1]];
1037
1038 if (error1 & VP_START)
1039 end_ok = 1;
1040
1041 if (error2 == (VP_START | ER_MB_ERROR | ER_MB_END) &&
1042 error1 != (VP_START | ER_MB_ERROR | ER_MB_END) &&
1043 ((error1 & ER_AC_END) || (error1 & ER_DC_END) ||
1044 (error1 & ER_MV_END))) {
1045 // end & uninit
1046 end_ok = 0;
1047 }
1048
1049 if (!end_ok)
1050 s->error_status_table[mb_xy] |= ER_MB_ERROR;
1051 }
1052 }
1053
1054 #if 1
1055 /* backward mark errors */
1056 30 distance = 9999999;
1057
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120 for (error_type = 1; error_type <= 3; error_type++) {
1058
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35442 for (i = s->mb_num - 1; i >= 0; i--) {
1059 35352 const int mb_xy = s->mb_index2xy[i];
1060 35352 int error = s->error_status_table[mb_xy];
1061
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35352 if (!s->mbskip_table || !s->mbskip_table[mb_xy]) // FIXME partition specific
1063 35274 distance++;
1064
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35352 if (error & (1 << error_type))
1065 9696 distance = 0;
1066
1067
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35352 if (s->partitioned_frame) {
1068
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34452 if (distance < threshold_part[error_type - 1])
1069 9546 s->error_status_table[mb_xy] |= 1 << error_type;
1070 } else {
1071
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900 if (distance < threshold)
1072 297 s->error_status_table[mb_xy] |= 1 << error_type;
1073 }
1074
1075
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35352 if (error & VP_START)
1076 10086 distance = 9999999;
1077 }
1078 }
1079 #endif
1080
1081 /* forward mark errors */
1082 30 error = 0;
1083
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11814 for (i = 0; i < s->mb_num; i++) {
1084 11784 const int mb_xy = s->mb_index2xy[i];
1085 11784 int old_error = s->error_status_table[mb_xy];
1086
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11784 if (old_error & VP_START) {
1088 3362 error = old_error & ER_MB_ERROR;
1089 } else {
1090 8422 error |= old_error & ER_MB_ERROR;
1091 8422 s->error_status_table[mb_xy] |= error;
1092 }
1093 }
1094 #if 1
1095 /* handle not partitioned case */
1096
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30 if (!s->partitioned_frame) {
1097
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301 for (i = 0; i < s->mb_num; i++) {
1098 300 const int mb_xy = s->mb_index2xy[i];
1099 300 int error = s->error_status_table[mb_xy];
1100
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300 if (error & ER_MB_ERROR)
1101 99 error |= ER_MB_ERROR;
1102 300 s->error_status_table[mb_xy] = error;
1103 }
1104 }
1105 #endif
1106
1107 30 dc_error = ac_error = mv_error = 0;
1108
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11814 for (i = 0; i < s->mb_num; i++) {
1109 11784 const int mb_xy = s->mb_index2xy[i];
1110 11784 int error = s->error_status_table[mb_xy];
1111
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11784 if (error & ER_DC_ERROR)
1112 3281 dc_error++;
1113
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11784 if (error & ER_AC_ERROR)
1114 3281 ac_error++;
1115
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11784 if (error & ER_MV_ERROR)
1116 3281 mv_error++;
1117 }
1118 30 av_log(s->avctx, AV_LOG_INFO, "concealing %d DC, %d AC, %d MV errors in %c frame\n",
1119 30 dc_error, ac_error, mv_error, av_get_picture_type_char(s->cur_pic.f->pict_type));
1120
1121 30 s->cur_pic.f->decode_error_flags |= FF_DECODE_ERROR_CONCEALMENT_ACTIVE;
1122
1123 30 is_intra_likely = is_intra_more_likely(s);
1124
1125 /* set unknown mb-type to most likely */
1126
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11814 for (i = 0; i < s->mb_num; i++) {
1127 11784 const int mb_xy = s->mb_index2xy[i];
1128 11784 int error = s->error_status_table[mb_xy];
1129
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11784 if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR)))
1130 8503 continue;
1131
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3281 if (is_intra_likely)
1133 255 s->cur_pic.mb_type[mb_xy] = MB_TYPE_INTRA4x4;
1134 else
1135 3026 s->cur_pic.mb_type[mb_xy] = MB_TYPE_16x16 | MB_TYPE_L0;
1136 }
1137
1138 // change inter to intra blocks if no reference frames are available
1139
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30 if (!(s->last_pic.f && s->last_pic.f->data[0]) &&
1140
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4 !(s->next_pic.f && s->next_pic.f->data[0]))
1141
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301 for (i = 0; i < s->mb_num; i++) {
1142 300 const int mb_xy = s->mb_index2xy[i];
1143
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300 if (!IS_INTRA(s->cur_pic.mb_type[mb_xy]))
1144 s->cur_pic.mb_type[mb_xy] = MB_TYPE_INTRA4x4;
1145 }
1146
1147 /* handle inter blocks with damaged AC */
1148
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567 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
1149
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12321 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
1150 11784 const int mb_xy = mb_x + mb_y * s->mb_stride;
1151 11784 const int mb_type = s->cur_pic.mb_type[mb_xy];
1152
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11784 const int dir = !(s->last_pic.f && s->last_pic.f->data[0]);
1153
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11784 const int mv_dir = dir ? MV_DIR_BACKWARD : MV_DIR_FORWARD;
1154 int mv_type;
1155
1156 11784 int error = s->error_status_table[mb_xy];
1157
1158
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11784 if (IS_INTRA(mb_type))
1159 4155 continue; // intra
1160
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7629 if (error & ER_MV_ERROR)
1161 3026 continue; // inter with damaged MV
1162
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4603 if (!(error & ER_AC_ERROR))
1163 4603 continue; // undamaged inter
1164
1165 if (IS_8X8(mb_type)) {
1166 int mb_index = mb_x * 2 + mb_y * 2 * s->b8_stride;
1167 int j;
1168 mv_type = MV_TYPE_8X8;
1169 for (j = 0; j < 4; j++) {
1170 s->mv[0][j][0] = s->cur_pic.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][0];
1171 s->mv[0][j][1] = s->cur_pic.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][1];
1172 }
1173 } else {
1174 mv_type = MV_TYPE_16X16;
1175 s->mv[0][0][0] = s->cur_pic.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][0];
1176 s->mv[0][0][1] = s->cur_pic.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][1];
1177 }
1178
1179 s->decode_mb(s->opaque, 0 /* FIXME H.264 partitioned slices need this set */,
1180 mv_dir, mv_type, &s->mv, mb_x, mb_y, 0, 0);
1181 }
1182 }
1183
1184 /* guess MVs */
1185
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30 if (s->cur_pic.f->pict_type == AV_PICTURE_TYPE_B) {
1186 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
1187 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
1188 int xy = mb_x * 2 + mb_y * 2 * s->b8_stride;
1189 const int mb_xy = mb_x + mb_y * s->mb_stride;
1190 const int mb_type = s->cur_pic.mb_type[mb_xy];
1191 int mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
1192
1193 int error = s->error_status_table[mb_xy];
1194
1195 if (IS_INTRA(mb_type))
1196 continue;
1197 if (!(error & ER_MV_ERROR))
1198 continue; // inter with undamaged MV
1199 if (!(error & ER_AC_ERROR))
1200 continue; // undamaged inter
1201
1202 if (!(s->last_pic.f && s->last_pic.f->data[0]))
1203 mv_dir &= ~MV_DIR_FORWARD;
1204 if (!(s->next_pic.f && s->next_pic.f->data[0]))
1205 mv_dir &= ~MV_DIR_BACKWARD;
1206
1207 if (s->pp_time) {
1208 int time_pp = s->pp_time;
1209 int time_pb = s->pb_time;
1210
1211 av_assert0(s->avctx->codec_id != AV_CODEC_ID_H264);
1212 ff_thread_await_progress(s->next_pic.tf, mb_y, 0);
1213
1214 s->mv[0][0][0] = s->next_pic.motion_val[0][xy][0] * time_pb / time_pp;
1215 s->mv[0][0][1] = s->next_pic.motion_val[0][xy][1] * time_pb / time_pp;
1216 s->mv[1][0][0] = s->next_pic.motion_val[0][xy][0] * (time_pb - time_pp) / time_pp;
1217 s->mv[1][0][1] = s->next_pic.motion_val[0][xy][1] * (time_pb - time_pp) / time_pp;
1218 } else {
1219 s->mv[0][0][0] = 0;
1220 s->mv[0][0][1] = 0;
1221 s->mv[1][0][0] = 0;
1222 s->mv[1][0][1] = 0;
1223 }
1224
1225 s->decode_mb(s->opaque, 0, mv_dir, MV_TYPE_16X16, &s->mv,
1226 mb_x, mb_y, 0, 0);
1227 }
1228 }
1229 } else
1230 30 guess_mv(s);
1231
1232 /* the filters below manipulate raw image, skip them */
1233 if (CONFIG_XVMC && s->avctx->hwaccel && s->avctx->hwaccel->decode_mb)
1234 goto ec_clean;
1235 /* fill DC for inter blocks */
1236
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567 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
1237
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12321 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
1238 int dc, dcu, dcv, y, n;
1239 int16_t *dc_ptr;
1240 uint8_t *dest_y, *dest_cb, *dest_cr;
1241 11784 const int mb_xy = mb_x + mb_y * s->mb_stride;
1242 11784 const int mb_type = s->cur_pic.mb_type[mb_xy];
1243
1244 // error = s->error_status_table[mb_xy];
1245
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11784 if (IS_INTRA(mb_type) && s->partitioned_frame)
1247 3855 continue;
1248 // if (error & ER_MV_ERROR)
1249 // continue; // inter data damaged FIXME is this good?
1250
1251 7929 dest_y = s->cur_pic.f->data[0] + mb_x * 16 + mb_y * 16 * linesize[0];
1252 7929 dest_cb = s->cur_pic.f->data[1] + mb_x * 8 + mb_y * 8 * linesize[1];
1253 7929 dest_cr = s->cur_pic.f->data[2] + mb_x * 8 + mb_y * 8 * linesize[2];
1254
1255 7929 dc_ptr = &s->dc_val[0][mb_x * 2 + mb_y * 2 * s->b8_stride];
1256
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39645 for (n = 0; n < 4; n++) {
1257 31716 dc = 0;
1258
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285444 for (y = 0; y < 8; y++) {
1259 int x;
1260
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2283552 for (x = 0; x < 8; x++)
1261 2029824 dc += dest_y[x + (n & 1) * 8 +
1262 2029824 (y + (n >> 1) * 8) * linesize[0]];
1263 }
1264 31716 dc_ptr[(n & 1) + (n >> 1) * s->b8_stride] = (dc + 4) >> 3;
1265 }
1266
1267
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7929 if (!s->cur_pic.f->data[2])
1268 continue;
1269
1270 7929 dcu = dcv = 0;
1271
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71361 for (y = 0; y < 8; y++) {
1272 int x;
1273
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570888 for (x = 0; x < 8; x++) {
1274 507456 dcu += dest_cb[x + y * linesize[1]];
1275 507456 dcv += dest_cr[x + y * linesize[2]];
1276 }
1277 }
1278 7929 s->dc_val[1][mb_x + mb_y * s->mb_stride] = (dcu + 4) >> 3;
1279 7929 s->dc_val[2][mb_x + mb_y * s->mb_stride] = (dcv + 4) >> 3;
1280 }
1281 }
1282 #if 1
1283 /* guess DC for damaged blocks */
1284 30 guess_dc(s, s->dc_val[0], s->mb_width*2, s->mb_height*2, s->b8_stride, 1);
1285 30 guess_dc(s, s->dc_val[1], s->mb_width , s->mb_height , s->mb_stride, 0);
1286 30 guess_dc(s, s->dc_val[2], s->mb_width , s->mb_height , s->mb_stride, 0);
1287 #endif
1288
1289 /* filter luma DC */
1290 30 filter181(s->dc_val[0], s->mb_width * 2, s->mb_height * 2, s->b8_stride);
1291
1292 #if 1
1293 /* render DC only intra */
1294
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567 for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
1295
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12321 for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
1296 uint8_t *dest_y, *dest_cb, *dest_cr;
1297 11784 const int mb_xy = mb_x + mb_y * s->mb_stride;
1298 11784 const int mb_type = s->cur_pic.mb_type[mb_xy];
1299
1300 11784 int error = s->error_status_table[mb_xy];
1301
1302
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11784 if (IS_INTER(mb_type))
1303 7629 continue;
1304
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4155 if (!(error & ER_AC_ERROR))
1305 3900 continue; // undamaged
1306
1307 255 dest_y = s->cur_pic.f->data[0] + mb_x * 16 + mb_y * 16 * linesize[0];
1308 255 dest_cb = s->cur_pic.f->data[1] + mb_x * 8 + mb_y * 8 * linesize[1];
1309 255 dest_cr = s->cur_pic.f->data[2] + mb_x * 8 + mb_y * 8 * linesize[2];
1310
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255 if (!s->cur_pic.f->data[2])
1311 dest_cb = dest_cr = NULL;
1312
1313 255 put_dc(s, dest_y, dest_cb, dest_cr, mb_x, mb_y);
1314 }
1315 }
1316 #endif
1317
1318
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30 if (s->avctx->error_concealment & FF_EC_DEBLOCK) {
1319 /* filter horizontal block boundaries */
1320 30 h_block_filter(s, s->cur_pic.f->data[0], s->mb_width * 2,
1321 30 s->mb_height * 2, linesize[0], 1);
1322
1323 /* filter vertical block boundaries */
1324 30 v_block_filter(s, s->cur_pic.f->data[0], s->mb_width * 2,
1325 30 s->mb_height * 2, linesize[0], 1);
1326
1327
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30 if (s->cur_pic.f->data[2]) {
1328 30 h_block_filter(s, s->cur_pic.f->data[1], s->mb_width,
1329 30 s->mb_height, linesize[1], 0);
1330 30 h_block_filter(s, s->cur_pic.f->data[2], s->mb_width,
1331 30 s->mb_height, linesize[2], 0);
1332 30 v_block_filter(s, s->cur_pic.f->data[1], s->mb_width,
1333 30 s->mb_height, linesize[1], 0);
1334 30 v_block_filter(s, s->cur_pic.f->data[2], s->mb_width,
1335 30 s->mb_height, linesize[2], 0);
1336 }
1337 }
1338
1339 ec_clean:
1340 /* clean a few tables */
1341
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11814 for (i = 0; i < s->mb_num; i++) {
1342 11784 const int mb_xy = s->mb_index2xy[i];
1343 11784 int error = s->error_status_table[mb_xy];
1344
1345
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11784 if (s->mbskip_table && s->cur_pic.f->pict_type != AV_PICTURE_TYPE_B &&
1346
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11484 (error & (ER_DC_ERROR | ER_MV_ERROR | ER_AC_ERROR))) {
1347 3182 s->mbskip_table[mb_xy] = 0;
1348 }
1349
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11784 if (s->mbintra_table)
1350 11484 s->mbintra_table[mb_xy] = 1;
1351 }
1352
1353
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90 for (i = 0; i < 2; i++) {
1354 60 av_buffer_unref(&s->ref_index_buf[i]);
1355 60 av_buffer_unref(&s->motion_val_buf[i]);
1356 60 s->cur_pic.ref_index[i] = NULL;
1357 60 s->cur_pic.motion_val[i] = NULL;
1358 }
1359
1360 30 memset(&s->cur_pic, 0, sizeof(ERPicture));
1361 30 memset(&s->last_pic, 0, sizeof(ERPicture));
1362 30 memset(&s->next_pic, 0, sizeof(ERPicture));
1363 }
1364