Commit | Line | Data |
---|---|---|
2ba45a60 DM |
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 "mpegutils.h" | |
34 | #include "mpegvideo.h" | |
35 | #include "rectangle.h" | |
36 | #include "thread.h" | |
37 | #include "version.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 | static void set_mv_strides(ERContext *s, int *mv_step, int *stride) | |
44 | { | |
45 | if (s->avctx->codec_id == AV_CODEC_ID_H264) { | |
46 | av_assert0(s->quarter_sample); | |
47 | *mv_step = 4; | |
48 | *stride = s->mb_width * 4; | |
49 | } else { | |
50 | *mv_step = 2; | |
51 | *stride = s->b8_stride; | |
52 | } | |
53 | } | |
54 | ||
55 | /** | |
56 | * Replace the current MB with a flat dc-only version. | |
57 | */ | |
58 | 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 | int *linesize = s->cur_pic.f->linesize; | |
62 | int dc, dcu, dcv, y, i; | |
63 | for (i = 0; i < 4; i++) { | |
64 | dc = s->dc_val[0][mb_x * 2 + (i & 1) + (mb_y * 2 + (i >> 1)) * s->b8_stride]; | |
65 | if (dc < 0) | |
66 | dc = 0; | |
67 | else if (dc > 2040) | |
68 | dc = 2040; | |
69 | for (y = 0; y < 8; y++) { | |
70 | int x; | |
71 | for (x = 0; x < 8; x++) | |
72 | dest_y[x + (i & 1) * 8 + (y + (i >> 1) * 8) * linesize[0]] = dc / 8; | |
73 | } | |
74 | } | |
75 | dcu = s->dc_val[1][mb_x + mb_y * s->mb_stride]; | |
76 | dcv = s->dc_val[2][mb_x + mb_y * s->mb_stride]; | |
77 | if (dcu < 0) | |
78 | dcu = 0; | |
79 | else if (dcu > 2040) | |
80 | dcu = 2040; | |
81 | if (dcv < 0) | |
82 | dcv = 0; | |
83 | else if (dcv > 2040) | |
84 | dcv = 2040; | |
85 | for (y = 0; y < 8; y++) { | |
86 | int x; | |
87 | for (x = 0; x < 8; x++) { | |
88 | dest_cb[x + y * linesize[1]] = dcu / 8; | |
89 | dest_cr[x + y * linesize[2]] = dcv / 8; | |
90 | } | |
91 | } | |
92 | } | |
93 | ||
94 | static void filter181(int16_t *data, int width, int height, int stride) | |
95 | { | |
96 | int x, y; | |
97 | ||
98 | /* horizontal filter */ | |
99 | for (y = 1; y < height - 1; y++) { | |
100 | int prev_dc = data[0 + y * stride]; | |
101 | ||
102 | for (x = 1; x < width - 1; x++) { | |
103 | int dc; | |
104 | dc = -prev_dc + | |
105 | data[x + y * stride] * 8 - | |
106 | data[x + 1 + y * stride]; | |
107 | dc = (dc * 10923 + 32768) >> 16; | |
108 | prev_dc = data[x + y * stride]; | |
109 | data[x + y * stride] = dc; | |
110 | } | |
111 | } | |
112 | ||
113 | /* vertical filter */ | |
114 | for (x = 1; x < width - 1; x++) { | |
115 | int prev_dc = data[x]; | |
116 | ||
117 | for (y = 1; y < height - 1; y++) { | |
118 | int dc; | |
119 | ||
120 | dc = -prev_dc + | |
121 | data[x + y * stride] * 8 - | |
122 | data[x + (y + 1) * stride]; | |
123 | dc = (dc * 10923 + 32768) >> 16; | |
124 | prev_dc = data[x + y * stride]; | |
125 | data[x + y * stride] = dc; | |
126 | } | |
127 | } | |
128 | } | |
129 | ||
130 | /** | |
131 | * guess the dc of blocks which do not have an undamaged dc | |
132 | * @param w width in 8 pixel blocks | |
133 | * @param h height in 8 pixel blocks | |
134 | */ | |
135 | static void guess_dc(ERContext *s, int16_t *dc, int w, | |
136 | int h, int stride, int is_luma) | |
137 | { | |
138 | int b_x, b_y; | |
139 | int16_t (*col )[4] = av_malloc_array(stride, h*sizeof( int16_t)*4); | |
140 | uint32_t (*dist)[4] = av_malloc_array(stride, h*sizeof(uint32_t)*4); | |
141 | ||
142 | if(!col || !dist) { | |
143 | av_log(s->avctx, AV_LOG_ERROR, "guess_dc() is out of memory\n"); | |
144 | goto fail; | |
145 | } | |
146 | ||
147 | for(b_y=0; b_y<h; b_y++){ | |
148 | int color= 1024; | |
149 | int distance= -1; | |
150 | for(b_x=0; b_x<w; b_x++){ | |
151 | int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride; | |
152 | int error_j= s->error_status_table[mb_index_j]; | |
153 | int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]); | |
154 | if(intra_j==0 || !(error_j&ER_DC_ERROR)){ | |
155 | color= dc[b_x + b_y*stride]; | |
156 | distance= b_x; | |
157 | } | |
158 | col [b_x + b_y*stride][1]= color; | |
159 | dist[b_x + b_y*stride][1]= distance >= 0 ? b_x-distance : 9999; | |
160 | } | |
161 | color= 1024; | |
162 | distance= -1; | |
163 | for(b_x=w-1; b_x>=0; b_x--){ | |
164 | int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride; | |
165 | int error_j= s->error_status_table[mb_index_j]; | |
166 | int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]); | |
167 | if(intra_j==0 || !(error_j&ER_DC_ERROR)){ | |
168 | color= dc[b_x + b_y*stride]; | |
169 | distance= b_x; | |
170 | } | |
171 | col [b_x + b_y*stride][0]= color; | |
172 | dist[b_x + b_y*stride][0]= distance >= 0 ? distance-b_x : 9999; | |
173 | } | |
174 | } | |
175 | for(b_x=0; b_x<w; b_x++){ | |
176 | int color= 1024; | |
177 | int distance= -1; | |
178 | for(b_y=0; b_y<h; b_y++){ | |
179 | int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride; | |
180 | int error_j= s->error_status_table[mb_index_j]; | |
181 | int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]); | |
182 | if(intra_j==0 || !(error_j&ER_DC_ERROR)){ | |
183 | color= dc[b_x + b_y*stride]; | |
184 | distance= b_y; | |
185 | } | |
186 | col [b_x + b_y*stride][3]= color; | |
187 | dist[b_x + b_y*stride][3]= distance >= 0 ? b_y-distance : 9999; | |
188 | } | |
189 | color= 1024; | |
190 | distance= -1; | |
191 | for(b_y=h-1; b_y>=0; b_y--){ | |
192 | int mb_index_j= (b_x>>is_luma) + (b_y>>is_luma)*s->mb_stride; | |
193 | int error_j= s->error_status_table[mb_index_j]; | |
194 | int intra_j = IS_INTRA(s->cur_pic.mb_type[mb_index_j]); | |
195 | if(intra_j==0 || !(error_j&ER_DC_ERROR)){ | |
196 | color= dc[b_x + b_y*stride]; | |
197 | distance= b_y; | |
198 | } | |
199 | col [b_x + b_y*stride][2]= color; | |
200 | dist[b_x + b_y*stride][2]= distance >= 0 ? distance-b_y : 9999; | |
201 | } | |
202 | } | |
203 | ||
204 | for (b_y = 0; b_y < h; b_y++) { | |
205 | for (b_x = 0; b_x < w; b_x++) { | |
206 | int mb_index, error, j; | |
207 | int64_t guess, weight_sum; | |
208 | mb_index = (b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride; | |
209 | error = s->error_status_table[mb_index]; | |
210 | ||
211 | if (IS_INTER(s->cur_pic.mb_type[mb_index])) | |
212 | continue; // inter | |
213 | if (!(error & ER_DC_ERROR)) | |
214 | continue; // dc-ok | |
215 | ||
216 | weight_sum = 0; | |
217 | guess = 0; | |
218 | for (j = 0; j < 4; j++) { | |
219 | int64_t weight = 256 * 256 * 256 * 16 / FFMAX(dist[b_x + b_y*stride][j], 1); | |
220 | guess += weight*(int64_t)col[b_x + b_y*stride][j]; | |
221 | weight_sum += weight; | |
222 | } | |
223 | guess = (guess + weight_sum / 2) / weight_sum; | |
224 | dc[b_x + b_y * stride] = guess; | |
225 | } | |
226 | } | |
227 | ||
228 | fail: | |
229 | av_freep(&col); | |
230 | av_freep(&dist); | |
231 | } | |
232 | ||
233 | /** | |
234 | * simple horizontal deblocking filter used for error resilience | |
235 | * @param w width in 8 pixel blocks | |
236 | * @param h height in 8 pixel blocks | |
237 | */ | |
238 | static void h_block_filter(ERContext *s, uint8_t *dst, int w, | |
239 | int h, int stride, int is_luma) | |
240 | { | |
241 | int b_x, b_y, mvx_stride, mvy_stride; | |
242 | const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP; | |
243 | set_mv_strides(s, &mvx_stride, &mvy_stride); | |
244 | mvx_stride >>= is_luma; | |
245 | mvy_stride *= mvx_stride; | |
246 | ||
247 | for (b_y = 0; b_y < h; b_y++) { | |
248 | for (b_x = 0; b_x < w - 1; b_x++) { | |
249 | int y; | |
250 | int left_status = s->error_status_table[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]; | |
251 | int right_status = s->error_status_table[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride]; | |
252 | int left_intra = IS_INTRA(s->cur_pic.mb_type[( b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]); | |
253 | int right_intra = IS_INTRA(s->cur_pic.mb_type[((b_x + 1) >> is_luma) + (b_y >> is_luma) * s->mb_stride]); | |
254 | int left_damage = left_status & ER_MB_ERROR; | |
255 | int right_damage = right_status & ER_MB_ERROR; | |
256 | int offset = b_x * 8 + b_y * stride * 8; | |
257 | int16_t *left_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * b_x]; | |
258 | int16_t *right_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * (b_x + 1)]; | |
259 | if (!(left_damage || right_damage)) | |
260 | continue; // both undamaged | |
261 | if ((!left_intra) && (!right_intra) && | |
262 | FFABS(left_mv[0] - right_mv[0]) + | |
263 | FFABS(left_mv[1] + right_mv[1]) < 2) | |
264 | continue; | |
265 | ||
266 | for (y = 0; y < 8; y++) { | |
267 | int a, b, c, d; | |
268 | ||
269 | a = dst[offset + 7 + y * stride] - dst[offset + 6 + y * stride]; | |
270 | b = dst[offset + 8 + y * stride] - dst[offset + 7 + y * stride]; | |
271 | c = dst[offset + 9 + y * stride] - dst[offset + 8 + y * stride]; | |
272 | ||
273 | d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1); | |
274 | d = FFMAX(d, 0); | |
275 | if (b < 0) | |
276 | d = -d; | |
277 | ||
278 | if (d == 0) | |
279 | continue; | |
280 | ||
281 | if (!(left_damage && right_damage)) | |
282 | d = d * 16 / 9; | |
283 | ||
284 | if (left_damage) { | |
285 | dst[offset + 7 + y * stride] = cm[dst[offset + 7 + y * stride] + ((d * 7) >> 4)]; | |
286 | dst[offset + 6 + y * stride] = cm[dst[offset + 6 + y * stride] + ((d * 5) >> 4)]; | |
287 | dst[offset + 5 + y * stride] = cm[dst[offset + 5 + y * stride] + ((d * 3) >> 4)]; | |
288 | dst[offset + 4 + y * stride] = cm[dst[offset + 4 + y * stride] + ((d * 1) >> 4)]; | |
289 | } | |
290 | if (right_damage) { | |
291 | dst[offset + 8 + y * stride] = cm[dst[offset + 8 + y * stride] - ((d * 7) >> 4)]; | |
292 | dst[offset + 9 + y * stride] = cm[dst[offset + 9 + y * stride] - ((d * 5) >> 4)]; | |
293 | dst[offset + 10+ y * stride] = cm[dst[offset + 10 + y * stride] - ((d * 3) >> 4)]; | |
294 | dst[offset + 11+ y * stride] = cm[dst[offset + 11 + y * stride] - ((d * 1) >> 4)]; | |
295 | } | |
296 | } | |
297 | } | |
298 | } | |
299 | } | |
300 | ||
301 | /** | |
302 | * simple vertical deblocking filter used for error resilience | |
303 | * @param w width in 8 pixel blocks | |
304 | * @param h height in 8 pixel blocks | |
305 | */ | |
306 | static void v_block_filter(ERContext *s, uint8_t *dst, int w, int h, | |
307 | int stride, int is_luma) | |
308 | { | |
309 | int b_x, b_y, mvx_stride, mvy_stride; | |
310 | const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP; | |
311 | set_mv_strides(s, &mvx_stride, &mvy_stride); | |
312 | mvx_stride >>= is_luma; | |
313 | mvy_stride *= mvx_stride; | |
314 | ||
315 | for (b_y = 0; b_y < h - 1; b_y++) { | |
316 | for (b_x = 0; b_x < w; b_x++) { | |
317 | int x; | |
318 | int top_status = s->error_status_table[(b_x >> is_luma) + (b_y >> is_luma) * s->mb_stride]; | |
319 | int bottom_status = s->error_status_table[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride]; | |
320 | int top_intra = IS_INTRA(s->cur_pic.mb_type[(b_x >> is_luma) + ( b_y >> is_luma) * s->mb_stride]); | |
321 | int bottom_intra = IS_INTRA(s->cur_pic.mb_type[(b_x >> is_luma) + ((b_y + 1) >> is_luma) * s->mb_stride]); | |
322 | int top_damage = top_status & ER_MB_ERROR; | |
323 | int bottom_damage = bottom_status & ER_MB_ERROR; | |
324 | int offset = b_x * 8 + b_y * stride * 8; | |
325 | ||
326 | int16_t *top_mv = s->cur_pic.motion_val[0][mvy_stride * b_y + mvx_stride * b_x]; | |
327 | int16_t *bottom_mv = s->cur_pic.motion_val[0][mvy_stride * (b_y + 1) + mvx_stride * b_x]; | |
328 | ||
329 | if (!(top_damage || bottom_damage)) | |
330 | continue; // both undamaged | |
331 | ||
332 | if ((!top_intra) && (!bottom_intra) && | |
333 | FFABS(top_mv[0] - bottom_mv[0]) + | |
334 | FFABS(top_mv[1] + bottom_mv[1]) < 2) | |
335 | continue; | |
336 | ||
337 | for (x = 0; x < 8; x++) { | |
338 | int a, b, c, d; | |
339 | ||
340 | a = dst[offset + x + 7 * stride] - dst[offset + x + 6 * stride]; | |
341 | b = dst[offset + x + 8 * stride] - dst[offset + x + 7 * stride]; | |
342 | c = dst[offset + x + 9 * stride] - dst[offset + x + 8 * stride]; | |
343 | ||
344 | d = FFABS(b) - ((FFABS(a) + FFABS(c) + 1) >> 1); | |
345 | d = FFMAX(d, 0); | |
346 | if (b < 0) | |
347 | d = -d; | |
348 | ||
349 | if (d == 0) | |
350 | continue; | |
351 | ||
352 | if (!(top_damage && bottom_damage)) | |
353 | d = d * 16 / 9; | |
354 | ||
355 | if (top_damage) { | |
356 | dst[offset + x + 7 * stride] = cm[dst[offset + x + 7 * stride] + ((d * 7) >> 4)]; | |
357 | dst[offset + x + 6 * stride] = cm[dst[offset + x + 6 * stride] + ((d * 5) >> 4)]; | |
358 | dst[offset + x + 5 * stride] = cm[dst[offset + x + 5 * stride] + ((d * 3) >> 4)]; | |
359 | dst[offset + x + 4 * stride] = cm[dst[offset + x + 4 * stride] + ((d * 1) >> 4)]; | |
360 | } | |
361 | if (bottom_damage) { | |
362 | dst[offset + x + 8 * stride] = cm[dst[offset + x + 8 * stride] - ((d * 7) >> 4)]; | |
363 | dst[offset + x + 9 * stride] = cm[dst[offset + x + 9 * stride] - ((d * 5) >> 4)]; | |
364 | dst[offset + x + 10 * stride] = cm[dst[offset + x + 10 * stride] - ((d * 3) >> 4)]; | |
365 | dst[offset + x + 11 * stride] = cm[dst[offset + x + 11 * stride] - ((d * 1) >> 4)]; | |
366 | } | |
367 | } | |
368 | } | |
369 | } | |
370 | } | |
371 | ||
372 | static void guess_mv(ERContext *s) | |
373 | { | |
374 | uint8_t *fixed = s->er_temp_buffer; | |
375 | #define MV_FROZEN 3 | |
376 | #define MV_CHANGED 2 | |
377 | #define MV_UNCHANGED 1 | |
378 | const int mb_stride = s->mb_stride; | |
379 | const int mb_width = s->mb_width; | |
380 | const int mb_height = s->mb_height; | |
381 | int i, depth, num_avail; | |
382 | int mb_x, mb_y, mot_step, mot_stride; | |
383 | ||
384 | set_mv_strides(s, &mot_step, &mot_stride); | |
385 | ||
386 | num_avail = 0; | |
387 | for (i = 0; i < s->mb_num; i++) { | |
388 | const int mb_xy = s->mb_index2xy[i]; | |
389 | int f = 0; | |
390 | int error = s->error_status_table[mb_xy]; | |
391 | ||
392 | if (IS_INTRA(s->cur_pic.mb_type[mb_xy])) | |
393 | f = MV_FROZEN; // intra // FIXME check | |
394 | if (!(error & ER_MV_ERROR)) | |
395 | f = MV_FROZEN; // inter with undamaged MV | |
396 | ||
397 | fixed[mb_xy] = f; | |
398 | if (f == MV_FROZEN) | |
399 | num_avail++; | |
400 | else if(s->last_pic.f->data[0] && s->last_pic.motion_val[0]){ | |
401 | const int mb_y= mb_xy / s->mb_stride; | |
402 | const int mb_x= mb_xy % s->mb_stride; | |
403 | const int mot_index= (mb_x + mb_y*mot_stride) * mot_step; | |
404 | s->cur_pic.motion_val[0][mot_index][0]= s->last_pic.motion_val[0][mot_index][0]; | |
405 | s->cur_pic.motion_val[0][mot_index][1]= s->last_pic.motion_val[0][mot_index][1]; | |
406 | s->cur_pic.ref_index[0][4*mb_xy] = s->last_pic.ref_index[0][4*mb_xy]; | |
407 | } | |
408 | } | |
409 | ||
410 | if ((!(s->avctx->error_concealment&FF_EC_GUESS_MVS)) || | |
411 | num_avail <= mb_width / 2) { | |
412 | for (mb_y = 0; mb_y < s->mb_height; mb_y++) { | |
413 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { | |
414 | const int mb_xy = mb_x + mb_y * s->mb_stride; | |
415 | int mv_dir = (s->last_pic.f && s->last_pic.f->data[0]) ? MV_DIR_FORWARD : MV_DIR_BACKWARD; | |
416 | ||
417 | if (IS_INTRA(s->cur_pic.mb_type[mb_xy])) | |
418 | continue; | |
419 | if (!(s->error_status_table[mb_xy] & ER_MV_ERROR)) | |
420 | continue; | |
421 | ||
422 | s->mv[0][0][0] = 0; | |
423 | s->mv[0][0][1] = 0; | |
424 | s->decode_mb(s->opaque, 0, mv_dir, MV_TYPE_16X16, &s->mv, | |
425 | mb_x, mb_y, 0, 0); | |
426 | } | |
427 | } | |
428 | return; | |
429 | } | |
430 | ||
431 | for (depth = 0; ; depth++) { | |
432 | int changed, pass, none_left; | |
433 | ||
434 | none_left = 1; | |
435 | changed = 1; | |
436 | for (pass = 0; (changed || pass < 2) && pass < 10; pass++) { | |
437 | int mb_x, mb_y; | |
438 | int score_sum = 0; | |
439 | ||
440 | changed = 0; | |
441 | for (mb_y = 0; mb_y < s->mb_height; mb_y++) { | |
442 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { | |
443 | const int mb_xy = mb_x + mb_y * s->mb_stride; | |
444 | int mv_predictor[8][2] = { { 0 } }; | |
445 | int ref[8] = { 0 }; | |
446 | int pred_count = 0; | |
447 | int j; | |
448 | int best_score = 256 * 256 * 256 * 64; | |
449 | int best_pred = 0; | |
450 | const int mot_index = (mb_x + mb_y * mot_stride) * mot_step; | |
f6fa7814 | 451 | int prev_x = 0, prev_y = 0, prev_ref = 0; |
2ba45a60 DM |
452 | |
453 | if ((mb_x ^ mb_y ^ pass) & 1) | |
454 | continue; | |
455 | ||
456 | if (fixed[mb_xy] == MV_FROZEN) | |
457 | continue; | |
458 | av_assert1(!IS_INTRA(s->cur_pic.mb_type[mb_xy])); | |
459 | av_assert1(s->last_pic.f && s->last_pic.f->data[0]); | |
460 | ||
461 | j = 0; | |
462 | if (mb_x > 0 && fixed[mb_xy - 1] == MV_FROZEN) | |
463 | j = 1; | |
464 | if (mb_x + 1 < mb_width && fixed[mb_xy + 1] == MV_FROZEN) | |
465 | j = 1; | |
466 | if (mb_y > 0 && fixed[mb_xy - mb_stride] == MV_FROZEN) | |
467 | j = 1; | |
468 | if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride] == MV_FROZEN) | |
469 | j = 1; | |
470 | if (j == 0) | |
471 | continue; | |
472 | ||
473 | j = 0; | |
474 | if (mb_x > 0 && fixed[mb_xy - 1 ] == MV_CHANGED) | |
475 | j = 1; | |
476 | if (mb_x + 1 < mb_width && fixed[mb_xy + 1 ] == MV_CHANGED) | |
477 | j = 1; | |
478 | if (mb_y > 0 && fixed[mb_xy - mb_stride] == MV_CHANGED) | |
479 | j = 1; | |
480 | if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride] == MV_CHANGED) | |
481 | j = 1; | |
482 | if (j == 0 && pass > 1) | |
483 | continue; | |
484 | ||
485 | none_left = 0; | |
486 | ||
487 | if (mb_x > 0 && fixed[mb_xy - 1]) { | |
488 | mv_predictor[pred_count][0] = | |
489 | s->cur_pic.motion_val[0][mot_index - mot_step][0]; | |
490 | mv_predictor[pred_count][1] = | |
491 | s->cur_pic.motion_val[0][mot_index - mot_step][1]; | |
492 | ref[pred_count] = | |
493 | s->cur_pic.ref_index[0][4 * (mb_xy - 1)]; | |
494 | pred_count++; | |
495 | } | |
496 | if (mb_x + 1 < mb_width && fixed[mb_xy + 1]) { | |
497 | mv_predictor[pred_count][0] = | |
498 | s->cur_pic.motion_val[0][mot_index + mot_step][0]; | |
499 | mv_predictor[pred_count][1] = | |
500 | s->cur_pic.motion_val[0][mot_index + mot_step][1]; | |
501 | ref[pred_count] = | |
502 | s->cur_pic.ref_index[0][4 * (mb_xy + 1)]; | |
503 | pred_count++; | |
504 | } | |
505 | if (mb_y > 0 && fixed[mb_xy - mb_stride]) { | |
506 | mv_predictor[pred_count][0] = | |
507 | s->cur_pic.motion_val[0][mot_index - mot_stride * mot_step][0]; | |
508 | mv_predictor[pred_count][1] = | |
509 | s->cur_pic.motion_val[0][mot_index - mot_stride * mot_step][1]; | |
510 | ref[pred_count] = | |
511 | s->cur_pic.ref_index[0][4 * (mb_xy - s->mb_stride)]; | |
512 | pred_count++; | |
513 | } | |
514 | if (mb_y + 1<mb_height && fixed[mb_xy + mb_stride]) { | |
515 | mv_predictor[pred_count][0] = | |
516 | s->cur_pic.motion_val[0][mot_index + mot_stride * mot_step][0]; | |
517 | mv_predictor[pred_count][1] = | |
518 | s->cur_pic.motion_val[0][mot_index + mot_stride * mot_step][1]; | |
519 | ref[pred_count] = | |
520 | s->cur_pic.ref_index[0][4 * (mb_xy + s->mb_stride)]; | |
521 | pred_count++; | |
522 | } | |
523 | if (pred_count == 0) | |
524 | continue; | |
525 | ||
526 | if (pred_count > 1) { | |
527 | int sum_x = 0, sum_y = 0, sum_r = 0; | |
528 | int max_x, max_y, min_x, min_y, max_r, min_r; | |
529 | ||
530 | for (j = 0; j < pred_count; j++) { | |
531 | sum_x += mv_predictor[j][0]; | |
532 | sum_y += mv_predictor[j][1]; | |
533 | sum_r += ref[j]; | |
534 | if (j && ref[j] != ref[j - 1]) | |
535 | goto skip_mean_and_median; | |
536 | } | |
537 | ||
538 | /* mean */ | |
539 | mv_predictor[pred_count][0] = sum_x / j; | |
540 | mv_predictor[pred_count][1] = sum_y / j; | |
541 | ref[pred_count] = sum_r / j; | |
542 | ||
543 | /* median */ | |
544 | if (pred_count >= 3) { | |
545 | min_y = min_x = min_r = 99999; | |
546 | max_y = max_x = max_r = -99999; | |
547 | } else { | |
548 | min_x = min_y = max_x = max_y = min_r = max_r = 0; | |
549 | } | |
550 | for (j = 0; j < pred_count; j++) { | |
551 | max_x = FFMAX(max_x, mv_predictor[j][0]); | |
552 | max_y = FFMAX(max_y, mv_predictor[j][1]); | |
553 | max_r = FFMAX(max_r, ref[j]); | |
554 | min_x = FFMIN(min_x, mv_predictor[j][0]); | |
555 | min_y = FFMIN(min_y, mv_predictor[j][1]); | |
556 | min_r = FFMIN(min_r, ref[j]); | |
557 | } | |
558 | mv_predictor[pred_count + 1][0] = sum_x - max_x - min_x; | |
559 | mv_predictor[pred_count + 1][1] = sum_y - max_y - min_y; | |
560 | ref[pred_count + 1] = sum_r - max_r - min_r; | |
561 | ||
562 | if (pred_count == 4) { | |
563 | mv_predictor[pred_count + 1][0] /= 2; | |
564 | mv_predictor[pred_count + 1][1] /= 2; | |
565 | ref[pred_count + 1] /= 2; | |
566 | } | |
567 | pred_count += 2; | |
568 | } | |
569 | ||
570 | skip_mean_and_median: | |
571 | /* zero MV */ | |
572 | pred_count++; | |
573 | ||
574 | if (!fixed[mb_xy] && 0) { | |
575 | if (s->avctx->codec_id == AV_CODEC_ID_H264) { | |
576 | // FIXME | |
577 | } else { | |
578 | ff_thread_await_progress(s->last_pic.tf, | |
579 | mb_y, 0); | |
580 | } | |
581 | if (!s->last_pic.motion_val[0] || | |
582 | !s->last_pic.ref_index[0]) | |
583 | goto skip_last_mv; | |
584 | prev_x = s->last_pic.motion_val[0][mot_index][0]; | |
585 | prev_y = s->last_pic.motion_val[0][mot_index][1]; | |
586 | prev_ref = s->last_pic.ref_index[0][4 * mb_xy]; | |
587 | } else { | |
588 | prev_x = s->cur_pic.motion_val[0][mot_index][0]; | |
589 | prev_y = s->cur_pic.motion_val[0][mot_index][1]; | |
590 | prev_ref = s->cur_pic.ref_index[0][4 * mb_xy]; | |
591 | } | |
592 | ||
593 | /* last MV */ | |
594 | mv_predictor[pred_count][0] = prev_x; | |
595 | mv_predictor[pred_count][1] = prev_y; | |
596 | ref[pred_count] = prev_ref; | |
597 | pred_count++; | |
598 | ||
599 | skip_last_mv: | |
600 | ||
601 | for (j = 0; j < pred_count; j++) { | |
602 | int *linesize = s->cur_pic.f->linesize; | |
603 | int score = 0; | |
604 | uint8_t *src = s->cur_pic.f->data[0] + | |
605 | mb_x * 16 + mb_y * 16 * linesize[0]; | |
606 | ||
607 | s->cur_pic.motion_val[0][mot_index][0] = | |
608 | s->mv[0][0][0] = mv_predictor[j][0]; | |
609 | s->cur_pic.motion_val[0][mot_index][1] = | |
610 | s->mv[0][0][1] = mv_predictor[j][1]; | |
611 | ||
612 | // predictor intra or otherwise not available | |
613 | if (ref[j] < 0) | |
614 | continue; | |
615 | ||
616 | s->decode_mb(s->opaque, ref[j], MV_DIR_FORWARD, | |
617 | MV_TYPE_16X16, &s->mv, mb_x, mb_y, 0, 0); | |
618 | ||
619 | if (mb_x > 0 && fixed[mb_xy - 1]) { | |
620 | int k; | |
621 | for (k = 0; k < 16; k++) | |
622 | score += FFABS(src[k * linesize[0] - 1] - | |
623 | src[k * linesize[0]]); | |
624 | } | |
625 | if (mb_x + 1 < mb_width && fixed[mb_xy + 1]) { | |
626 | int k; | |
627 | for (k = 0; k < 16; k++) | |
628 | score += FFABS(src[k * linesize[0] + 15] - | |
629 | src[k * linesize[0] + 16]); | |
630 | } | |
631 | if (mb_y > 0 && fixed[mb_xy - mb_stride]) { | |
632 | int k; | |
633 | for (k = 0; k < 16; k++) | |
634 | score += FFABS(src[k - linesize[0]] - src[k]); | |
635 | } | |
636 | if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride]) { | |
637 | int k; | |
638 | for (k = 0; k < 16; k++) | |
639 | score += FFABS(src[k + linesize[0] * 15] - | |
640 | src[k + linesize[0] * 16]); | |
641 | } | |
642 | ||
643 | if (score <= best_score) { // <= will favor the last MV | |
644 | best_score = score; | |
645 | best_pred = j; | |
646 | } | |
647 | } | |
648 | score_sum += best_score; | |
649 | s->mv[0][0][0] = mv_predictor[best_pred][0]; | |
650 | s->mv[0][0][1] = mv_predictor[best_pred][1]; | |
651 | ||
652 | for (i = 0; i < mot_step; i++) | |
653 | for (j = 0; j < mot_step; j++) { | |
654 | s->cur_pic.motion_val[0][mot_index + i + j * mot_stride][0] = s->mv[0][0][0]; | |
655 | s->cur_pic.motion_val[0][mot_index + i + j * mot_stride][1] = s->mv[0][0][1]; | |
656 | } | |
657 | ||
658 | s->decode_mb(s->opaque, ref[best_pred], MV_DIR_FORWARD, | |
659 | MV_TYPE_16X16, &s->mv, mb_x, mb_y, 0, 0); | |
660 | ||
661 | ||
662 | if (s->mv[0][0][0] != prev_x || s->mv[0][0][1] != prev_y) { | |
663 | fixed[mb_xy] = MV_CHANGED; | |
664 | changed++; | |
665 | } else | |
666 | fixed[mb_xy] = MV_UNCHANGED; | |
667 | } | |
668 | } | |
669 | } | |
670 | ||
671 | if (none_left) | |
672 | return; | |
673 | ||
674 | for (i = 0; i < s->mb_num; i++) { | |
675 | int mb_xy = s->mb_index2xy[i]; | |
676 | if (fixed[mb_xy]) | |
677 | fixed[mb_xy] = MV_FROZEN; | |
678 | } | |
679 | } | |
680 | } | |
681 | ||
682 | static int is_intra_more_likely(ERContext *s) | |
683 | { | |
684 | int is_intra_likely, i, j, undamaged_count, skip_amount, mb_x, mb_y; | |
685 | ||
686 | if (!s->last_pic.f || !s->last_pic.f->data[0]) | |
687 | return 1; // no previous frame available -> use spatial prediction | |
688 | ||
689 | if (s->avctx->error_concealment & FF_EC_FAVOR_INTER) | |
690 | return 0; | |
691 | ||
692 | undamaged_count = 0; | |
693 | for (i = 0; i < s->mb_num; i++) { | |
694 | const int mb_xy = s->mb_index2xy[i]; | |
695 | const int error = s->error_status_table[mb_xy]; | |
696 | if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR))) | |
697 | undamaged_count++; | |
698 | } | |
699 | ||
700 | if (s->avctx->codec_id == AV_CODEC_ID_H264 && s->ref_count <= 0) | |
701 | return 1; | |
702 | ||
703 | if (undamaged_count < 5) | |
704 | return 0; // almost all MBs damaged -> use temporal prediction | |
705 | ||
706 | // prevent dsp.sad() check, that requires access to the image | |
707 | if (CONFIG_XVMC && | |
708 | s->avctx->hwaccel && s->avctx->hwaccel->decode_mb && | |
709 | s->cur_pic.f->pict_type == AV_PICTURE_TYPE_I) | |
710 | return 1; | |
711 | ||
712 | skip_amount = FFMAX(undamaged_count / 50, 1); // check only up to 50 MBs | |
713 | is_intra_likely = 0; | |
714 | ||
715 | j = 0; | |
716 | for (mb_y = 0; mb_y < s->mb_height - 1; mb_y++) { | |
717 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { | |
718 | int error; | |
719 | const int mb_xy = mb_x + mb_y * s->mb_stride; | |
720 | ||
721 | error = s->error_status_table[mb_xy]; | |
722 | if ((error & ER_DC_ERROR) && (error & ER_MV_ERROR)) | |
723 | continue; // skip damaged | |
724 | ||
725 | j++; | |
726 | // skip a few to speed things up | |
727 | if ((j % skip_amount) != 0) | |
728 | continue; | |
729 | ||
730 | if (s->cur_pic.f->pict_type == AV_PICTURE_TYPE_I) { | |
731 | int *linesize = s->cur_pic.f->linesize; | |
732 | uint8_t *mb_ptr = s->cur_pic.f->data[0] + | |
733 | mb_x * 16 + mb_y * 16 * linesize[0]; | |
734 | uint8_t *last_mb_ptr = s->last_pic.f->data[0] + | |
735 | mb_x * 16 + mb_y * 16 * linesize[0]; | |
736 | ||
737 | if (s->avctx->codec_id == AV_CODEC_ID_H264) { | |
738 | // FIXME | |
739 | } else { | |
740 | ff_thread_await_progress(s->last_pic.tf, mb_y, 0); | |
741 | } | |
742 | is_intra_likely += s->mecc->sad[0](NULL, last_mb_ptr, mb_ptr, | |
743 | linesize[0], 16); | |
744 | // FIXME need await_progress() here | |
745 | is_intra_likely -= s->mecc->sad[0](NULL, last_mb_ptr, | |
746 | last_mb_ptr + linesize[0] * 16, | |
747 | linesize[0], 16); | |
748 | } else { | |
749 | if (IS_INTRA(s->cur_pic.mb_type[mb_xy])) | |
750 | is_intra_likely++; | |
751 | else | |
752 | is_intra_likely--; | |
753 | } | |
754 | } | |
755 | } | |
756 | // av_log(NULL, AV_LOG_ERROR, "is_intra_likely: %d type:%d\n", is_intra_likely, s->pict_type); | |
757 | return is_intra_likely > 0; | |
758 | } | |
759 | ||
760 | void ff_er_frame_start(ERContext *s) | |
761 | { | |
762 | if (!s->avctx->error_concealment) | |
763 | return; | |
764 | ||
765 | memset(s->error_status_table, ER_MB_ERROR | VP_START | ER_MB_END, | |
766 | s->mb_stride * s->mb_height * sizeof(uint8_t)); | |
767 | s->error_count = 3 * s->mb_num; | |
768 | s->error_occurred = 0; | |
769 | } | |
770 | ||
771 | static int er_supported(ERContext *s) | |
772 | { | |
773 | if(s->avctx->hwaccel && s->avctx->hwaccel->decode_slice || | |
774 | s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU || | |
775 | !s->cur_pic.f || | |
776 | s->cur_pic.field_picture | |
777 | ) | |
778 | return 0; | |
779 | return 1; | |
780 | } | |
781 | ||
782 | /** | |
783 | * Add a slice. | |
784 | * @param endx x component of the last macroblock, can be -1 | |
785 | * for the last of the previous line | |
786 | * @param status the status at the end (ER_MV_END, ER_AC_ERROR, ...), it is | |
787 | * assumed that no earlier end or error of the same type occurred | |
788 | */ | |
789 | void ff_er_add_slice(ERContext *s, int startx, int starty, | |
790 | int endx, int endy, int status) | |
791 | { | |
792 | const int start_i = av_clip(startx + starty * s->mb_width, 0, s->mb_num - 1); | |
793 | const int end_i = av_clip(endx + endy * s->mb_width, 0, s->mb_num); | |
794 | const int start_xy = s->mb_index2xy[start_i]; | |
795 | const int end_xy = s->mb_index2xy[end_i]; | |
796 | int mask = -1; | |
797 | ||
798 | if (s->avctx->hwaccel && s->avctx->hwaccel->decode_slice) | |
799 | return; | |
800 | ||
801 | if (start_i > end_i || start_xy > end_xy) { | |
802 | av_log(s->avctx, AV_LOG_ERROR, | |
803 | "internal error, slice end before start\n"); | |
804 | return; | |
805 | } | |
806 | ||
807 | if (!s->avctx->error_concealment) | |
808 | return; | |
809 | ||
810 | mask &= ~VP_START; | |
811 | if (status & (ER_AC_ERROR | ER_AC_END)) { | |
812 | mask &= ~(ER_AC_ERROR | ER_AC_END); | |
813 | s->error_count -= end_i - start_i + 1; | |
814 | } | |
815 | if (status & (ER_DC_ERROR | ER_DC_END)) { | |
816 | mask &= ~(ER_DC_ERROR | ER_DC_END); | |
817 | s->error_count -= end_i - start_i + 1; | |
818 | } | |
819 | if (status & (ER_MV_ERROR | ER_MV_END)) { | |
820 | mask &= ~(ER_MV_ERROR | ER_MV_END); | |
821 | s->error_count -= end_i - start_i + 1; | |
822 | } | |
823 | ||
824 | if (status & ER_MB_ERROR) { | |
825 | s->error_occurred = 1; | |
826 | s->error_count = INT_MAX; | |
827 | } | |
828 | ||
829 | if (mask == ~0x7F) { | |
830 | memset(&s->error_status_table[start_xy], 0, | |
831 | (end_xy - start_xy) * sizeof(uint8_t)); | |
832 | } else { | |
833 | int i; | |
834 | for (i = start_xy; i < end_xy; i++) | |
835 | s->error_status_table[i] &= mask; | |
836 | } | |
837 | ||
838 | if (end_i == s->mb_num) | |
839 | s->error_count = INT_MAX; | |
840 | else { | |
841 | s->error_status_table[end_xy] &= mask; | |
842 | s->error_status_table[end_xy] |= status; | |
843 | } | |
844 | ||
845 | s->error_status_table[start_xy] |= VP_START; | |
846 | ||
847 | if (start_xy > 0 && !(s->avctx->active_thread_type & FF_THREAD_SLICE) && | |
848 | er_supported(s) && s->avctx->skip_top * s->mb_width < start_i) { | |
849 | int prev_status = s->error_status_table[s->mb_index2xy[start_i - 1]]; | |
850 | ||
851 | prev_status &= ~ VP_START; | |
852 | if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END)) { | |
853 | s->error_occurred = 1; | |
854 | s->error_count = INT_MAX; | |
855 | } | |
856 | } | |
857 | } | |
858 | ||
859 | void ff_er_frame_end(ERContext *s) | |
860 | { | |
f6fa7814 | 861 | int *linesize = NULL; |
2ba45a60 DM |
862 | int i, mb_x, mb_y, error, error_type, dc_error, mv_error, ac_error; |
863 | int distance; | |
864 | int threshold_part[4] = { 100, 100, 100 }; | |
865 | int threshold = 50; | |
866 | int is_intra_likely; | |
867 | int size = s->b8_stride * 2 * s->mb_height; | |
868 | ||
869 | /* We do not support ER of field pictures yet, | |
870 | * though it should not crash if enabled. */ | |
871 | if (!s->avctx->error_concealment || s->error_count == 0 || | |
872 | s->avctx->lowres || | |
873 | !er_supported(s) || | |
874 | s->error_count == 3 * s->mb_width * | |
875 | (s->avctx->skip_top + s->avctx->skip_bottom)) { | |
876 | return; | |
877 | } | |
f6fa7814 | 878 | linesize = s->cur_pic.f->linesize; |
2ba45a60 DM |
879 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { |
880 | int status = s->error_status_table[mb_x + (s->mb_height - 1) * s->mb_stride]; | |
881 | if (status != 0x7F) | |
882 | break; | |
883 | } | |
884 | ||
885 | if ( mb_x == s->mb_width | |
886 | && s->avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO | |
887 | && (s->avctx->height&16) | |
888 | && s->error_count == 3 * s->mb_width * (s->avctx->skip_top + s->avctx->skip_bottom + 1) | |
889 | ) { | |
890 | av_log(s->avctx, AV_LOG_DEBUG, "ignoring last missing slice\n"); | |
891 | return; | |
892 | } | |
893 | ||
894 | if (s->last_pic.f) { | |
895 | if (s->last_pic.f->width != s->cur_pic.f->width || | |
896 | s->last_pic.f->height != s->cur_pic.f->height || | |
897 | s->last_pic.f->format != s->cur_pic.f->format) { | |
898 | av_log(s->avctx, AV_LOG_WARNING, "Cannot use previous picture in error concealment\n"); | |
899 | memset(&s->last_pic, 0, sizeof(s->last_pic)); | |
900 | } | |
901 | } | |
902 | if (s->next_pic.f) { | |
903 | if (s->next_pic.f->width != s->cur_pic.f->width || | |
904 | s->next_pic.f->height != s->cur_pic.f->height || | |
905 | s->next_pic.f->format != s->cur_pic.f->format) { | |
906 | av_log(s->avctx, AV_LOG_WARNING, "Cannot use next picture in error concealment\n"); | |
907 | memset(&s->next_pic, 0, sizeof(s->next_pic)); | |
908 | } | |
909 | } | |
910 | ||
911 | if (!s->cur_pic.motion_val[0] || !s->cur_pic.ref_index[0]) { | |
912 | av_log(s->avctx, AV_LOG_ERROR, "Warning MVs not available\n"); | |
913 | ||
914 | for (i = 0; i < 2; i++) { | |
915 | s->ref_index_buf[i] = av_buffer_allocz(s->mb_stride * s->mb_height * 4 * sizeof(uint8_t)); | |
916 | s->motion_val_buf[i] = av_buffer_allocz((size + 4) * 2 * sizeof(uint16_t)); | |
917 | if (!s->ref_index_buf[i] || !s->motion_val_buf[i]) | |
918 | break; | |
919 | s->cur_pic.ref_index[i] = s->ref_index_buf[i]->data; | |
920 | s->cur_pic.motion_val[i] = (int16_t (*)[2])s->motion_val_buf[i]->data + 4; | |
921 | } | |
922 | if (i < 2) { | |
923 | for (i = 0; i < 2; i++) { | |
924 | av_buffer_unref(&s->ref_index_buf[i]); | |
925 | av_buffer_unref(&s->motion_val_buf[i]); | |
926 | s->cur_pic.ref_index[i] = NULL; | |
927 | s->cur_pic.motion_val[i] = NULL; | |
928 | } | |
929 | return; | |
930 | } | |
931 | } | |
932 | ||
933 | if (s->avctx->debug & FF_DEBUG_ER) { | |
934 | for (mb_y = 0; mb_y < s->mb_height; mb_y++) { | |
935 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { | |
936 | int status = s->error_status_table[mb_x + mb_y * s->mb_stride]; | |
937 | ||
938 | av_log(s->avctx, AV_LOG_DEBUG, "%2X ", status); | |
939 | } | |
940 | av_log(s->avctx, AV_LOG_DEBUG, "\n"); | |
941 | } | |
942 | } | |
943 | ||
944 | #if 1 | |
945 | /* handle overlapping slices */ | |
946 | for (error_type = 1; error_type <= 3; error_type++) { | |
947 | int end_ok = 0; | |
948 | ||
949 | for (i = s->mb_num - 1; i >= 0; i--) { | |
950 | const int mb_xy = s->mb_index2xy[i]; | |
951 | int error = s->error_status_table[mb_xy]; | |
952 | ||
953 | if (error & (1 << error_type)) | |
954 | end_ok = 1; | |
955 | if (error & (8 << error_type)) | |
956 | end_ok = 1; | |
957 | ||
958 | if (!end_ok) | |
959 | s->error_status_table[mb_xy] |= 1 << error_type; | |
960 | ||
961 | if (error & VP_START) | |
962 | end_ok = 0; | |
963 | } | |
964 | } | |
965 | #endif | |
966 | #if 1 | |
967 | /* handle slices with partitions of different length */ | |
968 | if (s->partitioned_frame) { | |
969 | int end_ok = 0; | |
970 | ||
971 | for (i = s->mb_num - 1; i >= 0; i--) { | |
972 | const int mb_xy = s->mb_index2xy[i]; | |
973 | int error = s->error_status_table[mb_xy]; | |
974 | ||
975 | if (error & ER_AC_END) | |
976 | end_ok = 0; | |
977 | if ((error & ER_MV_END) || | |
978 | (error & ER_DC_END) || | |
979 | (error & ER_AC_ERROR)) | |
980 | end_ok = 1; | |
981 | ||
982 | if (!end_ok) | |
983 | s->error_status_table[mb_xy]|= ER_AC_ERROR; | |
984 | ||
985 | if (error & VP_START) | |
986 | end_ok = 0; | |
987 | } | |
988 | } | |
989 | #endif | |
990 | /* handle missing slices */ | |
991 | if (s->avctx->err_recognition & AV_EF_EXPLODE) { | |
992 | int end_ok = 1; | |
993 | ||
994 | // FIXME + 100 hack | |
995 | for (i = s->mb_num - 2; i >= s->mb_width + 100; i--) { | |
996 | const int mb_xy = s->mb_index2xy[i]; | |
997 | int error1 = s->error_status_table[mb_xy]; | |
998 | int error2 = s->error_status_table[s->mb_index2xy[i + 1]]; | |
999 | ||
1000 | if (error1 & VP_START) | |
1001 | end_ok = 1; | |
1002 | ||
1003 | if (error2 == (VP_START | ER_MB_ERROR | ER_MB_END) && | |
1004 | error1 != (VP_START | ER_MB_ERROR | ER_MB_END) && | |
1005 | ((error1 & ER_AC_END) || (error1 & ER_DC_END) || | |
1006 | (error1 & ER_MV_END))) { | |
1007 | // end & uninit | |
1008 | end_ok = 0; | |
1009 | } | |
1010 | ||
1011 | if (!end_ok) | |
1012 | s->error_status_table[mb_xy] |= ER_MB_ERROR; | |
1013 | } | |
1014 | } | |
1015 | ||
1016 | #if 1 | |
1017 | /* backward mark errors */ | |
1018 | distance = 9999999; | |
1019 | for (error_type = 1; error_type <= 3; error_type++) { | |
1020 | for (i = s->mb_num - 1; i >= 0; i--) { | |
1021 | const int mb_xy = s->mb_index2xy[i]; | |
1022 | int error = s->error_status_table[mb_xy]; | |
1023 | ||
1024 | if (!s->mbskip_table[mb_xy]) // FIXME partition specific | |
1025 | distance++; | |
1026 | if (error & (1 << error_type)) | |
1027 | distance = 0; | |
1028 | ||
1029 | if (s->partitioned_frame) { | |
1030 | if (distance < threshold_part[error_type - 1]) | |
1031 | s->error_status_table[mb_xy] |= 1 << error_type; | |
1032 | } else { | |
1033 | if (distance < threshold) | |
1034 | s->error_status_table[mb_xy] |= 1 << error_type; | |
1035 | } | |
1036 | ||
1037 | if (error & VP_START) | |
1038 | distance = 9999999; | |
1039 | } | |
1040 | } | |
1041 | #endif | |
1042 | ||
1043 | /* forward mark errors */ | |
1044 | error = 0; | |
1045 | for (i = 0; i < s->mb_num; i++) { | |
1046 | const int mb_xy = s->mb_index2xy[i]; | |
1047 | int old_error = s->error_status_table[mb_xy]; | |
1048 | ||
1049 | if (old_error & VP_START) { | |
1050 | error = old_error & ER_MB_ERROR; | |
1051 | } else { | |
1052 | error |= old_error & ER_MB_ERROR; | |
1053 | s->error_status_table[mb_xy] |= error; | |
1054 | } | |
1055 | } | |
1056 | #if 1 | |
1057 | /* handle not partitioned case */ | |
1058 | if (!s->partitioned_frame) { | |
1059 | for (i = 0; i < s->mb_num; i++) { | |
1060 | const int mb_xy = s->mb_index2xy[i]; | |
1061 | int error = s->error_status_table[mb_xy]; | |
1062 | if (error & ER_MB_ERROR) | |
1063 | error |= ER_MB_ERROR; | |
1064 | s->error_status_table[mb_xy] = error; | |
1065 | } | |
1066 | } | |
1067 | #endif | |
1068 | ||
1069 | dc_error = ac_error = mv_error = 0; | |
1070 | for (i = 0; i < s->mb_num; i++) { | |
1071 | const int mb_xy = s->mb_index2xy[i]; | |
1072 | int error = s->error_status_table[mb_xy]; | |
1073 | if (error & ER_DC_ERROR) | |
1074 | dc_error++; | |
1075 | if (error & ER_AC_ERROR) | |
1076 | ac_error++; | |
1077 | if (error & ER_MV_ERROR) | |
1078 | mv_error++; | |
1079 | } | |
1080 | av_log(s->avctx, AV_LOG_INFO, "concealing %d DC, %d AC, %d MV errors in %c frame\n", | |
1081 | dc_error, ac_error, mv_error, av_get_picture_type_char(s->cur_pic.f->pict_type)); | |
1082 | ||
1083 | is_intra_likely = is_intra_more_likely(s); | |
1084 | ||
1085 | /* set unknown mb-type to most likely */ | |
1086 | for (i = 0; i < s->mb_num; i++) { | |
1087 | const int mb_xy = s->mb_index2xy[i]; | |
1088 | int error = s->error_status_table[mb_xy]; | |
1089 | if (!((error & ER_DC_ERROR) && (error & ER_MV_ERROR))) | |
1090 | continue; | |
1091 | ||
1092 | if (is_intra_likely) | |
1093 | s->cur_pic.mb_type[mb_xy] = MB_TYPE_INTRA4x4; | |
1094 | else | |
1095 | s->cur_pic.mb_type[mb_xy] = MB_TYPE_16x16 | MB_TYPE_L0; | |
1096 | } | |
1097 | ||
1098 | // change inter to intra blocks if no reference frames are available | |
1099 | if (!(s->last_pic.f && s->last_pic.f->data[0]) && | |
1100 | !(s->next_pic.f && s->next_pic.f->data[0])) | |
1101 | for (i = 0; i < s->mb_num; i++) { | |
1102 | const int mb_xy = s->mb_index2xy[i]; | |
1103 | if (!IS_INTRA(s->cur_pic.mb_type[mb_xy])) | |
1104 | s->cur_pic.mb_type[mb_xy] = MB_TYPE_INTRA4x4; | |
1105 | } | |
1106 | ||
1107 | /* handle inter blocks with damaged AC */ | |
1108 | for (mb_y = 0; mb_y < s->mb_height; mb_y++) { | |
1109 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { | |
1110 | const int mb_xy = mb_x + mb_y * s->mb_stride; | |
1111 | const int mb_type = s->cur_pic.mb_type[mb_xy]; | |
1112 | const int dir = !(s->last_pic.f && s->last_pic.f->data[0]); | |
1113 | const int mv_dir = dir ? MV_DIR_BACKWARD : MV_DIR_FORWARD; | |
1114 | int mv_type; | |
1115 | ||
1116 | int error = s->error_status_table[mb_xy]; | |
1117 | ||
1118 | if (IS_INTRA(mb_type)) | |
1119 | continue; // intra | |
1120 | if (error & ER_MV_ERROR) | |
1121 | continue; // inter with damaged MV | |
1122 | if (!(error & ER_AC_ERROR)) | |
1123 | continue; // undamaged inter | |
1124 | ||
1125 | if (IS_8X8(mb_type)) { | |
1126 | int mb_index = mb_x * 2 + mb_y * 2 * s->b8_stride; | |
1127 | int j; | |
1128 | mv_type = MV_TYPE_8X8; | |
1129 | for (j = 0; j < 4; j++) { | |
1130 | s->mv[0][j][0] = s->cur_pic.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][0]; | |
1131 | s->mv[0][j][1] = s->cur_pic.motion_val[dir][mb_index + (j & 1) + (j >> 1) * s->b8_stride][1]; | |
1132 | } | |
1133 | } else { | |
1134 | mv_type = MV_TYPE_16X16; | |
1135 | s->mv[0][0][0] = s->cur_pic.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][0]; | |
1136 | s->mv[0][0][1] = s->cur_pic.motion_val[dir][mb_x * 2 + mb_y * 2 * s->b8_stride][1]; | |
1137 | } | |
1138 | ||
1139 | s->decode_mb(s->opaque, 0 /* FIXME h264 partitioned slices need this set */, | |
1140 | mv_dir, mv_type, &s->mv, mb_x, mb_y, 0, 0); | |
1141 | } | |
1142 | } | |
1143 | ||
1144 | /* guess MVs */ | |
1145 | if (s->cur_pic.f->pict_type == AV_PICTURE_TYPE_B) { | |
1146 | for (mb_y = 0; mb_y < s->mb_height; mb_y++) { | |
1147 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { | |
1148 | int xy = mb_x * 2 + mb_y * 2 * s->b8_stride; | |
1149 | const int mb_xy = mb_x + mb_y * s->mb_stride; | |
1150 | const int mb_type = s->cur_pic.mb_type[mb_xy]; | |
1151 | int mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD; | |
1152 | ||
1153 | int error = s->error_status_table[mb_xy]; | |
1154 | ||
1155 | if (IS_INTRA(mb_type)) | |
1156 | continue; | |
1157 | if (!(error & ER_MV_ERROR)) | |
1158 | continue; // inter with undamaged MV | |
1159 | if (!(error & ER_AC_ERROR)) | |
1160 | continue; // undamaged inter | |
1161 | ||
1162 | if (!(s->last_pic.f && s->last_pic.f->data[0])) | |
1163 | mv_dir &= ~MV_DIR_FORWARD; | |
1164 | if (!(s->next_pic.f && s->next_pic.f->data[0])) | |
1165 | mv_dir &= ~MV_DIR_BACKWARD; | |
1166 | ||
1167 | if (s->pp_time) { | |
1168 | int time_pp = s->pp_time; | |
1169 | int time_pb = s->pb_time; | |
1170 | ||
1171 | av_assert0(s->avctx->codec_id != AV_CODEC_ID_H264); | |
1172 | ff_thread_await_progress(s->next_pic.tf, mb_y, 0); | |
1173 | ||
1174 | s->mv[0][0][0] = s->next_pic.motion_val[0][xy][0] * time_pb / time_pp; | |
1175 | s->mv[0][0][1] = s->next_pic.motion_val[0][xy][1] * time_pb / time_pp; | |
1176 | s->mv[1][0][0] = s->next_pic.motion_val[0][xy][0] * (time_pb - time_pp) / time_pp; | |
1177 | s->mv[1][0][1] = s->next_pic.motion_val[0][xy][1] * (time_pb - time_pp) / time_pp; | |
1178 | } else { | |
1179 | s->mv[0][0][0] = 0; | |
1180 | s->mv[0][0][1] = 0; | |
1181 | s->mv[1][0][0] = 0; | |
1182 | s->mv[1][0][1] = 0; | |
1183 | } | |
1184 | ||
1185 | s->decode_mb(s->opaque, 0, mv_dir, MV_TYPE_16X16, &s->mv, | |
1186 | mb_x, mb_y, 0, 0); | |
1187 | } | |
1188 | } | |
1189 | } else | |
1190 | guess_mv(s); | |
1191 | ||
1192 | /* the filters below manipulate raw image, skip them */ | |
1193 | if (CONFIG_XVMC && s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) | |
1194 | goto ec_clean; | |
1195 | /* fill DC for inter blocks */ | |
1196 | for (mb_y = 0; mb_y < s->mb_height; mb_y++) { | |
1197 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { | |
1198 | int dc, dcu, dcv, y, n; | |
1199 | int16_t *dc_ptr; | |
1200 | uint8_t *dest_y, *dest_cb, *dest_cr; | |
1201 | const int mb_xy = mb_x + mb_y * s->mb_stride; | |
1202 | const int mb_type = s->cur_pic.mb_type[mb_xy]; | |
1203 | ||
1204 | // error = s->error_status_table[mb_xy]; | |
1205 | ||
1206 | if (IS_INTRA(mb_type) && s->partitioned_frame) | |
1207 | continue; | |
1208 | // if (error & ER_MV_ERROR) | |
1209 | // continue; // inter data damaged FIXME is this good? | |
1210 | ||
1211 | dest_y = s->cur_pic.f->data[0] + mb_x * 16 + mb_y * 16 * linesize[0]; | |
1212 | dest_cb = s->cur_pic.f->data[1] + mb_x * 8 + mb_y * 8 * linesize[1]; | |
1213 | dest_cr = s->cur_pic.f->data[2] + mb_x * 8 + mb_y * 8 * linesize[2]; | |
1214 | ||
1215 | dc_ptr = &s->dc_val[0][mb_x * 2 + mb_y * 2 * s->b8_stride]; | |
1216 | for (n = 0; n < 4; n++) { | |
1217 | dc = 0; | |
1218 | for (y = 0; y < 8; y++) { | |
1219 | int x; | |
1220 | for (x = 0; x < 8; x++) | |
1221 | dc += dest_y[x + (n & 1) * 8 + | |
1222 | (y + (n >> 1) * 8) * linesize[0]]; | |
1223 | } | |
1224 | dc_ptr[(n & 1) + (n >> 1) * s->b8_stride] = (dc + 4) >> 3; | |
1225 | } | |
1226 | ||
1227 | dcu = dcv = 0; | |
1228 | for (y = 0; y < 8; y++) { | |
1229 | int x; | |
1230 | for (x = 0; x < 8; x++) { | |
1231 | dcu += dest_cb[x + y * linesize[1]]; | |
1232 | dcv += dest_cr[x + y * linesize[2]]; | |
1233 | } | |
1234 | } | |
1235 | s->dc_val[1][mb_x + mb_y * s->mb_stride] = (dcu + 4) >> 3; | |
1236 | s->dc_val[2][mb_x + mb_y * s->mb_stride] = (dcv + 4) >> 3; | |
1237 | } | |
1238 | } | |
1239 | #if 1 | |
1240 | /* guess DC for damaged blocks */ | |
1241 | guess_dc(s, s->dc_val[0], s->mb_width*2, s->mb_height*2, s->b8_stride, 1); | |
1242 | guess_dc(s, s->dc_val[1], s->mb_width , s->mb_height , s->mb_stride, 0); | |
1243 | guess_dc(s, s->dc_val[2], s->mb_width , s->mb_height , s->mb_stride, 0); | |
1244 | #endif | |
1245 | ||
1246 | /* filter luma DC */ | |
1247 | filter181(s->dc_val[0], s->mb_width * 2, s->mb_height * 2, s->b8_stride); | |
1248 | ||
1249 | #if 1 | |
1250 | /* render DC only intra */ | |
1251 | for (mb_y = 0; mb_y < s->mb_height; mb_y++) { | |
1252 | for (mb_x = 0; mb_x < s->mb_width; mb_x++) { | |
1253 | uint8_t *dest_y, *dest_cb, *dest_cr; | |
1254 | const int mb_xy = mb_x + mb_y * s->mb_stride; | |
1255 | const int mb_type = s->cur_pic.mb_type[mb_xy]; | |
1256 | ||
1257 | int error = s->error_status_table[mb_xy]; | |
1258 | ||
1259 | if (IS_INTER(mb_type)) | |
1260 | continue; | |
1261 | if (!(error & ER_AC_ERROR)) | |
1262 | continue; // undamaged | |
1263 | ||
1264 | dest_y = s->cur_pic.f->data[0] + mb_x * 16 + mb_y * 16 * linesize[0]; | |
1265 | dest_cb = s->cur_pic.f->data[1] + mb_x * 8 + mb_y * 8 * linesize[1]; | |
1266 | dest_cr = s->cur_pic.f->data[2] + mb_x * 8 + mb_y * 8 * linesize[2]; | |
1267 | ||
1268 | put_dc(s, dest_y, dest_cb, dest_cr, mb_x, mb_y); | |
1269 | } | |
1270 | } | |
1271 | #endif | |
1272 | ||
1273 | if (s->avctx->error_concealment & FF_EC_DEBLOCK) { | |
1274 | /* filter horizontal block boundaries */ | |
1275 | h_block_filter(s, s->cur_pic.f->data[0], s->mb_width * 2, | |
1276 | s->mb_height * 2, linesize[0], 1); | |
1277 | h_block_filter(s, s->cur_pic.f->data[1], s->mb_width, | |
1278 | s->mb_height, linesize[1], 0); | |
1279 | h_block_filter(s, s->cur_pic.f->data[2], s->mb_width, | |
1280 | s->mb_height, linesize[2], 0); | |
1281 | ||
1282 | /* filter vertical block boundaries */ | |
1283 | v_block_filter(s, s->cur_pic.f->data[0], s->mb_width * 2, | |
1284 | s->mb_height * 2, linesize[0], 1); | |
1285 | v_block_filter(s, s->cur_pic.f->data[1], s->mb_width, | |
1286 | s->mb_height, linesize[1], 0); | |
1287 | v_block_filter(s, s->cur_pic.f->data[2], s->mb_width, | |
1288 | s->mb_height, linesize[2], 0); | |
1289 | } | |
1290 | ||
1291 | ec_clean: | |
1292 | /* clean a few tables */ | |
1293 | for (i = 0; i < s->mb_num; i++) { | |
1294 | const int mb_xy = s->mb_index2xy[i]; | |
1295 | int error = s->error_status_table[mb_xy]; | |
1296 | ||
1297 | if (s->cur_pic.f->pict_type != AV_PICTURE_TYPE_B && | |
1298 | (error & (ER_DC_ERROR | ER_MV_ERROR | ER_AC_ERROR))) { | |
1299 | s->mbskip_table[mb_xy] = 0; | |
1300 | } | |
1301 | s->mbintra_table[mb_xy] = 1; | |
1302 | } | |
1303 | ||
1304 | for (i = 0; i < 2; i++) { | |
1305 | av_buffer_unref(&s->ref_index_buf[i]); | |
1306 | av_buffer_unref(&s->motion_val_buf[i]); | |
1307 | s->cur_pic.ref_index[i] = NULL; | |
1308 | s->cur_pic.motion_val[i] = NULL; | |
1309 | } | |
1310 | ||
1311 | memset(&s->cur_pic, 0, sizeof(ERPicture)); | |
1312 | memset(&s->last_pic, 0, sizeof(ERPicture)); | |
1313 | memset(&s->next_pic, 0, sizeof(ERPicture)); | |
1314 | } |