FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavfilter/formats.c
Date: 2025-04-25 22:50:00
Exec Total Coverage
Lines: 328 399 82.2%
Functions: 62 72 86.1%
Branches: 435 594 73.2%
Line Branch Exec Source
1 /*
2 * Filter layer - format negotiation
3 * Copyright (c) 2007 Bobby Bingham
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "libavutil/avassert.h"
23 #include "libavutil/channel_layout.h"
24 #include "libavutil/common.h"
25 #include "libavutil/mem.h"
26 #include "libavutil/pixdesc.h"
27 #include "avfilter.h"
28 #include "filters.h"
29 #include "formats.h"
30
31 /**
32 * Add all refs from a to ret and destroy a.
33 */
34 #define MERGE_REF(ret, a, fmts, type, fail_statement) \
35 do { \
36 type ***tmp; \
37 int i; \
38 \
39 if (!(tmp = av_realloc_array(ret->refs, ret->refcount + a->refcount, \
40 sizeof(*tmp)))) \
41 { fail_statement } \
42 ret->refs = tmp; \
43 \
44 for (i = 0; i < a->refcount; i ++) { \
45 ret->refs[ret->refcount] = a->refs[i]; \
46 *ret->refs[ret->refcount++] = ret; \
47 } \
48 \
49 av_freep(&a->refs); \
50 av_freep(&a->fmts); \
51 av_freep(&a); \
52 } while (0)
53
54 /**
55 * Add all formats common to a and b to a, add b's refs to a and destroy b.
56 * If check is set, nothing is modified and it is only checked whether
57 * the formats are compatible.
58 * If empty_allowed is set and one of a,b->nb is zero, the lists are
59 * merged; otherwise, 0 (for nonmergeability) is returned.
60 */
61 #define MERGE_FORMATS(a, b, fmts, nb, type, check, empty_allowed) \
62 do { \
63 int i, j, k = 0, skip = 0; \
64 \
65 if (empty_allowed) { \
66 if (!a->nb || !b->nb) { \
67 if (check) \
68 return 1; \
69 if (!a->nb) \
70 FFSWAP(type *, a, b); \
71 skip = 1; \
72 } \
73 } \
74 if (!skip) { \
75 for (i = 0; i < a->nb; i++) \
76 for (j = 0; j < b->nb; j++) \
77 if (a->fmts[i] == b->fmts[j]) { \
78 if (check) \
79 return 1; \
80 a->fmts[k++] = a->fmts[i]; \
81 break; \
82 } \
83 /* Check that there was at least one common format. \
84 * Notice that both a and b are unchanged if not. */ \
85 if (!k) \
86 return 0; \
87 av_assert2(!check); \
88 a->nb = k; \
89 } \
90 \
91 MERGE_REF(a, b, fmts, type, return AVERROR(ENOMEM);); \
92 } while (0)
93
94 70159 static int merge_formats_internal(AVFilterFormats *a, AVFilterFormats *b,
95 enum AVMediaType type, int check)
96 {
97 int i, j;
98 70159 int alpha1=0, alpha2=0;
99 70159 int chroma1=0, chroma2=0;
100
101 av_assert2(check || (a->refcount && b->refcount));
102
103
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 70159 if (a == b)
104 ✗ return 1;
105
106 /* Do not lose chroma or alpha in merging.
107 It happens if both lists have formats with chroma (resp. alpha), but
108 the only formats in common do not have it (e.g. YUV+gray vs.
109 RGB+gray): in that case, the merging would select the gray format,
110 possibly causing a lossy conversion elsewhere in the graph.
111 To avoid that, pretend that there are no common formats to force the
112 insertion of a conversion filter. */
113
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 70159 if (type == AVMEDIA_TYPE_VIDEO)
114
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 3175034 for (i = 0; i < a->nb_formats; i++) {
115 3116024 const AVPixFmtDescriptor *const adesc = av_pix_fmt_desc_get(a->formats[i]);
116
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 177220281 for (j = 0; j < b->nb_formats; j++) {
117 174104257 const AVPixFmtDescriptor *bdesc = av_pix_fmt_desc_get(b->formats[j]);
118 174104257 alpha2 |= adesc->flags & bdesc->flags & AV_PIX_FMT_FLAG_ALPHA;
119
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 174104257 chroma2|= adesc->nb_components > 1 && bdesc->nb_components > 1;
120
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 174104257 if (a->formats[i] == b->formats[j]) {
121 690938 alpha1 |= adesc->flags & AV_PIX_FMT_FLAG_ALPHA;
122 690938 chroma1|= adesc->nb_components > 1;
123 }
124 }
125 }
126
127 // If chroma or alpha can be lost through merging then do not merge
128
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 70159 if (alpha2 > alpha1 || chroma2 > chroma1)
129 574 return 0;
130
131
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 46558324 MERGE_FORMATS(a, b, formats, nb_formats, AVFilterFormats, check, 0);
132
133 35711 return 1;
134 }
135
136
137 /**
138 * Check the formats lists for compatibility for merging without actually
139 * merging.
140 *
141 * @return 1 if they are compatible, 0 if not.
142 */
143 29194 static int can_merge_pix_fmts(const void *a, const void *b)
144 {
145 29194 return merge_formats_internal((AVFilterFormats *)a,
146 (AVFilterFormats *)b, AVMEDIA_TYPE_VIDEO, 1);
147 }
148
149 /**
150 * Merge the formats lists if they are compatible and update all the
151 * references of a and b to point to the combined list and free the old
152 * lists as needed. The combined list usually contains the intersection of
153 * the lists of a and b.
154 *
155 * Both a and b must have owners (i.e. refcount > 0) for these functions.
156 *
157 * @return 1 if merging succeeded, 0 if a and b are incompatible
158 * and negative AVERROR code on failure.
159 * a and b are unmodified if 0 is returned.
160 */
161 29816 static int merge_pix_fmts(void *a, void *b)
162 {
163 29816 return merge_formats_internal(a, b, AVMEDIA_TYPE_VIDEO, 0);
164 }
165
166 /**
167 * See can_merge_pix_fmts().
168 */
169 5254 static int can_merge_sample_fmts(const void *a, const void *b)
170 {
171 5254 return merge_formats_internal((AVFilterFormats *)a,
172 (AVFilterFormats *)b, AVMEDIA_TYPE_AUDIO, 1);
173 }
174
175 /**
176 * See merge_pix_fmts().
177 */
178 5895 static int merge_sample_fmts(void *a, void *b)
179 {
180 5895 return merge_formats_internal(a, b, AVMEDIA_TYPE_AUDIO, 0);
181 }
182
183 11153 static int merge_samplerates_internal(AVFilterFormats *a,
184 AVFilterFormats *b, int check)
185 {
186 av_assert2(check || (a->refcount && b->refcount));
187
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 11153 if (a == b) return 1;
188
189
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 37610 MERGE_FORMATS(a, b, formats, nb_formats, AVFilterFormats, check, 1);
190 5895 return 1;
191 }
192
193 /**
194 * See can_merge_pix_fmts().
195 */
196 5258 static int can_merge_samplerates(const void *a, const void *b)
197 {
198 5258 return merge_samplerates_internal((AVFilterFormats *)a, (AVFilterFormats *)b, 1);
199 }
200
201 /**
202 * See merge_pix_fmts().
203 */
204 5895 static int merge_samplerates(void *a, void *b)
205 {
206 5895 return merge_samplerates_internal(a, b, 0);
207 }
208
209 /**
210 * See merge_pix_fmts().
211 */
212 6589 static int merge_channel_layouts_internal(AVFilterChannelLayouts *a,
213 AVFilterChannelLayouts *b, int check)
214 {
215 6589 AVChannelLayout *channel_layouts = NULL;
216 6589 unsigned a_all = a->all_layouts + a->all_counts;
217 6589 unsigned b_all = b->all_layouts + b->all_counts;
218 6589 int ret_max, ret_nb = 0, i, j, round;
219
220 av_assert2(a->refcount && b->refcount);
221
222
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 6589 if (a == b) return 1;
223
224 /* Put the most generic set in a, to avoid doing everything twice */
225
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 6589 if (a_all < b_all) {
226 3318 FFSWAP(AVFilterChannelLayouts *, a, b);
227 3318 FFSWAP(unsigned, a_all, b_all);
228 }
229
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 6589 if (a_all) {
230
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 6410 if (a_all == 1 && !b_all) {
231 /* keep only known layouts in b; works also for b_all = 1 */
232
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 140 for (i = j = 0; i < b->nb_channel_layouts; i++)
233
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 70 if (KNOWN(&b->channel_layouts[i]) && i != j++) {
234 ✗ if (check)
235 ✗ return 1;
236 ✗ av_channel_layout_copy(&b->channel_layouts[j], &b->channel_layouts[i]);
237 }
238 /* Not optimal: the unknown layouts of b may become known after
239 another merge. */
240
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 70 if (!j)
241 ✗ return 0;
242 70 b->nb_channel_layouts = j;
243 }
244
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 17472 MERGE_REF(b, a, channel_layouts, AVFilterChannelLayouts, return AVERROR(ENOMEM););
245 6410 return 1;
246 }
247
248 179 ret_max = a->nb_channel_layouts + b->nb_channel_layouts;
249
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 179 if (!check && !(channel_layouts = av_calloc(ret_max, sizeof(*channel_layouts))))
250 ✗ return AVERROR(ENOMEM);
251
252 /* a[known] intersect b[known] */
253
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 251 for (i = 0; i < a->nb_channel_layouts; i++) {
254
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 179 if (!KNOWN(&a->channel_layouts[i]))
255 1 continue;
256
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 281 for (j = 0; j < b->nb_channel_layouts; j++) {
257
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 274 if (!av_channel_layout_compare(&a->channel_layouts[i], &b->channel_layouts[j])) {
258
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 171 if (check)
259 107 return 1;
260 64 av_channel_layout_copy(&channel_layouts[ret_nb++], &a->channel_layouts[i]);
261 64 av_channel_layout_uninit(&a->channel_layouts[i]);
262 64 av_channel_layout_uninit(&b->channel_layouts[j]);
263 64 break;
264 }
265 }
266 }
267 /* 1st round: a[known] intersect b[generic]
268 2nd round: a[generic] intersect b[known] */
269
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 215 for (round = 0; round < 2; round++) {
270
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 373 for (i = 0; i < a->nb_channel_layouts; i++) {
271 230 AVChannelLayout *fmt = &a->channel_layouts[i], bfmt = { 0 };
272
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 230 if (!av_channel_layout_check(fmt) || !KNOWN(fmt))
273 129 continue;
274 101 bfmt = FF_COUNT2LAYOUT(fmt->nb_channels);
275
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 201 for (j = 0; j < b->nb_channel_layouts; j++)
276
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 101 if (!av_channel_layout_compare(&b->channel_layouts[j], &bfmt)) {
277
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 1 if (check)
278 1 return 1;
279 ✗ av_channel_layout_copy(&channel_layouts[ret_nb++], fmt);
280 }
281 }
282 /* 1st round: swap to prepare 2nd round; 2nd round: put it back */
283 143 FFSWAP(AVFilterChannelLayouts *, a, b);
284 }
285 /* a[generic] intersect b[generic] */
286
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 142 for (i = 0; i < a->nb_channel_layouts; i++) {
287
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 71 if (KNOWN(&a->channel_layouts[i]))
288 71 continue;
289 ✗ for (j = 0; j < b->nb_channel_layouts; j++)
290 ✗ if (!av_channel_layout_compare(&a->channel_layouts[i], &b->channel_layouts[j])) {
291 ✗ if (check)
292 ✗ return 1;
293 ✗ av_channel_layout_copy(&channel_layouts[ret_nb++], &a->channel_layouts[i]);
294 }
295 }
296
297
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 71 if (!ret_nb) {
298 7 av_free(channel_layouts);
299 7 return 0;
300 }
301
302
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 64 if (a->refcount > b->refcount)
303 12 FFSWAP(AVFilterChannelLayouts *, a, b);
304
305
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 194 MERGE_REF(b, a, channel_layouts, AVFilterChannelLayouts,
306 { av_free(channel_layouts); return AVERROR(ENOMEM); });
307 64 av_freep(&b->channel_layouts);
308 64 b->channel_layouts = channel_layouts;
309 64 b->nb_channel_layouts = ret_nb;
310 64 return 1;
311 }
312
313 5265 static int can_merge_channel_layouts(const void *a, const void *b)
314 {
315 5265 return merge_channel_layouts_internal((AVFilterChannelLayouts *)a,
316 (AVFilterChannelLayouts *)b, 1);
317 }
318
319 1324 static int merge_channel_layouts(void *a, void *b)
320 {
321 1324 return merge_channel_layouts_internal(a, b, 0);
322 }
323
324 116770 static int merge_generic_internal(AVFilterFormats *a,
325 AVFilterFormats *b, int check)
326 {
327 av_assert2(check || (a->refcount && b->refcount));
328
329
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 116770 if (a == b)
330 ✗ return 1;
331
332
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 2207686 MERGE_FORMATS(a, b, formats, nb_formats, AVFilterFormats, check, 0);
333
334 59628 return 1;
335 }
336
337 57142 static int can_merge_generic(const void *a, const void *b)
338 {
339 57142 return merge_generic_internal((AVFilterFormats *)a,
340 (AVFilterFormats *)b, 1);
341 }
342
343 59628 static int merge_generic(void *a, void *b)
344 {
345 59628 return merge_generic_internal(a, b, 0);
346 }
347
348 static const AVFilterFormatsMerger mergers_video[] = {
349 {
350 .offset = offsetof(AVFilterFormatsConfig, formats),
351 .merge = merge_pix_fmts,
352 .can_merge = can_merge_pix_fmts,
353 },
354 {
355 .offset = offsetof(AVFilterFormatsConfig, color_spaces),
356 .merge = merge_generic,
357 .can_merge = can_merge_generic,
358 },
359 {
360 .offset = offsetof(AVFilterFormatsConfig, color_ranges),
361 .merge = merge_generic,
362 .can_merge = can_merge_generic,
363 },
364 };
365
366 static const AVFilterFormatsMerger mergers_audio[] = {
367 {
368 .offset = offsetof(AVFilterFormatsConfig, channel_layouts),
369 .merge = merge_channel_layouts,
370 .can_merge = can_merge_channel_layouts,
371 },
372 {
373 .offset = offsetof(AVFilterFormatsConfig, samplerates),
374 .merge = merge_samplerates,
375 .can_merge = can_merge_samplerates,
376 },
377 {
378 .offset = offsetof(AVFilterFormatsConfig, formats),
379 .merge = merge_sample_fmts,
380 .can_merge = can_merge_sample_fmts,
381 },
382 };
383
384 static const AVFilterNegotiation negotiate_video = {
385 .nb_mergers = FF_ARRAY_ELEMS(mergers_video),
386 .mergers = mergers_video,
387 .conversion_filter = "scale",
388 .conversion_opts_offset = offsetof(AVFilterGraph, scale_sws_opts),
389 };
390
391 static const AVFilterNegotiation negotiate_audio = {
392 .nb_mergers = FF_ARRAY_ELEMS(mergers_audio),
393 .mergers = mergers_audio,
394 .conversion_filter = "aresample",
395 .conversion_opts_offset = offsetof(AVFilterGraph, aresample_swr_opts),
396 };
397
398 35762 const AVFilterNegotiation *ff_filter_get_negotiation(AVFilterLink *link)
399 {
400
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 35762 switch (link->type) {
401 29863 case AVMEDIA_TYPE_VIDEO: return &negotiate_video;
402 5899 case AVMEDIA_TYPE_AUDIO: return &negotiate_audio;
403 ✗ default: return NULL;
404 }
405 }
406
407 174 int ff_fmt_is_in(int fmt, const int *fmts)
408 {
409 const int *p;
410
411
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 2192 for (p = fmts; *p != -1; p++) {
412
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 2105 if (fmt == *p)
413 87 return 1;
414 }
415 87 return 0;
416 }
417
418 #define MAKE_FORMAT_LIST(type, field, count_field) \
419 type *formats; \
420 int count = 0; \
421 if (fmts) \
422 for (count = 0; fmts[count] != -1; count++) \
423 ; \
424 formats = av_mallocz(sizeof(*formats)); \
425 if (!formats) \
426 return NULL; \
427 formats->count_field = count; \
428 if (count) { \
429 formats->field = av_malloc_array(count, sizeof(*formats->field)); \
430 if (!formats->field) { \
431 av_freep(&formats); \
432 return NULL; \
433 } \
434 }
435
436 4321 AVFilterFormats *ff_make_format_list(const int *fmts)
437 {
438
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 50766 MAKE_FORMAT_LIST(AVFilterFormats, formats, nb_formats);
439
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 50766 while (count--)
440 46445 formats->formats[count] = fmts[count];
441
442 4321 return formats;
443 }
444
445 211 AVFilterChannelLayouts *ff_make_channel_layout_list(const AVChannelLayout *fmts)
446 {
447 AVFilterChannelLayouts *ch_layouts;
448 211 int count = 0;
449
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 211 if (fmts)
450
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 731 for (count = 0; fmts[count].nb_channels; count++)
451 ;
452 211 ch_layouts = av_mallocz(sizeof(*ch_layouts));
453
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 211 if (!ch_layouts)
454 ✗ return NULL;
455 211 ch_layouts->nb_channel_layouts = count;
456
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 211 if (count) {
457 422 ch_layouts->channel_layouts =
458 211 av_calloc(count, sizeof(*ch_layouts->channel_layouts));
459
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 211 if (!ch_layouts->channel_layouts) {
460 ✗ av_freep(&ch_layouts);
461 ✗ return NULL;
462 }
463
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 731 for (int i = 0; i < count; i++) {
464 520 int ret = av_channel_layout_copy(&ch_layouts->channel_layouts[i], &fmts[i]);
465
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 520 if (ret < 0)
466 ✗ goto fail;
467 }
468 }
469
470 211 return ch_layouts;
471
472 ✗ fail:
473 ✗ for (int i = 0; i < count; i++)
474 ✗ av_channel_layout_uninit(&ch_layouts->channel_layouts[i]);
475 ✗ av_free(ch_layouts->channel_layouts);
476 ✗ av_freep(&ch_layouts);
477
478 ✗ return NULL;
479 }
480
481 #define ADD_FORMAT(f, fmt, unref_fn, type, list, nb) \
482 do { \
483 type *fmts; \
484 \
485 if (!(*f) && !(*f = av_mallocz(sizeof(**f)))) { \
486 return AVERROR(ENOMEM); \
487 } \
488 \
489 fmts = av_realloc_array((*f)->list, (*f)->nb + 1, \
490 sizeof(*(*f)->list)); \
491 if (!fmts) { \
492 unref_fn(f); \
493 return AVERROR(ENOMEM); \
494 } \
495 \
496 (*f)->list = fmts; \
497 ASSIGN_FMT(f, fmt, list, nb); \
498 } while (0)
499
500 #define ASSIGN_FMT(f, fmt, list, nb) \
501 do { \
502 (*f)->list[(*f)->nb++] = fmt; \
503 } while (0)
504
505 4111576 int ff_add_format(AVFilterFormats **avff, int64_t fmt)
506 {
507
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 4111576 ADD_FORMAT(avff, fmt, ff_formats_unref, int, formats, nb_formats);
508 4111576 return 0;
509 }
510
511 #undef ASSIGN_FMT
512 #define ASSIGN_FMT(f, fmt, list, nb) \
513 do { \
514 int ret; \
515 memset((*f)->list + (*f)->nb, 0, sizeof(*(*f)->list)); \
516 ret = av_channel_layout_copy(&(*f)->list[(*f)->nb], fmt); \
517 if (ret < 0) \
518 return ret; \
519 (*f)->nb++; \
520 } while (0)
521
522 2259 int ff_add_channel_layout(AVFilterChannelLayouts **l,
523 const AVChannelLayout *channel_layout)
524 {
525 av_assert1(!(*l && (*l)->all_layouts));
526
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 2259 ADD_FORMAT(l, channel_layout, ff_channel_layouts_unref, AVChannelLayout, channel_layouts, nb_channel_layouts);
527 2259 return 0;
528 }
529
530 58 AVFilterFormats *ff_make_formats_list_singleton(int fmt)
531 {
532 58 int fmts[2] = { fmt, -1 };
533 58 return ff_make_format_list(fmts);
534 }
535
536 45212 AVFilterFormats *ff_all_formats(enum AVMediaType type)
537 {
538 45212 AVFilterFormats *ret = NULL;
539
540
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 45212 if (type == AVMEDIA_TYPE_VIDEO) {
541 35101 return ff_formats_pixdesc_filter(0, 0);
542
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 10111 } else if (type == AVMEDIA_TYPE_AUDIO) {
543 10111 enum AVSampleFormat fmt = 0;
544
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 131443 while (av_get_sample_fmt_name(fmt)) {
545
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 121332 if (ff_add_format(&ret, fmt) < 0)
546 ✗ return NULL;
547 121332 fmt++;
548 }
549 }
550
551 10111 return ret;
552 }
553
554 35720 AVFilterFormats *ff_formats_pixdesc_filter(unsigned want, unsigned rej)
555 {
556 unsigned nb_formats, fmt, flags;
557 35720 AVFilterFormats *formats = NULL;
558
559 while (1) {
560 71440 nb_formats = 0;
561 18502960 for (fmt = 0;; fmt++) {
562 18502960 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
563
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 18502960 if (!desc)
564 71440 break;
565 18431520 flags = desc->flags;
566
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 18431520 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL) &&
567
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 17359920 !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
568
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 8429920 (desc->log2_chroma_w || desc->log2_chroma_h))
569 714400 flags |= FF_PIX_FMT_FLAG_SW_FLAT_SUB;
570
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 18431520 if ((flags & (want | rej)) != want)
571 19740 continue;
572
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 18411780 if (formats)
573 9205890 formats->formats[nb_formats] = fmt;
574 18411780 nb_formats++;
575 }
576
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 71440 if (formats) {
577
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 35720 av_assert0(formats->nb_formats == nb_formats);
578 35720 return formats;
579 }
580 35720 formats = av_mallocz(sizeof(*formats));
581
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 35720 if (!formats)
582 ✗ return NULL;
583 35720 formats->nb_formats = nb_formats;
584
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 35720 if (nb_formats) {
585 35720 formats->formats = av_malloc_array(nb_formats, sizeof(*formats->formats));
586
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 35720 if (!formats->formats) {
587 ✗ av_freep(&formats);
588 ✗ return NULL;
589 }
590 }
591 }
592 }
593
594 61 AVFilterFormats *ff_planar_sample_fmts(void)
595 {
596 61 AVFilterFormats *ret = NULL;
597 int fmt;
598
599
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 793 for (fmt = 0; av_get_bytes_per_sample(fmt)>0; fmt++)
600
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 732 if (av_sample_fmt_is_planar(fmt))
601
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 366 if (ff_add_format(&ret, fmt) < 0)
602 ✗ return NULL;
603
604 61 return ret;
605 }
606
607 44604 AVFilterFormats *ff_all_samplerates(void)
608 {
609 44604 AVFilterFormats *ret = av_mallocz(sizeof(*ret));
610 44604 return ret;
611 }
612
613 70 AVFilterChannelLayouts *ff_all_channel_layouts(void)
614 {
615 70 AVFilterChannelLayouts *ret = av_mallocz(sizeof(*ret));
616
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 70 if (!ret)
617 ✗ return NULL;
618 70 ret->all_layouts = 1;
619 70 return ret;
620 }
621
622 45264 AVFilterChannelLayouts *ff_all_channel_counts(void)
623 {
624 45264 AVFilterChannelLayouts *ret = av_mallocz(sizeof(*ret));
625
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 45264 if (!ret)
626 ✗ return NULL;
627 45264 ret->all_layouts = ret->all_counts = 1;
628 45264 return ret;
629 }
630
631 56482 AVFilterFormats *ff_all_color_spaces(void)
632 {
633 56482 AVFilterFormats *ret = NULL;
634
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 56482 if (ff_add_format(&ret, AVCOL_SPC_UNSPECIFIED) < 0)
635 ✗ return NULL;
636
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 1073158 for (int csp = 0; csp < AVCOL_SPC_NB; csp++) {
637
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 1016676 if (csp == AVCOL_SPC_RESERVED ||
638 csp == AVCOL_SPC_UNSPECIFIED)
639 112964 continue;
640
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 903712 if (ff_add_format(&ret, csp) < 0)
641 ✗ return NULL;
642 }
643
644 56482 return ret;
645 }
646
647 56482 AVFilterFormats *ff_all_color_ranges(void)
648 {
649 56482 AVFilterFormats *ret = NULL;
650
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 225928 for (int range = 0; range < AVCOL_RANGE_NB; range++) {
651
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 169446 if (ff_add_format(&ret, range) < 0)
652 ✗ return NULL;
653 }
654
655 56482 return ret;
656 }
657
658 #define FORMATS_REF(f, ref, unref_fn) \
659 void *tmp; \
660 \
661 if (!f) \
662 return AVERROR(ENOMEM); \
663 \
664 tmp = av_realloc_array(f->refs, sizeof(*f->refs), f->refcount + 1); \
665 if (!tmp) { \
666 unref_fn(&f); \
667 return AVERROR(ENOMEM); \
668 } \
669 f->refs = tmp; \
670 f->refs[f->refcount++] = ref; \
671 *ref = f; \
672 return 0
673
674 11790 int ff_channel_layouts_ref(AVFilterChannelLayouts *f, AVFilterChannelLayouts **ref)
675 {
676
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 11790 FORMATS_REF(f, ref, ff_channel_layouts_unref);
677 }
678
679 220179 int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
680 {
681
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 220179 FORMATS_REF(f, ref, ff_formats_unref);
682 }
683
684 #define FIND_REF_INDEX(ref, idx) \
685 do { \
686 int i; \
687 for (i = 0; i < (*ref)->refcount; i ++) \
688 if((*ref)->refs[i] == ref) { \
689 idx = i; \
690 break; \
691 } \
692 } while (0)
693
694 #define FORMATS_UNREF(ref, list) \
695 do { \
696 int idx = -1; \
697 \
698 if (!*ref) \
699 return; \
700 \
701 FIND_REF_INDEX(ref, idx); \
702 \
703 if (idx >= 0) { \
704 memmove((*ref)->refs + idx, (*ref)->refs + idx + 1, \
705 sizeof(*(*ref)->refs) * ((*ref)->refcount - idx - 1)); \
706 --(*ref)->refcount; \
707 } \
708 if (!(*ref)->refcount) { \
709 FREE_LIST(ref, list); \
710 av_free((*ref)->list); \
711 av_free((*ref)->refs); \
712 av_free(*ref); \
713 } \
714 *ref = NULL; \
715 } while (0)
716
717 #define FREE_LIST(ref, list) do { } while(0)
718 803016 void ff_formats_unref(AVFilterFormats **ref)
719 {
720
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 933468 FORMATS_UNREF(ref, formats);
721 }
722
723 #undef FREE_LIST
724 #define FREE_LIST(ref, list) \
725 do { \
726 for (int i = 0; i < (*ref)->nb_channel_layouts; i++) \
727 av_channel_layout_uninit(&(*ref)->list[i]); \
728 } while(0)
729
730 201076 void ff_channel_layouts_unref(AVFilterChannelLayouts **ref)
731 {
732
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 212325 FORMATS_UNREF(ref, channel_layouts);
733 }
734
735 #define FORMATS_CHANGEREF(oldref, newref) \
736 do { \
737 int idx = -1; \
738 \
739 FIND_REF_INDEX(oldref, idx); \
740 \
741 if (idx >= 0) { \
742 (*oldref)->refs[idx] = newref; \
743 *newref = *oldref; \
744 *oldref = NULL; \
745 } \
746 } while (0)
747
748 630 void ff_channel_layouts_changeref(AVFilterChannelLayouts **oldref,
749 AVFilterChannelLayouts **newref)
750 {
751
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 2267 FORMATS_CHANGEREF(oldref, newref);
752 630 }
753
754 3126 void ff_formats_changeref(AVFilterFormats **oldref, AVFilterFormats **newref)
755 {
756
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 11135 FORMATS_CHANGEREF(oldref, newref);
757 3126 }
758
759 #define SET_COMMON_FORMATS(ctx, fmts, media_type, ref_fn, unref_fn) \
760 int i; \
761 \
762 if (!fmts) \
763 return AVERROR(ENOMEM); \
764 \
765 for (i = 0; i < ctx->nb_inputs; i++) { \
766 AVFilterLink *const link = ctx->inputs[i]; \
767 if (link && !link->outcfg.fmts && \
768 (media_type == AVMEDIA_TYPE_UNKNOWN || link->type == media_type)) { \
769 int ret = ref_fn(fmts, &ctx->inputs[i]->outcfg.fmts); \
770 if (ret < 0) { \
771 return ret; \
772 } \
773 } \
774 } \
775 for (i = 0; i < ctx->nb_outputs; i++) { \
776 AVFilterLink *const link = ctx->outputs[i]; \
777 if (link && !link->incfg.fmts && \
778 (media_type == AVMEDIA_TYPE_UNKNOWN || link->type == media_type)) { \
779 int ret = ref_fn(fmts, &ctx->outputs[i]->incfg.fmts); \
780 if (ret < 0) { \
781 return ret; \
782 } \
783 } \
784 } \
785 \
786 if (!fmts->refcount) \
787 unref_fn(&fmts); \
788 \
789 return 0;
790
791 42271 int ff_set_common_channel_layouts(AVFilterContext *ctx,
792 AVFilterChannelLayouts *channel_layouts)
793 {
794
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 111922 SET_COMMON_FORMATS(ctx, channel_layouts, AVMEDIA_TYPE_AUDIO,
795 ff_channel_layouts_ref, ff_channel_layouts_unref);
796 }
797
798 ✗ int ff_set_common_channel_layouts_from_list(AVFilterContext *ctx,
799 const AVChannelLayout *fmts)
800 {
801 ✗ return ff_set_common_channel_layouts(ctx, ff_make_channel_layout_list(fmts));
802 }
803
804 42271 int ff_set_common_all_channel_counts(AVFilterContext *ctx)
805 {
806 42271 return ff_set_common_channel_layouts(ctx, ff_all_channel_counts());
807 }
808
809 42272 int ff_set_common_samplerates(AVFilterContext *ctx,
810 AVFilterFormats *samplerates)
811 {
812
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 111926 SET_COMMON_FORMATS(ctx, samplerates, AVMEDIA_TYPE_AUDIO,
813 ff_formats_ref, ff_formats_unref);
814 }
815
816 ✗ int ff_set_common_samplerates_from_list(AVFilterContext *ctx,
817 const int *samplerates)
818 {
819 ✗ return ff_set_common_samplerates(ctx, ff_make_format_list(samplerates));
820 }
821
822 42272 int ff_set_common_all_samplerates(AVFilterContext *ctx)
823 {
824 42272 return ff_set_common_samplerates(ctx, ff_all_samplerates());
825 }
826
827 43670 int ff_set_common_color_spaces(AVFilterContext *ctx,
828 AVFilterFormats *color_spaces)
829 {
830
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 115046 SET_COMMON_FORMATS(ctx, color_spaces, AVMEDIA_TYPE_VIDEO,
831 ff_formats_ref, ff_formats_unref);
832 }
833
834 ✗ int ff_set_common_color_spaces_from_list(AVFilterContext *ctx,
835 const int *color_ranges)
836 {
837 ✗ return ff_set_common_color_spaces(ctx, ff_make_format_list(color_ranges));
838 }
839
840 43670 int ff_set_common_all_color_spaces(AVFilterContext *ctx)
841 {
842 43670 return ff_set_common_color_spaces(ctx, ff_all_color_spaces());
843 }
844
845 43670 int ff_set_common_color_ranges(AVFilterContext *ctx,
846 AVFilterFormats *color_ranges)
847 {
848
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 115046 SET_COMMON_FORMATS(ctx, color_ranges, AVMEDIA_TYPE_VIDEO,
849 ff_formats_ref, ff_formats_unref);
850 }
851
852 ✗ int ff_set_common_color_ranges_from_list(AVFilterContext *ctx,
853 const int *color_ranges)
854 {
855 ✗ return ff_set_common_color_ranges(ctx, ff_make_format_list(color_ranges));
856 }
857
858 43670 int ff_set_common_all_color_ranges(AVFilterContext *ctx)
859 {
860 43670 return ff_set_common_color_ranges(ctx, ff_all_color_ranges());
861 }
862
863 /**
864 * A helper for query_formats() which sets all links to the same list of
865 * formats. If there are no links hooked to this filter, the list of formats is
866 * freed.
867 */
868 43704 int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
869 {
870
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 115157 SET_COMMON_FORMATS(ctx, formats, AVMEDIA_TYPE_UNKNOWN,
871 ff_formats_ref, ff_formats_unref);
872 }
873
874 1 int ff_set_common_formats_from_list(AVFilterContext *ctx, const int *fmts)
875 {
876 1 return ff_set_common_formats(ctx, ff_make_format_list(fmts));
877 }
878
879 #define SET_COMMON_FORMATS2(ctx, cfg_in, cfg_out, fmts, media_type, \
880 ref_fn, unref_fn) \
881 if (!fmts) \
882 return AVERROR(ENOMEM); \
883 \
884 for (unsigned i = 0; i < ctx->nb_inputs; i++) { \
885 const AVFilterLink *const link = ctx->inputs[i]; \
886 if (!cfg_in[i]->fmts && \
887 (media_type == AVMEDIA_TYPE_UNKNOWN || \
888 link->type == media_type)) { \
889 int ret = ref_fn(fmts, &cfg_in[i]->fmts); \
890 if (ret < 0) { \
891 return ret; \
892 } \
893 } \
894 } \
895 for (unsigned i = 0; i < ctx->nb_outputs; i++) { \
896 const AVFilterLink *const link = ctx->outputs[i]; \
897 if (!cfg_out[i]->fmts && \
898 (media_type == AVMEDIA_TYPE_UNKNOWN || \
899 link->type == media_type)) { \
900 int ret = ref_fn(fmts, &cfg_out[i]->fmts); \
901 if (ret < 0) { \
902 return ret; \
903 } \
904 } \
905 } \
906 \
907 if (!fmts->refcount) \
908 unref_fn(&fmts); \
909 \
910 return 0;
911
912 1470 int ff_set_common_channel_layouts2(const AVFilterContext *ctx,
913 AVFilterFormatsConfig **cfg_in,
914 AVFilterFormatsConfig **cfg_out,
915 AVFilterChannelLayouts *channel_layouts)
916 {
917
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 3053 SET_COMMON_FORMATS2(ctx, cfg_in, cfg_out, channel_layouts, AVMEDIA_TYPE_AUDIO,
918 ff_channel_layouts_ref, ff_channel_layouts_unref);
919 }
920
921 208 int ff_set_common_channel_layouts_from_list2(const AVFilterContext *ctx,
922 AVFilterFormatsConfig **cfg_in,
923 AVFilterFormatsConfig **cfg_out,
924 const AVChannelLayout *fmts)
925 {
926 208 return ff_set_common_channel_layouts2(ctx, cfg_in, cfg_out, ff_make_channel_layout_list(fmts));
927 }
928
929 ✗ int ff_set_common_all_channel_counts2(const AVFilterContext *ctx,
930 AVFilterFormatsConfig **cfg_in,
931 AVFilterFormatsConfig **cfg_out)
932 {
933 ✗ return ff_set_common_channel_layouts2(ctx, cfg_in, cfg_out, ff_all_channel_counts());
934 }
935
936 1442 int ff_set_common_samplerates2(const AVFilterContext *ctx,
937 AVFilterFormatsConfig **cfg_in,
938 AVFilterFormatsConfig **cfg_out,
939 AVFilterFormats *samplerates)
940 {
941
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 2969 SET_COMMON_FORMATS2(ctx, cfg_in, cfg_out, samplerates, AVMEDIA_TYPE_AUDIO,
942 ff_formats_ref, ff_formats_unref);
943 }
944
945 180 int ff_set_common_samplerates_from_list2(const AVFilterContext *ctx,
946 AVFilterFormatsConfig **cfg_in,
947 AVFilterFormatsConfig **cfg_out,
948 const int *samplerates)
949 {
950 180 return ff_set_common_samplerates2(ctx, cfg_in, cfg_out, ff_make_format_list(samplerates));
951 }
952
953 ✗ int ff_set_common_all_samplerates2(const AVFilterContext *ctx,
954 AVFilterFormatsConfig **cfg_in,
955 AVFilterFormatsConfig **cfg_out)
956 {
957 ✗ return ff_set_common_samplerates2(ctx, cfg_in, cfg_out, ff_all_samplerates());
958 }
959
960 4924 int ff_set_common_color_spaces2(const AVFilterContext *ctx,
961 AVFilterFormatsConfig **cfg_in,
962 AVFilterFormatsConfig **cfg_out,
963 AVFilterFormats *color_spaces)
964 {
965
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 9868 SET_COMMON_FORMATS2(ctx, cfg_in, cfg_out, color_spaces, AVMEDIA_TYPE_VIDEO,
966 ff_formats_ref, ff_formats_unref);
967 }
968
969 ✗ int ff_set_common_color_spaces_from_list2(const AVFilterContext *ctx,
970 AVFilterFormatsConfig **cfg_in,
971 AVFilterFormatsConfig **cfg_out,
972 const int *color_ranges)
973 {
974 ✗ return ff_set_common_color_spaces2(ctx, cfg_in, cfg_out, ff_make_format_list(color_ranges));
975 }
976
977 ✗ int ff_set_common_all_color_spaces2(const AVFilterContext *ctx,
978 AVFilterFormatsConfig **cfg_in,
979 AVFilterFormatsConfig **cfg_out)
980 {
981 ✗ return ff_set_common_color_spaces2(ctx, cfg_in, cfg_out, ff_all_color_spaces());
982 }
983
984 7017 int ff_set_common_color_ranges2(const AVFilterContext *ctx,
985 AVFilterFormatsConfig **cfg_in,
986 AVFilterFormatsConfig **cfg_out,
987 AVFilterFormats *color_ranges)
988 {
989
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 16147 SET_COMMON_FORMATS2(ctx, cfg_in, cfg_out, color_ranges, AVMEDIA_TYPE_VIDEO,
990 ff_formats_ref, ff_formats_unref);
991 }
992
993 ✗ int ff_set_common_color_ranges_from_list2(const AVFilterContext *ctx,
994 AVFilterFormatsConfig **cfg_in,
995 AVFilterFormatsConfig **cfg_out,
996 const int *color_ranges)
997 {
998 ✗ return ff_set_common_color_ranges2(ctx, cfg_in, cfg_out, ff_make_format_list(color_ranges));
999 }
1000
1001 ✗ int ff_set_common_all_color_ranges2(const AVFilterContext *ctx,
1002 AVFilterFormatsConfig **cfg_in,
1003 AVFilterFormatsConfig **cfg_out)
1004 {
1005 ✗ return ff_set_common_color_ranges2(ctx, cfg_in, cfg_out, ff_all_color_ranges());
1006 }
1007
1008 20544 int ff_set_common_formats2(const AVFilterContext *ctx,
1009 AVFilterFormatsConfig **cfg_in,
1010 AVFilterFormatsConfig **cfg_out,
1011 AVFilterFormats *formats)
1012 {
1013
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 54727 SET_COMMON_FORMATS2(ctx, cfg_in, cfg_out, formats, AVMEDIA_TYPE_UNKNOWN,
1014 ff_formats_ref, ff_formats_unref);
1015 }
1016
1017 1844 int ff_set_common_formats_from_list2(const AVFilterContext *ctx,
1018 AVFilterFormatsConfig **cfg_in,
1019 AVFilterFormatsConfig **cfg_out,
1020 const int *fmts)
1021 {
1022 1844 return ff_set_common_formats2(ctx, cfg_in, cfg_out, ff_make_format_list(fmts));
1023 }
1024
1025
1026 43703 int ff_default_query_formats(AVFilterContext *ctx)
1027 {
1028 43703 const FFFilter *const f = fffilter(ctx->filter);
1029 AVFilterFormats *formats;
1030 enum AVMediaType type;
1031 int ret;
1032
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 43703 switch (f->formats_state) {
1034 1399 case FF_FILTER_FORMATS_PIXFMT_LIST:
1035 1399 type = AVMEDIA_TYPE_VIDEO;
1036 1399 formats = ff_make_format_list(f->formats.pixels_list);
1037 1399 break;
1038 20 case FF_FILTER_FORMATS_SAMPLEFMTS_LIST:
1039 20 type = AVMEDIA_TYPE_AUDIO;
1040 20 formats = ff_make_format_list(f->formats.samples_list);
1041 20 break;
1042 33 case FF_FILTER_FORMATS_SINGLE_PIXFMT:
1043 33 type = AVMEDIA_TYPE_VIDEO;
1044 33 formats = ff_make_formats_list_singleton(f->formats.pix_fmt);
1045 33 break;
1046 13 case FF_FILTER_FORMATS_SINGLE_SAMPLEFMT:
1047 13 type = AVMEDIA_TYPE_AUDIO;
1048 13 formats = ff_make_formats_list_singleton(f->formats.sample_fmt);
1049 13 break;
1050 42238 default:
1051 av_assert2(!"Unreachable");
1052 /* Intended fallthrough */
1053 case FF_FILTER_FORMATS_PASSTHROUGH:
1054 case FF_FILTER_FORMATS_QUERY_FUNC:
1055 case FF_FILTER_FORMATS_QUERY_FUNC2:
1056 42238 type = AVMEDIA_TYPE_UNKNOWN;
1057
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 49273 formats = ff_all_formats(ctx->nb_inputs ? ctx->inputs [0]->type :
1058
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 7035 ctx->nb_outputs ? ctx->outputs[0]->type :
1059 AVMEDIA_TYPE_VIDEO);
1060 42238 break;
1061 }
1062
1063 43703 ret = ff_set_common_formats(ctx, formats);
1064
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 43703 if (ret < 0)
1065 ✗ return ret;
1066
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 43703 if (type != AVMEDIA_TYPE_AUDIO) {
1067 43670 ret = ff_set_common_all_color_spaces(ctx);
1068
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 43670 if (ret < 0)
1069 ✗ return ret;
1070 43670 ret = ff_set_common_all_color_ranges(ctx);
1071
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 43670 if (ret < 0)
1072 ✗ return ret;
1073 }
1074
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 43703 if (type != AVMEDIA_TYPE_VIDEO) {
1075 42271 ret = ff_set_common_all_channel_counts(ctx);
1076
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 42271 if (ret < 0)
1077 ✗ return ret;
1078 42271 ret = ff_set_common_all_samplerates(ctx);
1079
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 42271 if (ret < 0)
1080 ✗ return ret;
1081 }
1082
1083 43703 return 0;
1084 }
1085
1086 157938 static int check_list(void *log, const char *name, const AVFilterFormats *fmts)
1087 {
1088 unsigned i, j;
1089
1090
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 157938 if (!fmts)
1091 66172 return 0;
1092
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 91766 if (!fmts->nb_formats) {
1093 ✗ av_log(log, AV_LOG_ERROR, "Empty %s list\n", name);
1094 ✗ return AVERROR(EINVAL);
1095 }
1096
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 3553492 for (i = 0; i < fmts->nb_formats; i++) {
1097
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1098
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 342041100 if (fmts->formats[i] == fmts->formats[j]) {
1099 ✗ av_log(log, AV_LOG_ERROR, "Duplicated %s\n", name);
1100 ✗ return AVERROR(EINVAL);
1101 }
1102 }
1103 }
1104 91766 return 0;
1105 }
1106
1107 48806 int ff_formats_check_pixel_formats(void *log, const AVFilterFormats *fmts)
1108 {
1109 48806 return check_list(log, "pixel format", fmts);
1110 }
1111
1112 9350 int ff_formats_check_sample_formats(void *log, const AVFilterFormats *fmts)
1113 {
1114 9350 return check_list(log, "sample format", fmts);
1115 }
1116
1117 9350 int ff_formats_check_sample_rates(void *log, const AVFilterFormats *fmts)
1118 {
1119
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 9350 if (!fmts || !fmts->nb_formats)
1120 7180 return 0;
1121 2170 return check_list(log, "sample rate", fmts);
1122 }
1123
1124 48806 int ff_formats_check_color_spaces(void *log, const AVFilterFormats *fmts)
1125 {
1126
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 155540 for (int i = 0; fmts && i < fmts->nb_formats; i++) {
1127
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 106734 if (fmts->formats[i] == AVCOL_SPC_RESERVED) {
1128 ✗ av_log(log, AV_LOG_ERROR, "Invalid color space\n");
1129 ✗ return AVERROR(EINVAL);
1130 }
1131 }
1132 48806 return check_list(log, "color space", fmts);
1133 }
1134
1135 48806 int ff_formats_check_color_ranges(void *log, const AVFilterFormats *fmts)
1136 {
1137 48806 return check_list(log, "color range", fmts);
1138 }
1139
1140 3180 static int layouts_compatible(const AVChannelLayout *a, const AVChannelLayout *b)
1141 {
1142 3180 return !av_channel_layout_compare(a, b) ||
1143
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 6360 (KNOWN(a) && !KNOWN(b) && a->nb_channels == b->nb_channels) ||
1144
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 3180 (KNOWN(b) && !KNOWN(a) && b->nb_channels == a->nb_channels);
1145 }
1146
1147 9350 int ff_formats_check_channel_layouts(void *log, const AVFilterChannelLayouts *fmts)
1148 {
1149 unsigned i, j;
1150
1151
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 9350 if (!fmts)
1152 4538 return 0;
1153
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 4812 if (fmts->all_layouts < fmts->all_counts) {
1154 ✗ av_log(log, AV_LOG_ERROR, "Inconsistent generic list\n");
1155 ✗ return AVERROR(EINVAL);
1156 }
1157
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 4812 if (!fmts->all_layouts && !fmts->nb_channel_layouts) {
1158 ✗ av_log(log, AV_LOG_ERROR, "Empty channel layout list\n");
1159 ✗ return AVERROR(EINVAL);
1160 }
1161
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 7173 for (i = 0; i < fmts->nb_channel_layouts; i++) {
1162
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 3180 if (layouts_compatible(&fmts->channel_layouts[i], &fmts->channel_layouts[j])) {
1164 ✗ av_log(log, AV_LOG_ERROR, "Duplicated or redundant channel layout\n");
1165 ✗ return AVERROR(EINVAL);
1166 }
1167 }
1168 }
1169 4812 return 0;
1170 }
1171