FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavfilter/formats.c
Date: 2025-06-30 14:39:11
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 70485 static int merge_formats_internal(AVFilterFormats *a, AVFilterFormats *b,
95 enum AVMediaType type, int check)
96 {
97 int i, j;
98 70485 int alpha1=0, alpha2=0;
99 70485 int chroma1=0, chroma2=0;
100
101 av_assert2(check || (a->refcount && b->refcount));
102
103
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 70485 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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 70485 if (type == AVMEDIA_TYPE_VIDEO)
114
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 3205158 for (i = 0; i < a->nb_formats; i++) {
115 3145840 const AVPixFmtDescriptor *const adesc = av_pix_fmt_desc_get(a->formats[i]);
116
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 180262715 for (j = 0; j < b->nb_formats; j++) {
117 177116875 const AVPixFmtDescriptor *bdesc = av_pix_fmt_desc_get(b->formats[j]);
118 177116875 alpha2 |= adesc->flags & bdesc->flags & AV_PIX_FMT_FLAG_ALPHA;
119
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 177116875 chroma2|= adesc->nb_components > 1 && bdesc->nb_components > 1;
120
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 177116875 if (a->formats[i] == b->formats[j]) {
121 702674 alpha1 |= adesc->flags & AV_PIX_FMT_FLAG_ALPHA;
122 702674 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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 70485 if (alpha2 > alpha1 || chroma2 > chroma1)
129 574 return 0;
130
131
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 47337198 MERGE_FORMATS(a, b, formats, nb_formats, AVFilterFormats, check, 0);
132
133 35874 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 29348 static int can_merge_pix_fmts(const void *a, const void *b)
144 {
145 29348 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 29970 static int merge_pix_fmts(void *a, void *b)
162 {
163 29970 return merge_formats_internal(a, b, AVMEDIA_TYPE_VIDEO, 0);
164 }
165
166 /**
167 * See can_merge_pix_fmts().
168 */
169 5263 static int can_merge_sample_fmts(const void *a, const void *b)
170 {
171 5263 return merge_formats_internal((AVFilterFormats *)a,
172 (AVFilterFormats *)b, AVMEDIA_TYPE_AUDIO, 1);
173 }
174
175 /**
176 * See merge_pix_fmts().
177 */
178 5904 static int merge_sample_fmts(void *a, void *b)
179 {
180 5904 return merge_formats_internal(a, b, AVMEDIA_TYPE_AUDIO, 0);
181 }
182
183 11171 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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 11171 if (a == b) return 1;
188
189
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 37643 MERGE_FORMATS(a, b, formats, nb_formats, AVFilterFormats, check, 1);
190 5904 return 1;
191 }
192
193 /**
194 * See can_merge_pix_fmts().
195 */
196 5267 static int can_merge_samplerates(const void *a, const void *b)
197 {
198 5267 return merge_samplerates_internal((AVFilterFormats *)a, (AVFilterFormats *)b, 1);
199 }
200
201 /**
202 * See merge_pix_fmts().
203 */
204 5904 static int merge_samplerates(void *a, void *b)
205 {
206 5904 return merge_samplerates_internal(a, b, 0);
207 }
208
209 /**
210 * See merge_pix_fmts().
211 */
212 6598 static int merge_channel_layouts_internal(AVFilterChannelLayouts *a,
213 AVFilterChannelLayouts *b, int check)
214 {
215 6598 AVChannelLayout *channel_layouts = NULL;
216 6598 unsigned a_all = a->all_layouts + a->all_counts;
217 6598 unsigned b_all = b->all_layouts + b->all_counts;
218 6598 int ret_max, ret_nb = 0, i, j, round;
219
220 av_assert2(a->refcount && b->refcount);
221
222
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 6598 if (a == b) return 1;
223
224 /* Put the most generic set in a, to avoid doing everything twice */
225
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 6598 if (a_all < b_all) {
226 3325 FFSWAP(AVFilterChannelLayouts *, a, b);
227 3325 FFSWAP(unsigned, a_all, b_all);
228 }
229
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 6598 if (a_all) {
230
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 6419 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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 17496 MERGE_REF(b, a, channel_layouts, AVFilterChannelLayouts, return AVERROR(ENOMEM););
245 6419 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 5274 static int can_merge_channel_layouts(const void *a, const void *b)
314 {
315 5274 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 117386 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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 117386 if (a == b)
330 ✗ return 1;
331
332
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 2223323 MERGE_FORMATS(a, b, formats, nb_formats, AVFilterFormats, check, 0);
333
334 59936 return 1;
335 }
336
337 57450 static int can_merge_generic(const void *a, const void *b)
338 {
339 57450 return merge_generic_internal((AVFilterFormats *)a,
340 (AVFilterFormats *)b, 1);
341 }
342
343 59936 static int merge_generic(void *a, void *b)
344 {
345 59936 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 35925 const AVFilterNegotiation *ff_filter_get_negotiation(AVFilterLink *link)
399 {
400
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 35925 switch (link->type) {
401 30017 case AVMEDIA_TYPE_VIDEO: return &negotiate_video;
402 5908 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 4338 AVFilterFormats *ff_make_format_list(const int *fmts)
437 {
438
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 51244 MAKE_FORMAT_LIST(AVFilterFormats, formats, nb_formats);
439
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 51244 while (count--)
440 46906 formats->formats[count] = fmts[count];
441
442 4338 return formats;
443 }
444
445 213 AVFilterChannelLayouts *ff_make_channel_layout_list(const AVChannelLayout *fmts)
446 {
447 AVFilterChannelLayouts *ch_layouts;
448 213 int count = 0;
449
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 213 if (fmts)
450
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 750 for (count = 0; fmts[count].nb_channels; count++)
451 ;
452 213 ch_layouts = av_mallocz(sizeof(*ch_layouts));
453
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 213 if (!ch_layouts)
454 ✗ return NULL;
455 213 ch_layouts->nb_channel_layouts = count;
456
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 213 if (count) {
457 426 ch_layouts->channel_layouts =
458 213 av_calloc(count, sizeof(*ch_layouts->channel_layouts));
459
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 213 if (!ch_layouts->channel_layouts) {
460 ✗ av_freep(&ch_layouts);
461 ✗ return NULL;
462 }
463
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 750 for (int i = 0; i < count; i++) {
464 537 int ret = av_channel_layout_copy(&ch_layouts->channel_layouts[i], &fmts[i]);
465
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 537 if (ret < 0)
466 ✗ goto fail;
467 }
468 }
469
470 213 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 4136155 int ff_add_format(AVFilterFormats **avff, int64_t fmt)
506 {
507
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 4136155 ADD_FORMAT(avff, fmt, ff_formats_unref, int, formats, nb_formats);
508 4136155 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 2261 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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 2261 ADD_FORMAT(l, channel_layout, ff_channel_layouts_unref, AVChannelLayout, channel_layouts, nb_channel_layouts);
527 2261 return 0;
528 }
529
530 56 AVFilterFormats *ff_make_formats_list_singleton(int fmt)
531 {
532 56 int fmts[2] = { fmt, -1 };
533 56 return ff_make_format_list(fmts);
534 }
535
536 45391 AVFilterFormats *ff_all_formats(enum AVMediaType type)
537 {
538 45391 AVFilterFormats *ret = NULL;
539
540
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 45391 if (type == AVMEDIA_TYPE_VIDEO) {
541 35266 return ff_formats_pixdesc_filter(0, 0);
542
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 10125 } else if (type == AVMEDIA_TYPE_AUDIO) {
543 10125 enum AVSampleFormat fmt = 0;
544
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 131625 while (av_get_sample_fmt_name(fmt)) {
545
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 121500 if (ff_add_format(&ret, fmt) < 0)
546 ✗ return NULL;
547 121500 fmt++;
548 }
549 }
550
551 10125 return ret;
552 }
553
554 35887 AVFilterFormats *ff_formats_pixdesc_filter(unsigned want, unsigned rej)
555 {
556 unsigned nb_formats, fmt, flags;
557 35887 AVFilterFormats *formats = NULL;
558
559 while (1) {
560 71774 nb_formats = 0;
561 18589466 for (fmt = 0;; fmt++) {
562 18589466 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
563
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 18589466 if (!desc)
564 71774 break;
565 18517692 flags = desc->flags;
566
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 18517692 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL) &&
567
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 17441082 !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
568
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 8469332 (desc->log2_chroma_w || desc->log2_chroma_h))
569 717740 flags |= FF_PIX_FMT_FLAG_SW_FLAT_SUB;
570
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 18517692 if ((flags & (want | rej)) != want)
571 19804 continue;
572
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 18497888 if (formats)
573 9248944 formats->formats[nb_formats] = fmt;
574 18497888 nb_formats++;
575 }
576
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 71774 if (formats) {
577
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 35887 av_assert0(formats->nb_formats == nb_formats);
578 35887 return formats;
579 }
580 35887 formats = av_mallocz(sizeof(*formats));
581
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 35887 if (!formats)
582 ✗ return NULL;
583 35887 formats->nb_formats = nb_formats;
584
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 35887 if (nb_formats) {
585 35887 formats->formats = av_malloc_array(nb_formats, sizeof(*formats->formats));
586
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 35887 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 44783 AVFilterFormats *ff_all_samplerates(void)
608 {
609 44783 AVFilterFormats *ret = av_mallocz(sizeof(*ret));
610 44783 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 45443 AVFilterChannelLayouts *ff_all_channel_counts(void)
623 {
624 45443 AVFilterChannelLayouts *ret = av_mallocz(sizeof(*ret));
625
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 45443 if (!ret)
626 ✗ return NULL;
627 45443 ret->all_layouts = ret->all_counts = 1;
628 45443 return ret;
629 }
630
631 56757 AVFilterFormats *ff_all_color_spaces(void)
632 {
633 56757 AVFilterFormats *ret = NULL;
634
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 56757 if (ff_add_format(&ret, AVCOL_SPC_UNSPECIFIED) < 0)
635 ✗ return NULL;
636
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 1078383 for (int csp = 0; csp < AVCOL_SPC_NB; csp++) {
637
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 1021626 if (csp == AVCOL_SPC_RESERVED ||
638 csp == AVCOL_SPC_UNSPECIFIED)
639 113514 continue;
640
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 908112 if (ff_add_format(&ret, csp) < 0)
641 ✗ return NULL;
642 }
643
644 56757 return ret;
645 }
646
647 56757 AVFilterFormats *ff_all_color_ranges(void)
648 {
649 56757 AVFilterFormats *ret = NULL;
650
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 227028 for (int range = 0; range < AVCOL_RANGE_NB; range++) {
651
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 170271 if (ff_add_format(&ret, range) < 0)
652 ✗ return NULL;
653 }
654
655 56757 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 11808 int ff_channel_layouts_ref(AVFilterChannelLayouts *f, AVFilterChannelLayouts **ref)
675 {
676
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 11808 FORMATS_REF(f, ref, ff_channel_layouts_unref);
677 }
678
679 221267 int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
680 {
681
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 221267 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 806834 void ff_formats_unref(AVFilterFormats **ref)
719 {
720
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 938234 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 202014 void ff_channel_layouts_unref(AVFilterChannelLayouts **ref)
731 {
732
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 213272 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 42448 int ff_set_common_channel_layouts(AVFilterContext *ctx,
792 AVFilterChannelLayouts *channel_layouts)
793 {
794
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 112421 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 42448 int ff_set_common_all_channel_counts(AVFilterContext *ctx)
805 {
806 42448 return ff_set_common_channel_layouts(ctx, ff_all_channel_counts());
807 }
808
809 42449 int ff_set_common_samplerates(AVFilterContext *ctx,
810 AVFilterFormats *samplerates)
811 {
812
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 112425 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 42449 int ff_set_common_all_samplerates(AVFilterContext *ctx)
823 {
824 42449 return ff_set_common_samplerates(ctx, ff_all_samplerates());
825 }
826
827 43859 int ff_set_common_color_spaces(AVFilterContext *ctx,
828 AVFilterFormats *color_spaces)
829 {
830
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 115561 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 43859 int ff_set_common_all_color_spaces(AVFilterContext *ctx)
841 {
842 43859 return ff_set_common_color_spaces(ctx, ff_all_color_spaces());
843 }
844
845 43859 int ff_set_common_color_ranges(AVFilterContext *ctx,
846 AVFilterFormats *color_ranges)
847 {
848
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 115561 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 43859 int ff_set_common_all_color_ranges(AVFilterContext *ctx)
859 {
860 43859 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 43893 int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
869 {
870
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 115672 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 1474 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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 3062 SET_COMMON_FORMATS2(ctx, cfg_in, cfg_out, channel_layouts, AVMEDIA_TYPE_AUDIO,
918 ff_channel_layouts_ref, ff_channel_layouts_unref);
919 }
920
921 210 int ff_set_common_channel_layouts_from_list2(const AVFilterContext *ctx,
922 AVFilterFormatsConfig **cfg_in,
923 AVFilterFormatsConfig **cfg_out,
924 const AVChannelLayout *fmts)
925 {
926 210 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 1446 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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 2978 SET_COMMON_FORMATS2(ctx, cfg_in, cfg_out, samplerates, AVMEDIA_TYPE_AUDIO,
942 ff_formats_ref, ff_formats_unref);
943 }
944
945 182 int ff_set_common_samplerates_from_list2(const AVFilterContext *ctx,
946 AVFilterFormatsConfig **cfg_in,
947 AVFilterFormatsConfig **cfg_out,
948 const int *samplerates)
949 {
950 182 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 7038 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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 16210 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 20624 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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 54961 SET_COMMON_FORMATS2(ctx, cfg_in, cfg_out, formats, AVMEDIA_TYPE_UNKNOWN,
1014 ff_formats_ref, ff_formats_unref);
1015 }
1016
1017 1847 int ff_set_common_formats_from_list2(const AVFilterContext *ctx,
1018 AVFilterFormatsConfig **cfg_in,
1019 AVFilterFormatsConfig **cfg_out,
1020 const int *fmts)
1021 {
1022 1847 return ff_set_common_formats2(ctx, cfg_in, cfg_out, ff_make_format_list(fmts));
1023 }
1024
1025
1026 43892 int ff_default_query_formats(AVFilterContext *ctx)
1027 {
1028 43892 const FFFilter *const f = fffilter(ctx->filter);
1029 AVFilterFormats *formats;
1030 enum AVMediaType type;
1031 int ret;
1032
1033
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 43892 switch (f->formats_state) {
1034 1413 case FF_FILTER_FORMATS_PIXFMT_LIST:
1035 1413 type = AVMEDIA_TYPE_VIDEO;
1036 1413 formats = ff_make_format_list(f->formats.pixels_list);
1037 1413 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 31 case FF_FILTER_FORMATS_SINGLE_PIXFMT:
1043 31 type = AVMEDIA_TYPE_VIDEO;
1044 31 formats = ff_make_formats_list_singleton(f->formats.pix_fmt);
1045 31 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 42415 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 42415 type = AVMEDIA_TYPE_UNKNOWN;
1057
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 49456 formats = ff_all_formats(ctx->nb_inputs ? ctx->inputs [0]->type :
1058
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 7041 ctx->nb_outputs ? ctx->outputs[0]->type :
1059 AVMEDIA_TYPE_VIDEO);
1060 42415 break;
1061 }
1062
1063 43892 ret = ff_set_common_formats(ctx, formats);
1064
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 43892 if (ret < 0)
1065 ✗ return ret;
1066
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 43892 if (type != AVMEDIA_TYPE_AUDIO) {
1067 43859 ret = ff_set_common_all_color_spaces(ctx);
1068
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 43859 if (ret < 0)
1069 ✗ return ret;
1070 43859 ret = ff_set_common_all_color_ranges(ctx);
1071
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 43859 if (ret < 0)
1072 ✗ return ret;
1073 }
1074
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 43892 if (type != AVMEDIA_TYPE_VIDEO) {
1075 42448 ret = ff_set_common_all_channel_counts(ctx);
1076
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 42448 if (ret < 0)
1077 ✗ return ret;
1078 42448 ret = ff_set_common_all_samplerates(ctx);
1079
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 42448 if (ret < 0)
1080 ✗ return ret;
1081 }
1082
1083 43892 return 0;
1084 }
1085
1086 158719 static int check_list(void *log, const char *name, const AVFilterFormats *fmts)
1087 {
1088 unsigned i, j;
1089
1090
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 158719 if (!fmts)
1091 66492 return 0;
1092
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 92227 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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 3575438 for (i = 0; i < fmts->nb_formats; i++) {
1097
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 347657750 for (j = i + 1; j < fmts->nb_formats; j++) {
1098
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 344174539 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 92227 return 0;
1105 }
1106
1107 49060 int ff_formats_check_pixel_formats(void *log, const AVFilterFormats *fmts)
1108 {
1109 49060 return check_list(log, "pixel format", fmts);
1110 }
1111
1112 9364 int ff_formats_check_sample_formats(void *log, const AVFilterFormats *fmts)
1113 {
1114 9364 return check_list(log, "sample format", fmts);
1115 }
1116
1117 9364 int ff_formats_check_sample_rates(void *log, const AVFilterFormats *fmts)
1118 {
1119
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 9364 if (!fmts || !fmts->nb_formats)
1120 7189 return 0;
1121 2175 return check_list(log, "sample rate", fmts);
1122 }
1123
1124 49060 int ff_formats_check_color_spaces(void *log, const AVFilterFormats *fmts)
1125 {
1126
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 156482 for (int i = 0; fmts && i < fmts->nb_formats; i++) {
1127
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 107422 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 49060 return check_list(log, "color space", fmts);
1133 }
1134
1135 49060 int ff_formats_check_color_ranges(void *log, const AVFilterFormats *fmts)
1136 {
1137 49060 return check_list(log, "color range", fmts);
1138 }
1139
1140 3420 static int layouts_compatible(const AVChannelLayout *a, const AVChannelLayout *b)
1141 {
1142 3420 return !av_channel_layout_compare(a, b) ||
1143
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 6840 (KNOWN(a) && !KNOWN(b) && a->nb_channels == b->nb_channels) ||
1144
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 3420 (KNOWN(b) && !KNOWN(a) && b->nb_channels == a->nb_channels);
1145 }
1146
1147 9364 int ff_formats_check_channel_layouts(void *log, const AVFilterChannelLayouts *fmts)
1148 {
1149 unsigned i, j;
1150
1151
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 9364 if (!fmts)
1152 4545 return 0;
1153
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 4819 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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 4819 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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 7215 for (i = 0; i < fmts->nb_channel_layouts; i++) {
1162
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 5816 for (j = i + 1; j < fmts->nb_channel_layouts; j++) {
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 3420 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 4819 return 0;
1170 }
1171