FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavformat/mux.c
Date: 2026-09-13 04:46:26
Exec Total Coverage
Lines: 584 809 72.2%
Functions: 32 38 84.2%
Branches: 446 648 68.8%
Line Branch Exec Source
1 /*
2 * muxing functions for use within FFmpeg
3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
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 "avformat.h"
23 #include "avformat_internal.h"
24 #include "internal.h"
25 #include "mux.h"
26 #include "version.h"
27 #include "libavcodec/bsf.h"
28 #include "libavcodec/codec_desc.h"
29 #include "libavcodec/internal.h"
30 #include "packet_internal.h"
31 #include "libavutil/mem.h"
32 #include "libavutil/opt.h"
33 #include "libavutil/dict.h"
34 #include "libavutil/timestamp.h"
35 #include "libavutil/avassert.h"
36 #include "libavutil/frame.h"
37 #include "libavutil/internal.h"
38 #include "libavutil/mathematics.h"
39
40 /**
41 * @file
42 * muxing functions for use within libavformat
43 */
44
45 /* fraction handling */
46
47 /**
48 * f = val + (num / den) + 0.5.
49 *
50 * 'num' is normalized so that it is such as 0 <= num < den.
51 *
52 * @param f fractional number
53 * @param val integer value
54 * @param num must be >= 0
55 * @param den must be >= 1
56 */
57 9330 static void frac_init(FFFrac *f, int64_t val, int64_t num, int64_t den)
58 {
59 9330 num += (den >> 1);
60
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 9330 if (num >= den) {
61 ✗ val += num / den;
62 ✗ num = num % den;
63 }
64 9330 f->val = val;
65 9330 f->num = num;
66 9330 f->den = den;
67 9330 }
68
69 /**
70 * Fractional addition to f: f = f + (incr / f->den).
71 *
72 * @param f fractional number
73 * @param incr increment, can be positive or negative
74 */
75 615401 static void frac_add(FFFrac *f, int64_t incr)
76 {
77 int64_t num, den;
78
79 615401 num = f->num + incr;
80 615401 den = f->den;
81
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 615401 if (num < 0) {
82 ✗ f->val += num / den;
83 ✗ num = num % den;
84 ✗ if (num < 0) {
85 ✗ num += den;
86 ✗ f->val--;
87 }
88
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 615401 } else if (num >= den) {
89 598259 f->val += num / den;
90 598259 num = num % den;
91 }
92 615401 f->num = num;
93 615401 }
94
95 8894 int avformat_alloc_output_context2(AVFormatContext **avctx, const AVOutputFormat *oformat,
96 const char *format, const char *filename)
97 {
98 8894 AVFormatContext *s = avformat_alloc_context();
99 8894 int ret = 0;
100
101 8894 *avctx = NULL;
102
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 8894 if (!s)
103 ✗ goto nomem;
104
105
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 8894 if (!oformat) {
106
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 8853 if (format) {
107 8646 oformat = av_guess_format(format, NULL, NULL);
108
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 8646 if (!oformat) {
109 ✗ av_log(s, AV_LOG_ERROR, "Requested output format '%s' is not known.\n", format);
110 ✗ ret = AVERROR(EINVAL);
111 ✗ goto error;
112 }
113 } else {
114 207 oformat = av_guess_format(NULL, filename, NULL);
115
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 207 if (!oformat) {
116 ✗ ret = AVERROR(EINVAL);
117 ✗ av_log(s, AV_LOG_ERROR,
118 "Unable to choose an output format for '%s'; "
119 "use a standard extension for the filename or specify "
120 "the format manually.\n", filename);
121 ✗ goto error;
122 }
123 }
124 }
125
126 8894 s->oformat = oformat;
127
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 8894 if (ffofmt(s->oformat)->priv_data_size > 0) {
128 4856 s->priv_data = av_mallocz(ffofmt(s->oformat)->priv_data_size);
129
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 4856 if (!s->priv_data)
130 ✗ goto nomem;
131
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 4856 if (s->oformat->priv_class) {
132 4524 *(const AVClass**)s->priv_data= s->oformat->priv_class;
133 4524 av_opt_set_defaults(s->priv_data);
134 }
135 } else
136 4038 s->priv_data = NULL;
137
138
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 8894 if (filename) {
139
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 8831 if (!(s->url = av_strdup(filename)))
140 ✗ goto nomem;
141
142 }
143 8894 *avctx = s;
144 8894 return 0;
145 ✗ nomem:
146 ✗ av_log(s, AV_LOG_ERROR, "Out of memory\n");
147 ✗ ret = AVERROR(ENOMEM);
148 ✗ error:
149 ✗ avformat_free_context(s);
150 ✗ return ret;
151 }
152
153 2325 static int validate_codec_tag(const AVFormatContext *s, const AVStream *st)
154 {
155 const AVCodecTag *avctag;
156 2325 enum AVCodecID id = AV_CODEC_ID_NONE;
157 2325 unsigned uppercase_tag = ff_toupper4(st->codecpar->codec_tag);
158 2325 int64_t tag = -1;
159
160 /**
161 * Check that tag + id is in the table
162 * If neither is in the table -> OK
163 * If tag is in the table with another id -> FAIL
164 * If id is in the table with another tag -> FAIL unless strict < normal
165 */
166
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 3418 for (int n = 0; s->oformat->codec_tag[n]; n++) {
167 3381 avctag = s->oformat->codec_tag[n];
168
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 302302 while (avctag->id != AV_CODEC_ID_NONE) {
169
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 301209 if (ff_toupper4(avctag->tag) == uppercase_tag) {
170 2288 id = avctag->id;
171
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 2288 if (id == st->codecpar->codec_id)
172 2288 return 1;
173 }
174
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 298921 if (avctag->id == st->codecpar->codec_id)
175 191229 tag = avctag->tag;
176 298921 avctag++;
177 }
178 }
179
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 37 if (id != AV_CODEC_ID_NONE)
180 ✗ return 0;
181
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 37 if (tag >= 0 && (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL))
182 27 return 0;
183 10 return 1;
184 }
185
186
187 8966 static int init_muxer(AVFormatContext *s, AVDictionary **options)
188 {
189 8966 FormatContextInternal *const fci = ff_fc_internal(s);
190 8966 AVDictionary *tmp = NULL;
191 8966 const FFOutputFormat *of = ffofmt(s->oformat);
192 AVDictionaryEntry *e;
193 static const unsigned default_codec_offsets[] = {
194 [AVMEDIA_TYPE_VIDEO] = offsetof(AVOutputFormat, video_codec),
195 [AVMEDIA_TYPE_AUDIO] = offsetof(AVOutputFormat, audio_codec),
196 [AVMEDIA_TYPE_SUBTITLE] = offsetof(AVOutputFormat, subtitle_codec),
197 };
198 8966 unsigned nb_type[FF_ARRAY_ELEMS(default_codec_offsets)] = { 0 };
199 8966 int ret = 0;
200
201
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 8966 if (options)
202 8938 av_dict_copy(&tmp, *options, 0);
203
204
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 8966 if ((ret = av_opt_set_dict(s, &tmp)) < 0)
205 ✗ goto fail;
206
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 13489 if (s->priv_data && s->oformat->priv_class && *(const AVClass**)s->priv_data==s->oformat->priv_class &&
207 4523 (ret = av_opt_set_dict2(s->priv_data, &tmp, AV_OPT_SEARCH_CHILDREN)) < 0)
208 ✗ goto fail;
209
210
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 8966 if (!s->url && !(s->url = av_strdup(""))) {
211 ✗ ret = AVERROR(ENOMEM);
212 ✗ goto fail;
213 }
214
215 // some sanity checks
216
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 8966 if (s->nb_streams == 0 && !(of->p.flags & AVFMT_NOSTREAMS)) {
217 ✗ av_log(s, AV_LOG_ERROR, "No streams to mux were specified\n");
218 ✗ ret = AVERROR(EINVAL);
219 ✗ goto fail;
220 }
221
222
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 18472 for (unsigned i = 0; i < s->nb_streams; i++) {
223 9506 AVStream *const st = s->streams[i];
224 9506 FFStream *const sti = ffstream(st);
225 9506 AVCodecParameters *const par = st->codecpar;
226 const AVCodecDescriptor *desc;
227
228
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 9506 if (!st->time_base.num) {
229 /* fall back on the default timebase values */
230
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 5 if (par->codec_type == AVMEDIA_TYPE_AUDIO && par->sample_rate)
231 ✗ avpriv_set_pts_info(st, 64, 1, par->sample_rate);
232 else
233 5 avpriv_set_pts_info(st, 33, 1, 90000);
234 }
235
236
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 9506 switch (par->codec_type) {
237 1901 case AVMEDIA_TYPE_AUDIO:
238
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 1901 if (par->sample_rate <= 0) {
239 ✗ av_log(s, AV_LOG_ERROR, "sample rate not set\n");
240 ✗ ret = AVERROR(EINVAL);
241 ✗ goto fail;
242 }
243
244
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 1901 if (!par->block_align)
245 1180 par->block_align = par->ch_layout.nb_channels *
246 590 av_get_bits_per_sample(par->codec_id) >> 3;
247 1901 break;
248 7429 case AVMEDIA_TYPE_VIDEO:
249
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 7429 if ((par->width <= 0 || par->height <= 0) &&
250 ✗ !(of->p.flags & AVFMT_NODIMENSIONS)) {
251 ✗ av_log(s, AV_LOG_ERROR, "dimensions not set\n");
252 ✗ ret = AVERROR(EINVAL);
253 ✗ goto fail;
254 }
255
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 7429 if (av_cmp_q(st->sample_aspect_ratio, par->sample_aspect_ratio)
256 ✗ && fabs(av_q2d(st->sample_aspect_ratio) - av_q2d(par->sample_aspect_ratio)) > 0.004*av_q2d(st->sample_aspect_ratio)
257 ) {
258 ✗ if (st->sample_aspect_ratio.num != 0 &&
259 ✗ st->sample_aspect_ratio.den != 0 &&
260 ✗ par->sample_aspect_ratio.num != 0 &&
261 ✗ par->sample_aspect_ratio.den != 0) {
262 ✗ av_log(s, AV_LOG_ERROR, "Aspect ratio mismatch between muxer "
263 "(%d/%d) and encoder layer (%d/%d)\n",
264 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
265 par->sample_aspect_ratio.num,
266 par->sample_aspect_ratio.den);
267 ✗ ret = AVERROR(EINVAL);
268 ✗ goto fail;
269 }
270 }
271 7429 break;
272 }
273
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 9506 if (of->flags_internal & (FF_OFMT_FLAG_MAX_ONE_OF_EACH | FF_OFMT_FLAG_ONLY_DEFAULT_CODECS)) {
274 1205 enum AVCodecID default_codec_id = AV_CODEC_ID_NONE;
275 unsigned nb;
276
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 1205 if ((unsigned)par->codec_type < FF_ARRAY_ELEMS(default_codec_offsets)) {
277 1205 nb = ++nb_type[par->codec_type];
278
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 1205 if (default_codec_offsets[par->codec_type])
279 1205 default_codec_id = *(const enum AVCodecID*)((const char*)of + default_codec_offsets[par->codec_type]);
280 }
281
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 1205 if (of->flags_internal & FF_OFMT_FLAG_ONLY_DEFAULT_CODECS &&
282
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 622 default_codec_id != AV_CODEC_ID_NONE && par->codec_id != default_codec_id) {
283 ✗ av_log(s, AV_LOG_ERROR, "%s muxer supports only codec %s for type %s\n",
284 ✗ of->p.name, avcodec_get_name(default_codec_id), av_get_media_type_string(par->codec_type));
285 ✗ ret = AVERROR(EINVAL);
286 ✗ goto fail;
287
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 1205 } else if (default_codec_id == AV_CODEC_ID_NONE ||
288
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 1205 (of->flags_internal & FF_OFMT_FLAG_MAX_ONE_OF_EACH && nb > 1)) {
289 ✗ const char *type = av_get_media_type_string(par->codec_type);
290 ✗ av_log(s, AV_LOG_ERROR, "%s muxer does not support %s stream of type %s\n",
291 ✗ of->p.name, default_codec_id == AV_CODEC_ID_NONE ? "any" : "more than one",
292 type ? type : "unknown");
293 ✗ ret = AVERROR(EINVAL);
294 ✗ goto fail;
295 }
296 }
297
298 9506 desc = avcodec_descriptor_get(par->codec_id);
299
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 9506 if (desc && desc->props & AV_CODEC_PROP_REORDER)
300 480 sti->reorder = 1;
301
302 9506 sti->is_intra_only = ff_is_intra_only(par->codec_id);
303
304
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 9506 if (of->p.codec_tag) {
305
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 4169 if ( par->codec_tag
306
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 2308 && par->codec_id == AV_CODEC_ID_RAWVIDEO
307
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 2206 && ( av_codec_get_tag(of->p.codec_tag, par->codec_id) == 0
308
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 2179 || av_codec_get_tag(of->p.codec_tag, par->codec_id) == MKTAG('r', 'a', 'w', ' '))
309
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 44 && !validate_codec_tag(s, st)) {
310 // the current rawvideo encoding system ends up setting
311 // the wrong codec_tag for avi/mov, we override it here
312 27 par->codec_tag = 0;
313 }
314
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 4169 if (par->codec_tag) {
315
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 2281 if (!validate_codec_tag(s, st)) {
316 ✗ const uint32_t otag = av_codec_get_tag(s->oformat->codec_tag, par->codec_id);
317 ✗ av_log(s, AV_LOG_ERROR,
318 "Tag %s incompatible with output codec id '%d' (%s)\n",
319 ✗ av_fourcc2str(par->codec_tag), par->codec_id, av_fourcc2str(otag));
320 ✗ ret = AVERROR_INVALIDDATA;
321 ✗ goto fail;
322 }
323 } else
324 1888 par->codec_tag = av_codec_get_tag(of->p.codec_tag, par->codec_id);
325 }
326
327
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 9506 if (par->codec_type != AVMEDIA_TYPE_ATTACHMENT &&
328
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 9505 par->codec_id != AV_CODEC_ID_SMPTE_2038)
329 9505 fci->nb_interleaved_streams++;
330 }
331 8966 fci->interleave_packet = of->interleave_packet;
332
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 8966 if (!fci->interleave_packet)
333
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 8902 fci->interleave_packet = fci->nb_interleaved_streams > 1 ?
334 ff_interleave_packet_per_dts :
335 ff_interleave_packet_passthrough;
336
337
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 8966 if (!s->priv_data && of->priv_data_size > 0) {
338 77 s->priv_data = av_mallocz(of->priv_data_size);
339
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 77 if (!s->priv_data) {
340 ✗ ret = AVERROR(ENOMEM);
341 ✗ goto fail;
342 }
343
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 77 if (of->p.priv_class) {
344 77 *(const AVClass **)s->priv_data = of->p.priv_class;
345 77 av_opt_set_defaults(s->priv_data);
346
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 77 if ((ret = av_opt_set_dict2(s->priv_data, &tmp, AV_OPT_SEARCH_CHILDREN)) < 0)
347 ✗ goto fail;
348 }
349 }
350
351 /* set muxer identification string */
352
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 8966 if (!(s->flags & AVFMT_FLAG_BITEXACT)) {
353 1171 av_dict_set(&s->metadata, "encoder", LIBAVFORMAT_IDENT, 0);
354 } else {
355 7795 av_dict_set(&s->metadata, "encoder", NULL, 0);
356 }
357
358
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 8970 for (e = NULL; e = av_dict_get(s->metadata, "encoder-", e, AV_DICT_IGNORE_SUFFIX); ) {
359 4 av_dict_set(&s->metadata, e->key, NULL, 0);
360 }
361
362
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 8966 if (options) {
363 8938 av_dict_free(options);
364 8938 *options = tmp;
365 }
366
367
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 8966 if (of->init) {
368
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 1339 if ((ret = of->init(s)) < 0) {
369 ✗ if (of->deinit)
370 ✗ of->deinit(s);
371 ✗ return ret;
372 }
373 1339 return ret == 0;
374 }
375
376 7627 return 0;
377
378 ✗ fail:
379 ✗ av_dict_free(&tmp);
380 ✗ return ret;
381 }
382
383 8966 static int init_pts(AVFormatContext *s)
384 {
385 8966 FFFormatContext *const si = ffformatcontext(s);
386
387 /* init PTS generation */
388
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 18472 for (unsigned i = 0; i < s->nb_streams; i++) {
389 9506 AVStream *const st = s->streams[i];
390 9506 FFStream *const sti = ffstream(st);
391 9506 int64_t den = AV_NOPTS_VALUE;
392
393
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 9506 switch (st->codecpar->codec_type) {
394 1901 case AVMEDIA_TYPE_AUDIO:
395 1901 den = (int64_t)st->time_base.num * st->codecpar->sample_rate;
396 1901 break;
397 7429 case AVMEDIA_TYPE_VIDEO:
398 7429 den = (int64_t)st->time_base.num * st->time_base.den;
399 7429 break;
400 176 default:
401 176 break;
402 }
403
404
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 9506 if (den != AV_NOPTS_VALUE) {
405
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 9330 if (den <= 0)
406 ✗ return AVERROR_INVALIDDATA;
407
408 9330 frac_init(&sti->priv_pts, 0, 0, den);
409 }
410 }
411
412 8966 si->avoid_negative_ts_status = AVOID_NEGATIVE_TS_UNKNOWN;
413
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 8966 if (s->avoid_negative_ts < 0) {
414 av_assert2(s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO);
415
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 6042 if (s->oformat->flags & (AVFMT_TS_NEGATIVE | AVFMT_NOTIMESTAMPS)) {
416 4982 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_DISABLED;
417 4982 si->avoid_negative_ts_status = AVOID_NEGATIVE_TS_DISABLED;
418 } else
419 1060 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_NON_NEGATIVE;
420
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 2924 } else if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_DISABLED)
421 3 si->avoid_negative_ts_status = AVOID_NEGATIVE_TS_DISABLED;
422
423 8966 return 0;
424 }
425
426 613126 static void flush_if_needed(AVFormatContext *s)
427 {
428
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 613126 if (s->pb && s->pb->error >= 0) {
429
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 612975 if (s->flush_packets == 1 || s->flags & AVFMT_FLAG_FLUSH_PACKETS)
430 ✗ avio_flush(s->pb);
431
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 612975 else if (s->flush_packets && !(s->oformat->flags & AVFMT_NOFILE))
432 612975 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
433 }
434 613126 }
435
436 8966 static void deinit_muxer(AVFormatContext *s)
437 {
438 8966 FormatContextInternal *const fci = ff_fc_internal(s);
439 8966 const FFOutputFormat *const of = ffofmt(s->oformat);
440
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 8966 if (of && of->deinit && fci->initialized)
441 4528 of->deinit(s);
442 8966 fci->initialized =
443 8966 fci->streams_initialized = 0;
444 8966 }
445
446 8966 int avformat_init_output(AVFormatContext *s, AVDictionary **options)
447 {
448 8966 FormatContextInternal *const fci = ff_fc_internal(s);
449 8966 int ret = 0;
450
451
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 8966 if ((ret = init_muxer(s, options)) < 0)
452 ✗ return ret;
453
454 8966 fci->initialized = 1;
455 8966 fci->streams_initialized = ret;
456
457
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 8966 if (ffofmt(s->oformat)->init && ret) {
458
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 1022 if ((ret = init_pts(s)) < 0)
459 ✗ return ret;
460
461 1022 return AVSTREAM_INIT_IN_INIT_OUTPUT;
462 }
463
464 7944 return AVSTREAM_INIT_IN_WRITE_HEADER;
465 }
466
467 8966 int avformat_write_header(AVFormatContext *s, AVDictionary **options)
468 {
469 8966 FormatContextInternal *const fci = ff_fc_internal(s);
470 8966 int already_initialized = fci->initialized;
471 8966 int streams_already_initialized = fci->streams_initialized;
472 8966 int ret = 0;
473
474
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 8966 if (!already_initialized)
475
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 8938 if ((ret = avformat_init_output(s, options)) < 0)
476 ✗ return ret;
477
478
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 8966 if (ffofmt(s->oformat)->write_header) {
479
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 6464 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
480 6319 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_HEADER);
481 6464 ret = ffofmt(s->oformat)->write_header(s);
482
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 6464 if (ret >= 0 && s->pb && s->pb->error < 0)
483 ✗ ret = s->pb->error;
484
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 6464 if (ret < 0)
485 ✗ goto fail;
486 6464 flush_if_needed(s);
487 }
488
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 8966 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
489 8777 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_UNKNOWN);
490
491
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 8966 if (!fci->streams_initialized) {
492
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 7944 if ((ret = init_pts(s)) < 0)
493 ✗ goto fail;
494 }
495
496 8966 return streams_already_initialized;
497
498 ✗ fail:
499 ✗ deinit_muxer(s);
500 ✗ return ret;
501 }
502
503 #define AV_PKT_FLAG_UNCODED_FRAME 0x2000
504
505
506 #if FF_API_COMPUTE_PKT_FIELDS2
507 FF_DISABLE_DEPRECATION_WARNINGS
508 //FIXME merge with compute_pkt_fields
509 618069 static int compute_muxer_pkt_fields(AVFormatContext *s, AVStream *st, AVPacket *pkt)
510 {
511 618069 FormatContextInternal *const fci = ff_fc_internal(s);
512 618069 FFStream *const sti = ffstream(st);
513 618069 int delay = st->codecpar->video_delay;
514 int frame_size;
515
516
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 618069 if (!fci->missing_ts_warning &&
517
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 616866 !(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
518
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 288362 (!(st->disposition & AV_DISPOSITION_ATTACHED_PIC) || (st->disposition & AV_DISPOSITION_TIMED_THUMBNAILS)) &&
519
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 288338 (pkt->pts == AV_NOPTS_VALUE || pkt->dts == AV_NOPTS_VALUE)) {
520 23 av_log(s, AV_LOG_WARNING,
521 "Timestamps are unset in a packet for stream %d. "
522 "This is deprecated and will stop working in the future. "
523 "Fix your code to set the timestamps properly\n", st->index);
524 23 fci->missing_ts_warning = 1;
525 }
526
527
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 618069 if (s->debug & AV_FDEBUG_TS)
528 ✗ av_log(s, AV_LOG_DEBUG, "compute_muxer_pkt_fields: pts:%s dts:%s cur_dts:%s b:%d size:%d st:%d\n",
529 ✗ av_ts2str(pkt->pts), av_ts2str(pkt->dts), av_ts2str(sti->cur_dts), delay, pkt->size, pkt->stream_index);
530
531
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 618069 if (pkt->pts == AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE && delay == 0)
532 3822 pkt->pts = pkt->dts;
533
534 //XXX/FIXME this is a temporary hack until all encoders output pts
535
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 618069 if ((pkt->pts == 0 || pkt->pts == AV_NOPTS_VALUE) && pkt->dts == AV_NOPTS_VALUE && !delay) {
536 static int warned;
537
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 1 if (!warned) {
538 1 av_log(s, AV_LOG_WARNING, "Encoder did not produce proper pts, making some up.\n");
539 1 warned = 1;
540 }
541 1 pkt->dts =
542 // pkt->pts= st->cur_dts;
543 1 pkt->pts = sti->priv_pts.val;
544 }
545
546 //calculate dts from pts
547
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 618069 if (pkt->pts != AV_NOPTS_VALUE && pkt->dts == AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY) {
548 4 sti->pts_buffer[0] = pkt->pts;
549
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 5 for (int i = 1; i < delay + 1 && sti->pts_buffer[i] == AV_NOPTS_VALUE; i++)
550 1 sti->pts_buffer[i] = pkt->pts + (i - delay - 1) * pkt->duration;
551
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 8 for (int i = 0; i<delay && sti->pts_buffer[i] > sti->pts_buffer[i + 1]; i++)
552 4 FFSWAP(int64_t, sti->pts_buffer[i], sti->pts_buffer[i + 1]);
553
554 4 pkt->dts = sti->pts_buffer[0];
555 }
556
557
4/4
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 618069 if (sti->cur_dts && sti->cur_dts != AV_NOPTS_VALUE &&
558
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 602336 ((!(s->oformat->flags & AVFMT_TS_NONSTRICT) &&
559
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 421062 st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE &&
560
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 420620 st->codecpar->codec_type != AVMEDIA_TYPE_DATA &&
561
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 602336 sti->cur_dts >= pkt->dts) || sti->cur_dts > pkt->dts)) {
562 42 av_log(s, AV_LOG_ERROR,
563 "Application provided invalid, non monotonically increasing dts to muxer in stream %d: %s >= %s\n",
564 42 st->index, av_ts2str(sti->cur_dts), av_ts2str(pkt->dts));
565 42 return AVERROR(EINVAL);
566 }
567
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 618027 if (pkt->dts != AV_NOPTS_VALUE && pkt->pts != AV_NOPTS_VALUE && pkt->pts < pkt->dts) {
568 ✗ av_log(s, AV_LOG_ERROR,
569 "pts (%s) < dts (%s) in stream %d\n",
570 ✗ av_ts2str(pkt->pts), av_ts2str(pkt->dts),
571 st->index);
572 ✗ return AVERROR(EINVAL);
573 }
574
575
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 618027 if (s->debug & AV_FDEBUG_TS)
576 ✗ av_log(s, AV_LOG_DEBUG, "av_write_frame: pts2:%s dts2:%s\n",
577 ✗ av_ts2str(pkt->pts), av_ts2str(pkt->dts));
578
579 618027 sti->cur_dts = pkt->dts;
580 618027 sti->priv_pts.val = pkt->dts;
581
582 /* update pts */
583
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 618027 switch (st->codecpar->codec_type) {
584 451074 case AVMEDIA_TYPE_AUDIO:
585 902148 frame_size = (pkt->flags & AV_PKT_FLAG_UNCODED_FRAME) ?
586
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 451074 (*(AVFrame **)pkt->data)->nb_samples :
587 451074 av_get_audio_frame_duration2(st->codecpar, pkt->size);
588
589 /* HACK/FIXME, we skip the initial 0 size packets as they are most
590 * likely equal to the encoder delay, but it would be better if we
591 * had the real timestamps from the encoder */
592
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 451074 if (frame_size >= 0 && (pkt->size || sti->priv_pts.num != sti->priv_pts.den >> 1 || sti->priv_pts.val)) {
593 451073 frac_add(&sti->priv_pts, (int64_t)st->time_base.den * frame_size);
594 }
595 451074 break;
596 164328 case AVMEDIA_TYPE_VIDEO:
597 164328 frac_add(&sti->priv_pts, (int64_t)st->time_base.den * st->time_base.num);
598 164328 break;
599 }
600 618027 return 0;
601 }
602 FF_ENABLE_DEPRECATION_WARNINGS
603 #endif
604
605 618069 static void guess_pkt_duration(AVFormatContext *s, AVStream *st, AVPacket *pkt)
606 {
607
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 618069 if (pkt->duration < 0 && st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE) {
608 ✗ av_log(s, AV_LOG_WARNING, "Packet with invalid duration %"PRId64" in stream %d\n",
609 pkt->duration, pkt->stream_index);
610 ✗ pkt->duration = 0;
611 }
612
613
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 618069 if (pkt->duration)
614 598130 return;
615
616
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 19939 switch (st->codecpar->codec_type) {
617 18241 case AVMEDIA_TYPE_VIDEO:
618
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 18241 if (st->avg_frame_rate.num > 0 && st->avg_frame_rate.den > 0) {
619 17391 pkt->duration = av_rescale_q(1, av_inv_q(st->avg_frame_rate),
620 st->time_base);
621
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 850 } else if (st->time_base.num * 1000LL > st->time_base.den)
622 ✗ pkt->duration = 1;
623 18241 break;
624 1263 case AVMEDIA_TYPE_AUDIO: {
625 1263 int frame_size = av_get_audio_frame_duration2(st->codecpar, pkt->size);
626
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 1263 if (frame_size && st->codecpar->sample_rate) {
627 278 pkt->duration = av_rescale_q(frame_size,
628 278 (AVRational){1, st->codecpar->sample_rate},
629 st->time_base);
630 }
631 1263 break;
632 }
633 }
634 }
635
636 618056 static void handle_avoid_negative_ts(FFFormatContext *si, FFStream *sti,
637 AVPacket *pkt)
638 {
639 618056 AVFormatContext *const s = &si->pub;
640 int64_t offset;
641
642
2/2
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 618056 if (!AVOID_NEGATIVE_TS_ENABLED(si->avoid_negative_ts_status))
643 450118 return;
644
645
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 167938 if (si->avoid_negative_ts_status == AVOID_NEGATIVE_TS_UNKNOWN) {
646 3972 int use_pts = si->avoid_negative_ts_use_pts;
647
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 3972 int64_t ts = use_pts ? pkt->pts : pkt->dts;
648 3972 AVRational tb = sti->pub.time_base;
649
650
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 3972 if (ts == AV_NOPTS_VALUE)
651 ✗ return;
652
653 3972 ts -= sti->lowest_ts_allowed;
654
655 /* Peek into the muxing queue to improve our estimate
656 * of the lowest timestamp if av_interleaved_write_frame() is used. */
657 3972 for (const PacketListEntry *pktl = si->packet_buffer.head;
658
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 5095 pktl; pktl = pktl->next) {
659 1123 AVRational cmp_tb = s->streams[pktl->pkt.stream_index]->time_base;
660
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 1123 int64_t cmp_ts = use_pts ? pktl->pkt.pts : pktl->pkt.dts;
661
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 1123 if (cmp_ts == AV_NOPTS_VALUE)
662 ✗ continue;
663 1123 cmp_ts -= ffstream(s->streams[pktl->pkt.stream_index])->lowest_ts_allowed;
664
2/2
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 1123 if (s->output_ts_offset)
665 1 cmp_ts += av_rescale_q(s->output_ts_offset, AV_TIME_BASE_Q, cmp_tb);
666
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 1123 if (av_compare_ts(cmp_ts, cmp_tb, ts, tb) < 0) {
667 1 ts = cmp_ts;
668 1 tb = cmp_tb;
669 }
670 }
671
672
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 3972 if (ts < 0 ||
673
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 107 ts > 0 && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
674
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 197 for (unsigned i = 0; i < s->nb_streams; i++) {
675 110 AVStream *const st2 = s->streams[i];
676 110 FFStream *const sti2 = ffstream(st2);
677 110 sti2->mux_ts_offset = av_rescale_q_rnd(-ts, tb,
678 st2->time_base,
679 AV_ROUND_UP);
680 }
681 }
682 3972 si->avoid_negative_ts_status = AVOID_NEGATIVE_TS_KNOWN;
683 }
684
685 167938 offset = sti->mux_ts_offset;
686
687
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 167938 if (pkt->dts != AV_NOPTS_VALUE)
688 167938 pkt->dts += offset;
689
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 167938 if (pkt->pts != AV_NOPTS_VALUE)
690 167847 pkt->pts += offset;
691
692
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 167938 if (si->avoid_negative_ts_use_pts) {
693
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✓ Branch 3 taken 5553 times.
 5553 if (pkt->pts != AV_NOPTS_VALUE && pkt->pts < sti->lowest_ts_allowed) {
694 ✗ av_log(s, AV_LOG_WARNING, "failed to avoid negative "
695 "pts %s in stream %d.\n"
696 "Try -avoid_negative_ts 1 as a possible workaround.\n",
697 ✗ av_ts2str(pkt->pts),
698 pkt->stream_index
699 );
700 }
701 } else {
702
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 162385 if (pkt->dts != AV_NOPTS_VALUE && pkt->dts < sti->lowest_ts_allowed) {
703 ✗ av_log(s, AV_LOG_WARNING,
704 "Packets poorly interleaved, failed to avoid negative "
705 "timestamp %s in stream %d.\n"
706 "Try -max_interleave_delta 0 as a possible workaround.\n",
707 ✗ av_ts2str(pkt->dts),
708 pkt->stream_index
709 );
710 }
711 }
712 }
713
714 /**
715 * Shift timestamps and call muxer; the original pts/dts are not kept.
716 *
717 * FIXME: this function should NEVER get undefined pts/dts beside when the
718 * AVFMT_NOTIMESTAMPS is set.
719 * Those additional safety checks should be dropped once the correct checks
720 * are set in the callers.
721 */
722 618056 static int write_packet(AVFormatContext *s, AVPacket *pkt)
723 {
724 618056 FFFormatContext *const si = ffformatcontext(s);
725 618056 AVStream *const st = s->streams[pkt->stream_index];
726 618056 FFStream *const sti = ffstream(st);
727 int ret;
728
729 // If the timestamp offsetting below is adjusted, adjust
730 // ff_interleaved_peek similarly.
731
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 618056 if (s->output_ts_offset) {
732 804 int64_t offset = av_rescale_q(s->output_ts_offset, AV_TIME_BASE_Q, st->time_base);
733
734
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 804 if (pkt->dts != AV_NOPTS_VALUE)
735 804 pkt->dts += offset;
736
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✗ Branch 1 not taken.
 804 if (pkt->pts != AV_NOPTS_VALUE)
737 804 pkt->pts += offset;
738 }
739 618056 handle_avoid_negative_ts(si, sti, pkt);
740
741
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 618056 if ((pkt->flags & AV_PKT_FLAG_UNCODED_FRAME)) {
742 ✗ AVFrame **frame = (AVFrame **)pkt->data;
743 ✗ av_assert0(pkt->size == sizeof(*frame));
744 ✗ ret = ffofmt(s->oformat)->write_uncoded_frame(s, pkt->stream_index, frame, 0);
745 } else {
746 618056 ret = ffofmt(s->oformat)->write_packet(s, pkt);
747 }
748
749
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 618056 if (s->pb && ret >= 0) {
750 606431 flush_if_needed(s);
751
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 606431 if (s->pb->error < 0)
752 ✗ ret = s->pb->error;
753 }
754
755
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✓ Branch 1 taken 45 times.
 618056 if (ret >= 0)
756 618011 st->nb_frames++;
757
758 618056 return ret;
759 }
760
761 617942 static int check_packet(AVFormatContext *s, AVPacket *pkt)
762 {
763
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 617942 if (pkt->stream_index < 0 || pkt->stream_index >= s->nb_streams) {
764 ✗ av_log(s, AV_LOG_ERROR, "Invalid packet stream index: %d\n",
765 pkt->stream_index);
766 ✗ return AVERROR(EINVAL);
767 }
768
769
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 617942 if (s->streams[pkt->stream_index]->codecpar->codec_type == AVMEDIA_TYPE_ATTACHMENT) {
770 ✗ av_log(s, AV_LOG_ERROR, "Received a packet for an attachment stream.\n");
771 ✗ return AVERROR(EINVAL);
772 }
773
774 617942 return 0;
775 }
776
777 617942 static int prepare_input_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
778 {
779 617942 FFStream *const sti = ffstream(st);
780 #if !FF_API_COMPUTE_PKT_FIELDS2
781 /* sanitize the timestamps */
782 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {
783
784 /* when there is no reordering (so dts is equal to pts), but
785 * only one of them is set, set the other as well */
786 if (!sti->reorder) {
787 if (pkt->pts == AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE)
788 pkt->pts = pkt->dts;
789 if (pkt->dts == AV_NOPTS_VALUE && pkt->pts != AV_NOPTS_VALUE)
790 pkt->dts = pkt->pts;
791 }
792
793 /* check that the timestamps are set */
794 if (pkt->pts == AV_NOPTS_VALUE || pkt->dts == AV_NOPTS_VALUE) {
795 av_log(s, AV_LOG_ERROR,
796 "Timestamps are unset in a packet for stream %d\n", st->index);
797 return AVERROR(EINVAL);
798 }
799
800 /* check that the dts are increasing (or at least non-decreasing,
801 * if the format allows it */
802 if (sti->cur_dts != AV_NOPTS_VALUE &&
803 ((!(s->oformat->flags & AVFMT_TS_NONSTRICT) && sti->cur_dts >= pkt->dts) ||
804 sti->cur_dts > pkt->dts)) {
805 av_log(s, AV_LOG_ERROR,
806 "Application provided invalid, non monotonically increasing "
807 "dts to muxer in stream %d: %" PRId64 " >= %" PRId64 "\n",
808 st->index, sti->cur_dts, pkt->dts);
809 return AVERROR(EINVAL);
810 }
811
812 if (pkt->pts < pkt->dts) {
813 av_log(s, AV_LOG_ERROR, "pts %" PRId64 " < dts %" PRId64 " in stream %d\n",
814 pkt->pts, pkt->dts, st->index);
815 return AVERROR(EINVAL);
816 }
817 }
818 #endif
819 /* update flags */
820
2/2
✓ Branch 0 taken 558952 times.
✓ Branch 1 taken 58990 times.
 617942 if (sti->is_intra_only)
821 558952 pkt->flags |= AV_PKT_FLAG_KEY;
822
823
4/4
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✓ Branch 3 taken 77 times.
 617942 if (!pkt->data && !pkt->side_data_elems) {
824 /* Such empty packets signal EOS for the BSF API; so sanitize
825 * the packet by allocating data of size 0 (+ padding). */
826 4 av_buffer_unref(&pkt->buf);
827 4 return av_packet_make_refcounted(pkt);
828 }
829
830 617938 return 0;
831 }
832
833 #define CHUNK_START 0x1000
834
835 30174 int ff_interleave_add_packet(AVFormatContext *s, AVPacket *pkt,
836 int (*compare)(AVFormatContext *, const AVPacket *, const AVPacket *))
837 {
838 int ret;
839 30174 FFFormatContext *const si = ffformatcontext(s);
840 PacketListEntry **next_point, *this_pktl;
841 30174 AVStream *st = s->streams[pkt->stream_index];
842 30174 FFStream *const sti = ffstream(st);
843
2/4
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✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 30174 times.
 30174 int chunked = s->max_chunk_size || s->max_chunk_duration;
844
845 30174 this_pktl = av_malloc(sizeof(*this_pktl));
846
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 30174 times.
 30174 if (!this_pktl) {
847 ✗ av_packet_unref(pkt);
848 ✗ return AVERROR(ENOMEM);
849 }
850
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 30174 times.
 30174 if ((ret = av_packet_make_refcounted(pkt)) < 0) {
851 ✗ av_free(this_pktl);
852 ✗ av_packet_unref(pkt);
853 ✗ return ret;
854 }
855
856 30174 av_packet_move_ref(&this_pktl->pkt, pkt);
857 30174 pkt = &this_pktl->pkt;
858
859
2/2
✓ Branch 0 taken 15779 times.
✓ Branch 1 taken 14395 times.
 30174 if (sti->last_in_packet_buffer) {
860 15779 next_point = &(sti->last_in_packet_buffer->next);
861 } else {
862 14395 next_point = &si->packet_buffer.head;
863 }
864
865
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 30174 times.
 30174 if (chunked) {
866 ✗ uint64_t max= av_rescale_q_rnd(s->max_chunk_duration, AV_TIME_BASE_Q, st->time_base, AV_ROUND_UP);
867 ✗ sti->interleaver_chunk_size += pkt->size;
868 ✗ sti->interleaver_chunk_duration += pkt->duration;
869 ✗ if ( (s->max_chunk_size && sti->interleaver_chunk_size > s->max_chunk_size)
870 ✗ || (max && sti->interleaver_chunk_duration > max)) {
871 ✗ sti->interleaver_chunk_size = 0;
872 ✗ pkt->flags |= CHUNK_START;
873 ✗ if (max && sti->interleaver_chunk_duration > max) {
874 ✗ int64_t syncoffset = (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)*max/2;
875 ✗ int64_t syncto = av_rescale(pkt->dts + syncoffset, 1, max)*max - syncoffset;
876
877 ✗ sti->interleaver_chunk_duration += (pkt->dts - syncto)/8 - max;
878 } else
879 ✗ sti->interleaver_chunk_duration = 0;
880 }
881 }
882
2/2
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✓ Branch 1 taken 14746 times.
 30174 if (*next_point) {
883
1/4
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✓ Branch 1 taken 15428 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 15428 if (chunked && !(pkt->flags & CHUNK_START))
884 ✗ goto next_non_null;
885
886
2/2
✓ Branch 1 taken 8409 times.
✓ Branch 2 taken 7019 times.
 15428 if (compare(s, &si->packet_buffer.tail->pkt, pkt)) {
887 8409 while ( *next_point
888
2/6
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✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 20316 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 20316 && ((chunked && !((*next_point)->pkt.flags&CHUNK_START))
889
2/2
✓ Branch 1 taken 11907 times.
✓ Branch 2 taken 8409 times.
 20316 || !compare(s, &(*next_point)->pkt, pkt)))
890 11907 next_point = &(*next_point)->next;
891
1/2
✓ Branch 0 taken 8409 times.
✗ Branch 1 not taken.
 8409 if (*next_point)
892 8409 goto next_non_null;
893 } else {
894 7019 next_point = &(si->packet_buffer.tail->next);
895 }
896 }
897 av_assert1(!*next_point);
898
899 21765 si->packet_buffer.tail = this_pktl;
900 30174 next_non_null:
901
902 30174 this_pktl->next = *next_point;
903
904 30174 sti->last_in_packet_buffer = *next_point = this_pktl;
905
906 30174 return 0;
907 }
908
909 35066 static int interleave_compare_dts(AVFormatContext *s, const AVPacket *next,
910 const AVPacket *pkt)
911 {
912 35066 AVStream *st = s->streams[pkt->stream_index];
913 35066 AVStream *st2 = s->streams[next->stream_index];
914 35066 int comp = av_compare_ts(next->dts, st2->time_base, pkt->dts,
915 st->time_base);
916
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 35066 times.
 35066 if (s->audio_preload) {
917 ✗ int preload = st ->codecpar->codec_type == AVMEDIA_TYPE_AUDIO;
918 ✗ int preload2 = st2->codecpar->codec_type == AVMEDIA_TYPE_AUDIO;
919 ✗ if (preload != preload2) {
920 int64_t ts, ts2;
921 ✗ preload *= s->audio_preload;
922 ✗ preload2 *= s->audio_preload;
923 ✗ ts = av_rescale_q(pkt ->dts, st ->time_base, AV_TIME_BASE_Q) - preload;
924 ✗ ts2= av_rescale_q(next->dts, st2->time_base, AV_TIME_BASE_Q) - preload2;
925 ✗ if (ts == ts2) {
926 ✗ ts = ((uint64_t)pkt ->dts*st ->time_base.num*AV_TIME_BASE - (uint64_t)preload *st ->time_base.den)*st2->time_base.den
927 ✗ - ((uint64_t)next->dts*st2->time_base.num*AV_TIME_BASE - (uint64_t)preload2*st2->time_base.den)*st ->time_base.den;
928 ✗ ts2 = 0;
929 }
930 ✗ comp = (ts2 > ts) - (ts2 < ts);
931 }
932 }
933
934
2/2
✓ Branch 0 taken 6854 times.
✓ Branch 1 taken 28212 times.
 35066 if (comp == 0)
935 6854 return pkt->stream_index < next->stream_index;
936 28212 return comp > 0;
937 }
938
939 59579 int ff_interleave_packet_per_dts(AVFormatContext *s, AVPacket *pkt,
940 int flush, int has_packet)
941 {
942 59579 FormatContextInternal *const fci = ff_fc_internal(s);
943 59579 FFFormatContext *const si = &fci->fc;
944 59579 int stream_count = 0;
945 59579 int noninterleaved_count = 0;
946 int ret;
947
948
2/2
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✓ Branch 1 taken 30036 times.
 59579 if (has_packet) {
949
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 29543 times.
 29543 if ((ret = ff_interleave_add_packet(s, pkt, interleave_compare_dts)) < 0)
950 ✗ return ret;
951 }
952
953
2/2
✓ Branch 0 taken 175589 times.
✓ Branch 1 taken 59579 times.
 235168 for (unsigned i = 0; i < s->nb_streams; i++) {
954 175589 const AVStream *const st = s->streams[i];
955 175589 const FFStream *const sti = cffstream(st);
956 175589 const AVCodecParameters *const par = st->codecpar;
957
2/2
✓ Branch 0 taken 132965 times.
✓ Branch 1 taken 42624 times.
 175589 if (sti->last_in_packet_buffer) {
958 132965 ++stream_count;
959
2/2
✓ Branch 0 taken 42495 times.
✓ Branch 1 taken 129 times.
 42624 } else if (par->codec_type != AVMEDIA_TYPE_ATTACHMENT &&
960
2/2
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✓ Branch 1 taken 371 times.
 42495 par->codec_id != AV_CODEC_ID_VP8 &&
961
2/2
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✓ Branch 1 taken 76 times.
 42124 par->codec_id != AV_CODEC_ID_VP9 &&
962
1/2
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✗ Branch 1 not taken.
 42048 par->codec_id != AV_CODEC_ID_SMPTE_2038) {
963 42048 ++noninterleaved_count;
964 }
965 }
966
967
2/2
✓ Branch 0 taken 25396 times.
✓ Branch 1 taken 34183 times.
 59579 if (fci->nb_interleaved_streams == stream_count)
968 25396 flush = 1;
969
970
2/2
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✓ Branch 1 taken 129 times.
 59579 if (s->max_interleave_delta > 0 &&
971
2/2
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✓ Branch 1 taken 320 times.
 59450 si->packet_buffer.head &&
972
3/4
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✗ Branch 1 not taken.
✓ Branch 2 taken 30627 times.
✓ Branch 3 taken 28503 times.
 59130 si->packet_buffer.head->pkt.dts != AV_NOPTS_VALUE &&
973 30627 !flush &&
974
2/2
✓ Branch 0 taken 30216 times.
✓ Branch 1 taken 411 times.
 30627 fci->nb_interleaved_streams == stream_count+noninterleaved_count
975 ) {
976 30216 AVPacket *const top_pkt = &si->packet_buffer.head->pkt;
977 30216 int64_t delta_dts = INT64_MIN;
978 30216 int64_t top_dts = av_rescale_q(top_pkt->dts,
979 30216 s->streams[top_pkt->stream_index]->time_base,
980 30216 AV_TIME_BASE_Q);
981
982
2/2
✓ Branch 0 taken 88949 times.
✓ Branch 1 taken 30216 times.
 119165 for (unsigned i = 0; i < s->nb_streams; i++) {
983 88949 const AVStream *const st = s->streams[i];
984 88949 const FFStream *const sti = cffstream(st);
985 88949 const PacketListEntry *const last = sti->last_in_packet_buffer;
986 int64_t last_dts;
987
988
4/4
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✓ Branch 2 taken 1907 times.
✓ Branch 3 taken 52468 times.
 88949 if (!last || st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
989 36481 continue;
990
991 52468 last_dts = av_rescale_q(last->pkt.dts,
992 st->time_base,
993 52468 AV_TIME_BASE_Q);
994 52468 delta_dts = FFMAX(delta_dts, last_dts - top_dts);
995 }
996
997
2/2
✓ Branch 0 taken 1062 times.
✓ Branch 1 taken 29154 times.
 30216 if (delta_dts > s->max_interleave_delta) {
998 1062 av_log(s, AV_LOG_DEBUG,
999 "Delay between the first packet and last packet in the "
1000 "muxing queue is %"PRId64" > %"PRId64": forcing output\n",
1001 delta_dts, s->max_interleave_delta);
1002 1062 flush = 1;
1003 }
1004 }
1005
1006
4/4
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✓ Branch 1 taken 321 times.
✓ Branch 2 taken 29629 times.
✓ Branch 3 taken 29629 times.
 59579 if (stream_count && flush) {
1007 29629 PacketListEntry *pktl = si->packet_buffer.head;
1008 29629 AVStream *const st = s->streams[pktl->pkt.stream_index];
1009 29629 FFStream *const sti = ffstream(st);
1010
1011
2/2
✓ Branch 0 taken 14052 times.
✓ Branch 1 taken 15577 times.
 29629 if (sti->last_in_packet_buffer == pktl)
1012 14052 sti->last_in_packet_buffer = NULL;
1013 29629 ff_packet_list_get(&si->packet_buffer, pkt);
1014
1015 29629 return 1;
1016 } else {
1017 29950 return 0;
1018 }
1019 }
1020
1021 1156094 int ff_interleave_packet_passthrough(AVFormatContext *s, AVPacket *pkt,
1022 int flush, int has_packet)
1023 {
1024 1156094 return has_packet;
1025 }
1026
1027 12 int ff_get_muxer_ts_offset(AVFormatContext *s, int stream_index, int64_t *offset)
1028 {
1029 AVStream *st;
1030
1031
2/4
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 12 times.
 12 if (stream_index < 0 || stream_index >= s->nb_streams)
1032 ✗ return AVERROR(EINVAL);
1033
1034 12 st = s->streams[stream_index];
1035 12 *offset = ffstream(st)->mux_ts_offset;
1036
1037
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (s->output_ts_offset)
1038 ✗ *offset += av_rescale_q(s->output_ts_offset, AV_TIME_BASE_Q, st->time_base);
1039
1040 12 return 0;
1041 }
1042
1043 176 const AVPacket *ff_interleaved_peek(AVFormatContext *s, int stream)
1044 {
1045 176 FFFormatContext *const si = ffformatcontext(s);
1046 176 PacketListEntry *pktl = si->packet_buffer.head;
1047
2/2
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✓ Branch 1 taken 170 times.
 234 while (pktl) {
1048
2/2
✓ Branch 0 taken 6 times.
✓ Branch 1 taken 58 times.
 64 if (pktl->pkt.stream_index == stream) {
1049 6 return &pktl->pkt;
1050 }
1051 58 pktl = pktl->next;
1052 }
1053 170 return NULL;
1054 }
1055
1056 617942 static int check_bitstream(AVFormatContext *s, FFStream *sti, AVPacket *pkt)
1057 {
1058 int ret;
1059
1060
2/2
✓ Branch 0 taken 7908 times.
✓ Branch 1 taken 610034 times.
 617942 if (!(s->flags & AVFMT_FLAG_AUTO_BSF))
1061 7908 return 1;
1062
1063
2/2
✓ Branch 1 taken 44008 times.
✓ Branch 2 taken 566026 times.
 610034 if (ffofmt(s->oformat)->check_bitstream) {
1064
2/2
✓ Branch 0 taken 519 times.
✓ Branch 1 taken 43489 times.
 44008 if (!sti->bitstream_checked) {
1065
1/2
✗ Branch 2 not taken.
✓ Branch 3 taken 519 times.
 519 if ((ret = ffofmt(s->oformat)->check_bitstream(s, &sti->pub, pkt)) < 0)
1066 ✗ return ret;
1067
1/2
✓ Branch 0 taken 519 times.
✗ Branch 1 not taken.
 519 else if (ret == 1)
1068 519 sti->bitstream_checked = 1;
1069 }
1070 }
1071
1072 610034 return 1;
1073 }
1074
1075 612873 static int interleaved_write_packet(AVFormatContext *s, AVPacket *pkt,
1076 int flush, int has_packet)
1077 {
1078 612873 FormatContextInternal *const fci = ff_fc_internal(s);
1079
1080 603894 for (;; ) {
1081 1216767 int ret = fci->interleave_packet(s, pkt, flush, has_packet);
1082
2/2
✓ Branch 0 taken 612873 times.
✓ Branch 1 taken 603894 times.
 1216767 if (ret <= 0)
1083 612873 return ret;
1084
1085 603894 has_packet = 0;
1086
1087 603894 ret = write_packet(s, pkt);
1088 603894 av_packet_unref(pkt);
1089
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 603894 times.
 603894 if (ret < 0)
1090 ✗ return ret;
1091 }
1092 }
1093
1094 618069 static int write_packet_common(AVFormatContext *s, AVStream *st, AVPacket *pkt, int interleaved)
1095 {
1096 int ret;
1097
1098
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 618069 times.
 618069 if (s->debug & AV_FDEBUG_TS)
1099 ✗ av_log(s, AV_LOG_DEBUG, "%s size:%d dts:%s pts:%s\n", __func__,
1100 ✗ pkt->size, av_ts2str(pkt->dts), av_ts2str(pkt->pts));
1101
1102 618069 guess_pkt_duration(s, st, pkt);
1103
1104 #if FF_API_COMPUTE_PKT_FIELDS2
1105
3/4
✓ Branch 1 taken 42 times.
✓ Branch 2 taken 618027 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 42 times.
 618069 if ((ret = compute_muxer_pkt_fields(s, st, pkt)) < 0 && !(s->oformat->flags & AVFMT_NOTIMESTAMPS))
1106 ✗ return ret;
1107 #endif
1108
1109
2/2
✓ Branch 0 taken 603907 times.
✓ Branch 1 taken 14162 times.
 618069 if (interleaved) {
1110
1/4
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✓ Branch 1 taken 603907 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 603907 if (pkt->dts == AV_NOPTS_VALUE && !(s->oformat->flags & AVFMT_NOTIMESTAMPS))
1111 ✗ return AVERROR(EINVAL);
1112 603907 return interleaved_write_packet(s, pkt, 0, 1);
1113 } else {
1114 14162 return write_packet(s, pkt);
1115 }
1116 }
1117
1118 1122 static int write_packets_from_bsfs(AVFormatContext *s, AVStream *st, AVPacket *pkt, int interleaved)
1119 {
1120 1122 FFStream *const sti = ffstream(st);
1121 1122 AVBSFContext *const bsfc = sti->bsfc;
1122 int ret;
1123
1124
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 1122 times.
 1122 if ((ret = av_bsf_send_packet(bsfc, pkt)) < 0) {
1125 ✗ av_log(s, AV_LOG_ERROR,
1126 "Failed to send packet to filter %s for stream %d\n",
1127 ✗ bsfc->filter->name, st->index);
1128 ✗ return ret;
1129 }
1130
1131 do {
1132 2326 ret = av_bsf_receive_packet(bsfc, pkt);
1133
2/2
✓ Branch 0 taken 1122 times.
✓ Branch 1 taken 1204 times.
 2326 if (ret < 0) {
1134
3/4
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✓ Branch 1 taken 1077 times.
✓ Branch 2 taken 45 times.
✗ Branch 3 not taken.
 1122 if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
1135 1122 return 0;
1136 ✗ av_log(s, AV_LOG_ERROR, "Error applying bitstream filters to an output "
1137 ✗ "packet for stream #%d: %s\n", st->index, av_err2str(ret));
1138 ✗ if (!(s->error_recognition & AV_EF_EXPLODE) && ret != AVERROR(ENOMEM))
1139 ✗ continue;
1140 ✗ return ret;
1141 }
1142 1204 av_packet_rescale_ts(pkt, bsfc->time_base_out, st->time_base);
1143 1204 ret = write_packet_common(s, st, pkt, interleaved);
1144
2/4
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✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 1204 times.
 1204 if (ret >= 0 && !interleaved) // a successful write_packet_common already unrefed pkt for interleaved
1145 ✗ av_packet_unref(pkt);
1146
1/2
✓ Branch 0 taken 1204 times.
✗ Branch 1 not taken.
 1204 } while (ret >= 0);
1147
1148 ✗ return ret;
1149 }
1150
1151 617942 static int write_packets_common(AVFormatContext *s, AVPacket *pkt, int interleaved)
1152 {
1153 AVStream *st;
1154 FFStream *sti;
1155 617942 int ret = check_packet(s, pkt);
1156
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 617942 times.
 617942 if (ret < 0)
1157 ✗ return ret;
1158 617942 st = s->streams[pkt->stream_index];
1159 617942 sti = ffstream(st);
1160
1161 617942 ret = prepare_input_packet(s, st, pkt);
1162
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 617942 times.
 617942 if (ret < 0)
1163 ✗ return ret;
1164
1165 617942 ret = check_bitstream(s, sti, pkt);
1166
1/2
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✓ Branch 1 taken 617942 times.
 617942 if (ret < 0)
1167 ✗ return ret;
1168
1169
2/2
✓ Branch 0 taken 1077 times.
✓ Branch 1 taken 616865 times.
 617942 if (sti->bsfc) {
1170 1077 return write_packets_from_bsfs(s, st, pkt, interleaved);
1171 } else {
1172 616865 return write_packet_common(s, st, pkt, interleaved);
1173 }
1174 }
1175
1176 14393 int av_write_frame(AVFormatContext *s, AVPacket *in)
1177 {
1178 14393 FFFormatContext *const si = ffformatcontext(s);
1179 14393 AVPacket *pkt = si->parse_pkt;
1180 int ret;
1181
1182
2/2
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✓ Branch 1 taken 14162 times.
 14393 if (!in) {
1183
1/2
✓ Branch 1 taken 231 times.
✗ Branch 2 not taken.
 231 if (ffofmt(s->oformat)->flags_internal & FF_OFMT_FLAG_ALLOW_FLUSH) {
1184 231 ret = ffofmt(s->oformat)->write_packet(s, NULL);
1185 231 flush_if_needed(s);
1186
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 231 if (ret >= 0 && s->pb && s->pb->error < 0)
1187 ✗ ret = s->pb->error;
1188 231 return ret;
1189 }
1190 ✗ return 1;
1191 }
1192
1193
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 14162 if (in->flags & AV_PKT_FLAG_UNCODED_FRAME) {
1194 ✗ pkt = in;
1195 } else {
1196 /* We don't own in, so we have to make sure not to modify it.
1197 * (ff_write_chained() relies on this fact.)
1198 * The following avoids copying in's data unnecessarily.
1199 * Copying side data is unavoidable as a bitstream filter
1200 * may change it, e.g. free it on errors. */
1201 14162 pkt->data = in->data;
1202 14162 pkt->size = in->size;
1203 14162 ret = av_packet_copy_props(pkt, in);
1204
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 14162 if (ret < 0)
1205 ✗ return ret;
1206
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 14162 if (in->buf) {
1207 9473 pkt->buf = av_buffer_ref(in->buf);
1208
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 9473 if (!pkt->buf) {
1209 ✗ ret = AVERROR(ENOMEM);
1210 ✗ goto fail;
1211 }
1212 }
1213 }
1214
1215 14162 ret = write_packets_common(s, pkt, 0/*non-interleaved*/);
1216
1217 14162 fail:
1218 // Uncoded frames using the noninterleaved codepath are also freed here
1219 14162 av_packet_unref(pkt);
1220 14162 return ret;
1221 }
1222
1223 603780 int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt)
1224 {
1225 int ret;
1226
1227
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 603780 if (pkt) {
1228 603780 ret = write_packets_common(s, pkt, 1/*interleaved*/);
1229
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 603780 if (ret < 0)
1230 ✗ av_packet_unref(pkt);
1231 603780 return ret;
1232 } else {
1233 ✗ av_log(s, AV_LOG_TRACE, "av_interleaved_write_frame FLUSH\n");
1234 ✗ return interleaved_write_packet(s, ffformatcontext(s)->parse_pkt, 1/*flush*/, 0);
1235 }
1236 }
1237
1238 8966 int av_write_trailer(AVFormatContext *s)
1239 {
1240 8966 FFFormatContext *const si = ffformatcontext(s);
1241 8966 AVPacket *const pkt = si->parse_pkt;
1242 8966 int ret1, ret = 0;
1243
1244
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 18472 for (unsigned i = 0; i < s->nb_streams; i++) {
1245 9506 AVStream *const st = s->streams[i];
1246 9506 FFStream *const sti = ffstream(st);
1247
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 9506 if (sti->bsfc) {
1248 45 ret1 = write_packets_from_bsfs(s, st, pkt, 1/*interleaved*/);
1249
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 45 if (ret1 < 0)
1250 ✗ av_packet_unref(pkt);
1251
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 45 if (ret >= 0)
1252 45 ret = ret1;
1253 }
1254 }
1255 8966 ret1 = interleaved_write_packet(s, pkt, 1, 0);
1256
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 8966 if (ret >= 0)
1257 8966 ret = ret1;
1258
1259
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 8966 if (ffofmt(s->oformat)->write_trailer) {
1260
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 4493 if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
1261 4411 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER);
1262 4493 ret1 = ffofmt(s->oformat)->write_trailer(s);
1263
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 4493 if (ret >= 0)
1264 4493 ret = ret1;
1265 }
1266
1267 8966 deinit_muxer(s);
1268
1269
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 8966 if (s->pb)
1270 8777 avio_flush(s->pb);
1271
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 8966 if (ret == 0)
1272
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 8927 ret = s->pb ? s->pb->error : 0;
1273
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 18472 for (unsigned i = 0; i < s->nb_streams; i++) {
1274 9506 av_freep(&s->streams[i]->priv_data);
1275 9506 av_freep(&ffstream(s->streams[i])->index_entries);
1276 }
1277
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 8966 if (s->oformat->priv_class)
1278 4600 av_opt_free(s->priv_data);
1279 8966 av_freep(&s->priv_data);
1280 8966 av_packet_unref(si->pkt);
1281 8966 return ret;
1282 }
1283
1284 ✗ int av_get_output_timestamp(struct AVFormatContext *s, int stream,
1285 int64_t *dts, int64_t *wall)
1286 {
1287 ✗ const FFOutputFormat *const of = ffofmt(s->oformat);
1288 ✗ if (!of || !of->get_output_timestamp)
1289 ✗ return AVERROR(ENOSYS);
1290 ✗ of->get_output_timestamp(s, stream, dts, wall);
1291 ✗ return 0;
1292 }
1293
1294 45 int ff_stream_add_bitstream_filter(AVStream *st, const char *name, const char *args)
1295 {
1296 int ret;
1297 const AVBitStreamFilter *bsf;
1298 45 FFStream *const sti = ffstream(st);
1299 AVBSFContext *bsfc;
1300
1301
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 45 av_assert0(!sti->bsfc);
1302
1303
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 45 if (!(bsf = av_bsf_get_by_name(name))) {
1304 ✗ av_log(NULL, AV_LOG_ERROR, "Unknown bitstream filter '%s'\n", name);
1305 ✗ return AVERROR_BSF_NOT_FOUND;
1306 }
1307
1308
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 45 if ((ret = av_bsf_alloc(bsf, &bsfc)) < 0)
1309 ✗ return ret;
1310
1311 45 bsfc->time_base_in = st->time_base;
1312
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 45 if ((ret = avcodec_parameters_copy(bsfc->par_in, st->codecpar)) < 0) {
1313 ✗ av_bsf_free(&bsfc);
1314 ✗ return ret;
1315 }
1316
1317
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 45 if (args && bsfc->filter->priv_class) {
1318
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 20 if ((ret = av_set_options_string(bsfc->priv_data, args, "=", ":")) < 0) {
1319 ✗ av_bsf_free(&bsfc);
1320 ✗ return ret;
1321 }
1322 }
1323
1324
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 45 if ((ret = av_bsf_init(bsfc)) < 0) {
1325 ✗ av_bsf_free(&bsfc);
1326 ✗ return ret;
1327 }
1328
1329 45 sti->bsfc = bsfc;
1330
1331
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 45 av_log(NULL, AV_LOG_VERBOSE,
1332 "Automatically inserted bitstream filter '%s'; args='%s'\n",
1333 name, args ? args : "");
1334 45 return 1;
1335 }
1336
1337 9143 int ff_write_chained(AVFormatContext *dst, int dst_stream, AVPacket *pkt,
1338 AVFormatContext *src, int interleave)
1339 {
1340 9143 int64_t pts = pkt->pts, dts = pkt->dts, duration = pkt->duration;
1341 9143 int stream_index = pkt->stream_index;
1342 9143 AVRational time_base = pkt->time_base;
1343 int ret;
1344
1345 9143 pkt->stream_index = dst_stream;
1346
1347 9143 av_packet_rescale_ts(pkt,
1348 9143 src->streams[stream_index]->time_base,
1349 9143 dst->streams[dst_stream]->time_base);
1350
1351
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 9143 if (!interleave) {
1352 9143 ret = av_write_frame(dst, pkt);
1353 /* We only have to backup and restore the fields that
1354 * we changed ourselves, because av_write_frame() does not
1355 * modify the packet given to it. */
1356 9143 pkt->pts = pts;
1357 9143 pkt->dts = dts;
1358 9143 pkt->duration = duration;
1359 9143 pkt->stream_index = stream_index;
1360 9143 pkt->time_base = time_base;
1361 } else
1362 ✗ ret = av_interleaved_write_frame(dst, pkt);
1363
1364 9143 return ret;
1365 }
1366
1367 ✗ static void uncoded_frame_free(void *unused, uint8_t *data)
1368 {
1369 ✗ av_frame_free((AVFrame **)data);
1370 ✗ av_free(data);
1371 ✗ }
1372
1373 ✗ static int write_uncoded_frame_internal(AVFormatContext *s, int stream_index,
1374 AVFrame *frame, int interleaved)
1375 {
1376 ✗ FFFormatContext *const si = ffformatcontext(s);
1377 ✗ AVPacket *pkt = si->parse_pkt;
1378
1379 ✗ av_assert0(s->oformat);
1380 ✗ if (!ffofmt(s->oformat)->write_uncoded_frame) {
1381 ✗ av_frame_free(&frame);
1382 ✗ return AVERROR(ENOSYS);
1383 }
1384
1385 ✗ if (!frame) {
1386 ✗ pkt = NULL;
1387 } else {
1388 ✗ size_t bufsize = sizeof(frame) + AV_INPUT_BUFFER_PADDING_SIZE;
1389 ✗ AVFrame **framep = av_mallocz(bufsize);
1390
1391 ✗ if (!framep)
1392 ✗ goto fail;
1393 ✗ pkt->buf = av_buffer_create((void *)framep, bufsize,
1394 uncoded_frame_free, NULL, 0);
1395 ✗ if (!pkt->buf) {
1396 ✗ av_free(framep);
1397 ✗ fail:
1398 ✗ av_frame_free(&frame);
1399 ✗ return AVERROR(ENOMEM);
1400 }
1401 ✗ *framep = frame;
1402
1403 ✗ pkt->data = (void *)framep;
1404 ✗ pkt->size = sizeof(frame);
1405 ✗ pkt->pts =
1406 ✗ pkt->dts = frame->pts;
1407 ✗ pkt->duration = frame->duration;
1408 ✗ pkt->stream_index = stream_index;
1409 ✗ pkt->flags |= AV_PKT_FLAG_UNCODED_FRAME;
1410 }
1411
1412 ✗ return interleaved ? av_interleaved_write_frame(s, pkt) :
1413 ✗ av_write_frame(s, pkt);
1414 }
1415
1416 ✗ int av_write_uncoded_frame(AVFormatContext *s, int stream_index,
1417 AVFrame *frame)
1418 {
1419 ✗ return write_uncoded_frame_internal(s, stream_index, frame, 0);
1420 }
1421
1422 ✗ int av_interleaved_write_uncoded_frame(AVFormatContext *s, int stream_index,
1423 AVFrame *frame)
1424 {
1425 ✗ return write_uncoded_frame_internal(s, stream_index, frame, 1);
1426 }
1427
1428 ✗ int av_write_uncoded_frame_query(AVFormatContext *s, int stream_index)
1429 {
1430 ✗ const FFOutputFormat *const of = ffofmt(s->oformat);
1431 ✗ av_assert0(of);
1432 ✗ if (!of->write_uncoded_frame)
1433 ✗ return AVERROR(ENOSYS);
1434 ✗ return of->write_uncoded_frame(s, stream_index, NULL,
1435 AV_WRITE_UNCODED_FRAME_QUERY);
1436 }
1437