FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavformat/segment.c
Date: 2026-05-18 04:31:49
Exec Total Coverage
Lines: 325 577 56.3%
Functions: 13 18 72.2%
Branches: 177 421 42.0%
Line Branch Exec Source
1 /*
2 * Copyright (c) 2011, Luca Barbato
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 /**
22 * @file generic segmenter
23 * M3U8 specification can be find here:
24 * @url{http://tools.ietf.org/id/draft-pantos-http-live-streaming}
25 */
26
27 #include "config_components.h"
28
29 #include <time.h>
30
31 #include "avformat.h"
32 #include "internal.h"
33 #include "mux.h"
34
35 #include "libavutil/avassert.h"
36 #include "libavutil/internal.h"
37 #include "libavutil/log.h"
38 #include "libavutil/mem.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/avstring.h"
41 #include "libavutil/bprint.h"
42 #include "libavutil/parseutils.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/time.h"
45 #include "libavutil/timecode.h"
46 #include "libavutil/time_internal.h"
47 #include "libavutil/timestamp.h"
48
49 typedef struct SegmentListEntry {
50 int index;
51 double start_time, end_time;
52 int64_t start_pts;
53 int64_t offset_pts;
54 char *filename;
55 struct SegmentListEntry *next;
56 int64_t last_duration;
57 } SegmentListEntry;
58
59 typedef enum {
60 LIST_TYPE_UNDEFINED = -1,
61 LIST_TYPE_FLAT = 0,
62 LIST_TYPE_CSV,
63 LIST_TYPE_M3U8,
64 LIST_TYPE_EXT, ///< deprecated
65 LIST_TYPE_FFCONCAT,
66 LIST_TYPE_NB,
67 } ListType;
68
69 #define SEGMENT_LIST_FLAG_CACHE 1
70 #define SEGMENT_LIST_FLAG_LIVE 2
71
72 typedef struct SegmentContext {
73 const AVClass *class; /**< Class for private options. */
74 int segment_idx; ///< index of the segment file to write, starting from 0
75 int segment_idx_wrap; ///< number after which the index wraps
76 int segment_idx_wrap_nb; ///< number of time the index has wrapped
77 int segment_count; ///< number of segment files already written
78 const AVOutputFormat *oformat;
79 AVFormatContext *avf;
80 char *format; ///< format to use for output segment files
81 AVDictionary *format_options;
82 char *list; ///< filename for the segment list file
83 int list_flags; ///< flags affecting list generation
84 int list_size; ///< number of entries for the segment list file
85
86 int is_nullctx; ///< whether avf->pb is a nullctx
87 int use_clocktime; ///< flag to cut segments at regular clock time
88 int64_t clocktime_offset; //< clock offset for cutting the segments at regular clock time
89 int64_t clocktime_wrap_duration; //< wrapping duration considered for starting a new segment
90 int64_t last_val; ///< remember last time for wrap around detection
91 int cut_pending;
92 int header_written; ///< whether we've already called avformat_write_header
93
94 char *entry_prefix; ///< prefix to add to list entry filenames
95 int list_type; ///< set the list type
96 AVIOContext *list_pb; ///< list file put-byte context
97 int64_t time; ///< segment duration
98 int64_t min_seg_duration; ///< minimum segment duration
99 int use_strftime; ///< flag to expand filename with strftime
100 int increment_tc; ///< flag to increment timecode if found
101
102 char *times_str; ///< segment times specification string
103 int64_t *times; ///< list of segment interval specification
104 int nb_times; ///< number of elements in the times array
105
106 char *frames_str; ///< segment frame numbers specification string
107 int *frames; ///< list of frame number specification
108 int nb_frames; ///< number of elements in the frames array
109 int frame_count; ///< total number of reference frames
110 int segment_frame_count; ///< number of reference frames in the segment
111
112 int64_t time_delta;
113 int individual_header_trailer; /**< Set by a private option. */
114 int write_header_trailer; /**< Set by a private option. */
115 char *header_filename; ///< filename to write the output header to
116
117 int reset_timestamps; ///< reset timestamps at the beginning of each segment
118 int64_t initial_offset; ///< initial timestamps offset, expressed in microseconds
119 char *reference_stream_specifier; ///< reference stream specifier
120 int reference_stream_index;
121 int64_t reference_stream_first_pts; ///< initial timestamp, expressed in microseconds
122 int break_non_keyframes;
123 int write_empty;
124
125 int use_rename;
126 char *temp_list_filename;
127
128 SegmentListEntry cur_entry;
129 SegmentListEntry *segment_list_entries;
130 SegmentListEntry *segment_list_entries_end;
131 } SegmentContext;
132
133 ✗ static void print_csv_escaped_str(AVIOContext *ctx, const char *str)
134 {
135 ✗ int needs_quoting = !!str[strcspn(str, "\",\n\r")];
136
137 ✗ if (needs_quoting)
138 ✗ avio_w8(ctx, '"');
139
140 ✗ for (; *str; str++) {
141 ✗ if (*str == '"')
142 ✗ avio_w8(ctx, '"');
143 ✗ avio_w8(ctx, *str);
144 }
145 ✗ if (needs_quoting)
146 ✗ avio_w8(ctx, '"');
147 ✗ }
148
149 13 static int segment_mux_init(AVFormatContext *s)
150 {
151 13 SegmentContext *seg = s->priv_data;
152 AVFormatContext *oc;
153 int i;
154 int ret;
155
156 13 ret = avformat_alloc_output_context2(&seg->avf, seg->oformat, NULL, NULL);
157
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 13 times.
 13 if (ret < 0)
158 ✗ return ret;
159 13 oc = seg->avf;
160
161 13 oc->interrupt_callback = s->interrupt_callback;
162 13 oc->max_delay = s->max_delay;
163 13 av_dict_copy(&oc->metadata, s->metadata, 0);
164 13 oc->opaque = s->opaque;
165 13 oc->io_close2 = s->io_close2;
166 13 oc->io_open = s->io_open;
167 13 oc->flags = s->flags;
168
169
2/2
✓ Branch 0 taken 13 times.
✓ Branch 1 taken 13 times.
 26 for (i = 0; i < s->nb_streams; i++) {
170 13 AVStream *st, *ist = s->streams[i];
171 13 AVCodecParameters *ipar = ist->codecpar, *opar;
172
173 13 st = ff_stream_clone(oc, ist);
174
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 13 times.
 13 if (!st)
175 ✗ return AVERROR(ENOMEM);
176 13 opar = st->codecpar;
177
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 9 times.
 13 if (!oc->oformat->codec_tag ||
178
2/4
✓ Branch 1 taken 4 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✓ Branch 4 taken 4 times.
 8 av_codec_get_id (oc->oformat->codec_tag, ipar->codec_tag) == opar->codec_id ||
179 4 av_codec_get_tag(oc->oformat->codec_tag, ipar->codec_id) <= 0) {
180 9 opar->codec_tag = ipar->codec_tag;
181 } else {
182 4 opar->codec_tag = 0;
183 }
184 }
185
186
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 13 times.
 13 for (i = 0; i < s->nb_programs; i++) {
187 ✗ ret = av_program_copy(oc, (const AVFormatContext *)s, s->programs[i]->id, 0);
188 ✗ if (ret < 0) {
189 ✗ av_log(s, AV_LOG_ERROR, "unable to transfer program %d to child muxer\n", s->programs[i]->id);
190 ✗ return ret;
191 }
192 }
193
194 13 return 0;
195 }
196
197 15 static int set_segment_filename(AVFormatContext *s)
198 {
199 15 SegmentContext *seg = s->priv_data;
200 15 AVFormatContext *oc = seg->avf;
201 size_t size;
202 int ret;
203 AVBPrint filename;
204 char *new_name;
205
206 15 av_bprint_init(&filename, 0, AV_BPRINT_SIZE_UNLIMITED);
207
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 15 times.
 15 if (seg->segment_idx_wrap)
208 ✗ seg->segment_idx %= seg->segment_idx_wrap;
209
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 15 times.
 15 if (seg->use_strftime) {
210 time_t now0;
211 struct tm *tm, tmpbuf;
212 ✗ time(&now0);
213 ✗ tm = localtime_r(&now0, &tmpbuf);
214 ✗ av_bprint_strftime(&filename, s->url, tm);
215 ✗ if (!av_bprint_is_complete(&filename)) {
216 ✗ av_bprint_finalize(&filename, NULL);
217 ✗ return AVERROR(ENOMEM);
218 }
219 } else {
220 15 ret = ff_bprint_get_frame_filename(&filename, s->url, seg->segment_idx, 0);
221
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 15 times.
 15 if (ret < 0) {
222 ✗ av_bprint_finalize(&filename, NULL);
223 ✗ av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", s->url);
224 ✗ return ret;
225 }
226 }
227 15 ret = av_bprint_finalize(&filename, &new_name);
228
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 15 times.
 15 if (ret < 0)
229 ✗ return ret;
230 15 ff_format_set_url(oc, new_name);
231
232 /* copy modified name in list entry */
233 15 size = strlen(av_basename(oc->url)) + 1;
234
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 15 times.
 15 if (seg->entry_prefix)
235 ✗ size += strlen(seg->entry_prefix);
236
237
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 15 times.
 15 if ((ret = av_reallocp(&seg->cur_entry.filename, size)) < 0)
238 ✗ return ret;
239 15 snprintf(seg->cur_entry.filename, size, "%s%s",
240
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 15 times.
 15 seg->entry_prefix ? seg->entry_prefix : "",
241 15 av_basename(oc->url));
242
243 15 return 0;
244 }
245
246 10 static int segment_start(AVFormatContext *s, int write_header)
247 {
248 10 SegmentContext *seg = s->priv_data;
249 10 AVFormatContext *oc = seg->avf;
250 10 int err = 0;
251
252
2/2
✓ Branch 0 taken 8 times.
✓ Branch 1 taken 2 times.
 10 if (write_header) {
253 8 avformat_free_context(oc);
254 8 seg->avf = NULL;
255
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 8 times.
 8 if ((err = segment_mux_init(s)) < 0)
256 ✗ return err;
257 8 oc = seg->avf;
258 }
259
260 10 seg->segment_idx++;
261
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 10 if ((seg->segment_idx_wrap) && (seg->segment_idx % seg->segment_idx_wrap == 0))
262 ✗ seg->segment_idx_wrap_nb++;
263
264
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 10 times.
 10 if ((err = set_segment_filename(s)) < 0)
265 ✗ return err;
266
267
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 10 times.
 10 if ((err = s->io_open(s, &oc->pb, oc->url, AVIO_FLAG_WRITE, NULL)) < 0) {
268 ✗ av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", oc->url);
269 ✗ return err;
270 }
271
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
 10 if (!seg->individual_header_trailer)
272 2 oc->pb->seekable = 0;
273
274
2/4
✓ Branch 0 taken 10 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 10 times.
✗ Branch 3 not taken.
 10 if (oc->oformat->priv_class && oc->priv_data)
275 10 av_opt_set(oc->priv_data, "mpegts_flags", "+resend_headers", 0);
276
277
2/2
✓ Branch 0 taken 8 times.
✓ Branch 1 taken 2 times.
 10 if (write_header) {
278 8 AVDictionary *options = NULL;
279 8 av_dict_copy(&options, seg->format_options, 0);
280 8 av_dict_set(&options, "fflags", "-autobsf", 0);
281 8 err = avformat_write_header(oc, &options);
282 8 av_dict_free(&options);
283
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 8 times.
 8 if (err < 0)
284 ✗ return err;
285 }
286
287 10 seg->segment_frame_count = 0;
288 10 return 0;
289 }
290
291 12 static int segment_list_open(AVFormatContext *s)
292 {
293 12 SegmentContext *seg = s->priv_data;
294 int ret;
295
296 12 av_freep(&seg->temp_list_filename);
297
1/2
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
 12 seg->temp_list_filename = av_asprintf(seg->use_rename ? "%s.tmp" : "%s", seg->list);
298
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (!seg->temp_list_filename)
299 ✗ return AVERROR(ENOMEM);
300 12 ret = s->io_open(s, &seg->list_pb, seg->temp_list_filename, AVIO_FLAG_WRITE, NULL);
301
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (ret < 0) {
302 ✗ av_log(s, AV_LOG_ERROR, "Failed to open segment list '%s'\n", seg->list);
303 ✗ return ret;
304 }
305
306
2/4
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 12 times.
✗ Branch 3 not taken.
 24 if (seg->list_type == LIST_TYPE_M3U8 && seg->segment_list_entries) {
307 SegmentListEntry *entry;
308 12 double max_duration = 0;
309
310 12 avio_printf(seg->list_pb, "#EXTM3U\n");
311 12 avio_printf(seg->list_pb, "#EXT-X-VERSION:3\n");
312 12 avio_printf(seg->list_pb, "#EXT-X-MEDIA-SEQUENCE:%d\n", seg->segment_list_entries->index);
313 12 avio_printf(seg->list_pb, "#EXT-X-ALLOW-CACHE:%s\n",
314
1/2
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
 12 seg->list_flags & SEGMENT_LIST_FLAG_CACHE ? "YES" : "NO");
315
316 12 av_log(s, AV_LOG_VERBOSE, "EXT-X-MEDIA-SEQUENCE:%d\n",
317 12 seg->segment_list_entries->index);
318
319
2/2
✓ Branch 0 taken 27 times.
✓ Branch 1 taken 12 times.
 39 for (entry = seg->segment_list_entries; entry; entry = entry->next)
320
2/2
✓ Branch 0 taken 13 times.
✓ Branch 1 taken 14 times.
 27 max_duration = FFMAX(max_duration, entry->end_time - entry->start_time);
321 12 avio_printf(seg->list_pb, "#EXT-X-TARGETDURATION:%"PRId64"\n", (int64_t)ceil(max_duration));
322 ✗ } else if (seg->list_type == LIST_TYPE_FFCONCAT) {
323 ✗ avio_printf(seg->list_pb, "ffconcat version 1.0\n");
324 }
325
326 12 return ret;
327 }
328
329 27 static void segment_list_print_entry(AVIOContext *list_ioctx,
330 ListType list_type,
331 const SegmentListEntry *list_entry,
332 void *log_ctx)
333 {
334
1/5
✗ Branch 0 not taken.
✗ Branch 1 not taken.
✓ Branch 2 taken 27 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
 27 switch (list_type) {
335 ✗ case LIST_TYPE_FLAT:
336 ✗ avio_printf(list_ioctx, "%s\n", list_entry->filename);
337 ✗ break;
338 ✗ case LIST_TYPE_CSV:
339 case LIST_TYPE_EXT:
340 ✗ print_csv_escaped_str(list_ioctx, list_entry->filename);
341 ✗ avio_printf(list_ioctx, ",%f,%f\n", list_entry->start_time, list_entry->end_time);
342 ✗ break;
343 27 case LIST_TYPE_M3U8:
344 27 avio_printf(list_ioctx, "#EXTINF:%f,\n%s\n",
345 27 list_entry->end_time - list_entry->start_time, list_entry->filename);
346 27 break;
347 ✗ case LIST_TYPE_FFCONCAT:
348 {
349 char *buf;
350 ✗ if (av_escape(&buf, list_entry->filename, NULL, AV_ESCAPE_MODE_AUTO, AV_ESCAPE_FLAG_WHITESPACE) < 0) {
351 ✗ av_log(log_ctx, AV_LOG_WARNING,
352 ✗ "Error writing list entry '%s' in list file\n", list_entry->filename);
353 ✗ return;
354 }
355 ✗ avio_printf(list_ioctx, "file %s\n", buf);
356 ✗ av_free(buf);
357 ✗ break;
358 }
359 ✗ default:
360 ✗ av_assert0(!"Invalid list type");
361 }
362 }
363
364 15 static int segment_end(AVFormatContext *s, int write_trailer, int is_last)
365 {
366 15 SegmentContext *seg = s->priv_data;
367 15 AVFormatContext *oc = seg->avf;
368 15 int ret = 0;
369 AVTimecode tc;
370 AVRational rate;
371 AVDictionaryEntry *tcr;
372 char buf[AV_TIMECODE_STR_SIZE];
373 int i;
374 int err;
375
376
2/4
✓ Branch 0 taken 15 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 15 times.
 15 if (!oc || !oc->pb)
377 ✗ return AVERROR(EINVAL);
378
379 15 av_write_frame(oc, NULL); /* Flush any buffered data (fragmented mp4) */
380
2/2
✓ Branch 0 taken 13 times.
✓ Branch 1 taken 2 times.
 15 if (write_trailer)
381 13 ret = av_write_trailer(oc);
382
383
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 15 times.
 15 if (ret < 0)
384 ✗ av_log(s, AV_LOG_ERROR, "Failure occurred when ending segment '%s'\n",
385 oc->url);
386
387
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 3 times.
 15 if (seg->list) {
388
2/4
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 12 times.
✗ Branch 3 not taken.
 24 if (seg->list_size || seg->list_type == LIST_TYPE_M3U8) {
389 12 SegmentListEntry *entry = av_mallocz(sizeof(*entry));
390
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (!entry) {
391 ✗ ret = AVERROR(ENOMEM);
392 ✗ goto end;
393 }
394
395 /* append new element */
396 12 memcpy(entry, &seg->cur_entry, sizeof(*entry));
397 12 entry->filename = av_strdup(entry->filename);
398
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 8 times.
 12 if (!seg->segment_list_entries)
399 4 seg->segment_list_entries = seg->segment_list_entries_end = entry;
400 else
401 8 seg->segment_list_entries_end->next = entry;
402 12 seg->segment_list_entries_end = entry;
403
404 /* drop first item */
405
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 12 if (seg->list_size && seg->segment_count >= seg->list_size) {
406 ✗ entry = seg->segment_list_entries;
407 ✗ seg->segment_list_entries = seg->segment_list_entries->next;
408 ✗ av_freep(&entry->filename);
409 ✗ av_freep(&entry);
410 }
411
412
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 12 times.
 12 if ((ret = segment_list_open(s)) < 0)
413 ✗ goto end;
414
2/2
✓ Branch 0 taken 27 times.
✓ Branch 1 taken 12 times.
 39 for (entry = seg->segment_list_entries; entry; entry = entry->next)
415 27 segment_list_print_entry(seg->list_pb, seg->list_type, entry, s);
416
3/4
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 4 times.
✓ Branch 3 taken 8 times.
 12 if (seg->list_type == LIST_TYPE_M3U8 && is_last)
417 4 avio_printf(seg->list_pb, "#EXT-X-ENDLIST\n");
418 12 ff_format_io_close(s, &seg->list_pb);
419
1/2
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
 12 if (seg->use_rename)
420 12 ff_rename(seg->temp_list_filename, seg->list, s);
421 } else {
422 ✗ segment_list_print_entry(seg->list_pb, seg->list_type, &seg->cur_entry, s);
423 ✗ avio_flush(seg->list_pb);
424 }
425 }
426
427 15 av_log(s, AV_LOG_VERBOSE, "segment:'%s' count:%d ended\n",
428 15 seg->avf->url, seg->segment_count);
429 15 seg->segment_count++;
430
431
1/2
✓ Branch 0 taken 15 times.
✗ Branch 1 not taken.
 15 if (seg->increment_tc) {
432 ✗ tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
433 ✗ if (tcr) {
434 /* search the first video stream */
435 ✗ for (i = 0; i < s->nb_streams; i++) {
436 ✗ if (s->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
437 ✗ rate = s->streams[i]->avg_frame_rate;/* Get fps from the video stream */
438 ✗ err = av_timecode_init_from_string(&tc, rate, tcr->value, s);
439 ✗ if (err < 0) {
440 ✗ av_log(s, AV_LOG_WARNING, "Could not increment global timecode, error occurred during timecode creation.\n");
441 ✗ break;
442 }
443 ✗ tc.start += (int)((seg->cur_entry.end_time - seg->cur_entry.start_time) * av_q2d(rate));/* increment timecode */
444 ✗ av_dict_set(&s->metadata, "timecode",
445 ✗ av_timecode_make_string(&tc, buf, 0), 0);
446 ✗ break;
447 }
448 }
449 } else {
450 ✗ av_log(s, AV_LOG_WARNING, "Could not increment global timecode, no global timecode metadata found.\n");
451 }
452 ✗ for (i = 0; i < s->nb_streams; i++) {
453 ✗ if (s->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
454 char st_buf[AV_TIMECODE_STR_SIZE];
455 AVTimecode st_tc;
456 ✗ AVRational st_rate = s->streams[i]->avg_frame_rate;
457 ✗ AVDictionaryEntry *st_tcr = av_dict_get(s->streams[i]->metadata, "timecode", NULL, 0);
458 ✗ if (st_tcr) {
459 ✗ if ((av_timecode_init_from_string(&st_tc, st_rate, st_tcr->value, s) < 0)) {
460 ✗ av_log(s, AV_LOG_WARNING, "Could not increment stream %d timecode, error occurred during timecode creation.\n", i);
461 ✗ continue;
462 }
463 ✗ st_tc.start += (int)((seg->cur_entry.end_time - seg->cur_entry.start_time) * av_q2d(st_rate)); // increment timecode
464 ✗ av_dict_set(&s->streams[i]->metadata, "timecode", av_timecode_make_string(&st_tc, st_buf, 0), 0);
465 }
466 }
467 }
468 }
469
470 15 end:
471 15 ff_format_io_close(oc, &oc->pb);
472
473 15 return ret;
474 }
475
476 ✗ static int parse_times(void *log_ctx, int64_t **times, int *nb_times,
477 const char *times_str)
478 {
479 char *p;
480 ✗ int i, ret = 0;
481 ✗ char *times_str1 = av_strdup(times_str);
482 ✗ char *saveptr = NULL;
483
484 ✗ if (!times_str1)
485 ✗ return AVERROR(ENOMEM);
486
487 #define FAIL(err) ret = err; goto end
488
489 ✗ *nb_times = 1;
490 ✗ for (p = times_str1; *p; p++)
491 ✗ if (*p == ',')
492 ✗ (*nb_times)++;
493
494 ✗ *times = av_malloc_array(*nb_times, sizeof(**times));
495 ✗ if (!*times) {
496 ✗ av_log(log_ctx, AV_LOG_ERROR, "Could not allocate forced times array\n");
497 ✗ FAIL(AVERROR(ENOMEM));
498 }
499
500 ✗ p = times_str1;
501 ✗ for (i = 0; i < *nb_times; i++) {
502 int64_t t;
503 ✗ char *tstr = av_strtok(p, ",", &saveptr);
504 ✗ p = NULL;
505
506 ✗ if (!tstr || !tstr[0]) {
507 ✗ av_log(log_ctx, AV_LOG_ERROR, "Empty time specification in times list %s\n",
508 times_str);
509 ✗ FAIL(AVERROR(EINVAL));
510 }
511
512 ✗ ret = av_parse_time(&t, tstr, 1);
513 ✗ if (ret < 0) {
514 ✗ av_log(log_ctx, AV_LOG_ERROR,
515 "Invalid time duration specification '%s' in times list %s\n", tstr, times_str);
516 ✗ FAIL(AVERROR(EINVAL));
517 }
518 ✗ (*times)[i] = t;
519
520 /* check on monotonicity */
521 ✗ if (i && (*times)[i-1] > (*times)[i]) {
522 ✗ av_log(log_ctx, AV_LOG_ERROR,
523 "Specified time %f is smaller than the last time %f\n",
524 ✗ (float)((*times)[i])/1000000, (float)((*times)[i-1])/1000000);
525 ✗ FAIL(AVERROR(EINVAL));
526 }
527 }
528
529 ✗ end:
530 ✗ av_free(times_str1);
531 ✗ return ret;
532 }
533
534 ✗ static int parse_frames(void *log_ctx, int **frames, int *nb_frames,
535 const char *frames_str)
536 {
537 const char *p;
538 int i;
539
540 ✗ *nb_frames = 1;
541 ✗ for (p = frames_str; *p; p++)
542 ✗ if (*p == ',')
543 ✗ (*nb_frames)++;
544
545 ✗ *frames = av_malloc_array(*nb_frames, sizeof(**frames));
546 ✗ if (!*frames) {
547 ✗ av_log(log_ctx, AV_LOG_ERROR, "Could not allocate forced frames array\n");
548 ✗ return AVERROR(ENOMEM);
549 }
550
551 ✗ p = frames_str;
552 ✗ for (i = 0; i < *nb_frames; i++) {
553 long int f;
554 char *tailptr;
555
556 ✗ if (*p == '\0' || *p == ',') {
557 ✗ av_log(log_ctx, AV_LOG_ERROR, "Empty frame specification in frame list %s\n",
558 frames_str);
559 ✗ return AVERROR(EINVAL);
560 }
561 ✗ f = strtol(p, &tailptr, 10);
562 ✗ if (*tailptr != '\0' && *tailptr != ',' || f <= 0 || f >= INT_MAX) {
563 ✗ av_log(log_ctx, AV_LOG_ERROR,
564 "Invalid argument '%s', must be a positive integer < INT_MAX\n",
565 p);
566 ✗ return AVERROR(EINVAL);
567 }
568 ✗ if (*tailptr == ',')
569 ✗ tailptr++;
570 ✗ p = tailptr;
571 ✗ (*frames)[i] = f;
572
573 /* check on monotonicity */
574 ✗ if (i && (*frames)[i-1] > (*frames)[i]) {
575 ✗ av_log(log_ctx, AV_LOG_ERROR,
576 "Specified frame %d is smaller than the last frame %d\n",
577 ✗ (*frames)[i], (*frames)[i-1]);
578 ✗ return AVERROR(EINVAL);
579 }
580 }
581
582 ✗ return 0;
583 }
584
585 ✗ static int open_null_ctx(AVIOContext **ctx)
586 {
587 ✗ int buf_size = 32768;
588 ✗ uint8_t *buf = av_malloc(buf_size);
589 ✗ if (!buf)
590 ✗ return AVERROR(ENOMEM);
591 ✗ *ctx = avio_alloc_context(buf, buf_size, 1, NULL, NULL, NULL, NULL);
592 ✗ if (!*ctx) {
593 ✗ av_free(buf);
594 ✗ return AVERROR(ENOMEM);
595 }
596 ✗ return 0;
597 }
598
599 ✗ static void close_null_ctxp(AVIOContext **pb)
600 {
601 ✗ av_freep(&(*pb)->buffer);
602 ✗ avio_context_free(pb);
603 ✗ }
604
605 5 static int select_reference_stream(AVFormatContext *s)
606 {
607 5 SegmentContext *seg = s->priv_data;
608 int ret, i;
609
610 5 seg->reference_stream_index = -1;
611
1/2
✓ Branch 0 taken 5 times.
✗ Branch 1 not taken.
 5 if (!strcmp(seg->reference_stream_specifier, "auto")) {
612 /* select first index of type with highest priority */
613 int type_index_map[AVMEDIA_TYPE_NB];
614 static const enum AVMediaType type_priority_list[] = {
615 AVMEDIA_TYPE_VIDEO,
616 AVMEDIA_TYPE_AUDIO,
617 AVMEDIA_TYPE_SUBTITLE,
618 AVMEDIA_TYPE_DATA,
619 AVMEDIA_TYPE_ATTACHMENT
620 };
621 enum AVMediaType type;
622
623
2/2
✓ Branch 0 taken 25 times.
✓ Branch 1 taken 5 times.
 30 for (i = 0; i < AVMEDIA_TYPE_NB; i++)
624 25 type_index_map[i] = -1;
625
626 /* select first index for each type */
627
2/2
✓ Branch 0 taken 5 times.
✓ Branch 1 taken 5 times.
 10 for (i = 0; i < s->nb_streams; i++) {
628 5 type = s->streams[i]->codecpar->codec_type;
629
2/4
✓ Branch 0 taken 5 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 5 times.
✗ Branch 3 not taken.
 5 if ((unsigned)type < AVMEDIA_TYPE_NB && type_index_map[type] == -1
630 /* ignore attached pictures/cover art streams */
631
1/2
✓ Branch 0 taken 5 times.
✗ Branch 1 not taken.
 5 && !(s->streams[i]->disposition & AV_DISPOSITION_ATTACHED_PIC))
632 5 type_index_map[type] = i;
633 }
634
635
1/2
✓ Branch 0 taken 9 times.
✗ Branch 1 not taken.
 9 for (i = 0; i < FF_ARRAY_ELEMS(type_priority_list); i++) {
636 9 type = type_priority_list[i];
637
2/2
✓ Branch 0 taken 5 times.
✓ Branch 1 taken 4 times.
 9 if ((seg->reference_stream_index = type_index_map[type]) >= 0)
638 5 break;
639 }
640 } else {
641 ✗ for (i = 0; i < s->nb_streams; i++) {
642 ✗ ret = avformat_match_stream_specifier(s, s->streams[i],
643 ✗ seg->reference_stream_specifier);
644 ✗ if (ret < 0)
645 ✗ return ret;
646 ✗ if (ret > 0) {
647 ✗ seg->reference_stream_index = i;
648 ✗ break;
649 }
650 }
651 }
652
653
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if (seg->reference_stream_index < 0) {
654 ✗ av_log(s, AV_LOG_ERROR, "Could not select stream matching identifier '%s'\n",
655 seg->reference_stream_specifier);
656 ✗ return AVERROR(EINVAL);
657 }
658
659 5 return 0;
660 }
661
662 5 static void seg_free(AVFormatContext *s)
663 {
664 5 SegmentContext *seg = s->priv_data;
665 SegmentListEntry *cur;
666
667 5 ff_format_io_close(s, &seg->list_pb);
668
1/2
✓ Branch 0 taken 5 times.
✗ Branch 1 not taken.
 5 if (seg->avf) {
669
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if (seg->is_nullctx)
670 ✗ close_null_ctxp(&seg->avf->pb);
671 else
672 5 ff_format_io_close(s, &seg->avf->pb);
673 5 avformat_free_context(seg->avf);
674 5 seg->avf = NULL;
675 }
676 5 av_freep(&seg->times);
677 5 av_freep(&seg->frames);
678 5 av_freep(&seg->cur_entry.filename);
679 5 av_freep(&seg->temp_list_filename);
680
681 5 cur = seg->segment_list_entries;
682
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 5 times.
 17 while (cur) {
683 12 SegmentListEntry *next = cur->next;
684 12 av_freep(&cur->filename);
685 12 av_free(cur);
686 12 cur = next;
687 }
688 5 }
689
690 5 static int seg_init(AVFormatContext *s)
691 {
692 5 SegmentContext *seg = s->priv_data;
693 5 AVFormatContext *oc = seg->avf;
694 5 AVDictionary *options = NULL;
695 int ret;
696 int i;
697
698 5 seg->segment_count = 0;
699
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if (!seg->write_header_trailer)
700 ✗ seg->individual_header_trailer = 0;
701
702
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 4 times.
 5 if (seg->header_filename) {
703 1 seg->write_header_trailer = 1;
704 1 seg->individual_header_trailer = 0;
705 }
706
707
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if (seg->initial_offset > 0) {
708 ✗ av_log(s, AV_LOG_WARNING, "NOTE: the option initial_offset is deprecated,"
709 "you can use output_ts_offset instead of it\n");
710 }
711
712
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if ((seg->time != 2000000) + !!seg->times_str + !!seg->frames_str > 1) {
713 ✗ av_log(s, AV_LOG_ERROR,
714 "segment_time, segment_times, and segment_frames options "
715 "are mutually exclusive, select just one of them\n");
716 ✗ return AVERROR(EINVAL);
717 }
718
719
2/4
✓ Branch 0 taken 5 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 5 times.
 5 if (seg->times_str || seg->frames_str)
720 ✗ seg->min_seg_duration = 0;
721
722
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if (seg->times_str) {
723 ✗ if ((ret = parse_times(s, &seg->times, &seg->nb_times, seg->times_str)) < 0)
724 ✗ return ret;
725
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 } else if (seg->frames_str) {
726 ✗ if ((ret = parse_frames(s, &seg->frames, &seg->nb_frames, seg->frames_str)) < 0)
727 ✗ return ret;
728 } else {
729
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if (seg->use_clocktime) {
730 ✗ if (seg->time <= 0) {
731 ✗ av_log(s, AV_LOG_ERROR, "Invalid negative segment_time with segment_atclocktime option set\n");
732 ✗ return AVERROR(EINVAL);
733 }
734 ✗ seg->clocktime_offset = seg->time - (seg->clocktime_offset % seg->time);
735 }
736
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if (seg->min_seg_duration > seg->time) {
737 ✗ av_log(s, AV_LOG_ERROR, "min_seg_duration cannot be greater than segment_time\n");
738 ✗ return AVERROR(EINVAL);
739 }
740 }
741
742
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 1 times.
 5 if (seg->list) {
743
1/2
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
 4 if (seg->list_type == LIST_TYPE_UNDEFINED) {
744
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 4 times.
 4 if (av_match_ext(seg->list, "csv" )) seg->list_type = LIST_TYPE_CSV;
745
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 4 times.
 4 else if (av_match_ext(seg->list, "ext" )) seg->list_type = LIST_TYPE_EXT;
746
1/2
✓ Branch 1 taken 4 times.
✗ Branch 2 not taken.
 4 else if (av_match_ext(seg->list, "m3u8")) seg->list_type = LIST_TYPE_M3U8;
747 ✗ else if (av_match_ext(seg->list, "ffcat,ffconcat")) seg->list_type = LIST_TYPE_FFCONCAT;
748 ✗ else seg->list_type = LIST_TYPE_FLAT;
749 }
750
2/4
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 4 times.
 4 if (!seg->list_size && seg->list_type != LIST_TYPE_M3U8) {
751 ✗ if ((ret = segment_list_open(s)) < 0)
752 ✗ return ret;
753 } else {
754 4 const char *proto = avio_find_protocol_name(seg->list);
755
2/4
✓ Branch 0 taken 4 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 4 times.
✗ Branch 3 not taken.
 4 seg->use_rename = proto && !strcmp(proto, "file");
756 }
757 }
758
759
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if (seg->list_type == LIST_TYPE_EXT)
760 ✗ av_log(s, AV_LOG_WARNING, "'ext' list type option is deprecated in favor of 'csv'\n");
761
762
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 5 times.
 5 if ((ret = select_reference_stream(s)) < 0)
763 ✗ return ret;
764 5 av_log(s, AV_LOG_VERBOSE, "Selected stream id:%d type:%s\n",
765 seg->reference_stream_index,
766 5 av_get_media_type_string(s->streams[seg->reference_stream_index]->codecpar->codec_type));
767
768 5 seg->reference_stream_first_pts = AV_NOPTS_VALUE;
769
770 5 seg->oformat = av_guess_format(seg->format, s->url, NULL);
771
772
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if (!seg->oformat)
773 ✗ return AVERROR_MUXER_NOT_FOUND;
774
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if (seg->oformat->flags & AVFMT_NOFILE) {
775 ✗ av_log(s, AV_LOG_ERROR, "format %s not supported.\n",
776 ✗ seg->oformat->name);
777 ✗ return AVERROR(EINVAL);
778 }
779
780
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 5 times.
 5 if ((ret = segment_mux_init(s)) < 0)
781 ✗ return ret;
782
783
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 5 times.
 5 if ((ret = set_segment_filename(s)) < 0)
784 ✗ return ret;
785 5 oc = seg->avf;
786
787
1/2
✓ Branch 0 taken 5 times.
✗ Branch 1 not taken.
 5 if (seg->write_header_trailer) {
788
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 5 times.
 5 if ((ret = s->io_open(s, &oc->pb,
789
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 4 times.
 5 seg->header_filename ? seg->header_filename : oc->url,
790 AVIO_FLAG_WRITE, NULL)) < 0) {
791 ✗ av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", oc->url);
792 ✗ return ret;
793 }
794
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 4 times.
 5 if (!seg->individual_header_trailer)
795 1 oc->pb->seekable = 0;
796 } else {
797 ✗ if ((ret = open_null_ctx(&oc->pb)) < 0)
798 ✗ return ret;
799 ✗ seg->is_nullctx = 1;
800 }
801
802 5 av_dict_copy(&options, seg->format_options, 0);
803 5 av_dict_set(&options, "fflags", "-autobsf", 0);
804 5 ret = avformat_init_output(oc, &options);
805
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 5 times.
 5 if (av_dict_count(options)) {
806 ✗ av_log(s, AV_LOG_ERROR,
807 "Some of the provided format options are not recognized\n");
808 ✗ av_dict_free(&options);
809 ✗ return AVERROR(EINVAL);
810 }
811 5 av_dict_free(&options);
812
813
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if (ret < 0) {
814 ✗ return ret;
815 }
816 5 seg->segment_frame_count = 0;
817
818
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 av_assert0(s->nb_streams == oc->nb_streams);
819
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if (ret == AVSTREAM_INIT_IN_WRITE_HEADER) {
820 ✗ ret = avformat_write_header(oc, NULL);
821 ✗ if (ret < 0)
822 ✗ return ret;
823 ✗ seg->header_written = 1;
824 }
825
826
2/2
✓ Branch 0 taken 5 times.
✓ Branch 1 taken 5 times.
 10 for (i = 0; i < s->nb_streams; i++) {
827 5 AVStream *inner_st = oc->streams[i];
828 5 AVStream *outer_st = s->streams[i];
829 5 avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
830 }
831
832
2/4
✓ Branch 0 taken 5 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 5 times.
✗ Branch 3 not taken.
 5 if (oc->avoid_negative_ts > 0 && s->avoid_negative_ts < 0)
833 5 s->avoid_negative_ts = 1;
834
835 5 return ret;
836 }
837
838 5 static int seg_write_header(AVFormatContext *s)
839 {
840 5 SegmentContext *seg = s->priv_data;
841 5 AVFormatContext *oc = seg->avf;
842 int ret;
843
844
1/2
✓ Branch 0 taken 5 times.
✗ Branch 1 not taken.
 5 if (!seg->header_written) {
845 5 ret = avformat_write_header(oc, NULL);
846
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if (ret < 0)
847 ✗ return ret;
848 }
849
850
3/4
✓ Branch 0 taken 5 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 1 times.
✓ Branch 3 taken 4 times.
 5 if (!seg->write_header_trailer || seg->header_filename) {
851
1/2
✓ Branch 0 taken 1 times.
✗ Branch 1 not taken.
 1 if (seg->header_filename) {
852 1 av_write_frame(oc, NULL);
853 1 ff_format_io_close(oc, &oc->pb);
854 } else {
855 ✗ close_null_ctxp(&oc->pb);
856 ✗ seg->is_nullctx = 0;
857 }
858
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 1 times.
 1 if ((ret = oc->io_open(oc, &oc->pb, oc->url, AVIO_FLAG_WRITE, NULL)) < 0)
859 ✗ return ret;
860
1/2
✓ Branch 0 taken 1 times.
✗ Branch 1 not taken.
 1 if (!seg->individual_header_trailer)
861 1 oc->pb->seekable = 0;
862 }
863
864 5 return 0;
865 }
866
867 1726 static int seg_write_packet(AVFormatContext *s, AVPacket *pkt)
868 {
869 1726 SegmentContext *seg = s->priv_data;
870 1726 AVStream *st = s->streams[pkt->stream_index];
871 1726 int64_t end_pts = INT64_MAX, offset, pkt_pts_avtb;
872 1726 int start_frame = INT_MAX;
873 int ret;
874 struct tm ti;
875 int64_t usecs;
876 int64_t wrapped_val;
877
878
2/4
✓ Branch 0 taken 1726 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 1726 times.
 1726 if (!seg->avf || !seg->avf->pb)
879 ✗ return AVERROR(EINVAL);
880
881
2/2
✓ Branch 0 taken 194 times.
✓ Branch 1 taken 1532 times.
 1726 if (!st->codecpar->extradata_size) {
882 size_t pkt_extradata_size;
883 1532 uint8_t *pkt_extradata = av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, &pkt_extradata_size);
884
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 1532 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 1532 if (pkt_extradata && pkt_extradata_size > 0) {
885 ✗ ret = ff_alloc_extradata(st->codecpar, pkt_extradata_size);
886 ✗ if (ret < 0) {
887 ✗ av_log(s, AV_LOG_WARNING, "Unable to add extradata to stream. Output segments may be invalid.\n");
888 ✗ goto calc_times;
889 }
890 ✗ memcpy(st->codecpar->extradata, pkt_extradata, pkt_extradata_size);
891 }
892 }
893
894 1726 calc_times:
895
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1726 times.
 1726 if (seg->times) {
896 ✗ end_pts = seg->segment_count < seg->nb_times ?
897 ✗ seg->times[seg->segment_count] : INT64_MAX;
898
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1726 times.
 1726 } else if (seg->frames) {
899 ✗ start_frame = seg->segment_count < seg->nb_frames ?
900 ✗ seg->frames[seg->segment_count] : INT_MAX;
901 } else {
902
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1726 times.
 1726 if (seg->use_clocktime) {
903 ✗ int64_t avgt = av_gettime();
904 ✗ time_t sec = avgt / 1000000;
905 ✗ localtime_r(&sec, &ti);
906 ✗ usecs = (int64_t)(ti.tm_hour * 3600 + ti.tm_min * 60 + ti.tm_sec) * 1000000 + (avgt % 1000000);
907 ✗ wrapped_val = (usecs + seg->clocktime_offset) % seg->time;
908 ✗ if (wrapped_val < seg->last_val && wrapped_val < seg->clocktime_wrap_duration)
909 ✗ seg->cut_pending = 1;
910 ✗ seg->last_val = wrapped_val;
911 } else {
912 1726 end_pts = seg->time * (seg->segment_count + 1);
913 }
914 }
915
916 ff_dlog(s, "packet stream:%d pts:%s pts_time:%s duration_time:%s is_key:%d frame:%d\n",
917 pkt->stream_index, av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &st->time_base),
918 av_ts2timestr(pkt->duration, &st->time_base),
919 pkt->flags & AV_PKT_FLAG_KEY,
920 pkt->stream_index == seg->reference_stream_index ? seg->frame_count : -1);
921
922
2/2
✓ Branch 0 taken 5 times.
✓ Branch 1 taken 1721 times.
 1726 if (seg->reference_stream_first_pts == AV_NOPTS_VALUE &&
923
1/2
✓ Branch 0 taken 5 times.
✗ Branch 1 not taken.
 5 pkt->stream_index == seg->reference_stream_index &&
924
1/2
✓ Branch 0 taken 5 times.
✗ Branch 1 not taken.
 5 pkt->pts != AV_NOPTS_VALUE) {
925 5 seg->reference_stream_first_pts = av_rescale_q(pkt->pts, st->time_base, AV_TIME_BASE_Q);
926 }
927
928
1/2
✓ Branch 0 taken 1726 times.
✗ Branch 1 not taken.
 1726 if (seg->reference_stream_first_pts != AV_NOPTS_VALUE) {
929 1726 end_pts += (INT64_MAX - end_pts >= seg->reference_stream_first_pts) ?
930 1726 seg->reference_stream_first_pts :
931 INT64_MAX - end_pts;
932 }
933
934
1/2
✓ Branch 0 taken 1726 times.
✗ Branch 1 not taken.
 1726 if (pkt->pts != AV_NOPTS_VALUE)
935 1726 pkt_pts_avtb = av_rescale_q(pkt->pts, st->time_base, AV_TIME_BASE_Q);
936
937
1/2
✓ Branch 0 taken 1726 times.
✗ Branch 1 not taken.
 1726 if (pkt->stream_index == seg->reference_stream_index &&
938
3/4
✓ Branch 0 taken 120 times.
✓ Branch 1 taken 1606 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 120 times.
 1726 (pkt->flags & AV_PKT_FLAG_KEY || seg->break_non_keyframes) &&
939
3/4
✓ Branch 0 taken 5 times.
✓ Branch 1 taken 1601 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 5 times.
 1606 (seg->segment_frame_count > 0 || seg->write_empty) &&
940
2/4
✓ Branch 0 taken 1601 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 1601 times.
✗ Branch 3 not taken.
 1601 (seg->cut_pending || seg->frame_count >= start_frame ||
941
1/2
✓ Branch 0 taken 1601 times.
✗ Branch 1 not taken.
 1601 (pkt->pts != AV_NOPTS_VALUE &&
942
3/4
✓ Branch 0 taken 1601 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 10 times.
✓ Branch 3 taken 1591 times.
 3202 pkt_pts_avtb - seg->cur_entry.start_pts >= seg->min_seg_duration &&
943 1601 av_compare_ts(pkt->pts, st->time_base,
944 1601 end_pts - seg->time_delta, AV_TIME_BASE_Q) >= 0))) {
945 /* sanitize end time in case last packet didn't have a defined duration */
946
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
 10 if (seg->cur_entry.last_duration == 0)
947 ✗ seg->cur_entry.end_time = (double)pkt->pts * av_q2d(st->time_base);
948
949
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 10 times.
 10 if ((ret = segment_end(s, seg->individual_header_trailer, 0)) < 0)
950 ✗ goto fail;
951
952
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 10 times.
 10 if ((ret = segment_start(s, seg->individual_header_trailer)) < 0)
953 ✗ goto fail;
954
955 10 seg->cut_pending = 0;
956 10 seg->cur_entry.index = seg->segment_idx + seg->segment_idx_wrap * seg->segment_idx_wrap_nb;
957 10 seg->cur_entry.start_time = (double)pkt->pts * av_q2d(st->time_base);
958 10 seg->cur_entry.start_pts = av_rescale_q(pkt->pts, st->time_base, AV_TIME_BASE_Q);
959 10 seg->cur_entry.end_time = seg->cur_entry.start_time;
960
961
4/8
✓ Branch 0 taken 10 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 10 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 10 times.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✓ Branch 7 taken 10 times.
 10 if (seg->times || (!seg->frames && !seg->use_clocktime) && seg->write_empty)
962 ✗ goto calc_times;
963 }
964
965
1/2
✓ Branch 0 taken 1726 times.
✗ Branch 1 not taken.
 1726 if (pkt->stream_index == seg->reference_stream_index) {
966
1/2
✓ Branch 0 taken 1726 times.
✗ Branch 1 not taken.
 1726 if (pkt->pts != AV_NOPTS_VALUE)
967 1726 seg->cur_entry.end_time =
968
2/2
✓ Branch 1 taken 91 times.
✓ Branch 2 taken 1635 times.
 1726 FFMAX(seg->cur_entry.end_time, (double)(pkt->pts + pkt->duration) * av_q2d(st->time_base));
969 1726 seg->cur_entry.last_duration = pkt->duration;
970 }
971
972
2/2
✓ Branch 0 taken 15 times.
✓ Branch 1 taken 1711 times.
 1726 if (seg->segment_frame_count == 0) {
973 45 av_log(s, AV_LOG_VERBOSE, "segment:'%s' starts with packet stream:%d pts:%s pts_time:%s frame:%d\n",
974 15 seg->avf->url, pkt->stream_index,
975 15 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &st->time_base), seg->frame_count);
976 }
977
978 1726 av_log(s, AV_LOG_DEBUG, "stream:%d start_pts_time:%s pts:%s pts_time:%s dts:%s dts_time:%s",
979 pkt->stream_index,
980 1726 av_ts2timestr(seg->cur_entry.start_pts, &AV_TIME_BASE_Q),
981 1726 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &st->time_base),
982 1726 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &st->time_base));
983
984 /* compute new timestamps */
985 1726 offset = av_rescale_q(seg->initial_offset - (seg->reset_timestamps ? seg->cur_entry.start_pts : 0),
986
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1726 times.
 1726 AV_TIME_BASE_Q, st->time_base);
987
1/2
✓ Branch 0 taken 1726 times.
✗ Branch 1 not taken.
 1726 if (pkt->pts != AV_NOPTS_VALUE)
988 1726 pkt->pts += offset;
989
1/2
✓ Branch 0 taken 1726 times.
✗ Branch 1 not taken.
 1726 if (pkt->dts != AV_NOPTS_VALUE)
990 1726 pkt->dts += offset;
991
992 1726 av_log(s, AV_LOG_DEBUG, " -> pts:%s pts_time:%s dts:%s dts_time:%s\n",
993 1726 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &st->time_base),
994 1726 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &st->time_base));
995
996 1726 ret = ff_write_chained(seg->avf, pkt->stream_index, pkt, s,
997
2/4
✓ Branch 0 taken 1726 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 1726 times.
✗ Branch 3 not taken.
 1726 seg->initial_offset || seg->reset_timestamps ||
998
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 1726 times.
 1726 ffofmt(seg->avf->oformat)->interleave_packet);
999
1000 1726 fail:
1001 /* Use st->index here as the packet returned from ff_write_chained()
1002 * is blank if interleaving has been used. */
1003
1/2
✓ Branch 0 taken 1726 times.
✗ Branch 1 not taken.
 1726 if (st->index == seg->reference_stream_index) {
1004 1726 seg->frame_count++;
1005 1726 seg->segment_frame_count++;
1006 }
1007
1008 1726 return ret;
1009 }
1010
1011 5 static int seg_write_trailer(struct AVFormatContext *s)
1012 {
1013 5 SegmentContext *seg = s->priv_data;
1014 5 AVFormatContext *oc = seg->avf;
1015 int ret;
1016
1017
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if (!oc)
1018 ✗ return 0;
1019
1020
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
 5 if (!seg->write_header_trailer) {
1021 ✗ if ((ret = segment_end(s, 0, 1)) < 0)
1022 ✗ return ret;
1023 ✗ if ((ret = open_null_ctx(&oc->pb)) < 0)
1024 ✗ return ret;
1025 ✗ seg->is_nullctx = 1;
1026 ✗ ret = av_write_trailer(oc);
1027 } else {
1028 5 ret = segment_end(s, 1, 1);
1029 }
1030 5 return ret;
1031 }
1032
1033 5 static int seg_check_bitstream(AVFormatContext *s, AVStream *st,
1034 const AVPacket *pkt)
1035 {
1036 5 SegmentContext *seg = s->priv_data;
1037 5 AVFormatContext *oc = seg->avf;
1038
1/2
✓ Branch 1 taken 5 times.
✗ Branch 2 not taken.
 5 if (ffofmt(oc->oformat)->check_bitstream) {
1039 5 AVStream *const ost = oc->streams[st->index];
1040 5 int ret = ffofmt(oc->oformat)->check_bitstream(oc, ost, pkt);
1041
1/2
✓ Branch 0 taken 5 times.
✗ Branch 1 not taken.
 5 if (ret == 1) {
1042 5 FFStream *const sti = ffstream(st);
1043 5 FFStream *const osti = ffstream(ost);
1044 5 sti->bsfc = osti->bsfc;
1045 5 osti->bsfc = NULL;
1046 }
1047 5 return ret;
1048 }
1049 ✗ return 1;
1050 }
1051
1052 #define OFFSET(x) offsetof(SegmentContext, x)
1053 #define E AV_OPT_FLAG_ENCODING_PARAM
1054 static const AVOption options[] = {
1055 { "reference_stream", "set reference stream", OFFSET(reference_stream_specifier), AV_OPT_TYPE_STRING, {.str = "auto"}, 0, 0, E },
1056 { "segment_format", "set container format used for the segments", OFFSET(format), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E },
1057 { "segment_format_options", "set list of options for the container format used for the segments", OFFSET(format_options), AV_OPT_TYPE_DICT, {.str = NULL}, 0, 0, E },
1058 { "segment_list", "set the segment list filename", OFFSET(list), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E },
1059 { "segment_header_filename", "write a single file containing the header", OFFSET(header_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E },
1060
1061 { "segment_list_flags","set flags affecting segment list generation", OFFSET(list_flags), AV_OPT_TYPE_FLAGS, {.i64 = SEGMENT_LIST_FLAG_CACHE }, 0, UINT_MAX, E, .unit = "list_flags"},
1062 { "cache", "allow list caching", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_LIST_FLAG_CACHE }, INT_MIN, INT_MAX, E, .unit = "list_flags"},
1063 { "live", "enable live-friendly list generation (useful for HLS)", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_LIST_FLAG_LIVE }, INT_MIN, INT_MAX, E, .unit = "list_flags"},
1064
1065 { "segment_list_size", "set the maximum number of playlist entries", OFFSET(list_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E },
1066
1067 { "segment_list_type", "set the segment list type", OFFSET(list_type), AV_OPT_TYPE_INT, {.i64 = LIST_TYPE_UNDEFINED}, -1, LIST_TYPE_NB-1, E, .unit = "list_type" },
1068 { "flat", "flat format", 0, AV_OPT_TYPE_CONST, {.i64=LIST_TYPE_FLAT }, INT_MIN, INT_MAX, E, .unit = "list_type" },
1069 { "csv", "csv format", 0, AV_OPT_TYPE_CONST, {.i64=LIST_TYPE_CSV }, INT_MIN, INT_MAX, E, .unit = "list_type" },
1070 { "ext", "extended format", 0, AV_OPT_TYPE_CONST, {.i64=LIST_TYPE_EXT }, INT_MIN, INT_MAX, E, .unit = "list_type" },
1071 { "ffconcat", "ffconcat format", 0, AV_OPT_TYPE_CONST, {.i64=LIST_TYPE_FFCONCAT }, INT_MIN, INT_MAX, E, .unit = "list_type" },
1072 { "m3u8", "M3U8 format", 0, AV_OPT_TYPE_CONST, {.i64=LIST_TYPE_M3U8 }, INT_MIN, INT_MAX, E, .unit = "list_type" },
1073 { "hls", "Apple HTTP Live Streaming compatible", 0, AV_OPT_TYPE_CONST, {.i64=LIST_TYPE_M3U8 }, INT_MIN, INT_MAX, E, .unit = "list_type" },
1074
1075 { "segment_atclocktime", "set segment to be cut at clocktime", OFFSET(use_clocktime), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E},
1076 { "segment_clocktime_offset", "set segment clocktime offset", OFFSET(clocktime_offset), AV_OPT_TYPE_DURATION, {.i64 = 0}, 0, 86400000000LL, E},
1077 { "segment_clocktime_wrap_duration", "set segment clocktime wrapping duration", OFFSET(clocktime_wrap_duration), AV_OPT_TYPE_DURATION, {.i64 = INT64_MAX}, 0, INT64_MAX, E},
1078 { "segment_time", "set segment duration", OFFSET(time),AV_OPT_TYPE_DURATION, {.i64 = 2000000}, INT64_MIN, INT64_MAX, E },
1079 { "segment_time_delta","set approximation value used for the segment times", OFFSET(time_delta), AV_OPT_TYPE_DURATION, {.i64 = 0}, 0, INT64_MAX, E },
1080 { "min_seg_duration", "set minimum segment duration", OFFSET(min_seg_duration), AV_OPT_TYPE_DURATION, {.i64 = 0}, 0, INT64_MAX, E },
1081 { "segment_times", "set segment split time points", OFFSET(times_str),AV_OPT_TYPE_STRING,{.str = NULL}, 0, 0, E },
1082 { "segment_frames", "set segment split frame numbers", OFFSET(frames_str),AV_OPT_TYPE_STRING,{.str = NULL}, 0, 0, E },
1083 { "segment_wrap", "set number after which the index wraps", OFFSET(segment_idx_wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E },
1084 { "segment_list_entry_prefix", "set base url prefix for segments", OFFSET(entry_prefix), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E },
1085 { "segment_start_number", "set the sequence number of the first segment", OFFSET(segment_idx), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E },
1086 { "segment_wrap_number", "set the number of wrap before the first segment", OFFSET(segment_idx_wrap_nb), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E },
1087 { "strftime", "set filename expansion with strftime at segment creation", OFFSET(use_strftime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
1088 { "increment_tc", "increment timecode between each segment", OFFSET(increment_tc), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
1089 { "break_non_keyframes", "allow breaking segments on non-keyframes", OFFSET(break_non_keyframes), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E },
1090
1091 { "individual_header_trailer", "write header/trailer to each segment", OFFSET(individual_header_trailer), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, E },
1092 { "write_header_trailer", "write a header to the first segment and a trailer to the last one", OFFSET(write_header_trailer), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, E },
1093 { "reset_timestamps", "reset timestamps at the beginning of each segment", OFFSET(reset_timestamps), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E },
1094 { "initial_offset", "set initial timestamp offset", OFFSET(initial_offset), AV_OPT_TYPE_DURATION, {.i64 = 0}, -INT64_MAX, INT64_MAX, E },
1095 { "write_empty_segments", "allow writing empty 'filler' segments", OFFSET(write_empty), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E },
1096 { NULL },
1097 };
1098
1099 static const AVClass seg_class = {
1100 .class_name = "(stream) segment muxer",
1101 .item_name = av_default_item_name,
1102 .option = options,
1103 .version = LIBAVUTIL_VERSION_INT,
1104 };
1105
1106 #if CONFIG_SEGMENT_MUXER
1107 const FFOutputFormat ff_segment_muxer = {
1108 .p.name = "segment",
1109 .p.long_name = NULL_IF_CONFIG_SMALL("segment"),
1110 .p.flags = AVFMT_NOFILE|AVFMT_GLOBALHEADER,
1111 .p.priv_class = &seg_class,
1112 .priv_data_size = sizeof(SegmentContext),
1113 .init = seg_init,
1114 .write_header = seg_write_header,
1115 .write_packet = seg_write_packet,
1116 .write_trailer = seg_write_trailer,
1117 .deinit = seg_free,
1118 .check_bitstream = seg_check_bitstream,
1119 };
1120 #endif
1121
1122 #if CONFIG_STREAM_SEGMENT_MUXER
1123 const FFOutputFormat ff_stream_segment_muxer = {
1124 .p.name = "stream_segment,ssegment",
1125 .p.long_name = NULL_IF_CONFIG_SMALL("streaming segment muxer"),
1126 .p.flags = AVFMT_NOFILE,
1127 .p.priv_class = &seg_class,
1128 .priv_data_size = sizeof(SegmentContext),
1129 .init = seg_init,
1130 .write_header = seg_write_header,
1131 .write_packet = seg_write_packet,
1132 .write_trailer = seg_write_trailer,
1133 .deinit = seg_free,
1134 .check_bitstream = seg_check_bitstream,
1135 };
1136 #endif
1137