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hlsenc.c
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1 /*
2  * Apple HTTP Live Streaming segmenter
3  * Copyright (c) 2012, Luca Barbato
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 "config.h"
23 #include <float.h>
24 #include <stdint.h>
25 #if HAVE_UNISTD_H
26 #include <unistd.h>
27 #endif
28 
29 #if CONFIG_GCRYPT
30 #include <gcrypt.h>
31 #elif CONFIG_OPENSSL
32 #include <openssl/rand.h>
33 #endif
34 
35 #include "libavutil/avassert.h"
36 #include "libavutil/mathematics.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/avstring.h"
39 #include "libavutil/intreadwrite.h"
40 #include "libavutil/random_seed.h"
41 #include "libavutil/opt.h"
42 #include "libavutil/log.h"
44 
45 #include "avformat.h"
46 #include "avio_internal.h"
47 #include "internal.h"
48 #include "os_support.h"
49 
50 typedef enum {
55 
56 #define KEYSIZE 16
57 #define LINE_BUFFER_SIZE 1024
58 #define HLS_MICROSECOND_UNIT 1000000
59 
60 typedef struct HLSSegment {
61  char filename[1024];
62  char sub_filename[1024];
63  double duration; /* in seconds */
64  int discont;
65  int64_t pos;
66  int64_t size;
67 
69  char iv_string[KEYSIZE*2 + 1];
70 
71  struct HLSSegment *next;
72 } HLSSegment;
73 
74 typedef enum HLSFlags {
75  // Generate a single media file and use byte ranges in the playlist.
76  HLS_SINGLE_FILE = (1 << 0),
77  HLS_DELETE_SEGMENTS = (1 << 1),
78  HLS_ROUND_DURATIONS = (1 << 2),
79  HLS_DISCONT_START = (1 << 3),
80  HLS_OMIT_ENDLIST = (1 << 4),
81  HLS_SPLIT_BY_TIME = (1 << 5),
82  HLS_APPEND_LIST = (1 << 6),
84  HLS_SECOND_LEVEL_SEGMENT_INDEX = (1 << 8), // include segment index in segment filenames when use_localtime e.g.: %%03d
85  HLS_SECOND_LEVEL_SEGMENT_DURATION = (1 << 9), // include segment duration (microsec) in segment filenames when use_localtime e.g.: %%09t
86  HLS_SECOND_LEVEL_SEGMENT_SIZE = (1 << 10), // include segment size (bytes) in segment filenames when use_localtime e.g.: %%014s
87  HLS_TEMP_FILE = (1 << 11),
88 } HLSFlags;
89 
90 typedef enum {
93 } SegmentType;
94 
95 typedef enum {
100 } PlaylistType;
101 
102 typedef struct HLSContext {
103  const AVClass *class; // Class for private options.
104  unsigned number;
105  int64_t sequence;
106  int64_t start_sequence;
107  uint32_t start_sequence_source_type; // enum StartSequenceSourceType
110 
113 
114  float time; // Set by a private option.
115  float init_time; // Set by a private option.
116  int max_nb_segments; // Set by a private option.
117 #if FF_API_HLS_WRAP
118  int wrap; // Set by a private option.
119 #endif
120  uint32_t flags; // enum HLSFlags
121  uint32_t pl_type; // enum PlaylistType
126 
127  int use_localtime; ///< flag to expand filename with localtime
128  int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
130  int64_t recording_time;
134  double dpp; // duration per packet
135  int64_t start_pts;
136  int64_t end_pts;
137  double duration; // last segment duration computed so far, in seconds
138  int64_t start_pos; // last segment starting position
139  int64_t size; // last segment size
140  int64_t max_seg_size; // every segment file max size
144 
148 
149  char *basename;
153  char *baseurl;
158 
159  int encrypt;
160  char *key;
161  char *key_url;
162  char *iv;
164 
168  char key_string[KEYSIZE*2 + 1];
169  char iv_string[KEYSIZE*2 + 1];
171 
172  char *method;
173 
175  char current_segment_final_filename_fmt[1024]; // when renaming segments
176 } HLSContext;
177 
178 static int get_int_from_double(double val)
179 {
180  return (int)((val - (int)val) >= 0.001) ? (int)(val + 1) : (int)val;
181 }
182 
183 static int mkdir_p(const char *path) {
184  int ret = 0;
185  char *temp = av_strdup(path);
186  char *pos = temp;
187  char tmp_ch = '\0';
188 
189  if (!path || !temp) {
190  return -1;
191  }
192 
193  if (!strncmp(temp, "/", 1) || !strncmp(temp, "\\", 1)) {
194  pos++;
195  } else if (!strncmp(temp, "./", 2) || !strncmp(temp, ".\\", 2)) {
196  pos += 2;
197  }
198 
199  for ( ; *pos != '\0'; ++pos) {
200  if (*pos == '/' || *pos == '\\') {
201  tmp_ch = *pos;
202  *pos = '\0';
203  ret = mkdir(temp, 0755);
204  *pos = tmp_ch;
205  }
206  }
207 
208  if ((*(pos - 1) != '/') || (*(pos - 1) != '\\')) {
209  ret = mkdir(temp, 0755);
210  }
211 
212  av_free(temp);
213  return ret;
214 }
215 
216 static int replace_int_data_in_filename(char *buf, int buf_size, const char *filename, char placeholder, int64_t number)
217 {
218  const char *p;
219  char *q, buf1[20], c;
220  int nd, len, addchar_count;
221  int found_count = 0;
222 
223  q = buf;
224  p = filename;
225  for (;;) {
226  c = *p;
227  if (c == '\0')
228  break;
229  if (c == '%' && *(p+1) == '%') // %%
230  addchar_count = 2;
231  else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) {
232  nd = 0;
233  addchar_count = 1;
234  while (av_isdigit(*(p + addchar_count))) {
235  nd = nd * 10 + *(p + addchar_count) - '0';
236  addchar_count++;
237  }
238 
239  if (*(p + addchar_count) == placeholder) {
240  len = snprintf(buf1, sizeof(buf1), "%0*"PRId64, (number < 0) ? nd : nd++, number);
241  if (len < 1) // returned error or empty buf1
242  goto fail;
243  if ((q - buf + len) > buf_size - 1)
244  goto fail;
245  memcpy(q, buf1, len);
246  q += len;
247  p += (addchar_count + 1);
248  addchar_count = 0;
249  found_count++;
250  }
251 
252  } else
253  addchar_count = 1;
254 
255  while (addchar_count--)
256  if ((q - buf) < buf_size - 1)
257  *q++ = *p++;
258  else
259  goto fail;
260  }
261  *q = '\0';
262  return found_count;
263 fail:
264  *q = '\0';
265  return -1;
266 }
267 
268 static void write_styp(AVIOContext *pb)
269 {
270  avio_wb32(pb, 24);
271  ffio_wfourcc(pb, "styp");
272  ffio_wfourcc(pb, "msdh");
273  avio_wb32(pb, 0); /* minor */
274  ffio_wfourcc(pb, "msdh");
275  ffio_wfourcc(pb, "msix");
276 }
277 
279 
280  HLSSegment *segment, *previous_segment = NULL;
281  float playlist_duration = 0.0f;
282  int ret = 0, path_size, sub_path_size;
283  char *dirname = NULL, *p, *sub_path;
284  char *path = NULL;
286  AVIOContext *out = NULL;
287  const char *proto = NULL;
288 
289  segment = hls->segments;
290  while (segment) {
291  playlist_duration += segment->duration;
292  segment = segment->next;
293  }
294 
295  segment = hls->old_segments;
296  while (segment) {
297  playlist_duration -= segment->duration;
298  previous_segment = segment;
299  segment = previous_segment->next;
300  if (playlist_duration <= -previous_segment->duration) {
301  previous_segment->next = NULL;
302  break;
303  }
304  }
305 
306  if (segment && !hls->use_localtime_mkdir) {
307  if (hls->segment_filename) {
308  dirname = av_strdup(hls->segment_filename);
309  } else {
310  dirname = av_strdup(hls->avf->filename);
311  }
312  if (!dirname) {
313  ret = AVERROR(ENOMEM);
314  goto fail;
315  }
316  p = (char *)av_basename(dirname);
317  *p = '\0';
318  }
319 
320  while (segment) {
321  av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n",
322  segment->filename);
323  path_size = (hls->use_localtime_mkdir ? 0 : strlen(dirname)) + strlen(segment->filename) + 1;
324  path = av_malloc(path_size);
325  if (!path) {
326  ret = AVERROR(ENOMEM);
327  goto fail;
328  }
329 
330  if (hls->use_localtime_mkdir)
331  av_strlcpy(path, segment->filename, path_size);
332  else { // segment->filename contains basename only
333  av_strlcpy(path, dirname, path_size);
334  av_strlcat(path, segment->filename, path_size);
335  }
336 
337  proto = avio_find_protocol_name(s->filename);
338  if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
339  av_dict_set(&options, "method", "DELETE", 0);
340  if ((ret = hls->avf->io_open(hls->avf, &out, path, AVIO_FLAG_WRITE, &options)) < 0)
341  goto fail;
342  ff_format_io_close(hls->avf, &out);
343  } else if (unlink(path) < 0) {
344  av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
345  path, strerror(errno));
346  }
347 
348  if ((segment->sub_filename[0] != '\0')) {
349  sub_path_size = strlen(segment->sub_filename) + 1 + (dirname ? strlen(dirname) : 0);
350  sub_path = av_malloc(sub_path_size);
351  if (!sub_path) {
352  ret = AVERROR(ENOMEM);
353  goto fail;
354  }
355 
356  av_strlcpy(sub_path, dirname, sub_path_size);
357  av_strlcat(sub_path, segment->sub_filename, sub_path_size);
358 
359  if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
360  av_dict_set(&options, "method", "DELETE", 0);
361  if ((ret = hls->avf->io_open(hls->avf, &out, sub_path, AVIO_FLAG_WRITE, &options)) < 0) {
362  av_free(sub_path);
363  goto fail;
364  }
365  ff_format_io_close(hls->avf, &out);
366  } else if (unlink(sub_path) < 0) {
367  av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
368  sub_path, strerror(errno));
369  }
370  av_free(sub_path);
371  }
372  av_freep(&path);
373  previous_segment = segment;
374  segment = previous_segment->next;
375  av_free(previous_segment);
376  }
377 
378 fail:
379  av_free(path);
380  av_free(dirname);
381 
382  return ret;
383 }
384 
385 static int randomize(uint8_t *buf, int len)
386 {
387 #if CONFIG_GCRYPT
388  gcry_randomize(buf, len, GCRY_VERY_STRONG_RANDOM);
389  return 0;
390 #elif CONFIG_OPENSSL
391  if (RAND_bytes(buf, len))
392  return 0;
393 #else
394  return AVERROR(ENOSYS);
395 #endif
396  return AVERROR(EINVAL);
397 }
398 
400 {
401  HLSContext *hls = s->priv_data;
402  int ret;
403  int len;
404  AVIOContext *pb;
405  uint8_t key[KEYSIZE];
406 
407  len = strlen(hls->basename) + 4 + 1;
408  hls->key_basename = av_mallocz(len);
409  if (!hls->key_basename)
410  return AVERROR(ENOMEM);
411 
412  av_strlcpy(hls->key_basename, s->filename, len);
413  av_strlcat(hls->key_basename, ".key", len);
414 
415  if (hls->key_url) {
416  av_strlcpy(hls->key_file, hls->key_url, sizeof(hls->key_file));
417  av_strlcpy(hls->key_uri, hls->key_url, sizeof(hls->key_uri));
418  } else {
419  av_strlcpy(hls->key_file, hls->key_basename, sizeof(hls->key_file));
420  av_strlcpy(hls->key_uri, hls->key_basename, sizeof(hls->key_uri));
421  }
422 
423  if (!*hls->iv_string) {
424  uint8_t iv[16] = { 0 };
425  char buf[33];
426 
427  if (!hls->iv) {
428  AV_WB64(iv + 8, hls->sequence);
429  } else {
430  memcpy(iv, hls->iv, sizeof(iv));
431  }
432  ff_data_to_hex(buf, iv, sizeof(iv), 0);
433  buf[32] = '\0';
434  memcpy(hls->iv_string, buf, sizeof(hls->iv_string));
435  }
436 
437  if (!*hls->key_uri) {
438  av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
439  return AVERROR(EINVAL);
440  }
441 
442  if (!*hls->key_file) {
443  av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
444  return AVERROR(EINVAL);
445  }
446 
447  if (!*hls->key_string) {
448  if (!hls->key) {
449  if ((ret = randomize(key, sizeof(key))) < 0) {
450  av_log(s, AV_LOG_ERROR, "Cannot generate a strong random key\n");
451  return ret;
452  }
453  } else {
454  memcpy(key, hls->key, sizeof(key));
455  }
456 
457  ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
458  if ((ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_WRITE, NULL)) < 0)
459  return ret;
460  avio_seek(pb, 0, SEEK_CUR);
461  avio_write(pb, key, KEYSIZE);
462  avio_close(pb);
463  }
464  return 0;
465 }
466 
467 
469 {
470  HLSContext *hls = s->priv_data;
471  int ret;
472  AVIOContext *pb;
473  uint8_t key[KEYSIZE];
474 
475  if ((ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, NULL)) < 0) {
476  av_log(hls, AV_LOG_ERROR,
477  "error opening key info file %s\n", hls->key_info_file);
478  return ret;
479  }
480 
481  ff_get_line(pb, hls->key_uri, sizeof(hls->key_uri));
482  hls->key_uri[strcspn(hls->key_uri, "\r\n")] = '\0';
483 
484  ff_get_line(pb, hls->key_file, sizeof(hls->key_file));
485  hls->key_file[strcspn(hls->key_file, "\r\n")] = '\0';
486 
487  ff_get_line(pb, hls->iv_string, sizeof(hls->iv_string));
488  hls->iv_string[strcspn(hls->iv_string, "\r\n")] = '\0';
489 
490  ff_format_io_close(s, &pb);
491 
492  if (!*hls->key_uri) {
493  av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
494  return AVERROR(EINVAL);
495  }
496 
497  if (!*hls->key_file) {
498  av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
499  return AVERROR(EINVAL);
500  }
501 
502  if ((ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_READ, NULL)) < 0) {
503  av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", hls->key_file);
504  return ret;
505  }
506 
507  ret = avio_read(pb, key, sizeof(key));
508  ff_format_io_close(s, &pb);
509  if (ret != sizeof(key)) {
510  av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", hls->key_file);
511  if (ret >= 0 || ret == AVERROR_EOF)
512  ret = AVERROR(EINVAL);
513  return ret;
514  }
515  ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
516 
517  return 0;
518 }
519 
520 static int read_chomp_line(AVIOContext *s, char *buf, int maxlen)
521 {
522  int len = ff_get_line(s, buf, maxlen);
523  while (len > 0 && av_isspace(buf[len - 1]))
524  buf[--len] = '\0';
525  return len;
526 }
527 
529 {
531  HLSContext *hls = s->priv_data;
532  AVFormatContext *oc;
533  AVFormatContext *vtt_oc = NULL;
534  int i, ret;
535 
536  ret = avformat_alloc_output_context2(&hls->avf, hls->oformat, NULL, NULL);
537  if (ret < 0)
538  return ret;
539  oc = hls->avf;
540 
541  oc->filename[0] = '\0';
542  oc->oformat = hls->oformat;
544  oc->max_delay = s->max_delay;
545  oc->opaque = s->opaque;
546  oc->io_open = s->io_open;
547  oc->io_close = s->io_close;
548  av_dict_copy(&oc->metadata, s->metadata, 0);
549 
550  if(hls->vtt_oformat) {
552  if (ret < 0)
553  return ret;
554  vtt_oc = hls->vtt_avf;
555  vtt_oc->oformat = hls->vtt_oformat;
556  av_dict_copy(&vtt_oc->metadata, s->metadata, 0);
557  }
558 
559  for (i = 0; i < s->nb_streams; i++) {
560  AVStream *st;
561  AVFormatContext *loc;
563  loc = vtt_oc;
564  else
565  loc = oc;
566 
567  if (!(st = avformat_new_stream(loc, NULL)))
568  return AVERROR(ENOMEM);
570  if (!oc->oformat->codec_tag ||
574  } else {
575  st->codecpar->codec_tag = 0;
576  }
577 
579  st->time_base = s->streams[i]->time_base;
580  av_dict_copy(&st->metadata, s->streams[i]->metadata, 0);
581  }
582  hls->start_pos = 0;
583  hls->new_start = 1;
584  hls->fmp4_init_mode = 0;
585 
586  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
587  hls->fmp4_init_mode = 1;
588  if ((ret = s->io_open(s, &oc->pb, hls->base_output_dirname, AVIO_FLAG_WRITE, NULL)) < 0) {
589  av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", hls->fmp4_init_filename);
590  return ret;
591  }
592 
593  if (hls->format_options_str) {
594  ret = av_dict_parse_string(&hls->format_options, hls->format_options_str, "=", ":", 0);
595  if (ret < 0) {
596  av_log(s, AV_LOG_ERROR, "Could not parse format options list '%s'\n",
597  hls->format_options_str);
598  return ret;
599  }
600  }
601 
602  av_dict_copy(&options, hls->format_options, 0);
603  av_dict_set(&options, "fflags", "-autobsf", 0);
604  av_dict_set(&options, "movflags", "frag_custom+dash+delay_moov", 0);
605  ret = avformat_init_output(oc, &options);
606  if (ret < 0)
607  return ret;
608  if (av_dict_count(options)) {
609  av_log(s, AV_LOG_ERROR, "Some of the provided format options in '%s' are not recognized\n", hls->format_options_str);
610  av_dict_free(&options);
611  return AVERROR(EINVAL);
612  }
613  av_dict_free(&options);
614  }
615  return 0;
616 }
617 
618 static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename)
619 {
620  while (segment) {
621  if (!av_strcasecmp(segment->filename,filename))
622  return segment;
623  segment = segment->next;
624  }
625  return (HLSSegment *) NULL;
626 }
627 
629  int64_t pos, int64_t size)
630 {
632  strlen(hls->current_segment_final_filename_fmt)) {
635  char * filename = av_strdup(hls->avf->filename); // %%s will be %s after strftime
636  if (!filename) {
637  av_free(en);
638  return AVERROR(ENOMEM);
639  }
640  if (replace_int_data_in_filename(hls->avf->filename, sizeof(hls->avf->filename),
641  filename, 's', pos + size) < 1) {
642  av_log(hls, AV_LOG_ERROR,
643  "Invalid second level segment filename template '%s', "
644  "you can try to remove second_level_segment_size flag\n",
645  filename);
646  av_free(filename);
647  av_free(en);
648  return AVERROR(EINVAL);
649  }
650  av_free(filename);
651  }
653  char * filename = av_strdup(hls->avf->filename); // %%t will be %t after strftime
654  if (!filename) {
655  av_free(en);
656  return AVERROR(ENOMEM);
657  }
658  if (replace_int_data_in_filename(hls->avf->filename, sizeof(hls->avf->filename),
659  filename, 't', (int64_t)round(duration * HLS_MICROSECOND_UNIT)) < 1) {
660  av_log(hls, AV_LOG_ERROR,
661  "Invalid second level segment filename template '%s', "
662  "you can try to remove second_level_segment_time flag\n",
663  filename);
664  av_free(filename);
665  av_free(en);
666  return AVERROR(EINVAL);
667  }
668  av_free(filename);
669  }
670  }
671  return 0;
672 }
673 
675 {
676  int ret = 0;
677 
679  av_log(hls, AV_LOG_ERROR,
680  "second_level_segment_duration hls_flag requires use_localtime to be true\n");
681  ret = AVERROR(EINVAL);
682  }
684  av_log(hls, AV_LOG_ERROR,
685  "second_level_segment_size hls_flag requires use_localtime to be true\n");
686  ret = AVERROR(EINVAL);
687  }
689  av_log(hls, AV_LOG_ERROR,
690  "second_level_segment_index hls_flag requires use_localtime to be true\n");
691  ret = AVERROR(EINVAL);
692  }
693 
694  return ret;
695 }
696 
698 {
699  const char *proto = avio_find_protocol_name(hls->basename);
700  int segment_renaming_ok = proto && !strcmp(proto, "file");
701  int ret = 0;
702 
703  if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) {
704  av_log(hls, AV_LOG_ERROR,
705  "second_level_segment_duration hls_flag works only with file protocol segment names\n");
706  ret = AVERROR(EINVAL);
707  }
708  if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) {
709  av_log(hls, AV_LOG_ERROR,
710  "second_level_segment_size hls_flag works only with file protocol segment names\n");
711  ret = AVERROR(EINVAL);
712  }
713 
714  return ret;
715 }
716 
717 static void sls_flag_file_rename(HLSContext *hls, char *old_filename) {
719  strlen(hls->current_segment_final_filename_fmt)) {
720  ff_rename(old_filename, hls->avf->filename, hls);
721  }
722 }
723 
725 {
727  char * filename = av_strdup(oc->filename); // %%d will be %d after strftime
728  if (!filename)
729  return AVERROR(ENOMEM);
730  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
731 #if FF_API_HLS_WRAP
732  filename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
733 #else
734  filename, 'd', c->sequence) < 1) {
735 #endif
736  av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
737  "you can try to remove second_level_segment_index flag\n",
738  filename);
739  av_free(filename);
740  return AVERROR(EINVAL);
741  }
742  av_free(filename);
743  }
748  char * filename = av_strdup(oc->filename); // %%s will be %s after strftime
749  if (!filename)
750  return AVERROR(ENOMEM);
751  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename), filename, 's', 0) < 1) {
752  av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
753  "you can try to remove second_level_segment_size flag\n",
754  filename);
755  av_free(filename);
756  return AVERROR(EINVAL);
757  }
758  av_free(filename);
759  }
761  char * filename = av_strdup(oc->filename); // %%t will be %t after strftime
762  if (!filename)
763  return AVERROR(ENOMEM);
764  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename), filename, 't', 0) < 1) {
765  av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
766  "you can try to remove second_level_segment_time flag\n",
767  filename);
768  av_free(filename);
769  return AVERROR(EINVAL);
770  }
771  av_free(filename);
772  }
773  }
774  return 0;
775 }
776 
777 /* Create a new segment and append it to the segment list */
778 static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls, double duration,
779  int64_t pos, int64_t size)
780 {
781  HLSSegment *en = av_malloc(sizeof(*en));
782  const char *filename;
783  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
784  int ret;
785 
786  if (!en)
787  return AVERROR(ENOMEM);
788 
789  ret = sls_flags_filename_process(s, hls, en, duration, pos, size);
790  if (ret < 0) {
791  return ret;
792  }
793 
794  filename = av_basename(hls->avf->filename);
795 
796  if (hls->use_localtime_mkdir) {
797  filename = hls->avf->filename;
798  }
799  if ((find_segment_by_filename(hls->segments, filename) || find_segment_by_filename(hls->old_segments, filename))
800  && !byterange_mode) {
801  av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename);
802  }
803  av_strlcpy(en->filename, filename, sizeof(en->filename));
804 
805  if(hls->has_subtitle)
807  else
808  en->sub_filename[0] = '\0';
809 
810  en->duration = duration;
811  en->pos = pos;
812  en->size = size;
813  en->next = NULL;
814  en->discont = 0;
815 
816  if (hls->discontinuity) {
817  en->discont = 1;
818  hls->discontinuity = 0;
819  }
820 
821  if (hls->key_info_file || hls->encrypt) {
822  av_strlcpy(en->key_uri, hls->key_uri, sizeof(en->key_uri));
823  av_strlcpy(en->iv_string, hls->iv_string, sizeof(en->iv_string));
824  }
825 
826  if (!hls->segments)
827  hls->segments = en;
828  else
829  hls->last_segment->next = en;
830 
831  hls->last_segment = en;
832 
833  // EVENT or VOD playlists imply sliding window cannot be used
834  if (hls->pl_type != PLAYLIST_TYPE_NONE)
835  hls->max_nb_segments = 0;
836 
837  if (hls->max_nb_segments && hls->nb_entries >= hls->max_nb_segments) {
838  en = hls->segments;
839  hls->initial_prog_date_time += en->duration;
840  hls->segments = en->next;
841  if (en && hls->flags & HLS_DELETE_SEGMENTS &&
842 #if FF_API_HLS_WRAP
843  !(hls->flags & HLS_SINGLE_FILE || hls->wrap)) {
844 #else
845  !(hls->flags & HLS_SINGLE_FILE)) {
846 #endif
847  en->next = hls->old_segments;
848  hls->old_segments = en;
849  if ((ret = hls_delete_old_segments(s, hls)) < 0)
850  return ret;
851  } else
852  av_free(en);
853  } else
854  hls->nb_entries++;
855 
856  if (hls->max_seg_size > 0) {
857  return 0;
858  }
859  hls->sequence++;
860 
861  return 0;
862 }
863 
864 static int parse_playlist(AVFormatContext *s, const char *url)
865 {
866  HLSContext *hls = s->priv_data;
867  AVIOContext *in;
868  int ret = 0, is_segment = 0;
869  int64_t new_start_pos;
870  char line[1024];
871  const char *ptr;
872  const char *end;
873 
874  if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ,
877  return ret;
878 
879  read_chomp_line(in, line, sizeof(line));
880  if (strcmp(line, "#EXTM3U")) {
881  ret = AVERROR_INVALIDDATA;
882  goto fail;
883  }
884 
885  hls->discontinuity = 0;
886  while (!avio_feof(in)) {
887  read_chomp_line(in, line, sizeof(line));
888  if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
889  int64_t tmp_sequence = strtoll(ptr, NULL, 10);
890  if (tmp_sequence < hls->sequence)
891  av_log(hls, AV_LOG_VERBOSE,
892  "Found playlist sequence number was smaller """
893  "than specified start sequence number: %"PRId64" < %"PRId64", "
894  "omitting\n", tmp_sequence, hls->start_sequence);
895  else {
896  av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence);
897  hls->sequence = tmp_sequence;
898  }
899  } else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) {
900  is_segment = 1;
901  hls->discontinuity = 1;
902  } else if (av_strstart(line, "#EXTINF:", &ptr)) {
903  is_segment = 1;
904  hls->duration = atof(ptr);
905  } else if (av_stristart(line, "#EXT-X-KEY:", &ptr)) {
906  ptr = av_stristr(line, "URI=\"");
907  if (ptr) {
908  ptr += strlen("URI=\"");
909  end = av_stristr(ptr, ",");
910  if (end) {
911  av_strlcpy(hls->key_uri, ptr, end - ptr);
912  } else {
913  av_strlcpy(hls->key_uri, ptr, sizeof(hls->key_uri));
914  }
915  }
916 
917  ptr = av_stristr(line, "IV=0x");
918  if (ptr) {
919  ptr += strlen("IV=0x");
920  end = av_stristr(ptr, ",");
921  if (end) {
922  av_strlcpy(hls->iv_string, ptr, end - ptr);
923  } else {
924  av_strlcpy(hls->iv_string, ptr, sizeof(hls->iv_string));
925  }
926  }
927 
928  } else if (av_strstart(line, "#", NULL)) {
929  continue;
930  } else if (line[0]) {
931  if (is_segment) {
932  is_segment = 0;
933  new_start_pos = avio_tell(hls->avf->pb);
934  hls->size = new_start_pos - hls->start_pos;
935  av_strlcpy(hls->avf->filename, line, sizeof(line));
936  ret = hls_append_segment(s, hls, hls->duration, hls->start_pos, hls->size);
937  if (ret < 0)
938  goto fail;
939  hls->start_pos = new_start_pos;
940  }
941  }
942  }
943 
944 fail:
945  avio_close(in);
946  return ret;
947 }
948 
950 {
951  HLSSegment *en;
952 
953  while(p) {
954  en = p;
955  p = p->next;
956  av_free(en);
957  }
958 }
959 
961 {
962  const char *proto = avio_find_protocol_name(s->filename);
963  int http_base_proto = proto ? (!av_strcasecmp(proto, "http") || !av_strcasecmp(proto, "https")) : 0;
964 
965  if (c->method) {
966  av_dict_set(options, "method", c->method, 0);
967  } else if (http_base_proto) {
968  av_log(c, AV_LOG_WARNING, "No HTTP method set, hls muxer defaulting to method PUT.\n");
969  av_dict_set(options, "method", "PUT", 0);
970  }
971 }
972 
974  int target_duration, int64_t sequence)
975 {
976  avio_printf(out, "#EXTM3U\n");
977  avio_printf(out, "#EXT-X-VERSION:%d\n", version);
978  if (hls->allowcache == 0 || hls->allowcache == 1) {
979  avio_printf(out, "#EXT-X-ALLOW-CACHE:%s\n", hls->allowcache == 0 ? "NO" : "YES");
980  }
981  avio_printf(out, "#EXT-X-TARGETDURATION:%d\n", target_duration);
982  avio_printf(out, "#EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
983  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
984  avio_printf(out, "#EXT-X-MAP:URI=\"%s\"\n", hls->fmp4_init_filename);
985  }
986  av_log(hls, AV_LOG_VERBOSE, "EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
987 }
988 
990 {
991  size_t len = strlen(oc->filename);
992  char final_filename[sizeof(oc->filename)];
993 
994  av_strlcpy(final_filename, oc->filename, len);
995  final_filename[len-4] = '\0';
996  ff_rename(oc->filename, final_filename, s);
997  oc->filename[len-4] = '\0';
998 }
999 
1000 static int hls_window(AVFormatContext *s, int last)
1001 {
1002  HLSContext *hls = s->priv_data;
1003  HLSSegment *en;
1004  int target_duration = 0;
1005  int ret = 0;
1006  AVIOContext *out = NULL;
1007  AVIOContext *sub_out = NULL;
1008  char temp_filename[1024];
1009  int64_t sequence = FFMAX(hls->start_sequence, hls->sequence - hls->nb_entries);
1010  int version = 3;
1011  const char *proto = avio_find_protocol_name(s->filename);
1012  int use_rename = proto && !strcmp(proto, "file");
1013  static unsigned warned_non_file;
1014  char *key_uri = NULL;
1015  char *iv_string = NULL;
1017  double prog_date_time = hls->initial_prog_date_time;
1018  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1019 
1020  if (byterange_mode) {
1021  version = 4;
1022  sequence = 0;
1023  }
1024 
1025  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1026  version = 7;
1027  }
1028 
1029  if (!use_rename && !warned_non_file++)
1030  av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
1031 
1032  set_http_options(s, &options, hls);
1033  snprintf(temp_filename, sizeof(temp_filename), use_rename ? "%s.tmp" : "%s", s->filename);
1034  if ((ret = s->io_open(s, &out, temp_filename, AVIO_FLAG_WRITE, &options)) < 0)
1035  goto fail;
1036 
1037  for (en = hls->segments; en; en = en->next) {
1038  if (target_duration <= en->duration)
1039  target_duration = get_int_from_double(en->duration);
1040  }
1041 
1042  hls->discontinuity_set = 0;
1043  write_m3u8_head_block(hls, out, version, target_duration, sequence);
1044  if (hls->pl_type == PLAYLIST_TYPE_EVENT) {
1045  avio_printf(out, "#EXT-X-PLAYLIST-TYPE:EVENT\n");
1046  } else if (hls->pl_type == PLAYLIST_TYPE_VOD) {
1047  avio_printf(out, "#EXT-X-PLAYLIST-TYPE:VOD\n");
1048  }
1049 
1050  if((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && hls->discontinuity_set==0 ){
1051  avio_printf(out, "#EXT-X-DISCONTINUITY\n");
1052  hls->discontinuity_set = 1;
1053  }
1054  for (en = hls->segments; en; en = en->next) {
1055  if ((hls->encrypt || hls->key_info_file) && (!key_uri || strcmp(en->key_uri, key_uri) ||
1056  av_strcasecmp(en->iv_string, iv_string))) {
1057  avio_printf(out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri);
1058  if (*en->iv_string)
1059  avio_printf(out, ",IV=0x%s", en->iv_string);
1060  avio_printf(out, "\n");
1061  key_uri = en->key_uri;
1062  iv_string = en->iv_string;
1063  }
1064 
1065  if (en->discont) {
1066  avio_printf(out, "#EXT-X-DISCONTINUITY\n");
1067  }
1068 
1069  if (hls->flags & HLS_ROUND_DURATIONS)
1070  avio_printf(out, "#EXTINF:%ld,\n", lrint(en->duration));
1071  else
1072  avio_printf(out, "#EXTINF:%f,\n", en->duration);
1073  if (byterange_mode)
1074  avio_printf(out, "#EXT-X-BYTERANGE:%"PRIi64"@%"PRIi64"\n",
1075  en->size, en->pos);
1076  if (hls->flags & HLS_PROGRAM_DATE_TIME) {
1077  time_t tt, wrongsecs;
1078  int milli;
1079  struct tm *tm, tmpbuf;
1080  char buf0[128], buf1[128];
1081  tt = (int64_t)prog_date_time;
1082  milli = av_clip(lrint(1000*(prog_date_time - tt)), 0, 999);
1083  tm = localtime_r(&tt, &tmpbuf);
1084  strftime(buf0, sizeof(buf0), "%Y-%m-%dT%H:%M:%S", tm);
1085  if (!strftime(buf1, sizeof(buf1), "%z", tm) || buf1[1]<'0' ||buf1[1]>'2') {
1086  int tz_min, dst = tm->tm_isdst;
1087  tm = gmtime_r(&tt, &tmpbuf);
1088  tm->tm_isdst = dst;
1089  wrongsecs = mktime(tm);
1090  tz_min = (abs(wrongsecs - tt) + 30) / 60;
1091  snprintf(buf1, sizeof(buf1),
1092  "%c%02d%02d",
1093  wrongsecs <= tt ? '+' : '-',
1094  tz_min / 60,
1095  tz_min % 60);
1096  }
1097  avio_printf(out, "#EXT-X-PROGRAM-DATE-TIME:%s.%03d%s\n", buf0, milli, buf1);
1098  prog_date_time += en->duration;
1099  }
1100  if (hls->baseurl)
1101  avio_printf(out, "%s", hls->baseurl);
1102  avio_printf(out, "%s\n", en->filename);
1103  }
1104 
1105  if (last && (hls->flags & HLS_OMIT_ENDLIST)==0)
1106  avio_printf(out, "#EXT-X-ENDLIST\n");
1107 
1108  if( hls->vtt_m3u8_name ) {
1109  if ((ret = s->io_open(s, &sub_out, hls->vtt_m3u8_name, AVIO_FLAG_WRITE, &options)) < 0)
1110  goto fail;
1111  write_m3u8_head_block(hls, sub_out, version, target_duration, sequence);
1112 
1113  for (en = hls->segments; en; en = en->next) {
1114  avio_printf(sub_out, "#EXTINF:%f,\n", en->duration);
1115  if (byterange_mode)
1116  avio_printf(sub_out, "#EXT-X-BYTERANGE:%"PRIi64"@%"PRIi64"\n",
1117  en->size, en->pos);
1118  if (hls->baseurl)
1119  avio_printf(sub_out, "%s", hls->baseurl);
1120  avio_printf(sub_out, "%s\n", en->sub_filename);
1121  }
1122 
1123  if (last)
1124  avio_printf(sub_out, "#EXT-X-ENDLIST\n");
1125 
1126  }
1127 
1128 fail:
1129  av_dict_free(&options);
1130  ff_format_io_close(s, &out);
1131  ff_format_io_close(s, &sub_out);
1132  if (ret >= 0 && use_rename)
1133  ff_rename(temp_filename, s->filename, s);
1134  return ret;
1135 }
1136 
1138 {
1139  HLSContext *c = s->priv_data;
1140  AVFormatContext *oc = c->avf;
1141  AVFormatContext *vtt_oc = c->vtt_avf;
1143  char *filename, iv_string[KEYSIZE*2 + 1];
1144  int err = 0;
1145 
1146  if (c->flags & HLS_SINGLE_FILE) {
1147  av_strlcpy(oc->filename, c->basename,
1148  sizeof(oc->filename));
1149  if (c->vtt_basename)
1150  av_strlcpy(vtt_oc->filename, c->vtt_basename,
1151  sizeof(vtt_oc->filename));
1152  } else if (c->max_seg_size > 0) {
1153  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
1154 #if FF_API_HLS_WRAP
1155  c->basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
1156 #else
1157  c->basename, 'd', c->sequence) < 1) {
1158 #endif
1159  av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -use_localtime 1 with it\n", c->basename);
1160  return AVERROR(EINVAL);
1161  }
1162  } else {
1163  if (c->use_localtime) {
1164  time_t now0;
1165  struct tm *tm, tmpbuf;
1166  time(&now0);
1167  tm = localtime_r(&now0, &tmpbuf);
1168  if (!strftime(oc->filename, sizeof(oc->filename), c->basename, tm)) {
1169  av_log(oc, AV_LOG_ERROR, "Could not get segment filename with use_localtime\n");
1170  return AVERROR(EINVAL);
1171  }
1172 
1173  err = sls_flag_use_localtime_filename(oc, c);
1174  if (err < 0) {
1175  return AVERROR(ENOMEM);
1176  }
1177 
1178  if (c->use_localtime_mkdir) {
1179  const char *dir;
1180  char *fn_copy = av_strdup(oc->filename);
1181  if (!fn_copy) {
1182  return AVERROR(ENOMEM);
1183  }
1184  dir = av_dirname(fn_copy);
1185  if (mkdir_p(dir) == -1 && errno != EEXIST) {
1186  av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir);
1187  av_free(fn_copy);
1188  return AVERROR(errno);
1189  }
1190  av_free(fn_copy);
1191  }
1192  } else if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
1193 #if FF_API_HLS_WRAP
1194  c->basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
1195 #else
1196  c->basename, 'd', c->sequence) < 1) {
1197 #endif
1198  av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -use_localtime 1 with it\n", c->basename);
1199  return AVERROR(EINVAL);
1200  }
1201  if( c->vtt_basename) {
1202  if (replace_int_data_in_filename(vtt_oc->filename, sizeof(vtt_oc->filename),
1203 #if FF_API_HLS_WRAP
1204  c->vtt_basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
1205 #else
1206  c->vtt_basename, 'd', c->sequence) < 1) {
1207 #endif
1208  av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", c->vtt_basename);
1209  return AVERROR(EINVAL);
1210  }
1211  }
1212  }
1213  c->number++;
1214 
1215  set_http_options(s, &options, c);
1216 
1217  if (c->flags & HLS_TEMP_FILE) {
1218  av_strlcat(oc->filename, ".tmp", sizeof(oc->filename));
1219  }
1220 
1221  if (c->key_info_file || c->encrypt) {
1222  if (c->key_info_file && c->encrypt) {
1223  av_log(s, AV_LOG_WARNING, "Cannot use both -hls_key_info_file and -hls_enc,"
1224  " will use -hls_key_info_file priority\n");
1225  }
1226 
1227  if (c->number <= 1) {
1228  if (c->key_info_file) {
1229  if ((err = hls_encryption_start(s)) < 0)
1230  goto fail;
1231  } else {
1232  if ((err = do_encrypt(s)) < 0)
1233  goto fail;
1234  }
1235  }
1236  if ((err = av_dict_set(&options, "encryption_key", c->key_string, 0))
1237  < 0)
1238  goto fail;
1239  err = av_strlcpy(iv_string, c->iv_string, sizeof(iv_string));
1240  if (!err)
1241  snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, c->sequence);
1242  if ((err = av_dict_set(&options, "encryption_iv", iv_string, 0)) < 0)
1243  goto fail;
1244 
1245  filename = av_asprintf("crypto:%s", oc->filename);
1246  if (!filename) {
1247  err = AVERROR(ENOMEM);
1248  goto fail;
1249  }
1250  err = s->io_open(s, &oc->pb, filename, AVIO_FLAG_WRITE, &options);
1251  av_free(filename);
1252  av_dict_free(&options);
1253  if (err < 0)
1254  return err;
1255  } else
1256  if ((err = s->io_open(s, &oc->pb, oc->filename, AVIO_FLAG_WRITE, &options)) < 0)
1257  goto fail;
1258  if (c->vtt_basename) {
1259  set_http_options(s, &options, c);
1260  if ((err = s->io_open(s, &vtt_oc->pb, vtt_oc->filename, AVIO_FLAG_WRITE, &options)) < 0)
1261  goto fail;
1262  }
1263  av_dict_free(&options);
1264 
1265  if (c->segment_type == SEGMENT_TYPE_FMP4) {
1266  write_styp(oc->pb);
1267  } else {
1268  /* We only require one PAT/PMT per segment. */
1269  if (oc->oformat->priv_class && oc->priv_data) {
1270  char period[21];
1271 
1272  snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1);
1273 
1274  av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
1275  av_opt_set(oc->priv_data, "sdt_period", period, 0);
1276  av_opt_set(oc->priv_data, "pat_period", period, 0);
1277  }
1278  }
1279 
1280  if (c->vtt_basename) {
1281  err = avformat_write_header(vtt_oc,NULL);
1282  if (err < 0)
1283  return err;
1284  }
1285 
1286  return 0;
1287 fail:
1288  av_dict_free(&options);
1289 
1290  return err;
1291 }
1292 
1294 {
1295  char b[21];
1296  time_t t = time(NULL);
1297  struct tm *p, tmbuf;
1298  HLSContext *hls = s->priv_data;
1299 
1300  p = localtime_r(&t, &tmbuf);
1301  // no %s support when strftime returned error or left format string unchanged
1302  // also no %s support on MSVC, which invokes the invalid parameter handler on unsupported format strings, instead of returning an error
1303  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1304  return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.m4s" : "-%s.m4s";
1305  }
1306  return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts";
1307 }
1308 
1310 {
1311  HLSContext *hls = s->priv_data;
1312  int ret, i;
1313  char *p;
1314  const char *pattern = "%d.ts";
1315  const char *pattern_localtime_fmt = get_default_pattern_localtime_fmt(s);
1316  const char *vtt_pattern = "%d.vtt";
1317  AVDictionary *options = NULL;
1318  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1319  int basename_size;
1320  int vtt_basename_size;
1321 
1322  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1323  if (byterange_mode) {
1324  av_log(s, AV_LOG_WARNING, "Have not support fmp4 byterange mode yet now\n");
1325  return AVERROR_PATCHWELCOME;
1326  }
1327  pattern = "%d.m4s";
1328  }
1331  time_t t = time(NULL); // we will need it in either case
1333  hls->start_sequence = (int64_t)t;
1335  char b[15];
1336  struct tm *p, tmbuf;
1337  if (!(p = localtime_r(&t, &tmbuf)))
1338  return AVERROR(ENOMEM);
1339  if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p))
1340  return AVERROR(ENOMEM);
1341  hls->start_sequence = strtoll(b, NULL, 10);
1342  }
1343  av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
1344  }
1345 
1346  hls->sequence = hls->start_sequence;
1347  hls->recording_time = (hls->init_time ? hls->init_time : hls->time) * AV_TIME_BASE;
1348  hls->start_pts = AV_NOPTS_VALUE;
1349  hls->current_segment_final_filename_fmt[0] = '\0';
1350 
1351  if (hls->flags & HLS_PROGRAM_DATE_TIME) {
1352  time_t now0;
1353  time(&now0);
1354  hls->initial_prog_date_time = now0;
1355  }
1356 
1357  if (hls->format_options_str) {
1358  ret = av_dict_parse_string(&hls->format_options, hls->format_options_str, "=", ":", 0);
1359  if (ret < 0) {
1360  av_log(s, AV_LOG_ERROR, "Could not parse format options list '%s'\n", hls->format_options_str);
1361  goto fail;
1362  }
1363  }
1364 
1365  for (i = 0; i < s->nb_streams; i++) {
1366  hls->has_video +=
1368  hls->has_subtitle +=
1370  }
1371 
1372  if (hls->has_video > 1)
1374  "More than a single video stream present, "
1375  "expect issues decoding it.\n");
1376 
1377  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1378  hls->oformat = av_guess_format("mp4", NULL, NULL);
1379  } else {
1380  hls->oformat = av_guess_format("mpegts", NULL, NULL);
1381  }
1382 
1383  if (!hls->oformat) {
1385  goto fail;
1386  }
1387 
1388  if(hls->has_subtitle) {
1389  hls->vtt_oformat = av_guess_format("webvtt", NULL, NULL);
1390  if (!hls->oformat) {
1392  goto fail;
1393  }
1394  }
1395 
1396  if (hls->segment_filename) {
1397  hls->basename = av_strdup(hls->segment_filename);
1398  if (!hls->basename) {
1399  ret = AVERROR(ENOMEM);
1400  goto fail;
1401  }
1402  } else {
1403  if (hls->flags & HLS_SINGLE_FILE)
1404  pattern = ".ts";
1405 
1406  if (hls->use_localtime) {
1407  basename_size = strlen(s->filename) + strlen(pattern_localtime_fmt) + 1;
1408  } else {
1409  basename_size = strlen(s->filename) + strlen(pattern) + 1;
1410  }
1411  hls->basename = av_malloc(basename_size);
1412  if (!hls->basename) {
1413  ret = AVERROR(ENOMEM);
1414  goto fail;
1415  }
1416 
1417  av_strlcpy(hls->basename, s->filename, basename_size);
1418 
1419  p = strrchr(hls->basename, '.');
1420  if (p)
1421  *p = '\0';
1422  if (hls->use_localtime) {
1423  av_strlcat(hls->basename, pattern_localtime_fmt, basename_size);
1424  } else {
1425  av_strlcat(hls->basename, pattern, basename_size);
1426  }
1427 
1428  if (av_strcasecmp(hls->fmp4_init_filename, "init.mp4")) {
1429  int fmp4_init_filename_len = strlen(hls->fmp4_init_filename) + 1;
1430  hls->base_output_dirname = av_malloc(fmp4_init_filename_len);
1431  if (!hls->base_output_dirname) {
1432  ret = AVERROR(ENOMEM);
1433  goto fail;
1434  }
1435  av_strlcpy(hls->base_output_dirname, hls->fmp4_init_filename, fmp4_init_filename_len);
1436  } else {
1437  hls->base_output_dirname = av_malloc(basename_size);
1438  if (!hls->base_output_dirname) {
1439  ret = AVERROR(ENOMEM);
1440  goto fail;
1441  }
1442 
1443  av_strlcpy(hls->base_output_dirname, s->filename, basename_size);
1444  p = strrchr(hls->base_output_dirname, '/');
1445  if (p) {
1446  *(p + 1) = '\0';
1447  av_strlcat(hls->base_output_dirname, hls->fmp4_init_filename, basename_size);
1448  } else {
1449  av_strlcpy(hls->base_output_dirname, hls->fmp4_init_filename, basename_size);
1450  }
1451  }
1452  }
1453  if (!hls->use_localtime) {
1455  if (ret < 0) {
1456  goto fail;
1457  }
1458  } else {
1459  ret = sls_flag_check_duration_size(hls);
1460  if (ret < 0) {
1461  goto fail;
1462  }
1463  }
1464  if(hls->has_subtitle) {
1465 
1466  if (hls->flags & HLS_SINGLE_FILE)
1467  vtt_pattern = ".vtt";
1468  vtt_basename_size = strlen(s->filename) + strlen(vtt_pattern) + 1;
1469  hls->vtt_basename = av_malloc(vtt_basename_size);
1470  if (!hls->vtt_basename) {
1471  ret = AVERROR(ENOMEM);
1472  goto fail;
1473  }
1474  hls->vtt_m3u8_name = av_malloc(vtt_basename_size);
1475  if (!hls->vtt_m3u8_name ) {
1476  ret = AVERROR(ENOMEM);
1477  goto fail;
1478  }
1479  av_strlcpy(hls->vtt_basename, s->filename, vtt_basename_size);
1480  p = strrchr(hls->vtt_basename, '.');
1481  if (p)
1482  *p = '\0';
1483 
1484  if( hls->subtitle_filename ) {
1485  strcpy(hls->vtt_m3u8_name, hls->subtitle_filename);
1486  } else {
1487  strcpy(hls->vtt_m3u8_name, hls->vtt_basename);
1488  av_strlcat(hls->vtt_m3u8_name, "_vtt.m3u8", vtt_basename_size);
1489  }
1490  av_strlcat(hls->vtt_basename, vtt_pattern, vtt_basename_size);
1491  }
1492 
1493  if ((ret = hls_mux_init(s)) < 0)
1494  goto fail;
1495 
1496  if (hls->flags & HLS_APPEND_LIST) {
1497  parse_playlist(s, s->filename);
1498  hls->discontinuity = 1;
1499  if (hls->init_time > 0) {
1500  av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
1501  " hls_init_time value will have no effect\n");
1502  hls->init_time = 0;
1503  hls->recording_time = hls->time * AV_TIME_BASE;
1504  }
1505  }
1506 
1507  if (hls->segment_type != SEGMENT_TYPE_FMP4) {
1508  if ((ret = hls_start(s)) < 0)
1509  goto fail;
1510  }
1511 
1512  av_dict_copy(&options, hls->format_options, 0);
1513  ret = avformat_write_header(hls->avf, &options);
1514  if (av_dict_count(options)) {
1515  av_log(s, AV_LOG_ERROR, "Some of provided format options in '%s' are not recognized\n", hls->format_options_str);
1516  ret = AVERROR(EINVAL);
1517  goto fail;
1518  }
1519  //av_assert0(s->nb_streams == hls->avf->nb_streams);
1520  for (i = 0; i < s->nb_streams; i++) {
1521  AVStream *inner_st;
1522  AVStream *outer_st = s->streams[i];
1523 
1524  if (hls->max_seg_size > 0) {
1525  if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
1526  (outer_st->codecpar->bit_rate > hls->max_seg_size)) {
1527  av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, "
1528  "(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.",
1529  outer_st->codecpar->bit_rate, hls->max_seg_size);
1530  }
1531  }
1532 
1533  if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
1534  inner_st = hls->avf->streams[i];
1535  else if (hls->vtt_avf)
1536  inner_st = hls->vtt_avf->streams[0];
1537  else {
1538  /* We have a subtitle stream, when the user does not want one */
1539  inner_st = NULL;
1540  continue;
1541  }
1542  avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
1543  }
1544 fail:
1545 
1546  av_dict_free(&options);
1547  if (ret < 0) {
1548  av_freep(&hls->basename);
1549  av_freep(&hls->vtt_basename);
1550  av_freep(&hls->key_basename);
1551  if (hls->avf)
1552  avformat_free_context(hls->avf);
1553  if (hls->vtt_avf)
1555 
1556  }
1557  return ret;
1558 }
1559 
1561 {
1562  HLSContext *hls = s->priv_data;
1563  AVFormatContext *oc = NULL;
1564  AVStream *st = s->streams[pkt->stream_index];
1565  int64_t end_pts = hls->recording_time * hls->number;
1566  int is_ref_pkt = 1;
1567  int ret = 0, can_split = 1;
1568  int stream_index = 0;
1569 
1570  if (hls->sequence - hls->nb_entries > hls->start_sequence && hls->init_time > 0) {
1571  /* reset end_pts, hls->recording_time at end of the init hls list */
1572  int init_list_dur = hls->init_time * hls->nb_entries * AV_TIME_BASE;
1573  int after_init_list_dur = (hls->sequence - hls->nb_entries ) * hls->time * AV_TIME_BASE;
1574  hls->recording_time = hls->time * AV_TIME_BASE;
1575  end_pts = init_list_dur + after_init_list_dur ;
1576  }
1577 
1578  if( st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE ) {
1579  oc = hls->vtt_avf;
1580  stream_index = 0;
1581  } else {
1582  oc = hls->avf;
1583  stream_index = pkt->stream_index;
1584  }
1585  if (hls->start_pts == AV_NOPTS_VALUE) {
1586  hls->start_pts = pkt->pts;
1587  hls->end_pts = pkt->pts;
1588  }
1589 
1590  if (hls->has_video) {
1591  can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
1592  ((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME));
1593  is_ref_pkt = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO;
1594  }
1595  if (pkt->pts == AV_NOPTS_VALUE)
1596  is_ref_pkt = can_split = 0;
1597 
1598  if (is_ref_pkt) {
1599  if (hls->new_start) {
1600  hls->new_start = 0;
1601  hls->duration = (double)(pkt->pts - hls->end_pts)
1602  * st->time_base.num / st->time_base.den;
1603  hls->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den;
1604  } else {
1605  if (pkt->duration) {
1606  hls->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den;
1607  } else {
1608  av_log(s, AV_LOG_WARNING, "pkt->duration = 0, maybe the hls segment duration will not precise\n");
1609  hls->duration = (double)(pkt->pts - hls->end_pts) * st->time_base.num / st->time_base.den;
1610  }
1611  }
1612 
1613  }
1614  if (hls->fmp4_init_mode || can_split && av_compare_ts(pkt->pts - hls->start_pts, st->time_base,
1615  end_pts, AV_TIME_BASE_Q) >= 0) {
1616  int64_t new_start_pos;
1617  char *old_filename = av_strdup(hls->avf->filename);
1618  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1619 
1620  if (!old_filename) {
1621  return AVERROR(ENOMEM);
1622  }
1623 
1624  av_write_frame(hls->avf, NULL); /* Flush any buffered data */
1625 
1626  new_start_pos = avio_tell(hls->avf->pb);
1627  hls->size = new_start_pos - hls->start_pos;
1628 
1629  if (!byterange_mode) {
1630  ff_format_io_close(s, &oc->pb);
1631  if (hls->vtt_avf) {
1632  ff_format_io_close(s, &hls->vtt_avf->pb);
1633  }
1634  }
1635  if ((hls->flags & HLS_TEMP_FILE) && oc->filename[0]) {
1636  if (!(hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size <= 0))
1637  if ((hls->avf->oformat->priv_class && hls->avf->priv_data) && hls->segment_type != SEGMENT_TYPE_FMP4)
1638  av_opt_set(hls->avf->priv_data, "mpegts_flags", "resend_headers", 0);
1639  hls_rename_temp_file(s, oc);
1640  }
1641 
1642  if (hls->fmp4_init_mode) {
1643  hls->number--;
1644  }
1645 
1646  if (!hls->fmp4_init_mode)
1647  ret = hls_append_segment(s, hls, hls->duration, hls->start_pos, hls->size);
1648 
1649  hls->start_pos = new_start_pos;
1650  if (ret < 0) {
1651  av_free(old_filename);
1652  return ret;
1653  }
1654 
1655  hls->end_pts = pkt->pts;
1656  hls->duration = 0;
1657 
1658  hls->fmp4_init_mode = 0;
1659  if (hls->flags & HLS_SINGLE_FILE) {
1660  hls->number++;
1661  } else if (hls->max_seg_size > 0) {
1662  if (hls->start_pos >= hls->max_seg_size) {
1663  hls->sequence++;
1664  sls_flag_file_rename(hls, old_filename);
1665  ret = hls_start(s);
1666  hls->start_pos = 0;
1667  /* When split segment by byte, the duration is short than hls_time,
1668  * so it is not enough one segment duration as hls_time, */
1669  hls->number--;
1670  }
1671  hls->number++;
1672  } else {
1673  sls_flag_file_rename(hls, old_filename);
1674  ret = hls_start(s);
1675  }
1676  av_free(old_filename);
1677 
1678  if (ret < 0) {
1679  return ret;
1680  }
1681 
1682  if ((ret = hls_window(s, 0)) < 0) {
1683  return ret;
1684  }
1685  }
1686 
1687  ret = ff_write_chained(oc, stream_index, pkt, s, 0);
1688 
1689  return ret;
1690 }
1691 
1692 static int hls_write_trailer(struct AVFormatContext *s)
1693 {
1694  HLSContext *hls = s->priv_data;
1695  AVFormatContext *oc = hls->avf;
1696  AVFormatContext *vtt_oc = hls->vtt_avf;
1697  char *old_filename = av_strdup(hls->avf->filename);
1698 
1699  if (!old_filename) {
1700  return AVERROR(ENOMEM);
1701  }
1702 
1703 
1704  av_write_trailer(oc);
1705  if (oc->pb) {
1706  hls->size = avio_tell(hls->avf->pb) - hls->start_pos;
1707  ff_format_io_close(s, &oc->pb);
1708 
1709  if ((hls->flags & HLS_TEMP_FILE) && oc->filename[0]) {
1710  hls_rename_temp_file(s, oc);
1711  }
1712 
1713  /* after av_write_trailer, then duration + 1 duration per packet */
1714  hls_append_segment(s, hls, hls->duration + hls->dpp, hls->start_pos, hls->size);
1715  }
1716 
1717  sls_flag_file_rename(hls, old_filename);
1718 
1719  if (vtt_oc) {
1720  if (vtt_oc->pb)
1721  av_write_trailer(vtt_oc);
1722  hls->size = avio_tell(hls->vtt_avf->pb) - hls->start_pos;
1723  ff_format_io_close(s, &vtt_oc->pb);
1724  }
1725  av_freep(&hls->basename);
1727  av_freep(&hls->key_basename);
1729 
1730  hls->avf = NULL;
1731  hls_window(s, 1);
1732 
1733  if (vtt_oc) {
1734  av_freep(&hls->vtt_basename);
1735  av_freep(&hls->vtt_m3u8_name);
1736  avformat_free_context(vtt_oc);
1737  }
1738 
1741  av_free(old_filename);
1742  return 0;
1743 }
1744 
1745 #define OFFSET(x) offsetof(HLSContext, x)
1746 #define E AV_OPT_FLAG_ENCODING_PARAM
1747 static const AVOption options[] = {
1748  {"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
1749  {"hls_time", "set segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
1750  {"hls_init_time", "set segment length in seconds at init list", OFFSET(init_time), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0, FLT_MAX, E},
1751  {"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
1752  {"hls_ts_options","set hls mpegts list of options for the container format used for hls", OFFSET(format_options_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1753  {"hls_vtt_options","set hls vtt list of options for the container format used for hls", OFFSET(vtt_format_options_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1754 #if FF_API_HLS_WRAP
1755  {"hls_wrap", "set number after which the index wraps (will be deprecated)", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
1756 #endif
1757  {"hls_allow_cache", "explicitly set whether the client MAY (1) or MUST NOT (0) cache media segments", OFFSET(allowcache), AV_OPT_TYPE_INT, {.i64 = -1}, INT_MIN, INT_MAX, E},
1758  {"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1759  {"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1760  {"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
1761  {"hls_key_info_file", "file with key URI and key file path", OFFSET(key_info_file), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1762  {"hls_enc", "enable AES128 encryption support", OFFSET(encrypt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E},
1763  {"hls_enc_key", "hex-coded 16 byte key to encrypt the segments", OFFSET(key), AV_OPT_TYPE_STRING, .flags = E},
1764  {"hls_enc_key_url", "url to access the key to decrypt the segments", OFFSET(key_url), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1765  {"hls_enc_iv", "hex-coded 16 byte initialization vector", OFFSET(iv), AV_OPT_TYPE_STRING, .flags = E},
1766  {"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1767  {"hls_segment_type", "set hls segment files type", OFFSET(segment_type), AV_OPT_TYPE_INT, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, SEGMENT_TYPE_FMP4, E, "segment_type"},
1768  {"mpegts", "make segment file to mpegts files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, UINT_MAX, E, "segment_type"},
1769  {"fmp4", "make segment file to fragment mp4 files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_FMP4 }, 0, UINT_MAX, E, "segment_type"},
1770  {"hls_fmp4_init_filename", "set fragment mp4 file init filename", OFFSET(fmp4_init_filename), AV_OPT_TYPE_STRING, {.str = "init.mp4"}, 0, 0, E},
1771  {"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
1772  {"single_file", "generate a single media file indexed with byte ranges", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SINGLE_FILE }, 0, UINT_MAX, E, "flags"},
1773  {"temp_file", "write segment to temporary file and rename when complete", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_TEMP_FILE }, 0, UINT_MAX, E, "flags"},
1774  {"delete_segments", "delete segment files that are no longer part of the playlist", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DELETE_SEGMENTS }, 0, UINT_MAX, E, "flags"},
1775  {"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, "flags"},
1776  {"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, "flags"},
1777  {"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, "flags"},
1778  {"split_by_time", "split the hls segment by time which user set by hls_time", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SPLIT_BY_TIME }, 0, UINT_MAX, E, "flags"},
1779  {"append_list", "append the new segments into old hls segment list", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_APPEND_LIST }, 0, UINT_MAX, E, "flags"},
1780  {"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
1781  {"second_level_segment_index", "include segment index in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_INDEX }, 0, UINT_MAX, E, "flags"},
1782  {"second_level_segment_duration", "include segment duration in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_DURATION }, 0, UINT_MAX, E, "flags"},
1783  {"second_level_segment_size", "include segment size in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_SIZE }, 0, UINT_MAX, E, "flags"},
1784  {"use_localtime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
1785  {"use_localtime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
1786  {"hls_playlist_type", "set the HLS playlist type", OFFSET(pl_type), AV_OPT_TYPE_INT, {.i64 = PLAYLIST_TYPE_NONE }, 0, PLAYLIST_TYPE_NB-1, E, "pl_type" },
1787  {"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, "pl_type" },
1788  {"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, "pl_type" },
1789  {"method", "set the HTTP method(default: PUT)", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1790  {"hls_start_number_source", "set source of first number in sequence", OFFSET(start_sequence_source_type), AV_OPT_TYPE_INT, {.i64 = HLS_START_SEQUENCE_AS_START_NUMBER }, 0, HLS_START_SEQUENCE_AS_FORMATTED_DATETIME, E, "start_sequence_source_type" },
1791  {"generic", "start_number value (default)", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_START_NUMBER }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
1792  {"epoch", "seconds since epoch", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
1793  {"datetime", "current datetime as YYYYMMDDhhmmss", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_FORMATTED_DATETIME }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
1794  { NULL },
1795 };
1796 
1797 static const AVClass hls_class = {
1798  .class_name = "hls muxer",
1799  .item_name = av_default_item_name,
1800  .option = options,
1801  .version = LIBAVUTIL_VERSION_INT,
1802 };
1803 
1804 
1806  .name = "hls",
1807  .long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
1808  .extensions = "m3u8",
1809  .priv_data_size = sizeof(HLSContext),
1810  .audio_codec = AV_CODEC_ID_AAC,
1811  .video_codec = AV_CODEC_ID_H264,
1812  .subtitle_codec = AV_CODEC_ID_WEBVTT,
1817  .priv_class = &hls_class,
1818 };
float time
Definition: hlsenc.c:114
static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int unqueue)
Definition: ffmpeg.c:671
static void write_m3u8_head_block(HLSContext *hls, AVIOContext *out, int version, int target_duration, int64_t sequence)
Definition: hlsenc.c:973
#define NULL
Definition: coverity.c:32
const char const char void * val
Definition: avisynth_c.h:771
char key_uri[LINE_BUFFER_SIZE+1]
Definition: hlsenc.c:167
const char * s
Definition: avisynth_c.h:768
Bytestream IO Context.
Definition: avio.h:161
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
static av_const int av_isdigit(int c)
Locale-independent conversion of ASCII isdigit.
Definition: avstring.h:206
char * basename
Definition: hlsenc.c:149
PlaylistType
Definition: hlsenc.c:95
AVIOInterruptCB interrupt_callback
Custom interrupt callbacks for the I/O layer.
Definition: avformat.h:1605
AVOption.
Definition: opt.h:246
static int hls_write_trailer(struct AVFormatContext *s)
Definition: hlsenc.c:1692
int av_write_frame(AVFormatContext *s, AVPacket *pkt)
Write a packet to an output media file.
Definition: mux.c:927
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
#define LIBAVUTIL_VERSION_INT
Definition: version.h:86
else temp
Definition: vf_mcdeint.c:259
void avpriv_set_pts_info(AVStream *s, int pts_wrap_bits, unsigned int pts_num, unsigned int pts_den)
Set the time base and wrapping info for a given stream.
Definition: utils.c:4739
double duration
Definition: hlsenc.c:63
char * av_stristr(const char *s1, const char *s2)
Locate the first case-independent occurrence in the string haystack of the string needle...
Definition: avstring.c:56
static int replace_int_data_in_filename(char *buf, int buf_size, const char *filename, char placeholder, int64_t number)
Definition: hlsenc.c:216
int ff_write_chained(AVFormatContext *dst, int dst_stream, AVPacket *pkt, AVFormatContext *src, int interleave)
Write a packet to another muxer than the one the user originally intended.
Definition: mux.c:1372
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: avcodec.h:4129
char * vtt_format_options_str
Definition: hlsenc.c:155
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown)
Definition: avformat.h:959
char * key_basename
Definition: hlsenc.c:163
int64_t size
Definition: hlsenc.c:66
int num
Numerator.
Definition: rational.h:59
int use_localtime_mkdir
flag to mkdir dirname in timebased filename
Definition: hlsenc.c:128
int av_dict_count(const AVDictionary *m)
Get number of entries in dictionary.
Definition: dict.c:35
const char * b
Definition: vf_curves.c:113
static int mkdir_p(const char *path)
Definition: hlsenc.c:183
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
Definition: aviobuf.c:239
#define AVIO_FLAG_READ
read-only
Definition: avio.h:643
static av_const int av_isspace(int c)
Locale-independent conversion of ASCII isspace.
Definition: avstring.h:222
#define AVIO_FLAG_WRITE
write-only
Definition: avio.h:644
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags)
Copy entries from one AVDictionary struct into another.
Definition: dict.c:217
static int do_encrypt(AVFormatContext *s)
Definition: hlsenc.c:399
int version
Definition: avisynth_c.h:766
int fmp4_init_mode
Definition: hlsenc.c:125
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:222
static AVPacket pkt
#define AVFMT_ALLOW_FLUSH
Format allows flushing.
Definition: avformat.h:495
static int hls_window(AVFormatContext *s, int last)
Definition: hlsenc.c:1000
Format I/O context.
Definition: avformat.h:1349
int max_nb_segments
Definition: hlsenc.c:116
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
#define AV_WB64(p, v)
Definition: intreadwrite.h:438
int av_stristart(const char *str, const char *pfx, const char **ptr)
Return non-zero if pfx is a prefix of str independent of case.
Definition: avstring.c:45
char * iv
Definition: hlsenc.c:162
const char * av_basename(const char *path)
Thread safe basename.
Definition: avstring.c:257
int new_start
Definition: hlsenc.c:133
uint8_t
static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls, double duration, int64_t pos, int64_t size)
Definition: hlsenc.c:778
#define av_malloc(s)
float init_time
Definition: hlsenc.c:115
AVOptions.
enum AVCodecID av_codec_get_id(const struct AVCodecTag *const *tags, unsigned int tag)
Get the AVCodecID for the given codec tag tag.
miscellaneous OS support macros and functions.
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: avcodec.h:1689
static void hls_free_segments(HLSSegment *p)
Definition: hlsenc.c:949
HLSSegment * old_segments
Definition: hlsenc.c:147
int64_t end_pts
Definition: hlsenc.c:136
void ff_format_io_close(AVFormatContext *s, AVIOContext **pb)
Definition: utils.c:5451
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
Definition: utils.c:4369
AVStream ** streams
A list of all streams in the file.
Definition: avformat.h:1417
int64_t duration
Definition: movenc.c:63
int discont
Definition: hlsenc.c:64
char * protocol_whitelist
',' separated list of allowed protocols.
Definition: avformat.h:1887
static int flags
Definition: log.c:57
#define AVERROR_EOF
End of file.
Definition: error.h:55
char * format_options_str
Definition: hlsenc.c:154
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
#define LINE_BUFFER_SIZE
Definition: hlsenc.c:57
ptrdiff_t size
Definition: opengl_enc.c:101
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
Definition: avio.h:548
char * key
Definition: hlsenc.c:160
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
Definition: aviobuf.c:211
static av_always_inline void ffio_wfourcc(AVIOContext *pb, const uint8_t *s)
Definition: avio_internal.h:66
static int sls_flags_filename_process(struct AVFormatContext *s, HLSContext *hls, HLSSegment *en, double duration, int64_t pos, int64_t size)
Definition: hlsenc.c:628
#define av_log(a,...)
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
Definition: aviobuf.c:630
struct AVOutputFormat * oformat
The output container format.
Definition: avformat.h:1368
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
Definition: avcodec.h:4158
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1703
char * base_output_dirname
Definition: hlsenc.c:150
int avformat_alloc_output_context2(AVFormatContext **ctx, AVOutputFormat *oformat, const char *format_name, const char *filename)
Allocate an AVFormatContext for an output format.
Definition: mux.c:148
static const AVOption options[]
Definition: hlsenc.c:1747
double initial_prog_date_time
Definition: hlsenc.c:174
static int hls_write_header(AVFormatContext *s)
Definition: hlsenc.c:1309
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:2279
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
AVDictionary * metadata
Metadata that applies to the whole file.
Definition: avformat.h:1567
#define OFFSET(x)
Definition: hlsenc.c:1745
av_default_item_name
#define AVERROR(e)
Definition: error.h:43
struct HLSSegment * next
Definition: hlsenc.c:71
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
int avio_close(AVIOContext *s)
Close the resource accessed by the AVIOContext s and free it.
Definition: aviobuf.c:1105
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
char sub_filename[1024]
Definition: hlsenc.c:62
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:203
enum AVMediaType codec_type
General type of the encoded data.
Definition: avcodec.h:4125
AVDictionary * vtt_format_options
Definition: hlsenc.c:170
Definition: graph2dot.c:48
#define wrap(func)
Definition: neontest.h:65
simple assert() macros that are a bit more flexible than ISO C assert().
int has_video
Definition: hlsenc.c:131
double duration
Definition: hlsenc.c:137
static av_always_inline av_const double round(double x)
Definition: libm.h:444
#define FF_API_HLS_WRAP
Definition: version.h:89
char key_uri[LINE_BUFFER_SIZE+1]
Definition: hlsenc.c:68
int64_t recording_time
Definition: hlsenc.c:130
#define FFMAX(a, b)
Definition: common.h:94
size_t av_strlcpy(char *dst, const char *src, size_t size)
Copy the string src to dst, but no more than size - 1 bytes, and null-terminate dst.
Definition: avstring.c:83
#define fail()
Definition: checkasm.h:98
static void write_styp(AVIOContext *pb)
Definition: hlsenc.c:268
int64_t pos
Definition: hlsenc.c:65
char * vtt_basename
Definition: hlsenc.c:151
static struct tm * gmtime_r(const time_t *clock, struct tm *result)
Definition: time_internal.h:26
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1677
int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b)
Compare two timestamps each in its own time base.
Definition: mathematics.c:147
void * opaque
User data.
Definition: avformat.h:1833
static int get_int_from_double(double val)
Definition: hlsenc.c:178
char * baseurl
Definition: hlsenc.c:153
static void set_http_options(AVFormatContext *s, AVDictionary **options, HLSContext *c)
Definition: hlsenc.c:960
char * av_asprintf(const char *fmt,...)
Definition: avstring.c:113
Definition: hls.c:67
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
Definition: avformat.h:1405
int discontinuity_set
Definition: hlsenc.c:142
StartSequenceSourceType
Definition: hlsenc.c:50
static int sls_flag_check_duration_size_index(HLSContext *hls)
Definition: hlsenc.c:674
unsigned number
Definition: hlsenc.c:104
char key_string[KEYSIZE *2+1]
Definition: hlsenc.c:168
#define HLS_MICROSECOND_UNIT
Definition: hlsenc.c:58
static int randomize(uint8_t *buf, int len)
Definition: hlsenc.c:385
int64_t max_seg_size
Definition: hlsenc.c:140
char filename[1024]
input or output filename
Definition: avformat.h:1425
#define AV_TIME_BASE
Internal time base represented as integer.
Definition: avutil.h:254
av_warn_unused_result int avformat_write_header(AVFormatContext *s, AVDictionary **options)
Allocate the stream private data and write the stream header to an output media file.
Definition: mux.c:528
int av_strcasecmp(const char *a, const char *b)
Locale-independent case-insensitive compare.
Definition: avstring.c:213
static struct tm * localtime_r(const time_t *clock, struct tm *result)
Definition: time_internal.h:37
int64_t start_pts
Definition: hlsenc.c:135
static int write_trailer(AVFormatContext *s1)
Definition: v4l2enc.c:94
#define AVFMT_GLOBALHEADER
Format wants global header.
Definition: avformat.h:485
static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition: hlsenc.c:1560
const char * name
Definition: avformat.h:524
HLSSegment * last_segment
Definition: hlsenc.c:146
int discontinuity
Definition: hlsenc.c:143
#define E
Definition: hlsenc.c:1746
AVDictionary * metadata
Definition: avformat.h:961
AVOutputFormat * av_guess_format(const char *short_name, const char *filename, const char *mime_type)
Return the output format in the list of registered output formats which best matches the provided par...
Definition: format.c:98
HLSSegment * segments
Definition: hlsenc.c:145
AVDictionary * format_options
Definition: hlsenc.c:157
int ff_get_line(AVIOContext *s, char *buf, int maxlen)
Read a whole line of text from AVIOContext.
Definition: aviobuf.c:791
const AVClass * priv_class
AVClass for the private context.
Definition: avformat.h:552
av_warn_unused_result int avformat_init_output(AVFormatContext *s, AVDictionary **options)
Allocate the stream private data and initialize the codec, but do not write the header.
Definition: mux.c:500
static int read_chomp_line(AVIOContext *s, char *buf, int maxlen)
Definition: hlsenc.c:520
static void sls_flag_file_rename(HLSContext *hls, char *old_filename)
Definition: hlsenc.c:717
int use_localtime
flag to expand filename with localtime
Definition: hlsenc.c:127
Stream structure.
Definition: avformat.h:889
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
int av_dict_parse_string(AVDictionary **pm, const char *str, const char *key_val_sep, const char *pairs_sep, int flags)
Parse the key/value pairs list and add the parsed entries to a dictionary.
Definition: dict.c:180
char * key_url
Definition: hlsenc.c:161
char iv_string[KEYSIZE *2+1]
Definition: hlsenc.c:69
int64_t start_sequence
Definition: hlsenc.c:106
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:237
static int sls_flag_use_localtime_filename(AVFormatContext *oc, HLSContext *c)
Definition: hlsenc.c:724
int has_subtitle
Definition: hlsenc.c:132
#define AV_TIME_BASE_Q
Internal time base represented as fractional value.
Definition: avutil.h:260
AVIOContext * pb
I/O context.
Definition: avformat.h:1391
static int hls_encryption_start(AVFormatContext *s)
Definition: hlsenc.c:468
const struct AVCodecTag *const * codec_tag
List of supported codec_id-codec_tag pairs, ordered by "better choice first".
Definition: avformat.h:549
char * key_info_file
Definition: hlsenc.c:165
AVOutputFormat * oformat
Definition: hlsenc.c:108
double dpp
Definition: hlsenc.c:134
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
char * method
Definition: hlsenc.c:172
char * fmp4_init_filename
Definition: hlsenc.c:123
void * buf
Definition: avisynth_c.h:690
int allowcache
Definition: hlsenc.c:129
int segment_type
Definition: hlsenc.c:124
HLSFlags
Definition: hlsenc.c:74
static int ff_rename(const char *oldpath, const char *newpath, void *logctx)
Wrap errno on rename() error.
Definition: internal.h:543
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
Describe the class of an AVClass context structure.
Definition: log.h:67
static void hls_rename_temp_file(AVFormatContext *s, AVFormatContext *oc)
Definition: hlsenc.c:989
int encrypt
Definition: hlsenc.c:159
char iv_string[KEYSIZE *2+1]
Definition: hlsenc.c:169
#define snprintf
Definition: snprintf.h:34
void avformat_free_context(AVFormatContext *s)
Free an AVFormatContext and all its streams.
Definition: utils.c:4304
int64_t sequence
Definition: hlsenc.c:105
int ffio_open_whitelist(AVIOContext **s, const char *url, int flags, const AVIOInterruptCB *int_cb, AVDictionary **options, const char *whitelist, const char *blacklist)
Definition: aviobuf.c:1074
misc parsing utilities
size_t av_strlcat(char *dst, const char *src, size_t size)
Append the string src to the string dst, but to a total length of no more than size - 1 bytes...
Definition: avstring.c:93
const char * avio_find_protocol_name(const char *url)
Return the name of the protocol that will handle the passed URL.
Definition: avio.c:471
char key_file[LINE_BUFFER_SIZE+1]
Definition: hlsenc.c:166
static int hls_mux_init(AVFormatContext *s)
Definition: hlsenc.c:528
static HLSSegment * find_segment_by_filename(HLSSegment *segment, const char *filename)
Definition: hlsenc.c:618
int64_t size
Definition: hlsenc.c:139
static const char * get_default_pattern_localtime_fmt(AVFormatContext *s)
Definition: hlsenc.c:1293
char current_segment_final_filename_fmt[1024]
Definition: hlsenc.c:175
SegmentType
Definition: hlsenc.c:90
uint32_t pl_type
Definition: hlsenc.c:121
int av_strstart(const char *str, const char *pfx, const char **ptr)
Return non-zero if pfx is a prefix of str.
Definition: avstring.c:34
int nb_entries
Definition: hlsenc.c:141
Main libavformat public API header.
int
#define AVFMT_NOFILE
Demuxer will use avio_open, no opened file should be provided by the caller.
Definition: avformat.h:478
static double c[64]
const char * av_dirname(char *path)
Thread safe dirname.
Definition: avstring.c:274
uint32_t flags
Definition: hlsenc.c:120
static int hls_delete_old_segments(AVFormatContext *s, HLSContext *hls)
Definition: hlsenc.c:278
int pts_wrap_bits
number of bits in pts (used for wrapping control)
Definition: avformat.h:1055
int den
Denominator.
Definition: rational.h:60
static int parse_playlist(AVFormatContext *s, const char *url)
Definition: hlsenc.c:864
#define KEYSIZE
Definition: hlsenc.c:56
int64_t start_pos
Definition: hlsenc.c:138
char * segment_filename
Definition: hlsenc.c:122
#define av_free(p)
int len
char * vtt_m3u8_name
Definition: hlsenc.c:152
uint32_t start_sequence_source_type
Definition: hlsenc.c:107
char filename[1024]
Definition: hlsenc.c:61
static int hls_start(AVFormatContext *s)
Definition: hlsenc.c:1137
void * priv_data
Format private data.
Definition: avformat.h:1377
char * subtitle_filename
Definition: hlsenc.c:156
static const uint8_t start_sequence[]
Definition: rtpdec_h264.c:65
static void write_header(FFV1Context *f)
Definition: ffv1enc.c:337
#define lrint
Definition: tablegen.h:53
AVFormatContext * avf
Definition: hlsenc.c:111
AVOutputFormat ff_hls_muxer
Definition: hlsenc.c:1805
int av_write_trailer(AVFormatContext *s)
Write the stream trailer to an output media file and free the file private data.
Definition: mux.c:1301
void avio_wb32(AVIOContext *s, unsigned int val)
Definition: aviobuf.c:375
char * protocol_blacklist
',' separated list of disallowed protocols.
Definition: avformat.h:1922
FILE * out
Definition: movenc.c:54
#define av_freep(p)
#define AVERROR_MUXER_NOT_FOUND
Muxer not found.
Definition: error.h:60
AVCodecParameters * codecpar
Definition: avformat.h:1252
int avio_feof(AVIOContext *s)
feof() equivalent for AVIOContext.
Definition: aviobuf.c:349
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: avcodec.h:4133
AVOutputFormat * vtt_oformat
Definition: hlsenc.c:109
static int sls_flag_check_duration_size(HLSContext *hls)
Definition: hlsenc.c:697
int stream_index
Definition: avcodec.h:1673
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avformat.h:926
static const AVClass hls_class
Definition: hlsenc.c:1797
unsigned int av_codec_get_tag(const struct AVCodecTag *const *tags, enum AVCodecID id)
Get the codec tag for the given codec id id.
int(* io_open)(struct AVFormatContext *s, AVIOContext **pb, const char *url, int flags, AVDictionary **options)
Definition: avformat.h:1909
char * ff_data_to_hex(char *buf, const uint8_t *src, int size, int lowercase)
Definition: utils.c:4690
This structure stores compressed data.
Definition: avcodec.h:1648
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:449
void(* io_close)(struct AVFormatContext *s, AVIOContext *pb)
A callback for closing the streams opened with AVFormatContext.io_open().
Definition: avformat.h:1915
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1664
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
int avio_printf(AVIOContext *s, const char *fmt,...) av_printf_format(2
AVFormatContext * vtt_avf
Definition: hlsenc.c:112