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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 #include "libavutil/avassert.h"
30 #include "libavutil/mathematics.h"
31 #include "libavutil/parseutils.h"
32 #include "libavutil/avstring.h"
33 #include "libavutil/opt.h"
34 #include "libavutil/log.h"
36 
37 #include "avformat.h"
38 #include "avio_internal.h"
39 #include "internal.h"
40 #include "os_support.h"
41 
42 typedef enum {
47 
48 #define KEYSIZE 16
49 #define LINE_BUFFER_SIZE 1024
50 
51 typedef struct HLSSegment {
52  char filename[1024];
53  char sub_filename[1024];
54  double duration; /* in seconds */
55  int discont;
56  int64_t pos;
57  int64_t size;
58 
60  char iv_string[KEYSIZE*2 + 1];
61 
62  struct HLSSegment *next;
63 } HLSSegment;
64 
65 typedef enum HLSFlags {
66  // Generate a single media file and use byte ranges in the playlist.
67  HLS_SINGLE_FILE = (1 << 0),
68  HLS_DELETE_SEGMENTS = (1 << 1),
69  HLS_ROUND_DURATIONS = (1 << 2),
70  HLS_DISCONT_START = (1 << 3),
71  HLS_OMIT_ENDLIST = (1 << 4),
72  HLS_SPLIT_BY_TIME = (1 << 5),
73  HLS_APPEND_LIST = (1 << 6),
75  HLS_SECOND_LEVEL_SEGMENT_INDEX = (1 << 8), // include segment index in segment filenames when use_localtime e.g.: %%03d
76  HLS_SECOND_LEVEL_SEGMENT_DURATION = (1 << 9), // include segment duration (microsec) in segment filenames when use_localtime e.g.: %%09t
77  HLS_SECOND_LEVEL_SEGMENT_SIZE = (1 << 10), // include segment size (bytes) in segment filenames when use_localtime e.g.: %%014s
78 } HLSFlags;
79 
80 typedef enum {
85 } PlaylistType;
86 
87 typedef struct HLSContext {
88  const AVClass *class; // Class for private options.
89  unsigned number;
90  int64_t sequence;
91  int64_t start_sequence;
92  uint32_t start_sequence_source_type; // enum StartSequenceSourceType
95 
98 
99  float time; // Set by a private option.
100  float init_time; // Set by a private option.
101  int max_nb_segments; // Set by a private option.
102  int wrap; // Set by a private option.
103  uint32_t flags; // enum HLSFlags
104  uint32_t pl_type; // enum PlaylistType
106 
107  int use_localtime; ///< flag to expand filename with localtime
108  int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
110  int64_t recording_time;
114  double dpp; // duration per packet
115  int64_t start_pts;
116  int64_t end_pts;
117  double duration; // last segment duration computed so far, in seconds
118  int64_t start_pos; // last segment starting position
119  int64_t size; // last segment size
120  int64_t max_seg_size; // every segment file max size
124 
128 
129  char *basename;
132  char *baseurl;
137 
141  char key_string[KEYSIZE*2 + 1];
142  char iv_string[KEYSIZE*2 + 1];
144 
145  char *method;
146 
148  char current_segment_final_filename_fmt[1024]; // when renaming segments
149 } HLSContext;
150 
151 static int get_int_from_double(double val)
152 {
153  return (int)((val - (int)val) >= 0.001) ? (int)(val + 1) : (int)val;
154 }
155 
156 static int mkdir_p(const char *path) {
157  int ret = 0;
158  char *temp = av_strdup(path);
159  char *pos = temp;
160  char tmp_ch = '\0';
161 
162  if (!path || !temp) {
163  return -1;
164  }
165 
166  if (!strncmp(temp, "/", 1) || !strncmp(temp, "\\", 1)) {
167  pos++;
168  } else if (!strncmp(temp, "./", 2) || !strncmp(temp, ".\\", 2)) {
169  pos += 2;
170  }
171 
172  for ( ; *pos != '\0'; ++pos) {
173  if (*pos == '/' || *pos == '\\') {
174  tmp_ch = *pos;
175  *pos = '\0';
176  ret = mkdir(temp, 0755);
177  *pos = tmp_ch;
178  }
179  }
180 
181  if ((*(pos - 1) != '/') || (*(pos - 1) != '\\')) {
182  ret = mkdir(temp, 0755);
183  }
184 
185  av_free(temp);
186  return ret;
187 }
188 
189 static int replace_int_data_in_filename(char *buf, int buf_size, const char *filename, char placeholder, int64_t number)
190 {
191  const char *p;
192  char *q, buf1[20], c;
193  int nd, len, addchar_count;
194  int found_count = 0;
195 
196  q = buf;
197  p = filename;
198  for (;;) {
199  c = *p;
200  if (c == '\0')
201  break;
202  if (c == '%' && *(p+1) == '%') // %%
203  addchar_count = 2;
204  else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) {
205  nd = 0;
206  addchar_count = 1;
207  while (av_isdigit(*(p + addchar_count))) {
208  nd = nd * 10 + *(p + addchar_count) - '0';
209  addchar_count++;
210  }
211 
212  if (*(p + addchar_count) == placeholder) {
213  len = snprintf(buf1, sizeof(buf1), "%0*"PRId64, (number < 0) ? nd : nd++, number);
214  if (len < 1) // returned error or empty buf1
215  goto fail;
216  if ((q - buf + len) > buf_size - 1)
217  goto fail;
218  memcpy(q, buf1, len);
219  q += len;
220  p += (addchar_count + 1);
221  addchar_count = 0;
222  found_count++;
223  }
224 
225  } else
226  addchar_count = 1;
227 
228  while (addchar_count--)
229  if ((q - buf) < buf_size - 1)
230  *q++ = *p++;
231  else
232  goto fail;
233  }
234  *q = '\0';
235  return found_count;
236 fail:
237  *q = '\0';
238  return -1;
239 }
240 
242 
243  HLSSegment *segment, *previous_segment = NULL;
244  float playlist_duration = 0.0f;
245  int ret = 0, path_size, sub_path_size;
246  char *dirname = NULL, *p, *sub_path;
247  char *path = NULL;
249  AVIOContext *out = NULL;
250 
251  segment = hls->segments;
252  while (segment) {
253  playlist_duration += segment->duration;
254  segment = segment->next;
255  }
256 
257  segment = hls->old_segments;
258  while (segment) {
259  playlist_duration -= segment->duration;
260  previous_segment = segment;
261  segment = previous_segment->next;
262  if (playlist_duration <= -previous_segment->duration) {
263  previous_segment->next = NULL;
264  break;
265  }
266  }
267 
268  if (segment && !hls->use_localtime_mkdir) {
269  if (hls->segment_filename) {
270  dirname = av_strdup(hls->segment_filename);
271  } else {
272  dirname = av_strdup(hls->avf->filename);
273  }
274  if (!dirname) {
275  ret = AVERROR(ENOMEM);
276  goto fail;
277  }
278  p = (char *)av_basename(dirname);
279  *p = '\0';
280  }
281 
282  while (segment) {
283  av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n",
284  segment->filename);
285  path_size = (hls->use_localtime_mkdir ? 0 : strlen(dirname)) + strlen(segment->filename) + 1;
286  path = av_malloc(path_size);
287  if (!path) {
288  ret = AVERROR(ENOMEM);
289  goto fail;
290  }
291 
292  if (hls->use_localtime_mkdir)
293  av_strlcpy(path, segment->filename, path_size);
294  else { // segment->filename contains basename only
295  av_strlcpy(path, dirname, path_size);
296  av_strlcat(path, segment->filename, path_size);
297  }
298 
299  if (hls->method) {
300  av_dict_set(&options, "method", "DELETE", 0);
301  if ((ret = hls->avf->io_open(hls->avf, &out, path, AVIO_FLAG_WRITE, &options)) < 0)
302  goto fail;
303  ff_format_io_close(hls->avf, &out);
304  } else if (unlink(path) < 0) {
305  av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
306  path, strerror(errno));
307  }
308 
309  if ((segment->sub_filename[0] != '\0')) {
310  sub_path_size = strlen(segment->sub_filename) + 1 + (dirname ? strlen(dirname) : 0);
311  sub_path = av_malloc(sub_path_size);
312  if (!sub_path) {
313  ret = AVERROR(ENOMEM);
314  goto fail;
315  }
316 
317  av_strlcpy(sub_path, dirname, sub_path_size);
318  av_strlcat(sub_path, segment->sub_filename, sub_path_size);
319 
320  if (hls->method) {
321  av_dict_set(&options, "method", "DELETE", 0);
322  if ((ret = hls->avf->io_open(hls->avf, &out, sub_path, AVIO_FLAG_WRITE, &options)) < 0) {
323  av_free(sub_path);
324  goto fail;
325  }
326  ff_format_io_close(hls->avf, &out);
327  } else if (unlink(sub_path) < 0) {
328  av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
329  sub_path, strerror(errno));
330  }
331  av_free(sub_path);
332  }
333  av_freep(&path);
334  previous_segment = segment;
335  segment = previous_segment->next;
336  av_free(previous_segment);
337  }
338 
339 fail:
340  av_free(path);
341  av_free(dirname);
342 
343  return ret;
344 }
345 
347 {
348  HLSContext *hls = s->priv_data;
349  int ret;
350  AVIOContext *pb;
351  uint8_t key[KEYSIZE];
352 
353  if ((ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, NULL)) < 0) {
354  av_log(hls, AV_LOG_ERROR,
355  "error opening key info file %s\n", hls->key_info_file);
356  return ret;
357  }
358 
359  ff_get_line(pb, hls->key_uri, sizeof(hls->key_uri));
360  hls->key_uri[strcspn(hls->key_uri, "\r\n")] = '\0';
361 
362  ff_get_line(pb, hls->key_file, sizeof(hls->key_file));
363  hls->key_file[strcspn(hls->key_file, "\r\n")] = '\0';
364 
365  ff_get_line(pb, hls->iv_string, sizeof(hls->iv_string));
366  hls->iv_string[strcspn(hls->iv_string, "\r\n")] = '\0';
367 
368  ff_format_io_close(s, &pb);
369 
370  if (!*hls->key_uri) {
371  av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
372  return AVERROR(EINVAL);
373  }
374 
375  if (!*hls->key_file) {
376  av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
377  return AVERROR(EINVAL);
378  }
379 
380  if ((ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_READ, NULL)) < 0) {
381  av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", hls->key_file);
382  return ret;
383  }
384 
385  ret = avio_read(pb, key, sizeof(key));
386  ff_format_io_close(s, &pb);
387  if (ret != sizeof(key)) {
388  av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", hls->key_file);
389  if (ret >= 0 || ret == AVERROR_EOF)
390  ret = AVERROR(EINVAL);
391  return ret;
392  }
393  ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
394 
395  return 0;
396 }
397 
398 static int read_chomp_line(AVIOContext *s, char *buf, int maxlen)
399 {
400  int len = ff_get_line(s, buf, maxlen);
401  while (len > 0 && av_isspace(buf[len - 1]))
402  buf[--len] = '\0';
403  return len;
404 }
405 
407 {
408  HLSContext *hls = s->priv_data;
409  AVFormatContext *oc;
410  AVFormatContext *vtt_oc = NULL;
411  int i, ret;
412 
413  ret = avformat_alloc_output_context2(&hls->avf, hls->oformat, NULL, NULL);
414  if (ret < 0)
415  return ret;
416  oc = hls->avf;
417 
418  oc->oformat = hls->oformat;
420  oc->max_delay = s->max_delay;
421  oc->opaque = s->opaque;
422  oc->io_open = s->io_open;
423  oc->io_close = s->io_close;
424  av_dict_copy(&oc->metadata, s->metadata, 0);
425 
426  if(hls->vtt_oformat) {
428  if (ret < 0)
429  return ret;
430  vtt_oc = hls->vtt_avf;
431  vtt_oc->oformat = hls->vtt_oformat;
432  av_dict_copy(&vtt_oc->metadata, s->metadata, 0);
433  }
434 
435  for (i = 0; i < s->nb_streams; i++) {
436  AVStream *st;
437  AVFormatContext *loc;
439  loc = vtt_oc;
440  else
441  loc = oc;
442 
443  if (!(st = avformat_new_stream(loc, NULL)))
444  return AVERROR(ENOMEM);
447  st->time_base = s->streams[i]->time_base;
448  }
449  hls->start_pos = 0;
450  hls->new_start = 1;
451 
452  return 0;
453 }
454 
455 static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename)
456 {
457  while (segment) {
458  if (!av_strcasecmp(segment->filename,filename))
459  return segment;
460  segment = segment->next;
461  }
462  return (HLSSegment *) NULL;
463 }
464 
465 /* Create a new segment and append it to the segment list */
466 static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls, double duration,
467  int64_t pos, int64_t size)
468 {
469  HLSSegment *en = av_malloc(sizeof(*en));
470  const char *filename;
471  int ret;
472 
473  if (!en)
474  return AVERROR(ENOMEM);
475 
477  strlen(hls->current_segment_final_filename_fmt)) {
480  char * filename = av_strdup(hls->avf->filename); // %%s will be %s after strftime
481  if (!filename) {
482  av_free(en);
483  return AVERROR(ENOMEM);
484  }
485  if (replace_int_data_in_filename(hls->avf->filename, sizeof(hls->avf->filename),
486  filename, 's', pos + size) < 1) {
487  av_log(hls, AV_LOG_ERROR,
488  "Invalid second level segment filename template '%s', "
489  "you can try to remove second_level_segment_size flag\n",
490  filename);
491  av_free(filename);
492  av_free(en);
493  return AVERROR(EINVAL);
494  }
495  av_free(filename);
496  }
498  char * filename = av_strdup(hls->avf->filename); // %%t will be %t after strftime
499  if (!filename) {
500  av_free(en);
501  return AVERROR(ENOMEM);
502  }
503  if (replace_int_data_in_filename(hls->avf->filename, sizeof(hls->avf->filename),
504  filename, 't', (int64_t)round(1000000 * duration)) < 1) {
505  av_log(hls, AV_LOG_ERROR,
506  "Invalid second level segment filename template '%s', "
507  "you can try to remove second_level_segment_time flag\n",
508  filename);
509  av_free(filename);
510  av_free(en);
511  return AVERROR(EINVAL);
512  }
513  av_free(filename);
514  }
515  }
516 
517 
518  filename = av_basename(hls->avf->filename);
519 
520  if (hls->use_localtime_mkdir) {
521  filename = hls->avf->filename;
522  }
523  if (find_segment_by_filename(hls->segments, filename)
524  || find_segment_by_filename(hls->old_segments, filename)) {
525  av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename);
526  }
527  av_strlcpy(en->filename, filename, sizeof(en->filename));
528 
529  if(hls->has_subtitle)
531  else
532  en->sub_filename[0] = '\0';
533 
534  en->duration = duration;
535  en->pos = pos;
536  en->size = size;
537  en->next = NULL;
538  en->discont = 0;
539 
540  if (hls->discontinuity) {
541  en->discont = 1;
542  hls->discontinuity = 0;
543  }
544 
545  if (hls->key_info_file) {
546  av_strlcpy(en->key_uri, hls->key_uri, sizeof(en->key_uri));
547  av_strlcpy(en->iv_string, hls->iv_string, sizeof(en->iv_string));
548  }
549 
550  if (!hls->segments)
551  hls->segments = en;
552  else
553  hls->last_segment->next = en;
554 
555  hls->last_segment = en;
556 
557  // EVENT or VOD playlists imply sliding window cannot be used
558  if (hls->pl_type != PLAYLIST_TYPE_NONE)
559  hls->max_nb_segments = 0;
560 
561  if (hls->max_nb_segments && hls->nb_entries >= hls->max_nb_segments) {
562  en = hls->segments;
563  hls->initial_prog_date_time += en->duration;
564  hls->segments = en->next;
565  if (en && hls->flags & HLS_DELETE_SEGMENTS &&
566  !(hls->flags & HLS_SINGLE_FILE || hls->wrap)) {
567  en->next = hls->old_segments;
568  hls->old_segments = en;
569  if ((ret = hls_delete_old_segments(hls)) < 0)
570  return ret;
571  } else
572  av_free(en);
573  } else
574  hls->nb_entries++;
575 
576  if (hls->max_seg_size > 0) {
577  return 0;
578  }
579  hls->sequence++;
580 
581  return 0;
582 }
583 
584 static int parse_playlist(AVFormatContext *s, const char *url)
585 {
586  HLSContext *hls = s->priv_data;
587  AVIOContext *in;
588  int ret = 0, is_segment = 0;
589  int64_t new_start_pos;
590  char line[1024];
591  const char *ptr;
592 
593  if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ,
596  return ret;
597 
598  read_chomp_line(in, line, sizeof(line));
599  if (strcmp(line, "#EXTM3U")) {
600  ret = AVERROR_INVALIDDATA;
601  goto fail;
602  }
603 
604  hls->discontinuity = 0;
605  while (!avio_feof(in)) {
606  read_chomp_line(in, line, sizeof(line));
607  if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
608  int64_t tmp_sequence = strtoll(ptr, NULL, 10);
609  if (tmp_sequence < hls->sequence)
610  av_log(hls, AV_LOG_VERBOSE,
611  "Found playlist sequence number was smaller """
612  "than specified start sequence number: %"PRId64" < %"PRId64", "
613  "omitting\n", tmp_sequence, hls->start_sequence);
614  else {
615  av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence);
616  hls->sequence = tmp_sequence;
617  }
618  } else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) {
619  is_segment = 1;
620  hls->discontinuity = 1;
621  } else if (av_strstart(line, "#EXTINF:", &ptr)) {
622  is_segment = 1;
623  hls->duration = atof(ptr);
624  } else if (av_strstart(line, "#", NULL)) {
625  continue;
626  } else if (line[0]) {
627  if (is_segment) {
628  is_segment = 0;
629  new_start_pos = avio_tell(hls->avf->pb);
630  hls->size = new_start_pos - hls->start_pos;
631  av_strlcpy(hls->avf->filename, line, sizeof(line));
632  ret = hls_append_segment(s, hls, hls->duration, hls->start_pos, hls->size);
633  if (ret < 0)
634  goto fail;
635  hls->start_pos = new_start_pos;
636  }
637  }
638  }
639 
640 fail:
641  avio_close(in);
642  return ret;
643 }
644 
646 {
647  HLSSegment *en;
648 
649  while(p) {
650  en = p;
651  p = p->next;
652  av_free(en);
653  }
654 }
655 
657 {
658  if (c->method)
659  av_dict_set(options, "method", c->method, 0);
660 }
661 
662 static int hls_window(AVFormatContext *s, int last)
663 {
664  HLSContext *hls = s->priv_data;
665  HLSSegment *en;
666  int target_duration = 0;
667  int ret = 0;
668  AVIOContext *out = NULL;
669  AVIOContext *sub_out = NULL;
670  char temp_filename[1024];
671  int64_t sequence = FFMAX(hls->start_sequence, hls->sequence - hls->nb_entries);
672  int version = 3;
673  const char *proto = avio_find_protocol_name(s->filename);
674  int use_rename = proto && !strcmp(proto, "file");
675  static unsigned warned_non_file;
676  char *key_uri = NULL;
677  char *iv_string = NULL;
679  double prog_date_time = hls->initial_prog_date_time;
680  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
681 
682  if (byterange_mode) {
683  version = 4;
684  sequence = 0;
685  }
686 
687  if (!use_rename && !warned_non_file++)
688  av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
689 
690  set_http_options(&options, hls);
691  snprintf(temp_filename, sizeof(temp_filename), use_rename ? "%s.tmp" : "%s", s->filename);
692  if ((ret = s->io_open(s, &out, temp_filename, AVIO_FLAG_WRITE, &options)) < 0)
693  goto fail;
694 
695  for (en = hls->segments; en; en = en->next) {
696  if (target_duration <= en->duration)
697  target_duration = get_int_from_double(en->duration);
698  }
699 
700  hls->discontinuity_set = 0;
701  avio_printf(out, "#EXTM3U\n");
702  avio_printf(out, "#EXT-X-VERSION:%d\n", version);
703  if (hls->allowcache == 0 || hls->allowcache == 1) {
704  avio_printf(out, "#EXT-X-ALLOW-CACHE:%s\n", hls->allowcache == 0 ? "NO" : "YES");
705  }
706  avio_printf(out, "#EXT-X-TARGETDURATION:%d\n", target_duration);
707  avio_printf(out, "#EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
708  if (hls->pl_type == PLAYLIST_TYPE_EVENT) {
709  avio_printf(out, "#EXT-X-PLAYLIST-TYPE:EVENT\n");
710  } else if (hls->pl_type == PLAYLIST_TYPE_VOD) {
711  avio_printf(out, "#EXT-X-PLAYLIST-TYPE:VOD\n");
712  }
713 
714  av_log(s, AV_LOG_VERBOSE, "EXT-X-MEDIA-SEQUENCE:%"PRId64"\n",
715  sequence);
716  if((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && hls->discontinuity_set==0 ){
717  avio_printf(out, "#EXT-X-DISCONTINUITY\n");
718  hls->discontinuity_set = 1;
719  }
720  for (en = hls->segments; en; en = en->next) {
721  if (hls->key_info_file && (!key_uri || strcmp(en->key_uri, key_uri) ||
722  av_strcasecmp(en->iv_string, iv_string))) {
723  avio_printf(out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri);
724  if (*en->iv_string)
725  avio_printf(out, ",IV=0x%s", en->iv_string);
726  avio_printf(out, "\n");
727  key_uri = en->key_uri;
728  iv_string = en->iv_string;
729  }
730 
731  if (en->discont) {
732  avio_printf(out, "#EXT-X-DISCONTINUITY\n");
733  }
734 
735  if (hls->flags & HLS_ROUND_DURATIONS)
736  avio_printf(out, "#EXTINF:%ld,\n", lrint(en->duration));
737  else
738  avio_printf(out, "#EXTINF:%f,\n", en->duration);
739  if (byterange_mode)
740  avio_printf(out, "#EXT-X-BYTERANGE:%"PRIi64"@%"PRIi64"\n",
741  en->size, en->pos);
742  if (hls->flags & HLS_PROGRAM_DATE_TIME) {
743  time_t tt, wrongsecs;
744  int milli;
745  struct tm *tm, tmpbuf;
746  char buf0[128], buf1[128];
747  tt = (int64_t)prog_date_time;
748  milli = av_clip(lrint(1000*(prog_date_time - tt)), 0, 999);
749  tm = localtime_r(&tt, &tmpbuf);
750  strftime(buf0, sizeof(buf0), "%Y-%m-%dT%H:%M:%S", tm);
751  if (!strftime(buf1, sizeof(buf1), "%z", tm) || buf1[1]<'0' ||buf1[1]>'2') {
752  int tz_min, dst = tm->tm_isdst;
753  tm = gmtime_r(&tt, &tmpbuf);
754  tm->tm_isdst = dst;
755  wrongsecs = mktime(tm);
756  tz_min = (abs(wrongsecs - tt) + 30) / 60;
757  snprintf(buf1, sizeof(buf1),
758  "%c%02d%02d",
759  wrongsecs <= tt ? '+' : '-',
760  tz_min / 60,
761  tz_min % 60);
762  }
763  avio_printf(out, "#EXT-X-PROGRAM-DATE-TIME:%s.%03d%s\n", buf0, milli, buf1);
764  prog_date_time += en->duration;
765  }
766  if (hls->baseurl)
767  avio_printf(out, "%s", hls->baseurl);
768  avio_printf(out, "%s\n", en->filename);
769  }
770 
771  if (last && (hls->flags & HLS_OMIT_ENDLIST)==0)
772  avio_printf(out, "#EXT-X-ENDLIST\n");
773 
774  if( hls->vtt_m3u8_name ) {
775  if ((ret = s->io_open(s, &sub_out, hls->vtt_m3u8_name, AVIO_FLAG_WRITE, &options)) < 0)
776  goto fail;
777  avio_printf(sub_out, "#EXTM3U\n");
778  avio_printf(sub_out, "#EXT-X-VERSION:%d\n", version);
779  if (hls->allowcache == 0 || hls->allowcache == 1) {
780  avio_printf(sub_out, "#EXT-X-ALLOW-CACHE:%s\n", hls->allowcache == 0 ? "NO" : "YES");
781  }
782  avio_printf(sub_out, "#EXT-X-TARGETDURATION:%d\n", target_duration);
783  avio_printf(sub_out, "#EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
784 
785  av_log(s, AV_LOG_VERBOSE, "EXT-X-MEDIA-SEQUENCE:%"PRId64"\n",
786  sequence);
787 
788  for (en = hls->segments; en; en = en->next) {
789  avio_printf(sub_out, "#EXTINF:%f,\n", en->duration);
790  if (byterange_mode)
791  avio_printf(sub_out, "#EXT-X-BYTERANGE:%"PRIi64"@%"PRIi64"\n",
792  en->size, en->pos);
793  if (hls->baseurl)
794  avio_printf(sub_out, "%s", hls->baseurl);
795  avio_printf(sub_out, "%s\n", en->sub_filename);
796  }
797 
798  if (last)
799  avio_printf(sub_out, "#EXT-X-ENDLIST\n");
800 
801  }
802 
803 fail:
804  av_dict_free(&options);
805  ff_format_io_close(s, &out);
806  ff_format_io_close(s, &sub_out);
807  if (ret >= 0 && use_rename)
808  ff_rename(temp_filename, s->filename, s);
809  return ret;
810 }
811 
813 {
814  HLSContext *c = s->priv_data;
815  AVFormatContext *oc = c->avf;
816  AVFormatContext *vtt_oc = c->vtt_avf;
818  char *filename, iv_string[KEYSIZE*2 + 1];
819  int err = 0;
820 
821  if (c->flags & HLS_SINGLE_FILE) {
822  av_strlcpy(oc->filename, c->basename,
823  sizeof(oc->filename));
824  if (c->vtt_basename)
825  av_strlcpy(vtt_oc->filename, c->vtt_basename,
826  sizeof(vtt_oc->filename));
827  } else if (c->max_seg_size > 0) {
828  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
829  c->basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
830  av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -use_localtime 1 with it\n", c->basename);
831  return AVERROR(EINVAL);
832  }
833  } else {
834  if (c->use_localtime) {
835  time_t now0;
836  struct tm *tm, tmpbuf;
837  time(&now0);
838  tm = localtime_r(&now0, &tmpbuf);
839  if (!strftime(oc->filename, sizeof(oc->filename), c->basename, tm)) {
840  av_log(oc, AV_LOG_ERROR, "Could not get segment filename with use_localtime\n");
841  return AVERROR(EINVAL);
842  }
844  char * filename = av_strdup(oc->filename); // %%d will be %d after strftime
845  if (!filename)
846  return AVERROR(ENOMEM);
847  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
848  filename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
849  av_log(c, AV_LOG_ERROR,
850  "Invalid second level segment filename template '%s', "
851  "you can try to remove second_level_segment_index flag\n",
852  filename);
853  av_free(filename);
854  return AVERROR(EINVAL);
855  }
856  av_free(filename);
857  }
862  char * filename = av_strdup(oc->filename); // %%s will be %s after strftime
863  if (!filename)
864  return AVERROR(ENOMEM);
865  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename), filename, 's', 0) < 1) {
866  av_log(c, AV_LOG_ERROR,
867  "Invalid second level segment filename template '%s', "
868  "you can try to remove second_level_segment_size flag\n",
869  filename);
870  av_free(filename);
871  return AVERROR(EINVAL);
872  }
873  av_free(filename);
874  }
876  char * filename = av_strdup(oc->filename); // %%t will be %t after strftime
877  if (!filename)
878  return AVERROR(ENOMEM);
879  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename), filename, 't', 0) < 1) {
880  av_log(c, AV_LOG_ERROR,
881  "Invalid second level segment filename template '%s', "
882  "you can try to remove second_level_segment_time flag\n",
883  filename);
884  av_free(filename);
885  return AVERROR(EINVAL);
886  }
887  av_free(filename);
888  }
889  }
890  if (c->use_localtime_mkdir) {
891  const char *dir;
892  char *fn_copy = av_strdup(oc->filename);
893  if (!fn_copy) {
894  return AVERROR(ENOMEM);
895  }
896  dir = av_dirname(fn_copy);
897  if (mkdir_p(dir) == -1 && errno != EEXIST) {
898  av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir);
899  av_free(fn_copy);
900  return AVERROR(errno);
901  }
902  av_free(fn_copy);
903  }
904  } else if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
905  c->basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
906  av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -use_localtime 1 with it\n", c->basename);
907  return AVERROR(EINVAL);
908  }
909  if( c->vtt_basename) {
910  if (replace_int_data_in_filename(vtt_oc->filename, sizeof(vtt_oc->filename),
911  c->vtt_basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
912  av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", c->vtt_basename);
913  return AVERROR(EINVAL);
914  }
915  }
916  }
917  c->number++;
918 
919  set_http_options(&options, c);
920 
921  if (c->key_info_file) {
922  if ((err = hls_encryption_start(s)) < 0)
923  goto fail;
924  if ((err = av_dict_set(&options, "encryption_key", c->key_string, 0))
925  < 0)
926  goto fail;
927  err = av_strlcpy(iv_string, c->iv_string, sizeof(iv_string));
928  if (!err)
929  snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, c->sequence);
930  if ((err = av_dict_set(&options, "encryption_iv", iv_string, 0)) < 0)
931  goto fail;
932 
933  filename = av_asprintf("crypto:%s", oc->filename);
934  if (!filename) {
935  err = AVERROR(ENOMEM);
936  goto fail;
937  }
938  err = s->io_open(s, &oc->pb, filename, AVIO_FLAG_WRITE, &options);
939  av_free(filename);
940  av_dict_free(&options);
941  if (err < 0)
942  return err;
943  } else
944  if ((err = s->io_open(s, &oc->pb, oc->filename, AVIO_FLAG_WRITE, &options)) < 0)
945  goto fail;
946  if (c->vtt_basename) {
947  set_http_options(&options, c);
948  if ((err = s->io_open(s, &vtt_oc->pb, vtt_oc->filename, AVIO_FLAG_WRITE, &options)) < 0)
949  goto fail;
950  }
951  av_dict_free(&options);
952 
953  /* We only require one PAT/PMT per segment. */
954  if (oc->oformat->priv_class && oc->priv_data) {
955  char period[21];
956 
957  snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1);
958 
959  av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
960  av_opt_set(oc->priv_data, "sdt_period", period, 0);
961  av_opt_set(oc->priv_data, "pat_period", period, 0);
962  }
963 
964  if (c->vtt_basename) {
965  err = avformat_write_header(vtt_oc,NULL);
966  if (err < 0)
967  return err;
968  }
969 
970  return 0;
971 fail:
972  av_dict_free(&options);
973 
974  return err;
975 }
976 
977 static const char * get_default_pattern_localtime_fmt(void)
978 {
979  char b[21];
980  time_t t = time(NULL);
981  struct tm *p, tmbuf;
982  p = localtime_r(&t, &tmbuf);
983  // no %s support when strftime returned error or left format string unchanged
984  return (!strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts";
985 }
986 
988 {
989  HLSContext *hls = s->priv_data;
990  int ret, i;
991  char *p;
992  const char *pattern = "%d.ts";
993  const char *pattern_localtime_fmt = get_default_pattern_localtime_fmt();
994  const char *vtt_pattern = "%d.vtt";
996  int basename_size;
997  int vtt_basename_size;
998 
1000  time_t t = time(NULL); // we will need it in either case
1002  hls->start_sequence = (int64_t)t;
1004  char b[15];
1005  struct tm *p, tmbuf;
1006  if (!(p = localtime_r(&t, &tmbuf)))
1007  return AVERROR(ENOMEM);
1008  if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p))
1009  return AVERROR(ENOMEM);
1010  hls->start_sequence = strtoll(b, NULL, 10);
1011  }
1012  av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
1013  }
1014 
1015  hls->sequence = hls->start_sequence;
1016  hls->recording_time = (hls->init_time ? hls->init_time : hls->time) * AV_TIME_BASE;
1017  hls->start_pts = AV_NOPTS_VALUE;
1018  hls->current_segment_final_filename_fmt[0] = '\0';
1019 
1020  if (hls->flags & HLS_PROGRAM_DATE_TIME) {
1021  time_t now0;
1022  time(&now0);
1023  hls->initial_prog_date_time = now0;
1024  }
1025 
1026  if (hls->format_options_str) {
1027  ret = av_dict_parse_string(&hls->format_options, hls->format_options_str, "=", ":", 0);
1028  if (ret < 0) {
1029  av_log(s, AV_LOG_ERROR, "Could not parse format options list '%s'\n", hls->format_options_str);
1030  goto fail;
1031  }
1032  }
1033 
1034  for (i = 0; i < s->nb_streams; i++) {
1035  hls->has_video +=
1037  hls->has_subtitle +=
1039  }
1040 
1041  if (hls->has_video > 1)
1043  "More than a single video stream present, "
1044  "expect issues decoding it.\n");
1045 
1046  hls->oformat = av_guess_format("mpegts", NULL, NULL);
1047 
1048  if (!hls->oformat) {
1050  goto fail;
1051  }
1052 
1053  if(hls->has_subtitle) {
1054  hls->vtt_oformat = av_guess_format("webvtt", NULL, NULL);
1055  if (!hls->oformat) {
1057  goto fail;
1058  }
1059  }
1060 
1061  if (hls->segment_filename) {
1062  hls->basename = av_strdup(hls->segment_filename);
1063  if (!hls->basename) {
1064  ret = AVERROR(ENOMEM);
1065  goto fail;
1066  }
1067  } else {
1068  if (hls->flags & HLS_SINGLE_FILE)
1069  pattern = ".ts";
1070 
1071  if (hls->use_localtime) {
1072  basename_size = strlen(s->filename) + strlen(pattern_localtime_fmt) + 1;
1073  } else {
1074  basename_size = strlen(s->filename) + strlen(pattern) + 1;
1075  }
1076  hls->basename = av_malloc(basename_size);
1077  if (!hls->basename) {
1078  ret = AVERROR(ENOMEM);
1079  goto fail;
1080  }
1081 
1082  av_strlcpy(hls->basename, s->filename, basename_size);
1083 
1084  p = strrchr(hls->basename, '.');
1085  if (p)
1086  *p = '\0';
1087  if (hls->use_localtime) {
1088  av_strlcat(hls->basename, pattern_localtime_fmt, basename_size);
1089  } else {
1090  av_strlcat(hls->basename, pattern, basename_size);
1091  }
1092  }
1093  if (!hls->use_localtime) {
1095  av_log(hls, AV_LOG_ERROR,
1096  "second_level_segment_duration hls_flag requires use_localtime to be true\n");
1097  ret = AVERROR(EINVAL);
1098  goto fail;
1099  }
1100  if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
1101  av_log(hls, AV_LOG_ERROR,
1102  "second_level_segment_size hls_flag requires use_localtime to be true\n");
1103  ret = AVERROR(EINVAL);
1104  goto fail;
1105  }
1107  av_log(hls, AV_LOG_ERROR,
1108  "second_level_segment_index hls_flag requires use_localtime to be true\n");
1109  ret = AVERROR(EINVAL);
1110  goto fail;
1111  }
1112  } else {
1113  const char *proto = avio_find_protocol_name(hls->basename);
1114  int segment_renaming_ok = proto && !strcmp(proto, "file");
1115 
1116  if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) {
1117  av_log(hls, AV_LOG_ERROR,
1118  "second_level_segment_duration hls_flag works only with file protocol segment names\n");
1119  ret = AVERROR(EINVAL);
1120  goto fail;
1121  }
1122  if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) {
1123  av_log(hls, AV_LOG_ERROR,
1124  "second_level_segment_size hls_flag works only with file protocol segment names\n");
1125  ret = AVERROR(EINVAL);
1126  goto fail;
1127  }
1128  }
1129  if(hls->has_subtitle) {
1130 
1131  if (hls->flags & HLS_SINGLE_FILE)
1132  vtt_pattern = ".vtt";
1133  vtt_basename_size = strlen(s->filename) + strlen(vtt_pattern) + 1;
1134  hls->vtt_basename = av_malloc(vtt_basename_size);
1135  if (!hls->vtt_basename) {
1136  ret = AVERROR(ENOMEM);
1137  goto fail;
1138  }
1139  hls->vtt_m3u8_name = av_malloc(vtt_basename_size);
1140  if (!hls->vtt_m3u8_name ) {
1141  ret = AVERROR(ENOMEM);
1142  goto fail;
1143  }
1144  av_strlcpy(hls->vtt_basename, s->filename, vtt_basename_size);
1145  p = strrchr(hls->vtt_basename, '.');
1146  if (p)
1147  *p = '\0';
1148 
1149  if( hls->subtitle_filename ) {
1150  strcpy(hls->vtt_m3u8_name, hls->subtitle_filename);
1151  } else {
1152  strcpy(hls->vtt_m3u8_name, hls->vtt_basename);
1153  av_strlcat(hls->vtt_m3u8_name, "_vtt.m3u8", vtt_basename_size);
1154  }
1155  av_strlcat(hls->vtt_basename, vtt_pattern, vtt_basename_size);
1156  }
1157 
1158  if ((ret = hls_mux_init(s)) < 0)
1159  goto fail;
1160 
1161  if (hls->flags & HLS_APPEND_LIST) {
1162  parse_playlist(s, s->filename);
1163  hls->discontinuity = 1;
1164  if (hls->init_time > 0) {
1165  av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
1166  " hls_init_time value will have no effect\n");
1167  hls->init_time = 0;
1168  hls->recording_time = hls->time * AV_TIME_BASE;
1169  }
1170  }
1171 
1172  if ((ret = hls_start(s)) < 0)
1173  goto fail;
1174 
1175  av_dict_copy(&options, hls->format_options, 0);
1176  ret = avformat_write_header(hls->avf, &options);
1177  if (av_dict_count(options)) {
1178  av_log(s, AV_LOG_ERROR, "Some of provided format options in '%s' are not recognized\n", hls->format_options_str);
1179  ret = AVERROR(EINVAL);
1180  goto fail;
1181  }
1182  //av_assert0(s->nb_streams == hls->avf->nb_streams);
1183  for (i = 0; i < s->nb_streams; i++) {
1184  AVStream *inner_st;
1185  AVStream *outer_st = s->streams[i];
1186 
1187  if (hls->max_seg_size > 0) {
1188  if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
1189  (outer_st->codecpar->bit_rate > hls->max_seg_size)) {
1190  av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, "
1191  "(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.",
1192  outer_st->codecpar->bit_rate, hls->max_seg_size);
1193  }
1194  }
1195 
1196  if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
1197  inner_st = hls->avf->streams[i];
1198  else if (hls->vtt_avf)
1199  inner_st = hls->vtt_avf->streams[0];
1200  else {
1201  /* We have a subtitle stream, when the user does not want one */
1202  inner_st = NULL;
1203  continue;
1204  }
1205  avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
1206  }
1207 fail:
1208 
1209  av_dict_free(&options);
1210  if (ret < 0) {
1211  av_freep(&hls->basename);
1212  av_freep(&hls->vtt_basename);
1213  if (hls->avf)
1214  avformat_free_context(hls->avf);
1215  if (hls->vtt_avf)
1217 
1218  }
1219  return ret;
1220 }
1221 
1223 {
1224  HLSContext *hls = s->priv_data;
1225  AVFormatContext *oc = NULL;
1226  AVStream *st = s->streams[pkt->stream_index];
1227  int64_t end_pts = hls->recording_time * hls->number;
1228  int is_ref_pkt = 1;
1229  int ret, can_split = 1;
1230  int stream_index = 0;
1231 
1232  if (hls->sequence - hls->nb_entries > hls->start_sequence && hls->init_time > 0) {
1233  /* reset end_pts, hls->recording_time at end of the init hls list */
1234  int init_list_dur = hls->init_time * hls->nb_entries * AV_TIME_BASE;
1235  int after_init_list_dur = (hls->sequence - hls->nb_entries ) * hls->time * AV_TIME_BASE;
1236  hls->recording_time = hls->time * AV_TIME_BASE;
1237  end_pts = init_list_dur + after_init_list_dur ;
1238  }
1239 
1240  if( st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE ) {
1241  oc = hls->vtt_avf;
1242  stream_index = 0;
1243  } else {
1244  oc = hls->avf;
1245  stream_index = pkt->stream_index;
1246  }
1247  if (hls->start_pts == AV_NOPTS_VALUE) {
1248  hls->start_pts = pkt->pts;
1249  hls->end_pts = pkt->pts;
1250  }
1251 
1252  if (hls->has_video) {
1253  can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
1254  ((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME));
1255  is_ref_pkt = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO;
1256  }
1257  if (pkt->pts == AV_NOPTS_VALUE)
1258  is_ref_pkt = can_split = 0;
1259 
1260  if (is_ref_pkt) {
1261  if (hls->new_start) {
1262  hls->new_start = 0;
1263  hls->duration = (double)(pkt->pts - hls->end_pts)
1264  * st->time_base.num / st->time_base.den;
1265  hls->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den;
1266  } else {
1267  hls->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den;
1268  }
1269 
1270  }
1271  if (can_split && av_compare_ts(pkt->pts - hls->start_pts, st->time_base,
1272  end_pts, AV_TIME_BASE_Q) >= 0) {
1273  int64_t new_start_pos;
1274  char *old_filename = av_strdup(hls->avf->filename);
1275 
1276  if (!old_filename) {
1277  return AVERROR(ENOMEM);
1278  }
1279 
1280  av_write_frame(oc, NULL); /* Flush any buffered data */
1281 
1282  new_start_pos = avio_tell(hls->avf->pb);
1283  hls->size = new_start_pos - hls->start_pos;
1284  ret = hls_append_segment(s, hls, hls->duration, hls->start_pos, hls->size);
1285  hls->start_pos = new_start_pos;
1286  if (ret < 0) {
1287  av_free(old_filename);
1288  return ret;
1289  }
1290 
1291  hls->end_pts = pkt->pts;
1292  hls->duration = 0;
1293 
1294  if (hls->flags & HLS_SINGLE_FILE) {
1295  if (hls->avf->oformat->priv_class && hls->avf->priv_data)
1296  av_opt_set(hls->avf->priv_data, "mpegts_flags", "resend_headers", 0);
1297  hls->number++;
1298  } else if (hls->max_seg_size > 0) {
1299  if (hls->avf->oformat->priv_class && hls->avf->priv_data)
1300  av_opt_set(hls->avf->priv_data, "mpegts_flags", "resend_headers", 0);
1301  if (hls->start_pos >= hls->max_seg_size) {
1302  hls->sequence++;
1303  ff_format_io_close(s, &oc->pb);
1305  strlen(hls->current_segment_final_filename_fmt)) {
1306  ff_rename(old_filename, hls->avf->filename, hls);
1307  }
1308  if (hls->vtt_avf)
1309  ff_format_io_close(s, &hls->vtt_avf->pb);
1310  ret = hls_start(s);
1311  hls->start_pos = 0;
1312  /* When split segment by byte, the duration is short than hls_time,
1313  * so it is not enough one segment duration as hls_time, */
1314  hls->number--;
1315  }
1316  hls->number++;
1317  } else {
1318  ff_format_io_close(s, &oc->pb);
1320  strlen(hls->current_segment_final_filename_fmt)) {
1321  ff_rename(old_filename, hls->avf->filename, hls);
1322  }
1323  if (hls->vtt_avf)
1324  ff_format_io_close(s, &hls->vtt_avf->pb);
1325 
1326  ret = hls_start(s);
1327  }
1328 
1329  if (ret < 0) {
1330  av_free(old_filename);
1331  return ret;
1332  }
1333 
1334  if ((ret = hls_window(s, 0)) < 0) {
1335  av_free(old_filename);
1336  return ret;
1337  }
1338  }
1339 
1340  ret = ff_write_chained(oc, stream_index, pkt, s, 0);
1341 
1342  return ret;
1343 }
1344 
1346 {
1347  HLSContext *hls = s->priv_data;
1348  AVFormatContext *oc = hls->avf;
1349  AVFormatContext *vtt_oc = hls->vtt_avf;
1350  char *old_filename = av_strdup(hls->avf->filename);
1351 
1352  if (!old_filename) {
1353  return AVERROR(ENOMEM);
1354  }
1355 
1356 
1357  av_write_trailer(oc);
1358  if (oc->pb) {
1359  hls->size = avio_tell(hls->avf->pb) - hls->start_pos;
1360  ff_format_io_close(s, &oc->pb);
1361  /* after av_write_trailer, then duration + 1 duration per packet */
1362  hls_append_segment(s, hls, hls->duration + hls->dpp, hls->start_pos, hls->size);
1363  }
1364 
1366  strlen(hls->current_segment_final_filename_fmt)) {
1367  ff_rename(old_filename, hls->avf->filename, hls);
1368  }
1369 
1370  if (vtt_oc) {
1371  if (vtt_oc->pb)
1372  av_write_trailer(vtt_oc);
1373  hls->size = avio_tell(hls->vtt_avf->pb) - hls->start_pos;
1374  ff_format_io_close(s, &vtt_oc->pb);
1375  }
1376  av_freep(&hls->basename);
1378 
1379  hls->avf = NULL;
1380  hls_window(s, 1);
1381 
1382  if (vtt_oc) {
1383  av_freep(&hls->vtt_basename);
1384  av_freep(&hls->vtt_m3u8_name);
1385  avformat_free_context(vtt_oc);
1386  }
1387 
1390  av_free(old_filename);
1391  return 0;
1392 }
1393 
1394 #define OFFSET(x) offsetof(HLSContext, x)
1395 #define E AV_OPT_FLAG_ENCODING_PARAM
1396 static const AVOption options[] = {
1397  {"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
1398  {"hls_time", "set segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
1399  {"hls_init_time", "set segment length in seconds at init list", OFFSET(init_time), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0, FLT_MAX, E},
1400  {"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
1401  {"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},
1402  {"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},
1403  {"hls_wrap", "set number after which the index wraps", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
1404  {"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},
1405  {"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1406  {"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1407  {"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
1408  {"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},
1409  {"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1410  {"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
1411  {"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"},
1412  {"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"},
1413  {"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, "flags"},
1414  {"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, "flags"},
1415  {"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, "flags"},
1416  {"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"},
1417  {"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"},
1418  {"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
1419  {"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"},
1420  {"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"},
1421  {"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"},
1422  {"use_localtime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
1423  {"use_localtime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
1424  {"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" },
1425  {"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, "pl_type" },
1426  {"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, "pl_type" },
1427  {"method", "set the HTTP method", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1428  {"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" },
1429  {"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" },
1430  {"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" },
1431  {"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" },
1432  { NULL },
1433 };
1434 
1435 static const AVClass hls_class = {
1436  .class_name = "hls muxer",
1437  .item_name = av_default_item_name,
1438  .option = options,
1439  .version = LIBAVUTIL_VERSION_INT,
1440 };
1441 
1442 
1444  .name = "hls",
1445  .long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
1446  .extensions = "m3u8",
1447  .priv_data_size = sizeof(HLSContext),
1448  .audio_codec = AV_CODEC_ID_AAC,
1449  .video_codec = AV_CODEC_ID_H264,
1450  .subtitle_codec = AV_CODEC_ID_WEBVTT,
1455  .priv_class = &hls_class,
1456 };
float time
Definition: hlsenc.c:99
#define NULL
Definition: coverity.c:32
int wrap
Definition: hlsenc.c:102
const char const char void * val
Definition: avisynth_c.h:771
char key_uri[LINE_BUFFER_SIZE+1]
Definition: hlsenc.c:140
const char * s
Definition: avisynth_c.h:768
Bytestream IO Context.
Definition: avio.h:147
#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:129
PlaylistType
Definition: hlsenc.c:80
AVIOInterruptCB interrupt_callback
Custom interrupt callbacks for the I/O layer.
Definition: avformat.h:1595
AVOption.
Definition: opt.h:246
static int hls_write_trailer(struct AVFormatContext *s)
Definition: hlsenc.c:1345
int av_write_frame(AVFormatContext *s, AVPacket *pkt)
Write a packet to an output media file.
Definition: mux.c:919
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
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:4585
double duration
Definition: hlsenc.c:54
static int replace_int_data_in_filename(char *buf, int buf_size, const char *filename, char placeholder, int64_t number)
Definition: hlsenc.c:189
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:1365
char * vtt_format_options_str
Definition: hlsenc.c:134
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown)
Definition: avformat.h:959
int64_t size
Definition: hlsenc.c:57
int num
Numerator.
Definition: rational.h:59
int use_localtime_mkdir
flag to mkdir dirname in timebased filename
Definition: hlsenc.c:108
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:156
#define AVIO_FLAG_READ
read-only
Definition: avio.h:606
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:607
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags)
Copy entries from one AVDictionary struct into another.
Definition: dict.c:217
int version
Definition: avisynth_c.h:766
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:662
static void set_http_options(AVDictionary **options, HLSContext *c)
Definition: hlsenc.c:656
Format I/O context.
Definition: avformat.h:1341
int max_nb_segments
Definition: hlsenc.c:101
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
const char * av_basename(const char *path)
Thread safe basename.
Definition: avstring.c:234
int new_start
Definition: hlsenc.c:113
uint8_t
static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls, double duration, int64_t pos, int64_t size)
Definition: hlsenc.c:466
#define av_malloc(s)
float init_time
Definition: hlsenc.c:100
AVOptions.
miscellaneous OS support macros and functions.
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: avcodec.h:1630
static void hls_free_segments(HLSSegment *p)
Definition: hlsenc.c:645
HLSSegment * old_segments
Definition: hlsenc.c:127
int64_t end_pts
Definition: hlsenc.c:116
void ff_format_io_close(AVFormatContext *s, AVIOContext **pb)
Definition: utils.c:5297
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
Definition: utils.c:4215
AVStream ** streams
A list of all streams in the file.
Definition: avformat.h:1409
int64_t duration
Definition: movenc.c:63
int discont
Definition: hlsenc.c:55
char * protocol_whitelist
',' separated list of allowed protocols.
Definition: avformat.h:1879
static int flags
Definition: log.c:57
#define AVERROR_EOF
End of file.
Definition: error.h:55
char * format_options_str
Definition: hlsenc.c:133
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
#define LINE_BUFFER_SIZE
Definition: hlsenc.c:49
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:511
#define av_log(a,...)
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
Definition: aviobuf.c:604
struct AVOutputFormat * oformat
The output container format.
Definition: avformat.h:1360
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
Definition: avcodec.h:4029
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1644
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:1396
double initial_prog_date_time
Definition: hlsenc.c:147
static int hls_write_header(AVFormatContext *s)
Definition: hlsenc.c:987
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:4151
#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:1557
#define OFFSET(x)
Definition: hlsenc.c:1394
av_default_item_name
#define AVERROR(e)
Definition: error.h:43
struct HLSSegment * next
Definition: hlsenc.c:62
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
int avio_close(AVIOContext *s)
Close the resource accessed by the AVIOContext s and free it.
Definition: aviobuf.c:1069
static const char * get_default_pattern_localtime_fmt(void)
Definition: hlsenc.c:977
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
char sub_filename[1024]
Definition: hlsenc.c:53
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:3996
AVDictionary * vtt_format_options
Definition: hlsenc.c:143
#define wrap(func)
Definition: neontest.h:65
Definition: graph2dot.c:48
simple assert() macros that are a bit more flexible than ISO C assert().
int has_video
Definition: hlsenc.c:111
double duration
Definition: hlsenc.c:117
static av_always_inline av_const double round(double x)
Definition: libm.h:444
char key_uri[LINE_BUFFER_SIZE+1]
Definition: hlsenc.c:59
int64_t recording_time
Definition: hlsenc.c:110
#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:84
int64_t pos
Definition: hlsenc.c:56
char * vtt_basename
Definition: hlsenc.c:130
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:1618
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:1823
static int get_int_from_double(double val)
Definition: hlsenc.c:151
char * baseurl
Definition: hlsenc.c:132
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:1397
int discontinuity_set
Definition: hlsenc.c:122
StartSequenceSourceType
Definition: hlsenc.c:42
unsigned number
Definition: hlsenc.c:89
char key_string[KEYSIZE *2+1]
Definition: hlsenc.c:141
int64_t max_seg_size
Definition: hlsenc.c:120
char filename[1024]
input or output filename
Definition: avformat.h:1417
#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:521
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:115
static int write_trailer(AVFormatContext *s1)
Definition: v4l2enc.c:94
static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition: hlsenc.c:1222
const char * name
Definition: avformat.h:524
HLSSegment * last_segment
Definition: hlsenc.c:126
int discontinuity
Definition: hlsenc.c:123
#define E
Definition: hlsenc.c:1395
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:125
AVDictionary * format_options
Definition: hlsenc.c:136
int ff_get_line(AVIOContext *s, char *buf, int maxlen)
Read a whole line of text from AVIOContext.
Definition: aviobuf.c:765
const AVClass * priv_class
AVClass for the private context.
Definition: avformat.h:552
static int read_chomp_line(AVIOContext *s, char *buf, int maxlen)
Definition: hlsenc.c:398
static int hls_delete_old_segments(HLSContext *hls)
Definition: hlsenc.c:241
int use_localtime
flag to expand filename with localtime
Definition: hlsenc.c:107
Stream structure.
Definition: avformat.h:889
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 iv_string[KEYSIZE *2+1]
Definition: hlsenc.c:60
int64_t start_sequence
Definition: hlsenc.c:91
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:267
int has_subtitle
Definition: hlsenc.c:112
#define AV_TIME_BASE_Q
Internal time base represented as fractional value.
Definition: avutil.h:260
AVIOContext * pb
I/O context.
Definition: avformat.h:1383
static int hls_encryption_start(AVFormatContext *s)
Definition: hlsenc.c:346
char * key_info_file
Definition: hlsenc.c:138
AVOutputFormat * oformat
Definition: hlsenc.c:93
double dpp
Definition: hlsenc.c:114
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:145
void * buf
Definition: avisynth_c.h:690
int allowcache
Definition: hlsenc.c:109
HLSFlags
Definition: hlsenc.c:65
static int ff_rename(const char *oldpath, const char *newpath, void *logctx)
Wrap errno on rename() error.
Definition: internal.h:524
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
static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost)
Definition: ffmpeg.c:650
Describe the class of an AVClass context structure.
Definition: log.h:67
char iv_string[KEYSIZE *2+1]
Definition: hlsenc.c:142
#define snprintf
Definition: snprintf.h:34
void avformat_free_context(AVFormatContext *s)
Free an AVFormatContext and all its streams.
Definition: utils.c:4151
int64_t sequence
Definition: hlsenc.c:90
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:1038
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:473
char key_file[LINE_BUFFER_SIZE+1]
Definition: hlsenc.c:139
static int hls_mux_init(AVFormatContext *s)
Definition: hlsenc.c:406
static HLSSegment * find_segment_by_filename(HLSSegment *segment, const char *filename)
Definition: hlsenc.c:455
int64_t size
Definition: hlsenc.c:119
char current_segment_final_filename_fmt[1024]
Definition: hlsenc.c:148
uint32_t pl_type
Definition: hlsenc.c:104
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:121
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
const char * av_dirname(char *path)
Thread safe dirname.
Definition: avstring.c:251
uint32_t flags
Definition: hlsenc.c:103
int pts_wrap_bits
number of bits in pts (used for wrapping control)
Definition: avformat.h:1053
int den
Denominator.
Definition: rational.h:60
static int parse_playlist(AVFormatContext *s, const char *url)
Definition: hlsenc.c:584
#define KEYSIZE
Definition: hlsenc.c:48
int64_t start_pos
Definition: hlsenc.c:118
char * segment_filename
Definition: hlsenc.c:105
#define av_free(p)
int len
char * vtt_m3u8_name
Definition: hlsenc.c:131
uint32_t start_sequence_source_type
Definition: hlsenc.c:92
char filename[1024]
Definition: hlsenc.c:52
static int hls_start(AVFormatContext *s)
Definition: hlsenc.c:812
void * priv_data
Format private data.
Definition: avformat.h:1369
char * subtitle_filename
Definition: hlsenc.c:135
static AVCodec * c
static const uint8_t start_sequence[]
Definition: rtpdec_h264.c:65
static void write_header(FFV1Context *f)
Definition: ffv1enc.c:344
#define lrint
Definition: tablegen.h:53
AVFormatContext * avf
Definition: hlsenc.c:96
AVOutputFormat ff_hls_muxer
Definition: hlsenc.c:1443
int av_write_trailer(AVFormatContext *s)
Write the stream trailer to an output media file and free the file private data.
Definition: mux.c:1294
char * protocol_blacklist
',' separated list of disallowed protocols.
Definition: avformat.h:1914
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:1244
int avio_feof(AVIOContext *s)
feof() equivalent for AVIOContext.
Definition: aviobuf.c:328
AVOutputFormat * vtt_oformat
Definition: hlsenc.c:94
int stream_index
Definition: avcodec.h:1614
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:1435
int(* io_open)(struct AVFormatContext *s, AVIOContext **pb, const char *url, int flags, AVDictionary **options)
Definition: avformat.h:1901
char * ff_data_to_hex(char *buf, const uint8_t *src, int size, int lowercase)
Definition: utils.c:4536
This structure stores compressed data.
Definition: avcodec.h:1589
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:451
void(* io_close)(struct AVFormatContext *s, AVIOContext *pb)
A callback for closing the streams opened with AVFormatContext.io_open().
Definition: avformat.h:1907
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1605
#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:97