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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 #define HLS_MICROSECOND_UNIT 1000000
51 
52 typedef struct HLSSegment {
53  char filename[1024];
54  char sub_filename[1024];
55  double duration; /* in seconds */
56  int discont;
57  int64_t pos;
58  int64_t size;
59 
61  char iv_string[KEYSIZE*2 + 1];
62 
63  struct HLSSegment *next;
64 } HLSSegment;
65 
66 typedef enum HLSFlags {
67  // Generate a single media file and use byte ranges in the playlist.
68  HLS_SINGLE_FILE = (1 << 0),
69  HLS_DELETE_SEGMENTS = (1 << 1),
70  HLS_ROUND_DURATIONS = (1 << 2),
71  HLS_DISCONT_START = (1 << 3),
72  HLS_OMIT_ENDLIST = (1 << 4),
73  HLS_SPLIT_BY_TIME = (1 << 5),
74  HLS_APPEND_LIST = (1 << 6),
76  HLS_SECOND_LEVEL_SEGMENT_INDEX = (1 << 8), // include segment index in segment filenames when use_localtime e.g.: %%03d
77  HLS_SECOND_LEVEL_SEGMENT_DURATION = (1 << 9), // include segment duration (microsec) in segment filenames when use_localtime e.g.: %%09t
78  HLS_SECOND_LEVEL_SEGMENT_SIZE = (1 << 10), // include segment size (bytes) in segment filenames when use_localtime e.g.: %%014s
79  HLS_TEMP_FILE = (1 << 11),
80 } HLSFlags;
81 
82 typedef enum {
87 } PlaylistType;
88 
89 typedef struct HLSContext {
90  const AVClass *class; // Class for private options.
91  unsigned number;
92  int64_t sequence;
93  int64_t start_sequence;
94  uint32_t start_sequence_source_type; // enum StartSequenceSourceType
97 
100 
101  float time; // Set by a private option.
102  float init_time; // Set by a private option.
103  int max_nb_segments; // Set by a private option.
104 #if FF_API_HLS_WRAP
105  int wrap; // Set by a private option.
106 #endif
107  uint32_t flags; // enum HLSFlags
108  uint32_t pl_type; // enum PlaylistType
110 
111  int use_localtime; ///< flag to expand filename with localtime
112  int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
114  int64_t recording_time;
118  double dpp; // duration per packet
119  int64_t start_pts;
120  int64_t end_pts;
121  double duration; // last segment duration computed so far, in seconds
122  int64_t start_pos; // last segment starting position
123  int64_t size; // last segment size
124  int64_t max_seg_size; // every segment file max size
128 
132 
133  char *basename;
136  char *baseurl;
141 
145  char key_string[KEYSIZE*2 + 1];
146  char iv_string[KEYSIZE*2 + 1];
148 
149  char *method;
150 
152  char current_segment_final_filename_fmt[1024]; // when renaming segments
153 } HLSContext;
154 
155 static int get_int_from_double(double val)
156 {
157  return (int)((val - (int)val) >= 0.001) ? (int)(val + 1) : (int)val;
158 }
159 
160 static int mkdir_p(const char *path) {
161  int ret = 0;
162  char *temp = av_strdup(path);
163  char *pos = temp;
164  char tmp_ch = '\0';
165 
166  if (!path || !temp) {
167  return -1;
168  }
169 
170  if (!strncmp(temp, "/", 1) || !strncmp(temp, "\\", 1)) {
171  pos++;
172  } else if (!strncmp(temp, "./", 2) || !strncmp(temp, ".\\", 2)) {
173  pos += 2;
174  }
175 
176  for ( ; *pos != '\0'; ++pos) {
177  if (*pos == '/' || *pos == '\\') {
178  tmp_ch = *pos;
179  *pos = '\0';
180  ret = mkdir(temp, 0755);
181  *pos = tmp_ch;
182  }
183  }
184 
185  if ((*(pos - 1) != '/') || (*(pos - 1) != '\\')) {
186  ret = mkdir(temp, 0755);
187  }
188 
189  av_free(temp);
190  return ret;
191 }
192 
193 static int replace_int_data_in_filename(char *buf, int buf_size, const char *filename, char placeholder, int64_t number)
194 {
195  const char *p;
196  char *q, buf1[20], c;
197  int nd, len, addchar_count;
198  int found_count = 0;
199 
200  q = buf;
201  p = filename;
202  for (;;) {
203  c = *p;
204  if (c == '\0')
205  break;
206  if (c == '%' && *(p+1) == '%') // %%
207  addchar_count = 2;
208  else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) {
209  nd = 0;
210  addchar_count = 1;
211  while (av_isdigit(*(p + addchar_count))) {
212  nd = nd * 10 + *(p + addchar_count) - '0';
213  addchar_count++;
214  }
215 
216  if (*(p + addchar_count) == placeholder) {
217  len = snprintf(buf1, sizeof(buf1), "%0*"PRId64, (number < 0) ? nd : nd++, number);
218  if (len < 1) // returned error or empty buf1
219  goto fail;
220  if ((q - buf + len) > buf_size - 1)
221  goto fail;
222  memcpy(q, buf1, len);
223  q += len;
224  p += (addchar_count + 1);
225  addchar_count = 0;
226  found_count++;
227  }
228 
229  } else
230  addchar_count = 1;
231 
232  while (addchar_count--)
233  if ((q - buf) < buf_size - 1)
234  *q++ = *p++;
235  else
236  goto fail;
237  }
238  *q = '\0';
239  return found_count;
240 fail:
241  *q = '\0';
242  return -1;
243 }
244 
246 
247  HLSSegment *segment, *previous_segment = NULL;
248  float playlist_duration = 0.0f;
249  int ret = 0, path_size, sub_path_size;
250  char *dirname = NULL, *p, *sub_path;
251  char *path = NULL;
253  AVIOContext *out = NULL;
254  const char *proto = NULL;
255 
256  segment = hls->segments;
257  while (segment) {
258  playlist_duration += segment->duration;
259  segment = segment->next;
260  }
261 
262  segment = hls->old_segments;
263  while (segment) {
264  playlist_duration -= segment->duration;
265  previous_segment = segment;
266  segment = previous_segment->next;
267  if (playlist_duration <= -previous_segment->duration) {
268  previous_segment->next = NULL;
269  break;
270  }
271  }
272 
273  if (segment && !hls->use_localtime_mkdir) {
274  if (hls->segment_filename) {
275  dirname = av_strdup(hls->segment_filename);
276  } else {
277  dirname = av_strdup(hls->avf->filename);
278  }
279  if (!dirname) {
280  ret = AVERROR(ENOMEM);
281  goto fail;
282  }
283  p = (char *)av_basename(dirname);
284  *p = '\0';
285  }
286 
287  while (segment) {
288  av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n",
289  segment->filename);
290  path_size = (hls->use_localtime_mkdir ? 0 : strlen(dirname)) + strlen(segment->filename) + 1;
291  path = av_malloc(path_size);
292  if (!path) {
293  ret = AVERROR(ENOMEM);
294  goto fail;
295  }
296 
297  if (hls->use_localtime_mkdir)
298  av_strlcpy(path, segment->filename, path_size);
299  else { // segment->filename contains basename only
300  av_strlcpy(path, dirname, path_size);
301  av_strlcat(path, segment->filename, path_size);
302  }
303 
304  proto = avio_find_protocol_name(s->filename);
305  if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
306  av_dict_set(&options, "method", "DELETE", 0);
307  if ((ret = hls->avf->io_open(hls->avf, &out, path, AVIO_FLAG_WRITE, &options)) < 0)
308  goto fail;
309  ff_format_io_close(hls->avf, &out);
310  } else if (unlink(path) < 0) {
311  av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
312  path, strerror(errno));
313  }
314 
315  if ((segment->sub_filename[0] != '\0')) {
316  sub_path_size = strlen(segment->sub_filename) + 1 + (dirname ? strlen(dirname) : 0);
317  sub_path = av_malloc(sub_path_size);
318  if (!sub_path) {
319  ret = AVERROR(ENOMEM);
320  goto fail;
321  }
322 
323  av_strlcpy(sub_path, dirname, sub_path_size);
324  av_strlcat(sub_path, segment->sub_filename, sub_path_size);
325 
326  if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
327  av_dict_set(&options, "method", "DELETE", 0);
328  if ((ret = hls->avf->io_open(hls->avf, &out, sub_path, AVIO_FLAG_WRITE, &options)) < 0) {
329  av_free(sub_path);
330  goto fail;
331  }
332  ff_format_io_close(hls->avf, &out);
333  } else if (unlink(sub_path) < 0) {
334  av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
335  sub_path, strerror(errno));
336  }
337  av_free(sub_path);
338  }
339  av_freep(&path);
340  previous_segment = segment;
341  segment = previous_segment->next;
342  av_free(previous_segment);
343  }
344 
345 fail:
346  av_free(path);
347  av_free(dirname);
348 
349  return ret;
350 }
351 
353 {
354  HLSContext *hls = s->priv_data;
355  int ret;
356  AVIOContext *pb;
357  uint8_t key[KEYSIZE];
358 
359  if ((ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, NULL)) < 0) {
360  av_log(hls, AV_LOG_ERROR,
361  "error opening key info file %s\n", hls->key_info_file);
362  return ret;
363  }
364 
365  ff_get_line(pb, hls->key_uri, sizeof(hls->key_uri));
366  hls->key_uri[strcspn(hls->key_uri, "\r\n")] = '\0';
367 
368  ff_get_line(pb, hls->key_file, sizeof(hls->key_file));
369  hls->key_file[strcspn(hls->key_file, "\r\n")] = '\0';
370 
371  ff_get_line(pb, hls->iv_string, sizeof(hls->iv_string));
372  hls->iv_string[strcspn(hls->iv_string, "\r\n")] = '\0';
373 
374  ff_format_io_close(s, &pb);
375 
376  if (!*hls->key_uri) {
377  av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
378  return AVERROR(EINVAL);
379  }
380 
381  if (!*hls->key_file) {
382  av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
383  return AVERROR(EINVAL);
384  }
385 
386  if ((ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_READ, NULL)) < 0) {
387  av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", hls->key_file);
388  return ret;
389  }
390 
391  ret = avio_read(pb, key, sizeof(key));
392  ff_format_io_close(s, &pb);
393  if (ret != sizeof(key)) {
394  av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", hls->key_file);
395  if (ret >= 0 || ret == AVERROR_EOF)
396  ret = AVERROR(EINVAL);
397  return ret;
398  }
399  ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
400 
401  return 0;
402 }
403 
404 static int read_chomp_line(AVIOContext *s, char *buf, int maxlen)
405 {
406  int len = ff_get_line(s, buf, maxlen);
407  while (len > 0 && av_isspace(buf[len - 1]))
408  buf[--len] = '\0';
409  return len;
410 }
411 
413 {
414  HLSContext *hls = s->priv_data;
415  AVFormatContext *oc;
416  AVFormatContext *vtt_oc = NULL;
417  int i, ret;
418 
419  ret = avformat_alloc_output_context2(&hls->avf, hls->oformat, NULL, NULL);
420  if (ret < 0)
421  return ret;
422  oc = hls->avf;
423 
424  oc->filename[0] = '\0';
425  oc->oformat = hls->oformat;
427  oc->max_delay = s->max_delay;
428  oc->opaque = s->opaque;
429  oc->io_open = s->io_open;
430  oc->io_close = s->io_close;
431  av_dict_copy(&oc->metadata, s->metadata, 0);
432 
433  if(hls->vtt_oformat) {
435  if (ret < 0)
436  return ret;
437  vtt_oc = hls->vtt_avf;
438  vtt_oc->oformat = hls->vtt_oformat;
439  av_dict_copy(&vtt_oc->metadata, s->metadata, 0);
440  }
441 
442  for (i = 0; i < s->nb_streams; i++) {
443  AVStream *st;
444  AVFormatContext *loc;
446  loc = vtt_oc;
447  else
448  loc = oc;
449 
450  if (!(st = avformat_new_stream(loc, NULL)))
451  return AVERROR(ENOMEM);
454  st->time_base = s->streams[i]->time_base;
455  av_dict_copy(&st->metadata, s->streams[i]->metadata, 0);
456  }
457  hls->start_pos = 0;
458  hls->new_start = 1;
459 
460  return 0;
461 }
462 
463 static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename)
464 {
465  while (segment) {
466  if (!av_strcasecmp(segment->filename,filename))
467  return segment;
468  segment = segment->next;
469  }
470  return (HLSSegment *) NULL;
471 }
472 
474  int64_t pos, int64_t size)
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(duration * HLS_MICROSECOND_UNIT)) < 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  return 0;
517 }
518 
520 {
521  int ret = 0;
522 
524  av_log(hls, AV_LOG_ERROR,
525  "second_level_segment_duration hls_flag requires use_localtime to be true\n");
526  ret = AVERROR(EINVAL);
527  }
529  av_log(hls, AV_LOG_ERROR,
530  "second_level_segment_size hls_flag requires use_localtime to be true\n");
531  ret = AVERROR(EINVAL);
532  }
534  av_log(hls, AV_LOG_ERROR,
535  "second_level_segment_index hls_flag requires use_localtime to be true\n");
536  ret = AVERROR(EINVAL);
537  }
538 
539  return ret;
540 }
541 
543 {
544  const char *proto = avio_find_protocol_name(hls->basename);
545  int segment_renaming_ok = proto && !strcmp(proto, "file");
546  int ret = 0;
547 
548  if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) {
549  av_log(hls, AV_LOG_ERROR,
550  "second_level_segment_duration hls_flag works only with file protocol segment names\n");
551  ret = AVERROR(EINVAL);
552  }
553  if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) {
554  av_log(hls, AV_LOG_ERROR,
555  "second_level_segment_size hls_flag works only with file protocol segment names\n");
556  ret = AVERROR(EINVAL);
557  }
558 
559  return ret;
560 }
561 
562 static void sls_flag_file_rename(HLSContext *hls, char *old_filename) {
564  strlen(hls->current_segment_final_filename_fmt)) {
565  ff_rename(old_filename, hls->avf->filename, hls);
566  }
567 }
568 
570 {
572  char * filename = av_strdup(oc->filename); // %%d will be %d after strftime
573  if (!filename)
574  return AVERROR(ENOMEM);
575  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
576 #if FF_API_HLS_WRAP
577  filename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
578 #else
579  filename, 'd', c->sequence) < 1) {
580 #endif
581  av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
582  "you can try to remove second_level_segment_index flag\n",
583  filename);
584  av_free(filename);
585  return AVERROR(EINVAL);
586  }
587  av_free(filename);
588  }
593  char * filename = av_strdup(oc->filename); // %%s will be %s after strftime
594  if (!filename)
595  return AVERROR(ENOMEM);
596  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename), filename, 's', 0) < 1) {
597  av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
598  "you can try to remove second_level_segment_size flag\n",
599  filename);
600  av_free(filename);
601  return AVERROR(EINVAL);
602  }
603  av_free(filename);
604  }
606  char * filename = av_strdup(oc->filename); // %%t will be %t after strftime
607  if (!filename)
608  return AVERROR(ENOMEM);
609  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename), filename, 't', 0) < 1) {
610  av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
611  "you can try to remove second_level_segment_time flag\n",
612  filename);
613  av_free(filename);
614  return AVERROR(EINVAL);
615  }
616  av_free(filename);
617  }
618  }
619  return 0;
620 }
621 
622 /* Create a new segment and append it to the segment list */
623 static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls, double duration,
624  int64_t pos, int64_t size)
625 {
626  HLSSegment *en = av_malloc(sizeof(*en));
627  const char *filename;
628  int ret;
629 
630  if (!en)
631  return AVERROR(ENOMEM);
632 
633  ret = sls_flags_filename_process(s, hls, en, duration, pos, size);
634  if (ret < 0) {
635  return ret;
636  }
637 
638  filename = av_basename(hls->avf->filename);
639 
640  if (hls->use_localtime_mkdir) {
641  filename = hls->avf->filename;
642  }
643  if (find_segment_by_filename(hls->segments, filename)
644  || find_segment_by_filename(hls->old_segments, filename)) {
645  av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename);
646  }
647  av_strlcpy(en->filename, filename, sizeof(en->filename));
648 
649  if(hls->has_subtitle)
651  else
652  en->sub_filename[0] = '\0';
653 
654  en->duration = duration;
655  en->pos = pos;
656  en->size = size;
657  en->next = NULL;
658  en->discont = 0;
659 
660  if (hls->discontinuity) {
661  en->discont = 1;
662  hls->discontinuity = 0;
663  }
664 
665  if (hls->key_info_file) {
666  av_strlcpy(en->key_uri, hls->key_uri, sizeof(en->key_uri));
667  av_strlcpy(en->iv_string, hls->iv_string, sizeof(en->iv_string));
668  }
669 
670  if (!hls->segments)
671  hls->segments = en;
672  else
673  hls->last_segment->next = en;
674 
675  hls->last_segment = en;
676 
677  // EVENT or VOD playlists imply sliding window cannot be used
678  if (hls->pl_type != PLAYLIST_TYPE_NONE)
679  hls->max_nb_segments = 0;
680 
681  if (hls->max_nb_segments && hls->nb_entries >= hls->max_nb_segments) {
682  en = hls->segments;
683  hls->initial_prog_date_time += en->duration;
684  hls->segments = en->next;
685  if (en && hls->flags & HLS_DELETE_SEGMENTS &&
686 #if FF_API_HLS_WRAP
687  !(hls->flags & HLS_SINGLE_FILE || hls->wrap)) {
688 #else
689  !(hls->flags & HLS_SINGLE_FILE)) {
690 #endif
691  en->next = hls->old_segments;
692  hls->old_segments = en;
693  if ((ret = hls_delete_old_segments(s, hls)) < 0)
694  return ret;
695  } else
696  av_free(en);
697  } else
698  hls->nb_entries++;
699 
700  if (hls->max_seg_size > 0) {
701  return 0;
702  }
703  hls->sequence++;
704 
705  return 0;
706 }
707 
708 static int parse_playlist(AVFormatContext *s, const char *url)
709 {
710  HLSContext *hls = s->priv_data;
711  AVIOContext *in;
712  int ret = 0, is_segment = 0;
713  int64_t new_start_pos;
714  char line[1024];
715  const char *ptr;
716 
717  if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ,
720  return ret;
721 
722  read_chomp_line(in, line, sizeof(line));
723  if (strcmp(line, "#EXTM3U")) {
724  ret = AVERROR_INVALIDDATA;
725  goto fail;
726  }
727 
728  hls->discontinuity = 0;
729  while (!avio_feof(in)) {
730  read_chomp_line(in, line, sizeof(line));
731  if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
732  int64_t tmp_sequence = strtoll(ptr, NULL, 10);
733  if (tmp_sequence < hls->sequence)
734  av_log(hls, AV_LOG_VERBOSE,
735  "Found playlist sequence number was smaller """
736  "than specified start sequence number: %"PRId64" < %"PRId64", "
737  "omitting\n", tmp_sequence, hls->start_sequence);
738  else {
739  av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence);
740  hls->sequence = tmp_sequence;
741  }
742  } else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) {
743  is_segment = 1;
744  hls->discontinuity = 1;
745  } else if (av_strstart(line, "#EXTINF:", &ptr)) {
746  is_segment = 1;
747  hls->duration = atof(ptr);
748  } else if (av_strstart(line, "#", NULL)) {
749  continue;
750  } else if (line[0]) {
751  if (is_segment) {
752  is_segment = 0;
753  new_start_pos = avio_tell(hls->avf->pb);
754  hls->size = new_start_pos - hls->start_pos;
755  av_strlcpy(hls->avf->filename, line, sizeof(line));
756  ret = hls_append_segment(s, hls, hls->duration, hls->start_pos, hls->size);
757  if (ret < 0)
758  goto fail;
759  hls->start_pos = new_start_pos;
760  }
761  }
762  }
763 
764 fail:
765  avio_close(in);
766  return ret;
767 }
768 
770 {
771  HLSSegment *en;
772 
773  while(p) {
774  en = p;
775  p = p->next;
776  av_free(en);
777  }
778 }
779 
781 {
782  const char *proto = avio_find_protocol_name(s->filename);
783  int http_base_proto = proto ? (!av_strcasecmp(proto, "http") || !av_strcasecmp(proto, "https")) : 0;
784 
785  if (c->method) {
786  av_dict_set(options, "method", c->method, 0);
787  } else if (http_base_proto) {
788  av_log(c, AV_LOG_WARNING, "No HTTP method set, hls muxer defaulting to method PUT.\n");
789  av_dict_set(options, "method", "PUT", 0);
790  }
791 }
792 
794  int target_duration, int64_t sequence)
795 {
796  avio_printf(out, "#EXTM3U\n");
797  avio_printf(out, "#EXT-X-VERSION:%d\n", version);
798  if (hls->allowcache == 0 || hls->allowcache == 1) {
799  avio_printf(out, "#EXT-X-ALLOW-CACHE:%s\n", hls->allowcache == 0 ? "NO" : "YES");
800  }
801  avio_printf(out, "#EXT-X-TARGETDURATION:%d\n", target_duration);
802  avio_printf(out, "#EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
803  av_log(hls, AV_LOG_VERBOSE, "EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
804 }
805 
807 {
808  size_t len = strlen(oc->filename);
809  char final_filename[sizeof(oc->filename)];
810 
811  av_strlcpy(final_filename, oc->filename, len);
812  final_filename[len-4] = '\0';
813  ff_rename(oc->filename, final_filename, s);
814  oc->filename[len-4] = '\0';
815 }
816 
817 static int hls_window(AVFormatContext *s, int last)
818 {
819  HLSContext *hls = s->priv_data;
820  HLSSegment *en;
821  int target_duration = 0;
822  int ret = 0;
823  AVIOContext *out = NULL;
824  AVIOContext *sub_out = NULL;
825  char temp_filename[1024];
826  int64_t sequence = FFMAX(hls->start_sequence, hls->sequence - hls->nb_entries);
827  int version = 3;
828  const char *proto = avio_find_protocol_name(s->filename);
829  int use_rename = proto && !strcmp(proto, "file");
830  static unsigned warned_non_file;
831  char *key_uri = NULL;
832  char *iv_string = NULL;
834  double prog_date_time = hls->initial_prog_date_time;
835  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
836 
837  if (byterange_mode) {
838  version = 4;
839  sequence = 0;
840  }
841 
842  if (!use_rename && !warned_non_file++)
843  av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
844 
845  set_http_options(s, &options, hls);
846  snprintf(temp_filename, sizeof(temp_filename), use_rename ? "%s.tmp" : "%s", s->filename);
847  if ((ret = s->io_open(s, &out, temp_filename, AVIO_FLAG_WRITE, &options)) < 0)
848  goto fail;
849 
850  for (en = hls->segments; en; en = en->next) {
851  if (target_duration <= en->duration)
852  target_duration = get_int_from_double(en->duration);
853  }
854 
855  hls->discontinuity_set = 0;
856  write_m3u8_head_block(hls, out, version, target_duration, sequence);
857  if (hls->pl_type == PLAYLIST_TYPE_EVENT) {
858  avio_printf(out, "#EXT-X-PLAYLIST-TYPE:EVENT\n");
859  } else if (hls->pl_type == PLAYLIST_TYPE_VOD) {
860  avio_printf(out, "#EXT-X-PLAYLIST-TYPE:VOD\n");
861  }
862 
863  if((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && hls->discontinuity_set==0 ){
864  avio_printf(out, "#EXT-X-DISCONTINUITY\n");
865  hls->discontinuity_set = 1;
866  }
867  for (en = hls->segments; en; en = en->next) {
868  if (hls->key_info_file && (!key_uri || strcmp(en->key_uri, key_uri) ||
869  av_strcasecmp(en->iv_string, iv_string))) {
870  avio_printf(out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri);
871  if (*en->iv_string)
872  avio_printf(out, ",IV=0x%s", en->iv_string);
873  avio_printf(out, "\n");
874  key_uri = en->key_uri;
875  iv_string = en->iv_string;
876  }
877 
878  if (en->discont) {
879  avio_printf(out, "#EXT-X-DISCONTINUITY\n");
880  }
881 
882  if (hls->flags & HLS_ROUND_DURATIONS)
883  avio_printf(out, "#EXTINF:%ld,\n", lrint(en->duration));
884  else
885  avio_printf(out, "#EXTINF:%f,\n", en->duration);
886  if (byterange_mode)
887  avio_printf(out, "#EXT-X-BYTERANGE:%"PRIi64"@%"PRIi64"\n",
888  en->size, en->pos);
889  if (hls->flags & HLS_PROGRAM_DATE_TIME) {
890  time_t tt, wrongsecs;
891  int milli;
892  struct tm *tm, tmpbuf;
893  char buf0[128], buf1[128];
894  tt = (int64_t)prog_date_time;
895  milli = av_clip(lrint(1000*(prog_date_time - tt)), 0, 999);
896  tm = localtime_r(&tt, &tmpbuf);
897  strftime(buf0, sizeof(buf0), "%Y-%m-%dT%H:%M:%S", tm);
898  if (!strftime(buf1, sizeof(buf1), "%z", tm) || buf1[1]<'0' ||buf1[1]>'2') {
899  int tz_min, dst = tm->tm_isdst;
900  tm = gmtime_r(&tt, &tmpbuf);
901  tm->tm_isdst = dst;
902  wrongsecs = mktime(tm);
903  tz_min = (abs(wrongsecs - tt) + 30) / 60;
904  snprintf(buf1, sizeof(buf1),
905  "%c%02d%02d",
906  wrongsecs <= tt ? '+' : '-',
907  tz_min / 60,
908  tz_min % 60);
909  }
910  avio_printf(out, "#EXT-X-PROGRAM-DATE-TIME:%s.%03d%s\n", buf0, milli, buf1);
911  prog_date_time += en->duration;
912  }
913  if (hls->baseurl)
914  avio_printf(out, "%s", hls->baseurl);
915  avio_printf(out, "%s\n", en->filename);
916  }
917 
918  if (last && (hls->flags & HLS_OMIT_ENDLIST)==0)
919  avio_printf(out, "#EXT-X-ENDLIST\n");
920 
921  if( hls->vtt_m3u8_name ) {
922  if ((ret = s->io_open(s, &sub_out, hls->vtt_m3u8_name, AVIO_FLAG_WRITE, &options)) < 0)
923  goto fail;
924  write_m3u8_head_block(hls, sub_out, version, target_duration, sequence);
925 
926  for (en = hls->segments; en; en = en->next) {
927  avio_printf(sub_out, "#EXTINF:%f,\n", en->duration);
928  if (byterange_mode)
929  avio_printf(sub_out, "#EXT-X-BYTERANGE:%"PRIi64"@%"PRIi64"\n",
930  en->size, en->pos);
931  if (hls->baseurl)
932  avio_printf(sub_out, "%s", hls->baseurl);
933  avio_printf(sub_out, "%s\n", en->sub_filename);
934  }
935 
936  if (last)
937  avio_printf(sub_out, "#EXT-X-ENDLIST\n");
938 
939  }
940 
941 fail:
942  av_dict_free(&options);
943  ff_format_io_close(s, &out);
944  ff_format_io_close(s, &sub_out);
945  if (ret >= 0 && use_rename)
946  ff_rename(temp_filename, s->filename, s);
947  return ret;
948 }
949 
951 {
952  HLSContext *c = s->priv_data;
953  AVFormatContext *oc = c->avf;
954  AVFormatContext *vtt_oc = c->vtt_avf;
956  char *filename, iv_string[KEYSIZE*2 + 1];
957  int err = 0;
958 
959  if (c->flags & HLS_SINGLE_FILE) {
960  av_strlcpy(oc->filename, c->basename,
961  sizeof(oc->filename));
962  if (c->vtt_basename)
963  av_strlcpy(vtt_oc->filename, c->vtt_basename,
964  sizeof(vtt_oc->filename));
965  } else if (c->max_seg_size > 0) {
966  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
967 #if FF_API_HLS_WRAP
968  c->basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
969 #else
970  c->basename, 'd', c->sequence) < 1) {
971 #endif
972  av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -use_localtime 1 with it\n", c->basename);
973  return AVERROR(EINVAL);
974  }
975  } else {
976  if (c->use_localtime) {
977  time_t now0;
978  struct tm *tm, tmpbuf;
979  time(&now0);
980  tm = localtime_r(&now0, &tmpbuf);
981  if (!strftime(oc->filename, sizeof(oc->filename), c->basename, tm)) {
982  av_log(oc, AV_LOG_ERROR, "Could not get segment filename with use_localtime\n");
983  return AVERROR(EINVAL);
984  }
985 
986  err = sls_flag_use_localtime_filename(oc, c);
987  if (err < 0) {
988  return AVERROR(ENOMEM);
989  }
990 
991  if (c->use_localtime_mkdir) {
992  const char *dir;
993  char *fn_copy = av_strdup(oc->filename);
994  if (!fn_copy) {
995  return AVERROR(ENOMEM);
996  }
997  dir = av_dirname(fn_copy);
998  if (mkdir_p(dir) == -1 && errno != EEXIST) {
999  av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir);
1000  av_free(fn_copy);
1001  return AVERROR(errno);
1002  }
1003  av_free(fn_copy);
1004  }
1005  } else if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
1006 #if FF_API_HLS_WRAP
1007  c->basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
1008 #else
1009  c->basename, 'd', c->sequence) < 1) {
1010 #endif
1011  av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -use_localtime 1 with it\n", c->basename);
1012  return AVERROR(EINVAL);
1013  }
1014  if( c->vtt_basename) {
1015  if (replace_int_data_in_filename(vtt_oc->filename, sizeof(vtt_oc->filename),
1016 #if FF_API_HLS_WRAP
1017  c->vtt_basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
1018 #else
1019  c->vtt_basename, 'd', c->sequence) < 1) {
1020 #endif
1021  av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", c->vtt_basename);
1022  return AVERROR(EINVAL);
1023  }
1024  }
1025  }
1026  c->number++;
1027 
1028  set_http_options(s, &options, c);
1029 
1030  if (c->flags & HLS_TEMP_FILE) {
1031  av_strlcat(oc->filename, ".tmp", sizeof(oc->filename));
1032  }
1033 
1034  if (c->key_info_file) {
1035  if ((err = hls_encryption_start(s)) < 0)
1036  goto fail;
1037  if ((err = av_dict_set(&options, "encryption_key", c->key_string, 0))
1038  < 0)
1039  goto fail;
1040  err = av_strlcpy(iv_string, c->iv_string, sizeof(iv_string));
1041  if (!err)
1042  snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, c->sequence);
1043  if ((err = av_dict_set(&options, "encryption_iv", iv_string, 0)) < 0)
1044  goto fail;
1045 
1046  filename = av_asprintf("crypto:%s", oc->filename);
1047  if (!filename) {
1048  err = AVERROR(ENOMEM);
1049  goto fail;
1050  }
1051  err = s->io_open(s, &oc->pb, filename, AVIO_FLAG_WRITE, &options);
1052  av_free(filename);
1053  av_dict_free(&options);
1054  if (err < 0)
1055  return err;
1056  } else
1057  if ((err = s->io_open(s, &oc->pb, oc->filename, AVIO_FLAG_WRITE, &options)) < 0)
1058  goto fail;
1059  if (c->vtt_basename) {
1060  set_http_options(s, &options, c);
1061  if ((err = s->io_open(s, &vtt_oc->pb, vtt_oc->filename, AVIO_FLAG_WRITE, &options)) < 0)
1062  goto fail;
1063  }
1064  av_dict_free(&options);
1065 
1066  /* We only require one PAT/PMT per segment. */
1067  if (oc->oformat->priv_class && oc->priv_data) {
1068  char period[21];
1069 
1070  snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1);
1071 
1072  av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
1073  av_opt_set(oc->priv_data, "sdt_period", period, 0);
1074  av_opt_set(oc->priv_data, "pat_period", period, 0);
1075  }
1076 
1077  if (c->vtt_basename) {
1078  err = avformat_write_header(vtt_oc,NULL);
1079  if (err < 0)
1080  return err;
1081  }
1082 
1083  return 0;
1084 fail:
1085  av_dict_free(&options);
1086 
1087  return err;
1088 }
1089 
1090 static const char * get_default_pattern_localtime_fmt(void)
1091 {
1092  char b[21];
1093  time_t t = time(NULL);
1094  struct tm *p, tmbuf;
1095  p = localtime_r(&t, &tmbuf);
1096  // no %s support when strftime returned error or left format string unchanged
1097  // also no %s support on MSVC, which invokes the invalid parameter handler on unsupported format strings, instead of returning an error
1098  return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts";
1099 }
1100 
1102 {
1103  HLSContext *hls = s->priv_data;
1104  int ret, i;
1105  char *p;
1106  const char *pattern = "%d.ts";
1107  const char *pattern_localtime_fmt = get_default_pattern_localtime_fmt();
1108  const char *vtt_pattern = "%d.vtt";
1109  AVDictionary *options = NULL;
1110  int basename_size;
1111  int vtt_basename_size;
1112 
1115  time_t t = time(NULL); // we will need it in either case
1117  hls->start_sequence = (int64_t)t;
1119  char b[15];
1120  struct tm *p, tmbuf;
1121  if (!(p = localtime_r(&t, &tmbuf)))
1122  return AVERROR(ENOMEM);
1123  if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p))
1124  return AVERROR(ENOMEM);
1125  hls->start_sequence = strtoll(b, NULL, 10);
1126  }
1127  av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
1128  }
1129 
1130  hls->sequence = hls->start_sequence;
1131  hls->recording_time = (hls->init_time ? hls->init_time : hls->time) * AV_TIME_BASE;
1132  hls->start_pts = AV_NOPTS_VALUE;
1133  hls->current_segment_final_filename_fmt[0] = '\0';
1134 
1135  if (hls->flags & HLS_PROGRAM_DATE_TIME) {
1136  time_t now0;
1137  time(&now0);
1138  hls->initial_prog_date_time = now0;
1139  }
1140 
1141  if (hls->format_options_str) {
1142  ret = av_dict_parse_string(&hls->format_options, hls->format_options_str, "=", ":", 0);
1143  if (ret < 0) {
1144  av_log(s, AV_LOG_ERROR, "Could not parse format options list '%s'\n", hls->format_options_str);
1145  goto fail;
1146  }
1147  }
1148 
1149  for (i = 0; i < s->nb_streams; i++) {
1150  hls->has_video +=
1152  hls->has_subtitle +=
1154  }
1155 
1156  if (hls->has_video > 1)
1158  "More than a single video stream present, "
1159  "expect issues decoding it.\n");
1160 
1161  hls->oformat = av_guess_format("mpegts", NULL, NULL);
1162 
1163  if (!hls->oformat) {
1165  goto fail;
1166  }
1167 
1168  if(hls->has_subtitle) {
1169  hls->vtt_oformat = av_guess_format("webvtt", NULL, NULL);
1170  if (!hls->oformat) {
1172  goto fail;
1173  }
1174  }
1175 
1176  if (hls->segment_filename) {
1177  hls->basename = av_strdup(hls->segment_filename);
1178  if (!hls->basename) {
1179  ret = AVERROR(ENOMEM);
1180  goto fail;
1181  }
1182  } else {
1183  if (hls->flags & HLS_SINGLE_FILE)
1184  pattern = ".ts";
1185 
1186  if (hls->use_localtime) {
1187  basename_size = strlen(s->filename) + strlen(pattern_localtime_fmt) + 1;
1188  } else {
1189  basename_size = strlen(s->filename) + strlen(pattern) + 1;
1190  }
1191  hls->basename = av_malloc(basename_size);
1192  if (!hls->basename) {
1193  ret = AVERROR(ENOMEM);
1194  goto fail;
1195  }
1196 
1197  av_strlcpy(hls->basename, s->filename, basename_size);
1198 
1199  p = strrchr(hls->basename, '.');
1200  if (p)
1201  *p = '\0';
1202  if (hls->use_localtime) {
1203  av_strlcat(hls->basename, pattern_localtime_fmt, basename_size);
1204  } else {
1205  av_strlcat(hls->basename, pattern, basename_size);
1206  }
1207  }
1208  if (!hls->use_localtime) {
1210  if (ret < 0) {
1211  goto fail;
1212  }
1213  } else {
1214  ret = sls_flag_check_duration_size(hls);
1215  if (ret < 0) {
1216  goto fail;
1217  }
1218  }
1219  if(hls->has_subtitle) {
1220 
1221  if (hls->flags & HLS_SINGLE_FILE)
1222  vtt_pattern = ".vtt";
1223  vtt_basename_size = strlen(s->filename) + strlen(vtt_pattern) + 1;
1224  hls->vtt_basename = av_malloc(vtt_basename_size);
1225  if (!hls->vtt_basename) {
1226  ret = AVERROR(ENOMEM);
1227  goto fail;
1228  }
1229  hls->vtt_m3u8_name = av_malloc(vtt_basename_size);
1230  if (!hls->vtt_m3u8_name ) {
1231  ret = AVERROR(ENOMEM);
1232  goto fail;
1233  }
1234  av_strlcpy(hls->vtt_basename, s->filename, vtt_basename_size);
1235  p = strrchr(hls->vtt_basename, '.');
1236  if (p)
1237  *p = '\0';
1238 
1239  if( hls->subtitle_filename ) {
1240  strcpy(hls->vtt_m3u8_name, hls->subtitle_filename);
1241  } else {
1242  strcpy(hls->vtt_m3u8_name, hls->vtt_basename);
1243  av_strlcat(hls->vtt_m3u8_name, "_vtt.m3u8", vtt_basename_size);
1244  }
1245  av_strlcat(hls->vtt_basename, vtt_pattern, vtt_basename_size);
1246  }
1247 
1248  if ((ret = hls_mux_init(s)) < 0)
1249  goto fail;
1250 
1251  if (hls->flags & HLS_APPEND_LIST) {
1252  parse_playlist(s, s->filename);
1253  hls->discontinuity = 1;
1254  if (hls->init_time > 0) {
1255  av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
1256  " hls_init_time value will have no effect\n");
1257  hls->init_time = 0;
1258  hls->recording_time = hls->time * AV_TIME_BASE;
1259  }
1260  }
1261 
1262  if ((ret = hls_start(s)) < 0)
1263  goto fail;
1264 
1265  av_dict_copy(&options, hls->format_options, 0);
1266  ret = avformat_write_header(hls->avf, &options);
1267  if (av_dict_count(options)) {
1268  av_log(s, AV_LOG_ERROR, "Some of provided format options in '%s' are not recognized\n", hls->format_options_str);
1269  ret = AVERROR(EINVAL);
1270  goto fail;
1271  }
1272  //av_assert0(s->nb_streams == hls->avf->nb_streams);
1273  for (i = 0; i < s->nb_streams; i++) {
1274  AVStream *inner_st;
1275  AVStream *outer_st = s->streams[i];
1276 
1277  if (hls->max_seg_size > 0) {
1278  if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
1279  (outer_st->codecpar->bit_rate > hls->max_seg_size)) {
1280  av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, "
1281  "(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.",
1282  outer_st->codecpar->bit_rate, hls->max_seg_size);
1283  }
1284  }
1285 
1286  if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
1287  inner_st = hls->avf->streams[i];
1288  else if (hls->vtt_avf)
1289  inner_st = hls->vtt_avf->streams[0];
1290  else {
1291  /* We have a subtitle stream, when the user does not want one */
1292  inner_st = NULL;
1293  continue;
1294  }
1295  avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
1296  }
1297 fail:
1298 
1299  av_dict_free(&options);
1300  if (ret < 0) {
1301  av_freep(&hls->basename);
1302  av_freep(&hls->vtt_basename);
1303  if (hls->avf)
1304  avformat_free_context(hls->avf);
1305  if (hls->vtt_avf)
1307 
1308  }
1309  return ret;
1310 }
1311 
1313 {
1314  HLSContext *hls = s->priv_data;
1315  AVFormatContext *oc = NULL;
1316  AVStream *st = s->streams[pkt->stream_index];
1317  int64_t end_pts = hls->recording_time * hls->number;
1318  int is_ref_pkt = 1;
1319  int ret, can_split = 1;
1320  int stream_index = 0;
1321 
1322  if (hls->sequence - hls->nb_entries > hls->start_sequence && hls->init_time > 0) {
1323  /* reset end_pts, hls->recording_time at end of the init hls list */
1324  int init_list_dur = hls->init_time * hls->nb_entries * AV_TIME_BASE;
1325  int after_init_list_dur = (hls->sequence - hls->nb_entries ) * hls->time * AV_TIME_BASE;
1326  hls->recording_time = hls->time * AV_TIME_BASE;
1327  end_pts = init_list_dur + after_init_list_dur ;
1328  }
1329 
1330  if( st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE ) {
1331  oc = hls->vtt_avf;
1332  stream_index = 0;
1333  } else {
1334  oc = hls->avf;
1335  stream_index = pkt->stream_index;
1336  }
1337  if (hls->start_pts == AV_NOPTS_VALUE) {
1338  hls->start_pts = pkt->pts;
1339  hls->end_pts = pkt->pts;
1340  }
1341 
1342  if (hls->has_video) {
1343  can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
1344  ((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME));
1345  is_ref_pkt = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO;
1346  }
1347  if (pkt->pts == AV_NOPTS_VALUE)
1348  is_ref_pkt = can_split = 0;
1349 
1350  if (is_ref_pkt) {
1351  if (hls->new_start) {
1352  hls->new_start = 0;
1353  hls->duration = (double)(pkt->pts - hls->end_pts)
1354  * st->time_base.num / st->time_base.den;
1355  hls->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den;
1356  } else {
1357  if (pkt->duration) {
1358  hls->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den;
1359  } else {
1360  av_log(s, AV_LOG_WARNING, "pkt->duration = 0, maybe the hls segment duration will not precise\n");
1361  hls->duration = (double)(pkt->pts - hls->end_pts) * st->time_base.num / st->time_base.den;
1362  }
1363  }
1364 
1365  }
1366  if (can_split && av_compare_ts(pkt->pts - hls->start_pts, st->time_base,
1367  end_pts, AV_TIME_BASE_Q) >= 0) {
1368  int64_t new_start_pos;
1369  char *old_filename = av_strdup(hls->avf->filename);
1370  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1371 
1372  if (!old_filename) {
1373  return AVERROR(ENOMEM);
1374  }
1375 
1376  av_write_frame(oc, NULL); /* Flush any buffered data */
1377 
1378  new_start_pos = avio_tell(hls->avf->pb);
1379  hls->size = new_start_pos - hls->start_pos;
1380 
1381  if (!byterange_mode) {
1382  ff_format_io_close(s, &oc->pb);
1383  if (hls->vtt_avf) {
1384  ff_format_io_close(s, &hls->vtt_avf->pb);
1385  }
1386  }
1387  if ((hls->flags & HLS_TEMP_FILE) && oc->filename[0]) {
1388  if (!(hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size <= 0))
1389  if (hls->avf->oformat->priv_class && hls->avf->priv_data)
1390  av_opt_set(hls->avf->priv_data, "mpegts_flags", "resend_headers", 0);
1391  hls_rename_temp_file(s, oc);
1392  }
1393 
1394  ret = hls_append_segment(s, hls, hls->duration, hls->start_pos, hls->size);
1395  hls->start_pos = new_start_pos;
1396  if (ret < 0) {
1397  av_free(old_filename);
1398  return ret;
1399  }
1400 
1401  hls->end_pts = pkt->pts;
1402  hls->duration = 0;
1403 
1404  if (hls->flags & HLS_SINGLE_FILE) {
1405  hls->number++;
1406  } else if (hls->max_seg_size > 0) {
1407  if (hls->start_pos >= hls->max_seg_size) {
1408  hls->sequence++;
1409  sls_flag_file_rename(hls, old_filename);
1410  ret = hls_start(s);
1411  hls->start_pos = 0;
1412  /* When split segment by byte, the duration is short than hls_time,
1413  * so it is not enough one segment duration as hls_time, */
1414  hls->number--;
1415  }
1416  hls->number++;
1417  } else {
1418  sls_flag_file_rename(hls, old_filename);
1419  ret = hls_start(s);
1420  }
1421 
1422  if (ret < 0) {
1423  av_free(old_filename);
1424  return ret;
1425  }
1426 
1427  if ((ret = hls_window(s, 0)) < 0) {
1428  av_free(old_filename);
1429  return ret;
1430  }
1431  }
1432 
1433  ret = ff_write_chained(oc, stream_index, pkt, s, 0);
1434 
1435  return ret;
1436 }
1437 
1438 static int hls_write_trailer(struct AVFormatContext *s)
1439 {
1440  HLSContext *hls = s->priv_data;
1441  AVFormatContext *oc = hls->avf;
1442  AVFormatContext *vtt_oc = hls->vtt_avf;
1443  char *old_filename = av_strdup(hls->avf->filename);
1444 
1445  if (!old_filename) {
1446  return AVERROR(ENOMEM);
1447  }
1448 
1449 
1450  av_write_trailer(oc);
1451  if (oc->pb) {
1452  hls->size = avio_tell(hls->avf->pb) - hls->start_pos;
1453  ff_format_io_close(s, &oc->pb);
1454 
1455  if ((hls->flags & HLS_TEMP_FILE) && oc->filename[0]) {
1456  hls_rename_temp_file(s, oc);
1457  }
1458 
1459  /* after av_write_trailer, then duration + 1 duration per packet */
1460  hls_append_segment(s, hls, hls->duration + hls->dpp, hls->start_pos, hls->size);
1461  }
1462 
1463  sls_flag_file_rename(hls, old_filename);
1464 
1465  if (vtt_oc) {
1466  if (vtt_oc->pb)
1467  av_write_trailer(vtt_oc);
1468  hls->size = avio_tell(hls->vtt_avf->pb) - hls->start_pos;
1469  ff_format_io_close(s, &vtt_oc->pb);
1470  }
1471  av_freep(&hls->basename);
1473 
1474  hls->avf = NULL;
1475  hls_window(s, 1);
1476 
1477  if (vtt_oc) {
1478  av_freep(&hls->vtt_basename);
1479  av_freep(&hls->vtt_m3u8_name);
1480  avformat_free_context(vtt_oc);
1481  }
1482 
1485  av_free(old_filename);
1486  return 0;
1487 }
1488 
1489 #define OFFSET(x) offsetof(HLSContext, x)
1490 #define E AV_OPT_FLAG_ENCODING_PARAM
1491 static const AVOption options[] = {
1492  {"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
1493  {"hls_time", "set segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
1494  {"hls_init_time", "set segment length in seconds at init list", OFFSET(init_time), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0, FLT_MAX, E},
1495  {"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
1496  {"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},
1497  {"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},
1498 #if FF_API_HLS_WRAP
1499  {"hls_wrap", "set number after which the index wraps (will be deprecated)", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
1500 #endif
1501  {"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},
1502  {"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1503  {"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1504  {"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
1505  {"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},
1506  {"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1507  {"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
1508  {"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"},
1509  {"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"},
1510  {"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"},
1511  {"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, "flags"},
1512  {"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, "flags"},
1513  {"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, "flags"},
1514  {"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"},
1515  {"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"},
1516  {"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
1517  {"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"},
1518  {"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"},
1519  {"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"},
1520  {"use_localtime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
1521  {"use_localtime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
1522  {"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" },
1523  {"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, "pl_type" },
1524  {"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, "pl_type" },
1525  {"method", "set the HTTP method(default: PUT)", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1526  {"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" },
1527  {"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" },
1528  {"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" },
1529  {"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" },
1530  { NULL },
1531 };
1532 
1533 static const AVClass hls_class = {
1534  .class_name = "hls muxer",
1535  .item_name = av_default_item_name,
1536  .option = options,
1537  .version = LIBAVUTIL_VERSION_INT,
1538 };
1539 
1540 
1542  .name = "hls",
1543  .long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
1544  .extensions = "m3u8",
1545  .priv_data_size = sizeof(HLSContext),
1546  .audio_codec = AV_CODEC_ID_AAC,
1547  .video_codec = AV_CODEC_ID_H264,
1548  .subtitle_codec = AV_CODEC_ID_WEBVTT,
1553  .priv_class = &hls_class,
1554 };
float time
Definition: hlsenc.c:101
static void write_m3u8_head_block(HLSContext *hls, AVIOContext *out, int version, int target_duration, int64_t sequence)
Definition: hlsenc.c:793
#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:144
const char * s
Definition: avisynth_c.h:768
Bytestream IO Context.
Definition: avio.h:155
#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:133
PlaylistType
Definition: hlsenc.c:82
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:1438
int av_write_frame(AVFormatContext *s, AVPacket *pkt)
Write a packet to an output media file.
Definition: mux.c:931
#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:4607
double duration
Definition: hlsenc.c:55
static int replace_int_data_in_filename(char *buf, int buf_size, const char *filename, char placeholder, int64_t number)
Definition: hlsenc.c:193
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:1377
char * vtt_format_options_str
Definition: hlsenc.c:138
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown)
Definition: avformat.h:959
int64_t size
Definition: hlsenc.c:58
int num
Numerator.
Definition: rational.h:59
int use_localtime_mkdir
flag to mkdir dirname in timebased filename
Definition: hlsenc.c:112
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:160
#define AVIO_FLAG_READ
read-only
Definition: avio.h:620
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:621
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:817
Format I/O context.
Definition: avformat.h:1349
int max_nb_segments
Definition: hlsenc.c:103
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:117
uint8_t
static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls, double duration, int64_t pos, int64_t size)
Definition: hlsenc.c:623
#define av_malloc(s)
float init_time
Definition: hlsenc.c:102
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:1665
static void hls_free_segments(HLSSegment *p)
Definition: hlsenc.c:769
HLSSegment * old_segments
Definition: hlsenc.c:131
int64_t end_pts
Definition: hlsenc.c:120
void ff_format_io_close(AVFormatContext *s, AVIOContext **pb)
Definition: utils.c:5319
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
Definition: utils.c:4237
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:56
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:137
#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:525
static int sls_flags_filename_process(struct AVFormatContext *s, HLSContext *hls, HLSSegment *en, double duration, int64_t pos, int64_t size)
Definition: hlsenc.c:473
#define av_log(a,...)
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
Definition: aviobuf.c:614
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:4085
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1679
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:1491
double initial_prog_date_time
Definition: hlsenc.c:151
static int hls_write_header(AVFormatContext *s)
Definition: hlsenc.c:1101
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:4191
#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:1489
av_default_item_name
#define AVERROR(e)
Definition: error.h:43
struct HLSSegment * next
Definition: hlsenc.c:63
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:180
int avio_close(AVIOContext *s)
Close the resource accessed by the AVIOContext s and free it.
Definition: aviobuf.c:1089
static const char * get_default_pattern_localtime_fmt(void)
Definition: hlsenc.c:1090
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
char sub_filename[1024]
Definition: hlsenc.c:54
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:4052
AVDictionary * vtt_format_options
Definition: hlsenc.c:147
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:115
double duration
Definition: hlsenc.c:121
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:60
int64_t recording_time
Definition: hlsenc.c:114
#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:89
int64_t pos
Definition: hlsenc.c:57
char * vtt_basename
Definition: hlsenc.c:134
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:1653
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:155
char * baseurl
Definition: hlsenc.c:136
static void set_http_options(AVFormatContext *s, AVDictionary **options, HLSContext *c)
Definition: hlsenc.c:780
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:126
StartSequenceSourceType
Definition: hlsenc.c:42
static int sls_flag_check_duration_size_index(HLSContext *hls)
Definition: hlsenc.c:519
unsigned number
Definition: hlsenc.c:91
char key_string[KEYSIZE *2+1]
Definition: hlsenc.c:145
#define HLS_MICROSECOND_UNIT
Definition: hlsenc.c:50
int64_t max_seg_size
Definition: hlsenc.c:124
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: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:119
static int write_trailer(AVFormatContext *s1)
Definition: v4l2enc.c:94
static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition: hlsenc.c:1312
const char * name
Definition: avformat.h:524
HLSSegment * last_segment
Definition: hlsenc.c:130
int discontinuity
Definition: hlsenc.c:127
#define E
Definition: hlsenc.c:1490
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:129
AVDictionary * format_options
Definition: hlsenc.c:140
int ff_get_line(AVIOContext *s, char *buf, int maxlen)
Read a whole line of text from AVIOContext.
Definition: aviobuf.c:775
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:404
static void sls_flag_file_rename(HLSContext *hls, char *old_filename)
Definition: hlsenc.c:562
int use_localtime
flag to expand filename with localtime
Definition: hlsenc.c:111
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:61
int64_t start_sequence
Definition: hlsenc.c:93
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:569
int has_subtitle
Definition: hlsenc.c:116
#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:352
char * key_info_file
Definition: hlsenc.c:142
AVOutputFormat * oformat
Definition: hlsenc.c:95
double dpp
Definition: hlsenc.c:118
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:149
void * buf
Definition: avisynth_c.h:690
int allowcache
Definition: hlsenc.c:113
HLSFlags
Definition: hlsenc.c:66
static int ff_rename(const char *oldpath, const char *newpath, void *logctx)
Wrap errno on rename() error.
Definition: internal.h:529
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:670
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:806
char iv_string[KEYSIZE *2+1]
Definition: hlsenc.c:146
#define snprintf
Definition: snprintf.h:34
void avformat_free_context(AVFormatContext *s)
Free an AVFormatContext and all its streams.
Definition: utils.c:4172
int64_t sequence
Definition: hlsenc.c:92
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:1058
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:143
static int hls_mux_init(AVFormatContext *s)
Definition: hlsenc.c:412
static HLSSegment * find_segment_by_filename(HLSSegment *segment, const char *filename)
Definition: hlsenc.c:463
int64_t size
Definition: hlsenc.c:123
char current_segment_final_filename_fmt[1024]
Definition: hlsenc.c:152
uint32_t pl_type
Definition: hlsenc.c:108
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:125
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:251
uint32_t flags
Definition: hlsenc.c:107
static int hls_delete_old_segments(AVFormatContext *s, HLSContext *hls)
Definition: hlsenc.c:245
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:708
#define KEYSIZE
Definition: hlsenc.c:48
int64_t start_pos
Definition: hlsenc.c:122
char * segment_filename
Definition: hlsenc.c:109
#define av_free(p)
int len
char * vtt_m3u8_name
Definition: hlsenc.c:135
uint32_t start_sequence_source_type
Definition: hlsenc.c:94
char filename[1024]
Definition: hlsenc.c:53
static int hls_start(AVFormatContext *s)
Definition: hlsenc.c:950
void * priv_data
Format private data.
Definition: avformat.h:1377
char * subtitle_filename
Definition: hlsenc.c:139
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:98
AVOutputFormat ff_hls_muxer
Definition: hlsenc.c:1541
int av_write_trailer(AVFormatContext *s)
Write the stream trailer to an output media file and free the file private data.
Definition: mux.c:1306
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:338
AVOutputFormat * vtt_oformat
Definition: hlsenc.c:96
static int sls_flag_check_duration_size(HLSContext *hls)
Definition: hlsenc.c:542
int stream_index
Definition: avcodec.h:1649
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:1533
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:4558
This structure stores compressed data.
Definition: avcodec.h:1624
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:1915
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1640
#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:99