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hlsenc.c
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1 /*
2  * Apple HTTP Live Streaming segmenter
3  * Copyright (c) 2012, Luca Barbato
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "config.h"
23 #include <float.h>
24 #include <stdint.h>
25 #if HAVE_UNISTD_H
26 #include <unistd.h>
27 #endif
28 
29 #if CONFIG_GCRYPT
30 #include <gcrypt.h>
31 #elif CONFIG_OPENSSL
32 #include <openssl/rand.h>
33 #endif
34 
35 #include "libavutil/avassert.h"
36 #include "libavutil/mathematics.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/avstring.h"
39 #include "libavutil/intreadwrite.h"
40 #include "libavutil/random_seed.h"
41 #include "libavutil/opt.h"
42 #include "libavutil/log.h"
44 
45 #include "avformat.h"
46 #include "avio_internal.h"
47 #include "internal.h"
48 #include "os_support.h"
49 
50 typedef enum {
55 
56 #define KEYSIZE 16
57 #define LINE_BUFFER_SIZE 1024
58 #define HLS_MICROSECOND_UNIT 1000000
59 
60 typedef struct HLSSegment {
61  char filename[1024];
62  char sub_filename[1024];
63  double duration; /* in seconds */
64  int discont;
65  int64_t pos;
66  int64_t size;
67 
69  char iv_string[KEYSIZE*2 + 1];
70 
71  struct HLSSegment *next;
72 } HLSSegment;
73 
74 typedef enum HLSFlags {
75  // Generate a single media file and use byte ranges in the playlist.
76  HLS_SINGLE_FILE = (1 << 0),
77  HLS_DELETE_SEGMENTS = (1 << 1),
78  HLS_ROUND_DURATIONS = (1 << 2),
79  HLS_DISCONT_START = (1 << 3),
80  HLS_OMIT_ENDLIST = (1 << 4),
81  HLS_SPLIT_BY_TIME = (1 << 5),
82  HLS_APPEND_LIST = (1 << 6),
84  HLS_SECOND_LEVEL_SEGMENT_INDEX = (1 << 8), // include segment index in segment filenames when use_localtime e.g.: %%03d
85  HLS_SECOND_LEVEL_SEGMENT_DURATION = (1 << 9), // include segment duration (microsec) in segment filenames when use_localtime e.g.: %%09t
86  HLS_SECOND_LEVEL_SEGMENT_SIZE = (1 << 10), // include segment size (bytes) in segment filenames when use_localtime e.g.: %%014s
87  HLS_TEMP_FILE = (1 << 11),
88  HLS_PERIODIC_REKEY = (1 << 12),
89 } HLSFlags;
90 
91 typedef enum {
94 } SegmentType;
95 
96 typedef enum {
101 } PlaylistType;
102 
103 typedef struct HLSContext {
104  const AVClass *class; // Class for private options.
105  unsigned number;
106  int64_t sequence;
107  int64_t start_sequence;
108  uint32_t start_sequence_source_type; // enum StartSequenceSourceType
111 
114 
115  float time; // Set by a private option.
116  float init_time; // Set by a private option.
117  int max_nb_segments; // Set by a private option.
118 #if FF_API_HLS_WRAP
119  int wrap; // Set by a private option.
120 #endif
121  uint32_t flags; // enum HLSFlags
122  uint32_t pl_type; // enum PlaylistType
127 
128  int use_localtime; ///< flag to expand filename with localtime
129  int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
131  int64_t recording_time;
135  double dpp; // duration per packet
136  int64_t start_pts;
137  int64_t end_pts;
138  double duration; // last segment duration computed so far, in seconds
139  int64_t start_pos; // last segment starting position
140  int64_t size; // last segment size
141  int64_t max_seg_size; // every segment file max size
145 
149 
150  char *basename;
154  char *baseurl;
159 
160  int encrypt;
161  char *key;
162  char *key_url;
163  char *iv;
165 
169  char key_string[KEYSIZE*2 + 1];
170  char iv_string[KEYSIZE*2 + 1];
172 
173  char *method;
174 
176  char current_segment_final_filename_fmt[1024]; // when renaming segments
177  char *user_agent;
178 } HLSContext;
179 
180 static int get_int_from_double(double val)
181 {
182  return (int)((val - (int)val) >= 0.001) ? (int)(val + 1) : (int)val;
183 }
184 
185 static int mkdir_p(const char *path) {
186  int ret = 0;
187  char *temp = av_strdup(path);
188  char *pos = temp;
189  char tmp_ch = '\0';
190 
191  if (!path || !temp) {
192  return -1;
193  }
194 
195  if (!strncmp(temp, "/", 1) || !strncmp(temp, "\\", 1)) {
196  pos++;
197  } else if (!strncmp(temp, "./", 2) || !strncmp(temp, ".\\", 2)) {
198  pos += 2;
199  }
200 
201  for ( ; *pos != '\0'; ++pos) {
202  if (*pos == '/' || *pos == '\\') {
203  tmp_ch = *pos;
204  *pos = '\0';
205  ret = mkdir(temp, 0755);
206  *pos = tmp_ch;
207  }
208  }
209 
210  if ((*(pos - 1) != '/') || (*(pos - 1) != '\\')) {
211  ret = mkdir(temp, 0755);
212  }
213 
214  av_free(temp);
215  return ret;
216 }
217 
218 static int replace_int_data_in_filename(char *buf, int buf_size, const char *filename, char placeholder, int64_t number)
219 {
220  const char *p;
221  char *q, buf1[20], c;
222  int nd, len, addchar_count;
223  int found_count = 0;
224 
225  q = buf;
226  p = filename;
227  for (;;) {
228  c = *p;
229  if (c == '\0')
230  break;
231  if (c == '%' && *(p+1) == '%') // %%
232  addchar_count = 2;
233  else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) {
234  nd = 0;
235  addchar_count = 1;
236  while (av_isdigit(*(p + addchar_count))) {
237  nd = nd * 10 + *(p + addchar_count) - '0';
238  addchar_count++;
239  }
240 
241  if (*(p + addchar_count) == placeholder) {
242  len = snprintf(buf1, sizeof(buf1), "%0*"PRId64, (number < 0) ? nd : nd++, number);
243  if (len < 1) // returned error or empty buf1
244  goto fail;
245  if ((q - buf + len) > buf_size - 1)
246  goto fail;
247  memcpy(q, buf1, len);
248  q += len;
249  p += (addchar_count + 1);
250  addchar_count = 0;
251  found_count++;
252  }
253 
254  } else
255  addchar_count = 1;
256 
257  while (addchar_count--)
258  if ((q - buf) < buf_size - 1)
259  *q++ = *p++;
260  else
261  goto fail;
262  }
263  *q = '\0';
264  return found_count;
265 fail:
266  *q = '\0';
267  return -1;
268 }
269 
270 static void write_styp(AVIOContext *pb)
271 {
272  avio_wb32(pb, 24);
273  ffio_wfourcc(pb, "styp");
274  ffio_wfourcc(pb, "msdh");
275  avio_wb32(pb, 0); /* minor */
276  ffio_wfourcc(pb, "msdh");
277  ffio_wfourcc(pb, "msix");
278 }
279 
281 
282  HLSSegment *segment, *previous_segment = NULL;
283  float playlist_duration = 0.0f;
284  int ret = 0, path_size, sub_path_size;
285  char *dirname = NULL, *p, *sub_path;
286  char *path = NULL;
288  AVIOContext *out = NULL;
289  const char *proto = NULL;
290 
291  segment = hls->segments;
292  while (segment) {
293  playlist_duration += segment->duration;
294  segment = segment->next;
295  }
296 
297  segment = hls->old_segments;
298  while (segment) {
299  playlist_duration -= segment->duration;
300  previous_segment = segment;
301  segment = previous_segment->next;
302  if (playlist_duration <= -previous_segment->duration) {
303  previous_segment->next = NULL;
304  break;
305  }
306  }
307 
308  if (segment && !hls->use_localtime_mkdir) {
309  if (hls->segment_filename) {
310  dirname = av_strdup(hls->segment_filename);
311  } else {
312  dirname = av_strdup(hls->avf->filename);
313  }
314  if (!dirname) {
315  ret = AVERROR(ENOMEM);
316  goto fail;
317  }
318  p = (char *)av_basename(dirname);
319  *p = '\0';
320  }
321 
322  while (segment) {
323  av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n",
324  segment->filename);
325  path_size = (hls->use_localtime_mkdir ? 0 : strlen(dirname)) + strlen(segment->filename) + 1;
326  path = av_malloc(path_size);
327  if (!path) {
328  ret = AVERROR(ENOMEM);
329  goto fail;
330  }
331 
332  if (hls->use_localtime_mkdir)
333  av_strlcpy(path, segment->filename, path_size);
334  else { // segment->filename contains basename only
335  av_strlcpy(path, dirname, path_size);
336  av_strlcat(path, segment->filename, path_size);
337  }
338 
339  proto = avio_find_protocol_name(s->filename);
340  if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
341  av_dict_set(&options, "method", "DELETE", 0);
342  if ((ret = hls->avf->io_open(hls->avf, &out, path, AVIO_FLAG_WRITE, &options)) < 0)
343  goto fail;
344  ff_format_io_close(hls->avf, &out);
345  } else if (unlink(path) < 0) {
346  av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
347  path, strerror(errno));
348  }
349 
350  if ((segment->sub_filename[0] != '\0')) {
351  sub_path_size = strlen(segment->sub_filename) + 1 + (dirname ? strlen(dirname) : 0);
352  sub_path = av_malloc(sub_path_size);
353  if (!sub_path) {
354  ret = AVERROR(ENOMEM);
355  goto fail;
356  }
357 
358  av_strlcpy(sub_path, dirname, sub_path_size);
359  av_strlcat(sub_path, segment->sub_filename, sub_path_size);
360 
361  if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
362  av_dict_set(&options, "method", "DELETE", 0);
363  if ((ret = hls->avf->io_open(hls->avf, &out, sub_path, AVIO_FLAG_WRITE, &options)) < 0) {
364  av_free(sub_path);
365  goto fail;
366  }
367  ff_format_io_close(hls->avf, &out);
368  } else if (unlink(sub_path) < 0) {
369  av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
370  sub_path, strerror(errno));
371  }
372  av_free(sub_path);
373  }
374  av_freep(&path);
375  previous_segment = segment;
376  segment = previous_segment->next;
377  av_free(previous_segment);
378  }
379 
380 fail:
381  av_free(path);
382  av_free(dirname);
383 
384  return ret;
385 }
386 
387 static int randomize(uint8_t *buf, int len)
388 {
389 #if CONFIG_GCRYPT
390  gcry_randomize(buf, len, GCRY_VERY_STRONG_RANDOM);
391  return 0;
392 #elif CONFIG_OPENSSL
393  if (RAND_bytes(buf, len))
394  return 0;
395 #else
396  return AVERROR(ENOSYS);
397 #endif
398  return AVERROR(EINVAL);
399 }
400 
402 {
403  HLSContext *hls = s->priv_data;
404  int ret;
405  int len;
406  AVIOContext *pb;
407  uint8_t key[KEYSIZE];
408 
409  len = strlen(hls->basename) + 4 + 1;
410  hls->key_basename = av_mallocz(len);
411  if (!hls->key_basename)
412  return AVERROR(ENOMEM);
413 
414  av_strlcpy(hls->key_basename, s->filename, len);
415  av_strlcat(hls->key_basename, ".key", len);
416 
417  if (hls->key_url) {
418  av_strlcpy(hls->key_file, hls->key_url, sizeof(hls->key_file));
419  av_strlcpy(hls->key_uri, hls->key_url, sizeof(hls->key_uri));
420  } else {
421  av_strlcpy(hls->key_file, hls->key_basename, sizeof(hls->key_file));
422  av_strlcpy(hls->key_uri, hls->key_basename, sizeof(hls->key_uri));
423  }
424 
425  if (!*hls->iv_string) {
426  uint8_t iv[16] = { 0 };
427  char buf[33];
428 
429  if (!hls->iv) {
430  AV_WB64(iv + 8, hls->sequence);
431  } else {
432  memcpy(iv, hls->iv, sizeof(iv));
433  }
434  ff_data_to_hex(buf, iv, sizeof(iv), 0);
435  buf[32] = '\0';
436  memcpy(hls->iv_string, buf, sizeof(hls->iv_string));
437  }
438 
439  if (!*hls->key_uri) {
440  av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
441  return AVERROR(EINVAL);
442  }
443 
444  if (!*hls->key_file) {
445  av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
446  return AVERROR(EINVAL);
447  }
448 
449  if (!*hls->key_string) {
450  if (!hls->key) {
451  if ((ret = randomize(key, sizeof(key))) < 0) {
452  av_log(s, AV_LOG_ERROR, "Cannot generate a strong random key\n");
453  return ret;
454  }
455  } else {
456  memcpy(key, hls->key, sizeof(key));
457  }
458 
459  ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
460  if ((ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_WRITE, NULL)) < 0)
461  return ret;
462  avio_seek(pb, 0, SEEK_CUR);
463  avio_write(pb, key, KEYSIZE);
464  avio_close(pb);
465  }
466  return 0;
467 }
468 
469 
471 {
472  HLSContext *hls = s->priv_data;
473  int ret;
474  AVIOContext *pb;
475  uint8_t key[KEYSIZE];
476 
477  if ((ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, NULL)) < 0) {
478  av_log(hls, AV_LOG_ERROR,
479  "error opening key info file %s\n", hls->key_info_file);
480  return ret;
481  }
482 
483  ff_get_line(pb, hls->key_uri, sizeof(hls->key_uri));
484  hls->key_uri[strcspn(hls->key_uri, "\r\n")] = '\0';
485 
486  ff_get_line(pb, hls->key_file, sizeof(hls->key_file));
487  hls->key_file[strcspn(hls->key_file, "\r\n")] = '\0';
488 
489  ff_get_line(pb, hls->iv_string, sizeof(hls->iv_string));
490  hls->iv_string[strcspn(hls->iv_string, "\r\n")] = '\0';
491 
492  ff_format_io_close(s, &pb);
493 
494  if (!*hls->key_uri) {
495  av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
496  return AVERROR(EINVAL);
497  }
498 
499  if (!*hls->key_file) {
500  av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
501  return AVERROR(EINVAL);
502  }
503 
504  if ((ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_READ, NULL)) < 0) {
505  av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", hls->key_file);
506  return ret;
507  }
508 
509  ret = avio_read(pb, key, sizeof(key));
510  ff_format_io_close(s, &pb);
511  if (ret != sizeof(key)) {
512  av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", hls->key_file);
513  if (ret >= 0 || ret == AVERROR_EOF)
514  ret = AVERROR(EINVAL);
515  return ret;
516  }
517  ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
518 
519  return 0;
520 }
521 
522 static int read_chomp_line(AVIOContext *s, char *buf, int maxlen)
523 {
524  int len = ff_get_line(s, buf, maxlen);
525  while (len > 0 && av_isspace(buf[len - 1]))
526  buf[--len] = '\0';
527  return len;
528 }
529 
531 {
533  HLSContext *hls = s->priv_data;
534  AVFormatContext *oc;
535  AVFormatContext *vtt_oc = NULL;
536  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
537  int i, ret;
538 
539  ret = avformat_alloc_output_context2(&hls->avf, hls->oformat, NULL, NULL);
540  if (ret < 0)
541  return ret;
542  oc = hls->avf;
543 
544  oc->filename[0] = '\0';
545  oc->oformat = hls->oformat;
547  oc->max_delay = s->max_delay;
548  oc->opaque = s->opaque;
549  oc->io_open = s->io_open;
550  oc->io_close = s->io_close;
551  av_dict_copy(&oc->metadata, s->metadata, 0);
552 
553  if(hls->vtt_oformat) {
555  if (ret < 0)
556  return ret;
557  vtt_oc = hls->vtt_avf;
558  vtt_oc->oformat = hls->vtt_oformat;
559  av_dict_copy(&vtt_oc->metadata, s->metadata, 0);
560  }
561 
562  for (i = 0; i < s->nb_streams; i++) {
563  AVStream *st;
564  AVFormatContext *loc;
566  loc = vtt_oc;
567  else
568  loc = oc;
569 
570  if (!(st = avformat_new_stream(loc, NULL)))
571  return AVERROR(ENOMEM);
573  if (!oc->oformat->codec_tag ||
577  } else {
578  st->codecpar->codec_tag = 0;
579  }
580 
582  st->time_base = s->streams[i]->time_base;
583  av_dict_copy(&st->metadata, s->streams[i]->metadata, 0);
584  }
585  hls->start_pos = 0;
586  hls->new_start = 1;
587  hls->fmp4_init_mode = 0;
588 
589  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
590  if (hls->max_seg_size > 0) {
591  av_log(s, AV_LOG_WARNING, "Multi-file byterange mode is currently unsupported in the HLS muxer.\n");
592  return AVERROR_PATCHWELCOME;
593  }
594  hls->fmp4_init_mode = !byterange_mode;
595  if ((ret = s->io_open(s, &oc->pb, hls->base_output_dirname, AVIO_FLAG_WRITE, NULL)) < 0) {
596  av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", hls->fmp4_init_filename);
597  return ret;
598  }
599 
600  if (hls->format_options_str) {
601  ret = av_dict_parse_string(&hls->format_options, hls->format_options_str, "=", ":", 0);
602  if (ret < 0) {
603  av_log(s, AV_LOG_ERROR, "Could not parse format options list '%s'\n",
604  hls->format_options_str);
605  return ret;
606  }
607  }
608 
609  av_dict_copy(&options, hls->format_options, 0);
610  av_dict_set(&options, "fflags", "-autobsf", 0);
611  av_dict_set(&options, "movflags", "frag_custom+dash+delay_moov", 0);
612  ret = avformat_init_output(oc, &options);
613  if (ret < 0)
614  return ret;
615  if (av_dict_count(options)) {
616  av_log(s, AV_LOG_ERROR, "Some of the provided format options in '%s' are not recognized\n", hls->format_options_str);
617  av_dict_free(&options);
618  return AVERROR(EINVAL);
619  }
620  av_dict_free(&options);
621  }
622  return 0;
623 }
624 
625 static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename)
626 {
627  while (segment) {
628  if (!av_strcasecmp(segment->filename,filename))
629  return segment;
630  segment = segment->next;
631  }
632  return (HLSSegment *) NULL;
633 }
634 
636  int64_t pos, int64_t size)
637 {
639  strlen(hls->current_segment_final_filename_fmt)) {
642  char * filename = av_strdup(hls->avf->filename); // %%s will be %s after strftime
643  if (!filename) {
644  av_free(en);
645  return AVERROR(ENOMEM);
646  }
647  if (replace_int_data_in_filename(hls->avf->filename, sizeof(hls->avf->filename),
648  filename, 's', pos + size) < 1) {
649  av_log(hls, AV_LOG_ERROR,
650  "Invalid second level segment filename template '%s', "
651  "you can try to remove second_level_segment_size flag\n",
652  filename);
653  av_free(filename);
654  av_free(en);
655  return AVERROR(EINVAL);
656  }
657  av_free(filename);
658  }
660  char * filename = av_strdup(hls->avf->filename); // %%t will be %t after strftime
661  if (!filename) {
662  av_free(en);
663  return AVERROR(ENOMEM);
664  }
665  if (replace_int_data_in_filename(hls->avf->filename, sizeof(hls->avf->filename),
666  filename, 't', (int64_t)round(duration * HLS_MICROSECOND_UNIT)) < 1) {
667  av_log(hls, AV_LOG_ERROR,
668  "Invalid second level segment filename template '%s', "
669  "you can try to remove second_level_segment_time flag\n",
670  filename);
671  av_free(filename);
672  av_free(en);
673  return AVERROR(EINVAL);
674  }
675  av_free(filename);
676  }
677  }
678  return 0;
679 }
680 
682 {
683  int ret = 0;
684 
686  av_log(hls, AV_LOG_ERROR,
687  "second_level_segment_duration hls_flag requires use_localtime to be true\n");
688  ret = AVERROR(EINVAL);
689  }
691  av_log(hls, AV_LOG_ERROR,
692  "second_level_segment_size hls_flag requires use_localtime to be true\n");
693  ret = AVERROR(EINVAL);
694  }
696  av_log(hls, AV_LOG_ERROR,
697  "second_level_segment_index hls_flag requires use_localtime to be true\n");
698  ret = AVERROR(EINVAL);
699  }
700 
701  return ret;
702 }
703 
705 {
706  const char *proto = avio_find_protocol_name(hls->basename);
707  int segment_renaming_ok = proto && !strcmp(proto, "file");
708  int ret = 0;
709 
710  if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) {
711  av_log(hls, AV_LOG_ERROR,
712  "second_level_segment_duration hls_flag works only with file protocol segment names\n");
713  ret = AVERROR(EINVAL);
714  }
715  if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) {
716  av_log(hls, AV_LOG_ERROR,
717  "second_level_segment_size hls_flag works only with file protocol segment names\n");
718  ret = AVERROR(EINVAL);
719  }
720 
721  return ret;
722 }
723 
724 static void sls_flag_file_rename(HLSContext *hls, char *old_filename) {
726  strlen(hls->current_segment_final_filename_fmt)) {
727  ff_rename(old_filename, hls->avf->filename, hls);
728  }
729 }
730 
732 {
734  char * filename = av_strdup(oc->filename); // %%d will be %d after strftime
735  if (!filename)
736  return AVERROR(ENOMEM);
737  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
738 #if FF_API_HLS_WRAP
739  filename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
740 #else
741  filename, 'd', c->sequence) < 1) {
742 #endif
743  av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
744  "you can try to remove second_level_segment_index flag\n",
745  filename);
746  av_free(filename);
747  return AVERROR(EINVAL);
748  }
749  av_free(filename);
750  }
755  char * filename = av_strdup(oc->filename); // %%s will be %s after strftime
756  if (!filename)
757  return AVERROR(ENOMEM);
758  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename), filename, 's', 0) < 1) {
759  av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
760  "you can try to remove second_level_segment_size flag\n",
761  filename);
762  av_free(filename);
763  return AVERROR(EINVAL);
764  }
765  av_free(filename);
766  }
768  char * filename = av_strdup(oc->filename); // %%t will be %t after strftime
769  if (!filename)
770  return AVERROR(ENOMEM);
771  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename), filename, 't', 0) < 1) {
772  av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
773  "you can try to remove second_level_segment_time flag\n",
774  filename);
775  av_free(filename);
776  return AVERROR(EINVAL);
777  }
778  av_free(filename);
779  }
780  }
781  return 0;
782 }
783 
784 /* Create a new segment and append it to the segment list */
785 static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls, double duration,
786  int64_t pos, int64_t size)
787 {
788  HLSSegment *en = av_malloc(sizeof(*en));
789  const char *filename;
790  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
791  int ret;
792 
793  if (!en)
794  return AVERROR(ENOMEM);
795 
796  ret = sls_flags_filename_process(s, hls, en, duration, pos, size);
797  if (ret < 0) {
798  return ret;
799  }
800 
801  filename = av_basename(hls->avf->filename);
802 
803  if (hls->use_localtime_mkdir) {
804  filename = hls->avf->filename;
805  }
806  if ((find_segment_by_filename(hls->segments, filename) || find_segment_by_filename(hls->old_segments, filename))
807  && !byterange_mode) {
808  av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename);
809  }
810  av_strlcpy(en->filename, filename, sizeof(en->filename));
811 
812  if(hls->has_subtitle)
814  else
815  en->sub_filename[0] = '\0';
816 
817  en->duration = duration;
818  en->pos = pos;
819  en->size = size;
820  en->next = NULL;
821  en->discont = 0;
822 
823  if (hls->discontinuity) {
824  en->discont = 1;
825  hls->discontinuity = 0;
826  }
827 
828  if (hls->key_info_file || hls->encrypt) {
829  av_strlcpy(en->key_uri, hls->key_uri, sizeof(en->key_uri));
830  av_strlcpy(en->iv_string, hls->iv_string, sizeof(en->iv_string));
831  }
832 
833  if (!hls->segments)
834  hls->segments = en;
835  else
836  hls->last_segment->next = en;
837 
838  hls->last_segment = en;
839 
840  // EVENT or VOD playlists imply sliding window cannot be used
841  if (hls->pl_type != PLAYLIST_TYPE_NONE)
842  hls->max_nb_segments = 0;
843 
844  if (hls->max_nb_segments && hls->nb_entries >= hls->max_nb_segments) {
845  en = hls->segments;
846  hls->initial_prog_date_time += en->duration;
847  hls->segments = en->next;
848  if (en && hls->flags & HLS_DELETE_SEGMENTS &&
849 #if FF_API_HLS_WRAP
850  !(hls->flags & HLS_SINGLE_FILE || hls->wrap)) {
851 #else
852  !(hls->flags & HLS_SINGLE_FILE)) {
853 #endif
854  en->next = hls->old_segments;
855  hls->old_segments = en;
856  if ((ret = hls_delete_old_segments(s, hls)) < 0)
857  return ret;
858  } else
859  av_free(en);
860  } else
861  hls->nb_entries++;
862 
863  if (hls->max_seg_size > 0) {
864  return 0;
865  }
866  hls->sequence++;
867 
868  return 0;
869 }
870 
871 static int parse_playlist(AVFormatContext *s, const char *url)
872 {
873  HLSContext *hls = s->priv_data;
874  AVIOContext *in;
875  int ret = 0, is_segment = 0;
876  int64_t new_start_pos;
877  char line[1024];
878  const char *ptr;
879  const char *end;
880 
881  if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ,
884  return ret;
885 
886  read_chomp_line(in, line, sizeof(line));
887  if (strcmp(line, "#EXTM3U")) {
888  ret = AVERROR_INVALIDDATA;
889  goto fail;
890  }
891 
892  hls->discontinuity = 0;
893  while (!avio_feof(in)) {
894  read_chomp_line(in, line, sizeof(line));
895  if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
896  int64_t tmp_sequence = strtoll(ptr, NULL, 10);
897  if (tmp_sequence < hls->sequence)
898  av_log(hls, AV_LOG_VERBOSE,
899  "Found playlist sequence number was smaller """
900  "than specified start sequence number: %"PRId64" < %"PRId64", "
901  "omitting\n", tmp_sequence, hls->start_sequence);
902  else {
903  av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence);
904  hls->sequence = tmp_sequence;
905  }
906  } else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) {
907  is_segment = 1;
908  hls->discontinuity = 1;
909  } else if (av_strstart(line, "#EXTINF:", &ptr)) {
910  is_segment = 1;
911  hls->duration = atof(ptr);
912  } else if (av_stristart(line, "#EXT-X-KEY:", &ptr)) {
913  ptr = av_stristr(line, "URI=\"");
914  if (ptr) {
915  ptr += strlen("URI=\"");
916  end = av_stristr(ptr, ",");
917  if (end) {
918  av_strlcpy(hls->key_uri, ptr, end - ptr);
919  } else {
920  av_strlcpy(hls->key_uri, ptr, sizeof(hls->key_uri));
921  }
922  }
923 
924  ptr = av_stristr(line, "IV=0x");
925  if (ptr) {
926  ptr += strlen("IV=0x");
927  end = av_stristr(ptr, ",");
928  if (end) {
929  av_strlcpy(hls->iv_string, ptr, end - ptr);
930  } else {
931  av_strlcpy(hls->iv_string, ptr, sizeof(hls->iv_string));
932  }
933  }
934 
935  } else if (av_strstart(line, "#", NULL)) {
936  continue;
937  } else if (line[0]) {
938  if (is_segment) {
939  is_segment = 0;
940  new_start_pos = avio_tell(hls->avf->pb);
941  hls->size = new_start_pos - hls->start_pos;
942  av_strlcpy(hls->avf->filename, line, sizeof(line));
943  ret = hls_append_segment(s, hls, hls->duration, hls->start_pos, hls->size);
944  if (ret < 0)
945  goto fail;
946  hls->start_pos = new_start_pos;
947  }
948  }
949  }
950 
951 fail:
952  avio_close(in);
953  return ret;
954 }
955 
957 {
958  HLSSegment *en;
959 
960  while(p) {
961  en = p;
962  p = p->next;
963  av_free(en);
964  }
965 }
966 
968 {
969  const char *proto = avio_find_protocol_name(s->filename);
970  int http_base_proto = proto ? (!av_strcasecmp(proto, "http") || !av_strcasecmp(proto, "https")) : 0;
971 
972  if (c->method) {
973  av_dict_set(options, "method", c->method, 0);
974  } else if (http_base_proto) {
975  av_log(c, AV_LOG_WARNING, "No HTTP method set, hls muxer defaulting to method PUT.\n");
976  av_dict_set(options, "method", "PUT", 0);
977  }
978  if (c->user_agent)
979  av_dict_set(options, "user_agent", c->user_agent, 0);
980 
981 }
982 
984  int target_duration, int64_t sequence)
985 {
986  avio_printf(out, "#EXTM3U\n");
987  avio_printf(out, "#EXT-X-VERSION:%d\n", version);
988  if (hls->allowcache == 0 || hls->allowcache == 1) {
989  avio_printf(out, "#EXT-X-ALLOW-CACHE:%s\n", hls->allowcache == 0 ? "NO" : "YES");
990  }
991  avio_printf(out, "#EXT-X-TARGETDURATION:%d\n", target_duration);
992  avio_printf(out, "#EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
993  av_log(hls, AV_LOG_VERBOSE, "EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
994 }
995 
997 {
998  size_t len = strlen(oc->filename);
999  char final_filename[sizeof(oc->filename)];
1000 
1001  av_strlcpy(final_filename, oc->filename, len);
1002  final_filename[len-4] = '\0';
1003  ff_rename(oc->filename, final_filename, s);
1004  oc->filename[len-4] = '\0';
1005 }
1006 
1007 static int hls_window(AVFormatContext *s, int last)
1008 {
1009  HLSContext *hls = s->priv_data;
1010  HLSSegment *en;
1011  int target_duration = 0;
1012  int ret = 0;
1013  AVIOContext *out = NULL;
1014  AVIOContext *sub_out = NULL;
1015  char temp_filename[1024];
1016  int64_t sequence = FFMAX(hls->start_sequence, hls->sequence - hls->nb_entries);
1017  int version = 3;
1018  const char *proto = avio_find_protocol_name(s->filename);
1019  int use_rename = proto && !strcmp(proto, "file");
1020  static unsigned warned_non_file;
1021  char *key_uri = NULL;
1022  char *iv_string = NULL;
1024  double prog_date_time = hls->initial_prog_date_time;
1025  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1026 
1027  if (byterange_mode) {
1028  version = 4;
1029  sequence = 0;
1030  }
1031 
1032  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1033  version = 7;
1034  }
1035 
1036  if (!use_rename && !warned_non_file++)
1037  av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
1038 
1039  set_http_options(s, &options, hls);
1040  snprintf(temp_filename, sizeof(temp_filename), use_rename ? "%s.tmp" : "%s", s->filename);
1041  if ((ret = s->io_open(s, &out, temp_filename, AVIO_FLAG_WRITE, &options)) < 0)
1042  goto fail;
1043 
1044  for (en = hls->segments; en; en = en->next) {
1045  if (target_duration <= en->duration)
1046  target_duration = get_int_from_double(en->duration);
1047  }
1048 
1049  hls->discontinuity_set = 0;
1050  write_m3u8_head_block(hls, out, version, target_duration, sequence);
1051  if (hls->pl_type == PLAYLIST_TYPE_EVENT) {
1052  avio_printf(out, "#EXT-X-PLAYLIST-TYPE:EVENT\n");
1053  } else if (hls->pl_type == PLAYLIST_TYPE_VOD) {
1054  avio_printf(out, "#EXT-X-PLAYLIST-TYPE:VOD\n");
1055  }
1056 
1057  if((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && hls->discontinuity_set==0 ){
1058  avio_printf(out, "#EXT-X-DISCONTINUITY\n");
1059  hls->discontinuity_set = 1;
1060  }
1061  for (en = hls->segments; en; en = en->next) {
1062  if ((hls->encrypt || hls->key_info_file) && (!key_uri || strcmp(en->key_uri, key_uri) ||
1063  av_strcasecmp(en->iv_string, iv_string))) {
1064  avio_printf(out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri);
1065  if (*en->iv_string)
1066  avio_printf(out, ",IV=0x%s", en->iv_string);
1067  avio_printf(out, "\n");
1068  key_uri = en->key_uri;
1069  iv_string = en->iv_string;
1070  }
1071 
1072  if (en->discont) {
1073  avio_printf(out, "#EXT-X-DISCONTINUITY\n");
1074  }
1075 
1076  if ((hls->segment_type == SEGMENT_TYPE_FMP4) && (en == hls->segments)) {
1077  avio_printf(out, "#EXT-X-MAP:URI=\"%s\"", hls->fmp4_init_filename);
1078  if (hls->flags & HLS_SINGLE_FILE) {
1079  avio_printf(out, ",BYTERANGE=\"%"PRId64"@%"PRId64"\"", en->size, en->pos);
1080  }
1081  avio_printf(out, "\n");
1082  } else {
1083  if (hls->flags & HLS_ROUND_DURATIONS)
1084  avio_printf(out, "#EXTINF:%ld,\n", lrint(en->duration));
1085  else
1086  avio_printf(out, "#EXTINF:%f,\n", en->duration);
1087  if (byterange_mode)
1088  avio_printf(out, "#EXT-X-BYTERANGE:%"PRId64"@%"PRId64"\n",
1089  en->size, en->pos);
1090  }
1091  if (hls->flags & HLS_PROGRAM_DATE_TIME) {
1092  time_t tt, wrongsecs;
1093  int milli;
1094  struct tm *tm, tmpbuf;
1095  char buf0[128], buf1[128];
1096  tt = (int64_t)prog_date_time;
1097  milli = av_clip(lrint(1000*(prog_date_time - tt)), 0, 999);
1098  tm = localtime_r(&tt, &tmpbuf);
1099  strftime(buf0, sizeof(buf0), "%Y-%m-%dT%H:%M:%S", tm);
1100  if (!strftime(buf1, sizeof(buf1), "%z", tm) || buf1[1]<'0' ||buf1[1]>'2') {
1101  int tz_min, dst = tm->tm_isdst;
1102  tm = gmtime_r(&tt, &tmpbuf);
1103  tm->tm_isdst = dst;
1104  wrongsecs = mktime(tm);
1105  tz_min = (abs(wrongsecs - tt) + 30) / 60;
1106  snprintf(buf1, sizeof(buf1),
1107  "%c%02d%02d",
1108  wrongsecs <= tt ? '+' : '-',
1109  tz_min / 60,
1110  tz_min % 60);
1111  }
1112  avio_printf(out, "#EXT-X-PROGRAM-DATE-TIME:%s.%03d%s\n", buf0, milli, buf1);
1113  prog_date_time += en->duration;
1114  }
1115  if (!((hls->segment_type == SEGMENT_TYPE_FMP4) && (en == hls->segments))) {
1116  if (hls->baseurl)
1117  avio_printf(out, "%s", hls->baseurl);
1118  avio_printf(out, "%s\n", en->filename);
1119  }
1120  }
1121 
1122  if (last && (hls->flags & HLS_OMIT_ENDLIST)==0)
1123  avio_printf(out, "#EXT-X-ENDLIST\n");
1124 
1125  if( hls->vtt_m3u8_name ) {
1126  if ((ret = s->io_open(s, &sub_out, hls->vtt_m3u8_name, AVIO_FLAG_WRITE, &options)) < 0)
1127  goto fail;
1128  write_m3u8_head_block(hls, sub_out, version, target_duration, sequence);
1129 
1130  for (en = hls->segments; en; en = en->next) {
1131  avio_printf(sub_out, "#EXTINF:%f,\n", en->duration);
1132  if (byterange_mode)
1133  avio_printf(sub_out, "#EXT-X-BYTERANGE:%"PRIi64"@%"PRIi64"\n",
1134  en->size, en->pos);
1135  if (hls->baseurl)
1136  avio_printf(sub_out, "%s", hls->baseurl);
1137  avio_printf(sub_out, "%s\n", en->sub_filename);
1138  }
1139 
1140  if (last)
1141  avio_printf(sub_out, "#EXT-X-ENDLIST\n");
1142 
1143  }
1144 
1145 fail:
1146  av_dict_free(&options);
1147  ff_format_io_close(s, &out);
1148  ff_format_io_close(s, &sub_out);
1149  if (ret >= 0 && use_rename)
1150  ff_rename(temp_filename, s->filename, s);
1151  return ret;
1152 }
1153 
1155 {
1156  HLSContext *c = s->priv_data;
1157  AVFormatContext *oc = c->avf;
1158  AVFormatContext *vtt_oc = c->vtt_avf;
1160  char *filename, iv_string[KEYSIZE*2 + 1];
1161  int err = 0;
1162 
1163  if (c->flags & HLS_SINGLE_FILE) {
1164  av_strlcpy(oc->filename, c->basename,
1165  sizeof(oc->filename));
1166  if (c->vtt_basename)
1167  av_strlcpy(vtt_oc->filename, c->vtt_basename,
1168  sizeof(vtt_oc->filename));
1169  } else if (c->max_seg_size > 0) {
1170  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
1171 #if FF_API_HLS_WRAP
1172  c->basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
1173 #else
1174  c->basename, 'd', c->sequence) < 1) {
1175 #endif
1176  av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -use_localtime 1 with it\n", c->basename);
1177  return AVERROR(EINVAL);
1178  }
1179  } else {
1180  if (c->use_localtime) {
1181  time_t now0;
1182  struct tm *tm, tmpbuf;
1183  time(&now0);
1184  tm = localtime_r(&now0, &tmpbuf);
1185  if (!strftime(oc->filename, sizeof(oc->filename), c->basename, tm)) {
1186  av_log(oc, AV_LOG_ERROR, "Could not get segment filename with use_localtime\n");
1187  return AVERROR(EINVAL);
1188  }
1189 
1190  err = sls_flag_use_localtime_filename(oc, c);
1191  if (err < 0) {
1192  return AVERROR(ENOMEM);
1193  }
1194 
1195  if (c->use_localtime_mkdir) {
1196  const char *dir;
1197  char *fn_copy = av_strdup(oc->filename);
1198  if (!fn_copy) {
1199  return AVERROR(ENOMEM);
1200  }
1201  dir = av_dirname(fn_copy);
1202  if (mkdir_p(dir) == -1 && errno != EEXIST) {
1203  av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir);
1204  av_free(fn_copy);
1205  return AVERROR(errno);
1206  }
1207  av_free(fn_copy);
1208  }
1209  } else if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
1210 #if FF_API_HLS_WRAP
1211  c->basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
1212 #else
1213  c->basename, 'd', c->sequence) < 1) {
1214 #endif
1215  av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -use_localtime 1 with it\n", c->basename);
1216  return AVERROR(EINVAL);
1217  }
1218  if( c->vtt_basename) {
1219  if (replace_int_data_in_filename(vtt_oc->filename, sizeof(vtt_oc->filename),
1220 #if FF_API_HLS_WRAP
1221  c->vtt_basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
1222 #else
1223  c->vtt_basename, 'd', c->sequence) < 1) {
1224 #endif
1225  av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", c->vtt_basename);
1226  return AVERROR(EINVAL);
1227  }
1228  }
1229  }
1230  c->number++;
1231 
1232  set_http_options(s, &options, c);
1233 
1234  if (c->flags & HLS_TEMP_FILE) {
1235  av_strlcat(oc->filename, ".tmp", sizeof(oc->filename));
1236  }
1237 
1238  if (c->key_info_file || c->encrypt) {
1239  if (c->key_info_file && c->encrypt) {
1240  av_log(s, AV_LOG_WARNING, "Cannot use both -hls_key_info_file and -hls_enc,"
1241  " will use -hls_key_info_file priority\n");
1242  }
1243 
1244  if (c->number <= 1 || (c->flags & HLS_PERIODIC_REKEY)) {
1245  if (c->key_info_file) {
1246  if ((err = hls_encryption_start(s)) < 0)
1247  goto fail;
1248  } else {
1249  if ((err = do_encrypt(s)) < 0)
1250  goto fail;
1251  }
1252  }
1253  if ((err = av_dict_set(&options, "encryption_key", c->key_string, 0))
1254  < 0)
1255  goto fail;
1256  err = av_strlcpy(iv_string, c->iv_string, sizeof(iv_string));
1257  if (!err)
1258  snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, c->sequence);
1259  if ((err = av_dict_set(&options, "encryption_iv", iv_string, 0)) < 0)
1260  goto fail;
1261 
1262  filename = av_asprintf("crypto:%s", oc->filename);
1263  if (!filename) {
1264  err = AVERROR(ENOMEM);
1265  goto fail;
1266  }
1267  err = s->io_open(s, &oc->pb, filename, AVIO_FLAG_WRITE, &options);
1268  av_free(filename);
1269  av_dict_free(&options);
1270  if (err < 0)
1271  return err;
1272  } else
1273  if ((err = s->io_open(s, &oc->pb, oc->filename, AVIO_FLAG_WRITE, &options)) < 0)
1274  goto fail;
1275  if (c->vtt_basename) {
1276  set_http_options(s, &options, c);
1277  if ((err = s->io_open(s, &vtt_oc->pb, vtt_oc->filename, AVIO_FLAG_WRITE, &options)) < 0)
1278  goto fail;
1279  }
1280  av_dict_free(&options);
1281 
1282  if (c->segment_type == SEGMENT_TYPE_FMP4 && !(c->flags & HLS_SINGLE_FILE)) {
1283  write_styp(oc->pb);
1284  } else {
1285  /* We only require one PAT/PMT per segment. */
1286  if (oc->oformat->priv_class && oc->priv_data) {
1287  char period[21];
1288 
1289  snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1);
1290 
1291  av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
1292  av_opt_set(oc->priv_data, "sdt_period", period, 0);
1293  av_opt_set(oc->priv_data, "pat_period", period, 0);
1294  }
1295  }
1296 
1297  if (c->vtt_basename) {
1298  err = avformat_write_header(vtt_oc,NULL);
1299  if (err < 0)
1300  return err;
1301  }
1302 
1303  return 0;
1304 fail:
1305  av_dict_free(&options);
1306 
1307  return err;
1308 }
1309 
1311 {
1312  char b[21];
1313  time_t t = time(NULL);
1314  struct tm *p, tmbuf;
1315  HLSContext *hls = s->priv_data;
1316 
1317  p = localtime_r(&t, &tmbuf);
1318  // no %s support when strftime returned error or left format string unchanged
1319  // also no %s support on MSVC, which invokes the invalid parameter handler on unsupported format strings, instead of returning an error
1320  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1321  return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.m4s" : "-%s.m4s";
1322  }
1323  return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts";
1324 }
1325 
1327 {
1328  HLSContext *hls = s->priv_data;
1329  int ret, i;
1330  char *p;
1331  const char *pattern = "%d.ts";
1332  const char *pattern_localtime_fmt = get_default_pattern_localtime_fmt(s);
1333  const char *vtt_pattern = "%d.vtt";
1334  AVDictionary *options = NULL;
1335  int basename_size;
1336  int vtt_basename_size;
1337 
1338  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1339  pattern = "%d.m4s";
1340  }
1343  time_t t = time(NULL); // we will need it in either case
1345  hls->start_sequence = (int64_t)t;
1347  char b[15];
1348  struct tm *p, tmbuf;
1349  if (!(p = localtime_r(&t, &tmbuf)))
1350  return AVERROR(ENOMEM);
1351  if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p))
1352  return AVERROR(ENOMEM);
1353  hls->start_sequence = strtoll(b, NULL, 10);
1354  }
1355  av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
1356  }
1357 
1358  hls->sequence = hls->start_sequence;
1359  hls->recording_time = (hls->init_time ? hls->init_time : hls->time) * AV_TIME_BASE;
1360  hls->start_pts = AV_NOPTS_VALUE;
1361  hls->current_segment_final_filename_fmt[0] = '\0';
1362 
1363  if (hls->flags & HLS_PROGRAM_DATE_TIME) {
1364  time_t now0;
1365  time(&now0);
1366  hls->initial_prog_date_time = now0;
1367  }
1368 
1369  if (hls->format_options_str) {
1370  ret = av_dict_parse_string(&hls->format_options, hls->format_options_str, "=", ":", 0);
1371  if (ret < 0) {
1372  av_log(s, AV_LOG_ERROR, "Could not parse format options list '%s'\n", hls->format_options_str);
1373  goto fail;
1374  }
1375  }
1376 
1377  for (i = 0; i < s->nb_streams; i++) {
1378  hls->has_video +=
1380  hls->has_subtitle +=
1382  }
1383 
1384  if (hls->has_video > 1)
1386  "More than a single video stream present, "
1387  "expect issues decoding it.\n");
1388 
1389  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1390  hls->oformat = av_guess_format("mp4", NULL, NULL);
1391  } else {
1392  hls->oformat = av_guess_format("mpegts", NULL, NULL);
1393  }
1394 
1395  if (!hls->oformat) {
1397  goto fail;
1398  }
1399 
1400  if(hls->has_subtitle) {
1401  hls->vtt_oformat = av_guess_format("webvtt", NULL, NULL);
1402  if (!hls->oformat) {
1404  goto fail;
1405  }
1406  }
1407 
1408  if (hls->segment_filename) {
1409  hls->basename = av_strdup(hls->segment_filename);
1410  if (!hls->basename) {
1411  ret = AVERROR(ENOMEM);
1412  goto fail;
1413  }
1414  } else {
1415  if (hls->flags & HLS_SINGLE_FILE) {
1416  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1417  pattern = ".m4s";
1418  } else {
1419  pattern = ".ts";
1420  }
1421  }
1422 
1423  if (hls->use_localtime) {
1424  basename_size = strlen(s->filename) + strlen(pattern_localtime_fmt) + 1;
1425  } else {
1426  basename_size = strlen(s->filename) + strlen(pattern) + 1;
1427  }
1428  hls->basename = av_malloc(basename_size);
1429  if (!hls->basename) {
1430  ret = AVERROR(ENOMEM);
1431  goto fail;
1432  }
1433 
1434  av_strlcpy(hls->basename, s->filename, basename_size);
1435 
1436  p = strrchr(hls->basename, '.');
1437  if (p)
1438  *p = '\0';
1439  if (hls->use_localtime) {
1440  av_strlcat(hls->basename, pattern_localtime_fmt, basename_size);
1441  } else {
1442  av_strlcat(hls->basename, pattern, basename_size);
1443  }
1444  }
1445 
1446  if (av_strcasecmp(hls->fmp4_init_filename, "init.mp4")) {
1447  int fmp4_init_filename_len = strlen(hls->fmp4_init_filename) + 1;
1448  hls->base_output_dirname = av_malloc(fmp4_init_filename_len);
1449  if (!hls->base_output_dirname) {
1450  ret = AVERROR(ENOMEM);
1451  goto fail;
1452  }
1453  av_strlcpy(hls->base_output_dirname, hls->fmp4_init_filename, fmp4_init_filename_len);
1454  } else {
1455  hls->base_output_dirname = av_malloc(basename_size);
1456  if (!hls->base_output_dirname) {
1457  ret = AVERROR(ENOMEM);
1458  goto fail;
1459  }
1460 
1461  av_strlcpy(hls->base_output_dirname, s->filename, basename_size);
1462  p = strrchr(hls->base_output_dirname, '/');
1463  if (p) {
1464  *(p + 1) = '\0';
1465  av_strlcat(hls->base_output_dirname, hls->fmp4_init_filename, basename_size);
1466  } else {
1467  av_strlcpy(hls->base_output_dirname, hls->fmp4_init_filename, basename_size);
1468  }
1469  }
1470 
1471  if (!hls->use_localtime) {
1473  if (ret < 0) {
1474  goto fail;
1475  }
1476  } else {
1477  ret = sls_flag_check_duration_size(hls);
1478  if (ret < 0) {
1479  goto fail;
1480  }
1481  }
1482  if(hls->has_subtitle) {
1483 
1484  if (hls->flags & HLS_SINGLE_FILE)
1485  vtt_pattern = ".vtt";
1486  vtt_basename_size = strlen(s->filename) + strlen(vtt_pattern) + 1;
1487  hls->vtt_basename = av_malloc(vtt_basename_size);
1488  if (!hls->vtt_basename) {
1489  ret = AVERROR(ENOMEM);
1490  goto fail;
1491  }
1492  hls->vtt_m3u8_name = av_malloc(vtt_basename_size);
1493  if (!hls->vtt_m3u8_name ) {
1494  ret = AVERROR(ENOMEM);
1495  goto fail;
1496  }
1497  av_strlcpy(hls->vtt_basename, s->filename, vtt_basename_size);
1498  p = strrchr(hls->vtt_basename, '.');
1499  if (p)
1500  *p = '\0';
1501 
1502  if( hls->subtitle_filename ) {
1503  strcpy(hls->vtt_m3u8_name, hls->subtitle_filename);
1504  } else {
1505  strcpy(hls->vtt_m3u8_name, hls->vtt_basename);
1506  av_strlcat(hls->vtt_m3u8_name, "_vtt.m3u8", vtt_basename_size);
1507  }
1508  av_strlcat(hls->vtt_basename, vtt_pattern, vtt_basename_size);
1509  }
1510 
1511  if ((hls->flags & HLS_SINGLE_FILE) && (hls->segment_type == SEGMENT_TYPE_FMP4)) {
1512  hls->fmp4_init_filename = av_strdup(hls->basename);
1513  if (!hls->fmp4_init_filename) {
1514  ret = AVERROR(ENOMEM);
1515  goto fail;
1516  }
1517  }
1518 
1519  if ((ret = hls_mux_init(s)) < 0)
1520  goto fail;
1521 
1522  if (hls->flags & HLS_APPEND_LIST) {
1523  parse_playlist(s, s->filename);
1524  hls->discontinuity = 1;
1525  if (hls->init_time > 0) {
1526  av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
1527  " hls_init_time value will have no effect\n");
1528  hls->init_time = 0;
1529  hls->recording_time = hls->time * AV_TIME_BASE;
1530  }
1531  }
1532 
1533  if (hls->segment_type != SEGMENT_TYPE_FMP4 || hls->flags & HLS_SINGLE_FILE) {
1534  if ((ret = hls_start(s)) < 0)
1535  goto fail;
1536  }
1537 
1538  av_dict_copy(&options, hls->format_options, 0);
1539  ret = avformat_write_header(hls->avf, &options);
1540  if (av_dict_count(options)) {
1541  av_log(s, AV_LOG_ERROR, "Some of provided format options in '%s' are not recognized\n", hls->format_options_str);
1542  ret = AVERROR(EINVAL);
1543  goto fail;
1544  }
1545  //av_assert0(s->nb_streams == hls->avf->nb_streams);
1546  for (i = 0; i < s->nb_streams; i++) {
1547  AVStream *inner_st;
1548  AVStream *outer_st = s->streams[i];
1549 
1550  if (hls->max_seg_size > 0) {
1551  if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
1552  (outer_st->codecpar->bit_rate > hls->max_seg_size)) {
1553  av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, "
1554  "(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.",
1555  outer_st->codecpar->bit_rate, hls->max_seg_size);
1556  }
1557  }
1558 
1559  if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
1560  inner_st = hls->avf->streams[i];
1561  else if (hls->vtt_avf)
1562  inner_st = hls->vtt_avf->streams[0];
1563  else {
1564  /* We have a subtitle stream, when the user does not want one */
1565  inner_st = NULL;
1566  continue;
1567  }
1568  avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
1569  }
1570 fail:
1571 
1572  av_dict_free(&options);
1573  if (ret < 0) {
1575  av_freep(&hls->basename);
1576  av_freep(&hls->vtt_basename);
1577  av_freep(&hls->key_basename);
1578  if (hls->avf)
1579  avformat_free_context(hls->avf);
1580  if (hls->vtt_avf)
1582 
1583  }
1584  return ret;
1585 }
1586 
1588 {
1589  HLSContext *hls = s->priv_data;
1590  AVFormatContext *oc = NULL;
1591  AVStream *st = s->streams[pkt->stream_index];
1592  int64_t end_pts = hls->recording_time * hls->number;
1593  int is_ref_pkt = 1;
1594  int ret = 0, can_split = 1;
1595  int stream_index = 0;
1596 
1597  if (hls->sequence - hls->nb_entries > hls->start_sequence && hls->init_time > 0) {
1598  /* reset end_pts, hls->recording_time at end of the init hls list */
1599  int init_list_dur = hls->init_time * hls->nb_entries * AV_TIME_BASE;
1600  int after_init_list_dur = (hls->sequence - hls->nb_entries ) * hls->time * AV_TIME_BASE;
1601  hls->recording_time = hls->time * AV_TIME_BASE;
1602  end_pts = init_list_dur + after_init_list_dur ;
1603  }
1604 
1605  if( st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE ) {
1606  oc = hls->vtt_avf;
1607  stream_index = 0;
1608  } else {
1609  oc = hls->avf;
1610  stream_index = pkt->stream_index;
1611  }
1612  if (hls->start_pts == AV_NOPTS_VALUE) {
1613  hls->start_pts = pkt->pts;
1614  hls->end_pts = pkt->pts;
1615  }
1616 
1617  if (hls->has_video) {
1618  can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
1619  ((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME));
1620  is_ref_pkt = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO;
1621  }
1622  if (pkt->pts == AV_NOPTS_VALUE)
1623  is_ref_pkt = can_split = 0;
1624 
1625  if (is_ref_pkt) {
1626  if (hls->new_start) {
1627  hls->new_start = 0;
1628  hls->duration = (double)(pkt->pts - hls->end_pts)
1629  * st->time_base.num / st->time_base.den;
1630  hls->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den;
1631  } else {
1632  if (pkt->duration) {
1633  hls->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den;
1634  } else {
1635  av_log(s, AV_LOG_WARNING, "pkt->duration = 0, maybe the hls segment duration will not precise\n");
1636  hls->duration = (double)(pkt->pts - hls->end_pts) * st->time_base.num / st->time_base.den;
1637  }
1638  }
1639 
1640  }
1641  if (hls->fmp4_init_mode || can_split && av_compare_ts(pkt->pts - hls->start_pts, st->time_base,
1642  end_pts, AV_TIME_BASE_Q) >= 0) {
1643  int64_t new_start_pos;
1644  char *old_filename = av_strdup(hls->avf->filename);
1645  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1646 
1647  if (!old_filename) {
1648  return AVERROR(ENOMEM);
1649  }
1650 
1651  av_write_frame(hls->avf, NULL); /* Flush any buffered data */
1652 
1653  new_start_pos = avio_tell(hls->avf->pb);
1654  hls->size = new_start_pos - hls->start_pos;
1655 
1656  if (!byterange_mode) {
1657  ff_format_io_close(s, &oc->pb);
1658  if (hls->vtt_avf) {
1659  ff_format_io_close(s, &hls->vtt_avf->pb);
1660  }
1661  }
1662  if ((hls->flags & HLS_TEMP_FILE) && oc->filename[0]) {
1663  if (!(hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size <= 0))
1664  if ((hls->avf->oformat->priv_class && hls->avf->priv_data) && hls->segment_type != SEGMENT_TYPE_FMP4)
1665  av_opt_set(hls->avf->priv_data, "mpegts_flags", "resend_headers", 0);
1666  hls_rename_temp_file(s, oc);
1667  }
1668 
1669  if (hls->fmp4_init_mode) {
1670  hls->number--;
1671  }
1672 
1673  if (!hls->fmp4_init_mode || byterange_mode)
1674  ret = hls_append_segment(s, hls, hls->duration, hls->start_pos, hls->size);
1675 
1676  hls->start_pos = new_start_pos;
1677  if (ret < 0) {
1678  av_free(old_filename);
1679  return ret;
1680  }
1681 
1682  hls->end_pts = pkt->pts;
1683  hls->duration = 0;
1684 
1685  hls->fmp4_init_mode = 0;
1686  if (hls->flags & HLS_SINGLE_FILE) {
1687  hls->number++;
1688  } else if (hls->max_seg_size > 0) {
1689  if (hls->start_pos >= hls->max_seg_size) {
1690  hls->sequence++;
1691  sls_flag_file_rename(hls, old_filename);
1692  ret = hls_start(s);
1693  hls->start_pos = 0;
1694  /* When split segment by byte, the duration is short than hls_time,
1695  * so it is not enough one segment duration as hls_time, */
1696  hls->number--;
1697  }
1698  hls->number++;
1699  } else {
1700  sls_flag_file_rename(hls, old_filename);
1701  ret = hls_start(s);
1702  }
1703  av_free(old_filename);
1704 
1705  if (ret < 0) {
1706  return ret;
1707  }
1708 
1709  if (!hls->fmp4_init_mode || byterange_mode)
1710  if ((ret = hls_window(s, 0)) < 0) {
1711  return ret;
1712  }
1713  }
1714 
1715  ret = ff_write_chained(oc, stream_index, pkt, s, 0);
1716 
1717  return ret;
1718 }
1719 
1720 static int hls_write_trailer(struct AVFormatContext *s)
1721 {
1722  HLSContext *hls = s->priv_data;
1723  AVFormatContext *oc = hls->avf;
1724  AVFormatContext *vtt_oc = hls->vtt_avf;
1725  char *old_filename = av_strdup(hls->avf->filename);
1726 
1727  if (!old_filename) {
1728  return AVERROR(ENOMEM);
1729  }
1730 
1731 
1732  av_write_trailer(oc);
1733  if (oc->pb) {
1734  hls->size = avio_tell(hls->avf->pb) - hls->start_pos;
1735  ff_format_io_close(s, &oc->pb);
1736 
1737  if ((hls->flags & HLS_TEMP_FILE) && oc->filename[0]) {
1738  hls_rename_temp_file(s, oc);
1739  }
1740 
1741  /* after av_write_trailer, then duration + 1 duration per packet */
1742  hls_append_segment(s, hls, hls->duration + hls->dpp, hls->start_pos, hls->size);
1743  }
1744 
1745  sls_flag_file_rename(hls, old_filename);
1746 
1747  if (vtt_oc) {
1748  if (vtt_oc->pb)
1749  av_write_trailer(vtt_oc);
1750  hls->size = avio_tell(hls->vtt_avf->pb) - hls->start_pos;
1751  ff_format_io_close(s, &vtt_oc->pb);
1752  }
1753  av_freep(&hls->basename);
1755  av_freep(&hls->key_basename);
1757 
1758  hls->avf = NULL;
1759  hls_window(s, 1);
1760 
1762  if (vtt_oc) {
1763  av_freep(&hls->vtt_basename);
1764  av_freep(&hls->vtt_m3u8_name);
1765  avformat_free_context(vtt_oc);
1766  }
1767 
1770  av_free(old_filename);
1771  return 0;
1772 }
1773 
1774 #define OFFSET(x) offsetof(HLSContext, x)
1775 #define E AV_OPT_FLAG_ENCODING_PARAM
1776 static const AVOption options[] = {
1777  {"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
1778  {"hls_time", "set segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
1779  {"hls_init_time", "set segment length in seconds at init list", OFFSET(init_time), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0, FLT_MAX, E},
1780  {"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
1781  {"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},
1782  {"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},
1783 #if FF_API_HLS_WRAP
1784  {"hls_wrap", "set number after which the index wraps (will be deprecated)", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
1785 #endif
1786  {"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},
1787  {"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1788  {"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1789  {"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
1790  {"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},
1791  {"hls_enc", "enable AES128 encryption support", OFFSET(encrypt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E},
1792  {"hls_enc_key", "hex-coded 16 byte key to encrypt the segments", OFFSET(key), AV_OPT_TYPE_STRING, .flags = E},
1793  {"hls_enc_key_url", "url to access the key to decrypt the segments", OFFSET(key_url), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1794  {"hls_enc_iv", "hex-coded 16 byte initialization vector", OFFSET(iv), AV_OPT_TYPE_STRING, .flags = E},
1795  {"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1796  {"hls_segment_type", "set hls segment files type", OFFSET(segment_type), AV_OPT_TYPE_INT, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, SEGMENT_TYPE_FMP4, E, "segment_type"},
1797  {"mpegts", "make segment file to mpegts files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, UINT_MAX, E, "segment_type"},
1798  {"fmp4", "make segment file to fragment mp4 files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_FMP4 }, 0, UINT_MAX, E, "segment_type"},
1799  {"hls_fmp4_init_filename", "set fragment mp4 file init filename", OFFSET(fmp4_init_filename), AV_OPT_TYPE_STRING, {.str = "init.mp4"}, 0, 0, E},
1800  {"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
1801  {"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"},
1802  {"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"},
1803  {"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"},
1804  {"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, "flags"},
1805  {"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, "flags"},
1806  {"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, "flags"},
1807  {"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"},
1808  {"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"},
1809  {"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
1810  {"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"},
1811  {"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"},
1812  {"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"},
1813  {"periodic_rekey", "reload keyinfo file periodically for re-keying", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PERIODIC_REKEY }, 0, UINT_MAX, E, "flags"},
1814  {"use_localtime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
1815  {"use_localtime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
1816  {"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" },
1817  {"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, "pl_type" },
1818  {"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, "pl_type" },
1819  {"method", "set the HTTP method(default: PUT)", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1820  {"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" },
1821  {"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" },
1822  {"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" },
1823  {"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" },
1824  {"http_user_agent", "override User-Agent field in HTTP header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1825  { NULL },
1826 };
1827 
1828 static const AVClass hls_class = {
1829  .class_name = "hls muxer",
1830  .item_name = av_default_item_name,
1831  .option = options,
1832  .version = LIBAVUTIL_VERSION_INT,
1833 };
1834 
1835 
1837  .name = "hls",
1838  .long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
1839  .extensions = "m3u8",
1840  .priv_data_size = sizeof(HLSContext),
1841  .audio_codec = AV_CODEC_ID_AAC,
1842  .video_codec = AV_CODEC_ID_H264,
1843  .subtitle_codec = AV_CODEC_ID_WEBVTT,
1848  .priv_class = &hls_class,
1849 };
float time
Definition: hlsenc.c:115
static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int unqueue)
Definition: ffmpeg.c:671
static void write_m3u8_head_block(HLSContext *hls, AVIOContext *out, int version, int target_duration, int64_t sequence)
Definition: hlsenc.c:983
#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:168
const char * s
Definition: avisynth_c.h:768
Bytestream IO Context.
Definition: avio.h:161
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
static av_const int av_isdigit(int c)
Locale-independent conversion of ASCII isdigit.
Definition: avstring.h:206
char * basename
Definition: hlsenc.c:150
PlaylistType
Definition: hlsenc.c:96
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:1720
int av_write_frame(AVFormatContext *s, AVPacket *pkt)
Write a packet to an output media file.
Definition: mux.c:927
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
#define LIBAVUTIL_VERSION_INT
Definition: version.h:86
else temp
Definition: vf_mcdeint.c:256
void avpriv_set_pts_info(AVStream *s, int pts_wrap_bits, unsigned int pts_num, unsigned int pts_den)
Set the time base and wrapping info for a given stream.
Definition: utils.c:4739
double duration
Definition: hlsenc.c:63
char * av_stristr(const char *s1, const char *s2)
Locate the first case-independent occurrence in the string haystack of the string needle...
Definition: avstring.c:56
static int replace_int_data_in_filename(char *buf, int buf_size, const char *filename, char placeholder, int64_t number)
Definition: hlsenc.c:218
int ff_write_chained(AVFormatContext *dst, int dst_stream, AVPacket *pkt, AVFormatContext *src, int interleave)
Write a packet to another muxer than the one the user originally intended.
Definition: mux.c:1372
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: avcodec.h:4143
char * vtt_format_options_str
Definition: hlsenc.c:156
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown)
Definition: avformat.h:959
char * key_basename
Definition: hlsenc.c:164
int64_t size
Definition: hlsenc.c:66
int num
Numerator.
Definition: rational.h:59
int use_localtime_mkdir
flag to mkdir dirname in timebased filename
Definition: hlsenc.c:129
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:185
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
Definition: aviobuf.c:244
#define AVIO_FLAG_READ
read-only
Definition: avio.h:660
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:661
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags)
Copy entries from one AVDictionary struct into another.
Definition: dict.c:217
static int do_encrypt(AVFormatContext *s)
Definition: hlsenc.c:401
int version
Definition: avisynth_c.h:766
int fmp4_init_mode
Definition: hlsenc.c:126
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:222
static AVPacket pkt
#define AVFMT_ALLOW_FLUSH
Format allows flushing.
Definition: avformat.h:495
static int hls_window(AVFormatContext *s, int last)
Definition: hlsenc.c:1007
Format I/O context.
Definition: avformat.h:1349
int max_nb_segments
Definition: hlsenc.c:117
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
#define AV_WB64(p, v)
Definition: intreadwrite.h:438
int av_stristart(const char *str, const char *pfx, const char **ptr)
Return non-zero if pfx is a prefix of str independent of case.
Definition: avstring.c:45
char * iv
Definition: hlsenc.c:163
const char * av_basename(const char *path)
Thread safe basename.
Definition: avstring.c:257
int new_start
Definition: hlsenc.c:134
uint8_t
static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls, double duration, int64_t pos, int64_t size)
Definition: hlsenc.c:785
#define av_malloc(s)
float init_time
Definition: hlsenc.c:116
AVOptions.
enum AVCodecID av_codec_get_id(const struct AVCodecTag *const *tags, unsigned int tag)
Get the AVCodecID for the given codec tag tag.
miscellaneous OS support macros and functions.
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: avcodec.h:1690
static void hls_free_segments(HLSSegment *p)
Definition: hlsenc.c:956
HLSSegment * old_segments
Definition: hlsenc.c:148
int64_t end_pts
Definition: hlsenc.c:137
void ff_format_io_close(AVFormatContext *s, AVIOContext **pb)
Definition: utils.c:5451
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
Definition: utils.c:4369
AVStream ** streams
A list of all streams in the file.
Definition: avformat.h:1417
int64_t duration
Definition: movenc.c:63
int discont
Definition: hlsenc.c:64
char * protocol_whitelist
',' separated list of allowed protocols.
Definition: avformat.h:1887
static int flags
Definition: log.c:57
#define AVERROR_EOF
End of file.
Definition: error.h:55
char * format_options_str
Definition: hlsenc.c:155
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
#define LINE_BUFFER_SIZE
Definition: hlsenc.c:57
ptrdiff_t size
Definition: opengl_enc.c:101
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
Definition: avio.h:556
char * key
Definition: hlsenc.c:161
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
Definition: aviobuf.c:216
static av_always_inline void ffio_wfourcc(AVIOContext *pb, const uint8_t *s)
Definition: avio_internal.h:58
static int sls_flags_filename_process(struct AVFormatContext *s, HLSContext *hls, HLSSegment *en, double duration, int64_t pos, int64_t size)
Definition: hlsenc.c:635
#define av_log(a,...)
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
Definition: aviobuf.c:637
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:4172
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1704
char * base_output_dirname
Definition: hlsenc.c:151
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:1776
double initial_prog_date_time
Definition: hlsenc.c:175
static int hls_write_header(AVFormatContext *s)
Definition: hlsenc.c:1326
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:2279
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
AVDictionary * metadata
Metadata that applies to the whole file.
Definition: avformat.h:1567
#define OFFSET(x)
Definition: hlsenc.c:1774
av_default_item_name
#define AVERROR(e)
Definition: error.h:43
struct HLSSegment * next
Definition: hlsenc.c:71
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
int avio_close(AVIOContext *s)
Close the resource accessed by the AVIOContext s and free it.
Definition: aviobuf.c:1112
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
char sub_filename[1024]
Definition: hlsenc.c:62
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:203
enum AVMediaType codec_type
General type of the encoded data.
Definition: avcodec.h:4139
AVDictionary * vtt_format_options
Definition: hlsenc.c:171
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:132
double duration
Definition: hlsenc.c:138
static av_always_inline av_const double round(double x)
Definition: libm.h:444
#define FF_API_HLS_WRAP
Definition: version.h:89
char key_uri[LINE_BUFFER_SIZE+1]
Definition: hlsenc.c:68
int64_t recording_time
Definition: hlsenc.c:131
#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:109
static void write_styp(AVIOContext *pb)
Definition: hlsenc.c:270
int64_t pos
Definition: hlsenc.c:65
char * vtt_basename
Definition: hlsenc.c:152
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:1678
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:180
char * baseurl
Definition: hlsenc.c:154
static void set_http_options(AVFormatContext *s, AVDictionary **options, HLSContext *c)
Definition: hlsenc.c:967
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:143
StartSequenceSourceType
Definition: hlsenc.c:50
static int sls_flag_check_duration_size_index(HLSContext *hls)
Definition: hlsenc.c:681
unsigned number
Definition: hlsenc.c:105
char key_string[KEYSIZE *2+1]
Definition: hlsenc.c:169
#define HLS_MICROSECOND_UNIT
Definition: hlsenc.c:58
static int randomize(uint8_t *buf, int len)
Definition: hlsenc.c:387
int64_t max_seg_size
Definition: hlsenc.c:141
char filename[1024]
input or output filename
Definition: avformat.h:1425
#define AV_TIME_BASE
Internal time base represented as integer.
Definition: avutil.h:254
av_warn_unused_result int avformat_write_header(AVFormatContext *s, AVDictionary **options)
Allocate the stream private data and write the stream header to an output media file.
Definition: mux.c:528
int av_strcasecmp(const char *a, const char *b)
Locale-independent case-insensitive compare.
Definition: avstring.c:213
static struct tm * localtime_r(const time_t *clock, struct tm *result)
Definition: time_internal.h:37
int64_t start_pts
Definition: hlsenc.c:136
static int write_trailer(AVFormatContext *s1)
Definition: v4l2enc.c:94
#define AVFMT_GLOBALHEADER
Format wants global header.
Definition: avformat.h:485
static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition: hlsenc.c:1587
const char * name
Definition: avformat.h:524
HLSSegment * last_segment
Definition: hlsenc.c:147
int discontinuity
Definition: hlsenc.c:144
#define E
Definition: hlsenc.c:1775
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:146
AVDictionary * format_options
Definition: hlsenc.c:158
int ff_get_line(AVIOContext *s, char *buf, int maxlen)
Read a whole line of text from AVIOContext.
Definition: aviobuf.c:798
const AVClass * priv_class
AVClass for the private context.
Definition: avformat.h:552
av_warn_unused_result int avformat_init_output(AVFormatContext *s, AVDictionary **options)
Allocate the stream private data and initialize the codec, but do not write the header.
Definition: mux.c:500
static int read_chomp_line(AVIOContext *s, char *buf, int maxlen)
Definition: hlsenc.c:522
static void sls_flag_file_rename(HLSContext *hls, char *old_filename)
Definition: hlsenc.c:724
int use_localtime
flag to expand filename with localtime
Definition: hlsenc.c:128
Stream structure.
Definition: avformat.h:889
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
int av_dict_parse_string(AVDictionary **pm, const char *str, const char *key_val_sep, const char *pairs_sep, int flags)
Parse the key/value pairs list and add the parsed entries to a dictionary.
Definition: dict.c:180
char * key_url
Definition: hlsenc.c:162
char iv_string[KEYSIZE *2+1]
Definition: hlsenc.c:69
int64_t start_sequence
Definition: hlsenc.c:107
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:731
int has_subtitle
Definition: hlsenc.c:133
#define AV_TIME_BASE_Q
Internal time base represented as fractional value.
Definition: avutil.h:260
char * user_agent
holds HTTP user agent set as an AVOption to the HTTP protocol context
Definition: hls.c:201
AVIOContext * pb
I/O context.
Definition: avformat.h:1391
static int hls_encryption_start(AVFormatContext *s)
Definition: hlsenc.c:470
const struct AVCodecTag *const * codec_tag
List of supported codec_id-codec_tag pairs, ordered by "better choice first".
Definition: avformat.h:549
char * key_info_file
Definition: hlsenc.c:166
AVOutputFormat * oformat
Definition: hlsenc.c:109
double dpp
Definition: hlsenc.c:135
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:173
char * fmp4_init_filename
Definition: hlsenc.c:124
void * buf
Definition: avisynth_c.h:690
int allowcache
Definition: hlsenc.c:130
int segment_type
Definition: hlsenc.c:125
HLSFlags
Definition: hlsenc.c:74
static int ff_rename(const char *oldpath, const char *newpath, void *logctx)
Wrap errno on rename() error.
Definition: internal.h:543
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
Describe the class of an AVClass context structure.
Definition: log.h:67
static void hls_rename_temp_file(AVFormatContext *s, AVFormatContext *oc)
Definition: hlsenc.c:996
int encrypt
Definition: hlsenc.c:160
char iv_string[KEYSIZE *2+1]
Definition: hlsenc.c:170
#define snprintf
Definition: snprintf.h:34
void avformat_free_context(AVFormatContext *s)
Free an AVFormatContext and all its streams.
Definition: utils.c:4304
int64_t sequence
Definition: hlsenc.c:106
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:1081
misc parsing utilities
size_t av_strlcat(char *dst, const char *src, size_t size)
Append the string src to the string dst, but to a total length of no more than size - 1 bytes...
Definition: avstring.c:93
const char * avio_find_protocol_name(const char *url)
Return the name of the protocol that will handle the passed URL.
Definition: avio.c:471
char key_file[LINE_BUFFER_SIZE+1]
Definition: hlsenc.c:167
static int hls_mux_init(AVFormatContext *s)
Definition: hlsenc.c:530
static HLSSegment * find_segment_by_filename(HLSSegment *segment, const char *filename)
Definition: hlsenc.c:625
int64_t size
Definition: hlsenc.c:140
static const char * get_default_pattern_localtime_fmt(AVFormatContext *s)
Definition: hlsenc.c:1310
char current_segment_final_filename_fmt[1024]
Definition: hlsenc.c:176
SegmentType
Definition: hlsenc.c:91
uint32_t pl_type
Definition: hlsenc.c:122
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:142
Main libavformat public API header.
int
#define AVFMT_NOFILE
Demuxer will use avio_open, no opened file should be provided by the caller.
Definition: avformat.h:478
static double c[64]
const char * av_dirname(char *path)
Thread safe dirname.
Definition: avstring.c:274
uint32_t flags
Definition: hlsenc.c:121
static int hls_delete_old_segments(AVFormatContext *s, HLSContext *hls)
Definition: hlsenc.c:280
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:871
#define KEYSIZE
Definition: hlsenc.c:56
int64_t start_pos
Definition: hlsenc.c:139
char * segment_filename
Definition: hlsenc.c:123
#define av_free(p)
int len
char * vtt_m3u8_name
Definition: hlsenc.c:153
uint32_t start_sequence_source_type
Definition: hlsenc.c:108
char filename[1024]
Definition: hlsenc.c:61
static int hls_start(AVFormatContext *s)
Definition: hlsenc.c:1154
void * priv_data
Format private data.
Definition: avformat.h:1377
char * subtitle_filename
Definition: hlsenc.c:157
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:112
AVOutputFormat ff_hls_muxer
Definition: hlsenc.c:1836
int av_write_trailer(AVFormatContext *s)
Write the stream trailer to an output media file and free the file private data.
Definition: mux.c:1301
void avio_wb32(AVIOContext *s, unsigned int val)
Definition: aviobuf.c:382
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:356
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: avcodec.h:4147
AVOutputFormat * vtt_oformat
Definition: hlsenc.c:110
static int sls_flag_check_duration_size(HLSContext *hls)
Definition: hlsenc.c:704
int stream_index
Definition: avcodec.h:1674
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:1828
unsigned int av_codec_get_tag(const struct AVCodecTag *const *tags, enum AVCodecID id)
Get the codec tag for the given codec id id.
int(* io_open)(struct AVFormatContext *s, AVIOContext **pb, const char *url, int flags, AVDictionary **options)
Definition: avformat.h:1909
char * ff_data_to_hex(char *buf, const uint8_t *src, int size, int lowercase)
Definition: utils.c:4690
This structure stores compressed data.
Definition: avcodec.h:1649
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:449
void(* io_close)(struct AVFormatContext *s, AVIOContext *pb)
A callback for closing the streams opened with AVFormatContext.io_open().
Definition: avformat.h:1915
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1665
#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:113