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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
114 
117 
118  float time; // Set by a private option.
119  float init_time; // Set by a private option.
120  int max_nb_segments; // Set by a private option.
121 #if FF_API_HLS_WRAP
122  int wrap; // Set by a private option.
123 #endif
124  uint32_t flags; // enum HLSFlags
125  uint32_t pl_type; // enum PlaylistType
130 
131  int use_localtime; ///< flag to expand filename with localtime
132  int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
134  int64_t recording_time;
138  double dpp; // duration per packet
139  int64_t start_pts;
140  int64_t end_pts;
141  double duration; // last segment duration computed so far, in seconds
142  int64_t start_pos; // last segment starting position
143  int64_t size; // last segment size
144  int64_t max_seg_size; // every segment file max size
148 
152 
153  char *basename;
157  char *baseurl;
162 
163  int encrypt;
164  char *key;
165  char *key_url;
166  char *iv;
168 
172  char key_string[KEYSIZE*2 + 1];
173  char iv_string[KEYSIZE*2 + 1];
175 
176  char *method;
177 
179  char current_segment_final_filename_fmt[1024]; // when renaming segments
180  char *user_agent;
181 } HLSContext;
182 
183 static int get_int_from_double(double val)
184 {
185  return (int)((val - (int)val) >= 0.001) ? (int)(val + 1) : (int)val;
186 }
187 
188 static int mkdir_p(const char *path) {
189  int ret = 0;
190  char *temp = av_strdup(path);
191  char *pos = temp;
192  char tmp_ch = '\0';
193 
194  if (!path || !temp) {
195  return -1;
196  }
197 
198  if (!strncmp(temp, "/", 1) || !strncmp(temp, "\\", 1)) {
199  pos++;
200  } else if (!strncmp(temp, "./", 2) || !strncmp(temp, ".\\", 2)) {
201  pos += 2;
202  }
203 
204  for ( ; *pos != '\0'; ++pos) {
205  if (*pos == '/' || *pos == '\\') {
206  tmp_ch = *pos;
207  *pos = '\0';
208  ret = mkdir(temp, 0755);
209  *pos = tmp_ch;
210  }
211  }
212 
213  if ((*(pos - 1) != '/') || (*(pos - 1) != '\\')) {
214  ret = mkdir(temp, 0755);
215  }
216 
217  av_free(temp);
218  return ret;
219 }
220 
222 {
223  const char *proto = avio_find_protocol_name(s->filename);
224  int http_base_proto = proto ? (!av_strcasecmp(proto, "http") || !av_strcasecmp(proto, "https")) : 0;
225 
226  if (c->method) {
227  av_dict_set(options, "method", c->method, 0);
228  } else if (http_base_proto) {
229  av_log(c, AV_LOG_WARNING, "No HTTP method set, hls muxer defaulting to method PUT.\n");
230  av_dict_set(options, "method", "PUT", 0);
231  }
232  if (c->user_agent)
233  av_dict_set(options, "user_agent", c->user_agent, 0);
234 
235 }
236 
237 static int replace_int_data_in_filename(char *buf, int buf_size, const char *filename, char placeholder, int64_t number)
238 {
239  const char *p;
240  char *q, buf1[20], c;
241  int nd, len, addchar_count;
242  int found_count = 0;
243 
244  q = buf;
245  p = filename;
246  for (;;) {
247  c = *p;
248  if (c == '\0')
249  break;
250  if (c == '%' && *(p+1) == '%') // %%
251  addchar_count = 2;
252  else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) {
253  nd = 0;
254  addchar_count = 1;
255  while (av_isdigit(*(p + addchar_count))) {
256  nd = nd * 10 + *(p + addchar_count) - '0';
257  addchar_count++;
258  }
259 
260  if (*(p + addchar_count) == placeholder) {
261  len = snprintf(buf1, sizeof(buf1), "%0*"PRId64, (number < 0) ? nd : nd++, number);
262  if (len < 1) // returned error or empty buf1
263  goto fail;
264  if ((q - buf + len) > buf_size - 1)
265  goto fail;
266  memcpy(q, buf1, len);
267  q += len;
268  p += (addchar_count + 1);
269  addchar_count = 0;
270  found_count++;
271  }
272 
273  } else
274  addchar_count = 1;
275 
276  while (addchar_count--)
277  if ((q - buf) < buf_size - 1)
278  *q++ = *p++;
279  else
280  goto fail;
281  }
282  *q = '\0';
283  return found_count;
284 fail:
285  *q = '\0';
286  return -1;
287 }
288 
289 static void write_styp(AVIOContext *pb)
290 {
291  avio_wb32(pb, 24);
292  ffio_wfourcc(pb, "styp");
293  ffio_wfourcc(pb, "msdh");
294  avio_wb32(pb, 0); /* minor */
295  ffio_wfourcc(pb, "msdh");
296  ffio_wfourcc(pb, "msix");
297 }
298 
300 
301  HLSSegment *segment, *previous_segment = NULL;
302  float playlist_duration = 0.0f;
303  int ret = 0, path_size, sub_path_size;
304  char *dirname = NULL, *p, *sub_path;
305  char *path = NULL;
307  AVIOContext *out = NULL;
308  const char *proto = NULL;
309 
310  segment = hls->segments;
311  while (segment) {
312  playlist_duration += segment->duration;
313  segment = segment->next;
314  }
315 
316  segment = hls->old_segments;
317  while (segment) {
318  playlist_duration -= segment->duration;
319  previous_segment = segment;
320  segment = previous_segment->next;
321  if (playlist_duration <= -previous_segment->duration) {
322  previous_segment->next = NULL;
323  break;
324  }
325  }
326 
327  if (segment && !hls->use_localtime_mkdir) {
328  if (hls->segment_filename) {
329  dirname = av_strdup(hls->segment_filename);
330  } else {
331  dirname = av_strdup(hls->avf->filename);
332  }
333  if (!dirname) {
334  ret = AVERROR(ENOMEM);
335  goto fail;
336  }
337  p = (char *)av_basename(dirname);
338  *p = '\0';
339  }
340 
341  while (segment) {
342  av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n",
343  segment->filename);
344  path_size = (hls->use_localtime_mkdir ? 0 : strlen(dirname)) + strlen(segment->filename) + 1;
345  path = av_malloc(path_size);
346  if (!path) {
347  ret = AVERROR(ENOMEM);
348  goto fail;
349  }
350 
351  if (hls->use_localtime_mkdir)
352  av_strlcpy(path, segment->filename, path_size);
353  else { // segment->filename contains basename only
354  av_strlcpy(path, dirname, path_size);
355  av_strlcat(path, segment->filename, path_size);
356  }
357 
358  proto = avio_find_protocol_name(s->filename);
359  if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
360  av_dict_set(&options, "method", "DELETE", 0);
361  if ((ret = hls->avf->io_open(hls->avf, &out, path, AVIO_FLAG_WRITE, &options)) < 0)
362  goto fail;
363  ff_format_io_close(hls->avf, &out);
364  } else if (unlink(path) < 0) {
365  av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
366  path, strerror(errno));
367  }
368 
369  if ((segment->sub_filename[0] != '\0')) {
370  sub_path_size = strlen(segment->sub_filename) + 1 + (dirname ? strlen(dirname) : 0);
371  sub_path = av_malloc(sub_path_size);
372  if (!sub_path) {
373  ret = AVERROR(ENOMEM);
374  goto fail;
375  }
376 
377  av_strlcpy(sub_path, dirname, sub_path_size);
378  av_strlcat(sub_path, segment->sub_filename, sub_path_size);
379 
380  if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
381  av_dict_set(&options, "method", "DELETE", 0);
382  if ((ret = hls->avf->io_open(hls->avf, &out, sub_path, AVIO_FLAG_WRITE, &options)) < 0) {
383  av_free(sub_path);
384  goto fail;
385  }
386  ff_format_io_close(hls->avf, &out);
387  } else if (unlink(sub_path) < 0) {
388  av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
389  sub_path, strerror(errno));
390  }
391  av_free(sub_path);
392  }
393  av_freep(&path);
394  previous_segment = segment;
395  segment = previous_segment->next;
396  av_free(previous_segment);
397  }
398 
399 fail:
400  av_free(path);
401  av_free(dirname);
402 
403  return ret;
404 }
405 
406 static int randomize(uint8_t *buf, int len)
407 {
408 #if CONFIG_GCRYPT
409  gcry_randomize(buf, len, GCRY_VERY_STRONG_RANDOM);
410  return 0;
411 #elif CONFIG_OPENSSL
412  if (RAND_bytes(buf, len))
413  return 0;
414 #else
415  return AVERROR(ENOSYS);
416 #endif
417  return AVERROR(EINVAL);
418 }
419 
421 {
422  HLSContext *hls = s->priv_data;
423  int ret;
424  int len;
425  AVIOContext *pb;
426  uint8_t key[KEYSIZE];
427 
428  len = strlen(hls->basename) + 4 + 1;
429  hls->key_basename = av_mallocz(len);
430  if (!hls->key_basename)
431  return AVERROR(ENOMEM);
432 
433  av_strlcpy(hls->key_basename, s->filename, len);
434  av_strlcat(hls->key_basename, ".key", len);
435 
436  if (hls->key_url) {
437  av_strlcpy(hls->key_file, hls->key_url, sizeof(hls->key_file));
438  av_strlcpy(hls->key_uri, hls->key_url, sizeof(hls->key_uri));
439  } else {
440  av_strlcpy(hls->key_file, hls->key_basename, sizeof(hls->key_file));
441  av_strlcpy(hls->key_uri, hls->key_basename, sizeof(hls->key_uri));
442  }
443 
444  if (!*hls->iv_string) {
445  uint8_t iv[16] = { 0 };
446  char buf[33];
447 
448  if (!hls->iv) {
449  AV_WB64(iv + 8, hls->sequence);
450  } else {
451  memcpy(iv, hls->iv, sizeof(iv));
452  }
453  ff_data_to_hex(buf, iv, sizeof(iv), 0);
454  buf[32] = '\0';
455  memcpy(hls->iv_string, buf, sizeof(hls->iv_string));
456  }
457 
458  if (!*hls->key_uri) {
459  av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
460  return AVERROR(EINVAL);
461  }
462 
463  if (!*hls->key_file) {
464  av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
465  return AVERROR(EINVAL);
466  }
467 
468  if (!*hls->key_string) {
469  if (!hls->key) {
470  if ((ret = randomize(key, sizeof(key))) < 0) {
471  av_log(s, AV_LOG_ERROR, "Cannot generate a strong random key\n");
472  return ret;
473  }
474  } else {
475  memcpy(key, hls->key, sizeof(key));
476  }
477 
478  ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
479  if ((ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_WRITE, NULL)) < 0)
480  return ret;
481  avio_seek(pb, 0, SEEK_CUR);
482  avio_write(pb, key, KEYSIZE);
483  avio_close(pb);
484  }
485  return 0;
486 }
487 
488 
490 {
491  HLSContext *hls = s->priv_data;
492  int ret;
493  AVIOContext *pb;
494  uint8_t key[KEYSIZE];
495 
496  if ((ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, NULL)) < 0) {
497  av_log(hls, AV_LOG_ERROR,
498  "error opening key info file %s\n", hls->key_info_file);
499  return ret;
500  }
501 
502  ff_get_line(pb, hls->key_uri, sizeof(hls->key_uri));
503  hls->key_uri[strcspn(hls->key_uri, "\r\n")] = '\0';
504 
505  ff_get_line(pb, hls->key_file, sizeof(hls->key_file));
506  hls->key_file[strcspn(hls->key_file, "\r\n")] = '\0';
507 
508  ff_get_line(pb, hls->iv_string, sizeof(hls->iv_string));
509  hls->iv_string[strcspn(hls->iv_string, "\r\n")] = '\0';
510 
511  ff_format_io_close(s, &pb);
512 
513  if (!*hls->key_uri) {
514  av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
515  return AVERROR(EINVAL);
516  }
517 
518  if (!*hls->key_file) {
519  av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
520  return AVERROR(EINVAL);
521  }
522 
523  if ((ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_READ, NULL)) < 0) {
524  av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", hls->key_file);
525  return ret;
526  }
527 
528  ret = avio_read(pb, key, sizeof(key));
529  ff_format_io_close(s, &pb);
530  if (ret != sizeof(key)) {
531  av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", hls->key_file);
532  if (ret >= 0 || ret == AVERROR_EOF)
533  ret = AVERROR(EINVAL);
534  return ret;
535  }
536  ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
537 
538  return 0;
539 }
540 
541 static int read_chomp_line(AVIOContext *s, char *buf, int maxlen)
542 {
543  int len = ff_get_line(s, buf, maxlen);
544  while (len > 0 && av_isspace(buf[len - 1]))
545  buf[--len] = '\0';
546  return len;
547 }
548 
550 {
552  HLSContext *hls = s->priv_data;
553  AVFormatContext *oc;
554  AVFormatContext *vtt_oc = NULL;
555  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
556  int i, ret;
557 
558  ret = avformat_alloc_output_context2(&hls->avf, hls->oformat, NULL, NULL);
559  if (ret < 0)
560  return ret;
561  oc = hls->avf;
562 
563  oc->filename[0] = '\0';
564  oc->oformat = hls->oformat;
566  oc->max_delay = s->max_delay;
567  oc->opaque = s->opaque;
568  oc->io_open = s->io_open;
569  oc->io_close = s->io_close;
570  av_dict_copy(&oc->metadata, s->metadata, 0);
571 
572  if(hls->vtt_oformat) {
574  if (ret < 0)
575  return ret;
576  vtt_oc = hls->vtt_avf;
577  vtt_oc->oformat = hls->vtt_oformat;
578  av_dict_copy(&vtt_oc->metadata, s->metadata, 0);
579  }
580 
581  for (i = 0; i < s->nb_streams; i++) {
582  AVStream *st;
583  AVFormatContext *loc;
585  loc = vtt_oc;
586  else
587  loc = oc;
588 
589  if (!(st = avformat_new_stream(loc, NULL)))
590  return AVERROR(ENOMEM);
592  if (!oc->oformat->codec_tag ||
596  } else {
597  st->codecpar->codec_tag = 0;
598  }
599 
601  st->time_base = s->streams[i]->time_base;
602  av_dict_copy(&st->metadata, s->streams[i]->metadata, 0);
603  }
604  hls->packets_written = 1;
605  hls->start_pos = 0;
606  hls->new_start = 1;
607  hls->fmp4_init_mode = 0;
608 
609  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
610  if (hls->max_seg_size > 0) {
611  av_log(s, AV_LOG_WARNING, "Multi-file byterange mode is currently unsupported in the HLS muxer.\n");
612  return AVERROR_PATCHWELCOME;
613  }
614  hls->packets_written = 0;
615  hls->init_range_length = 0;
616  hls->fmp4_init_mode = !byterange_mode;
617  set_http_options(s, &options, hls);
618  if ((ret = avio_open_dyn_buf(&oc->pb)) < 0)
619  return ret;
620 
621  if ((ret = s->io_open(s, &hls->out, hls->base_output_dirname, AVIO_FLAG_WRITE, &options)) < 0) {
622  av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", hls->fmp4_init_filename);
623  return ret;
624  }
625 
626  if (hls->format_options_str) {
627  ret = av_dict_parse_string(&hls->format_options, hls->format_options_str, "=", ":", 0);
628  if (ret < 0) {
629  av_log(s, AV_LOG_ERROR, "Could not parse format options list '%s'\n",
630  hls->format_options_str);
631  return ret;
632  }
633  }
634 
635  av_dict_copy(&options, hls->format_options, 0);
636  av_dict_set(&options, "fflags", "-autobsf", 0);
637  av_dict_set(&options, "movflags", "frag_custom+dash+delay_moov", 0);
638  ret = avformat_init_output(oc, &options);
639  if (ret < 0)
640  return ret;
641  if (av_dict_count(options)) {
642  av_log(s, AV_LOG_ERROR, "Some of the provided format options in '%s' are not recognized\n", hls->format_options_str);
643  av_dict_free(&options);
644  return AVERROR(EINVAL);
645  }
646  avio_flush(oc->pb);
647  av_dict_free(&options);
648  }
649  return 0;
650 }
651 
652 static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename)
653 {
654  while (segment) {
655  if (!av_strcasecmp(segment->filename,filename))
656  return segment;
657  segment = segment->next;
658  }
659  return (HLSSegment *) NULL;
660 }
661 
663  int64_t pos, int64_t size)
664 {
666  strlen(hls->current_segment_final_filename_fmt)) {
669  char * filename = av_strdup(hls->avf->filename); // %%s will be %s after strftime
670  if (!filename) {
671  av_free(en);
672  return AVERROR(ENOMEM);
673  }
674  if (replace_int_data_in_filename(hls->avf->filename, sizeof(hls->avf->filename),
675  filename, 's', pos + size) < 1) {
676  av_log(hls, AV_LOG_ERROR,
677  "Invalid second level segment filename template '%s', "
678  "you can try to remove second_level_segment_size flag\n",
679  filename);
680  av_free(filename);
681  av_free(en);
682  return AVERROR(EINVAL);
683  }
684  av_free(filename);
685  }
687  char * filename = av_strdup(hls->avf->filename); // %%t will be %t after strftime
688  if (!filename) {
689  av_free(en);
690  return AVERROR(ENOMEM);
691  }
692  if (replace_int_data_in_filename(hls->avf->filename, sizeof(hls->avf->filename),
693  filename, 't', (int64_t)round(duration * HLS_MICROSECOND_UNIT)) < 1) {
694  av_log(hls, AV_LOG_ERROR,
695  "Invalid second level segment filename template '%s', "
696  "you can try to remove second_level_segment_time flag\n",
697  filename);
698  av_free(filename);
699  av_free(en);
700  return AVERROR(EINVAL);
701  }
702  av_free(filename);
703  }
704  }
705  return 0;
706 }
707 
709 {
710  int ret = 0;
711 
713  av_log(hls, AV_LOG_ERROR,
714  "second_level_segment_duration hls_flag requires use_localtime to be true\n");
715  ret = AVERROR(EINVAL);
716  }
718  av_log(hls, AV_LOG_ERROR,
719  "second_level_segment_size hls_flag requires use_localtime to be true\n");
720  ret = AVERROR(EINVAL);
721  }
723  av_log(hls, AV_LOG_ERROR,
724  "second_level_segment_index hls_flag requires use_localtime to be true\n");
725  ret = AVERROR(EINVAL);
726  }
727 
728  return ret;
729 }
730 
732 {
733  const char *proto = avio_find_protocol_name(hls->basename);
734  int segment_renaming_ok = proto && !strcmp(proto, "file");
735  int ret = 0;
736 
737  if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) {
738  av_log(hls, AV_LOG_ERROR,
739  "second_level_segment_duration hls_flag works only with file protocol segment names\n");
740  ret = AVERROR(EINVAL);
741  }
742  if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) {
743  av_log(hls, AV_LOG_ERROR,
744  "second_level_segment_size hls_flag works only with file protocol segment names\n");
745  ret = AVERROR(EINVAL);
746  }
747 
748  return ret;
749 }
750 
751 static void sls_flag_file_rename(HLSContext *hls, char *old_filename) {
753  strlen(hls->current_segment_final_filename_fmt)) {
754  ff_rename(old_filename, hls->avf->filename, hls);
755  }
756 }
757 
759 {
761  char * filename = av_strdup(oc->filename); // %%d will be %d after strftime
762  if (!filename)
763  return AVERROR(ENOMEM);
764  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
765 #if FF_API_HLS_WRAP
766  filename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
767 #else
768  filename, 'd', c->sequence) < 1) {
769 #endif
770  av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
771  "you can try to remove second_level_segment_index flag\n",
772  filename);
773  av_free(filename);
774  return AVERROR(EINVAL);
775  }
776  av_free(filename);
777  }
782  char * filename = av_strdup(oc->filename); // %%s will be %s after strftime
783  if (!filename)
784  return AVERROR(ENOMEM);
785  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename), filename, 's', 0) < 1) {
786  av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
787  "you can try to remove second_level_segment_size flag\n",
788  filename);
789  av_free(filename);
790  return AVERROR(EINVAL);
791  }
792  av_free(filename);
793  }
795  char * filename = av_strdup(oc->filename); // %%t will be %t after strftime
796  if (!filename)
797  return AVERROR(ENOMEM);
798  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename), filename, 't', 0) < 1) {
799  av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
800  "you can try to remove second_level_segment_time flag\n",
801  filename);
802  av_free(filename);
803  return AVERROR(EINVAL);
804  }
805  av_free(filename);
806  }
807  }
808  return 0;
809 }
810 
811 /* Create a new segment and append it to the segment list */
812 static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls, double duration,
813  int64_t pos, int64_t size)
814 {
815  HLSSegment *en = av_malloc(sizeof(*en));
816  const char *filename;
817  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
818  int ret;
819 
820  if (!en)
821  return AVERROR(ENOMEM);
822 
823  ret = sls_flags_filename_process(s, hls, en, duration, pos, size);
824  if (ret < 0) {
825  return ret;
826  }
827 
828  filename = av_basename(hls->avf->filename);
829 
830  if (hls->use_localtime_mkdir) {
831  filename = hls->avf->filename;
832  }
833  if ((find_segment_by_filename(hls->segments, filename) || find_segment_by_filename(hls->old_segments, filename))
834  && !byterange_mode) {
835  av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename);
836  }
837  av_strlcpy(en->filename, filename, sizeof(en->filename));
838 
839  if(hls->has_subtitle)
841  else
842  en->sub_filename[0] = '\0';
843 
844  en->duration = duration;
845  en->pos = pos;
846  en->size = size;
847  en->next = NULL;
848  en->discont = 0;
849 
850  if (hls->discontinuity) {
851  en->discont = 1;
852  hls->discontinuity = 0;
853  }
854 
855  if (hls->key_info_file || hls->encrypt) {
856  av_strlcpy(en->key_uri, hls->key_uri, sizeof(en->key_uri));
857  av_strlcpy(en->iv_string, hls->iv_string, sizeof(en->iv_string));
858  }
859 
860  if (!hls->segments)
861  hls->segments = en;
862  else
863  hls->last_segment->next = en;
864 
865  hls->last_segment = en;
866 
867  // EVENT or VOD playlists imply sliding window cannot be used
868  if (hls->pl_type != PLAYLIST_TYPE_NONE)
869  hls->max_nb_segments = 0;
870 
871  if (hls->max_nb_segments && hls->nb_entries >= hls->max_nb_segments) {
872  en = hls->segments;
873  hls->initial_prog_date_time += en->duration;
874  hls->segments = en->next;
875  if (en && hls->flags & HLS_DELETE_SEGMENTS &&
876 #if FF_API_HLS_WRAP
877  !(hls->flags & HLS_SINGLE_FILE || hls->wrap)) {
878 #else
879  !(hls->flags & HLS_SINGLE_FILE)) {
880 #endif
881  en->next = hls->old_segments;
882  hls->old_segments = en;
883  if ((ret = hls_delete_old_segments(s, hls)) < 0)
884  return ret;
885  } else
886  av_free(en);
887  } else
888  hls->nb_entries++;
889 
890  if (hls->max_seg_size > 0) {
891  return 0;
892  }
893  hls->sequence++;
894 
895  return 0;
896 }
897 
898 static int parse_playlist(AVFormatContext *s, const char *url)
899 {
900  HLSContext *hls = s->priv_data;
901  AVIOContext *in;
902  int ret = 0, is_segment = 0;
903  int64_t new_start_pos;
904  char line[1024];
905  const char *ptr;
906  const char *end;
907 
908  if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ,
911  return ret;
912 
913  read_chomp_line(in, line, sizeof(line));
914  if (strcmp(line, "#EXTM3U")) {
915  ret = AVERROR_INVALIDDATA;
916  goto fail;
917  }
918 
919  hls->discontinuity = 0;
920  while (!avio_feof(in)) {
921  read_chomp_line(in, line, sizeof(line));
922  if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
923  int64_t tmp_sequence = strtoll(ptr, NULL, 10);
924  if (tmp_sequence < hls->sequence)
925  av_log(hls, AV_LOG_VERBOSE,
926  "Found playlist sequence number was smaller """
927  "than specified start sequence number: %"PRId64" < %"PRId64", "
928  "omitting\n", tmp_sequence, hls->start_sequence);
929  else {
930  av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence);
931  hls->sequence = tmp_sequence;
932  }
933  } else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) {
934  is_segment = 1;
935  hls->discontinuity = 1;
936  } else if (av_strstart(line, "#EXTINF:", &ptr)) {
937  is_segment = 1;
938  hls->duration = atof(ptr);
939  } else if (av_stristart(line, "#EXT-X-KEY:", &ptr)) {
940  ptr = av_stristr(line, "URI=\"");
941  if (ptr) {
942  ptr += strlen("URI=\"");
943  end = av_stristr(ptr, ",");
944  if (end) {
945  av_strlcpy(hls->key_uri, ptr, end - ptr);
946  } else {
947  av_strlcpy(hls->key_uri, ptr, sizeof(hls->key_uri));
948  }
949  }
950 
951  ptr = av_stristr(line, "IV=0x");
952  if (ptr) {
953  ptr += strlen("IV=0x");
954  end = av_stristr(ptr, ",");
955  if (end) {
956  av_strlcpy(hls->iv_string, ptr, end - ptr);
957  } else {
958  av_strlcpy(hls->iv_string, ptr, sizeof(hls->iv_string));
959  }
960  }
961 
962  } else if (av_strstart(line, "#", NULL)) {
963  continue;
964  } else if (line[0]) {
965  if (is_segment) {
966  is_segment = 0;
967  new_start_pos = avio_tell(hls->avf->pb);
968  hls->size = new_start_pos - hls->start_pos;
969  av_strlcpy(hls->avf->filename, line, sizeof(line));
970  ret = hls_append_segment(s, hls, hls->duration, hls->start_pos, hls->size);
971  if (ret < 0)
972  goto fail;
973  hls->start_pos = new_start_pos;
974  }
975  }
976  }
977 
978 fail:
979  avio_close(in);
980  return ret;
981 }
982 
984 {
985  HLSSegment *en;
986 
987  while(p) {
988  en = p;
989  p = p->next;
990  av_free(en);
991  }
992 }
993 
995  int target_duration, int64_t sequence)
996 {
997  avio_printf(out, "#EXTM3U\n");
998  avio_printf(out, "#EXT-X-VERSION:%d\n", version);
999  if (hls->allowcache == 0 || hls->allowcache == 1) {
1000  avio_printf(out, "#EXT-X-ALLOW-CACHE:%s\n", hls->allowcache == 0 ? "NO" : "YES");
1001  }
1002  avio_printf(out, "#EXT-X-TARGETDURATION:%d\n", target_duration);
1003  avio_printf(out, "#EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
1004  av_log(hls, AV_LOG_VERBOSE, "EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
1005 }
1006 
1008 {
1009  size_t len = strlen(oc->filename);
1010  char final_filename[sizeof(oc->filename)];
1011 
1012  av_strlcpy(final_filename, oc->filename, len);
1013  final_filename[len-4] = '\0';
1014  ff_rename(oc->filename, final_filename, s);
1015  oc->filename[len-4] = '\0';
1016 }
1017 
1018 static int hls_window(AVFormatContext *s, int last)
1019 {
1020  HLSContext *hls = s->priv_data;
1021  HLSSegment *en;
1022  int target_duration = 0;
1023  int ret = 0;
1024  AVIOContext *out = NULL;
1025  AVIOContext *sub_out = NULL;
1026  char temp_filename[1024];
1027  int64_t sequence = FFMAX(hls->start_sequence, hls->sequence - hls->nb_entries);
1028  int version = 3;
1029  const char *proto = avio_find_protocol_name(s->filename);
1030  int use_rename = proto && !strcmp(proto, "file");
1031  static unsigned warned_non_file;
1032  char *key_uri = NULL;
1033  char *iv_string = NULL;
1035  double prog_date_time = hls->initial_prog_date_time;
1036  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1037 
1038  if (byterange_mode) {
1039  version = 4;
1040  sequence = 0;
1041  }
1042 
1043  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1044  version = 7;
1045  }
1046 
1047  if (!use_rename && !warned_non_file++)
1048  av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
1049 
1050  set_http_options(s, &options, hls);
1051  snprintf(temp_filename, sizeof(temp_filename), use_rename ? "%s.tmp" : "%s", s->filename);
1052  if ((ret = s->io_open(s, &out, temp_filename, AVIO_FLAG_WRITE, &options)) < 0)
1053  goto fail;
1054 
1055  for (en = hls->segments; en; en = en->next) {
1056  if (target_duration <= en->duration)
1057  target_duration = get_int_from_double(en->duration);
1058  }
1059 
1060  hls->discontinuity_set = 0;
1061  write_m3u8_head_block(hls, out, version, target_duration, sequence);
1062  if (hls->pl_type == PLAYLIST_TYPE_EVENT) {
1063  avio_printf(out, "#EXT-X-PLAYLIST-TYPE:EVENT\n");
1064  } else if (hls->pl_type == PLAYLIST_TYPE_VOD) {
1065  avio_printf(out, "#EXT-X-PLAYLIST-TYPE:VOD\n");
1066  }
1067 
1068  if((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && hls->discontinuity_set==0 ){
1069  avio_printf(out, "#EXT-X-DISCONTINUITY\n");
1070  hls->discontinuity_set = 1;
1071  }
1072  for (en = hls->segments; en; en = en->next) {
1073  if ((hls->encrypt || hls->key_info_file) && (!key_uri || strcmp(en->key_uri, key_uri) ||
1074  av_strcasecmp(en->iv_string, iv_string))) {
1075  avio_printf(out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri);
1076  if (*en->iv_string)
1077  avio_printf(out, ",IV=0x%s", en->iv_string);
1078  avio_printf(out, "\n");
1079  key_uri = en->key_uri;
1080  iv_string = en->iv_string;
1081  }
1082 
1083  if (en->discont) {
1084  avio_printf(out, "#EXT-X-DISCONTINUITY\n");
1085  }
1086 
1087  if ((hls->segment_type == SEGMENT_TYPE_FMP4) && (en == hls->segments)) {
1088  avio_printf(out, "#EXT-X-MAP:URI=\"%s\"", hls->fmp4_init_filename);
1089  if (hls->flags & HLS_SINGLE_FILE) {
1090  avio_printf(out, ",BYTERANGE=\"%"PRId64"@%"PRId64"\"", en->size, en->pos);
1091  }
1092  avio_printf(out, "\n");
1093  }
1094  if (hls->flags & HLS_ROUND_DURATIONS)
1095  avio_printf(out, "#EXTINF:%ld,\n", lrint(en->duration));
1096  else
1097  avio_printf(out, "#EXTINF:%f,\n", en->duration);
1098  if (byterange_mode)
1099  avio_printf(out, "#EXT-X-BYTERANGE:%"PRId64"@%"PRId64"\n",
1100  en->size, en->pos);
1101 
1102  if (hls->flags & HLS_PROGRAM_DATE_TIME) {
1103  time_t tt, wrongsecs;
1104  int milli;
1105  struct tm *tm, tmpbuf;
1106  char buf0[128], buf1[128];
1107  tt = (int64_t)prog_date_time;
1108  milli = av_clip(lrint(1000*(prog_date_time - tt)), 0, 999);
1109  tm = localtime_r(&tt, &tmpbuf);
1110  strftime(buf0, sizeof(buf0), "%Y-%m-%dT%H:%M:%S", tm);
1111  if (!strftime(buf1, sizeof(buf1), "%z", tm) || buf1[1]<'0' ||buf1[1]>'2') {
1112  int tz_min, dst = tm->tm_isdst;
1113  tm = gmtime_r(&tt, &tmpbuf);
1114  tm->tm_isdst = dst;
1115  wrongsecs = mktime(tm);
1116  tz_min = (abs(wrongsecs - tt) + 30) / 60;
1117  snprintf(buf1, sizeof(buf1),
1118  "%c%02d%02d",
1119  wrongsecs <= tt ? '+' : '-',
1120  tz_min / 60,
1121  tz_min % 60);
1122  }
1123  avio_printf(out, "#EXT-X-PROGRAM-DATE-TIME:%s.%03d%s\n", buf0, milli, buf1);
1124  prog_date_time += en->duration;
1125  }
1126  if (hls->baseurl)
1127  avio_printf(out, "%s", hls->baseurl);
1128  avio_printf(out, "%s\n", en->filename);
1129  }
1130 
1131  if (last && (hls->flags & HLS_OMIT_ENDLIST)==0)
1132  avio_printf(out, "#EXT-X-ENDLIST\n");
1133 
1134  if( hls->vtt_m3u8_name ) {
1135  if ((ret = s->io_open(s, &sub_out, hls->vtt_m3u8_name, AVIO_FLAG_WRITE, &options)) < 0)
1136  goto fail;
1137  write_m3u8_head_block(hls, sub_out, version, target_duration, sequence);
1138 
1139  for (en = hls->segments; en; en = en->next) {
1140  avio_printf(sub_out, "#EXTINF:%f,\n", en->duration);
1141  if (byterange_mode)
1142  avio_printf(sub_out, "#EXT-X-BYTERANGE:%"PRIi64"@%"PRIi64"\n",
1143  en->size, en->pos);
1144  if (hls->baseurl)
1145  avio_printf(sub_out, "%s", hls->baseurl);
1146  avio_printf(sub_out, "%s\n", en->sub_filename);
1147  }
1148 
1149  if (last)
1150  avio_printf(sub_out, "#EXT-X-ENDLIST\n");
1151 
1152  }
1153 
1154 fail:
1155  av_dict_free(&options);
1156  ff_format_io_close(s, &out);
1157  ff_format_io_close(s, &sub_out);
1158  if (ret >= 0 && use_rename)
1159  ff_rename(temp_filename, s->filename, s);
1160  return ret;
1161 }
1162 
1164 {
1165  HLSContext *c = s->priv_data;
1166  AVFormatContext *oc = c->avf;
1167  AVFormatContext *vtt_oc = c->vtt_avf;
1169  char *filename, iv_string[KEYSIZE*2 + 1];
1170  int err = 0;
1171 
1172  if (c->flags & HLS_SINGLE_FILE) {
1173  av_strlcpy(oc->filename, c->basename,
1174  sizeof(oc->filename));
1175  if (c->vtt_basename)
1176  av_strlcpy(vtt_oc->filename, c->vtt_basename,
1177  sizeof(vtt_oc->filename));
1178  } else if (c->max_seg_size > 0) {
1179  if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
1180 #if FF_API_HLS_WRAP
1181  c->basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
1182 #else
1183  c->basename, 'd', c->sequence) < 1) {
1184 #endif
1185  av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -use_localtime 1 with it\n", c->basename);
1186  return AVERROR(EINVAL);
1187  }
1188  } else {
1189  if (c->use_localtime) {
1190  time_t now0;
1191  struct tm *tm, tmpbuf;
1192  time(&now0);
1193  tm = localtime_r(&now0, &tmpbuf);
1194  if (!strftime(oc->filename, sizeof(oc->filename), c->basename, tm)) {
1195  av_log(oc, AV_LOG_ERROR, "Could not get segment filename with use_localtime\n");
1196  return AVERROR(EINVAL);
1197  }
1198 
1199  err = sls_flag_use_localtime_filename(oc, c);
1200  if (err < 0) {
1201  return AVERROR(ENOMEM);
1202  }
1203 
1204  if (c->use_localtime_mkdir) {
1205  const char *dir;
1206  char *fn_copy = av_strdup(oc->filename);
1207  if (!fn_copy) {
1208  return AVERROR(ENOMEM);
1209  }
1210  dir = av_dirname(fn_copy);
1211  if (mkdir_p(dir) == -1 && errno != EEXIST) {
1212  av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir);
1213  av_free(fn_copy);
1214  return AVERROR(errno);
1215  }
1216  av_free(fn_copy);
1217  }
1218  } else if (replace_int_data_in_filename(oc->filename, sizeof(oc->filename),
1219 #if FF_API_HLS_WRAP
1220  c->basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
1221 #else
1222  c->basename, 'd', c->sequence) < 1) {
1223 #endif
1224  av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -use_localtime 1 with it\n", c->basename);
1225  return AVERROR(EINVAL);
1226  }
1227  if( c->vtt_basename) {
1228  if (replace_int_data_in_filename(vtt_oc->filename, sizeof(vtt_oc->filename),
1229 #if FF_API_HLS_WRAP
1230  c->vtt_basename, 'd', c->wrap ? c->sequence % c->wrap : c->sequence) < 1) {
1231 #else
1232  c->vtt_basename, 'd', c->sequence) < 1) {
1233 #endif
1234  av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", c->vtt_basename);
1235  return AVERROR(EINVAL);
1236  }
1237  }
1238  }
1239  c->number++;
1240 
1241  set_http_options(s, &options, c);
1242 
1243  if (c->flags & HLS_TEMP_FILE) {
1244  av_strlcat(oc->filename, ".tmp", sizeof(oc->filename));
1245  }
1246 
1247  if (c->key_info_file || c->encrypt) {
1248  if (c->key_info_file && c->encrypt) {
1249  av_log(s, AV_LOG_WARNING, "Cannot use both -hls_key_info_file and -hls_enc,"
1250  " will use -hls_key_info_file priority\n");
1251  }
1252 
1253  if (c->number <= 1 || (c->flags & HLS_PERIODIC_REKEY)) {
1254  if (c->key_info_file) {
1255  if ((err = hls_encryption_start(s)) < 0)
1256  goto fail;
1257  } else {
1258  if ((err = do_encrypt(s)) < 0)
1259  goto fail;
1260  }
1261  }
1262  if ((err = av_dict_set(&options, "encryption_key", c->key_string, 0))
1263  < 0)
1264  goto fail;
1265  err = av_strlcpy(iv_string, c->iv_string, sizeof(iv_string));
1266  if (!err)
1267  snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, c->sequence);
1268  if ((err = av_dict_set(&options, "encryption_iv", iv_string, 0)) < 0)
1269  goto fail;
1270 
1271  filename = av_asprintf("crypto:%s", oc->filename);
1272  if (!filename) {
1273  err = AVERROR(ENOMEM);
1274  goto fail;
1275  }
1276  err = s->io_open(s, &oc->pb, filename, AVIO_FLAG_WRITE, &options);
1277  av_free(filename);
1278  av_dict_free(&options);
1279  if (err < 0)
1280  return err;
1281  } else
1282  if ((err = s->io_open(s, &oc->pb, oc->filename, AVIO_FLAG_WRITE, &options)) < 0)
1283  goto fail;
1284  if (c->vtt_basename) {
1285  set_http_options(s, &options, c);
1286  if ((err = s->io_open(s, &vtt_oc->pb, vtt_oc->filename, AVIO_FLAG_WRITE, &options)) < 0)
1287  goto fail;
1288  }
1289  av_dict_free(&options);
1290 
1291  if (c->segment_type == SEGMENT_TYPE_FMP4 && !(c->flags & HLS_SINGLE_FILE)) {
1292  write_styp(oc->pb);
1293  } else {
1294  /* We only require one PAT/PMT per segment. */
1295  if (oc->oformat->priv_class && oc->priv_data) {
1296  char period[21];
1297 
1298  snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1);
1299 
1300  av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
1301  av_opt_set(oc->priv_data, "sdt_period", period, 0);
1302  av_opt_set(oc->priv_data, "pat_period", period, 0);
1303  }
1304  }
1305 
1306  if (c->vtt_basename) {
1307  err = avformat_write_header(vtt_oc,NULL);
1308  if (err < 0)
1309  return err;
1310  }
1311 
1312  return 0;
1313 fail:
1314  av_dict_free(&options);
1315 
1316  return err;
1317 }
1318 
1320 {
1321  char b[21];
1322  time_t t = time(NULL);
1323  struct tm *p, tmbuf;
1324  HLSContext *hls = s->priv_data;
1325 
1326  p = localtime_r(&t, &tmbuf);
1327  // no %s support when strftime returned error or left format string unchanged
1328  // also no %s support on MSVC, which invokes the invalid parameter handler on unsupported format strings, instead of returning an error
1329  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1330  return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.m4s" : "-%s.m4s";
1331  }
1332  return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts";
1333 }
1334 
1336 {
1337  HLSContext *hls = s->priv_data;
1338  int ret, i;
1339  char *p = NULL;
1340  const char *pattern = "%d.ts";
1341  const char *pattern_localtime_fmt = get_default_pattern_localtime_fmt(s);
1342  const char *vtt_pattern = "%d.vtt";
1343  AVDictionary *options = NULL;
1344  int basename_size = 0;
1345  int vtt_basename_size = 0;
1346  int fmp4_init_filename_len = strlen(hls->fmp4_init_filename) + 1;
1347 
1348  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1349  pattern = "%d.m4s";
1350  }
1353  time_t t = time(NULL); // we will need it in either case
1355  hls->start_sequence = (int64_t)t;
1357  char b[15];
1358  struct tm *p, tmbuf;
1359  if (!(p = localtime_r(&t, &tmbuf)))
1360  return AVERROR(ENOMEM);
1361  if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p))
1362  return AVERROR(ENOMEM);
1363  hls->start_sequence = strtoll(b, NULL, 10);
1364  }
1365  av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
1366  }
1367 
1368  hls->sequence = hls->start_sequence;
1369  hls->recording_time = (hls->init_time ? hls->init_time : hls->time) * AV_TIME_BASE;
1370  hls->start_pts = AV_NOPTS_VALUE;
1371  hls->current_segment_final_filename_fmt[0] = '\0';
1372 
1373  if (hls->flags & HLS_PROGRAM_DATE_TIME) {
1374  time_t now0;
1375  time(&now0);
1376  hls->initial_prog_date_time = now0;
1377  }
1378 
1379  if (hls->format_options_str) {
1380  ret = av_dict_parse_string(&hls->format_options, hls->format_options_str, "=", ":", 0);
1381  if (ret < 0) {
1382  av_log(s, AV_LOG_ERROR, "Could not parse format options list '%s'\n", hls->format_options_str);
1383  goto fail;
1384  }
1385  }
1386 
1387  for (i = 0; i < s->nb_streams; i++) {
1388  hls->has_video +=
1390  hls->has_subtitle +=
1392  }
1393 
1394  if (hls->has_video > 1)
1396  "More than a single video stream present, "
1397  "expect issues decoding it.\n");
1398 
1399  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1400  hls->oformat = av_guess_format("mp4", NULL, NULL);
1401  } else {
1402  hls->oformat = av_guess_format("mpegts", NULL, NULL);
1403  }
1404 
1405  if (!hls->oformat) {
1407  goto fail;
1408  }
1409 
1410  if(hls->has_subtitle) {
1411  hls->vtt_oformat = av_guess_format("webvtt", NULL, NULL);
1412  if (!hls->oformat) {
1414  goto fail;
1415  }
1416  }
1417 
1418  if (hls->segment_filename) {
1419  hls->basename = av_strdup(hls->segment_filename);
1420  if (!hls->basename) {
1421  ret = AVERROR(ENOMEM);
1422  goto fail;
1423  }
1424  } else {
1425  if (hls->flags & HLS_SINGLE_FILE) {
1426  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1427  pattern = ".m4s";
1428  } else {
1429  pattern = ".ts";
1430  }
1431  }
1432 
1433  if (hls->use_localtime) {
1434  basename_size = strlen(s->filename) + strlen(pattern_localtime_fmt) + 1;
1435  } else {
1436  basename_size = strlen(s->filename) + strlen(pattern) + 1;
1437  }
1438  hls->basename = av_malloc(basename_size);
1439  if (!hls->basename) {
1440  ret = AVERROR(ENOMEM);
1441  goto fail;
1442  }
1443 
1444  av_strlcpy(hls->basename, s->filename, basename_size);
1445 
1446  p = strrchr(hls->basename, '.');
1447  if (p)
1448  *p = '\0';
1449  if (hls->use_localtime) {
1450  av_strlcat(hls->basename, pattern_localtime_fmt, basename_size);
1451  } else {
1452  av_strlcat(hls->basename, pattern, basename_size);
1453  }
1454  }
1455 
1456  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1457  if (av_strcasecmp(hls->fmp4_init_filename, "init.mp4")) {
1458  hls->base_output_dirname = av_malloc(fmp4_init_filename_len);
1459  if (!hls->base_output_dirname) {
1460  ret = AVERROR(ENOMEM);
1461  goto fail;
1462  }
1463  av_strlcpy(hls->base_output_dirname, hls->fmp4_init_filename, fmp4_init_filename_len);
1464  } else {
1465  if (basename_size > 0) {
1466  hls->base_output_dirname = av_malloc(basename_size);
1467  } else {
1468  hls->base_output_dirname = av_malloc(strlen(hls->fmp4_init_filename) + 1);
1469  }
1470  if (!hls->base_output_dirname) {
1471  ret = AVERROR(ENOMEM);
1472  goto fail;
1473  }
1474 
1475  if (basename_size > 0) {
1476  av_strlcpy(hls->base_output_dirname, s->filename, basename_size);
1477  p = strrchr(hls->base_output_dirname, '/');
1478  }
1479  if (p) {
1480  *(p + 1) = '\0';
1481  av_strlcat(hls->base_output_dirname, hls->fmp4_init_filename, basename_size);
1482  } else {
1483  av_strlcpy(hls->base_output_dirname, hls->fmp4_init_filename, fmp4_init_filename_len);
1484  }
1485  }
1486  }
1487 
1488  if (!hls->use_localtime) {
1490  if (ret < 0) {
1491  goto fail;
1492  }
1493  } else {
1494  ret = sls_flag_check_duration_size(hls);
1495  if (ret < 0) {
1496  goto fail;
1497  }
1498  }
1499  if(hls->has_subtitle) {
1500 
1501  if (hls->flags & HLS_SINGLE_FILE)
1502  vtt_pattern = ".vtt";
1503  vtt_basename_size = strlen(s->filename) + strlen(vtt_pattern) + 1;
1504  hls->vtt_basename = av_malloc(vtt_basename_size);
1505  if (!hls->vtt_basename) {
1506  ret = AVERROR(ENOMEM);
1507  goto fail;
1508  }
1509  hls->vtt_m3u8_name = av_malloc(vtt_basename_size);
1510  if (!hls->vtt_m3u8_name ) {
1511  ret = AVERROR(ENOMEM);
1512  goto fail;
1513  }
1514  av_strlcpy(hls->vtt_basename, s->filename, vtt_basename_size);
1515  p = strrchr(hls->vtt_basename, '.');
1516  if (p)
1517  *p = '\0';
1518 
1519  if( hls->subtitle_filename ) {
1520  strcpy(hls->vtt_m3u8_name, hls->subtitle_filename);
1521  } else {
1522  strcpy(hls->vtt_m3u8_name, hls->vtt_basename);
1523  av_strlcat(hls->vtt_m3u8_name, "_vtt.m3u8", vtt_basename_size);
1524  }
1525  av_strlcat(hls->vtt_basename, vtt_pattern, vtt_basename_size);
1526  }
1527 
1528  if ((hls->flags & HLS_SINGLE_FILE) && (hls->segment_type == SEGMENT_TYPE_FMP4)) {
1529  hls->fmp4_init_filename = av_strdup(hls->basename);
1530  if (!hls->fmp4_init_filename) {
1531  ret = AVERROR(ENOMEM);
1532  goto fail;
1533  }
1534  }
1535 
1536  if ((ret = hls_mux_init(s)) < 0)
1537  goto fail;
1538 
1539  if (hls->flags & HLS_APPEND_LIST) {
1540  parse_playlist(s, s->filename);
1541  hls->discontinuity = 1;
1542  if (hls->init_time > 0) {
1543  av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
1544  " hls_init_time value will have no effect\n");
1545  hls->init_time = 0;
1546  hls->recording_time = hls->time * AV_TIME_BASE;
1547  }
1548  }
1549 
1550  if (hls->segment_type != SEGMENT_TYPE_FMP4 || hls->flags & HLS_SINGLE_FILE) {
1551  if ((ret = hls_start(s)) < 0)
1552  goto fail;
1553  }
1554 
1555  av_dict_copy(&options, hls->format_options, 0);
1556  ret = avformat_write_header(hls->avf, &options);
1557  if (av_dict_count(options)) {
1558  av_log(s, AV_LOG_ERROR, "Some of provided format options in '%s' are not recognized\n", hls->format_options_str);
1559  ret = AVERROR(EINVAL);
1560  goto fail;
1561  }
1562  //av_assert0(s->nb_streams == hls->avf->nb_streams);
1563  for (i = 0; i < s->nb_streams; i++) {
1564  AVStream *inner_st;
1565  AVStream *outer_st = s->streams[i];
1566 
1567  if (hls->max_seg_size > 0) {
1568  if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
1569  (outer_st->codecpar->bit_rate > hls->max_seg_size)) {
1570  av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, "
1571  "(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.",
1572  outer_st->codecpar->bit_rate, hls->max_seg_size);
1573  }
1574  }
1575 
1576  if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
1577  inner_st = hls->avf->streams[i];
1578  else if (hls->vtt_avf)
1579  inner_st = hls->vtt_avf->streams[0];
1580  else {
1581  /* We have a subtitle stream, when the user does not want one */
1582  inner_st = NULL;
1583  continue;
1584  }
1585  avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
1586  }
1587 fail:
1588 
1589  av_dict_free(&options);
1590  if (ret < 0) {
1592  av_freep(&hls->basename);
1593  av_freep(&hls->vtt_basename);
1594  av_freep(&hls->key_basename);
1595  if (hls->avf)
1596  avformat_free_context(hls->avf);
1597  if (hls->vtt_avf)
1599 
1600  }
1601  return ret;
1602 }
1603 
1605 {
1606  HLSContext *hls = s->priv_data;
1607  AVFormatContext *oc = NULL;
1608  AVStream *st = s->streams[pkt->stream_index];
1609  int64_t end_pts = hls->recording_time * hls->number;
1610  int is_ref_pkt = 1;
1611  int ret = 0, can_split = 1;
1612  int stream_index = 0;
1613  int range_length = 0;
1614  uint8_t *buffer = NULL;
1615 
1616  if (hls->sequence - hls->nb_entries > hls->start_sequence && hls->init_time > 0) {
1617  /* reset end_pts, hls->recording_time at end of the init hls list */
1618  int init_list_dur = hls->init_time * hls->nb_entries * AV_TIME_BASE;
1619  int after_init_list_dur = (hls->sequence - hls->nb_entries ) * hls->time * AV_TIME_BASE;
1620  hls->recording_time = hls->time * AV_TIME_BASE;
1621  end_pts = init_list_dur + after_init_list_dur ;
1622  }
1623 
1624  if( st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE ) {
1625  oc = hls->vtt_avf;
1626  stream_index = 0;
1627  } else {
1628  oc = hls->avf;
1629  stream_index = pkt->stream_index;
1630  }
1631  if (hls->start_pts == AV_NOPTS_VALUE) {
1632  hls->start_pts = pkt->pts;
1633  hls->end_pts = pkt->pts;
1634  }
1635 
1636  if (hls->has_video) {
1637  can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
1638  ((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME));
1639  is_ref_pkt = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO;
1640  }
1641  if (pkt->pts == AV_NOPTS_VALUE)
1642  is_ref_pkt = can_split = 0;
1643 
1644  if (is_ref_pkt) {
1645  if (hls->new_start) {
1646  hls->new_start = 0;
1647  hls->duration = (double)(pkt->pts - hls->end_pts)
1648  * st->time_base.num / st->time_base.den;
1649  hls->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den;
1650  } else {
1651  if (pkt->duration) {
1652  hls->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den;
1653  } else {
1654  av_log(s, AV_LOG_WARNING, "pkt->duration = 0, maybe the hls segment duration will not precise\n");
1655  hls->duration = (double)(pkt->pts - hls->end_pts) * st->time_base.num / st->time_base.den;
1656  }
1657  }
1658 
1659  }
1660  if (hls->packets_written && can_split && av_compare_ts(pkt->pts - hls->start_pts, st->time_base,
1661  end_pts, AV_TIME_BASE_Q) >= 0) {
1662  int64_t new_start_pos;
1663  char *old_filename = av_strdup(hls->avf->filename);
1664  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1665 
1666  if (!old_filename) {
1667  return AVERROR(ENOMEM);
1668  }
1669 
1670  av_write_frame(hls->avf, NULL); /* Flush any buffered data */
1671 
1672  new_start_pos = avio_tell(hls->avf->pb);
1673  hls->size = new_start_pos - hls->start_pos;
1674 
1675  if (!byterange_mode) {
1676  if (hls->segment_type == SEGMENT_TYPE_FMP4 && !hls->init_range_length) {
1677  avio_flush(oc->pb);
1678  range_length = avio_close_dyn_buf(oc->pb, &buffer);
1679  avio_write(hls->out, buffer, range_length);
1680  hls->init_range_length = range_length;
1681  avio_open_dyn_buf(&oc->pb);
1682  hls->packets_written = 0;
1683  ff_format_io_close(s, &hls->out);
1684  } else {
1685  ff_format_io_close(s, &oc->pb);
1686  }
1687  if (hls->vtt_avf) {
1688  ff_format_io_close(s, &hls->vtt_avf->pb);
1689  }
1690  }
1691  if ((hls->flags & HLS_TEMP_FILE) && oc->filename[0]) {
1692  if (!(hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size <= 0))
1693  if ((hls->avf->oformat->priv_class && hls->avf->priv_data) && hls->segment_type != SEGMENT_TYPE_FMP4)
1694  av_opt_set(hls->avf->priv_data, "mpegts_flags", "resend_headers", 0);
1695  hls_rename_temp_file(s, oc);
1696  }
1697 
1698  if (hls->fmp4_init_mode) {
1699  hls->number--;
1700  }
1701 
1702  if (!hls->fmp4_init_mode || byterange_mode)
1703  ret = hls_append_segment(s, hls, hls->duration, hls->start_pos, hls->size);
1704 
1705  hls->start_pos = new_start_pos;
1706  if (ret < 0) {
1707  av_free(old_filename);
1708  return ret;
1709  }
1710 
1711  hls->end_pts = pkt->pts;
1712  hls->duration = 0;
1713 
1714  hls->fmp4_init_mode = 0;
1715  if (hls->flags & HLS_SINGLE_FILE) {
1716  hls->number++;
1717  } else if (hls->max_seg_size > 0) {
1718  if (hls->start_pos >= hls->max_seg_size) {
1719  hls->sequence++;
1720  sls_flag_file_rename(hls, old_filename);
1721  ret = hls_start(s);
1722  hls->start_pos = 0;
1723  /* When split segment by byte, the duration is short than hls_time,
1724  * so it is not enough one segment duration as hls_time, */
1725  hls->number--;
1726  }
1727  hls->number++;
1728  } else {
1729  sls_flag_file_rename(hls, old_filename);
1730  ret = hls_start(s);
1731  }
1732  av_free(old_filename);
1733 
1734  if (ret < 0) {
1735  return ret;
1736  }
1737 
1738  if (!hls->fmp4_init_mode || byterange_mode)
1739  if ((ret = hls_window(s, 0)) < 0) {
1740  return ret;
1741  }
1742  }
1743 
1744  hls->packets_written++;
1745  ret = ff_write_chained(oc, stream_index, pkt, s, 0);
1746 
1747  return ret;
1748 }
1749 
1750 static int hls_write_trailer(struct AVFormatContext *s)
1751 {
1752  HLSContext *hls = s->priv_data;
1753  AVFormatContext *oc = hls->avf;
1754  AVFormatContext *vtt_oc = hls->vtt_avf;
1755  char *old_filename = av_strdup(hls->avf->filename);
1756 
1757  if (!old_filename) {
1758  return AVERROR(ENOMEM);
1759  }
1760 
1761 
1762  av_write_trailer(oc);
1763  if (oc->pb) {
1764  hls->size = avio_tell(hls->avf->pb) - hls->start_pos;
1765  ff_format_io_close(s, &oc->pb);
1766 
1767  if ((hls->flags & HLS_TEMP_FILE) && oc->filename[0]) {
1768  hls_rename_temp_file(s, oc);
1769  }
1770 
1771  /* after av_write_trailer, then duration + 1 duration per packet */
1772  hls_append_segment(s, hls, hls->duration + hls->dpp, hls->start_pos, hls->size);
1773  }
1774 
1775  sls_flag_file_rename(hls, old_filename);
1776 
1777  if (vtt_oc) {
1778  if (vtt_oc->pb)
1779  av_write_trailer(vtt_oc);
1780  hls->size = avio_tell(hls->vtt_avf->pb) - hls->start_pos;
1781  ff_format_io_close(s, &vtt_oc->pb);
1782  }
1783  av_freep(&hls->basename);
1785  av_freep(&hls->key_basename);
1787 
1788  hls->avf = NULL;
1789  hls_window(s, 1);
1790 
1792  if (vtt_oc) {
1793  av_freep(&hls->vtt_basename);
1794  av_freep(&hls->vtt_m3u8_name);
1795  avformat_free_context(vtt_oc);
1796  }
1797 
1800  av_free(old_filename);
1801  return 0;
1802 }
1803 
1804 #define OFFSET(x) offsetof(HLSContext, x)
1805 #define E AV_OPT_FLAG_ENCODING_PARAM
1806 static const AVOption options[] = {
1807  {"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
1808  {"hls_time", "set segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
1809  {"hls_init_time", "set segment length in seconds at init list", OFFSET(init_time), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0, FLT_MAX, E},
1810  {"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
1811  {"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},
1812  {"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},
1813 #if FF_API_HLS_WRAP
1814  {"hls_wrap", "set number after which the index wraps (will be deprecated)", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
1815 #endif
1816  {"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},
1817  {"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1818  {"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1819  {"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
1820  {"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},
1821  {"hls_enc", "enable AES128 encryption support", OFFSET(encrypt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E},
1822  {"hls_enc_key", "hex-coded 16 byte key to encrypt the segments", OFFSET(key), AV_OPT_TYPE_STRING, .flags = E},
1823  {"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},
1824  {"hls_enc_iv", "hex-coded 16 byte initialization vector", OFFSET(iv), AV_OPT_TYPE_STRING, .flags = E},
1825  {"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1826  {"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"},
1827  {"mpegts", "make segment file to mpegts files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, UINT_MAX, E, "segment_type"},
1828  {"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"},
1829  {"hls_fmp4_init_filename", "set fragment mp4 file init filename", OFFSET(fmp4_init_filename), AV_OPT_TYPE_STRING, {.str = "init.mp4"}, 0, 0, E},
1830  {"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
1831  {"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"},
1832  {"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"},
1833  {"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"},
1834  {"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, "flags"},
1835  {"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, "flags"},
1836  {"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, "flags"},
1837  {"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"},
1838  {"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"},
1839  {"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
1840  {"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"},
1841  {"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"},
1842  {"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"},
1843  {"periodic_rekey", "reload keyinfo file periodically for re-keying", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PERIODIC_REKEY }, 0, UINT_MAX, E, "flags"},
1844  {"use_localtime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
1845  {"use_localtime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
1846  {"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" },
1847  {"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, "pl_type" },
1848  {"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, "pl_type" },
1849  {"method", "set the HTTP method(default: PUT)", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1850  {"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" },
1851  {"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" },
1852  {"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" },
1853  {"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" },
1854  {"http_user_agent", "override User-Agent field in HTTP header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
1855  { NULL },
1856 };
1857 
1858 static const AVClass hls_class = {
1859  .class_name = "hls muxer",
1860  .item_name = av_default_item_name,
1861  .option = options,
1862  .version = LIBAVUTIL_VERSION_INT,
1863 };
1864 
1865 
1867  .name = "hls",
1868  .long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
1869  .extensions = "m3u8",
1870  .priv_data_size = sizeof(HLSContext),
1871  .audio_codec = AV_CODEC_ID_AAC,
1872  .video_codec = AV_CODEC_ID_H264,
1873  .subtitle_codec = AV_CODEC_ID_WEBVTT,
1878  .priv_class = &hls_class,
1879 };
float time
Definition: hlsenc.c:118
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:994
#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:171
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:153
PlaylistType
Definition: hlsenc.c:96
AVIOInterruptCB interrupt_callback
Custom interrupt callbacks for the I/O layer.
Definition: avformat.h:1581
int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer)
Return the written size and a pointer to the buffer.
Definition: aviobuf.c:1351
AVOption.
Definition: opt.h:246
static int hls_write_trailer(struct AVFormatContext *s)
Definition: hlsenc.c:1750
int av_write_frame(AVFormatContext *s, AVPacket *pkt)
Write a packet to an output media file.
Definition: mux.c:887
#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:4747
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:237
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:1332
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: avcodec.h:3736
char * vtt_format_options_str
Definition: hlsenc.c:159
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown)
Definition: avformat.h:934
char * key_basename
Definition: hlsenc.c:167
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:132
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:188
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
Definition: aviobuf.c:244
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:193
#define AVIO_FLAG_READ
read-only
Definition: avio.h:655
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:656
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:420
int version
Definition: avisynth_c.h:766
int fmp4_init_mode
Definition: hlsenc.c:129
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:236
static AVPacket pkt
#define AVFMT_ALLOW_FLUSH
Format allows flushing.
Definition: avformat.h:478
int avio_open_dyn_buf(AVIOContext **s)
Open a write only memory stream.
Definition: aviobuf.c:1322
static int hls_window(AVFormatContext *s, int last)
Definition: hlsenc.c:1018
Format I/O context.
Definition: avformat.h:1325
int max_nb_segments
Definition: hlsenc.c:120
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:433
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:166
const char * av_basename(const char *path)
Thread safe basename.
Definition: avstring.c:257
int new_start
Definition: hlsenc.c:137
uint8_t
static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls, double duration, int64_t pos, int64_t size)
Definition: hlsenc.c:812
#define av_malloc(s)
float init_time
Definition: hlsenc.c:119
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:1417
static void hls_free_segments(HLSSegment *p)
Definition: hlsenc.c:983
HLSSegment * old_segments
Definition: hlsenc.c:151
int64_t end_pts
Definition: hlsenc.c:140
void ff_format_io_close(AVFormatContext *s, AVIOContext **pb)
Definition: utils.c:5454
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
Definition: utils.c:4377
AVStream ** streams
A list of all streams in the file.
Definition: avformat.h:1393
int64_t duration
Definition: movenc.c:63
int discont
Definition: hlsenc.c:64
char * protocol_whitelist
',' separated list of allowed protocols.
Definition: avformat.h:1863
static int flags
Definition: log.c:57
#define AVERROR_EOF
End of file.
Definition: error.h:55
char * format_options_str
Definition: hlsenc.c:158
#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:558
char * key
Definition: hlsenc.c:164
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:662
#define av_log(a,...)
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
Definition: aviobuf.c:646
struct AVOutputFormat * oformat
The output container format.
Definition: avformat.h:1344
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
Definition: avcodec.h:3765
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1431
char * base_output_dirname
Definition: hlsenc.c:154
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:1806
double initial_prog_date_time
Definition: hlsenc.c:178
static int hls_write_header(AVFormatContext *s)
Definition: hlsenc.c:1335
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: utils.c:2224
#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:1543
#define OFFSET(x)
Definition: hlsenc.c:1804
#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:190
int avio_close(AVIOContext *s)
Close the resource accessed by the AVIOContext s and free it.
Definition: aviobuf.c:1121
#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:3732
AVDictionary * vtt_format_options
Definition: hlsenc.c:174
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:135
double duration
Definition: hlsenc.c:141
static av_always_inline av_const double round(double x)
Definition: libm.h:444
#define FF_API_HLS_WRAP
Definition: version.h:71
char key_uri[LINE_BUFFER_SIZE+1]
Definition: hlsenc.c:68
int64_t recording_time
Definition: hlsenc.c:134
#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:289
int64_t pos
Definition: hlsenc.c:65
char * vtt_basename
Definition: hlsenc.c:155
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:1405
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:1809
static int get_int_from_double(double val)
Definition: hlsenc.c:183
char * baseurl
Definition: hlsenc.c:157
static void set_http_options(AVFormatContext *s, AVDictionary **options, HLSContext *c)
Definition: hlsenc.c:221
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:1381
int discontinuity_set
Definition: hlsenc.c:146
StartSequenceSourceType
Definition: hlsenc.c:50
static int sls_flag_check_duration_size_index(HLSContext *hls)
Definition: hlsenc.c:708
unsigned number
Definition: hlsenc.c:105
char key_string[KEYSIZE *2+1]
Definition: hlsenc.c:172
#define HLS_MICROSECOND_UNIT
Definition: hlsenc.c:58
static int randomize(uint8_t *buf, int len)
Definition: hlsenc.c:406
int packets_written
Definition: hlsenc.c:112
int void avio_flush(AVIOContext *s)
Force flushing of buffered data.
Definition: aviobuf.c:236
int64_t max_seg_size
Definition: hlsenc.c:144
char filename[1024]
input or output filename
Definition: avformat.h:1401
#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:508
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:139
static int write_trailer(AVFormatContext *s1)
Definition: v4l2enc.c:94
#define AVFMT_GLOBALHEADER
Format wants global header.
Definition: avformat.h:468
static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition: hlsenc.c:1604
const char * name
Definition: avformat.h:507
HLSSegment * last_segment
Definition: hlsenc.c:150
int discontinuity
Definition: hlsenc.c:147
#define E
Definition: hlsenc.c:1805
AVDictionary * metadata
Definition: avformat.h:936
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:149
AVDictionary * format_options
Definition: hlsenc.c:161
int ff_get_line(AVIOContext *s, char *buf, int maxlen)
Read a whole line of text from AVIOContext.
Definition: aviobuf.c:807
const AVClass * priv_class
AVClass for the private context.
Definition: avformat.h:535
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:480
static int read_chomp_line(AVIOContext *s, char *buf, int maxlen)
Definition: hlsenc.c:541
static void sls_flag_file_rename(HLSContext *hls, char *old_filename)
Definition: hlsenc.c:751
int use_localtime
flag to expand filename with localtime
Definition: hlsenc.c:131
Stream structure.
Definition: avformat.h:872
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
AVIOContext * out
Definition: hlsenc.c:111
int init_range_length
Definition: hlsenc.c:113
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:165
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:251
static int sls_flag_use_localtime_filename(AVFormatContext *oc, HLSContext *c)
Definition: hlsenc.c:758
int has_subtitle
Definition: hlsenc.c:136
#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:1367
static int hls_encryption_start(AVFormatContext *s)
Definition: hlsenc.c:489
const struct AVCodecTag *const * codec_tag
List of supported codec_id-codec_tag pairs, ordered by "better choice first".
Definition: avformat.h:532
char * key_info_file
Definition: hlsenc.c:169
AVOutputFormat * oformat
Definition: hlsenc.c:109
double dpp
Definition: hlsenc.c:138
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:176
char * fmp4_init_filename
Definition: hlsenc.c:127
void * buf
Definition: avisynth_c.h:690
int allowcache
Definition: hlsenc.c:133
int segment_type
Definition: hlsenc.c:128
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:545
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:1007
int encrypt
Definition: hlsenc.c:163
char iv_string[KEYSIZE *2+1]
Definition: hlsenc.c:173
#define snprintf
Definition: snprintf.h:34
void avformat_free_context(AVFormatContext *s)
Free an AVFormatContext and all its streams.
Definition: utils.c:4312
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:1090
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:170
static int hls_mux_init(AVFormatContext *s)
Definition: hlsenc.c:549
static HLSSegment * find_segment_by_filename(HLSSegment *segment, const char *filename)
Definition: hlsenc.c:652
int64_t size
Definition: hlsenc.c:143
static const char * get_default_pattern_localtime_fmt(AVFormatContext *s)
Definition: hlsenc.c:1319
char current_segment_final_filename_fmt[1024]
Definition: hlsenc.c:179
SegmentType
Definition: hlsenc.c:91
uint32_t pl_type
Definition: hlsenc.c:125
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:145
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:465
static double c[64]
const char * av_dirname(char *path)
Thread safe dirname.
Definition: avstring.c:274
uint32_t flags
Definition: hlsenc.c:124
static int hls_delete_old_segments(AVFormatContext *s, HLSContext *hls)
Definition: hlsenc.c:299
int pts_wrap_bits
number of bits in pts (used for wrapping control)
Definition: avformat.h:1059
int den
Denominator.
Definition: rational.h:60
static int parse_playlist(AVFormatContext *s, const char *url)
Definition: hlsenc.c:898
#define KEYSIZE
Definition: hlsenc.c:56
int64_t start_pos
Definition: hlsenc.c:142
char * segment_filename
Definition: hlsenc.c:126
#define av_free(p)
int len
char * vtt_m3u8_name
Definition: hlsenc.c:156
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:1163
void * priv_data
Format private data.
Definition: avformat.h:1353
char * subtitle_filename
Definition: hlsenc.c:160
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:115
AVOutputFormat ff_hls_muxer
Definition: hlsenc.c:1866
int av_write_trailer(AVFormatContext *s)
Write the stream trailer to an output media file and free the file private data.
Definition: mux.c:1261
void avio_wb32(AVIOContext *s, unsigned int val)
Definition: aviobuf.c:375
char * protocol_blacklist
',' separated list of disallowed protocols.
Definition: avformat.h:1898
FILE * out
Definition: movenc.c:54
#define av_freep(p)
#define AVERROR_MUXER_NOT_FOUND
Muxer not found.
Definition: error.h:60
AVCodecParameters * codecpar
Codec parameters associated with this stream.
Definition: avformat.h:1014
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:3740
AVOutputFormat * vtt_oformat
Definition: hlsenc.c:110
static int sls_flag_check_duration_size(HLSContext *hls)
Definition: hlsenc.c:731
int stream_index
Definition: avcodec.h:1401
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avformat.h:901
static const AVClass hls_class
Definition: hlsenc.c:1858
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:1885
char * ff_data_to_hex(char *buf, const uint8_t *src, int size, int lowercase)
Definition: utils.c:4698
This structure stores compressed data.
Definition: avcodec.h:1376
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:1891
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1392
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
GLuint buffer
Definition: opengl_enc.c:102
int avio_printf(AVIOContext *s, const char *fmt,...) av_printf_format(2
AVFormatContext * vtt_avf
Definition: hlsenc.c:116