FFmpeg
hlsenc.c
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1 /*
2  * Apple HTTP Live Streaming segmenter
3  * Copyright (c) 2012, Luca Barbato
4  * Copyright (c) 2017 Akamai Technologies, Inc.
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #include "config.h"
24 #include "config_components.h"
25 #include <stdint.h>
26 #if HAVE_UNISTD_H
27 #include <unistd.h>
28 #endif
29 
30 #if CONFIG_GCRYPT
31 #include <gcrypt.h>
32 #elif CONFIG_OPENSSL
33 #include <openssl/rand.h>
34 #endif
35 
36 #include "libavutil/avassert.h"
37 #include "libavutil/mathematics.h"
38 #include "libavutil/avstring.h"
39 #include "libavutil/bprint.h"
40 #include "libavutil/intreadwrite.h"
41 #include "libavutil/opt.h"
42 #include "libavutil/log.h"
43 #include "libavutil/time.h"
45 
46 #include "libavcodec/avcodec.h"
47 
48 #include "avformat.h"
49 #include "avio_internal.h"
50 #include "avc.h"
51 #if CONFIG_HTTP_PROTOCOL
52 #include "http.h"
53 #endif
54 #include "hlsplaylist.h"
55 #include "internal.h"
56 #include "mux.h"
57 #include "os_support.h"
58 
59 typedef enum {
66 
67 typedef enum {
71 
72 #define KEYSIZE 16
73 #define LINE_BUFFER_SIZE MAX_URL_SIZE
74 #define HLS_MICROSECOND_UNIT 1000000
75 #define BUFSIZE (16 * 1024)
76 #define POSTFIX_PATTERN "_%d"
77 
78 typedef struct HLSSegment {
81  double duration; /* in seconds */
82  int discont;
83  int64_t pos;
84  int64_t size;
85  int64_t keyframe_pos;
86  int64_t keyframe_size;
87  unsigned var_stream_idx;
88 
90  char iv_string[KEYSIZE*2 + 1];
91 
92  struct HLSSegment *next;
94 } HLSSegment;
95 
96 typedef enum HLSFlags {
97  // Generate a single media file and use byte ranges in the playlist.
98  HLS_SINGLE_FILE = (1 << 0),
99  HLS_DELETE_SEGMENTS = (1 << 1),
101  HLS_DISCONT_START = (1 << 3),
102  HLS_OMIT_ENDLIST = (1 << 4),
103  HLS_SPLIT_BY_TIME = (1 << 5),
104  HLS_APPEND_LIST = (1 << 6),
106  HLS_SECOND_LEVEL_SEGMENT_INDEX = (1 << 8), // include segment index in segment filenames when use_localtime e.g.: %%03d
107  HLS_SECOND_LEVEL_SEGMENT_DURATION = (1 << 9), // include segment duration (microsec) in segment filenames when use_localtime e.g.: %%09t
108  HLS_SECOND_LEVEL_SEGMENT_SIZE = (1 << 10), // include segment size (bytes) in segment filenames when use_localtime e.g.: %%014s
109  HLS_TEMP_FILE = (1 << 11),
110  HLS_PERIODIC_REKEY = (1 << 12),
112  HLS_I_FRAMES_ONLY = (1 << 14),
113 } HLSFlags;
114 
115 typedef enum {
118 } SegmentType;
119 
120 typedef struct VariantStream {
121  unsigned var_stream_idx;
122  unsigned number;
123  int64_t sequence;
130  uint8_t *temp_buffer;
131  uint8_t *init_buffer;
132 
135 
140  double dpp; // duration per packet
141  int64_t start_pts;
142  int64_t end_pts;
143  int64_t video_lastpos;
146  double duration; // last segment duration computed so far, in seconds
147  int64_t start_pos; // last segment starting position
148  int64_t size; // last segment size
153 
157 
159  char *basename;
162  char *m3u8_name;
163 
165  char current_segment_final_filename_fmt[MAX_URL_SIZE]; // when renaming segments
166 
169 
171 
174  char key_string[KEYSIZE*2 + 1];
175  char iv_string[KEYSIZE*2 + 1];
176 
178  char codec_attr[128];
180  unsigned int nb_streams;
181  int m3u8_created; /* status of media play-list creation */
182  int is_default; /* default status of audio group */
183  const char *language; /* audio language name */
184  const char *agroup; /* audio group name */
185  const char *sgroup; /* subtitle group name */
186  const char *ccgroup; /* closed caption group name */
187  const char *varname; /* variant name */
188 } VariantStream;
189 
190 typedef struct ClosedCaptionsStream {
191  const char *ccgroup; /* closed caption group name */
192  const char *instreamid; /* closed captions INSTREAM-ID */
193  const char *language; /* closed captions language */
195 
196 typedef struct HLSContext {
197  const AVClass *class; // Class for private options.
198  int64_t start_sequence;
199  uint32_t start_sequence_source_type; // enum StartSequenceSourceType
200 
201  int64_t time; // Set by a private option.
202  int64_t init_time; // Set by a private option.
203  int max_nb_segments; // Set by a private option.
204  int hls_delete_threshold; // Set by a private option.
205  uint32_t flags; // enum HLSFlags
206  uint32_t pl_type; // enum PlaylistType
210  int resend_init_file; ///< resend init file into disk after refresh m3u8
211 
212  int use_localtime; ///< flag to expand filename with localtime
213  int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
215  int64_t recording_time;
216  int64_t max_seg_size; // every segment file max size
217 
218  char *baseurl;
222 
223  int encrypt;
224  char *key;
225  char *key_url;
226  char *iv;
229 
233  char key_string[KEYSIZE*2 + 1];
234  char iv_string[KEYSIZE*2 + 1];
236 
237  char *method;
238  char *user_agent;
239 
241  unsigned int nb_varstreams;
243  unsigned int nb_ccstreams;
244 
245  int master_m3u8_created; /* status of master play-list creation */
246  char *master_m3u8_url; /* URL of the master m3u8 file */
247  int version; /* HLS version */
248  char *var_stream_map; /* user specified variant stream map string */
249  char *cc_stream_map; /* user specified closed caption streams map string */
251  unsigned int master_publish_rate;
252  int http_persistent;
256  int64_t timeout;
258  char *headers;
259  int has_default_key; /* has DEFAULT field of var_stream_map */
260  int has_video_m3u8; /* has video stream m3u8 list */
261 } HLSContext;
262 
263 static int strftime_expand(const char *fmt, char **dest)
264 {
265  int r = 1;
266  time_t now0;
267  struct tm *tm, tmpbuf;
268  char *buf;
269 
270  buf = av_mallocz(MAX_URL_SIZE);
271  if (!buf)
272  return AVERROR(ENOMEM);
273 
274  time(&now0);
275  tm = localtime_r(&now0, &tmpbuf);
276  r = strftime(buf, MAX_URL_SIZE, fmt, tm);
277  if (!r) {
278  av_free(buf);
279  return AVERROR(EINVAL);
280  }
281  *dest = buf;
282 
283  return r;
284 }
285 
286 static int hlsenc_io_open(AVFormatContext *s, AVIOContext **pb, const char *filename,
288 {
289  HLSContext *hls = s->priv_data;
290  int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
291  int err = AVERROR_MUXER_NOT_FOUND;
292  if (!*pb || !http_base_proto || !hls->http_persistent) {
293  err = s->io_open(s, pb, filename, AVIO_FLAG_WRITE, options);
294 #if CONFIG_HTTP_PROTOCOL
295  } else {
296  URLContext *http_url_context = ffio_geturlcontext(*pb);
297  av_assert0(http_url_context);
298  err = ff_http_do_new_request(http_url_context, filename);
299  if (err < 0)
300  ff_format_io_close(s, pb);
301 
302 #endif
303  }
304  return err;
305 }
306 
307 static int hlsenc_io_close(AVFormatContext *s, AVIOContext **pb, char *filename)
308 {
309  HLSContext *hls = s->priv_data;
310  int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
311  int ret = 0;
312  if (!*pb)
313  return ret;
314  if (!http_base_proto || !hls->http_persistent || hls->key_info_file || hls->encrypt) {
315  ff_format_io_close(s, pb);
316 #if CONFIG_HTTP_PROTOCOL
317  } else {
318  URLContext *http_url_context = ffio_geturlcontext(*pb);
319  av_assert0(http_url_context);
320  avio_flush(*pb);
321  ret = ffurl_shutdown(http_url_context, AVIO_FLAG_WRITE);
322 #endif
323  }
324  return ret;
325 }
326 
328 {
329  int http_base_proto = ff_is_http_proto(s->url);
330 
331  if (c->method) {
332  av_dict_set(options, "method", c->method, 0);
333  } else if (http_base_proto) {
334  av_dict_set(options, "method", "PUT", 0);
335  }
336  if (c->user_agent)
337  av_dict_set(options, "user_agent", c->user_agent, 0);
338  if (c->http_persistent)
339  av_dict_set_int(options, "multiple_requests", 1, 0);
340  if (c->timeout >= 0)
341  av_dict_set_int(options, "timeout", c->timeout, 0);
342  if (c->headers)
343  av_dict_set(options, "headers", c->headers, 0);
344 }
345 
347 {
348  int codec_strlen = strlen(vs->codec_attr);
349  char attr[32];
350 
352  return;
354  return;
355 
356  if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
357  uint8_t *data = st->codecpar->extradata;
358  if (data && (data[0] | data[1] | data[2]) == 0 && data[3] == 1 && (data[4] & 0x1F) == 7) {
359  snprintf(attr, sizeof(attr),
360  "avc1.%02x%02x%02x", data[5], data[6], data[7]);
361  } else {
362  goto fail;
363  }
364  } else if (st->codecpar->codec_id == AV_CODEC_ID_HEVC) {
365  uint8_t *data = st->codecpar->extradata;
367  int level = FF_LEVEL_UNKNOWN;
368 
369  if (st->codecpar->profile != FF_PROFILE_UNKNOWN)
370  profile = st->codecpar->profile;
371  if (st->codecpar->level != FF_LEVEL_UNKNOWN)
372  level = st->codecpar->level;
373 
374  /* check the boundary of data which from current position is small than extradata_size */
375  while (data && (data - st->codecpar->extradata + 19) < st->codecpar->extradata_size) {
376  /* get HEVC SPS NAL and seek to profile_tier_level */
377  if (!(data[0] | data[1] | data[2]) && data[3] == 1 && ((data[4] & 0x7E) == 0x42)) {
378  uint8_t *rbsp_buf;
379  int remain_size = 0;
380  int rbsp_size = 0;
381  /* skip start code + nalu header */
382  data += 6;
383  /* process by reference General NAL unit syntax */
384  remain_size = st->codecpar->extradata_size - (data - st->codecpar->extradata);
385  rbsp_buf = ff_nal_unit_extract_rbsp(data, remain_size, &rbsp_size, 0);
386  if (!rbsp_buf)
387  return;
388  if (rbsp_size < 13) {
389  av_freep(&rbsp_buf);
390  break;
391  }
392  /* skip sps_video_parameter_set_id u(4),
393  * sps_max_sub_layers_minus1 u(3),
394  * and sps_temporal_id_nesting_flag u(1) */
395  profile = rbsp_buf[1] & 0x1f;
396  /* skip 8 + 8 + 32 + 4 + 43 + 1 bit */
397  level = rbsp_buf[12];
398  av_freep(&rbsp_buf);
399  break;
400  }
401  data++;
402  }
403  if (st->codecpar->codec_tag == MKTAG('h','v','c','1') &&
405  level != FF_LEVEL_UNKNOWN) {
406  snprintf(attr, sizeof(attr), "%s.%d.4.L%d.B01", av_fourcc2str(st->codecpar->codec_tag), profile, level);
407  } else
408  goto fail;
409  } else if (st->codecpar->codec_id == AV_CODEC_ID_MP2) {
410  snprintf(attr, sizeof(attr), "mp4a.40.33");
411  } else if (st->codecpar->codec_id == AV_CODEC_ID_MP3) {
412  snprintf(attr, sizeof(attr), "mp4a.40.34");
413  } else if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
414  /* TODO : For HE-AAC, HE-AACv2, the last digit needs to be set to 5 and 29 respectively */
415  snprintf(attr, sizeof(attr), "mp4a.40.2");
416  } else if (st->codecpar->codec_id == AV_CODEC_ID_AC3) {
417  snprintf(attr, sizeof(attr), "ac-3");
418  } else if (st->codecpar->codec_id == AV_CODEC_ID_EAC3) {
419  snprintf(attr, sizeof(attr), "ec-3");
420  } else {
421  goto fail;
422  }
423  // Don't write the same attribute multiple times
424  if (!av_stristr(vs->codec_attr, attr)) {
425  snprintf(vs->codec_attr + codec_strlen,
426  sizeof(vs->codec_attr) - codec_strlen,
427  "%s%s", codec_strlen ? "," : "", attr);
428  }
429  return;
430 
431 fail:
432  vs->codec_attr[0] = '\0';
434  return;
435 }
436 
437 static int replace_str_data_in_filename(char **s, const char *filename, char placeholder, const char *datastring)
438 {
439  const char *p;
440  char c;
441  int addchar_count;
442  int found_count = 0;
443  AVBPrint buf;
444  int ret;
445 
447 
448  p = filename;
449  for (;;) {
450  c = *p;
451  if (c == '\0')
452  break;
453  if (c == '%' && *(p+1) == '%') // %%
454  addchar_count = 2;
455  else if (c == '%' && *(p+1) == placeholder) {
456  av_bprintf(&buf, "%s", datastring);
457  p += 2;
458  addchar_count = 0;
459  found_count ++;
460  } else
461  addchar_count = 1;
462 
463  if (addchar_count > 0) {
464  av_bprint_append_data(&buf, p, addchar_count);
465  p += addchar_count;
466  }
467  }
468  if (!av_bprint_is_complete(&buf)) {
469  av_bprint_finalize(&buf, NULL);
470  return AVERROR(ENOMEM);
471  }
472  if ((ret = av_bprint_finalize(&buf, s)) < 0)
473  return ret;
474  return found_count;
475 }
476 
477 static int replace_int_data_in_filename(char **s, const char *filename, char placeholder, int64_t number)
478 {
479  const char *p;
480  char c;
481  int nd, addchar_count;
482  int found_count = 0;
483  AVBPrint buf;
484  int ret;
485 
487 
488  p = filename;
489  for (;;) {
490  c = *p;
491  if (c == '\0')
492  break;
493  if (c == '%' && *(p+1) == '%') // %%
494  addchar_count = 2;
495  else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) {
496  nd = 0;
497  addchar_count = 1;
498  while (av_isdigit(*(p + addchar_count))) {
499  nd = nd * 10 + *(p + addchar_count) - '0';
500  addchar_count++;
501  }
502 
503  if (*(p + addchar_count) == placeholder) {
504  av_bprintf(&buf, "%0*"PRId64, (number < 0) ? nd : nd++, number);
505  p += (addchar_count + 1);
506  addchar_count = 0;
507  found_count++;
508  }
509 
510  } else
511  addchar_count = 1;
512 
513  av_bprint_append_data(&buf, p, addchar_count);
514  p += addchar_count;
515  }
516  if (!av_bprint_is_complete(&buf)) {
517  av_bprint_finalize(&buf, NULL);
518  return AVERROR(ENOMEM);
519  }
520  if ((ret = av_bprint_finalize(&buf, s)) < 0)
521  return ret;
522  return found_count;
523 }
524 
525 static void write_styp(AVIOContext *pb)
526 {
527  avio_wb32(pb, 24);
528  ffio_wfourcc(pb, "styp");
529  ffio_wfourcc(pb, "msdh");
530  avio_wb32(pb, 0); /* minor */
531  ffio_wfourcc(pb, "msdh");
532  ffio_wfourcc(pb, "msix");
533 }
534 
535 static int flush_dynbuf(VariantStream *vs, int *range_length)
536 {
537  AVFormatContext *ctx = vs->avf;
538 
539  if (!ctx->pb) {
540  return AVERROR(EINVAL);
541  }
542 
543  // flush
545 
546  // write out to file
547  *range_length = avio_close_dyn_buf(ctx->pb, &vs->temp_buffer);
548  ctx->pb = NULL;
549  avio_write(vs->out, vs->temp_buffer, *range_length);
550  avio_flush(vs->out);
551 
552  // re-open buffer
553  return avio_open_dyn_buf(&ctx->pb);
554 }
555 
556 static void reflush_dynbuf(VariantStream *vs, int *range_length)
557 {
558  // re-open buffer
559  avio_write(vs->out, vs->temp_buffer, *range_length);
560 }
561 
562 #if HAVE_DOS_PATHS
563 #define SEPARATOR '\\'
564 #else
565 #define SEPARATOR '/'
566 #endif
567 
569  char *path, const char *proto)
570 {
571  if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
572  AVDictionary *opt = NULL;
573  int ret;
574 
575  set_http_options(avf, &opt, hls);
576  av_dict_set(&opt, "method", "DELETE", 0);
577 
578  ret = hlsenc_io_open(avf, &hls->http_delete, path, &opt);
579  av_dict_free(&opt);
580  if (ret < 0)
581  return hls->ignore_io_errors ? 1 : ret;
582 
583  //Nothing to write
584  hlsenc_io_close(avf, &hls->http_delete, path);
585  } else if (unlink(path) < 0) {
586  av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
587  path, strerror(errno));
588  }
589  return 0;
590 }
591 
593  VariantStream *vs)
594 {
595 
596  HLSSegment *segment, *previous_segment = NULL;
597  float playlist_duration = 0.0f;
598  int ret = 0;
599  int segment_cnt = 0;
600  AVBPrint path;
601  const char *dirname = NULL;
602  char *dirname_r = NULL;
603  char *dirname_repl = NULL;
604  const char *vtt_dirname = NULL;
605  char *vtt_dirname_r = NULL;
606  const char *proto = NULL;
607 
609 
610  segment = vs->segments;
611  while (segment) {
612  playlist_duration += segment->duration;
613  segment = segment->next;
614  }
615 
616  segment = vs->old_segments;
617  segment_cnt = 0;
618  while (segment) {
619  playlist_duration -= segment->duration;
620  previous_segment = segment;
621  segment = previous_segment->next;
622  segment_cnt++;
623  if (playlist_duration <= -previous_segment->duration) {
624  previous_segment->next = NULL;
625  break;
626  }
627  if (segment_cnt >= hls->hls_delete_threshold) {
628  previous_segment->next = NULL;
629  break;
630  }
631  }
632 
633  if (segment && !hls->use_localtime_mkdir) {
634  dirname_r = hls->segment_filename ? av_strdup(hls->segment_filename): av_strdup(vs->avf->url);
635  dirname = av_dirname(dirname_r);
636  }
637 
638  /* if %v is present in the file's directory
639  * all segment belongs to the same variant, so do it only once before the loop*/
640  if (dirname && av_stristr(dirname, "%v")) {
641  if (!vs->varname) {
642  if (replace_int_data_in_filename(&dirname_repl, dirname, 'v', segment->var_stream_idx) < 1) {
643  ret = AVERROR(EINVAL);
644  goto fail;
645  }
646  } else {
647  if (replace_str_data_in_filename(&dirname_repl, dirname, 'v', vs->varname) < 1) {
648  ret = AVERROR(EINVAL);
649  goto fail;
650  }
651  }
652 
653  dirname = dirname_repl;
654  }
655 
656  while (segment) {
657  av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n",
658  segment->filename);
659  if (!hls->use_localtime_mkdir) // segment->filename contains basename only
660  av_bprintf(&path, "%s%c", dirname, SEPARATOR);
661  av_bprintf(&path, "%s", segment->filename);
662 
663  if (!av_bprint_is_complete(&path)) {
664  ret = AVERROR(ENOMEM);
665  goto fail;
666  }
667 
668  proto = avio_find_protocol_name(s->url);
669  if (ret = hls_delete_file(hls, s, path.str, proto))
670  goto fail;
671 
672  if ((segment->sub_filename[0] != '\0')) {
673  vtt_dirname_r = av_strdup(vs->vtt_avf->url);
674  vtt_dirname = av_dirname(vtt_dirname_r);
675 
676  av_bprint_clear(&path);
677  av_bprintf(&path, "%s%c%s", vtt_dirname, SEPARATOR,
678  segment->sub_filename);
679  av_freep(&vtt_dirname_r);
680 
681  if (!av_bprint_is_complete(&path)) {
682  ret = AVERROR(ENOMEM);
683  goto fail;
684  }
685 
686  if (ret = hls_delete_file(hls, s, path.str, proto))
687  goto fail;
688  }
689  av_bprint_clear(&path);
690  previous_segment = segment;
691  segment = previous_segment->next;
692  av_freep(&previous_segment);
693  }
694 
695 fail:
696  av_bprint_finalize(&path, NULL);
697  av_freep(&dirname_r);
698  av_freep(&dirname_repl);
699 
700  return ret;
701 }
702 
703 static int randomize(uint8_t *buf, int len)
704 {
705 #if CONFIG_GCRYPT
706  gcry_randomize(buf, len, GCRY_VERY_STRONG_RANDOM);
707  return 0;
708 #elif CONFIG_OPENSSL
709  if (RAND_bytes(buf, len))
710  return 0;
711 #else
712  return AVERROR(ENOSYS);
713 #endif
714  return AVERROR(EINVAL);
715 }
716 
718 {
719  HLSContext *hls = s->priv_data;
720  int ret;
721  int len;
722  AVIOContext *pb;
723  uint8_t key[KEYSIZE];
724  char * key_basename_source = (hls->master_m3u8_url) ? hls->master_m3u8_url : s->url;
725 
726  len = strlen(key_basename_source) + 4 + 1;
727  hls->key_basename = av_mallocz(len);
728  if (!hls->key_basename)
729  return AVERROR(ENOMEM);
730 
731  av_strlcpy(hls->key_basename, key_basename_source, len);
732  av_strlcat(hls->key_basename, ".key", len);
733 
734  if (hls->key_url) {
735  av_strlcpy(hls->key_file, hls->key_url, sizeof(hls->key_file));
736  av_strlcpy(hls->key_uri, hls->key_url, sizeof(hls->key_uri));
737  } else {
738  av_strlcpy(hls->key_file, hls->key_basename, sizeof(hls->key_file));
739  av_strlcpy(hls->key_uri, hls->key_basename, sizeof(hls->key_uri));
740  }
741 
742  if (!*hls->iv_string) {
743  uint8_t iv[16] = { 0 };
744  char buf[33];
745 
746  if (!hls->iv) {
747  AV_WB64(iv + 8, vs->sequence);
748  } else {
749  memcpy(iv, hls->iv, sizeof(iv));
750  }
751  ff_data_to_hex(buf, iv, sizeof(iv), 0);
752  memcpy(hls->iv_string, buf, sizeof(hls->iv_string));
753  }
754 
755  if (!*hls->key_uri) {
756  av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
757  return AVERROR(EINVAL);
758  }
759 
760  if (!*hls->key_file) {
761  av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
762  return AVERROR(EINVAL);
763  }
764 
765  if (!*hls->key_string) {
767  if (!hls->key) {
768  if ((ret = randomize(key, sizeof(key))) < 0) {
769  av_log(s, AV_LOG_ERROR, "Cannot generate a strong random key\n");
770  return ret;
771  }
772  } else {
773  memcpy(key, hls->key, sizeof(key));
774  }
775 
776  ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
777  set_http_options(s, &options, hls);
778  ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_WRITE, &options);
780  if (ret < 0)
781  return ret;
782  avio_seek(pb, 0, SEEK_CUR);
783  avio_write(pb, key, KEYSIZE);
784  avio_close(pb);
785  }
786  return 0;
787 }
788 
789 
791 {
792  HLSContext *hls = s->priv_data;
793  int ret;
794  AVIOContext *pb;
795  uint8_t key[KEYSIZE];
797 
798  set_http_options(s, &options, hls);
799  ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, &options);
801  if (ret < 0) {
802  av_log(hls, AV_LOG_ERROR,
803  "error opening key info file %s\n", hls->key_info_file);
804  return ret;
805  }
806 
807  ff_get_line(pb, vs->key_uri, sizeof(vs->key_uri));
808  vs->key_uri[strcspn(vs->key_uri, "\r\n")] = '\0';
809 
810  ff_get_line(pb, vs->key_file, sizeof(vs->key_file));
811  vs->key_file[strcspn(vs->key_file, "\r\n")] = '\0';
812 
813  ff_get_line(pb, vs->iv_string, sizeof(vs->iv_string));
814  vs->iv_string[strcspn(vs->iv_string, "\r\n")] = '\0';
815 
816  ff_format_io_close(s, &pb);
817 
818  if (!*vs->key_uri) {
819  av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
820  return AVERROR(EINVAL);
821  }
822 
823  if (!*vs->key_file) {
824  av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
825  return AVERROR(EINVAL);
826  }
827 
828  set_http_options(s, &options, hls);
829  ret = s->io_open(s, &pb, vs->key_file, AVIO_FLAG_READ, &options);
831  if (ret < 0) {
832  av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", vs->key_file);
833  return ret;
834  }
835 
836  ret = avio_read(pb, key, sizeof(key));
837  ff_format_io_close(s, &pb);
838  if (ret != sizeof(key)) {
839  av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", vs->key_file);
840  if (ret >= 0 || ret == AVERROR_EOF)
841  ret = AVERROR(EINVAL);
842  return ret;
843  }
844  ff_data_to_hex(vs->key_string, key, sizeof(key), 0);
845 
846  return 0;
847 }
848 
850 {
852  HLSContext *hls = s->priv_data;
853  AVFormatContext *oc;
854  AVFormatContext *vtt_oc = NULL;
855  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
856  int remaining_options;
857  int i, ret;
858 
860  if (ret < 0)
861  return ret;
862  oc = vs->avf;
863 
864  oc->url = av_strdup("");
865  if (!oc->url)
866  return AVERROR(ENOMEM);
867 
868  oc->interrupt_callback = s->interrupt_callback;
869  oc->max_delay = s->max_delay;
870  oc->opaque = s->opaque;
871  oc->io_open = s->io_open;
872 #if FF_API_AVFORMAT_IO_CLOSE
874  oc->io_close = s->io_close;
876 #endif
877  oc->io_close2 = s->io_close2;
878  oc->strict_std_compliance = s->strict_std_compliance;
879  av_dict_copy(&oc->metadata, s->metadata, 0);
880 
881  if (vs->vtt_oformat) {
883  if (ret < 0)
884  return ret;
885  vtt_oc = vs->vtt_avf;
886  av_dict_copy(&vtt_oc->metadata, s->metadata, 0);
887  }
888 
889  for (i = 0; i < vs->nb_streams; i++) {
890  AVStream *st;
891  AVFormatContext *loc;
893  loc = vtt_oc;
894  else
895  loc = oc;
896 
897  if (!(st = avformat_new_stream(loc, NULL)))
898  return AVERROR(ENOMEM);
900  if (!oc->oformat->codec_tag ||
904  } else {
905  st->codecpar->codec_tag = 0;
906  }
907 
909  st->time_base = vs->streams[i]->time_base;
910  av_dict_copy(&st->metadata, vs->streams[i]->metadata, 0);
911  st->id = vs->streams[i]->id;
912  }
913 
914  vs->start_pos = 0;
915  vs->new_start = 1;
916 
917  if (hls->segment_type == SEGMENT_TYPE_FMP4 && hls->max_seg_size > 0) {
918  if (hls->http_persistent > 0) {
919  //TODO: Support fragment fmp4 for http persistent in HLS muxer.
920  av_log(s, AV_LOG_WARNING, "http persistent mode is currently unsupported for fragment mp4 in the HLS muxer.\n");
921  }
922  if (hls->max_seg_size > 0) {
923  av_log(s, AV_LOG_WARNING, "Multi-file byterange mode is currently unsupported in the HLS muxer.\n");
924  return AVERROR_PATCHWELCOME;
925  }
926  }
927 
928  if ((ret = avio_open_dyn_buf(&oc->pb)) < 0)
929  return ret;
930 
931  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
932  set_http_options(s, &options, hls);
933  if (byterange_mode) {
934  ret = hlsenc_io_open(s, &vs->out, vs->basename, &options);
935  } else {
937  }
939  }
940  if (ret < 0) {
941  av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", vs->fmp4_init_filename);
942  return ret;
943  }
944 
946  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
947  av_dict_set(&options, "fflags", "-autobsf", 0);
948  av_dict_set(&options, "movflags", "+frag_custom+dash+delay_moov", AV_DICT_APPEND);
949  } else {
950  /* We only require one PAT/PMT per segment. */
951  char period[21];
952  snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1);
955  }
957  remaining_options = av_dict_count(options);
959  if (ret < 0)
960  return ret;
961  if (remaining_options) {
962  av_log(s, AV_LOG_ERROR, "Some of the provided format options are not recognized\n");
963  return AVERROR(EINVAL);
964  }
965  avio_flush(oc->pb);
966  return 0;
967 }
968 
969 static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename)
970 {
971  while (segment) {
972  if (!av_strcasecmp(segment->filename,filename))
973  return segment;
974  segment = segment->next;
975  }
976  return (HLSSegment *) NULL;
977 }
978 
980  VariantStream *vs, HLSSegment *en,
981  double duration, int64_t pos, int64_t size)
982 {
985  char * new_url = av_strdup(vs->current_segment_final_filename_fmt);
986  if (!new_url) {
987  return AVERROR(ENOMEM);
988  }
989  ff_format_set_url(vs->avf, new_url);
991  char *filename = NULL;
992  if (replace_int_data_in_filename(&filename, vs->avf->url, 's', pos + size) < 1) {
993  av_log(hls, AV_LOG_ERROR,
994  "Invalid second level segment filename template '%s', "
995  "you can try to remove second_level_segment_size flag\n",
996  vs->avf->url);
997  av_freep(&filename);
998  return AVERROR(EINVAL);
999  }
1000  ff_format_set_url(vs->avf, filename);
1001  }
1003  char *filename = NULL;
1004  if (replace_int_data_in_filename(&filename, vs->avf->url,
1005  't', (int64_t)round(duration * HLS_MICROSECOND_UNIT)) < 1) {
1006  av_log(hls, AV_LOG_ERROR,
1007  "Invalid second level segment filename template '%s', "
1008  "you can try to remove second_level_segment_time flag\n",
1009  vs->avf->url);
1010  av_freep(&filename);
1011  return AVERROR(EINVAL);
1012  }
1013  ff_format_set_url(vs->avf, filename);
1014  }
1015  }
1016  return 0;
1017 }
1018 
1020 {
1021  int ret = 0;
1022 
1024  av_log(hls, AV_LOG_ERROR,
1025  "second_level_segment_duration hls_flag requires strftime to be true\n");
1026  ret = AVERROR(EINVAL);
1027  }
1028  if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
1029  av_log(hls, AV_LOG_ERROR,
1030  "second_level_segment_size hls_flag requires strfime to be true\n");
1031  ret = AVERROR(EINVAL);
1032  }
1034  av_log(hls, AV_LOG_ERROR,
1035  "second_level_segment_index hls_flag requires strftime to be true\n");
1036  ret = AVERROR(EINVAL);
1037  }
1038 
1039  return ret;
1040 }
1041 
1043 {
1044  const char *proto = avio_find_protocol_name(vs->basename);
1045  int segment_renaming_ok = proto && !strcmp(proto, "file");
1046  int ret = 0;
1047 
1048  if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) {
1049  av_log(hls, AV_LOG_ERROR,
1050  "second_level_segment_duration hls_flag works only with file protocol segment names\n");
1051  ret = AVERROR(EINVAL);
1052  }
1053  if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) {
1054  av_log(hls, AV_LOG_ERROR,
1055  "second_level_segment_size hls_flag works only with file protocol segment names\n");
1056  ret = AVERROR(EINVAL);
1057  }
1058 
1059  return ret;
1060 }
1061 
1062 static void sls_flag_file_rename(HLSContext *hls, VariantStream *vs, char *old_filename) {
1064  strlen(vs->current_segment_final_filename_fmt)) {
1065  ff_rename(old_filename, vs->avf->url, hls);
1066  }
1067 }
1068 
1070 {
1071  if (c->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
1072  char *filename = NULL;
1073  if (replace_int_data_in_filename(&filename,
1074  oc->url, 'd', vs->sequence) < 1) {
1075  av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
1076  "you can try to remove second_level_segment_index flag\n",
1077  oc->url);
1078  av_freep(&filename);
1079  return AVERROR(EINVAL);
1080  }
1081  ff_format_set_url(oc, filename);
1082  }
1086  if (c->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
1087  char *filename = NULL;
1088  if (replace_int_data_in_filename(&filename, oc->url, 's', 0) < 1) {
1089  av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
1090  "you can try to remove second_level_segment_size flag\n",
1091  oc->url);
1092  av_freep(&filename);
1093  return AVERROR(EINVAL);
1094  }
1095  ff_format_set_url(oc, filename);
1096  }
1097  if (c->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
1098  char *filename = NULL;
1099  if (replace_int_data_in_filename(&filename, oc->url, 't', 0) < 1) {
1100  av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
1101  "you can try to remove second_level_segment_time flag\n",
1102  oc->url);
1103  av_freep(&filename);
1104  return AVERROR(EINVAL);
1105  }
1106  ff_format_set_url(oc, filename);
1107  }
1108  }
1109  return 0;
1110 }
1111 
1112 /* Create a new segment and append it to the segment list */
1114  VariantStream *vs, double duration, int64_t pos,
1115  int64_t size)
1116 {
1117  HLSSegment *en = av_malloc(sizeof(*en));
1118  const char *filename;
1119  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1120  int ret;
1121 
1122  if (!en)
1123  return AVERROR(ENOMEM);
1124 
1125  en->var_stream_idx = vs->var_stream_idx;
1126  ret = sls_flags_filename_process(s, hls, vs, en, duration, pos, size);
1127  if (ret < 0) {
1128  av_freep(&en);
1129  return ret;
1130  }
1131 
1132  filename = av_basename(vs->avf->url);
1133 
1134  if (hls->use_localtime_mkdir) {
1135  filename = vs->avf->url;
1136  }
1137  if ((find_segment_by_filename(vs->segments, filename) || find_segment_by_filename(vs->old_segments, filename))
1138  && !byterange_mode) {
1139  av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename);
1140  }
1141  av_strlcpy(en->filename, filename, sizeof(en->filename));
1142 
1143  if (vs->has_subtitle)
1144  av_strlcpy(en->sub_filename, av_basename(vs->vtt_avf->url), sizeof(en->sub_filename));
1145  else
1146  en->sub_filename[0] = '\0';
1147 
1148  en->duration = duration;
1149  en->pos = pos;
1150  en->size = size;
1151  en->keyframe_pos = vs->video_keyframe_pos;
1153  en->next = NULL;
1154  en->discont = 0;
1155  en->discont_program_date_time = 0;
1156 
1157  if (vs->discontinuity) {
1158  en->discont = 1;
1159  vs->discontinuity = 0;
1160  }
1161 
1162  if (hls->key_info_file || hls->encrypt) {
1163  av_strlcpy(en->key_uri, vs->key_uri, sizeof(en->key_uri));
1164  av_strlcpy(en->iv_string, vs->iv_string, sizeof(en->iv_string));
1165  }
1166 
1167  if (!vs->segments)
1168  vs->segments = en;
1169  else
1170  vs->last_segment->next = en;
1171 
1172  vs->last_segment = en;
1173 
1174  // EVENT or VOD playlists imply sliding window cannot be used
1175  if (hls->pl_type != PLAYLIST_TYPE_NONE)
1176  hls->max_nb_segments = 0;
1177 
1178  if (hls->max_nb_segments && vs->nb_entries >= hls->max_nb_segments) {
1179  en = vs->segments;
1181  vs->initial_prog_date_time += en->duration;
1182  vs->segments = en->next;
1183  if (en && hls->flags & HLS_DELETE_SEGMENTS &&
1184  !(hls->flags & HLS_SINGLE_FILE)) {
1185  en->next = vs->old_segments;
1186  vs->old_segments = en;
1187  if ((ret = hls_delete_old_segments(s, hls, vs)) < 0)
1188  return ret;
1189  } else
1190  av_freep(&en);
1191  } else
1192  vs->nb_entries++;
1193 
1194  if (hls->max_seg_size > 0) {
1195  return 0;
1196  }
1197  vs->sequence++;
1198 
1199  return 0;
1200 }
1201 
1202 static int parse_playlist(AVFormatContext *s, const char *url, VariantStream *vs)
1203 {
1204  HLSContext *hls = s->priv_data;
1205  AVIOContext *in;
1206  int ret = 0, is_segment = 0;
1207  int64_t new_start_pos;
1208  char line[MAX_URL_SIZE];
1209  const char *ptr;
1210  const char *end;
1211  double discont_program_date_time = 0;
1212 
1213  if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ,
1214  &s->interrupt_callback, NULL,
1215  s->protocol_whitelist, s->protocol_blacklist)) < 0)
1216  return ret;
1217 
1218  ff_get_chomp_line(in, line, sizeof(line));
1219  if (strcmp(line, "#EXTM3U")) {
1221  goto fail;
1222  }
1223 
1224  vs->discontinuity = 0;
1225  while (!avio_feof(in)) {
1226  ff_get_chomp_line(in, line, sizeof(line));
1227  if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
1228  int64_t tmp_sequence = strtoll(ptr, NULL, 10);
1229  if (tmp_sequence < vs->sequence)
1230  av_log(hls, AV_LOG_VERBOSE,
1231  "Found playlist sequence number was smaller """
1232  "than specified start sequence number: %"PRId64" < %"PRId64", "
1233  "omitting\n", tmp_sequence, hls->start_sequence);
1234  else {
1235  av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence);
1236  vs->sequence = tmp_sequence;
1237  }
1238  } else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) {
1239  is_segment = 1;
1240  vs->discontinuity = 1;
1241  } else if (av_strstart(line, "#EXTINF:", &ptr)) {
1242  is_segment = 1;
1243  vs->duration = atof(ptr);
1244  } else if (av_stristart(line, "#EXT-X-KEY:", &ptr)) {
1245  ptr = av_stristr(line, "URI=\"");
1246  if (ptr) {
1247  ptr += strlen("URI=\"");
1248  end = av_stristr(ptr, ",");
1249  if (end) {
1250  av_strlcpy(vs->key_uri, ptr, end - ptr);
1251  } else {
1252  av_strlcpy(vs->key_uri, ptr, sizeof(vs->key_uri));
1253  }
1254  }
1255 
1256  ptr = av_stristr(line, "IV=0x");
1257  if (ptr) {
1258  ptr += strlen("IV=0x");
1259  end = av_stristr(ptr, ",");
1260  if (end) {
1261  av_strlcpy(vs->iv_string, ptr, end - ptr);
1262  } else {
1263  av_strlcpy(vs->iv_string, ptr, sizeof(vs->iv_string));
1264  }
1265  }
1266  } else if (av_strstart(line, "#EXT-X-PROGRAM-DATE-TIME:", &ptr)) {
1267  struct tm program_date_time;
1268  int y,M,d,h,m,s;
1269  double ms;
1270  if (sscanf(ptr, "%d-%d-%dT%d:%d:%d.%lf", &y, &M, &d, &h, &m, &s, &ms) != 7) {
1272  goto fail;
1273  }
1274 
1275  program_date_time.tm_year = y - 1900;
1276  program_date_time.tm_mon = M - 1;
1277  program_date_time.tm_mday = d;
1278  program_date_time.tm_hour = h;
1279  program_date_time.tm_min = m;
1280  program_date_time.tm_sec = s;
1281  program_date_time.tm_isdst = -1;
1282 
1283  discont_program_date_time = mktime(&program_date_time);
1284  discont_program_date_time += (double)(ms / 1000);
1285  } else if (av_strstart(line, "#", NULL)) {
1286  continue;
1287  } else if (line[0]) {
1288  if (is_segment) {
1289  char *new_file = av_strdup(line);
1290  if (!new_file) {
1291  ret = AVERROR(ENOMEM);
1292  goto fail;
1293  }
1294  ff_format_set_url(vs->avf, new_file);
1295  is_segment = 0;
1296  new_start_pos = avio_tell(vs->avf->pb);
1297  vs->size = new_start_pos - vs->start_pos;
1298  ret = hls_append_segment(s, hls, vs, vs->duration, vs->start_pos, vs->size);
1299  if (discont_program_date_time) {
1300  vs->last_segment->discont_program_date_time = discont_program_date_time;
1301  discont_program_date_time += vs->duration;
1302  }
1303  if (ret < 0)
1304  goto fail;
1305  vs->start_pos = new_start_pos;
1306  }
1307  }
1308  }
1309 
1310 fail:
1311  avio_close(in);
1312  return ret;
1313 }
1314 
1316 {
1317  HLSSegment *en;
1318 
1319  while (p) {
1320  en = p;
1321  p = p->next;
1322  av_freep(&en);
1323  }
1324 }
1325 
1327 {
1328  size_t len = strlen(oc->url);
1329  char *final_filename = av_strdup(oc->url);
1330  int ret;
1331 
1332  if (!final_filename)
1333  return AVERROR(ENOMEM);
1334  final_filename[len-4] = '\0';
1335  ret = ff_rename(oc->url, final_filename, s);
1336  oc->url[len-4] = '\0';
1337  av_freep(&final_filename);
1338  return ret;
1339 }
1340 
1341 static const char* get_relative_url(const char *master_url, const char *media_url)
1342 {
1343  const char *p = strrchr(master_url, '/');
1344  size_t base_len = 0;
1345 
1346  if (!p) p = strrchr(master_url, '\\');
1347 
1348  if (p) {
1349  base_len = p - master_url;
1350  if (av_strncasecmp(master_url, media_url, base_len)) {
1351  av_log(NULL, AV_LOG_WARNING, "Unable to find relative url\n");
1352  return NULL;
1353  }
1354  } else {
1355  return media_url;
1356  }
1357 
1358  return media_url + base_len + 1;
1359 }
1360 
1361 static int64_t get_stream_bit_rate(AVStream *stream)
1362 {
1364  stream,
1366  NULL
1367  );
1368 
1369  if (stream->codecpar->bit_rate)
1370  return stream->codecpar->bit_rate;
1371  else if (props)
1372  return props->max_bitrate;
1373 
1374  return 0;
1375 }
1376 
1378  VariantStream * const input_vs)
1379 {
1380  HLSContext *hls = s->priv_data;
1381  VariantStream *vs, *temp_vs;
1382  AVStream *vid_st, *aud_st;
1384  unsigned int i, j;
1385  int ret, bandwidth;
1386  const char *m3u8_rel_name = NULL;
1387  const char *vtt_m3u8_rel_name = NULL;
1388  const char *ccgroup;
1389  const char *sgroup = NULL;
1390  ClosedCaptionsStream *ccs;
1391  const char *proto = avio_find_protocol_name(hls->master_m3u8_url);
1392  int is_file_proto = proto && !strcmp(proto, "file");
1393  int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || hls->master_publish_rate);
1394  char temp_filename[MAX_URL_SIZE];
1395 
1396  input_vs->m3u8_created = 1;
1397  if (!hls->master_m3u8_created) {
1398  /* For the first time, wait until all the media playlists are created */
1399  for (i = 0; i < hls->nb_varstreams; i++)
1400  if (!hls->var_streams[i].m3u8_created)
1401  return 0;
1402  } else {
1403  /* Keep publishing the master playlist at the configured rate */
1404  if (&hls->var_streams[0] != input_vs || !hls->master_publish_rate ||
1405  input_vs->number % hls->master_publish_rate)
1406  return 0;
1407  }
1408 
1409  set_http_options(s, &options, hls);
1410  snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", hls->master_m3u8_url);
1411  ret = hlsenc_io_open(s, &hls->m3u8_out, temp_filename, &options);
1413  if (ret < 0) {
1414  av_log(s, AV_LOG_ERROR, "Failed to open master play list file '%s'\n",
1415  temp_filename);
1416  goto fail;
1417  }
1418 
1420 
1421  for (i = 0; i < hls->nb_ccstreams; i++) {
1422  ccs = &(hls->cc_streams[i]);
1423  avio_printf(hls->m3u8_out, "#EXT-X-MEDIA:TYPE=CLOSED-CAPTIONS");
1424  avio_printf(hls->m3u8_out, ",GROUP-ID=\"%s\"", ccs->ccgroup);
1425  avio_printf(hls->m3u8_out, ",NAME=\"%s\"", ccs->instreamid);
1426  if (ccs->language)
1427  avio_printf(hls->m3u8_out, ",LANGUAGE=\"%s\"", ccs->language);
1428  avio_printf(hls->m3u8_out, ",INSTREAM-ID=\"%s\"\n", ccs->instreamid);
1429  }
1430 
1431  /* For audio only variant streams add #EXT-X-MEDIA tag with attributes*/
1432  for (i = 0; i < hls->nb_varstreams; i++) {
1433  vs = &(hls->var_streams[i]);
1434 
1435  if (vs->has_video || vs->has_subtitle || !vs->agroup)
1436  continue;
1437 
1438  m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
1439  if (!m3u8_rel_name) {
1440  av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
1441  goto fail;
1442  }
1443 
1444  ff_hls_write_audio_rendition(hls->m3u8_out, vs->agroup, m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
1445  }
1446 
1447  /* For variant streams with video add #EXT-X-STREAM-INF tag with attributes*/
1448  for (i = 0; i < hls->nb_varstreams; i++) {
1449  vs = &(hls->var_streams[i]);
1450 
1451  m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
1452  if (!m3u8_rel_name) {
1453  av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
1454  goto fail;
1455  }
1456 
1457  vid_st = NULL;
1458  aud_st = NULL;
1459  for (j = 0; j < vs->nb_streams; j++) {
1461  vid_st = vs->streams[j];
1462  else if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
1463  aud_st = vs->streams[j];
1464  }
1465 
1466  if (!vid_st && !aud_st) {
1467  av_log(s, AV_LOG_WARNING, "Media stream not found\n");
1468  continue;
1469  }
1470 
1471  /**
1472  * Traverse through the list of audio only rendition streams and find
1473  * the rendition which has highest bitrate in the same audio group
1474  */
1475  if (vs->agroup) {
1476  for (j = 0; j < hls->nb_varstreams; j++) {
1477  temp_vs = &(hls->var_streams[j]);
1478  if (!temp_vs->has_video && !temp_vs->has_subtitle &&
1479  temp_vs->agroup &&
1480  !av_strcasecmp(temp_vs->agroup, vs->agroup)) {
1481  if (!aud_st)
1482  aud_st = temp_vs->streams[0];
1483  if (temp_vs->streams[0]->codecpar->bit_rate >
1484  aud_st->codecpar->bit_rate)
1485  aud_st = temp_vs->streams[0];
1486  }
1487  }
1488  }
1489 
1490  bandwidth = 0;
1491  if (vid_st)
1492  bandwidth += get_stream_bit_rate(vid_st);
1493  if (aud_st)
1494  bandwidth += get_stream_bit_rate(aud_st);
1495  bandwidth += bandwidth / 10;
1496 
1497  ccgroup = NULL;
1498  if (vid_st && vs->ccgroup) {
1499  /* check if this group name is available in the cc map string */
1500  for (j = 0; j < hls->nb_ccstreams; j++) {
1501  ccs = &(hls->cc_streams[j]);
1502  if (!av_strcasecmp(ccs->ccgroup, vs->ccgroup)) {
1503  ccgroup = vs->ccgroup;
1504  break;
1505  }
1506  }
1507  if (j == hls->nb_ccstreams)
1508  av_log(s, AV_LOG_WARNING, "mapping ccgroup %s not found\n",
1509  vs->ccgroup);
1510  }
1511 
1512  if (vid_st && vs->sgroup) {
1513  sgroup = vs->sgroup;
1514  vtt_m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->vtt_m3u8_name);
1515  if (!vtt_m3u8_rel_name) {
1516  av_log(s, AV_LOG_WARNING, "Unable to find relative subtitle URL\n");
1517  break;
1518  }
1519 
1520  ff_hls_write_subtitle_rendition(hls->m3u8_out, sgroup, vtt_m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
1521  }
1522 
1523  if (!hls->has_default_key || !hls->has_video_m3u8) {
1524  ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
1525  aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup);
1526  } else {
1527  if (vid_st) {
1528  ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
1529  aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup);
1530  }
1531  }
1532  }
1533 fail:
1534  if (ret >=0)
1535  hls->master_m3u8_created = 1;
1536  hlsenc_io_close(s, &hls->m3u8_out, temp_filename);
1537  if (use_temp_file)
1538  ff_rename(temp_filename, hls->master_m3u8_url, s);
1539 
1540  return ret;
1541 }
1542 
1543 static int hls_window(AVFormatContext *s, int last, VariantStream *vs)
1544 {
1545  HLSContext *hls = s->priv_data;
1546  HLSSegment *en;
1547  int target_duration = 0;
1548  int ret = 0;
1549  char temp_filename[MAX_URL_SIZE];
1550  char temp_vtt_filename[MAX_URL_SIZE];
1551  int64_t sequence = FFMAX(hls->start_sequence, vs->sequence - vs->nb_entries);
1552  const char *proto = avio_find_protocol_name(vs->m3u8_name);
1553  int is_file_proto = proto && !strcmp(proto, "file");
1554  int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || !(hls->pl_type == PLAYLIST_TYPE_VOD));
1555  static unsigned warned_non_file;
1556  char *key_uri = NULL;
1557  char *iv_string = NULL;
1559  double prog_date_time = vs->initial_prog_date_time;
1560  double *prog_date_time_p = (hls->flags & HLS_PROGRAM_DATE_TIME) ? &prog_date_time : NULL;
1561  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1562 
1563  hls->version = 2;
1564  if (!(hls->flags & HLS_ROUND_DURATIONS)) {
1565  hls->version = 3;
1566  }
1567 
1568  if (byterange_mode) {
1569  hls->version = 4;
1570  sequence = 0;
1571  }
1572 
1573  if (hls->flags & HLS_I_FRAMES_ONLY) {
1574  hls->version = 4;
1575  }
1576 
1577  if (hls->flags & HLS_INDEPENDENT_SEGMENTS) {
1578  hls->version = 6;
1579  }
1580 
1581  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1582  hls->version = 7;
1583  }
1584 
1585  if (!is_file_proto && (hls->flags & HLS_TEMP_FILE) && !warned_non_file++)
1586  av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
1587 
1588  set_http_options(s, &options, hls);
1589  snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", vs->m3u8_name);
1590  if ((ret = hlsenc_io_open(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename, &options)) < 0) {
1591  if (hls->ignore_io_errors)
1592  ret = 0;
1593  goto fail;
1594  }
1595 
1596  for (en = vs->segments; en; en = en->next) {
1597  if (target_duration <= en->duration)
1598  target_duration = lrint(en->duration);
1599  }
1600 
1601  vs->discontinuity_set = 0;
1602  ff_hls_write_playlist_header(byterange_mode ? hls->m3u8_out : vs->out, hls->version, hls->allowcache,
1603  target_duration, sequence, hls->pl_type, hls->flags & HLS_I_FRAMES_ONLY);
1604 
1605  if ((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && vs->discontinuity_set==0) {
1606  avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-DISCONTINUITY\n");
1607  vs->discontinuity_set = 1;
1608  }
1609  if (vs->has_video && (hls->flags & HLS_INDEPENDENT_SEGMENTS)) {
1610  avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-INDEPENDENT-SEGMENTS\n");
1611  }
1612  for (en = vs->segments; en; en = en->next) {
1613  if ((hls->encrypt || hls->key_info_file) && (!key_uri || strcmp(en->key_uri, key_uri) ||
1614  av_strcasecmp(en->iv_string, iv_string))) {
1615  avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri);
1616  if (*en->iv_string)
1617  avio_printf(byterange_mode ? hls->m3u8_out : vs->out, ",IV=0x%s", en->iv_string);
1618  avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "\n");
1619  key_uri = en->key_uri;
1620  iv_string = en->iv_string;
1621  }
1622 
1623  if ((hls->segment_type == SEGMENT_TYPE_FMP4) && (en == vs->segments)) {
1624  ff_hls_write_init_file(byterange_mode ? hls->m3u8_out : vs->out, (hls->flags & HLS_SINGLE_FILE) ? en->filename : vs->fmp4_init_filename,
1625  hls->flags & HLS_SINGLE_FILE, vs->init_range_length, 0);
1626  }
1627 
1628  ret = ff_hls_write_file_entry(byterange_mode ? hls->m3u8_out : vs->out, en->discont, byterange_mode,
1629  en->duration, hls->flags & HLS_ROUND_DURATIONS,
1630  en->size, en->pos, hls->baseurl,
1631  en->filename,
1632  en->discont_program_date_time ? &en->discont_program_date_time : prog_date_time_p,
1634  if (en->discont_program_date_time)
1636  if (ret < 0) {
1637  av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
1638  }
1639  }
1640 
1641  if (last && (hls->flags & HLS_OMIT_ENDLIST)==0)
1642  ff_hls_write_end_list(byterange_mode ? hls->m3u8_out : vs->out);
1643 
1644  if (vs->vtt_m3u8_name) {
1645  snprintf(temp_vtt_filename, sizeof(temp_vtt_filename), use_temp_file ? "%s.tmp" : "%s", vs->vtt_m3u8_name);
1646  if ((ret = hlsenc_io_open(s, &hls->sub_m3u8_out, temp_vtt_filename, &options)) < 0) {
1647  if (hls->ignore_io_errors)
1648  ret = 0;
1649  goto fail;
1650  }
1652  target_duration, sequence, PLAYLIST_TYPE_NONE, 0);
1653  for (en = vs->segments; en; en = en->next) {
1654  ret = ff_hls_write_file_entry(hls->sub_m3u8_out, 0, byterange_mode,
1655  en->duration, 0, en->size, en->pos,
1656  hls->baseurl, en->sub_filename, NULL, 0, 0, 0);
1657  if (ret < 0) {
1658  av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
1659  }
1660  }
1661 
1662  if (last)
1664 
1665  }
1666 
1667 fail:
1669  ret = hlsenc_io_close(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename);
1670  if (ret < 0) {
1671  return ret;
1672  }
1674  if (use_temp_file) {
1675  ff_rename(temp_filename, vs->m3u8_name, s);
1676  if (vs->vtt_m3u8_name)
1677  ff_rename(temp_vtt_filename, vs->vtt_m3u8_name, s);
1678  }
1679  if (ret >= 0 && hls->master_pl_name)
1680  if (create_master_playlist(s, vs) < 0)
1681  av_log(s, AV_LOG_WARNING, "Master playlist creation failed\n");
1682 
1683  return ret;
1684 }
1685 
1687 {
1688  HLSContext *c = s->priv_data;
1689  AVFormatContext *oc = vs->avf;
1690  AVFormatContext *vtt_oc = vs->vtt_avf;
1692  const char *proto = NULL;
1693  int use_temp_file = 0;
1694  char iv_string[KEYSIZE*2 + 1];
1695  int err = 0;
1696 
1697  if (c->flags & HLS_SINGLE_FILE) {
1698  char *new_name = av_strdup(vs->basename);
1699  if (!new_name)
1700  return AVERROR(ENOMEM);
1701  ff_format_set_url(oc, new_name);
1702  if (vs->vtt_basename) {
1703  new_name = av_strdup(vs->vtt_basename);
1704  if (!new_name)
1705  return AVERROR(ENOMEM);
1706  ff_format_set_url(vtt_oc, new_name);
1707  }
1708  } else if (c->max_seg_size > 0) {
1709  char *filename = NULL;
1710  if (replace_int_data_in_filename(&filename,
1711  vs->basename, 'd', vs->sequence) < 1) {
1712  av_freep(&filename);
1713  av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -strftime 1 with it\n", vs->basename);
1714  return AVERROR(EINVAL);
1715  }
1716  ff_format_set_url(oc, filename);
1717  } else {
1718  if (c->use_localtime) {
1719  int r;
1720  char *expanded = NULL;
1721 
1722  r = strftime_expand(vs->basename, &expanded);
1723  if (r < 0) {
1724  av_log(oc, AV_LOG_ERROR, "Could not get segment filename with strftime\n");
1725  return r;
1726  }
1727  ff_format_set_url(oc, expanded);
1728 
1729  err = sls_flag_use_localtime_filename(oc, c, vs);
1730  if (err < 0) {
1731  return AVERROR(ENOMEM);
1732  }
1733 
1734  if (c->use_localtime_mkdir) {
1735  const char *dir;
1736  char *fn_copy = av_strdup(oc->url);
1737  if (!fn_copy)
1738  return AVERROR(ENOMEM);
1739  dir = av_dirname(fn_copy);
1740  if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
1741  av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir);
1742  av_freep(&fn_copy);
1743  return AVERROR(errno);
1744  }
1745  av_freep(&fn_copy);
1746  }
1747  } else {
1748  char *filename = NULL;
1749  if (replace_int_data_in_filename(&filename,
1750  vs->basename, 'd', vs->sequence) < 1) {
1751  av_freep(&filename);
1752  av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -strftime 1 with it\n", vs->basename);
1753  return AVERROR(EINVAL);
1754  }
1755  ff_format_set_url(oc, filename);
1756  }
1757  if (vs->vtt_basename) {
1758  char *filename = NULL;
1759  if (replace_int_data_in_filename(&filename,
1760  vs->vtt_basename, 'd', vs->sequence) < 1) {
1761  av_freep(&filename);
1762  av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", vs->vtt_basename);
1763  return AVERROR(EINVAL);
1764  }
1765  ff_format_set_url(vtt_oc, filename);
1766  }
1767  }
1768 
1769  proto = avio_find_protocol_name(oc->url);
1770  use_temp_file = proto && !strcmp(proto, "file") && (c->flags & HLS_TEMP_FILE);
1771 
1772  if (use_temp_file) {
1773  char *new_name = av_asprintf("%s.tmp", oc->url);
1774  if (!new_name)
1775  return AVERROR(ENOMEM);
1776  ff_format_set_url(oc, new_name);
1777  }
1778 
1779  if (c->key_info_file || c->encrypt) {
1780  if (c->segment_type == SEGMENT_TYPE_FMP4) {
1781  av_log(s, AV_LOG_ERROR, "Encrypted fmp4 not yet supported\n");
1782  return AVERROR_PATCHWELCOME;
1783  }
1784 
1785  if (c->key_info_file && c->encrypt) {
1786  av_log(s, AV_LOG_WARNING, "Cannot use both -hls_key_info_file and -hls_enc,"
1787  " ignoring -hls_enc\n");
1788  }
1789 
1790  if (!vs->encrypt_started || (c->flags & HLS_PERIODIC_REKEY)) {
1791  if (c->key_info_file) {
1792  if ((err = hls_encryption_start(s, vs)) < 0)
1793  goto fail;
1794  } else {
1795  if (!c->encrypt_started) {
1796  if ((err = do_encrypt(s, vs)) < 0)
1797  goto fail;
1798  c->encrypt_started = 1;
1799  }
1800  av_strlcpy(vs->key_uri, c->key_uri, sizeof(vs->key_uri));
1801  av_strlcpy(vs->key_string, c->key_string, sizeof(vs->key_string));
1802  av_strlcpy(vs->iv_string, c->iv_string, sizeof(vs->iv_string));
1803  }
1804  vs->encrypt_started = 1;
1805  }
1806  err = av_strlcpy(iv_string, vs->iv_string, sizeof(iv_string));
1807  if (!err) {
1808  snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, vs->sequence);
1809  memset(vs->iv_string, 0, sizeof(vs->iv_string));
1810  memcpy(vs->iv_string, iv_string, sizeof(iv_string));
1811  }
1812  }
1813  if (c->segment_type != SEGMENT_TYPE_FMP4) {
1814  if (oc->oformat->priv_class && oc->priv_data) {
1815  av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
1816  }
1817  if (c->flags & HLS_SINGLE_FILE) {
1818  if (c->key_info_file || c->encrypt) {
1819  av_dict_set(&options, "encryption_key", vs->key_string, 0);
1820  av_dict_set(&options, "encryption_iv", vs->iv_string, 0);
1821 
1822  /* Write temp file with cryption content */
1823  av_freep(&vs->basename_tmp);
1824  vs->basename_tmp = av_asprintf("crypto:%s.tmp", oc->url);
1825 
1826  /* append temp file content into single file */
1827  av_freep(&vs->basename);
1828  vs->basename = av_asprintf("%s", oc->url);
1829  } else {
1830  vs->basename_tmp = vs->basename;
1831  }
1833  if (!vs->out_single_file)
1834  if ((err = hlsenc_io_open(s, &vs->out_single_file, vs->basename, &options)) < 0) {
1835  if (c->ignore_io_errors)
1836  err = 0;
1837  goto fail;
1838  }
1839 
1840  if ((err = hlsenc_io_open(s, &vs->out, vs->basename_tmp, &options)) < 0) {
1841  if (c->ignore_io_errors)
1842  err = 0;
1843  goto fail;
1844  }
1845 
1846  }
1847  }
1848  if (vs->vtt_basename) {
1850  if ((err = hlsenc_io_open(s, &vtt_oc->pb, vtt_oc->url, &options)) < 0) {
1851  if (c->ignore_io_errors)
1852  err = 0;
1853  goto fail;
1854  }
1855  }
1857 
1858  if (vs->vtt_basename) {
1859  err = avformat_write_header(vtt_oc,NULL);
1860  if (err < 0)
1861  return err;
1862  }
1863 
1864  return 0;
1865 fail:
1867 
1868  return err;
1869 }
1870 
1872 {
1873  char b[21];
1874  time_t t = time(NULL);
1875  struct tm *p, tmbuf;
1876  HLSContext *hls = s->priv_data;
1877 
1878  p = localtime_r(&t, &tmbuf);
1879  // no %s support when strftime returned error or left format string unchanged
1880  // also no %s support on MSVC, which invokes the invalid parameter handler on unsupported format strings, instead of returning an error
1881  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1882  return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.m4s" : "-%s.m4s";
1883  }
1884  return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts";
1885 }
1886 
1887 static int append_postfix(char *name, int name_buf_len, int i)
1888 {
1889  char *p;
1890  char extension[10] = {'\0'};
1891 
1892  p = strrchr(name, '.');
1893  if (p) {
1894  av_strlcpy(extension, p, sizeof(extension));
1895  *p = '\0';
1896  }
1897 
1898  snprintf(name + strlen(name), name_buf_len - strlen(name), POSTFIX_PATTERN, i);
1899 
1900  if (strlen(extension))
1901  av_strlcat(name, extension, name_buf_len);
1902 
1903  return 0;
1904 }
1905 
1906 static int validate_name(int nb_vs, const char *fn)
1907 {
1908  const char *filename, *subdir_name;
1909  char *fn_dup = NULL;
1910  int ret = 0;
1911 
1912  if (!fn)
1913  return AVERROR(EINVAL);
1914 
1915  fn_dup = av_strdup(fn);
1916  if (!fn_dup)
1917  return AVERROR(ENOMEM);
1918  filename = av_basename(fn);
1919  subdir_name = av_dirname(fn_dup);
1920 
1921  if (nb_vs > 1 && !av_stristr(filename, "%v") && !av_stristr(subdir_name, "%v")) {
1922  av_log(NULL, AV_LOG_ERROR, "More than 1 variant streams are present, %%v is expected "
1923  "either in the filename or in the sub-directory name of file %s\n", fn);
1924  ret = AVERROR(EINVAL);
1925  goto fail;
1926  }
1927 
1928  if (av_stristr(filename, "%v") && av_stristr(subdir_name, "%v")) {
1929  av_log(NULL, AV_LOG_ERROR, "%%v is expected either in the filename or "
1930  "in the sub-directory name of file %s, but only in one of them\n", fn);
1931  ret = AVERROR(EINVAL);
1932  goto fail;
1933  }
1934 
1935 fail:
1936  av_freep(&fn_dup);
1937  return ret;
1938 }
1939 
1940 static int format_name(const char *buf, char **s, int index, const char *varname)
1941 {
1942  const char *proto, *dir;
1943  char *orig_buf_dup = NULL, *mod_buf_dup = NULL;
1944  int ret = 0;
1945 
1946  orig_buf_dup = av_strdup(buf);
1947  if (!orig_buf_dup)
1948  return AVERROR(ENOMEM);
1949 
1950  if (!av_stristr(buf, "%v")) {
1951  *s = orig_buf_dup;
1952  return 0;
1953  }
1954 
1955  if (!varname) {
1956  if (replace_int_data_in_filename(s, orig_buf_dup, 'v', index) < 1) {
1957  ret = AVERROR(EINVAL);
1958  goto fail;
1959  }
1960  } else {
1961  if (replace_str_data_in_filename(s, orig_buf_dup, 'v', varname) < 1) {
1962  ret = AVERROR(EINVAL);
1963  goto fail;
1964  }
1965  }
1966 
1967  proto = avio_find_protocol_name(orig_buf_dup);
1968  dir = av_dirname(orig_buf_dup);
1969 
1970  /* if %v is present in the file's directory, create sub-directory */
1971  if (av_stristr(dir, "%v") && proto && !strcmp(proto, "file")) {
1972  mod_buf_dup = av_strdup(*s);
1973  dir = av_dirname(mod_buf_dup);
1974  if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
1975  ret = AVERROR(errno);
1976  goto fail;
1977  }
1978  }
1979 
1980 fail:
1981  av_freep(&orig_buf_dup);
1982  av_freep(&mod_buf_dup);
1983  return ret;
1984 }
1985 
1987  enum AVMediaType codec_type,
1988  int64_t stream_id)
1989 {
1990  unsigned int stream_index, cnt;
1991  if (stream_id < 0 || stream_id > s->nb_streams - 1)
1992  return -1;
1993  cnt = 0;
1994  for (stream_index = 0; stream_index < s->nb_streams; stream_index++) {
1995  if (s->streams[stream_index]->codecpar->codec_type != codec_type)
1996  continue;
1997  if (cnt == stream_id)
1998  return stream_index;
1999  cnt++;
2000  }
2001  return -1;
2002 }
2003 
2005 {
2006  HLSContext *hls = s->priv_data;
2007  VariantStream *vs;
2008  int stream_index, i, j;
2009  enum AVMediaType codec_type;
2010  int nb_varstreams = 0, nb_streams;
2011  char *p, *q, *saveptr1, *saveptr2, *varstr, *keyval;
2012  const char *val;
2013 
2014  /**
2015  * Expected format for var_stream_map string is as below:
2016  * "a:0,v:0 a:1,v:1"
2017  * "a:0,agroup:a0,default:1,language:ENG a:1,agroup:a1,default:0 v:0,agroup:a0 v:1,agroup:a1"
2018  * This string specifies how to group the audio, video and subtitle streams
2019  * into different variant streams. The variant stream groups are separated
2020  * by space.
2021  *
2022  * a:, v:, s: are keys to specify audio, video and subtitle streams
2023  * respectively. Allowed values are 0 to 9 digits (limited just based on
2024  * practical usage)
2025  *
2026  * agroup: is key to specify audio group. A string can be given as value.
2027  * sgroup: is key to specify subtitle group. A string can be given as value.
2028  */
2029  p = av_strdup(hls->var_stream_map);
2030  if (!p)
2031  return AVERROR(ENOMEM);
2032 
2033  q = p;
2034  while (av_strtok(q, " \t", &saveptr1)) {
2035  q = NULL;
2036  nb_varstreams++;
2037  }
2038  av_freep(&p);
2039 
2040  hls->var_streams = av_mallocz(sizeof(*hls->var_streams) * nb_varstreams);
2041  if (!hls->var_streams)
2042  return AVERROR(ENOMEM);
2043  hls->nb_varstreams = nb_varstreams;
2044 
2045  p = hls->var_stream_map;
2046  nb_varstreams = 0;
2047  while (varstr = av_strtok(p, " \t", &saveptr1)) {
2048  p = NULL;
2049 
2050  if (nb_varstreams < hls->nb_varstreams) {
2051  vs = &(hls->var_streams[nb_varstreams]);
2052  vs->var_stream_idx = nb_varstreams;
2053  vs->is_default = 0;
2054  nb_varstreams++;
2055  } else
2056  return AVERROR(EINVAL);
2057 
2058  q = varstr;
2059  while (1) {
2060  if (!av_strncasecmp(q, "a:", 2) || !av_strncasecmp(q, "v:", 2) ||
2061  !av_strncasecmp(q, "s:", 2))
2062  vs->nb_streams++;
2063  q = strchr(q, ',');
2064  if (!q)
2065  break;
2066  q++;
2067  }
2068  vs->streams = av_mallocz(sizeof(AVStream *) * vs->nb_streams);
2069  if (!vs->streams)
2070  return AVERROR(ENOMEM);
2071 
2072  nb_streams = 0;
2073  while (keyval = av_strtok(varstr, ",", &saveptr2)) {
2074  int64_t num;
2075  char *end;
2076  varstr = NULL;
2077  if (av_strstart(keyval, "language:", &val)) {
2078  vs->language = val;
2079  continue;
2080  } else if (av_strstart(keyval, "default:", &val)) {
2081  vs->is_default = (!av_strncasecmp(val, "YES", strlen("YES")) ||
2082  (!av_strncasecmp(val, "1", strlen("1"))));
2083  hls->has_default_key = 1;
2084  continue;
2085  } else if (av_strstart(keyval, "name:", &val)) {
2086  vs->varname = val;
2087  continue;
2088  } else if (av_strstart(keyval, "agroup:", &val)) {
2089  vs->agroup = val;
2090  continue;
2091  } else if (av_strstart(keyval, "sgroup:", &val)) {
2092  vs->sgroup = val;
2093  continue;
2094  } else if (av_strstart(keyval, "ccgroup:", &val)) {
2095  vs->ccgroup = val;
2096  continue;
2097  } else if (av_strstart(keyval, "v:", &val)) {
2099  hls->has_video_m3u8 = 1;
2100  } else if (av_strstart(keyval, "a:", &val)) {
2102  } else if (av_strstart(keyval, "s:", &val)) {
2104  } else {
2105  av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
2106  return AVERROR(EINVAL);
2107  }
2108 
2109  num = strtoll(val, &end, 10);
2110  if (!av_isdigit(*val) || *end != '\0') {
2111  av_log(s, AV_LOG_ERROR, "Invalid stream number: '%s'\n", val);
2112  return AVERROR(EINVAL);
2113  }
2114  stream_index = get_nth_codec_stream_index(s, codec_type, num);
2115 
2116  if (stream_index >= 0 && nb_streams < vs->nb_streams) {
2117  for (i = 0; nb_streams > 0 && i < nb_streams; i++) {
2118  if (vs->streams[i] == s->streams[stream_index]) {
2119  av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once inside "
2120  "variant definition #%d\n", nb_varstreams - 1);
2121  return AVERROR(EINVAL);
2122  }
2123  }
2124  for (j = 0; nb_varstreams > 1 && j < nb_varstreams - 1; j++) {
2125  for (i = 0; i < hls->var_streams[j].nb_streams; i++) {
2126  if (hls->var_streams[j].streams[i] == s->streams[stream_index]) {
2127  av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once "
2128  "in two different variant definitions #%d and #%d\n",
2129  j, nb_varstreams - 1);
2130  return AVERROR(EINVAL);
2131  }
2132  }
2133  }
2134  vs->streams[nb_streams++] = s->streams[stream_index];
2135  } else {
2136  av_log(s, AV_LOG_ERROR, "Unable to map stream at %s\n", keyval);
2137  return AVERROR(EINVAL);
2138  }
2139  }
2140  }
2141  av_log(s, AV_LOG_DEBUG, "Number of variant streams %d\n",
2142  hls->nb_varstreams);
2143 
2144  return 0;
2145 }
2146 
2148 {
2149  HLSContext *hls = s->priv_data;
2150  int nb_ccstreams = 0;
2151  char *p, *q, *ccstr, *keyval;
2152  char *saveptr1 = NULL, *saveptr2 = NULL;
2153  const char *val;
2154  ClosedCaptionsStream *ccs;
2155 
2156  p = av_strdup(hls->cc_stream_map);
2157  if(!p)
2158  return AVERROR(ENOMEM);
2159 
2160  q = p;
2161  while (av_strtok(q, " \t", &saveptr1)) {
2162  q = NULL;
2163  nb_ccstreams++;
2164  }
2165  av_freep(&p);
2166 
2167  hls->cc_streams = av_mallocz(sizeof(*hls->cc_streams) * nb_ccstreams);
2168  if (!hls->cc_streams)
2169  return AVERROR(ENOMEM);
2170  hls->nb_ccstreams = nb_ccstreams;
2171 
2172  p = hls->cc_stream_map;
2173  nb_ccstreams = 0;
2174  while (ccstr = av_strtok(p, " \t", &saveptr1)) {
2175  p = NULL;
2176 
2177  if (nb_ccstreams < hls->nb_ccstreams)
2178  ccs = &(hls->cc_streams[nb_ccstreams++]);
2179  else
2180  return AVERROR(EINVAL);
2181 
2182  while (keyval = av_strtok(ccstr, ",", &saveptr2)) {
2183  ccstr = NULL;
2184 
2185  if (av_strstart(keyval, "ccgroup:", &val)) {
2186  ccs->ccgroup = val;
2187  } else if (av_strstart(keyval, "instreamid:", &val)) {
2188  ccs->instreamid = val;
2189  } else if (av_strstart(keyval, "language:", &val)) {
2190  ccs->language = val;
2191  } else {
2192  av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
2193  return AVERROR(EINVAL);
2194  }
2195  }
2196 
2197  if (!ccs->ccgroup || !ccs->instreamid) {
2198  av_log(s, AV_LOG_ERROR, "Insufficient parameters in cc stream map string\n");
2199  return AVERROR(EINVAL);
2200  }
2201 
2202  if (av_strstart(ccs->instreamid, "CC", &val)) {
2203  if (atoi(val) < 1 || atoi(val) > 4) {
2204  av_log(s, AV_LOG_ERROR, "Invalid instream ID CC index %d in %s, range 1-4\n",
2205  atoi(val), ccs->instreamid);
2206  return AVERROR(EINVAL);
2207  }
2208  } else if (av_strstart(ccs->instreamid, "SERVICE", &val)) {
2209  if (atoi(val) < 1 || atoi(val) > 63) {
2210  av_log(s, AV_LOG_ERROR, "Invalid instream ID SERVICE index %d in %s, range 1-63 \n",
2211  atoi(val), ccs->instreamid);
2212  return AVERROR(EINVAL);
2213  }
2214  } else {
2215  av_log(s, AV_LOG_ERROR, "Invalid instream ID %s, supported are CCn or SERVICEn\n",
2216  ccs->instreamid);
2217  return AVERROR(EINVAL);
2218  }
2219  }
2220 
2221  return 0;
2222 }
2223 
2225 {
2226  HLSContext *hls = s->priv_data;
2227  unsigned int i;
2228  int ret = 0;
2229 
2230  if (hls->cc_stream_map) {
2232  if (ret < 0)
2233  return ret;
2234  }
2235 
2236  if (hls->var_stream_map) {
2238  } else {
2239  //By default, a single variant stream with all the codec streams is created
2240  hls->var_streams = av_mallocz(sizeof(*hls->var_streams));
2241  if (!hls->var_streams)
2242  return AVERROR(ENOMEM);
2243  hls->nb_varstreams = 1;
2244 
2245  hls->var_streams[0].var_stream_idx = 0;
2246  hls->var_streams[0].nb_streams = s->nb_streams;
2247  hls->var_streams[0].streams = av_mallocz(sizeof(AVStream *) *
2248  hls->var_streams[0].nb_streams);
2249  if (!hls->var_streams[0].streams)
2250  return AVERROR(ENOMEM);
2251 
2252  //by default, the first available ccgroup is mapped to the variant stream
2253  if (hls->nb_ccstreams)
2254  hls->var_streams[0].ccgroup = hls->cc_streams[0].ccgroup;
2255 
2256  for (i = 0; i < s->nb_streams; i++)
2257  hls->var_streams[0].streams[i] = s->streams[i];
2258  }
2259  return 0;
2260 }
2261 
2263 {
2264  HLSContext *hls = s->priv_data;
2265  const char *dir;
2266  char *fn1= NULL, *fn2 = NULL;
2267  int ret = 0;
2268 
2269  fn1 = av_strdup(s->url);
2270  if (!fn1)
2271  return AVERROR(ENOMEM);
2272  dir = av_dirname(fn1);
2273 
2274  /**
2275  * if output file's directory has %v, variants are created in sub-directories
2276  * then master is created at the sub-directories level
2277  */
2278  if (dir && av_stristr(av_basename(dir), "%v")) {
2279  fn2 = av_strdup(dir);
2280  if (!fn2) {
2281  ret = AVERROR(ENOMEM);
2282  goto fail;
2283  }
2284  dir = av_dirname(fn2);
2285  }
2286 
2287  if (dir && strcmp(dir, "."))
2289  else
2291 
2292  if (!hls->master_m3u8_url) {
2293  ret = AVERROR(ENOMEM);
2294  goto fail;
2295  }
2296 
2297 fail:
2298  av_freep(&fn1);
2299  av_freep(&fn2);
2300 
2301  return ret;
2302 }
2303 
2305 {
2306  HLSContext *hls = s->priv_data;
2307  int ret, i, j;
2308  VariantStream *vs = NULL;
2309 
2310  for (i = 0; i < hls->nb_varstreams; i++) {
2311  int subtitle_streams = 0;
2312  vs = &hls->var_streams[i];
2313 
2315  if (ret < 0)
2316  return ret;
2317  //av_assert0(s->nb_streams == hls->avf->nb_streams);
2318  for (j = 0; j < vs->nb_streams; j++) {
2319  AVStream *inner_st;
2320  AVStream *outer_st = vs->streams[j];
2321 
2322  if (hls->max_seg_size > 0) {
2323  if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
2324  (outer_st->codecpar->bit_rate > hls->max_seg_size)) {
2325  av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, "
2326  "(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.",
2327  outer_st->codecpar->bit_rate, hls->max_seg_size);
2328  }
2329  }
2330 
2331  if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
2332  inner_st = vs->avf->streams[j - subtitle_streams];
2333  else if (vs->vtt_avf) {
2334  inner_st = vs->vtt_avf->streams[0];
2335  subtitle_streams++;
2336  } else {
2337  /* We have a subtitle stream, when the user does not want one */
2338  inner_st = NULL;
2339  continue;
2340  }
2341  avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
2342  if (outer_st->codecpar->codec_id == AV_CODEC_ID_HEVC &&
2343  outer_st->codecpar->codec_tag != MKTAG('h','v','c','1')) {
2344  av_log(s, AV_LOG_WARNING, "Stream HEVC is not hvc1, you should use tag:v hvc1 to set it.\n");
2345  }
2346  write_codec_attr(outer_st, vs);
2347 
2348  }
2349  /* Update the Codec Attr string for the mapped audio groups */
2350  if (vs->has_video && vs->agroup) {
2351  for (j = 0; j < hls->nb_varstreams; j++) {
2352  VariantStream *vs_agroup = &(hls->var_streams[j]);
2353  if (!vs_agroup->has_video && !vs_agroup->has_subtitle &&
2354  vs_agroup->agroup &&
2355  !av_strcasecmp(vs_agroup->agroup, vs->agroup)) {
2356  write_codec_attr(vs_agroup->streams[0], vs);
2357  }
2358  }
2359  }
2360  }
2361 
2362  return ret;
2363 }
2364 
2366 {
2367  HLSContext *hls = s->priv_data;
2369  int ret = 0;
2370 
2371  set_http_options(s, &options, hls);
2374  if (ret < 0)
2375  return ret;
2377  hlsenc_io_close(s, &vs->out, hls->fmp4_init_filename);
2378 
2379  return ret;
2380 }
2381 
2383 {
2384  int ret = 0;
2385  int64_t read_byte = 0;
2386  int64_t total_size = 0;
2387  char *filename = NULL;
2388  char buf[BUFSIZE];
2389  AVFormatContext *oc = vs->avf;
2390 
2391  hlsenc_io_close(s, &vs->out, vs->basename_tmp);
2392  filename = av_asprintf("%s.tmp", oc->url);
2393  ret = s->io_open(s, &vs->out, filename, AVIO_FLAG_READ, NULL);
2394  if (ret < 0) {
2395  av_free(filename);
2396  return ret;
2397  }
2398 
2399  do {
2400  read_byte = avio_read(vs->out, buf, BUFSIZE);
2401  if (read_byte > 0) {
2402  avio_write(vs->out_single_file, buf, read_byte);
2403  total_size += read_byte;
2404  ret = total_size;
2405  }
2406  } while (read_byte > 0);
2407 
2408  hlsenc_io_close(s, &vs->out, filename);
2409  av_free(filename);
2410 
2411  return ret;
2412 }
2414 {
2415  HLSContext *hls = s->priv_data;
2416  AVFormatContext *oc = NULL;
2417  AVStream *st = s->streams[pkt->stream_index];
2418  int64_t end_pts = 0;
2419  int is_ref_pkt = 1;
2420  int ret = 0, can_split = 1, i, j;
2421  int stream_index = 0;
2422  int subtitle_streams = 0;
2423  int range_length = 0;
2424  const char *proto = NULL;
2425  int use_temp_file = 0;
2426  VariantStream *vs = NULL;
2427  char *old_filename = NULL;
2428 
2429  for (i = 0; i < hls->nb_varstreams; i++) {
2430  vs = &hls->var_streams[i];
2431  for (j = 0; j < vs->nb_streams; j++) {
2433  subtitle_streams++;
2434  }
2435  if (vs->streams[j] == st) {
2437  oc = vs->vtt_avf;
2438  stream_index = 0;
2439  } else {
2440  oc = vs->avf;
2441  stream_index = j - subtitle_streams;
2442  }
2443  break;
2444  }
2445  }
2446 
2447  if (oc)
2448  break;
2449  }
2450 
2451  if (!oc) {
2452  av_log(s, AV_LOG_ERROR, "Unable to find mapping variant stream\n");
2453  return AVERROR(ENOMEM);
2454  }
2455 
2456  end_pts = hls->recording_time * vs->number;
2457 
2458  if (vs->sequence - vs->nb_entries > hls->start_sequence && hls->init_time > 0) {
2459  /* reset end_pts, hls->recording_time at end of the init hls list */
2460  int64_t init_list_dur = hls->init_time * vs->nb_entries;
2461  int64_t after_init_list_dur = (vs->sequence - hls->start_sequence - vs->nb_entries) * hls->time;
2462  hls->recording_time = hls->time;
2463  end_pts = init_list_dur + after_init_list_dur ;
2464  }
2465 
2466  if (vs->start_pts == AV_NOPTS_VALUE) {
2467  vs->start_pts = pkt->pts;
2469  vs->start_pts_from_audio = 1;
2470  }
2472  vs->start_pts = pkt->pts;
2473  vs->start_pts_from_audio = 0;
2474  }
2475 
2476  if (vs->has_video) {
2477  can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
2478  ((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME));
2479  is_ref_pkt = (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->stream_index == vs->reference_stream_index);
2480  }
2481  if (pkt->pts == AV_NOPTS_VALUE)
2482  is_ref_pkt = can_split = 0;
2483 
2484  if (is_ref_pkt) {
2485  if (vs->end_pts == AV_NOPTS_VALUE)
2486  vs->end_pts = pkt->pts;
2487  if (vs->new_start) {
2488  vs->new_start = 0;
2489  vs->duration = (double)(pkt->pts - vs->end_pts)
2490  * st->time_base.num / st->time_base.den;
2491  vs->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den;
2492  } else {
2493  if (pkt->duration) {
2494  vs->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den;
2495  } else {
2496  av_log(s, AV_LOG_WARNING, "Stream %d packet with pts %" PRId64 " has duration 0. The segment duration may not be precise.\n",
2497  pkt->stream_index, pkt->pts);
2498  vs->duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den;
2499  }
2500  }
2501  }
2502 
2503  can_split = can_split && (pkt->pts - vs->end_pts > 0);
2504  if (vs->packets_written && can_split && av_compare_ts(pkt->pts - vs->start_pts, st->time_base,
2505  end_pts, AV_TIME_BASE_Q) >= 0) {
2506  int64_t new_start_pos;
2507  int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
2508 
2509  av_write_frame(oc, NULL); /* Flush any buffered data */
2510  new_start_pos = avio_tell(oc->pb);
2511  vs->size = new_start_pos - vs->start_pos;
2512  avio_flush(oc->pb);
2513  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2514  if (!vs->init_range_length) {
2515  range_length = avio_close_dyn_buf(oc->pb, &vs->init_buffer);
2516  if (range_length <= 0)
2517  return AVERROR(EINVAL);
2518  avio_write(vs->out, vs->init_buffer, range_length);
2519  if (!hls->resend_init_file)
2520  av_freep(&vs->init_buffer);
2521  vs->init_range_length = range_length;
2522  avio_open_dyn_buf(&oc->pb);
2523  vs->packets_written = 0;
2524  vs->start_pos = range_length;
2525  if (!byterange_mode) {
2527  }
2528  }
2529  }
2530  if (!byterange_mode) {
2531  if (vs->vtt_avf) {
2532  hlsenc_io_close(s, &vs->vtt_avf->pb, vs->vtt_avf->url);
2533  }
2534  }
2535 
2536  if (hls->flags & HLS_SINGLE_FILE) {
2537  ret = flush_dynbuf(vs, &range_length);
2538  av_freep(&vs->temp_buffer);
2539  if (ret < 0) {
2540  return ret;
2541  }
2542  vs->size = range_length;
2543  if (hls->key_info_file || hls->encrypt)
2544  vs->size = append_single_file(s, vs);
2545  } else {
2546  if (oc->url[0]) {
2547  proto = avio_find_protocol_name(oc->url);
2548  use_temp_file = proto && !strcmp(proto, "file")
2549  && (hls->flags & HLS_TEMP_FILE);
2550  }
2551 
2552  if ((hls->max_seg_size > 0 && (vs->size + vs->start_pos >= hls->max_seg_size)) || !byterange_mode) {
2554  char *filename = NULL;
2555  if (hls->key_info_file || hls->encrypt) {
2556  av_dict_set(&options, "encryption_key", vs->key_string, 0);
2557  av_dict_set(&options, "encryption_iv", vs->iv_string, 0);
2558  filename = av_asprintf("crypto:%s", oc->url);
2559  } else {
2560  filename = av_asprintf("%s", oc->url);
2561  }
2562  if (!filename) {
2564  return AVERROR(ENOMEM);
2565  }
2566 
2567  // look to rename the asset name
2568  if (use_temp_file)
2569  av_dict_set(&options, "mpegts_flags", "resend_headers", 0);
2570 
2571  set_http_options(s, &options, hls);
2572 
2573  ret = hlsenc_io_open(s, &vs->out, filename, &options);
2574  if (ret < 0) {
2576  "Failed to open file '%s'\n", filename);
2577  av_freep(&filename);
2579  return hls->ignore_io_errors ? 0 : ret;
2580  }
2581  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2582  write_styp(vs->out);
2583  }
2584  ret = flush_dynbuf(vs, &range_length);
2585  if (ret < 0) {
2586  av_freep(&filename);
2588  return ret;
2589  }
2590  ret = hlsenc_io_close(s, &vs->out, filename);
2591  if (ret < 0) {
2592  av_log(s, AV_LOG_WARNING, "upload segment failed,"
2593  " will retry with a new http session.\n");
2594  ff_format_io_close(s, &vs->out);
2595  ret = hlsenc_io_open(s, &vs->out, filename, &options);
2596  reflush_dynbuf(vs, &range_length);
2597  ret = hlsenc_io_close(s, &vs->out, filename);
2598  }
2600  av_freep(&vs->temp_buffer);
2601  av_freep(&filename);
2602  }
2603 
2604  if (use_temp_file)
2605  hls_rename_temp_file(s, oc);
2606  }
2607 
2608  old_filename = av_strdup(oc->url);
2609  if (!old_filename) {
2610  return AVERROR(ENOMEM);
2611  }
2612 
2613  if (vs->start_pos || hls->segment_type != SEGMENT_TYPE_FMP4) {
2614  double cur_duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den;
2615  ret = hls_append_segment(s, hls, vs, cur_duration, vs->start_pos, vs->size);
2616  vs->end_pts = pkt->pts;
2617  vs->duration = 0;
2618  if (ret < 0) {
2619  av_freep(&old_filename);
2620  return ret;
2621  }
2622  }
2623 
2624  // if we're building a VOD playlist, skip writing the manifest multiple times, and just wait until the end
2625  if (hls->pl_type != PLAYLIST_TYPE_VOD) {
2626  if ((ret = hls_window(s, 0, vs)) < 0) {
2627  av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
2628  ff_format_io_close(s, &vs->out);
2629  if ((ret = hls_window(s, 0, vs)) < 0) {
2630  av_freep(&old_filename);
2631  return ret;
2632  }
2633  }
2634  }
2635 
2636  if (hls->resend_init_file && hls->segment_type == SEGMENT_TYPE_FMP4) {
2637  ret = hls_init_file_resend(s, vs);
2638  if (ret < 0) {
2639  av_freep(&old_filename);
2640  return ret;
2641  }
2642  }
2643 
2644  if (hls->flags & HLS_SINGLE_FILE) {
2645  vs->start_pos += vs->size;
2646  if (hls->key_info_file || hls->encrypt)
2647  ret = hls_start(s, vs);
2648  if (hls->segment_type == SEGMENT_TYPE_MPEGTS && oc->oformat->priv_class && oc->priv_data) {
2649  av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
2650  }
2651  } else if (hls->max_seg_size > 0) {
2652  if (vs->size + vs->start_pos >= hls->max_seg_size) {
2653  vs->sequence++;
2654  sls_flag_file_rename(hls, vs, old_filename);
2655  ret = hls_start(s, vs);
2656  vs->start_pos = 0;
2657  /* When split segment by byte, the duration is short than hls_time,
2658  * so it is not enough one segment duration as hls_time, */
2659  } else {
2660  vs->start_pos = new_start_pos;
2661  }
2662  } else {
2663  vs->start_pos = new_start_pos;
2664  sls_flag_file_rename(hls, vs, old_filename);
2665  ret = hls_start(s, vs);
2666  }
2667  vs->number++;
2668  av_freep(&old_filename);
2669 
2670  if (ret < 0) {
2671  return ret;
2672  }
2673  }
2674 
2675  vs->packets_written++;
2676  if (oc->pb) {
2677  ret = ff_write_chained(oc, stream_index, pkt, s, 0);
2678  vs->video_keyframe_size += pkt->size;
2680  vs->video_keyframe_size = avio_tell(oc->pb);
2681  } else {
2682  vs->video_keyframe_pos = avio_tell(vs->out);
2683  }
2684  if (hls->ignore_io_errors)
2685  ret = 0;
2686  }
2687 
2688  return ret;
2689 }
2690 
2692 {
2693  HLSContext *hls = s->priv_data;
2694  int i = 0;
2695  VariantStream *vs = NULL;
2696 
2697  for (i = 0; i < hls->nb_varstreams; i++) {
2698  vs = &hls->var_streams[i];
2699 
2700  av_freep(&vs->basename);
2703  av_freep(&vs->vtt_basename);
2704  av_freep(&vs->vtt_m3u8_name);
2705 
2708  if (hls->resend_init_file)
2709  av_freep(&vs->init_buffer);
2712  av_freep(&vs->m3u8_name);
2713  av_freep(&vs->streams);
2714  }
2715 
2716  ff_format_io_close(s, &hls->m3u8_out);
2719  av_freep(&hls->key_basename);
2720  av_freep(&hls->var_streams);
2721  av_freep(&hls->cc_streams);
2722  av_freep(&hls->master_m3u8_url);
2723 }
2724 
2726 {
2727  HLSContext *hls = s->priv_data;
2728  AVFormatContext *oc = NULL;
2729  AVFormatContext *vtt_oc = NULL;
2730  char *old_filename = NULL;
2731  const char *proto = NULL;
2732  int use_temp_file = 0;
2733  int i;
2734  int ret = 0;
2735  VariantStream *vs = NULL;
2737  int range_length, byterange_mode;
2738 
2739  for (i = 0; i < hls->nb_varstreams; i++) {
2740  char *filename = NULL;
2741  vs = &hls->var_streams[i];
2742  oc = vs->avf;
2743  vtt_oc = vs->vtt_avf;
2744  old_filename = av_strdup(oc->url);
2745  use_temp_file = 0;
2746 
2747  if (!old_filename) {
2748  return AVERROR(ENOMEM);
2749  }
2750  if (hls->key_info_file || hls->encrypt) {
2751  av_dict_set(&options, "encryption_key", vs->key_string, 0);
2752  av_dict_set(&options, "encryption_iv", vs->iv_string, 0);
2753  filename = av_asprintf("crypto:%s", oc->url);
2754  } else {
2755  filename = av_asprintf("%s", oc->url);
2756  }
2757  if (!filename) {
2758  av_freep(&old_filename);
2759  return AVERROR(ENOMEM);
2760  }
2761 
2762  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2763  int range_length = 0;
2764  if (!vs->init_range_length) {
2765  uint8_t *buffer = NULL;
2766  av_write_frame(oc, NULL); /* Flush any buffered data */
2767 
2768  range_length = avio_close_dyn_buf(oc->pb, &buffer);
2769  avio_write(vs->out, buffer, range_length);
2770  av_freep(&buffer);
2771  vs->init_range_length = range_length;
2772  avio_open_dyn_buf(&oc->pb);
2773  vs->packets_written = 0;
2774  vs->start_pos = range_length;
2775  byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
2776  if (!byterange_mode) {
2777  ff_format_io_close(s, &vs->out);
2779  }
2780  }
2781  }
2782  if (!(hls->flags & HLS_SINGLE_FILE)) {
2783  set_http_options(s, &options, hls);
2784  ret = hlsenc_io_open(s, &vs->out, filename, &options);
2785  if (ret < 0) {
2786  av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
2787  goto failed;
2788  }
2789  if (hls->segment_type == SEGMENT_TYPE_FMP4)
2790  write_styp(vs->out);
2791  }
2792  ret = flush_dynbuf(vs, &range_length);
2793  if (ret < 0)
2794  goto failed;
2795 
2796  vs->size = range_length;
2797  ret = hlsenc_io_close(s, &vs->out, filename);
2798  if (ret < 0) {
2799  av_log(s, AV_LOG_WARNING, "upload segment failed, will retry with a new http session.\n");
2800  ff_format_io_close(s, &vs->out);
2801  ret = hlsenc_io_open(s, &vs->out, filename, &options);
2802  if (ret < 0) {
2803  av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
2804  goto failed;
2805  }
2806  reflush_dynbuf(vs, &range_length);
2807  ret = hlsenc_io_close(s, &vs->out, filename);
2808  if (ret < 0)
2809  av_log(s, AV_LOG_WARNING, "Failed to upload file '%s' at the end.\n", oc->url);
2810  }
2811  if (hls->flags & HLS_SINGLE_FILE) {
2812  if (hls->key_info_file || hls->encrypt) {
2813  vs->size = append_single_file(s, vs);
2814  }
2816  }
2817 failed:
2818  av_freep(&vs->temp_buffer);
2820  av_freep(&filename);
2821  av_write_trailer(oc);
2822  if (oc->url[0]) {
2823  proto = avio_find_protocol_name(oc->url);
2824  use_temp_file = proto && !strcmp(proto, "file") && (hls->flags & HLS_TEMP_FILE);
2825  }
2826 
2827  // rename that segment from .tmp to the real one
2828  if (use_temp_file && !(hls->flags & HLS_SINGLE_FILE)) {
2829  hls_rename_temp_file(s, oc);
2830  av_freep(&old_filename);
2831  old_filename = av_strdup(oc->url);
2832 
2833  if (!old_filename) {
2834  return AVERROR(ENOMEM);
2835  }
2836  }
2837 
2838  /* after av_write_trailer, then duration + 1 duration per packet */
2839  hls_append_segment(s, hls, vs, vs->duration + vs->dpp, vs->start_pos, vs->size);
2840 
2841  sls_flag_file_rename(hls, vs, old_filename);
2842 
2843  if (vtt_oc) {
2844  if (vtt_oc->pb)
2845  av_write_trailer(vtt_oc);
2846  vs->size = avio_tell(vs->vtt_avf->pb) - vs->start_pos;
2847  ff_format_io_close(s, &vtt_oc->pb);
2848  }
2849  ret = hls_window(s, 1, vs);
2850  if (ret < 0) {
2851  av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
2852  ff_format_io_close(s, &vs->out);
2853  hls_window(s, 1, vs);
2854  }
2855  ffio_free_dyn_buf(&oc->pb);
2856 
2857  av_free(old_filename);
2858  }
2859 
2860  return 0;
2861 }
2862 
2863 
2865 {
2866  int ret = 0;
2867  int i = 0;
2868  int j = 0;
2869  HLSContext *hls = s->priv_data;
2870  const char *pattern;
2871  VariantStream *vs = NULL;
2872  const char *vtt_pattern = hls->flags & HLS_SINGLE_FILE ? ".vtt" : "%d.vtt";
2873  char *p = NULL;
2874  int http_base_proto = ff_is_http_proto(s->url);
2875  int fmp4_init_filename_len = strlen(hls->fmp4_init_filename) + 1;
2876  double initial_program_date_time = av_gettime() / 1000000.0;
2877 
2878  if (hls->use_localtime) {
2880  } else {
2881  pattern = hls->segment_type == SEGMENT_TYPE_FMP4 ? "%d.m4s" : "%d.ts";
2882  if (hls->flags & HLS_SINGLE_FILE)
2883  pattern += 2;
2884  }
2885 
2886  hls->has_default_key = 0;
2887  hls->has_video_m3u8 = 0;
2889  if (ret < 0) {
2890  av_log(s, AV_LOG_ERROR, "Variant stream info update failed with status %x\n",
2891  ret);
2892  return ret;
2893  }
2894 
2895  if (!hls->method && http_base_proto) {
2896  av_log(hls, AV_LOG_WARNING, "No HTTP method set, hls muxer defaulting to method PUT.\n");
2897  }
2898 
2899  ret = validate_name(hls->nb_varstreams, s->url);
2900  if (ret < 0)
2901  return ret;
2902 
2903  if (hls->segment_filename) {
2905  if (ret < 0)
2906  return ret;
2907  }
2908 
2909  if (av_strcasecmp(hls->fmp4_init_filename, "init.mp4")) {
2911  if (ret < 0)
2912  return ret;
2913  }
2914 
2915  if (hls->subtitle_filename) {
2917  if (ret < 0)
2918  return ret;
2919  }
2920 
2921  if (hls->master_pl_name) {
2923  if (ret < 0) {
2924  av_log(s, AV_LOG_ERROR, "Master stream info update failed with status %x\n",
2925  ret);
2926  return ret;
2927  }
2928  }
2929 
2933  time_t t = time(NULL);
2935  hls->start_sequence = av_gettime();
2937  hls->start_sequence = (int64_t)t;
2939  char b[15];
2940  struct tm *p, tmbuf;
2941  if (!(p = localtime_r(&t, &tmbuf)))
2942  return AVERROR(errno);
2943  if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p))
2944  return AVERROR(ENOMEM);
2945  hls->start_sequence = strtoll(b, NULL, 10);
2946  }
2947  av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
2948  }
2949 
2950  hls->recording_time = hls->init_time ? hls->init_time : hls->time;
2951 
2952  if (hls->flags & HLS_SPLIT_BY_TIME && hls->flags & HLS_INDEPENDENT_SEGMENTS) {
2953  // Independent segments cannot be guaranteed when splitting by time
2956  "'split_by_time' and 'independent_segments' cannot be "
2957  "enabled together. Disabling 'independent_segments' flag\n");
2958  }
2959 
2960  for (i = 0; i < hls->nb_varstreams; i++) {
2961  vs = &hls->var_streams[i];
2962 
2963  ret = format_name(s->url, &vs->m3u8_name, i, vs->varname);
2964  if (ret < 0)
2965  return ret;
2966 
2967  vs->sequence = hls->start_sequence;
2968  vs->start_pts = AV_NOPTS_VALUE;
2969  vs->end_pts = AV_NOPTS_VALUE;
2970  vs->current_segment_final_filename_fmt[0] = '\0';
2971  vs->initial_prog_date_time = initial_program_date_time;
2972 
2973  for (j = 0; j < vs->nb_streams; j++) {
2975  /* Get one video stream to reference for split segments
2976  * so use the first video stream index. */
2977  if ((vs->has_video == 1) && (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)) {
2978  vs->reference_stream_index = vs->streams[j]->index;
2979  }
2981  }
2982 
2983  if (vs->has_video > 1)
2984  av_log(s, AV_LOG_WARNING, "More than a single video stream present, expect issues decoding it.\n");
2985  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2986  vs->oformat = av_guess_format("mp4", NULL, NULL);
2987  } else {
2988  vs->oformat = av_guess_format("mpegts", NULL, NULL);
2989  }
2990  if (!vs->oformat)
2991  return AVERROR_MUXER_NOT_FOUND;
2992 
2993  if (hls->segment_filename) {
2994  ret = format_name(hls->segment_filename, &vs->basename, i, vs->varname);
2995  if (ret < 0)
2996  return ret;
2997  } else {
2998  p = strrchr(vs->m3u8_name, '.');
2999  if (p)
3000  *p = '\0';
3001 
3002  vs->basename = av_asprintf("%s%s", vs->m3u8_name, pattern);
3003  if (!vs->basename)
3004  return AVERROR(ENOMEM);
3005 
3006  if (p)
3007  *p = '.';
3008  }
3009 
3010  if (hls->segment_type == SEGMENT_TYPE_FMP4) {
3011  if (hls->nb_varstreams > 1)
3012  fmp4_init_filename_len += strlen(POSTFIX_PATTERN);
3013  if (hls->flags & HLS_SINGLE_FILE) {
3015  if (!vs->fmp4_init_filename)
3016  return AVERROR(ENOMEM);
3017  } else {
3018  vs->fmp4_init_filename = av_malloc(fmp4_init_filename_len);
3019  if (!vs->fmp4_init_filename)
3020  return AVERROR(ENOMEM);
3022  fmp4_init_filename_len);
3023  if (hls->nb_varstreams > 1) {
3024  if (av_stristr(vs->fmp4_init_filename, "%v")) {
3027  &vs->fmp4_init_filename, i, vs->varname);
3028  } else {
3029  ret = append_postfix(vs->fmp4_init_filename, fmp4_init_filename_len, i);
3030  }
3031  if (ret < 0)
3032  return ret;
3033  }
3034 
3035  if (hls->use_localtime) {
3036  int r;
3037  char *expanded = NULL;
3038 
3039  r = strftime_expand(vs->fmp4_init_filename, &expanded);
3040  if (r < 0) {
3041  av_log(s, AV_LOG_ERROR, "Could not get segment filename with strftime\n");
3042  return r;
3043  }
3045  vs->fmp4_init_filename = expanded;
3046  }
3047 
3048  p = strrchr(vs->m3u8_name, '/');
3049  if (p) {
3050  char tmp = *(++p);
3051  *p = '\0';
3052  vs->base_output_dirname = av_asprintf("%s%s", vs->m3u8_name,
3053  vs->fmp4_init_filename);
3054  *p = tmp;
3055  } else {
3057  }
3058  if (!vs->base_output_dirname)
3059  return AVERROR(ENOMEM);
3060  }
3061  }
3062 
3064  if (ret < 0)
3065  return ret;
3066 
3067  if (vs->has_subtitle) {
3068  vs->vtt_oformat = av_guess_format("webvtt", NULL, NULL);
3069  if (!vs->vtt_oformat)
3070  return AVERROR_MUXER_NOT_FOUND;
3071 
3072  p = strrchr(vs->m3u8_name, '.');
3073  if (p)
3074  *p = '\0';
3075 
3076  vs->vtt_basename = av_asprintf("%s%s", vs->m3u8_name, vtt_pattern);
3077  if (!vs->vtt_basename)
3078  return AVERROR(ENOMEM);
3079 
3080  if (hls->subtitle_filename) {
3082  if (ret < 0)
3083  return ret;
3084  } else {
3085  vs->vtt_m3u8_name = av_asprintf("%s_vtt.m3u8", vs->m3u8_name);
3086  if (!vs->vtt_m3u8_name)
3087  return AVERROR(ENOMEM);
3088  }
3089  if (p)
3090  *p = '.';
3091  }
3092 
3093  if ((ret = hls_mux_init(s, vs)) < 0)
3094  return ret;
3095 
3096  if (hls->flags & HLS_APPEND_LIST) {
3097  parse_playlist(s, vs->m3u8_name, vs);
3098  vs->discontinuity = 1;
3099  if (hls->init_time > 0) {
3100  av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
3101  " hls_init_time value will have no effect\n");
3102  hls->init_time = 0;
3103  hls->recording_time = hls->time;
3104  }
3105  }
3106 
3107  if ((ret = hls_start(s, vs)) < 0)
3108  return ret;
3109  vs->number++;
3110  }
3111 
3112  return ret;
3113 }
3114 
3115 #define OFFSET(x) offsetof(HLSContext, x)
3116 #define E AV_OPT_FLAG_ENCODING_PARAM
3117 static const AVOption options[] = {
3118  {"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
3119  {"hls_time", "set segment length", OFFSET(time), AV_OPT_TYPE_DURATION, {.i64 = 2000000}, 0, INT64_MAX, E},
3120  {"hls_init_time", "set segment length at init list", OFFSET(init_time), AV_OPT_TYPE_DURATION, {.i64 = 0}, 0, INT64_MAX, E},
3121  {"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
3122  {"hls_delete_threshold", "set number of unreferenced segments to keep before deleting", OFFSET(hls_delete_threshold), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, E},
3123  {"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},
3124  {"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},
3125  {"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3126  {"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3127  {"hls_segment_options","set segments files format options of hls", OFFSET(format_options), AV_OPT_TYPE_DICT, {.str = NULL}, 0, 0, E},
3128  {"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
3129  {"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},
3130  {"hls_enc", "enable AES128 encryption support", OFFSET(encrypt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E},
3131  {"hls_enc_key", "hex-coded 16 byte key to encrypt the segments", OFFSET(key), AV_OPT_TYPE_STRING, .flags = E},
3132  {"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},
3133  {"hls_enc_iv", "hex-coded 16 byte initialization vector", OFFSET(iv), AV_OPT_TYPE_STRING, .flags = E},
3134  {"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3135  {"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"},
3136  {"mpegts", "make segment file to mpegts files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, UINT_MAX, E, "segment_type"},
3137  {"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"},
3138  {"hls_fmp4_init_filename", "set fragment mp4 file init filename", OFFSET(fmp4_init_filename), AV_OPT_TYPE_STRING, {.str = "init.mp4"}, 0, 0, E},
3139  {"hls_fmp4_init_resend", "resend fragment mp4 init file after refresh m3u8 every time", OFFSET(resend_init_file), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
3140  {"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
3141  {"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"},
3142  {"temp_file", "write segment and playlist to temporary file and rename when complete", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_TEMP_FILE }, 0, UINT_MAX, E, "flags"},
3143  {"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"},
3144  {"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, "flags"},
3145  {"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, "flags"},
3146  {"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, "flags"},
3147  {"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"},
3148  {"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"},
3149  {"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
3150  {"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"},
3151  {"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"},
3152  {"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"},
3153  {"periodic_rekey", "reload keyinfo file periodically for re-keying", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PERIODIC_REKEY }, 0, UINT_MAX, E, "flags"},
3154  {"independent_segments", "add EXT-X-INDEPENDENT-SEGMENTS, whenever applicable", 0, AV_OPT_TYPE_CONST, { .i64 = HLS_INDEPENDENT_SEGMENTS }, 0, UINT_MAX, E, "flags"},
3155  {"iframes_only", "add EXT-X-I-FRAMES-ONLY, whenever applicable", 0, AV_OPT_TYPE_CONST, { .i64 = HLS_I_FRAMES_ONLY }, 0, UINT_MAX, E, "flags"},
3156  {"strftime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
3157  {"strftime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
3158  {"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" },
3159  {"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, "pl_type" },
3160  {"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, "pl_type" },
3161  {"method", "set the HTTP method(default: PUT)", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3162  {"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_LAST-1, E, "start_sequence_source_type" },
3163  {"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" },
3164  {"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" },
3165  {"epoch_us", "microseconds since epoch", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
3166  {"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" },
3167  {"http_user_agent", "override User-Agent field in HTTP header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3168  {"var_stream_map", "Variant stream map string", OFFSET(var_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3169  {"cc_stream_map", "Closed captions stream map string", OFFSET(cc_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3170  {"master_pl_name", "Create HLS master playlist with this name", OFFSET(master_pl_name), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3171  {"master_pl_publish_rate", "Publish master play list every after this many segment intervals", OFFSET(master_publish_rate), AV_OPT_TYPE_INT, {.i64 = 0}, 0, UINT_MAX, E},
3172  {"http_persistent", "Use persistent HTTP connections", OFFSET(http_persistent), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
3173  {"timeout", "set timeout for socket I/O operations", OFFSET(timeout), AV_OPT_TYPE_DURATION, { .i64 = -1 }, -1, INT_MAX, .flags = E },
3174  {"ignore_io_errors", "Ignore IO errors for stable long-duration runs with network output", OFFSET(ignore_io_errors), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
3175  {"headers", "set custom HTTP headers, can override built in default headers", OFFSET(headers), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
3176  { NULL },
3177 };
3178 
3179 static const AVClass hls_class = {
3180  .class_name = "hls muxer",
3181  .item_name = av_default_item_name,
3182  .option = options,
3183  .version = LIBAVUTIL_VERSION_INT,
3184 };
3185 
3186 
3188  .p.name = "hls",
3189  .p.long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
3190  .p.extensions = "m3u8",
3191  .p.audio_codec = AV_CODEC_ID_AAC,
3192  .p.video_codec = AV_CODEC_ID_H264,
3193  .p.subtitle_codec = AV_CODEC_ID_WEBVTT,
3195  .p.priv_class = &hls_class,
3196  .priv_data_size = sizeof(HLSContext),
3197  .init = hls_init,
3201  .deinit = hls_deinit,
3202 };
M
#define M(a, b)
Definition: vp3dsp.c:48
ff_get_chomp_line
int ff_get_chomp_line(AVIOContext *s, char *buf, int maxlen)
Same as ff_get_line but strip the white-space characters in the text tail.
Definition: aviobuf.c:807
FF_ENABLE_DEPRECATION_WARNINGS
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:82
VariantStream::vtt_avf
AVFormatContext * vtt_avf
Definition: hlsenc.c:134
AVMEDIA_TYPE_SUBTITLE
@ AVMEDIA_TYPE_SUBTITLE
Definition: avutil.h:204
hls_write_header
static int hls_write_header(AVFormatContext *s)
Definition: hlsenc.c:2304
av_codec_get_id
enum AVCodecID av_codec_get_id(const struct AVCodecTag *const *tags, unsigned int tag)
Get the AVCodecID for the given codec tag tag.
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
AV_BPRINT_SIZE_UNLIMITED
#define AV_BPRINT_SIZE_UNLIMITED
AVCodecParameters::extradata
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: codec_par.h:76
get_relative_url
static const char * get_relative_url(const char *master_url, const char *media_url)
Definition: hlsenc.c:1341
name
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option name
Definition: writing_filters.txt:88
find_segment_by_filename
static HLSSegment * find_segment_by_filename(HLSSegment *segment, const char *filename)
Definition: hlsenc.c:969
append_postfix
static int append_postfix(char *name, int name_buf_len, int i)
Definition: hlsenc.c:1887
level
uint8_t level
Definition: svq3.c:204
AV_CODEC_ID_AC3
@ AV_CODEC_ID_AC3
Definition: codec_id.h:441
HLSContext::timeout
int64_t timeout
Definition: hlsenc.c:256
sls_flag_use_localtime_filename
static int sls_flag_use_localtime_filename(AVFormatContext *oc, HLSContext *c, VariantStream *vs)
Definition: hlsenc.c:1069
HLS_TEMP_FILE
@ HLS_TEMP_FILE
Definition: hlsenc.c:109
AVOutputFormat::name
const char * name
Definition: avformat.h:508
av_bprint_is_complete
static int av_bprint_is_complete(const AVBPrint *buf)
Test if the print buffer is complete (not truncated).
Definition: bprint.h:215
r
const char * r
Definition: vf_curves.c:126
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
avformat_new_stream
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
Definition: options.c:243
strftime_expand
static int strftime_expand(const char *fmt, char **dest)
Definition: hlsenc.c:263
VariantStream::has_subtitle
int has_subtitle
Definition: hlsenc.c:137
AVCodecParameters::codec_type
enum AVMediaType codec_type
General type of the encoded data.
Definition: codec_par.h:58
HLSContext::resend_init_file
int resend_init_file
resend init file into disk after refresh m3u8
Definition: hlsenc.c:210
HLSContext::hls_delete_threshold
int hls_delete_threshold
Definition: hlsenc.c:204
av_compare_ts
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
AVFMT_NODIMENSIONS
#define AVFMT_NODIMENSIONS
Format does not need width/height.
Definition: avformat.h:483
VariantStream::codec_attr
char codec_attr[128]
Definition: hlsenc.c:178
ffio_wfourcc
static av_always_inline void ffio_wfourcc(AVIOContext *pb, const uint8_t *s)
Definition: avio_internal.h:116
avio_close
int avio_close(AVIOContext *s)
Close the resource accessed by the AVIOContext s and free it.
Definition: aviobuf.c:1247
HLSContext::key_file
char key_file[LINE_BUFFER_SIZE+1]
Definition: hlsenc.c:231
av_bprint_init
void av_bprint_init(AVBPrint *buf, unsigned size_init, unsigned size_max)
Definition: bprint.c:69
ff_hls_write_end_list
void ff_hls_write_end_list(AVIOContext *out)
Definition: hlsplaylist.c:189
hls_init_file_resend
static int hls_init_file_resend(AVFormatContext *s, VariantStream *vs)
Definition: hlsenc.c:2365
av_stristr
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:59
HLSSegment::filename
char filename[MAX_URL_SIZE]
Definition: hlsenc.c:79
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:57
av_dict_count
int av_dict_count(const AVDictionary *m)
Get number of entries in dictionary.
Definition: dict.c:37
fn1
#define fn1(name, depth)
Definition: blend_modes.c:87
PLAYLIST_TYPE_VOD
@ PLAYLIST_TYPE_VOD
Definition: hlsplaylist.h:34
VariantStream::key_uri
char key_uri[LINE_BUFFER_SIZE+1]
Definition: hlsenc.c:173
AV_TIME_BASE_Q
#define AV_TIME_BASE_Q
Internal time base represented as fractional value.
Definition: avutil.h:260
VariantStream::init_range_length
int init_range_length
Definition: hlsenc.c:129
av_asprintf
char * av_asprintf(const char *fmt,...)
Definition: avstring.c:116
av_strcasecmp
int av_strcasecmp(const char *a, const char *b)
Locale-independent case-insensitive compare.
Definition: avstring.c:208
write_styp
static void write_styp(AVIOContext *pb)
Definition: hlsenc.c:525
VariantStream::var_stream_idx
unsigned var_stream_idx
Definition: hlsenc.c:121
HLSContext::cc_stream_map
char * cc_stream_map
Definition: hlsenc.c:249
PLAYLIST_TYPE_EVENT
@ PLAYLIST_TYPE_EVENT
Definition: hlsplaylist.h:33
HLS_APPEND_LIST
@ HLS_APPEND_LIST
Definition: hlsenc.c:104
tmp
static uint8_t tmp[11]
Definition: aes_ctr.c:28
fn2
#define fn2(a, b)
Definition: afir_template.c:50
AVFormatContext::streams
AVStream ** streams
A list of all streams in the file.
Definition: avformat.h:1172
deinit
static void deinit(AVFormatContext *s)
Definition: chromaprint.c:50
HLS_SECOND_LEVEL_SEGMENT_INDEX
@ HLS_SECOND_LEVEL_SEGMENT_INDEX
Definition: hlsenc.c:106
HLS_DELETE_SEGMENTS
@ HLS_DELETE_SEGMENTS
Definition: hlsenc.c:99
AVFormatContext::strict_std_compliance
int strict_std_compliance
Allow non-standard and experimental extension.
Definition: avformat.h:1398
HLSContext::ignore_io_errors
int ignore_io_errors
Definition: hlsenc.c:257
KEYSIZE
#define KEYSIZE
Definition: hlsenc.c:72
HLS_MICROSECOND_UNIT
#define HLS_MICROSECOND_UNIT
Definition: hlsenc.c:74
ClosedCaptionsStream
Definition: hlsenc.c:190
AVOption
AVOption.
Definition: opt.h:251
HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH
@ HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH
Definition: hlsenc.c:63
b
#define b
Definition: input.c:41
data
const char data[16]
Definition: mxf.c:146
HLS_INDEPENDENT_SEGMENTS
@ HLS_INDEPENDENT_SEGMENTS
Definition: hlsenc.c:111
HLS_OMIT_ENDLIST
@ HLS_OMIT_ENDLIST
Definition: hlsenc.c:102
HLSContext::iv
char * iv
Definition: hlsenc.c:226
VariantStream::iv_string
char iv_string[KEYSIZE *2+1]
Definition: hlsenc.c:175
AV_OPT_TYPE_DURATION
@ AV_OPT_TYPE_DURATION
Definition: opt.h:239
AV_DICT_APPEND
#define AV_DICT_APPEND
If the entry already exists, append to it.
Definition: dict.h:82
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:196
ffio_open_whitelist
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:1220
VariantStream::start_pts
int64_t start_pts
Definition: hlsenc.c:141
HLSContext::nb_ccstreams
unsigned int nb_ccstreams
Definition: hlsenc.c:243
AVPacket::duration
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: packet.h:392
AVCodecParameters::codec_tag
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: codec_par.h:66
FF_LEVEL_UNKNOWN
#define FF_LEVEL_UNKNOWN
Definition: avcodec.h:1692
PLAYLIST_TYPE_NONE
@ PLAYLIST_TYPE_NONE
Definition: hlsplaylist.h:32
mathematics.h
AVDictionary
Definition: dict.c:32
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
BUFSIZE
#define BUFSIZE
Definition: hlsenc.c:75
avformat_init_output
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:430
hls_write_trailer
static int hls_write_trailer(struct AVFormatContext *s)
Definition: hlsenc.c:2725
get_nth_codec_stream_index
static int get_nth_codec_stream_index(AVFormatContext *s, enum AVMediaType codec_type, int64_t stream_id)
Definition: hlsenc.c:1986
LINE_BUFFER_SIZE
#define LINE_BUFFER_SIZE
Definition: hlsenc.c:73
codec_type
enum AVMediaType codec_type
Definition: rtp.c:37
E
#define E
Definition: hlsenc.c:3116
os_support.h
AV_PKT_FLAG_KEY
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: packet.h:429
update_variant_stream_info
static int update_variant_stream_info(AVFormatContext *s)
Definition: hlsenc.c:2224
av_basename
const char * av_basename(const char *path)
Thread safe basename.
Definition: avstring.c:253
AV_WB64
#define AV_WB64(p, v)
Definition: intreadwrite.h:433
FFOutputFormat::p
AVOutputFormat p
The public AVOutputFormat.
Definition: mux.h:34
hlsplaylist.h
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:30
HLSContext::allowcache
int allowcache
Definition: hlsenc.c:214
HLSContext::user_agent
char * user_agent
Definition: hlsenc.c:238
sls_flag_check_duration_size
static int sls_flag_check_duration_size(HLSContext *hls, VariantStream *vs)
Definition: hlsenc.c:1042
av_append_path_component
char * av_append_path_component(const char *path, const char *component)
Append path component to the existing path.
Definition: avstring.c:297
VariantStream::key_file
char key_file[LINE_BUFFER_SIZE+1]
Definition: hlsenc.c:172
HLSSegment::duration
double duration
Definition: hlsenc.c:81
AVFormatContext::interrupt_callback
AVIOInterruptCB interrupt_callback
Custom interrupt callbacks for the I/O layer.
Definition: avformat.h:1368
do_encrypt
static int do_encrypt(AVFormatContext *s, VariantStream *vs)
Definition: hlsenc.c:717
HLSContext::use_localtime
int use_localtime
flag to expand filename with localtime
Definition: hlsenc.c:212
SEGMENT_TYPE_FMP4
@ SEGMENT_TYPE_FMP4
Definition: hlsenc.c:117
avpriv_set_pts_info
void avpriv_set_pts_info(AVStream *st, int pts_wrap_bits, unsigned int pts_num, unsigned int pts_den)
Set the time base and wrapping info for a given stream.
Definition: avformat.c:771
ff_hls_write_playlist_header
void ff_hls_write_playlist_header(AVIOContext *out, int version, int allowcache, int target_duration, int64_t sequence, uint32_t playlist_type, int iframe_mode)
Definition: hlsplaylist.c:98
segment::duration
int64_t duration
Definition: hls.c:76
fail
#define fail()
Definition: checkasm.h:134
ff_hls_muxer
const FFOutputFormat ff_hls_muxer
Definition: hlsenc.c:3187
sls_flags_filename_process
static int sls_flags_filename_process(struct AVFormatContext *s, HLSContext *hls, VariantStream *vs, HLSSegment *en, double duration, int64_t pos, int64_t size)
Definition: hlsenc.c:979
fn
#define fn(a)
Definition: afir_template.c:51
hls_start
static int hls_start(AVFormatContext *s, VariantStream *vs)
Definition: hlsenc.c:1686
hls_delete_file
static int hls_delete_file(HLSContext *hls, AVFormatContext *avf, char *path, const char *proto)
Definition: hlsenc.c:568
avio_tell
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
Definition: avio.h:500
ff_hls_write_audio_rendition
void ff_hls_write_audio_rendition(AVIOContext *out, const char *agroup, const char *filename, const char *language, int name_id, int is_default)
Definition: hlsplaylist.c:39
val
static double val(void *priv, double ch)
Definition: aeval.c:77
VariantStream::oformat
const AVOutputFormat * oformat
Definition: hlsenc.c:124
av_opt_set
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:487
VariantStream::start_pts_from_audio
int start_pts_from_audio
Definition: hlsenc.c:139
AV_CODEC_ID_MP3
@ AV_CODEC_ID_MP3
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: codec_id.h:439
ff_rename
int ff_rename(const char *url_src, const char *url_dst, void *logctx)
Wrap ffurl_move() and log if error happens.
Definition: avio.c:671
ff_data_to_hex
char * ff_data_to_hex(char *buf, const uint8_t *src, int size, int lowercase)
Write hexadecimal string corresponding to given binary data.
Definition: utils.c:454
AVRational::num
int num
Numerator.
Definition: rational.h:59
HLS_PERIODIC_REKEY
@ HLS_PERIODIC_REKEY
Definition: hlsenc.c:110
av_dirname
const char * av_dirname(char *path)
Thread safe dirname.
Definition: avstring.c:276
sls_flag_file_rename
static void sls_flag_file_rename(HLSContext *hls, VariantStream *vs, char *old_filename)
Definition: hlsenc.c:1062
HLS_ROUND_DURATIONS
@ HLS_ROUND_DURATIONS
Definition: hlsenc.c:100
HLSContext::use_localtime_mkdir
int use_localtime_mkdir
flag to mkdir dirname in timebased filename
Definition: hlsenc.c:213
avio_close_dyn_buf
int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer)
Return the written size and a pointer to the buffer.
Definition: aviobuf.c:1520
avassert.h
lrint
#define lrint
Definition: tablegen.h:53
pkt
AVPacket * pkt
Definition: movenc.c:59
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
AVFormatContext::metadata
AVDictionary * metadata
Metadata that applies to the whole file.
Definition: avformat.h:1330
get_stream_bit_rate
static int64_t get_stream_bit_rate(AVStream *stream)
Definition: hlsenc.c:1361
HLSSegment::keyframe_pos
int64_t keyframe_pos
Definition: hlsenc.c:85
HLSSegment::discont
int discont
Definition: hlsenc.c:82
ff_hls_write_subtitle_rendition
void ff_hls_write_subtitle_rendition(AVIOContext *out, const char *sgroup, const char *filename, const char *language, int name_id, int is_default)
Definition: hlsplaylist.c:54
HLSContext::key_basename
char * key_basename
Definition: hlsenc.c:227
HLSContext::m3u8_out
AVIOContext * m3u8_out
Definition: hlsenc.c:253
duration
int64_t duration
Definition: movenc.c:64
avio_open_dyn_buf
int avio_open_dyn_buf(AVIOContext **s)
Open a write only memory stream.
Definition: aviobuf.c:1475
HLSContext::encrypt_started
int encrypt_started
Definition: hlsenc.c:228
HLSSegment::next
struct HLSSegment * next
Definition: hlsenc.c:92
validate_name
static int validate_name(int nb_vs, const char *fn)
Definition: hlsenc.c:1906
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:256
HLSContext::method
char * method
Definition: hlsenc.c:237
set_http_options
static void set_http_options(AVFormatContext *s, AVDictionary **options, HLSContext *c)
Definition: hlsenc.c:327
CODEC_ATTRIBUTE_WRITTEN
@ CODEC_ATTRIBUTE_WRITTEN
Definition: hlsenc.c:68
VariantStream::vtt_oformat
const AVOutputFormat * vtt_oformat
Definition: hlsenc.c:125
ff_nal_unit_extract_rbsp
uint8_t * ff_nal_unit_extract_rbsp(const uint8_t *src, uint32_t src_len, uint32_t *dst_len, int header_len)
Definition: avc.c:303
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition: avutil.h:202
HLSContext::has_default_key
int has_default_key
Definition: hlsenc.c:259
AV_CODEC_ID_MP2
@ AV_CODEC_ID_MP2
Definition: codec_id.h:438
av_strtok
char * av_strtok(char *s, const char *delim, char **saveptr)
Split the string into several tokens which can be accessed by successive calls to av_strtok().
Definition: avstring.c:179
flush_dynbuf
static int flush_dynbuf(VariantStream *vs, int *range_length)
Definition: hlsenc.c:535
init
int(* init)(AVBSFContext *ctx)
Definition: dts2pts_bsf.c:365
hls_deinit
static void hls_deinit(AVFormatContext *s)
Definition: hlsenc.c:2691
HLS_SECOND_LEVEL_SEGMENT_SIZE
@ HLS_SECOND_LEVEL_SEGMENT_SIZE
Definition: hlsenc.c:108
AV_OPT_TYPE_INT64
@ AV_OPT_TYPE_INT64
Definition: opt.h:226
FF_PROFILE_UNKNOWN
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:1566
VariantStream::has_video
int has_video
Definition: hlsenc.c:136
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
AVIO_FLAG_WRITE
#define AVIO_FLAG_WRITE
write-only
Definition: avio.h:624
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:201
VariantStream::language
const char * language
Definition: hlsenc.c:183
ctx
AVFormatContext * ctx
Definition: movenc.c:48
nb_streams
static int nb_streams
Definition: ffprobe.c:309
HLSContext::time
int64_t time
Definition: hlsenc.c:201
HLSContext::key_url
char * key_url
Definition: hlsenc.c:225
AVOutputFormat::codec_tag
const struct AVCodecTag *const * codec_tag
List of supported codec_id-codec_tag pairs, ordered by "better choice first".
Definition: avformat.h:533
av_stristart
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:48
AVFormatContext::opaque
void * opaque
User data.
Definition: avformat.h:1607
VariantStream::key_string
char key_string[KEYSIZE *2+1]
Definition: hlsenc.c:174
key
const char * key
Definition: hwcontext_opencl.c:174
AVCPBProperties
This structure describes the bitrate properties of an encoded bitstream.
Definition: defs.h:126
AV_CODEC_ID_H264
@ AV_CODEC_ID_H264
Definition: codec_id.h:79
avformat_write_header
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:451
VariantStream::attr_status
CodecAttributeStatus attr_status
Definition: hlsenc.c:179
VariantStream::video_lastpos
int64_t video_lastpos
Definition: hlsenc.c:143
VariantStream::reference_stream_index
int reference_stream_index
Definition: hlsenc.c:152
VariantStream::base_output_dirname
char * base_output_dirname
Definition: hlsenc.c:168
VariantStream::segments
HLSSegment * segments
Definition: hlsenc.c:154
write_codec_attr
static void write_codec_attr(AVStream *st, VariantStream *vs)
Definition: hlsenc.c:346
time_internal.h
ff_http_do_new_request
int ff_http_do_new_request(URLContext *h, const char *uri)
Send a new HTTP request, reusing the old connection.
Definition: http.c:452
avio_flush
void avio_flush(AVIOContext *s)
Force flushing of buffered data.
Definition: aviobuf.c:244
AV_CODEC_ID_WEBVTT
@ AV_CODEC_ID_WEBVTT
Definition: codec_id.h:562
AVFormatContext
Format I/O context.
Definition: avformat.h:1104
VariantStream::video_keyframe_pos
int64_t video_keyframe_pos
Definition: hlsenc.c:144
internal.h
AVStream::codecpar
AVCodecParameters * codecpar
Codec parameters associated with this stream.
Definition: avformat.h:861
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
replace_str_data_in_filename
static int replace_str_data_in_filename(char **s, const char *filename, char placeholder, const char *datastring)
Definition: hlsenc.c:437
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
reflush_dynbuf
static void reflush_dynbuf(VariantStream *vs, int *range_length)
Definition: hlsenc.c:556
AVStream::time_base
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented.
Definition: avformat.h:877
NULL
#define NULL
Definition: coverity.c:32
AVERROR_PATCHWELCOME
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:64
StartSequenceSourceType
StartSequenceSourceType
Definition: hlsenc.c:59
VariantStream::m3u8_name
char * m3u8_name
Definition: hlsenc.c:162
write_trailer
static int write_trailer(AVFormatContext *s1)
Definition: v4l2enc.c:101
VariantStream::new_start
int new_start
Definition: hlsenc.c:138
HLS_PROGRAM_DATE_TIME
@ HLS_PROGRAM_DATE_TIME
Definition: hlsenc.c:105
HLSSegment::sub_filename
char sub_filename[MAX_URL_SIZE]
Definition: hlsenc.c:80
HLSSegment::iv_string
char iv_string[KEYSIZE *2+1]
Definition: hlsenc.c:90
period
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option keep it simple and lowercase description are in without period
Definition: writing_filters.txt:89
HLSSegment::key_uri
char key_uri[LINE_BUFFER_SIZE+1]
Definition: hlsenc.c:89
HLSContext::vtt_format_options_str
char * vtt_format_options_str
Definition: hlsenc.c:219
HLSContext::http_delete
AVIOContext * http_delete
Definition: hlsenc.c:255
AV_OPT_TYPE_DICT
@ AV_OPT_TYPE_DICT
Definition: opt.h:232
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:237
ffurl_shutdown
int ffurl_shutdown(URLContext *h, int flags)
Signal the URLContext that we are done reading or writing the stream.
Definition: avio.c:657
AVFormatContext::pb
AVIOContext * pb
I/O context.
Definition: avformat.h:1146
avc.h
HLS_START_SEQUENCE_LAST
@ HLS_START_SEQUENCE_LAST
Definition: hlsenc.c:64
hlsenc_io_open
static int hlsenc_io_open(AVFormatContext *s, AVIOContext **pb, const char *filename, AVDictionary **options)
Definition: hlsenc.c:286
AVStream::metadata
AVDictionary * metadata
Definition: avformat.h:918
FFOutputFormat
Definition: mux.h:30
double
double
Definition: af_crystalizer.c:132
HLSSegment
Definition: hlsenc.c:78
AV_DICT_DONT_OVERWRITE
#define AV_DICT_DONT_OVERWRITE
Don't overwrite existing entries.
Definition: dict.h:81
time.h
VariantStream::discontinuity_set
int discontinuity_set
Definition: hlsenc.c:150
AVOutputFormat::priv_class
const AVClass * priv_class
AVClass for the private context.
Definition: avformat.h:536
av_write_frame
int av_write_frame(AVFormatContext *s, AVPacket *pkt)
Write a packet to an output media file.
Definition: mux.c:1194
HLSContext::vtt_format_options
AVDictionary * vtt_format_options
Definition: hlsenc.c:235
randomize
static int randomize(uint8_t *buf, int len)
Definition: hlsenc.c:703
PLAYLIST_TYPE_NB
@ PLAYLIST_TYPE_NB
Definition: hlsplaylist.h:35
SegmentType
SegmentType
Definition: hlsenc.c:115
AVCodecParameters::level
int level
Definition: codec_par.h:123
index
int index
Definition: gxfenc.c:89
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
HLS_START_SEQUENCE_AS_START_NUMBER
@ HLS_START_SEQUENCE_AS_START_NUMBER
Definition: hlsenc.c:60
HLSContext::key
char * key
Definition: hlsenc.c:224
VariantStream::old_segments
HLSSegment * old_segments
Definition: hlsenc.c:156
AV_CODEC_ID_EAC3
@ AV_CODEC_ID_EAC3
Definition: codec_id.h:478
VariantStream::is_default
int is_default
Definition: hlsenc.c:182
AVCodecParameters::extradata_size
int extradata_size
Size of the extradata content in bytes.
Definition: codec_par.h:80
HLS_I_FRAMES_ONLY
@ HLS_I_FRAMES_ONLY
Definition: hlsenc.c:112
AV_CODEC_ID_AAC
@ AV_CODEC_ID_AAC
Definition: codec_id.h:440
av_strncasecmp
int av_strncasecmp(const char *a, const char *b, size_t n)
Locale-independent case-insensitive compare.
Definition: avstring.c:218
VariantStream::initial_prog_date_time
double initial_prog_date_time
Definition: hlsenc.c:164
HLSContext::segment_filename
char * segment_filename
Definition: hlsenc.c:207
hls_append_segment
static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls, VariantStream *vs, double duration, int64_t pos, int64_t size)
Definition: hlsenc.c:1113
HLSFlags
HLSFlags
Definition: hlsenc.c:96
HLSContext::cc_streams
ClosedCaptionsStream * cc_streams
Definition: hlsenc.c:242
ff_hls_write_playlist_version
void ff_hls_write_playlist_version(AVIOContext *out, int version)
Definition: hlsplaylist.c:31
HLSContext::has_video_m3u8
int has_video_m3u8
Definition: hlsenc.c:260
VariantStream::init_buffer
uint8_t * init_buffer
Definition: hlsenc.c:131
AVIOContext
Bytestream IO Context.
Definition: avio.h:166
VariantStream::ccgroup
const char * ccgroup
Definition: hlsenc.c:186
HLSSegment::keyframe_size
int64_t keyframe_size
Definition: hlsenc.c:86
hls_rename_temp_file
static int hls_rename_temp_file(AVFormatContext *s, AVFormatContext *oc)
Definition: hlsenc.c:1326
AVMediaType
AVMediaType
Definition: avutil.h:199
AVPacket::size
int size
Definition: packet.h:375
HLSContext::master_pl_name
char * master_pl_name
Definition: hlsenc.c:250
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:115
av_codec_get_tag
unsigned int av_codec_get_tag(const struct AVCodecTag *const *tags, enum AVCodecID id)
Get the codec tag for the given codec id id.
av_bprint_finalize
int av_bprint_finalize(AVBPrint *buf, char **ret_str)
Finalize a print buffer.
Definition: bprint.c:235
HLS_SPLIT_BY_TIME
@ HLS_SPLIT_BY_TIME
Definition: hlsenc.c:103
create_master_playlist
static int create_master_playlist(AVFormatContext *s, VariantStream *const input_vs)
Definition: hlsenc.c:1377
VariantStream::basename_tmp
char * basename_tmp
Definition: hlsenc.c:158
localtime_r
#define localtime_r
Definition: time_internal.h:46
HLSContext::start_sequence_source_type
uint32_t start_sequence_source_type
Definition: hlsenc.c:199
AVFormatContext::url
char * url
input or output URL.
Definition: avformat.h:1187
size
int size
Definition: twinvq_data.h:10344
AV_NOPTS_VALUE
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
HLSSegment::pos
int64_t pos
Definition: hlsenc.c:83
AVFMT_ALLOW_FLUSH
#define AVFMT_ALLOW_FLUSH
Format allows flushing.
Definition: avformat.h:488
HLSContext::pl_type
uint32_t pl_type
Definition: hlsenc.c:206
AVCodecParameters::profile
int profile
Codec-specific bitstream restrictions that the stream conforms to.
Definition: codec_par.h:122
CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN
@ CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN
Definition: hlsenc.c:69
AVFMT_NOFILE
#define AVFMT_NOFILE
Demuxer will use avio_open, no opened file should be provided by the caller.
Definition: avformat.h:468
ff_is_http_proto
int ff_is_http_proto(const char *filename)
Utility function to check if the file uses http or https protocol.
Definition: utils.c:578
ff_format_io_close
int ff_format_io_close(AVFormatContext *s, AVIOContext **pb)
Definition: avformat.c:853
ff_hls_write_init_file
void ff_hls_write_init_file(AVIOContext *out, const char *filename, int byterange_mode, int64_t size, int64_t pos)
Definition: hlsplaylist.c:122
HLSSegment::discont_program_date_time
double discont_program_date_time
Definition: hlsenc.c:93
AVStream::sample_aspect_ratio
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown)
Definition: avformat.h:916
parse_variant_stream_mapstring
static int parse_variant_stream_mapstring(AVFormatContext *s)
Definition: hlsenc.c:2004
hls_init
static int hls_init(AVFormatContext *s)
Definition: hlsenc.c:2864
VariantStream::agroup
const char * agroup
Definition: hlsenc.c:184
avio_write
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
Definition: aviobuf.c:222
avio_wb32
void avio_wb32(AVIOContext *s, unsigned int val)
Definition: aviobuf.c:386
av_isdigit
static av_const int av_isdigit(int c)
Locale-independent conversion of ASCII isdigit.
Definition: avstring.h:203
VariantStream::sequence
int64_t sequence
Definition: hlsenc.c:123
line
Definition: graph2dot.c:48
AVPacket::flags
int flags
A combination of AV_PKT_FLAG values.
Definition: packet.h:380
HLSContext::start_sequence
int64_t start_sequence
Definition: hlsenc.c:198
av_dict_free
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values.
Definition: dict.c:223
av_strstart
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:37
VariantStream::temp_buffer
uint8_t * temp_buffer
Definition: hlsenc.c:130
HLSContext::format_options
AVDictionary * format_options
Definition: hlsenc.c:221
OFFSET
#define OFFSET(x)
Definition: hlsenc.c:3115
HLS_DISCONT_START
@ HLS_DISCONT_START
Definition: hlsenc.c:101
VariantStream::video_keyframe_size
int64_t video_keyframe_size
Definition: hlsenc.c:145
VariantStream::basename
char * basename
Definition: hlsenc.c:159
HLS_START_SEQUENCE_AS_FORMATTED_DATETIME
@ HLS_START_SEQUENCE_AS_FORMATTED_DATETIME
Definition: hlsenc.c:62
parse_playlist
static int parse_playlist(AVFormatContext *s, const char *url, VariantStream *vs)
Definition: hlsenc.c:1202
hls_write_packet
static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition: hlsenc.c:2413
VariantStream::last_segment
HLSSegment * last_segment
Definition: hlsenc.c:155
av_write_trailer
int av_write_trailer(AVFormatContext *s)
Write the stream trailer to an output media file and free the file private data.
Definition: mux.c:1256
VariantStream::m3u8_created
int m3u8_created
Definition: hlsenc.c:181
bprint.h
URLContext
Definition: url.h:37
HLSContext::iv_string
char iv_string[KEYSIZE *2+1]
Definition: hlsenc.c:234
log.h
AVFMT_GLOBALHEADER
#define AVFMT_GLOBALHEADER
Format wants global header.
Definition: avformat.h:478
AVOutputFormat
Definition: avformat.h:507
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
AVPacket::pts
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:367
avio_internal.h
round
static av_always_inline av_const double round(double x)
Definition: libm.h:444
AVERROR_MUXER_NOT_FOUND
#define AVERROR_MUXER_NOT_FOUND
Muxer not found.
Definition: error.h:62
HLSContext::key_string
char key_string[KEYSIZE *2+1]
Definition: hlsenc.c:233
VariantStream::sgroup
const char * sgroup
Definition: hlsenc.c:185
HLSContext::max_nb_segments
int max_nb_segments
Definition: hlsenc.c:203
VariantStream::start_pos
int64_t start_pos
Definition: hlsenc.c:147
AVCPBProperties::max_bitrate
int64_t max_bitrate
Maximum bitrate of the stream, in bits per second.
Definition: defs.h:131
VariantStream::nb_streams
unsigned int nb_streams
Definition: hlsenc.c:180
HLSContext::sub_m3u8_out
AVIOContext * sub_m3u8_out
Definition: hlsenc.c:254
hls_encryption_start
static int hls_encryption_start(AVFormatContext *s, VariantStream *vs)
Definition: hlsenc.c:790
AV_CODEC_ID_HEVC
@ AV_CODEC_ID_HEVC
Definition: codec_id.h:226
HLSContext
Definition: hls.c:203
options
static const AVOption options[]
Definition: hlsenc.c:3117
hlsenc_io_close
static int hlsenc_io_close(AVFormatContext *s, AVIOContext **pb, char *filename)
Definition: hlsenc.c:307
AVFormatContext::max_delay
int max_delay
Definition: avformat.h:1216
VariantStream::number
unsigned number
Definition: hlsenc.c:122
av_mallocz
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:254
ff_get_line
int ff_get_line(AVIOContext *s, char *buf, int maxlen)
Read a whole line of text from AVIOContext.
Definition: aviobuf.c:790
HLSSegment::var_stream_idx
unsigned var_stream_idx
Definition: hlsenc.c:87
AV_PKT_DATA_CPB_PROPERTIES
@ AV_PKT_DATA_CPB_PROPERTIES
This side data corresponds to the AVCPBProperties struct.
Definition: packet.h:146
len
int len
Definition: vorbis_enc_data.h:426
start_sequence
static const uint8_t start_sequence[]
Definition: rtpdec_h264.c:65
profile
int profile
Definition: mxfenc.c:2009
VariantStream::duration
double duration
Definition: hlsenc.c:146
VariantStream::streams
AVStream ** streams
Definition: hlsenc.c:177
write_packet
static int write_packet(Muxer *mux, OutputStream *ost, AVPacket *pkt)
Definition: ffmpeg_mux.c:61
HLSContext::fmp4_init_filename
char * fmp4_init_filename
Definition: hlsenc.c:208
avcodec.h
HLSContext::encrypt
int encrypt
Definition: hlsenc.c:223
HLSContext::http_persistent
int http_persistent
Definition: hls.c:225
HLS_SINGLE_FILE
@ HLS_SINGLE_FILE
Definition: hlsenc.c:98
ffio_free_dyn_buf
void ffio_free_dyn_buf(AVIOContext **s)
Free a dynamic buffer.
Definition: aviobuf.c:1548
AVStream::id
int id
Format-specific stream ID.
Definition: avformat.h:850
ret
ret
Definition: filter_design.txt:187
AVStream
Stream structure.
Definition: avformat.h:838
VariantStream::out_single_file
AVIOContext * out_single_file
Definition: hlsenc.c:127
ff_hls_write_file_entry
int ff_hls_write_file_entry(AVIOContext *out, int insert_discont, int byterange_mode, double duration, int round_duration, int64_t size, int64_t pos, const char *baseurl, const char *filename, double *prog_date_time, int64_t video_keyframe_size, int64_t video_keyframe_pos, int iframe_mode)
Definition: hlsplaylist.c:132
avio_seek
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
Definition: aviobuf.c:252
AVClass::class_name
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:71
VariantStream::fmp4_init_filename
char * fmp4_init_filename
Definition: hlsenc.c:167
HLSContext::subtitle_filename
char * subtitle_filename
Definition: hlsenc.c:220
AVFormatContext::oformat
const struct AVOutputFormat * oformat
The output container format.
Definition: avformat.h:1123
av_strlcat
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:96
replace_int_data_in_filename
static int replace_int_data_in_filename(char **s, const char *filename, char placeholder, int64_t number)
Definition: hlsenc.c:477
hls_delete_old_segments
static int hls_delete_old_segments(AVFormatContext *s, HLSContext *hls, VariantStream *vs)
Definition: hlsenc.c:592
pos
unsigned int pos
Definition: spdifenc.c:413
avformat.h
av_stream_get_side_data
uint8_t * av_stream_get_side_data(const AVStream *st, enum AVPacketSideDataType type, size_t *size)
Get side information from stream.
Definition: avformat.c:141
VariantStream::end_pts
int64_t end_pts
Definition: hlsenc.c:142
av_bprintf
void av_bprintf(AVBPrint *buf, const char *fmt,...)
Definition: bprint.c:94
VariantStream::encrypt_started
int encrypt_started
Definition: hlsenc.c:170
VariantStream::discontinuity
int discontinuity
Definition: hlsenc.c:151
VariantStream::nb_entries
int nb_entries
Definition: hlsenc.c:149
SEGMENT_TYPE_MPEGTS
@ SEGMENT_TYPE_MPEGTS
Definition: hlsenc.c:116
avio_printf
int avio_printf(AVIOContext *s, const char *fmt,...) av_printf_format(2
Writes a formatted string to the context.
VariantStream::current_segment_final_filename_fmt
char current_segment_final_filename_fmt[MAX_URL_SIZE]
Definition: hlsenc.c:165
AVStream::index
int index
stream index in AVFormatContext
Definition: avformat.h:844
format_name
static int format_name(const char *buf, char **s, int index, const char *varname)
Definition: hlsenc.c:1940
MAX_URL_SIZE
#define MAX_URL_SIZE
Definition: internal.h:31
get_default_pattern_localtime_fmt
static const char * get_default_pattern_localtime_fmt(AVFormatContext *s)
Definition: hlsenc.c:1871
SEPARATOR
#define SEPARATOR
Definition: hlsenc.c:565
buffer
the frame and frame reference mechanism is intended to as much as expensive copies of that data while still allowing the filters to produce correct results The data is stored in buffers represented by AVFrame structures Several references can point to the same frame buffer
Definition: filter_design.txt:49
AVRational::den
int den
Denominator.
Definition: rational.h:60
VariantStream::packets_written
int packets_written
Definition: hlsenc.c:128
ff_hls_write_stream_info
void ff_hls_write_stream_info(AVStream *st, AVIOContext *out, int bandwidth, const char *filename, const char *agroup, const char *codecs, const char *ccgroup, const char *sgroup)
Definition: hlsplaylist.c:69
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
headers
FFmpeg currently uses a custom build this text attempts to document some of its obscure features and options Makefile the full command issued by make and its output will be shown on the screen DBG Preprocess x86 external assembler files to a dbg asm file in the object which then gets compiled Helps in developing those assembler files DESTDIR Destination directory for the install useful to prepare packages or install FFmpeg in cross environments GEN Set to ‘1’ to generate the missing or mismatched references Makefile builds all the libraries and the executables fate Run the fate test note that you must have installed it fate list List all fate regression test targets install Install headers
Definition: build_system.txt:34
av_bprint_clear
void av_bprint_clear(AVBPrint *buf)
Reset the string to "" but keep internal allocated data.
Definition: bprint.c:227
avformat_free_context
void avformat_free_context(AVFormatContext *s)
Free an AVFormatContext and all its streams.
Definition: avformat.c:96
avio_read
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
Definition: aviobuf.c:633
update_master_pl_info
static int update_master_pl_info(AVFormatContext *s)
Definition: hlsenc.c:2262
AVFormatContext::io_open
int(* io_open)(struct AVFormatContext *s, AVIOContext **pb, const char *url, int flags, AVDictionary **options)
A callback for opening new IO streams.
Definition: avformat.h:1661
sls_flag_check_duration_size_index
static int sls_flag_check_duration_size_index(HLSContext *hls)
Definition: hlsenc.c:1019
ClosedCaptionsStream::language
const char * language
Definition: hlsenc.c:193
VariantStream::vtt_m3u8_name
char * vtt_m3u8_name
Definition: hlsenc.c:161
HLSContext::baseurl
char * baseurl
Definition: hlsenc.c:218
AVPacket::stream_index
int stream_index
Definition: packet.h:376
CodecAttributeStatus
CodecAttributeStatus
Definition: hlsenc.c:67
segment
Definition: hls.c:75
HLSContext::key_info_file
char * key_info_file
Definition: hlsenc.c:230
av_gettime
int64_t av_gettime(void)
Get the current time in microseconds.
Definition: time.c:39
FF_DISABLE_DEPRECATION_WARNINGS
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:81
av_dict_set_int
int av_dict_set_int(AVDictionary **pm, const char *key, int64_t value, int flags)
Convenience wrapper for av_dict_set() that converts the value to a string and stores it.
Definition: dict.c:167
AVIO_FLAG_READ
#define AVIO_FLAG_READ
read-only
Definition: avio.h:623
av_strdup
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:270
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
av_guess_format
const 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:53
VariantStream::out
AVIOContext * out
Definition: hlsenc.c:126
HLSContext::nb_varstreams
unsigned int nb_varstreams
Definition: hlsenc.c:241
HLSContext::master_m3u8_created
int master_m3u8_created
Definition: hlsenc.c:245
VariantStream::size
int64_t size
Definition: hlsenc.c:148
HLSContext::version
int version
Definition: hlsenc.c:247
ff_mkdir_p
int ff_mkdir_p(const char *path)
Automatically create sub-directories.
Definition: utils.c:420
HLSContext::var_streams
VariantStream * var_streams
Definition: hlsenc.c:240
VariantStream::dpp
double dpp
Definition: hlsenc.c:140
VariantStream::avf
AVFormatContext * avf
Definition: hlsenc.c:133
av_free
#define av_free(p)
Definition: tableprint_vlc.h:33
AVCodecParameters::codec_id
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: codec_par.h:62
POSTFIX_PATTERN
#define POSTFIX_PATTERN
Definition: hlsenc.c:76
AVPacket
This structure stores compressed data.
Definition: packet.h:351
hls_free_segments
static void hls_free_segments(HLSSegment *p)
Definition: hlsenc.c:1315
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
HLSContext::flags
uint32_t flags
Definition: hlsenc.c:205
hls_mux_init
static int hls_mux_init(AVFormatContext *s, VariantStream *vs)
Definition: hlsenc.c:849
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
av_dict_set
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:86
av_dict_copy
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags)
Copy entries from one AVDictionary struct into another.
Definition: dict.c:237
VariantStream::varname
const char * varname
Definition: hlsenc.c:187
AVFormatContext::io_close2
int(* io_close2)(struct AVFormatContext *s, AVIOContext *pb)
A callback for closing the streams opened with AVFormatContext.io_open().
Definition: avformat.h:1713
append_single_file
static int64_t append_single_file(AVFormatContext *s, VariantStream *vs)
Definition: hlsenc.c:2382
avio_find_protocol_name
const char * avio_find_protocol_name(const char *url)
Return the name of the protocol that will handle the passed URL.
Definition: avio.c:467
d
d
Definition: ffmpeg_filter.c:156
AV_OPT_TYPE_FLAGS
@ AV_OPT_TYPE_FLAGS
Definition: opt.h:224
HLSContext::init_time
int64_t init_time
Definition: hlsenc.c:202
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
av_strlcpy
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:86
AVCodecParameters::bit_rate
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
Definition: codec_par.h:91
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
hls_window
static int hls_window(AVFormatContext *s, int last, VariantStream *vs)
Definition: hlsenc.c:1543
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
MKTAG
#define MKTAG(a, b, c, d)
Definition: macros.h:55
h
h
Definition: vp9dsp_template.c:2038
avstring.h
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:229
write_header
static void write_header(FFV1Context *f)
Definition: ffv1enc.c:346
HLSContext::key_uri
char key_uri[LINE_BUFFER_SIZE+1]
Definition: hlsenc.c:232
avformat_alloc_output_context2
int avformat_alloc_output_context2(AVFormatContext **ctx, const AVOutputFormat *oformat, const char *format_name, const char *filename)
Allocate an AVFormatContext for an output format.
Definition: mux.c:91
AVStream::pts_wrap_bits
int pts_wrap_bits
Number of bits in timestamps.
Definition: avformat.h:1005
http.h
HLS_SECOND_LEVEL_SEGMENT_DURATION
@ HLS_SECOND_LEVEL_SEGMENT_DURATION
Definition: hlsenc.c:107
av_bprint_append_data
void av_bprint_append_data(AVBPrint *buf, const char *data, unsigned size)
Append data to a print buffer.
Definition: bprint.c:158
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
snprintf
#define snprintf
Definition: snprintf.h:34
AVFormatContext::priv_data
void * priv_data
Format private data.
Definition: avformat.h:1132
ff_format_set_url
void ff_format_set_url(AVFormatContext *s, char *url)
Set AVFormatContext url field to the provided pointer.
Definition: avformat.c:846
parse_cc_stream_mapstring
static int parse_cc_stream_mapstring(AVFormatContext *s)
Definition: hlsenc.c:2147
ffio_geturlcontext
URLContext * ffio_geturlcontext(AVIOContext *s)
Return the URLContext associated with the AVIOContext.
Definition: aviobuf.c:1004
HLSContext::segment_type
int segment_type
Definition: hlsenc.c:209
HLSContext::master_m3u8_url
char * master_m3u8_url
Definition: hlsenc.c:246
HLSContext::recording_time
int64_t recording_time
Definition: hlsenc.c:215
HLSContext::max_seg_size
int64_t max_seg_size
Definition: hlsenc.c:216
HLSContext::master_publish_rate
unsigned int master_publish_rate
Definition: hlsenc.c:251
ClosedCaptionsStream::instreamid
const char * instreamid
Definition: hlsenc.c:192
HLSSegment::size
int64_t size
Definition: hlsenc.c:84
HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH
@ HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH
Definition: hlsenc.c:61
avcodec_parameters_copy
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
Copy the contents of src to dst.
Definition: codec_par.c:74
VariantStream::vtt_basename
char * vtt_basename
Definition: hlsenc.c:160
ClosedCaptionsStream::ccgroup
const char * ccgroup
Definition: hlsenc.c:191
HLSContext::headers
char * headers
Definition: hlsenc.c:258
av_fourcc2str
#define av_fourcc2str(fourcc)
Definition: avutil.h:354
hls_class
static const AVClass hls_class
Definition: hlsenc.c:3179
VariantStream
Definition: hlsenc.c:120
avio_feof
int avio_feof(AVIOContext *s)
Similar to feof() but also returns nonzero on read errors.
Definition: aviobuf.c:367
HLSContext::var_stream_map
char * var_stream_map
Definition: hlsenc.c:248
mux.h
ff_write_chained
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:1355