FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavformat/hls.c
Date: 2025-04-25 22:50:00
Exec Total Coverage
Lines: 603 1488 40.5%
Functions: 34 53 64.2%
Branches: 326 1066 30.6%
Line Branch Exec Source
1 /*
2 * Apple HTTP Live Streaming demuxer
3 * Copyright (c) 2010 Martin Storsjo
4 * Copyright (c) 2013 Anssi Hannula
5 * Copyright (c) 2021 Nachiket Tarate
6 *
7 * This file is part of FFmpeg.
8 *
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 /**
25 * @file
26 * Apple HTTP Live Streaming demuxer
27 * https://www.rfc-editor.org/rfc/rfc8216.txt
28 */
29
30 #include "config_components.h"
31
32 #include "libavformat/http.h"
33 #include "libavutil/aes.h"
34 #include "libavutil/avstring.h"
35 #include "libavutil/avassert.h"
36 #include "libavutil/intreadwrite.h"
37 #include "libavutil/mathematics.h"
38 #include "libavutil/mem.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/dict.h"
41 #include "libavutil/time.h"
42 #include "avformat.h"
43 #include "demux.h"
44 #include "internal.h"
45 #include "avio_internal.h"
46 #include "id3v2.h"
47 #include "url.h"
48
49 #include "hls_sample_encryption.h"
50
51 #define INITIAL_BUFFER_SIZE 32768
52
53 #define MAX_FIELD_LEN 64
54 #define MAX_CHARACTERISTICS_LEN 512
55
56 #define MPEG_TIME_BASE 90000
57 #define MPEG_TIME_BASE_Q (AVRational){1, MPEG_TIME_BASE}
58
59 /*
60 * An apple http stream consists of a playlist with media segment files,
61 * played sequentially. There may be several playlists with the same
62 * video content, in different bandwidth variants, that are played in
63 * parallel (preferably only one bandwidth variant at a time). In this case,
64 * the user supplied the url to a main playlist that only lists the variant
65 * playlists.
66 *
67 * If the main playlist doesn't point at any variants, we still create
68 * one anonymous toplevel variant for this, to maintain the structure.
69 */
70
71 enum KeyType {
72 KEY_NONE,
73 KEY_AES_128,
74 KEY_SAMPLE_AES
75 };
76
77 struct segment {
78 int64_t duration;
79 int64_t url_offset;
80 int64_t size;
81 char *url;
82 char *key;
83 enum KeyType key_type;
84 uint8_t iv[16];
85 /* associated Media Initialization Section, treated as a segment */
86 struct segment *init_section;
87 };
88
89 struct rendition;
90
91 enum PlaylistType {
92 PLS_TYPE_UNSPECIFIED,
93 PLS_TYPE_EVENT,
94 PLS_TYPE_VOD
95 };
96
97 /*
98 * Each playlist has its own demuxer. If it currently is active,
99 * it has an open AVIOContext too, and potentially an AVPacket
100 * containing the next packet from this stream.
101 */
102 struct playlist {
103 char url[MAX_URL_SIZE];
104 FFIOContext pb;
105 uint8_t* read_buffer;
106 AVIOContext *input;
107 int input_read_done;
108 AVIOContext *input_next;
109 int input_next_requested;
110 AVFormatContext *parent;
111 int index;
112 AVFormatContext *ctx;
113 AVPacket *pkt;
114 int has_noheader_flag;
115
116 /* main demuxer streams associated with this playlist
117 * indexed by the subdemuxer stream indexes */
118 AVStream **main_streams;
119 int n_main_streams;
120
121 int finished;
122 enum PlaylistType type;
123 int64_t target_duration;
124 int64_t start_seq_no;
125 int time_offset_flag;
126 int64_t start_time_offset;
127 int n_segments;
128 struct segment **segments;
129 int needed;
130 int broken;
131 int64_t cur_seq_no;
132 int64_t last_seq_no;
133 int m3u8_hold_counters;
134 int64_t cur_seg_offset;
135 int64_t last_load_time;
136
137 /* Currently active Media Initialization Section */
138 struct segment *cur_init_section;
139 uint8_t *init_sec_buf;
140 unsigned int init_sec_buf_size;
141 unsigned int init_sec_data_len;
142 unsigned int init_sec_buf_read_offset;
143
144 char key_url[MAX_URL_SIZE];
145 uint8_t key[16];
146
147 /* ID3 timestamp handling (elementary audio streams have ID3 timestamps
148 * (and possibly other ID3 tags) in the beginning of each segment) */
149 int is_id3_timestamped; /* -1: not yet known */
150 int64_t id3_mpegts_timestamp; /* in mpegts tb */
151 int64_t id3_offset; /* in stream original tb */
152 uint8_t* id3_buf; /* temp buffer for id3 parsing */
153 unsigned int id3_buf_size;
154 AVDictionary *id3_initial; /* data from first id3 tag */
155 int id3_found; /* ID3 tag found at some point */
156 int id3_changed; /* ID3 tag data has changed at some point */
157 ID3v2ExtraMeta *id3_deferred_extra; /* stored here until subdemuxer is opened */
158
159 HLSAudioSetupInfo audio_setup_info;
160
161 int64_t seek_timestamp;
162 int seek_flags;
163 int seek_stream_index; /* into subdemuxer stream array */
164
165 /* Renditions associated with this playlist, if any.
166 * Alternative rendition playlists have a single rendition associated
167 * with them, and variant main Media Playlists may have
168 * multiple (playlist-less) renditions associated with them. */
169 int n_renditions;
170 struct rendition **renditions;
171
172 /* Media Initialization Sections (EXT-X-MAP) associated with this
173 * playlist, if any. */
174 int n_init_sections;
175 struct segment **init_sections;
176 int is_subtitle; /* Indicates if it's a subtitle playlist */
177 };
178
179 /*
180 * Renditions are e.g. alternative subtitle or audio streams.
181 * The rendition may either be an external playlist or it may be
182 * contained in the main Media Playlist of the variant (in which case
183 * playlist is NULL).
184 */
185 struct rendition {
186 enum AVMediaType type;
187 struct playlist *playlist;
188 char group_id[MAX_FIELD_LEN];
189 char language[MAX_FIELD_LEN];
190 char name[MAX_FIELD_LEN];
191 int disposition;
192 };
193
194 struct variant {
195 int bandwidth;
196
197 /* every variant contains at least the main Media Playlist in index 0 */
198 int n_playlists;
199 struct playlist **playlists;
200
201 char audio_group[MAX_FIELD_LEN];
202 char video_group[MAX_FIELD_LEN];
203 char subtitles_group[MAX_FIELD_LEN];
204 };
205
206 typedef struct HLSContext {
207 AVClass *class;
208 AVFormatContext *ctx;
209 int n_variants;
210 struct variant **variants;
211 int n_playlists;
212 struct playlist **playlists;
213 int n_renditions;
214 struct rendition **renditions;
215
216 int64_t cur_seq_no;
217 int m3u8_hold_counters;
218 int live_start_index;
219 int prefer_x_start;
220 int first_packet;
221 int64_t first_timestamp;
222 int64_t cur_timestamp;
223 AVIOInterruptCB *interrupt_callback;
224 AVDictionary *avio_opts;
225 AVDictionary *seg_format_opts;
226 char *allowed_extensions;
227 int extension_picky;
228 int max_reload;
229 int http_persistent;
230 int http_multiple;
231 int http_seekable;
232 int seg_max_retry;
233 AVIOContext *playlist_pb;
234 HLSCryptoContext crypto_ctx;
235 } HLSContext;
236
237 12 static void free_segment_dynarray(struct segment **segments, int n_segments)
238 {
239 int i;
240
2/2
✓ Branch 0 taken 65 times.
✓ Branch 1 taken 12 times.
 77 for (i = 0; i < n_segments; i++) {
241 65 av_freep(&segments[i]->key);
242 65 av_freep(&segments[i]->url);
243 65 av_freep(&segments[i]);
244 }
245 12 }
246
247 12 static void free_segment_list(struct playlist *pls)
248 {
249 12 free_segment_dynarray(pls->segments, pls->n_segments);
250 12 av_freep(&pls->segments);
251 12 pls->n_segments = 0;
252 12 }
253
254 12 static void free_init_section_list(struct playlist *pls)
255 {
256 int i;
257
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 for (i = 0; i < pls->n_init_sections; i++) {
258 ✗ av_freep(&pls->init_sections[i]->key);
259 ✗ av_freep(&pls->init_sections[i]->url);
260 ✗ av_freep(&pls->init_sections[i]);
261 }
262 12 av_freep(&pls->init_sections);
263 12 pls->n_init_sections = 0;
264 12 }
265
266 12 static void free_playlist_list(HLSContext *c)
267 {
268 int i;
269
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 12 times.
 24 for (i = 0; i < c->n_playlists; i++) {
270 12 struct playlist *pls = c->playlists[i];
271 12 free_segment_list(pls);
272 12 free_init_section_list(pls);
273 12 av_freep(&pls->main_streams);
274 12 av_freep(&pls->renditions);
275 12 av_freep(&pls->id3_buf);
276 12 av_dict_free(&pls->id3_initial);
277 12 ff_id3v2_free_extra_meta(&pls->id3_deferred_extra);
278 12 av_freep(&pls->init_sec_buf);
279 12 av_packet_free(&pls->pkt);
280 12 av_freep(&pls->pb.pub.buffer);
281 12 ff_format_io_close(c->ctx, &pls->input);
282 12 pls->input_read_done = 0;
283 12 ff_format_io_close(c->ctx, &pls->input_next);
284 12 pls->input_next_requested = 0;
285
1/2
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
 12 if (pls->ctx) {
286 12 pls->ctx->pb = NULL;
287 12 avformat_close_input(&pls->ctx);
288 }
289 12 av_free(pls);
290 }
291 12 av_freep(&c->playlists);
292 12 c->n_playlists = 0;
293 12 }
294
295 12 static void free_variant_list(HLSContext *c)
296 {
297 int i;
298
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 12 times.
 24 for (i = 0; i < c->n_variants; i++) {
299 12 struct variant *var = c->variants[i];
300 12 av_freep(&var->playlists);
301 12 av_free(var);
302 }
303 12 av_freep(&c->variants);
304 12 c->n_variants = 0;
305 12 }
306
307 12 static void free_rendition_list(HLSContext *c)
308 {
309 int i;
310
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 for (i = 0; i < c->n_renditions; i++)
311 ✗ av_freep(&c->renditions[i]);
312 12 av_freep(&c->renditions);
313 12 c->n_renditions = 0;
314 12 }
315
316 12 static struct playlist *new_playlist(HLSContext *c, const char *url,
317 const char *base)
318 {
319 12 struct playlist *pls = av_mallocz(sizeof(struct playlist));
320
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (!pls)
321 ✗ return NULL;
322 12 pls->pkt = av_packet_alloc();
323
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (!pls->pkt) {
324 ✗ av_free(pls);
325 ✗ return NULL;
326 }
327 12 ff_make_absolute_url(pls->url, sizeof(pls->url), base, url);
328
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (!pls->url[0]) {
329 ✗ av_packet_free(&pls->pkt);
330 ✗ av_free(pls);
331 ✗ return NULL;
332 }
333 12 pls->seek_timestamp = AV_NOPTS_VALUE;
334
335 12 pls->is_id3_timestamped = -1;
336 12 pls->id3_mpegts_timestamp = AV_NOPTS_VALUE;
337
338 12 dynarray_add(&c->playlists, &c->n_playlists, pls);
339 12 return pls;
340 }
341
342 struct variant_info {
343 char bandwidth[20];
344 /* variant group ids: */
345 char audio[MAX_FIELD_LEN];
346 char video[MAX_FIELD_LEN];
347 char subtitles[MAX_FIELD_LEN];
348 };
349
350 12 static struct variant *new_variant(HLSContext *c, struct variant_info *info,
351 const char *url, const char *base)
352 {
353 struct variant *var;
354 struct playlist *pls;
355
356 12 pls = new_playlist(c, url, base);
357
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (!pls)
358 ✗ return NULL;
359
360 12 var = av_mallocz(sizeof(struct variant));
361
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (!var)
362 ✗ return NULL;
363
364
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (info) {
365 ✗ var->bandwidth = atoi(info->bandwidth);
366 ✗ strcpy(var->audio_group, info->audio);
367 ✗ strcpy(var->video_group, info->video);
368 ✗ strcpy(var->subtitles_group, info->subtitles);
369 }
370
371 12 dynarray_add(&c->variants, &c->n_variants, var);
372 12 dynarray_add(&var->playlists, &var->n_playlists, pls);
373 12 return var;
374 }
375
376 ✗ static void handle_variant_args(struct variant_info *info, const char *key,
377 int key_len, char **dest, int *dest_len)
378 {
379 ✗ if (!strncmp(key, "BANDWIDTH=", key_len)) {
380 ✗ *dest = info->bandwidth;
381 ✗ *dest_len = sizeof(info->bandwidth);
382 ✗ } else if (!strncmp(key, "AUDIO=", key_len)) {
383 ✗ *dest = info->audio;
384 ✗ *dest_len = sizeof(info->audio);
385 ✗ } else if (!strncmp(key, "VIDEO=", key_len)) {
386 ✗ *dest = info->video;
387 ✗ *dest_len = sizeof(info->video);
388 ✗ } else if (!strncmp(key, "SUBTITLES=", key_len)) {
389 ✗ *dest = info->subtitles;
390 ✗ *dest_len = sizeof(info->subtitles);
391 }
392 ✗ }
393
394 struct key_info {
395 char uri[MAX_URL_SIZE];
396 char method[11];
397 char iv[35];
398 };
399
400 ✗ static void handle_key_args(struct key_info *info, const char *key,
401 int key_len, char **dest, int *dest_len)
402 {
403 ✗ if (!strncmp(key, "METHOD=", key_len)) {
404 ✗ *dest = info->method;
405 ✗ *dest_len = sizeof(info->method);
406 ✗ } else if (!strncmp(key, "URI=", key_len)) {
407 ✗ *dest = info->uri;
408 ✗ *dest_len = sizeof(info->uri);
409 ✗ } else if (!strncmp(key, "IV=", key_len)) {
410 ✗ *dest = info->iv;
411 ✗ *dest_len = sizeof(info->iv);
412 }
413 ✗ }
414
415 struct init_section_info {
416 char uri[MAX_URL_SIZE];
417 char byterange[32];
418 };
419
420 ✗ static struct segment *new_init_section(struct playlist *pls,
421 struct init_section_info *info,
422 const char *url_base)
423 {
424 struct segment *sec;
425 ✗ char tmp_str[MAX_URL_SIZE], *ptr = tmp_str;
426
427 ✗ if (!info->uri[0])
428 ✗ return NULL;
429
430 ✗ sec = av_mallocz(sizeof(*sec));
431 ✗ if (!sec)
432 ✗ return NULL;
433
434 ✗ if (!av_strncasecmp(info->uri, "data:", 5)) {
435 ✗ ptr = info->uri;
436 } else {
437 ✗ ff_make_absolute_url(tmp_str, sizeof(tmp_str), url_base, info->uri);
438 ✗ if (!tmp_str[0]) {
439 ✗ av_free(sec);
440 ✗ return NULL;
441 }
442 }
443 ✗ sec->url = av_strdup(ptr);
444 ✗ if (!sec->url) {
445 ✗ av_free(sec);
446 ✗ return NULL;
447 }
448
449 ✗ if (info->byterange[0]) {
450 ✗ sec->size = strtoll(info->byterange, NULL, 10);
451 ✗ ptr = strchr(info->byterange, '@');
452 ✗ if (ptr)
453 ✗ sec->url_offset = strtoll(ptr+1, NULL, 10);
454 } else {
455 /* the entire file is the init section */
456 ✗ sec->size = -1;
457 }
458
459 ✗ dynarray_add(&pls->init_sections, &pls->n_init_sections, sec);
460
461 ✗ return sec;
462 }
463
464 ✗ static void handle_init_section_args(struct init_section_info *info, const char *key,
465 int key_len, char **dest, int *dest_len)
466 {
467 ✗ if (!strncmp(key, "URI=", key_len)) {
468 ✗ *dest = info->uri;
469 ✗ *dest_len = sizeof(info->uri);
470 ✗ } else if (!strncmp(key, "BYTERANGE=", key_len)) {
471 ✗ *dest = info->byterange;
472 ✗ *dest_len = sizeof(info->byterange);
473 }
474 ✗ }
475
476 struct rendition_info {
477 char type[16];
478 char uri[MAX_URL_SIZE];
479 char group_id[MAX_FIELD_LEN];
480 char language[MAX_FIELD_LEN];
481 char assoc_language[MAX_FIELD_LEN];
482 char name[MAX_FIELD_LEN];
483 char defaultr[4];
484 char forced[4];
485 char characteristics[MAX_CHARACTERISTICS_LEN];
486 };
487
488 ✗ static struct rendition *new_rendition(HLSContext *c, struct rendition_info *info,
489 const char *url_base)
490 {
491 struct rendition *rend;
492 ✗ enum AVMediaType type = AVMEDIA_TYPE_UNKNOWN;
493 char *characteristic;
494 char *chr_ptr;
495 char *saveptr;
496
497 ✗ if (!strcmp(info->type, "AUDIO"))
498 ✗ type = AVMEDIA_TYPE_AUDIO;
499 ✗ else if (!strcmp(info->type, "VIDEO"))
500 ✗ type = AVMEDIA_TYPE_VIDEO;
501 ✗ else if (!strcmp(info->type, "SUBTITLES"))
502 ✗ type = AVMEDIA_TYPE_SUBTITLE;
503 ✗ else if (!strcmp(info->type, "CLOSED-CAPTIONS"))
504 /* CLOSED-CAPTIONS is ignored since we do not support CEA-608 CC in
505 * AVC SEI RBSP anyway */
506 ✗ return NULL;
507
508 ✗ if (type == AVMEDIA_TYPE_UNKNOWN) {
509 ✗ av_log(c->ctx, AV_LOG_WARNING, "Can't support the type: %s\n", info->type);
510 ✗ return NULL;
511 }
512
513 /* URI is mandatory for subtitles as per spec */
514 ✗ if (type == AVMEDIA_TYPE_SUBTITLE && !info->uri[0]) {
515 ✗ av_log(c->ctx, AV_LOG_ERROR, "The URI tag is REQUIRED for subtitle.\n");
516 ✗ return NULL;
517 }
518
519 ✗ rend = av_mallocz(sizeof(struct rendition));
520 ✗ if (!rend)
521 ✗ return NULL;
522
523 ✗ dynarray_add(&c->renditions, &c->n_renditions, rend);
524
525 ✗ rend->type = type;
526 ✗ strcpy(rend->group_id, info->group_id);
527 ✗ strcpy(rend->language, info->language);
528 ✗ strcpy(rend->name, info->name);
529
530 /* add the playlist if this is an external rendition */
531 ✗ if (info->uri[0]) {
532 ✗ rend->playlist = new_playlist(c, info->uri, url_base);
533 ✗ if (rend->playlist) {
534 ✗ if (type == AVMEDIA_TYPE_SUBTITLE) {
535 ✗ rend->playlist->is_subtitle = 1;
536 ✗ rend->playlist->is_id3_timestamped = 0;
537 }
538 ✗ dynarray_add(&rend->playlist->renditions,
539 &rend->playlist->n_renditions, rend);
540 }
541 }
542
543 ✗ if (info->assoc_language[0]) {
544 ✗ size_t langlen = strlen(rend->language);
545 ✗ if (langlen < sizeof(rend->language) - 3) {
546 size_t assoc_len;
547 ✗ rend->language[langlen] = ',';
548 ✗ assoc_len = av_strlcpy(rend->language + langlen + 1,
549 ✗ info->assoc_language,
550 sizeof(rend->language) - langlen - 1);
551 ✗ if (langlen + assoc_len + 2 > sizeof(rend->language)) // truncation occurred
552 ✗ av_log(c->ctx, AV_LOG_WARNING, "Truncated rendition language: %s\n",
553 ✗ info->assoc_language);
554 }
555 }
556
557 ✗ if (!strcmp(info->defaultr, "YES"))
558 ✗ rend->disposition |= AV_DISPOSITION_DEFAULT;
559 ✗ if (!strcmp(info->forced, "YES"))
560 ✗ rend->disposition |= AV_DISPOSITION_FORCED;
561
562 ✗ chr_ptr = info->characteristics;
563 ✗ while ((characteristic = av_strtok(chr_ptr, ",", &saveptr))) {
564 ✗ if (!strcmp(characteristic, "public.accessibility.describes-music-and-sound"))
565 ✗ rend->disposition |= AV_DISPOSITION_HEARING_IMPAIRED;
566 ✗ else if (!strcmp(characteristic, "public.accessibility.describes-video"))
567 ✗ rend->disposition |= AV_DISPOSITION_VISUAL_IMPAIRED;
568
569 ✗ chr_ptr = NULL;
570 }
571
572 ✗ return rend;
573 }
574
575 ✗ static void handle_rendition_args(struct rendition_info *info, const char *key,
576 int key_len, char **dest, int *dest_len)
577 {
578 ✗ if (!strncmp(key, "TYPE=", key_len)) {
579 ✗ *dest = info->type;
580 ✗ *dest_len = sizeof(info->type);
581 ✗ } else if (!strncmp(key, "URI=", key_len)) {
582 ✗ *dest = info->uri;
583 ✗ *dest_len = sizeof(info->uri);
584 ✗ } else if (!strncmp(key, "GROUP-ID=", key_len)) {
585 ✗ *dest = info->group_id;
586 ✗ *dest_len = sizeof(info->group_id);
587 ✗ } else if (!strncmp(key, "LANGUAGE=", key_len)) {
588 ✗ *dest = info->language;
589 ✗ *dest_len = sizeof(info->language);
590 ✗ } else if (!strncmp(key, "ASSOC-LANGUAGE=", key_len)) {
591 ✗ *dest = info->assoc_language;
592 ✗ *dest_len = sizeof(info->assoc_language);
593 ✗ } else if (!strncmp(key, "NAME=", key_len)) {
594 ✗ *dest = info->name;
595 ✗ *dest_len = sizeof(info->name);
596 ✗ } else if (!strncmp(key, "DEFAULT=", key_len)) {
597 ✗ *dest = info->defaultr;
598 ✗ *dest_len = sizeof(info->defaultr);
599 ✗ } else if (!strncmp(key, "FORCED=", key_len)) {
600 ✗ *dest = info->forced;
601 ✗ *dest_len = sizeof(info->forced);
602 ✗ } else if (!strncmp(key, "CHARACTERISTICS=", key_len)) {
603 ✗ *dest = info->characteristics;
604 ✗ *dest_len = sizeof(info->characteristics);
605 }
606 /*
607 * ignored:
608 * - AUTOSELECT: client may autoselect based on e.g. system language
609 * - INSTREAM-ID: EIA-608 closed caption number ("CC1".."CC4")
610 */
611 ✗ }
612
613 /* used by parse_playlist to allocate a new variant+playlist when the
614 * playlist is detected to be a Media Playlist (not Master Playlist)
615 * and we have no parent Master Playlist (parsing of which would have
616 * allocated the variant and playlist already)
617 * *pls == NULL => Master Playlist or parentless Media Playlist
618 * *pls != NULL => parented Media Playlist, playlist+variant allocated */
619 89 static int ensure_playlist(HLSContext *c, struct playlist **pls, const char *url)
620 {
621
2/2
✓ Branch 0 taken 77 times.
✓ Branch 1 taken 12 times.
 89 if (*pls)
622 77 return 0;
623
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 12 times.
 12 if (!new_variant(c, NULL, url, NULL))
624 ✗ return AVERROR(ENOMEM);
625 12 *pls = c->playlists[c->n_playlists - 1];
626 12 return 0;
627 }
628
629 ✗ static int open_url_keepalive(AVFormatContext *s, AVIOContext **pb,
630 const char *url, AVDictionary **options)
631 {
632 #if !CONFIG_HTTP_PROTOCOL
633 return AVERROR_PROTOCOL_NOT_FOUND;
634 #else
635 int ret;
636 ✗ URLContext *uc = ffio_geturlcontext(*pb);
637 ✗ av_assert0(uc);
638 ✗ (*pb)->eof_reached = 0;
639 ✗ ret = ff_http_do_new_request2(uc, url, options);
640 ✗ if (ret < 0) {
641 ✗ ff_format_io_close(s, pb);
642 }
643 ✗ return ret;
644 #endif
645 }
646
647 61 static int open_url(AVFormatContext *s, AVIOContext **pb, const char *url,
648 AVDictionary **opts, AVDictionary *opts2, int *is_http_out)
649 {
650 61 HLSContext *c = s->priv_data;
651 61 AVDictionary *tmp = NULL;
652 61 const char *proto_name = NULL;
653 int ret;
654 61 int is_http = 0;
655
656
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 61 times.
 61 if (av_strstart(url, "crypto", NULL)) {
657 ✗ if (url[6] == '+' || url[6] == ':')
658 ✗ proto_name = avio_find_protocol_name(url + 7);
659
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 61 times.
 61 } else if (av_strstart(url, "data", NULL)) {
660 ✗ if (url[4] == '+' || url[4] == ':')
661 ✗ proto_name = avio_find_protocol_name(url + 5);
662 }
663
664
1/2
✓ Branch 0 taken 61 times.
✗ Branch 1 not taken.
 61 if (!proto_name)
665 61 proto_name = avio_find_protocol_name(url);
666
667
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 61 times.
 61 if (!proto_name)
668 ✗ return AVERROR_INVALIDDATA;
669
670 // only http(s) & file are allowed
671
1/2
✓ Branch 1 taken 61 times.
✗ Branch 2 not taken.
 61 if (av_strstart(proto_name, "file", NULL)) {
672
2/4
✓ Branch 0 taken 61 times.
✗ Branch 1 not taken.
✗ Branch 3 not taken.
✓ Branch 4 taken 61 times.
 61 if (strcmp(c->allowed_extensions, "ALL") && !av_match_ext(url, c->allowed_extensions)) {
673 ✗ av_log(s, AV_LOG_ERROR,
674 "Filename extension of \'%s\' is not a common multimedia extension, blocked for security reasons.\n"
675 "If you wish to override this adjust allowed_extensions, you can set it to \'ALL\' to allow all\n",
676 url);
677 ✗ return AVERROR_INVALIDDATA;
678 }
679 ✗ } else if (av_strstart(proto_name, "http", NULL)) {
680 ✗ is_http = 1;
681 ✗ } else if (av_strstart(proto_name, "data", NULL)) {
682 ;
683 } else
684 ✗ return AVERROR_INVALIDDATA;
685
686
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 61 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 61 if (!strncmp(proto_name, url, strlen(proto_name)) && url[strlen(proto_name)] == ':')
687 ;
688
1/6
✗ Branch 1 not taken.
✓ Branch 2 taken 61 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
 61 else if (av_strstart(url, "crypto", NULL) && !strncmp(proto_name, url + 7, strlen(proto_name)) && url[7 + strlen(proto_name)] == ':')
689 ;
690
1/6
✗ Branch 1 not taken.
✓ Branch 2 taken 61 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
 61 else if (av_strstart(url, "data", NULL) && !strncmp(proto_name, url + 5, strlen(proto_name)) && url[5 + strlen(proto_name)] == ':')
691 ;
692
2/4
✓ Branch 0 taken 61 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 61 times.
 61 else if (strcmp(proto_name, "file") || !strncmp(url, "file,", 5))
693 ✗ return AVERROR_INVALIDDATA;
694
695 61 av_dict_copy(&tmp, *opts, 0);
696 61 av_dict_copy(&tmp, opts2, 0);
697
698
1/6
✗ Branch 0 not taken.
✓ Branch 1 taken 61 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 61 if (is_http && c->http_persistent && *pb) {
699 ✗ ret = open_url_keepalive(c->ctx, pb, url, &tmp);
700 ✗ if (ret == AVERROR_EXIT) {
701 ✗ av_dict_free(&tmp);
702 ✗ return ret;
703 ✗ } else if (ret < 0) {
704 ✗ if (ret != AVERROR_EOF)
705 ✗ av_log(s, AV_LOG_WARNING,
706 "keepalive request failed for '%s' with error: '%s' when opening url, retrying with new connection\n",
707 ✗ url, av_err2str(ret));
708 ✗ av_dict_copy(&tmp, *opts, 0);
709 ✗ av_dict_copy(&tmp, opts2, 0);
710 ✗ ret = s->io_open(s, pb, url, AVIO_FLAG_READ, &tmp);
711 }
712 } else {
713 61 ret = s->io_open(s, pb, url, AVIO_FLAG_READ, &tmp);
714 }
715
1/2
✓ Branch 0 taken 61 times.
✗ Branch 1 not taken.
 61 if (ret >= 0) {
716 // update cookies on http response with setcookies.
717 61 char *new_cookies = NULL;
718
719
1/2
✓ Branch 0 taken 61 times.
✗ Branch 1 not taken.
 61 if (!(s->flags & AVFMT_FLAG_CUSTOM_IO))
720 61 av_opt_get(*pb, "cookies", AV_OPT_SEARCH_CHILDREN, (uint8_t**)&new_cookies);
721
722
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 61 times.
 61 if (new_cookies)
723 ✗ av_dict_set(opts, "cookies", new_cookies, AV_DICT_DONT_STRDUP_VAL);
724 }
725
726 61 av_dict_free(&tmp);
727
728
1/2
✓ Branch 0 taken 61 times.
✗ Branch 1 not taken.
 61 if (is_http_out)
729 61 *is_http_out = is_http;
730
731 61 return ret;
732 }
733
734 130 static int test_segment(AVFormatContext *s, const AVInputFormat *in_fmt, struct playlist *pls, struct segment *seg)
735 {
736 130 HLSContext *c = s->priv_data;
737 130 int matchA = 3;
738 130 int matchF = 0;
739
740
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 130 times.
 130 if (!c->extension_picky)
741 ✗ return 0;
742
743
1/2
✓ Branch 0 taken 130 times.
✗ Branch 1 not taken.
 130 if (strcmp(c->allowed_extensions, "ALL"))
744 260 matchA = av_match_ext (seg->url, c->allowed_extensions)
745
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 130 times.
 130 + 2*(ff_match_url_ext(seg->url, c->allowed_extensions) > 0);
746
747
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 130 times.
 130 if (!matchA) {
748 ✗ av_log(s, AV_LOG_ERROR, "URL %s is not in allowed_extensions\n", seg->url);
749 ✗ return AVERROR_INVALIDDATA;
750 }
751
752
2/2
✓ Branch 0 taken 65 times.
✓ Branch 1 taken 65 times.
 130 if (in_fmt) {
753
2/2
✓ Branch 0 taken 3 times.
✓ Branch 1 taken 62 times.
 65 if (in_fmt->extensions) {
754 3 matchF = av_match_ext( seg->url, in_fmt->extensions)
755
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 3 times.
 3 + 2*(ff_match_url_ext(seg->url, in_fmt->extensions) > 0);
756
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 3 times.
 3 if(av_match_name("mp4", in_fmt->name)) {
757 ✗ matchF |= av_match_ext( seg->url, "ts,m2t,m2ts,mts,mpg,m4s,mpeg,mpegts")
758 ✗ + 2*(ff_match_url_ext(seg->url, "ts,m2t,m2ts,mts,mpg,m4s,mpeg,mpegts") > 0);
759 }
760
1/2
✓ Branch 0 taken 62 times.
✗ Branch 1 not taken.
 62 } else if (!strcmp(in_fmt->name, "mpegts")) {
761 124 matchF = av_match_ext( seg->url, "ts,m2t,m2ts,mts,mpg,m4s,mpeg,mpegts")
762
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 62 times.
 62 + 2*(ff_match_url_ext(seg->url, "ts,m2t,m2ts,mts,mpg,m4s,mpeg,mpegts") > 0);
763 ✗ } else if (!strcmp(in_fmt->name, "webvtt")) {
764 ✗ matchF = av_match_ext( seg->url, "vtt,webvtt")
765 ✗ + 2*(ff_match_url_ext(seg->url, "vtt,webvtt") > 0);
766 }
767
768
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 65 times.
 65 if (!(matchA & matchF)) {
769 ✗ av_log(s, AV_LOG_ERROR, "detected format %s extension %s mismatches allowed extensions in url %s\n", in_fmt->name, in_fmt->extensions ? in_fmt->extensions : "none", seg->url);
770 ✗ return AVERROR_INVALIDDATA;
771 }
772 }
773
774 130 return 0;
775 }
776
777 12 static int parse_playlist(HLSContext *c, const char *url,
778 struct playlist *pls, AVIOContext *in)
779 {
780 12 int ret = 0, is_segment = 0, is_variant = 0;
781 12 int64_t duration = 0;
782 12 enum KeyType key_type = KEY_NONE;
783 12 uint8_t iv[16] = "";
784 12 int has_iv = 0;
785 12 char key[MAX_URL_SIZE] = "";
786 char line[MAX_URL_SIZE];
787 const char *ptr;
788 12 int close_in = 0;
789 12 int64_t seg_offset = 0;
790 12 int64_t seg_size = -1;
791 12 uint8_t *new_url = NULL;
792 struct variant_info variant_info;
793 char tmp_str[MAX_URL_SIZE];
794 12 struct segment *cur_init_section = NULL;
795 12 int is_http = av_strstart(url, "http", NULL);
796 12 struct segment **prev_segments = NULL;
797 12 int prev_n_segments = 0;
798 12 int64_t prev_start_seq_no = -1;
799
800
1/8
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✗ Branch 7 not taken.
 12 if (is_http && !in && c->http_persistent && c->playlist_pb) {
801 ✗ in = c->playlist_pb;
802 ✗ ret = open_url_keepalive(c->ctx, &c->playlist_pb, url, NULL);
803 ✗ if (ret == AVERROR_EXIT) {
804 ✗ return ret;
805 ✗ } else if (ret < 0) {
806 ✗ if (ret != AVERROR_EOF)
807 ✗ av_log(c->ctx, AV_LOG_WARNING,
808 "keepalive request failed for '%s' with error: '%s' when parsing playlist\n",
809 ✗ url, av_err2str(ret));
810 ✗ in = NULL;
811 }
812 }
813
814
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (!in) {
815 ✗ AVDictionary *opts = NULL;
816 ✗ av_dict_copy(&opts, c->avio_opts, 0);
817
818 ✗ if (c->http_persistent)
819 ✗ av_dict_set(&opts, "multiple_requests", "1", 0);
820
821 ✗ ret = c->ctx->io_open(c->ctx, &in, url, AVIO_FLAG_READ, &opts);
822 ✗ av_dict_free(&opts);
823 ✗ if (ret < 0)
824 ✗ return ret;
825
826 ✗ if (is_http && c->http_persistent)
827 ✗ c->playlist_pb = in;
828 else
829 ✗ close_in = 1;
830 }
831
832
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 12 times.
 12 if (av_opt_get(in, "location", AV_OPT_SEARCH_CHILDREN, &new_url) >= 0)
833 ✗ url = new_url;
834
835 12 ff_get_chomp_line(in, line, sizeof(line));
836
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (strcmp(line, "#EXTM3U")) {
837 ✗ ret = AVERROR_INVALIDDATA;
838 ✗ goto fail;
839 }
840
841
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (pls) {
842 ✗ prev_start_seq_no = pls->start_seq_no;
843 ✗ prev_segments = pls->segments;
844 ✗ prev_n_segments = pls->n_segments;
845 ✗ pls->segments = NULL;
846 ✗ pls->n_segments = 0;
847
848 ✗ pls->finished = 0;
849 ✗ pls->type = PLS_TYPE_UNSPECIFIED;
850 }
851
2/2
✓ Branch 1 taken 213 times.
✓ Branch 2 taken 12 times.
 225 while (!avio_feof(in)) {
852 213 ff_get_chomp_line(in, line, sizeof(line));
853
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 213 times.
 213 if (av_strstart(line, "#EXT-X-STREAM-INF:", &ptr)) {
854 ✗ is_variant = 1;
855 ✗ memset(&variant_info, 0, sizeof(variant_info));
856 ✗ ff_parse_key_value(ptr, (ff_parse_key_val_cb) handle_variant_args,
857 &variant_info);
858
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 213 times.
 213 } else if (av_strstart(line, "#EXT-X-KEY:", &ptr)) {
859 ✗ struct key_info info = {{0}};
860 ✗ ff_parse_key_value(ptr, (ff_parse_key_val_cb) handle_key_args,
861 &info);
862 ✗ key_type = KEY_NONE;
863 ✗ has_iv = 0;
864 ✗ if (!strcmp(info.method, "AES-128"))
865 ✗ key_type = KEY_AES_128;
866 ✗ if (!strcmp(info.method, "SAMPLE-AES"))
867 ✗ key_type = KEY_SAMPLE_AES;
868 ✗ if (!av_strncasecmp(info.iv, "0x", 2)) {
869 ✗ ff_hex_to_data(iv, info.iv + 2);
870 ✗ has_iv = 1;
871 }
872 ✗ av_strlcpy(key, info.uri, sizeof(key));
873
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 213 times.
 213 } else if (av_strstart(line, "#EXT-X-MEDIA:", &ptr)) {
874 ✗ struct rendition_info info = {{0}};
875 ✗ ff_parse_key_value(ptr, (ff_parse_key_val_cb) handle_rendition_args,
876 &info);
877 ✗ new_rendition(c, &info, url);
878
2/2
✓ Branch 1 taken 12 times.
✓ Branch 2 taken 201 times.
 213 } else if (av_strstart(line, "#EXT-X-TARGETDURATION:", &ptr)) {
879 int64_t t;
880 12 ret = ensure_playlist(c, &pls, url);
881
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (ret < 0)
882 ✗ goto fail;
883 12 t = strtoll(ptr, NULL, 10);
884
2/4
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 12 times.
 12 if (t < 0 || t >= INT64_MAX / AV_TIME_BASE) {
885 ✗ ret = AVERROR_INVALIDDATA;
886 ✗ goto fail;
887 }
888 12 pls->target_duration = t * AV_TIME_BASE;
889
2/2
✓ Branch 1 taken 12 times.
✓ Branch 2 taken 189 times.
 201 } else if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
890 uint64_t seq_no;
891 12 ret = ensure_playlist(c, &pls, url);
892
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (ret < 0)
893 ✗ goto fail;
894 12 seq_no = strtoull(ptr, NULL, 10);
895
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (seq_no > INT64_MAX/2) {
896 ✗ av_log(c->ctx, AV_LOG_DEBUG, "MEDIA-SEQUENCE higher than "
897 "INT64_MAX/2, mask out the highest bit\n");
898 ✗ seq_no &= INT64_MAX/2;
899 }
900 12 pls->start_seq_no = seq_no;
901
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 189 times.
 189 } else if (av_strstart(line, "#EXT-X-PLAYLIST-TYPE:", &ptr)) {
902 ✗ ret = ensure_playlist(c, &pls, url);
903 ✗ if (ret < 0)
904 ✗ goto fail;
905 ✗ if (!strcmp(ptr, "EVENT"))
906 ✗ pls->type = PLS_TYPE_EVENT;
907 ✗ else if (!strcmp(ptr, "VOD"))
908 ✗ pls->type = PLS_TYPE_VOD;
909
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 189 times.
 189 } else if (av_strstart(line, "#EXT-X-MAP:", &ptr)) {
910 ✗ struct init_section_info info = {{0}};
911 ✗ ret = ensure_playlist(c, &pls, url);
912 ✗ if (ret < 0)
913 ✗ goto fail;
914 ✗ ff_parse_key_value(ptr, (ff_parse_key_val_cb) handle_init_section_args,
915 &info);
916 ✗ cur_init_section = new_init_section(pls, &info, url);
917 ✗ if (!cur_init_section) {
918 ✗ ret = AVERROR(ENOMEM);
919 ✗ goto fail;
920 }
921 ✗ cur_init_section->key_type = key_type;
922 ✗ if (has_iv) {
923 ✗ memcpy(cur_init_section->iv, iv, sizeof(iv));
924 } else {
925 ✗ int64_t seq = pls->start_seq_no + pls->n_segments;
926 ✗ memset(cur_init_section->iv, 0, sizeof(cur_init_section->iv));
927 ✗ AV_WB64(cur_init_section->iv + 8, seq);
928 }
929
930 ✗ if (key_type != KEY_NONE) {
931 ✗ ff_make_absolute_url(tmp_str, sizeof(tmp_str), url, key);
932 ✗ if (!tmp_str[0]) {
933 ✗ av_free(cur_init_section);
934 ✗ ret = AVERROR_INVALIDDATA;
935 ✗ goto fail;
936 }
937 ✗ cur_init_section->key = av_strdup(tmp_str);
938 ✗ if (!cur_init_section->key) {
939 ✗ av_free(cur_init_section);
940 ✗ ret = AVERROR(ENOMEM);
941 ✗ goto fail;
942 }
943 } else {
944 ✗ cur_init_section->key = NULL;
945 }
946
947
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 189 times.
 189 } else if (av_strstart(line, "#EXT-X-START:", &ptr)) {
948 ✗ const char *time_offset_value = NULL;
949 ✗ ret = ensure_playlist(c, &pls, url);
950 ✗ if (ret < 0) {
951 ✗ goto fail;
952 }
953 ✗ if (av_strstart(ptr, "TIME-OFFSET=", &time_offset_value)) {
954 ✗ float offset = strtof(time_offset_value, NULL);
955 ✗ pls->start_time_offset = offset * AV_TIME_BASE;
956 ✗ pls->time_offset_flag = 1;
957 } else {
958 ✗ av_log(c->ctx, AV_LOG_WARNING, "#EXT-X-START value is"
959 "invalid, it will be ignored");
960 ✗ continue;
961 }
962
2/2
✓ Branch 1 taken 11 times.
✓ Branch 2 taken 178 times.
 189 } else if (av_strstart(line, "#EXT-X-ENDLIST", &ptr)) {
963
1/2
✓ Branch 0 taken 11 times.
✗ Branch 1 not taken.
 11 if (pls)
964 11 pls->finished = 1;
965
2/2
✓ Branch 1 taken 65 times.
✓ Branch 2 taken 113 times.
 178 } else if (av_strstart(line, "#EXTINF:", &ptr)) {
966 65 is_segment = 1;
967 65 duration = atof(ptr) * AV_TIME_BASE;
968
2/2
✓ Branch 1 taken 20 times.
✓ Branch 2 taken 93 times.
 113 } else if (av_strstart(line, "#EXT-X-BYTERANGE:", &ptr)) {
969 20 seg_size = strtoll(ptr, NULL, 10);
970 20 ptr = strchr(ptr, '@');
971
1/2
✓ Branch 0 taken 20 times.
✗ Branch 1 not taken.
 20 if (ptr)
972 20 seg_offset = strtoll(ptr+1, NULL, 10);
973
2/2
✓ Branch 1 taken 16 times.
✓ Branch 2 taken 77 times.
 93 } else if (av_strstart(line, "#", NULL)) {
974 16 av_log(c->ctx, AV_LOG_VERBOSE, "Skip ('%s')\n", line);
975 16 continue;
976
2/2
✓ Branch 0 taken 65 times.
✓ Branch 1 taken 12 times.
 77 } else if (line[0]) {
977
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 65 times.
 65 if (is_variant) {
978 ✗ if (!new_variant(c, &variant_info, line, url)) {
979 ✗ ret = AVERROR(ENOMEM);
980 ✗ goto fail;
981 }
982 ✗ is_variant = 0;
983 }
984
1/2
✓ Branch 0 taken 65 times.
✗ Branch 1 not taken.
 65 if (is_segment) {
985 struct segment *seg;
986 65 ret = ensure_playlist(c, &pls, url);
987
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 65 times.
 65 if (ret < 0)
988 ✗ goto fail;
989 65 seg = av_malloc(sizeof(struct segment));
990
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 65 times.
 65 if (!seg) {
991 ✗ ret = AVERROR(ENOMEM);
992 ✗ goto fail;
993 }
994
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 65 times.
 65 if (has_iv) {
995 ✗ memcpy(seg->iv, iv, sizeof(iv));
996 } else {
997 65 uint64_t seq = pls->start_seq_no + (uint64_t)pls->n_segments;
998 65 memset(seg->iv, 0, sizeof(seg->iv));
999 65 AV_WB64(seg->iv + 8, seq);
1000 }
1001
1002
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 65 times.
 65 if (key_type != KEY_NONE) {
1003 ✗ ff_make_absolute_url(tmp_str, sizeof(tmp_str), url, key);
1004 ✗ if (!tmp_str[0]) {
1005 ✗ ret = AVERROR_INVALIDDATA;
1006 ✗ av_free(seg);
1007 ✗ goto fail;
1008 }
1009 ✗ seg->key = av_strdup(tmp_str);
1010 ✗ if (!seg->key) {
1011 ✗ av_free(seg);
1012 ✗ ret = AVERROR(ENOMEM);
1013 ✗ goto fail;
1014 }
1015 } else {
1016 65 seg->key = NULL;
1017 }
1018
1019 65 ff_make_absolute_url(tmp_str, sizeof(tmp_str), url, line);
1020
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 65 times.
 65 if (!tmp_str[0]) {
1021 ✗ ret = AVERROR_INVALIDDATA;
1022 ✗ if (seg->key)
1023 ✗ av_free(seg->key);
1024 ✗ av_free(seg);
1025 ✗ goto fail;
1026 }
1027 65 seg->url = av_strdup(tmp_str);
1028
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 65 times.
 65 if (!seg->url) {
1029 ✗ av_free(seg->key);
1030 ✗ av_free(seg);
1031 ✗ ret = AVERROR(ENOMEM);
1032 ✗ goto fail;
1033 }
1034
1035
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 65 times.
 65 ret = test_segment(c->ctx, pls->ctx ? pls->ctx->iformat : NULL, pls, seg);
1036
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 65 times.
 65 if (ret < 0) {
1037 ✗ av_free(seg->url);
1038 ✗ av_free(seg->key);
1039 ✗ av_free(seg);
1040 ✗ goto fail;
1041 }
1042
1043
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 65 times.
 65 if (duration < 0.001 * AV_TIME_BASE) {
1044 ✗ av_log(c->ctx, AV_LOG_WARNING, "Cannot get correct #EXTINF value of segment %s,"
1045 " set to default value to 1ms.\n", seg->url);
1046 ✗ duration = 0.001 * AV_TIME_BASE;
1047 }
1048 65 seg->duration = duration;
1049 65 seg->key_type = key_type;
1050 65 dynarray_add(&pls->segments, &pls->n_segments, seg);
1051 65 is_segment = 0;
1052
1053 65 seg->size = seg_size;
1054
2/2
✓ Branch 0 taken 20 times.
✓ Branch 1 taken 45 times.
 65 if (seg_size >= 0) {
1055 20 seg->url_offset = seg_offset;
1056 20 seg_offset += seg_size;
1057 20 seg_size = -1;
1058 } else {
1059 45 seg->url_offset = 0;
1060 45 seg_offset = 0;
1061 }
1062
1063 65 seg->init_section = cur_init_section;
1064 }
1065 }
1066 }
1067
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (prev_segments) {
1068 ✗ if (pls->start_seq_no > prev_start_seq_no && c->first_timestamp != AV_NOPTS_VALUE) {
1069 ✗ int64_t prev_timestamp = c->first_timestamp;
1070 int i;
1071 ✗ int64_t diff = pls->start_seq_no - prev_start_seq_no;
1072 ✗ for (i = 0; i < prev_n_segments && i < diff; i++) {
1073 ✗ c->first_timestamp += prev_segments[i]->duration;
1074 }
1075 ✗ av_log(c->ctx, AV_LOG_DEBUG, "Media sequence change (%"PRId64" -> %"PRId64")"
1076 " reflected in first_timestamp: %"PRId64" -> %"PRId64"\n",
1077 ✗ prev_start_seq_no, pls->start_seq_no,
1078 prev_timestamp, c->first_timestamp);
1079 ✗ } else if (pls->start_seq_no < prev_start_seq_no) {
1080 ✗ av_log(c->ctx, AV_LOG_WARNING, "Media sequence changed unexpectedly: %"PRId64" -> %"PRId64"\n",
1081 ✗ prev_start_seq_no, pls->start_seq_no);
1082 }
1083 ✗ free_segment_dynarray(prev_segments, prev_n_segments);
1084 ✗ av_freep(&prev_segments);
1085 }
1086
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (pls)
1087 12 pls->last_load_time = av_gettime_relative();
1088
1089 ✗ fail:
1090 12 av_free(new_url);
1091
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (close_in)
1092 ✗ ff_format_io_close(c->ctx, &in);
1093 12 c->ctx->ctx_flags = c->ctx->ctx_flags & ~(unsigned)AVFMTCTX_UNSEEKABLE;
1094
2/4
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 12 times.
✗ Branch 3 not taken.
 12 if (!c->n_variants || !c->variants[0]->n_playlists ||
1095
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 11 times.
 12 !(c->variants[0]->playlists[0]->finished ||
1096
1/2
✓ Branch 0 taken 1 times.
✗ Branch 1 not taken.
 1 c->variants[0]->playlists[0]->type == PLS_TYPE_EVENT))
1097 1 c->ctx->ctx_flags |= AVFMTCTX_UNSEEKABLE;
1098 12 return ret;
1099 }
1100
1101 7138 static struct segment *current_segment(struct playlist *pls)
1102 {
1103 7138 int64_t n = pls->cur_seq_no - pls->start_seq_no;
1104
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 7136 times.
 7138 if (n >= pls->n_segments)
1105 2 return NULL;
1106 7136 return pls->segments[n];
1107 }
1108
1109 366 static struct segment *next_segment(struct playlist *pls)
1110 {
1111 366 int64_t n = pls->cur_seq_no - pls->start_seq_no + 1;
1112
2/2
✓ Branch 0 taken 72 times.
✓ Branch 1 taken 294 times.
 366 if (n >= pls->n_segments)
1113 72 return NULL;
1114 294 return pls->segments[n];
1115 }
1116
1117 366 static int read_from_url(struct playlist *pls, struct segment *seg,
1118 uint8_t *buf, int buf_size)
1119 {
1120 int ret;
1121
1122 /* limit read if the segment was only a part of a file */
1123
2/2
✓ Branch 0 taken 100 times.
✓ Branch 1 taken 266 times.
 366 if (seg->size >= 0)
1124 100 buf_size = FFMIN(buf_size, seg->size - pls->cur_seg_offset);
1125
1126 366 ret = avio_read(pls->input, buf, buf_size);
1127
2/2
✓ Branch 0 taken 307 times.
✓ Branch 1 taken 59 times.
 366 if (ret > 0)
1128 307 pls->cur_seg_offset += ret;
1129
1130 366 return ret;
1131 }
1132
1133 /* Parse the raw ID3 data and pass contents to caller */
1134 ✗ static void parse_id3(AVFormatContext *s, AVIOContext *pb,
1135 AVDictionary **metadata, int64_t *dts, HLSAudioSetupInfo *audio_setup_info,
1136 ID3v2ExtraMetaAPIC **apic, ID3v2ExtraMeta **extra_meta)
1137 {
1138 static const char id3_priv_owner_ts[] = "com.apple.streaming.transportStreamTimestamp";
1139 static const char id3_priv_owner_audio_setup[] = "com.apple.streaming.audioDescription";
1140 ID3v2ExtraMeta *meta;
1141
1142 ✗ ff_id3v2_read_dict(pb, metadata, ID3v2_DEFAULT_MAGIC, extra_meta);
1143 ✗ for (meta = *extra_meta; meta; meta = meta->next) {
1144 ✗ if (!strcmp(meta->tag, "PRIV")) {
1145 ✗ ID3v2ExtraMetaPRIV *priv = &meta->data.priv;
1146 ✗ if (priv->datasize == 8 && !av_strncasecmp(priv->owner, id3_priv_owner_ts, 44)) {
1147 /* 33-bit MPEG timestamp */
1148 ✗ int64_t ts = AV_RB64(priv->data);
1149 ✗ av_log(s, AV_LOG_DEBUG, "HLS ID3 audio timestamp %"PRId64"\n", ts);
1150 ✗ if ((ts & ~((1ULL << 33) - 1)) == 0)
1151 ✗ *dts = ts;
1152 else
1153 ✗ av_log(s, AV_LOG_ERROR, "Invalid HLS ID3 audio timestamp %"PRId64"\n", ts);
1154 ✗ } else if (priv->datasize >= 8 && !av_strncasecmp(priv->owner, id3_priv_owner_audio_setup, 36)) {
1155 ✗ ff_hls_senc_read_audio_setup_info(audio_setup_info, priv->data, priv->datasize);
1156 }
1157 ✗ } else if (!strcmp(meta->tag, "APIC") && apic)
1158 ✗ *apic = &meta->data.apic;
1159 }
1160 ✗ }
1161
1162 /* Check if the ID3 metadata contents have changed */
1163 ✗ static int id3_has_changed_values(struct playlist *pls, AVDictionary *metadata,
1164 ID3v2ExtraMetaAPIC *apic)
1165 {
1166 ✗ const AVDictionaryEntry *entry = NULL;
1167 const AVDictionaryEntry *oldentry;
1168 /* check that no keys have changed values */
1169 ✗ while ((entry = av_dict_iterate(metadata, entry))) {
1170 ✗ oldentry = av_dict_get(pls->id3_initial, entry->key, NULL, AV_DICT_MATCH_CASE);
1171 ✗ if (!oldentry || strcmp(oldentry->value, entry->value) != 0)
1172 ✗ return 1;
1173 }
1174
1175 /* check if apic appeared */
1176 ✗ if (apic && (pls->ctx->nb_streams != 2 || !pls->ctx->streams[1]->attached_pic.data))
1177 ✗ return 1;
1178
1179 ✗ if (apic) {
1180 ✗ int size = pls->ctx->streams[1]->attached_pic.size;
1181 ✗ if (size != apic->buf->size - AV_INPUT_BUFFER_PADDING_SIZE)
1182 ✗ return 1;
1183
1184 ✗ if (memcmp(apic->buf->data, pls->ctx->streams[1]->attached_pic.data, size) != 0)
1185 ✗ return 1;
1186 }
1187
1188 ✗ return 0;
1189 }
1190
1191 /* Parse ID3 data and handle the found data */
1192 ✗ static void handle_id3(AVIOContext *pb, struct playlist *pls)
1193 {
1194 ✗ AVDictionary *metadata = NULL;
1195 ✗ ID3v2ExtraMetaAPIC *apic = NULL;
1196 ✗ ID3v2ExtraMeta *extra_meta = NULL;
1197 ✗ int64_t timestamp = AV_NOPTS_VALUE;
1198
1199 ✗ parse_id3(pls->ctx, pb, &metadata, &timestamp, &pls->audio_setup_info, &apic, &extra_meta);
1200
1201 ✗ if (timestamp != AV_NOPTS_VALUE) {
1202 ✗ pls->id3_mpegts_timestamp = timestamp;
1203 ✗ pls->id3_offset = 0;
1204 }
1205
1206 ✗ if (!pls->id3_found) {
1207 /* initial ID3 tags */
1208 ✗ av_assert0(!pls->id3_deferred_extra);
1209 ✗ pls->id3_found = 1;
1210
1211 /* get picture attachment and set text metadata */
1212 ✗ if (pls->ctx->nb_streams)
1213 ✗ ff_id3v2_parse_apic(pls->ctx, extra_meta);
1214 else
1215 /* demuxer not yet opened, defer picture attachment */
1216 ✗ pls->id3_deferred_extra = extra_meta;
1217
1218 ✗ ff_id3v2_parse_priv_dict(&metadata, extra_meta);
1219 ✗ av_dict_copy(&pls->ctx->metadata, metadata, 0);
1220 ✗ pls->id3_initial = metadata;
1221
1222 } else {
1223 ✗ if (!pls->id3_changed && id3_has_changed_values(pls, metadata, apic)) {
1224 ✗ avpriv_report_missing_feature(pls->parent, "Changing ID3 metadata in HLS audio elementary stream");
1225 ✗ pls->id3_changed = 1;
1226 }
1227 ✗ av_dict_free(&metadata);
1228 }
1229
1230 ✗ if (!pls->id3_deferred_extra)
1231 ✗ ff_id3v2_free_extra_meta(&extra_meta);
1232 ✗ }
1233
1234 12 static void intercept_id3(struct playlist *pls, uint8_t *buf,
1235 int buf_size, int *len)
1236 {
1237 /* intercept id3 tags, we do not want to pass them to the raw
1238 * demuxer on all segment switches */
1239 int bytes;
1240 12 int id3_buf_pos = 0;
1241 12 int fill_buf = 0;
1242 12 struct segment *seg = current_segment(pls);
1243
1244 /* gather all the id3 tags */
1245 while (1) {
1246 /* see if we can retrieve enough data for ID3 header */
1247
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 12 if (*len < ID3v2_HEADER_SIZE && buf_size >= ID3v2_HEADER_SIZE) {
1248 ✗ bytes = read_from_url(pls, seg, buf + *len, ID3v2_HEADER_SIZE - *len);
1249 ✗ if (bytes > 0) {
1250
1251 ✗ if (bytes == ID3v2_HEADER_SIZE - *len)
1252 /* no EOF yet, so fill the caller buffer again after
1253 * we have stripped the ID3 tags */
1254 ✗ fill_buf = 1;
1255
1256 ✗ *len += bytes;
1257
1258 ✗ } else if (*len <= 0) {
1259 /* error/EOF */
1260 ✗ *len = bytes;
1261 ✗ fill_buf = 0;
1262 }
1263 }
1264
1265
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (*len < ID3v2_HEADER_SIZE)
1266 ✗ break;
1267
1268
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 12 times.
 12 if (ff_id3v2_match(buf, ID3v2_DEFAULT_MAGIC)) {
1269 ✗ int64_t maxsize = seg->size >= 0 ? seg->size : 1024*1024;
1270 ✗ int taglen = ff_id3v2_tag_len(buf);
1271 ✗ int tag_got_bytes = FFMIN(taglen, *len);
1272 ✗ int remaining = taglen - tag_got_bytes;
1273
1274 ✗ if (taglen > maxsize) {
1275 ✗ av_log(pls->parent, AV_LOG_ERROR, "Too large HLS ID3 tag (%d > %"PRId64" bytes)\n",
1276 taglen, maxsize);
1277 ✗ break;
1278 }
1279
1280 /*
1281 * Copy the id3 tag to our temporary id3 buffer.
1282 * We could read a small id3 tag directly without memcpy, but
1283 * we would still need to copy the large tags, and handling
1284 * both of those cases together with the possibility for multiple
1285 * tags would make the handling a bit complex.
1286 */
1287 ✗ pls->id3_buf = av_fast_realloc(pls->id3_buf, &pls->id3_buf_size, id3_buf_pos + taglen);
1288 ✗ if (!pls->id3_buf)
1289 ✗ break;
1290 ✗ memcpy(pls->id3_buf + id3_buf_pos, buf, tag_got_bytes);
1291 ✗ id3_buf_pos += tag_got_bytes;
1292
1293 /* strip the intercepted bytes */
1294 ✗ *len -= tag_got_bytes;
1295 ✗ memmove(buf, buf + tag_got_bytes, *len);
1296 ✗ av_log(pls->parent, AV_LOG_DEBUG, "Stripped %d HLS ID3 bytes\n", tag_got_bytes);
1297
1298 ✗ if (remaining > 0) {
1299 /* read the rest of the tag in */
1300 ✗ if (read_from_url(pls, seg, pls->id3_buf + id3_buf_pos, remaining) != remaining)
1301 ✗ break;
1302 ✗ id3_buf_pos += remaining;
1303 ✗ av_log(pls->parent, AV_LOG_DEBUG, "Stripped additional %d HLS ID3 bytes\n", remaining);
1304 }
1305
1306 } else {
1307 /* no more ID3 tags */
1308 12 break;
1309 }
1310 }
1311
1312 /* re-fill buffer for the caller unless EOF */
1313
3/6
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 12 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 12 times.
 12 if (*len >= 0 && (fill_buf || *len == 0)) {
1314 ✗ bytes = read_from_url(pls, seg, buf + *len, buf_size - *len);
1315
1316 /* ignore error if we already had some data */
1317 ✗ if (bytes >= 0)
1318 ✗ *len += bytes;
1319 ✗ else if (*len == 0)
1320 ✗ *len = bytes;
1321 }
1322
1323
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (pls->id3_buf) {
1324 /* Now parse all the ID3 tags */
1325 FFIOContext id3ioctx;
1326 ✗ ffio_init_read_context(&id3ioctx, pls->id3_buf, id3_buf_pos);
1327 ✗ handle_id3(&id3ioctx.pub, pls);
1328 }
1329
1330
1/2
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
 12 if (pls->is_id3_timestamped == -1)
1331 12 pls->is_id3_timestamped = (pls->id3_mpegts_timestamp != AV_NOPTS_VALUE);
1332 12 }
1333
1334 61 static int open_input(HLSContext *c, struct playlist *pls, struct segment *seg, AVIOContext **in)
1335 {
1336 61 AVDictionary *opts = NULL;
1337 int ret;
1338 61 int is_http = 0;
1339
1340
1/2
✓ Branch 0 taken 61 times.
✗ Branch 1 not taken.
 61 if (c->http_persistent)
1341 61 av_dict_set(&opts, "multiple_requests", "1", 0);
1342
1343
2/2
✓ Branch 0 taken 20 times.
✓ Branch 1 taken 41 times.
 61 if (seg->size >= 0) {
1344 /* try to restrict the HTTP request to the part we want
1345 * (if this is in fact a HTTP request) */
1346 20 av_dict_set_int(&opts, "offset", seg->url_offset, 0);
1347 20 av_dict_set_int(&opts, "end_offset", seg->url_offset + seg->size, 0);
1348 }
1349
1350 61 av_log(pls->parent, AV_LOG_VERBOSE, "HLS request for url '%s', offset %"PRId64", playlist %d\n",
1351 seg->url, seg->url_offset, pls->index);
1352
1353
2/4
✓ Branch 0 taken 61 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 61 times.
 61 if (seg->key_type == KEY_AES_128 || seg->key_type == KEY_SAMPLE_AES) {
1354 ✗ if (strcmp(seg->key, pls->key_url)) {
1355 ✗ AVIOContext *pb = NULL;
1356 ✗ if (open_url(pls->parent, &pb, seg->key, &c->avio_opts, opts, NULL) == 0) {
1357 ✗ ret = avio_read(pb, pls->key, sizeof(pls->key));
1358 ✗ if (ret != sizeof(pls->key)) {
1359 ✗ av_log(pls->parent, AV_LOG_ERROR, "Unable to read key file %s\n",
1360 seg->key);
1361 }
1362 ✗ ff_format_io_close(pls->parent, &pb);
1363 } else {
1364 ✗ av_log(pls->parent, AV_LOG_ERROR, "Unable to open key file %s\n",
1365 seg->key);
1366 }
1367 ✗ av_strlcpy(pls->key_url, seg->key, sizeof(pls->key_url));
1368 }
1369 }
1370
1371
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 61 times.
 61 if (seg->key_type == KEY_AES_128) {
1372 char iv[33], key[33], url[MAX_URL_SIZE];
1373 ✗ ff_data_to_hex(iv, seg->iv, sizeof(seg->iv), 0);
1374 ✗ ff_data_to_hex(key, pls->key, sizeof(pls->key), 0);
1375 ✗ if (strstr(seg->url, "://"))
1376 ✗ snprintf(url, sizeof(url), "crypto+%s", seg->url);
1377 else
1378 ✗ snprintf(url, sizeof(url), "crypto:%s", seg->url);
1379
1380 ✗ av_dict_set(&opts, "key", key, 0);
1381 ✗ av_dict_set(&opts, "iv", iv, 0);
1382
1383 ✗ ret = open_url(pls->parent, in, url, &c->avio_opts, opts, &is_http);
1384 ✗ if (ret < 0) {
1385 ✗ goto cleanup;
1386 }
1387 ✗ ret = 0;
1388 } else {
1389 61 ret = open_url(pls->parent, in, seg->url, &c->avio_opts, opts, &is_http);
1390 }
1391
1392 /* Seek to the requested position. If this was a HTTP request, the offset
1393 * should already be where want it to, but this allows e.g. local testing
1394 * without a HTTP server.
1395 *
1396 * This is not done for HTTP at all as avio_seek() does internal bookkeeping
1397 * of file offset which is out-of-sync with the actual offset when "offset"
1398 * AVOption is used with http protocol, causing the seek to not be a no-op
1399 * as would be expected. Wrong offset received from the server will not be
1400 * noticed without the call, though.
1401 */
1402
4/6
✗ Branch 0 not taken.
✓ Branch 1 taken 61 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 61 times.
✓ Branch 4 taken 46 times.
✓ Branch 5 taken 15 times.
 61 if (ret == 0 && !is_http && seg->url_offset) {
1403 15 int64_t seekret = avio_seek(*in, seg->url_offset, SEEK_SET);
1404
1/2
✓ Branch 0 taken 15 times.
✗ Branch 1 not taken.
 15 if (seekret < 0) {
1405 ✗ av_log(pls->parent, AV_LOG_ERROR, "Unable to seek to offset %"PRId64" of HLS segment '%s'\n", seg->url_offset, seg->url);
1406 ✗ ret = seekret;
1407 ✗ ff_format_io_close(pls->parent, in);
1408 }
1409 }
1410
1411 61 cleanup:
1412 61 av_dict_free(&opts);
1413 61 pls->cur_seg_offset = 0;
1414 61 return ret;
1415 }
1416
1417 61 static int update_init_section(struct playlist *pls, struct segment *seg)
1418 {
1419 static const int max_init_section_size = 1024*1024;
1420 61 HLSContext *c = pls->parent->priv_data;
1421 int64_t sec_size;
1422 int64_t urlsize;
1423 int ret;
1424
1425
1/2
✓ Branch 0 taken 61 times.
✗ Branch 1 not taken.
 61 if (seg->init_section == pls->cur_init_section)
1426 61 return 0;
1427
1428 ✗ pls->cur_init_section = NULL;
1429
1430 ✗ if (!seg->init_section)
1431 ✗ return 0;
1432
1433 ✗ ret = open_input(c, pls, seg->init_section, &pls->input);
1434 ✗ if (ret < 0) {
1435 ✗ av_log(pls->parent, AV_LOG_WARNING,
1436 "Failed to open an initialization section in playlist %d\n",
1437 pls->index);
1438 ✗ return ret;
1439 }
1440
1441 ✗ if (seg->init_section->size >= 0)
1442 ✗ sec_size = seg->init_section->size;
1443 ✗ else if ((urlsize = avio_size(pls->input)) >= 0)
1444 ✗ sec_size = urlsize;
1445 else
1446 ✗ sec_size = max_init_section_size;
1447
1448 ✗ av_log(pls->parent, AV_LOG_DEBUG,
1449 "Downloading an initialization section of size %"PRId64"\n",
1450 sec_size);
1451
1452 ✗ sec_size = FFMIN(sec_size, max_init_section_size);
1453
1454 ✗ av_fast_malloc(&pls->init_sec_buf, &pls->init_sec_buf_size, sec_size);
1455
1456 ✗ ret = read_from_url(pls, seg->init_section, pls->init_sec_buf,
1457 ✗ pls->init_sec_buf_size);
1458 ✗ ff_format_io_close(pls->parent, &pls->input);
1459
1460 ✗ if (ret < 0)
1461 ✗ return ret;
1462
1463 ✗ pls->cur_init_section = seg->init_section;
1464 ✗ pls->init_sec_data_len = ret;
1465 ✗ pls->init_sec_buf_read_offset = 0;
1466
1467 /* spec says audio elementary streams do not have media initialization
1468 * sections, so there should be no ID3 timestamps */
1469 ✗ pls->is_id3_timestamped = 0;
1470
1471 ✗ return 0;
1472 }
1473
1474 95 static int64_t default_reload_interval(struct playlist *pls)
1475 {
1476 95 return pls->n_segments > 0 ?
1477
1/2
✓ Branch 0 taken 95 times.
✗ Branch 1 not taken.
 95 pls->segments[pls->n_segments - 1]->duration :
1478 pls->target_duration;
1479 }
1480
1481 6864 static int playlist_needed(struct playlist *pls)
1482 {
1483 6864 AVFormatContext *s = pls->parent;
1484 int i, j;
1485 6864 int stream_needed = 0;
1486 int first_st;
1487
1488 /* If there is no context or streams yet, the playlist is needed */
1489
4/6
✓ Branch 0 taken 6864 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 24 times.
✓ Branch 3 taken 6840 times.
✓ Branch 4 taken 24 times.
✗ Branch 5 not taken.
 6864 if ((!pls->ctx || !pls->n_main_streams) && !pls->is_subtitle)
1490 24 return 1;
1491
1492 /* check if any of the streams in the playlist are needed */
1493
1/2
✓ Branch 0 taken 6840 times.
✗ Branch 1 not taken.
 6840 for (i = 0; i < pls->n_main_streams; i++) {
1494
1/2
✓ Branch 0 taken 6840 times.
✗ Branch 1 not taken.
 6840 if (pls->main_streams[i]->discard < AVDISCARD_ALL) {
1495 6840 stream_needed = 1;
1496 6840 break;
1497 }
1498 }
1499
1500 /* If all streams in the playlist were discarded, the playlist is not
1501 * needed (regardless of whether whole programs are discarded or not). */
1502
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6840 times.
 6840 if (!stream_needed)
1503 ✗ return 0;
1504
1505 /* Otherwise, check if all the programs (variants) this playlist is in are
1506 * discarded. Since all streams in the playlist are part of the same programs
1507 * we can just check the programs of the first stream. */
1508
1509 6840 first_st = pls->main_streams[0]->index;
1510
1511
1/2
✓ Branch 0 taken 6840 times.
✗ Branch 1 not taken.
 6840 for (i = 0; i < s->nb_programs; i++) {
1512 6840 AVProgram *program = s->programs[i];
1513
1/2
✓ Branch 0 taken 6840 times.
✗ Branch 1 not taken.
 6840 if (program->discard < AVDISCARD_ALL) {
1514
1/2
✓ Branch 0 taken 6840 times.
✗ Branch 1 not taken.
 6840 for (j = 0; j < program->nb_stream_indexes; j++) {
1515
1/2
✓ Branch 0 taken 6840 times.
✗ Branch 1 not taken.
 6840 if (program->stream_index[j] == first_st) {
1516 /* playlist is in an undiscarded program */
1517 6840 return 1;
1518 }
1519 }
1520 }
1521 }
1522
1523 /* some streams were not discarded but all the programs were */
1524 ✗ return 0;
1525 }
1526
1527 400 static int reload_playlist(struct playlist *v, HLSContext *c)
1528 {
1529 400 int ret = 0;
1530 400 int reload_count = 0;
1531
1532 400 v->needed = playlist_needed(v);
1533
1534
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 400 times.
 400 if (!v->needed)
1535 ✗ return AVERROR_EOF;
1536
1537
4/6
✓ Branch 0 taken 305 times.
✓ Branch 1 taken 95 times.
✓ Branch 2 taken 305 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 305 times.
 400 if (!v->input || (c->http_persistent && v->input_read_done)) {
1538 int64_t reload_interval;
1539
1540 /* Check that the playlist is still needed before opening a new
1541 * segment. */
1542 95 v->needed = playlist_needed(v);
1543
1544
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 95 times.
 95 if (!v->needed) {
1545 ✗ av_log(v->parent, AV_LOG_INFO, "No longer receiving playlist %d ('%s')\n",
1546 ✗ v->index, v->url);
1547 ✗ return AVERROR_EOF;
1548 }
1549
1550 /* If this is a live stream and the reload interval has elapsed since
1551 * the last playlist reload, reload the playlists now. */
1552 95 reload_interval = default_reload_interval(v);
1553
1554 95 reload:
1555 95 reload_count++;
1556
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 95 times.
 95 if (reload_count > c->max_reload)
1557 ✗ return AVERROR_EOF;
1558
2/2
✓ Branch 0 taken 3 times.
✓ Branch 1 taken 92 times.
 95 if (!v->finished &&
1559
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 3 times.
 3 av_gettime_relative() - v->last_load_time >= reload_interval) {
1560 ✗ if ((ret = parse_playlist(c, v->url, v, NULL)) < 0) {
1561 ✗ if (ret != AVERROR_EXIT)
1562 ✗ av_log(v->parent, AV_LOG_WARNING, "Failed to reload playlist %d\n",
1563 v->index);
1564 ✗ return ret;
1565 }
1566 /* If we need to reload the playlist again below (if
1567 * there's still no more segments), switch to a reload
1568 * interval of half the target duration. */
1569 ✗ reload_interval = v->target_duration / 2;
1570 }
1571
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 95 times.
 95 if (v->cur_seq_no < v->start_seq_no) {
1572 ✗ av_log(v->parent, AV_LOG_WARNING,
1573 "skipping %"PRId64" segments ahead, expired from playlists\n",
1574 ✗ v->start_seq_no - v->cur_seq_no);
1575 ✗ v->cur_seq_no = v->start_seq_no;
1576 }
1577
2/2
✓ Branch 0 taken 63 times.
✓ Branch 1 taken 32 times.
 95 if (v->cur_seq_no > v->last_seq_no) {
1578 63 v->last_seq_no = v->cur_seq_no;
1579 63 v->m3u8_hold_counters = 0;
1580
1/2
✓ Branch 0 taken 32 times.
✗ Branch 1 not taken.
 32 } else if (v->last_seq_no == v->cur_seq_no) {
1581 32 v->m3u8_hold_counters++;
1582
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 32 times.
 32 if (v->m3u8_hold_counters >= c->m3u8_hold_counters) {
1583 ✗ return AVERROR_EOF;
1584 }
1585 } else {
1586 ✗ av_log(v->parent, AV_LOG_WARNING, "The m3u8 list sequence may have been wrapped.\n");
1587 }
1588
2/2
✓ Branch 0 taken 34 times.
✓ Branch 1 taken 61 times.
 95 if (v->cur_seq_no >= v->start_seq_no + v->n_segments) {
1589
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 34 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 34 if (v->finished || v->is_subtitle)
1590 34 return AVERROR_EOF;
1591 ✗ while (av_gettime_relative() - v->last_load_time < reload_interval) {
1592 ✗ if (ff_check_interrupt(c->interrupt_callback))
1593 ✗ return AVERROR_EXIT;
1594 ✗ av_usleep(100*1000);
1595 }
1596 /* Enough time has elapsed since the last reload */
1597 ✗ goto reload;
1598 }
1599
1600 }
1601 366 return ret;
1602 }
1603
1604 341 static int read_data_continuous(void *opaque, uint8_t *buf, int buf_size)
1605 {
1606 341 struct playlist *v = opaque;
1607 341 HLSContext *c = v->parent->priv_data;
1608 int ret;
1609 341 int just_opened = 0;
1610 341 int segment_retries = 0;
1611 struct segment *seg;
1612
1613
2/4
✓ Branch 0 taken 341 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 341 times.
 341 if (c->http_persistent && v->input_read_done) {
1614 ✗ ret = reload_playlist(v, c);
1615 ✗ if (ret < 0)
1616 ✗ return ret;
1617 }
1618
1619 341 v->input_read_done = 0;
1620
1621 59 restart:
1622 400 ret = reload_playlist(v, c);
1623
2/2
✓ Branch 0 taken 34 times.
✓ Branch 1 taken 366 times.
 400 if (ret < 0)
1624 34 return ret;
1625
1626 366 seg = current_segment(v);
1627
1628
4/6
✓ Branch 0 taken 305 times.
✓ Branch 1 taken 61 times.
✓ Branch 2 taken 305 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 305 times.
 366 if (!v->input || (c->http_persistent && v->input_read_done)) {
1629 /* load/update Media Initialization Section, if any */
1630 61 ret = update_init_section(v, seg);
1631
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 61 times.
 61 if (ret)
1632 ✗ return ret;
1633
1634
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 61 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 61 if (c->http_multiple == 1 && v->input_next_requested) {
1635 ✗ FFSWAP(AVIOContext *, v->input, v->input_next);
1636 ✗ v->cur_seg_offset = 0;
1637 ✗ v->input_next_requested = 0;
1638 ✗ ret = 0;
1639 } else {
1640 61 ret = open_input(c, v, seg, &v->input);
1641 }
1642
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 61 times.
 61 if (ret < 0) {
1643 ✗ if (ff_check_interrupt(c->interrupt_callback))
1644 ✗ return AVERROR_EXIT;
1645 ✗ av_log(v->parent, AV_LOG_WARNING, "Failed to open segment %"PRId64" of playlist %d\n",
1646 v->cur_seq_no,
1647 v->index);
1648 ✗ if (segment_retries >= c->seg_max_retry) {
1649 ✗ av_log(v->parent, AV_LOG_WARNING, "Segment %"PRId64" of playlist %d failed too many times, skipping\n",
1650 v->cur_seq_no,
1651 v->index);
1652 ✗ v->cur_seq_no++;
1653 ✗ segment_retries = 0;
1654 } else {
1655 ✗ segment_retries++;
1656 }
1657 ✗ goto restart;
1658 }
1659 61 segment_retries = 0;
1660 61 just_opened = 1;
1661 }
1662
1663
1/2
✓ Branch 0 taken 366 times.
✗ Branch 1 not taken.
 366 if (c->http_multiple == -1) {
1664 366 uint8_t *http_version_opt = NULL;
1665 366 int r = av_opt_get(v->input, "http_version", AV_OPT_SEARCH_CHILDREN, &http_version_opt);
1666
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 366 times.
 366 if (r >= 0) {
1667 ✗ c->http_multiple = (!strncmp((const char *)http_version_opt, "1.1", 3) || !strncmp((const char *)http_version_opt, "2.0", 3));
1668 ✗ av_freep(&http_version_opt);
1669 }
1670 }
1671
1672 366 seg = next_segment(v);
1673
1/6
✗ Branch 0 not taken.
✓ Branch 1 taken 366 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 366 if (c->http_multiple == 1 && !v->input_next_requested &&
1674 ✗ seg && seg->key_type == KEY_NONE && av_strstart(seg->url, "http", NULL)) {
1675 ✗ ret = open_input(c, v, seg, &v->input_next);
1676 ✗ if (ret < 0) {
1677 ✗ if (ff_check_interrupt(c->interrupt_callback))
1678 ✗ return AVERROR_EXIT;
1679 ✗ av_log(v->parent, AV_LOG_WARNING, "Failed to open segment %"PRId64" of playlist %d\n",
1680 ✗ v->cur_seq_no + 1,
1681 v->index);
1682 } else {
1683 ✗ v->input_next_requested = 1;
1684 }
1685 }
1686
1687
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 366 times.
 366 if (v->init_sec_buf_read_offset < v->init_sec_data_len) {
1688 /* Push init section out first before first actual segment */
1689 ✗ int copy_size = FFMIN(v->init_sec_data_len - v->init_sec_buf_read_offset, buf_size);
1690 ✗ memcpy(buf, v->init_sec_buf, copy_size);
1691 ✗ v->init_sec_buf_read_offset += copy_size;
1692 ✗ return copy_size;
1693 }
1694
1695 366 seg = current_segment(v);
1696 366 ret = read_from_url(v, seg, buf, buf_size);
1697
2/2
✓ Branch 0 taken 307 times.
✓ Branch 1 taken 59 times.
 366 if (ret > 0) {
1698
4/4
✓ Branch 0 taken 61 times.
✓ Branch 1 taken 246 times.
✓ Branch 2 taken 12 times.
✓ Branch 3 taken 49 times.
 307 if (just_opened && v->is_id3_timestamped != 0) {
1699 /* Intercept ID3 tags here, elementary audio streams are required
1700 * to convey timestamps using them in the beginning of each segment. */
1701 12 intercept_id3(v, buf, buf_size, &ret);
1702 }
1703
1704 307 return ret;
1705 }
1706
1/2
✓ Branch 0 taken 59 times.
✗ Branch 1 not taken.
 59 if (c->http_persistent &&
1707
2/4
✓ Branch 0 taken 59 times.
✗ Branch 1 not taken.
✗ Branch 3 not taken.
✓ Branch 4 taken 59 times.
 59 seg->key_type == KEY_NONE && av_strstart(seg->url, "http", NULL)) {
1708 ✗ v->input_read_done = 1;
1709 } else {
1710 59 ff_format_io_close(v->parent, &v->input);
1711 }
1712 59 v->cur_seq_no++;
1713
1714 59 c->cur_seq_no = v->cur_seq_no;
1715
1716 59 goto restart;
1717 }
1718
1719 ✗ static int read_data_subtitle_segment(void *opaque, uint8_t *buf, int buf_size)
1720 {
1721 ✗ struct playlist *v = opaque;
1722 ✗ HLSContext *c = v->parent->priv_data;
1723 int ret;
1724 struct segment *seg;
1725
1726 ✗ if (!v->needed || v->cur_seq_no - v->start_seq_no >= v->n_segments) {
1727 ✗ return AVERROR_EOF;
1728 } else {
1729 ✗ seg = current_segment(v);
1730 }
1731
1732 ✗ if (!v->input) {
1733 ✗ ret = open_input(c, v, seg, &v->input);
1734 ✗ if (ret < 0) {
1735 ✗ if (ff_check_interrupt(c->interrupt_callback))
1736 ✗ return AVERROR_EXIT;
1737 ✗ av_log(v->parent, AV_LOG_WARNING, "Failed to open segment of playlist %d\n",
1738 v->index);
1739 ✗ return ret;
1740 }
1741 }
1742
1743 ✗ return read_from_url(v, seg, buf, buf_size);
1744 }
1745
1746 ✗ static int nested_io_open(AVFormatContext *s, AVIOContext **pb, const char *url,
1747 int flags, AVDictionary **opts)
1748 {
1749 ✗ av_log(s, AV_LOG_ERROR,
1750 "A HLS playlist item '%s' referred to an external file '%s'. "
1751 "Opening this file was forbidden for security reasons\n",
1752 s->url, url);
1753 ✗ return AVERROR(EPERM);
1754 }
1755
1756 ✗ static int init_subtitle_context(struct playlist *pls)
1757 {
1758 ✗ HLSContext *c = pls->parent->priv_data;
1759 const AVInputFormat *in_fmt;
1760 ✗ AVDictionary *opts = NULL;
1761 int ret;
1762
1763 ✗ if (!(pls->ctx = avformat_alloc_context()))
1764 ✗ return AVERROR(ENOMEM);
1765
1766 ✗ pls->read_buffer = av_malloc(INITIAL_BUFFER_SIZE);
1767 ✗ if (!pls->read_buffer) {
1768 ✗ avformat_free_context(pls->ctx);
1769 ✗ pls->ctx = NULL;
1770 ✗ return AVERROR(ENOMEM);
1771 }
1772
1773 ✗ ffio_init_context(&pls->pb, pls->read_buffer, INITIAL_BUFFER_SIZE, 0, pls,
1774 read_data_subtitle_segment, NULL, NULL);
1775 ✗ pls->pb.pub.seekable = 0;
1776 ✗ pls->ctx->pb = &pls->pb.pub;
1777 ✗ pls->ctx->io_open = nested_io_open;
1778
1779 ✗ ret = ff_copy_whiteblacklists(pls->ctx, pls->parent);
1780 ✗ if (ret < 0)
1781 ✗ return ret;
1782
1783 ✗ in_fmt = av_find_input_format("webvtt");
1784 ✗ av_dict_copy(&opts, c->seg_format_opts, 0);
1785 ✗ ret = avformat_open_input(&pls->ctx, current_segment(pls)->url, in_fmt, &opts);
1786 ✗ av_dict_free(&opts);
1787
1788 ✗ return ret;
1789 }
1790
1791 ✗ static int read_subtitle_packet(struct playlist *v, AVPacket *pkt)
1792 {
1793 ✗ HLSContext *c = v->parent->priv_data;
1794 int ret;
1795
1796 ✗ restart:
1797 ✗ ret = reload_playlist(v, c);
1798 ✗ if (ret < 0)
1799 ✗ return ret;
1800
1801 ✗ if (v->input && !v->ctx)
1802 ✗ ff_format_io_close(v->parent, &v->input);
1803
1804 ✗ if (!v->input && !v->ctx) {
1805 ✗ ret = init_subtitle_context(v);
1806 ✗ if (ret < 0)
1807 ✗ return ret;
1808 }
1809
1810 ✗ ret = av_read_frame(v->ctx, v->pkt);
1811 ✗ if (!ret) {
1812 ✗ return ret;
1813 }
1814 ✗ ff_format_io_close(v->parent, &v->input);
1815 ✗ v->cur_seq_no++;
1816 ✗ c->cur_seq_no = v->cur_seq_no;
1817
1818 ✗ avformat_close_input(&v->ctx);
1819
1820 ✗ goto restart;
1821 }
1822
1823 ✗ static void add_renditions_to_variant(HLSContext *c, struct variant *var,
1824 enum AVMediaType type, const char *group_id)
1825 {
1826 int i;
1827
1828 ✗ for (i = 0; i < c->n_renditions; i++) {
1829 ✗ struct rendition *rend = c->renditions[i];
1830
1831 ✗ if (rend->type == type && !strcmp(rend->group_id, group_id)) {
1832
1833 ✗ if (rend->playlist)
1834 /* rendition is an external playlist
1835 * => add the playlist to the variant */
1836 ✗ dynarray_add(&var->playlists, &var->n_playlists, rend->playlist);
1837 else
1838 /* rendition is part of the variant main Media Playlist
1839 * => add the rendition to the main Media Playlist */
1840 ✗ dynarray_add(&var->playlists[0]->renditions,
1841 &var->playlists[0]->n_renditions,
1842 rend);
1843 }
1844 }
1845 ✗ }
1846
1847 36 static void add_metadata_from_renditions(AVFormatContext *s, struct playlist *pls,
1848 enum AVMediaType type)
1849 {
1850 36 int rend_idx = 0;
1851 int i;
1852
1853
2/2
✓ Branch 0 taken 36 times.
✓ Branch 1 taken 24 times.
 60 for (i = 0; i < pls->n_main_streams; i++) {
1854 36 AVStream *st = pls->main_streams[i];
1855
1856
2/2
✓ Branch 0 taken 24 times.
✓ Branch 1 taken 12 times.
 36 if (st->codecpar->codec_type != type)
1857 24 continue;
1858
1859
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 for (; rend_idx < pls->n_renditions; rend_idx++) {
1860 ✗ struct rendition *rend = pls->renditions[rend_idx];
1861
1862 ✗ if (rend->type != type)
1863 ✗ continue;
1864
1865 ✗ if (rend->language[0])
1866 ✗ av_dict_set(&st->metadata, "language", rend->language, 0);
1867 ✗ if (rend->name[0])
1868 ✗ av_dict_set(&st->metadata, "comment", rend->name, 0);
1869
1870 ✗ st->disposition |= rend->disposition;
1871 }
1872
1/2
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
 12 if (rend_idx >=pls->n_renditions)
1873 12 break;
1874 }
1875 36 }
1876
1877 /* if timestamp was in valid range: returns 1 and sets seq_no
1878 * if not: returns 0 and sets seq_no to closest segment */
1879 ✗ static int find_timestamp_in_playlist(HLSContext *c, struct playlist *pls,
1880 int64_t timestamp, int64_t *seq_no,
1881 int64_t *seg_start_ts)
1882 {
1883 int i;
1884 ✗ int64_t pos = c->first_timestamp == AV_NOPTS_VALUE ?
1885 ✗ 0 : c->first_timestamp;
1886
1887 ✗ if (timestamp < pos) {
1888 ✗ *seq_no = pls->start_seq_no;
1889 ✗ return 0;
1890 }
1891
1892 ✗ for (i = 0; i < pls->n_segments; i++) {
1893 ✗ int64_t diff = pos + pls->segments[i]->duration - timestamp;
1894 ✗ if (diff > 0) {
1895 ✗ *seq_no = pls->start_seq_no + i;
1896 ✗ if (seg_start_ts) {
1897 ✗ *seg_start_ts = pos;
1898 }
1899 ✗ return 1;
1900 }
1901 ✗ pos += pls->segments[i]->duration;
1902 }
1903
1904 ✗ *seq_no = pls->start_seq_no + pls->n_segments - 1;
1905
1906 ✗ return 0;
1907 }
1908
1909 12 static int64_t select_cur_seq_no(HLSContext *c, struct playlist *pls)
1910 {
1911 int64_t seq_no;
1912
1913
3/6
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 11 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 1 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 12 if (!pls->finished && !c->first_packet &&
1914 ✗ av_gettime_relative() - pls->last_load_time >= default_reload_interval(pls))
1915 /* reload the playlist since it was suspended */
1916 ✗ parse_playlist(c, pls->url, pls, NULL);
1917
1918 /* If playback is already in progress (we are just selecting a new
1919 * playlist) and this is a complete file, find the matching segment
1920 * by counting durations. */
1921
3/4
✓ Branch 0 taken 11 times.
✓ Branch 1 taken 1 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 11 times.
 12 if (pls->finished && c->cur_timestamp != AV_NOPTS_VALUE) {
1922 ✗ find_timestamp_in_playlist(c, pls, c->cur_timestamp, &seq_no, NULL);
1923 ✗ return seq_no;
1924 }
1925
1926
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 11 times.
 12 if (!pls->finished) {
1927
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
 1 if (!c->first_packet && /* we are doing a segment selection during playback */
1928 ✗ c->cur_seq_no >= pls->start_seq_no &&
1929 ✗ c->cur_seq_no < pls->start_seq_no + pls->n_segments)
1930 /* While spec 3.4.3 says that we cannot assume anything about the
1931 * content at the same sequence number on different playlists,
1932 * in practice this seems to work and doing it otherwise would
1933 * require us to download a segment to inspect its timestamps. */
1934 ✗ return c->cur_seq_no;
1935
1936 /* If this is a live stream, start live_start_index segments from the
1937 * start or end */
1938
1/2
✓ Branch 0 taken 1 times.
✗ Branch 1 not taken.
 1 if (c->live_start_index < 0)
1939 1 seq_no = pls->start_seq_no + FFMAX(pls->n_segments +
1940 c->live_start_index, 0);
1941 else
1942 ✗ seq_no = pls->start_seq_no + FFMIN(c->live_start_index,
1943 pls->n_segments - 1);
1944
1945 /* If #EXT-X-START in playlist, need to recalculate */
1946
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 1 if (pls->time_offset_flag && c->prefer_x_start) {
1947 int64_t start_timestamp;
1948 ✗ int64_t playlist_duration = 0;
1949 ✗ int64_t cur_timestamp = c->cur_timestamp == AV_NOPTS_VALUE ? 0 :
1950 c->cur_timestamp;
1951
1952 ✗ for (int i = 0; i < pls->n_segments; i++)
1953 ✗ playlist_duration += pls->segments[i]->duration;
1954
1955 /* If the absolute value of TIME-OFFSET exceeds
1956 * the duration of the playlist, it indicates either the end of the
1957 * playlist (if positive) or the beginning of the playlist (if
1958 * negative). */
1959 ✗ if (pls->start_time_offset >=0 &&
1960 ✗ pls->start_time_offset > playlist_duration)
1961 ✗ start_timestamp = cur_timestamp + playlist_duration;
1962 ✗ else if (pls->start_time_offset >= 0 &&
1963 ✗ pls->start_time_offset <= playlist_duration)
1964 ✗ start_timestamp = cur_timestamp + pls->start_time_offset;
1965 ✗ else if (pls->start_time_offset < 0 &&
1966 ✗ pls->start_time_offset < -playlist_duration)
1967 ✗ start_timestamp = cur_timestamp;
1968 ✗ else if (pls->start_time_offset < 0 &&
1969 ✗ pls->start_time_offset > -playlist_duration)
1970 ✗ start_timestamp = cur_timestamp + playlist_duration +
1971 ✗ pls->start_time_offset;
1972 else
1973 ✗ start_timestamp = cur_timestamp;
1974
1975 ✗ find_timestamp_in_playlist(c, pls, start_timestamp, &seq_no, NULL);
1976 }
1977 1 return seq_no;
1978 }
1979
1980 /* Otherwise just start on the first segment. */
1981 11 return pls->start_seq_no;
1982 }
1983
1984 12 static void add_stream_to_programs(AVFormatContext *s, struct playlist *pls, AVStream *stream)
1985 {
1986 12 HLSContext *c = s->priv_data;
1987 int i, j;
1988 12 int bandwidth = -1;
1989
1990
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 12 times.
 24 for (i = 0; i < c->n_variants; i++) {
1991 12 struct variant *v = c->variants[i];
1992
1993
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 12 times.
 24 for (j = 0; j < v->n_playlists; j++) {
1994
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (v->playlists[j] != pls)
1995 ✗ continue;
1996
1997 12 av_program_add_stream_index(s, i, stream->index);
1998
1999
1/2
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
 12 if (bandwidth < 0)
2000 12 bandwidth = v->bandwidth;
2001 ✗ else if (bandwidth != v->bandwidth)
2002 ✗ bandwidth = -1; /* stream in multiple variants with different bandwidths */
2003 }
2004 }
2005
2006
1/2
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
 12 if (bandwidth >= 0)
2007 12 av_dict_set_int(&stream->metadata, "variant_bitrate", bandwidth, 0);
2008 12 }
2009
2010 22 static int set_stream_info_from_input_stream(AVStream *st, struct playlist *pls, AVStream *ist)
2011 {
2012 int err;
2013
2014 22 err = avcodec_parameters_copy(st->codecpar, ist->codecpar);
2015
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 22 times.
 22 if (err < 0)
2016 ✗ return err;
2017
2018
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 22 times.
 22 if (pls->is_id3_timestamped) /* custom timestamps via id3 */
2019 ✗ avpriv_set_pts_info(st, 33, 1, MPEG_TIME_BASE);
2020 else
2021 22 avpriv_set_pts_info(st, ist->pts_wrap_bits, ist->time_base.num, ist->time_base.den);
2022
2023 // copy disposition
2024 22 st->disposition = ist->disposition;
2025
2026 22 av_dict_copy(&st->metadata, ist->metadata, 0);
2027
2028 22 ffstream(st)->need_context_update = 1;
2029
2030 22 return 0;
2031 }
2032
2033 /* add new subdemuxer streams to our context, if any */
2034 6370 static int update_streams_from_subdemuxer(AVFormatContext *s, struct playlist *pls)
2035 {
2036 int err;
2037
2038
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 6370 times.
 6382 while (pls->n_main_streams < pls->ctx->nb_streams) {
2039 12 int ist_idx = pls->n_main_streams;
2040 12 AVStream *st = avformat_new_stream(s, NULL);
2041 12 AVStream *ist = pls->ctx->streams[ist_idx];
2042
2043
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (!st)
2044 ✗ return AVERROR(ENOMEM);
2045
2046 12 st->id = pls->index;
2047 12 dynarray_add(&pls->main_streams, &pls->n_main_streams, st);
2048
2049 12 add_stream_to_programs(s, pls, st);
2050
2051 12 err = set_stream_info_from_input_stream(st, pls, ist);
2052
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (err < 0)
2053 ✗ return err;
2054 }
2055
2056 6370 return 0;
2057 }
2058
2059 23 static void update_noheader_flag(AVFormatContext *s)
2060 {
2061 23 HLSContext *c = s->priv_data;
2062 23 int flag_needed = 0;
2063 int i;
2064
2065
2/2
✓ Branch 0 taken 23 times.
✓ Branch 1 taken 12 times.
 35 for (i = 0; i < c->n_playlists; i++) {
2066 23 struct playlist *pls = c->playlists[i];
2067
2068
2/2
✓ Branch 0 taken 11 times.
✓ Branch 1 taken 12 times.
 23 if (pls->has_noheader_flag) {
2069 11 flag_needed = 1;
2070 11 break;
2071 }
2072 }
2073
2074
2/2
✓ Branch 0 taken 11 times.
✓ Branch 1 taken 12 times.
 23 if (flag_needed)
2075 11 s->ctx_flags |= AVFMTCTX_NOHEADER;
2076 else
2077 12 s->ctx_flags &= ~AVFMTCTX_NOHEADER;
2078 23 }
2079
2080 12 static int hls_close(AVFormatContext *s)
2081 {
2082 12 HLSContext *c = s->priv_data;
2083
2084 12 free_playlist_list(c);
2085 12 free_variant_list(c);
2086 12 free_rendition_list(c);
2087
2088
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (c->crypto_ctx.aes_ctx)
2089 ✗ av_free(c->crypto_ctx.aes_ctx);
2090
2091 12 av_dict_free(&c->avio_opts);
2092 12 ff_format_io_close(c->ctx, &c->playlist_pb);
2093
2094 12 return 0;
2095 }
2096
2097 12 static int hls_read_header(AVFormatContext *s)
2098 {
2099 12 HLSContext *c = s->priv_data;
2100 12 int ret = 0, i;
2101 12 int64_t highest_cur_seq_no = 0;
2102
2103 12 c->ctx = s;
2104 12 c->interrupt_callback = &s->interrupt_callback;
2105
2106 12 c->first_packet = 1;
2107 12 c->first_timestamp = AV_NOPTS_VALUE;
2108 12 c->cur_timestamp = AV_NOPTS_VALUE;
2109
2110
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 12 times.
 12 if ((ret = ffio_copy_url_options(s->pb, &c->avio_opts)) < 0)
2111 ✗ return ret;
2112
2113 /* XXX: Some HLS servers don't like being sent the range header,
2114 in this case, need to setting http_seekable = 0 to disable
2115 the range header */
2116 12 av_dict_set_int(&c->avio_opts, "seekable", c->http_seekable, 0);
2117
2118
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 12 times.
 12 if ((ret = parse_playlist(c, s->url, NULL, s->pb)) < 0)
2119 ✗ return ret;
2120
2121
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (c->n_variants == 0) {
2122 ✗ av_log(s, AV_LOG_WARNING, "Empty playlist\n");
2123 ✗ return AVERROR_EOF;
2124 }
2125 /* If the playlist only contained playlists (Master Playlist),
2126 * parse each individual playlist. */
2127
2/4
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 12 times.
 12 if (c->n_playlists > 1 || c->playlists[0]->n_segments == 0) {
2128 ✗ for (i = 0; i < c->n_playlists; i++) {
2129 ✗ struct playlist *pls = c->playlists[i];
2130 ✗ pls->m3u8_hold_counters = 0;
2131 ✗ if ((ret = parse_playlist(c, pls->url, pls, NULL)) < 0) {
2132 ✗ av_log(s, AV_LOG_WARNING, "parse_playlist error %s [%s]\n", av_err2str(ret), pls->url);
2133 ✗ pls->broken = 1;
2134 ✗ if (c->n_playlists > 1)
2135 ✗ continue;
2136 ✗ return ret;
2137 }
2138 }
2139 }
2140
2141
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 12 times.
 24 for (i = 0; i < c->n_variants; i++) {
2142
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (c->variants[i]->playlists[0]->n_segments == 0) {
2143 ✗ av_log(s, AV_LOG_WARNING, "Empty segment [%s]\n", c->variants[i]->playlists[0]->url);
2144 ✗ c->variants[i]->playlists[0]->broken = 1;
2145 }
2146 }
2147
2148 /* If this isn't a live stream, calculate the total duration of the
2149 * stream. */
2150
2/2
✓ Branch 0 taken 11 times.
✓ Branch 1 taken 1 times.
 12 if (c->variants[0]->playlists[0]->finished) {
2151 11 int64_t duration = 0;
2152
2/2
✓ Branch 0 taken 60 times.
✓ Branch 1 taken 11 times.
 71 for (i = 0; i < c->variants[0]->playlists[0]->n_segments; i++)
2153 60 duration += c->variants[0]->playlists[0]->segments[i]->duration;
2154 11 s->duration = duration;
2155 }
2156
2157 /* Associate renditions with variants */
2158
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 12 times.
 24 for (i = 0; i < c->n_variants; i++) {
2159 12 struct variant *var = c->variants[i];
2160
2161
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (var->audio_group[0])
2162 ✗ add_renditions_to_variant(c, var, AVMEDIA_TYPE_AUDIO, var->audio_group);
2163
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (var->video_group[0])
2164 ✗ add_renditions_to_variant(c, var, AVMEDIA_TYPE_VIDEO, var->video_group);
2165
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (var->subtitles_group[0])
2166 ✗ add_renditions_to_variant(c, var, AVMEDIA_TYPE_SUBTITLE, var->subtitles_group);
2167 }
2168
2169 /* Create a program for each variant */
2170
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 12 times.
 24 for (i = 0; i < c->n_variants; i++) {
2171 12 struct variant *v = c->variants[i];
2172 AVProgram *program;
2173
2174 12 program = av_new_program(s, i);
2175
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (!program)
2176 ✗ return AVERROR(ENOMEM);
2177 12 av_dict_set_int(&program->metadata, "variant_bitrate", v->bandwidth, 0);
2178 }
2179
2180 /* Select the starting segments */
2181
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 12 times.
 24 for (i = 0; i < c->n_playlists; i++) {
2182 12 struct playlist *pls = c->playlists[i];
2183
2184
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (pls->n_segments == 0)
2185 ✗ continue;
2186
2187 12 pls->cur_seq_no = select_cur_seq_no(c, pls);
2188 12 highest_cur_seq_no = FFMAX(highest_cur_seq_no, pls->cur_seq_no);
2189 }
2190
2191 12 av_dict_set(&c->seg_format_opts, "prefer_hls_mpegts_pts", "1", 0);
2192
2193 /* Open the demuxer for each playlist */
2194
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 12 times.
 24 for (i = 0; i < c->n_playlists; i++) {
2195 12 struct playlist *pls = c->playlists[i];
2196 12 const AVInputFormat *in_fmt = NULL;
2197 char *url;
2198 12 AVDictionary *options = NULL;
2199 12 struct segment *seg = NULL;
2200
2201
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 12 times.
 12 if (!(pls->ctx = avformat_alloc_context()))
2202 ✗ return AVERROR(ENOMEM);
2203
2204
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (pls->n_segments == 0)
2205 ✗ continue;
2206
2207 12 pls->index = i;
2208 12 pls->needed = 1;
2209 12 pls->parent = s;
2210
2211 /*
2212 * If this is a live stream and this playlist looks like it is one segment
2213 * behind, try to sync it up so that every substream starts at the same
2214 * time position (so e.g. avformat_find_stream_info() will see packets from
2215 * all active streams within the first few seconds). This is not very generic,
2216 * though, as the sequence numbers are technically independent.
2217 */
2218
3/4
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 11 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 1 times.
 12 if (!pls->finished && pls->cur_seq_no == highest_cur_seq_no - 1 &&
2219 ✗ highest_cur_seq_no < pls->start_seq_no + pls->n_segments) {
2220 ✗ pls->cur_seq_no = highest_cur_seq_no;
2221 }
2222
2223 12 pls->read_buffer = av_malloc(INITIAL_BUFFER_SIZE);
2224
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (!pls->read_buffer){
2225 ✗ avformat_free_context(pls->ctx);
2226 ✗ pls->ctx = NULL;
2227 ✗ return AVERROR(ENOMEM);
2228 }
2229
2230
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (pls->is_subtitle)
2231 ✗ ffio_init_context(&pls->pb, (unsigned char*)av_strdup("WEBVTT\n"), (int)strlen("WEBVTT\n"), 0, pls,
2232 NULL, NULL, NULL);
2233 else
2234 12 ffio_init_context(&pls->pb, pls->read_buffer, INITIAL_BUFFER_SIZE, 0, pls,
2235 read_data_continuous, NULL, NULL);
2236
2237 /*
2238 * If encryption scheme is SAMPLE-AES, try to read ID3 tags of
2239 * external audio track that contains audio setup information
2240 */
2241 12 seg = current_segment(pls);
2242
2/6
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 12 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 12 if (seg && seg->key_type == KEY_SAMPLE_AES && pls->n_renditions > 0 &&
2243 ✗ pls->renditions[0]->type == AVMEDIA_TYPE_AUDIO) {
2244 uint8_t buf[HLS_MAX_ID3_TAGS_DATA_LEN];
2245 ✗ if ((ret = avio_read(&pls->pb.pub, buf, HLS_MAX_ID3_TAGS_DATA_LEN)) < 0) {
2246 /* Fail if error was not end of file */
2247 ✗ if (ret != AVERROR_EOF) {
2248 ✗ avformat_free_context(pls->ctx);
2249 ✗ pls->ctx = NULL;
2250 ✗ return ret;
2251 }
2252 }
2253 ✗ ret = 0;
2254 /* Reset reading */
2255 ✗ ff_format_io_close(pls->parent, &pls->input);
2256 ✗ pls->input = NULL;
2257 ✗ pls->input_read_done = 0;
2258 ✗ ff_format_io_close(pls->parent, &pls->input_next);
2259 ✗ pls->input_next = NULL;
2260 ✗ pls->input_next_requested = 0;
2261 ✗ pls->cur_seg_offset = 0;
2262 ✗ pls->cur_init_section = NULL;
2263 /* Reset EOF flag */
2264 ✗ pls->pb.pub.eof_reached = 0;
2265 /* Clear any buffered data */
2266 ✗ pls->pb.pub.buf_end = pls->pb.pub.buf_ptr = pls->pb.pub.buffer;
2267 /* Reset the position */
2268 ✗ pls->pb.pub.pos = 0;
2269 }
2270
2271 /*
2272 * If encryption scheme is SAMPLE-AES and audio setup information is present in external audio track,
2273 * use that information to find the media format, otherwise probe input data
2274 */
2275 12 seg = current_segment(pls);
2276
2/6
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 12 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 12 if (seg && seg->key_type == KEY_SAMPLE_AES && pls->is_id3_timestamped &&
2277 ✗ pls->audio_setup_info.codec_id != AV_CODEC_ID_NONE) {
2278 av_assert1(pls->audio_setup_info.codec_id == AV_CODEC_ID_AAC ||
2279 pls->audio_setup_info.codec_id == AV_CODEC_ID_AC3 ||
2280 pls->audio_setup_info.codec_id == AV_CODEC_ID_EAC3);
2281 // Keep this list in sync with ff_hls_senc_read_audio_setup_info()
2282 ✗ in_fmt = av_find_input_format(pls->audio_setup_info.codec_id == AV_CODEC_ID_AAC ? "aac" :
2283 ✗ pls->audio_setup_info.codec_id == AV_CODEC_ID_AC3 ? "ac3" : "eac3");
2284 } else {
2285
1/2
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
 12 pls->ctx->probesize = s->probesize > 0 ? s->probesize : 1024 * 4;
2286
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 pls->ctx->max_analyze_duration = s->max_analyze_duration > 0 ? s->max_analyze_duration : 4 * AV_TIME_BASE;
2287 12 pls->ctx->interrupt_callback = s->interrupt_callback;
2288 12 url = av_strdup(pls->segments[0]->url);
2289 12 ret = av_probe_input_buffer(&pls->pb.pub, &in_fmt, url, NULL, 0, 0);
2290
2291
2/2
✓ Branch 0 taken 65 times.
✓ Branch 1 taken 12 times.
 77 for (int n = 0; n < pls->n_segments; n++)
2292
1/2
✓ Branch 0 taken 65 times.
✗ Branch 1 not taken.
 65 if (ret >= 0)
2293 65 ret = test_segment(s, in_fmt, pls, pls->segments[n]);
2294
2295
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (ret < 0) {
2296 /* Free the ctx - it isn't initialized properly at this point,
2297 * so avformat_close_input shouldn't be called. If
2298 * avformat_open_input fails below, it frees and zeros the
2299 * context, so it doesn't need any special treatment like this. */
2300 ✗ av_log(s, AV_LOG_ERROR, "Error when loading first segment '%s'\n", url);
2301 ✗ avformat_free_context(pls->ctx);
2302 ✗ pls->ctx = NULL;
2303 ✗ av_free(url);
2304 ✗ return ret;
2305 }
2306 12 av_free(url);
2307 }
2308
2309 12 seg = current_segment(pls);
2310
2/4
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 12 times.
 12 if (seg && seg->key_type == KEY_SAMPLE_AES) {
2311 ✗ if (strstr(in_fmt->name, "mov")) {
2312 char key[33];
2313 ✗ ff_data_to_hex(key, pls->key, sizeof(pls->key), 0);
2314 ✗ av_dict_set(&options, "decryption_key", key, 0);
2315 ✗ } else if (!c->crypto_ctx.aes_ctx) {
2316 ✗ c->crypto_ctx.aes_ctx = av_aes_alloc();
2317 ✗ if (!c->crypto_ctx.aes_ctx) {
2318 ✗ avformat_free_context(pls->ctx);
2319 ✗ pls->ctx = NULL;
2320 ✗ return AVERROR(ENOMEM);
2321 }
2322 }
2323 }
2324
2325 12 pls->ctx->pb = &pls->pb.pub;
2326 12 pls->ctx->io_open = nested_io_open;
2327 12 pls->ctx->flags |= s->flags & ~AVFMT_FLAG_CUSTOM_IO;
2328
2329
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 12 times.
 12 if ((ret = ff_copy_whiteblacklists(pls->ctx, s)) < 0)
2330 ✗ return ret;
2331
2332 12 av_dict_copy(&options, c->seg_format_opts, 0);
2333
2334 12 ret = avformat_open_input(&pls->ctx, pls->segments[0]->url, in_fmt, &options);
2335 12 av_dict_free(&options);
2336
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (ret < 0)
2337 ✗ return ret;
2338
2339
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 12 if (pls->id3_deferred_extra && pls->ctx->nb_streams == 1) {
2340 ✗ ff_id3v2_parse_apic(pls->ctx, pls->id3_deferred_extra);
2341 ✗ avformat_queue_attached_pictures(pls->ctx);
2342 ✗ ff_id3v2_parse_priv(pls->ctx, pls->id3_deferred_extra);
2343 ✗ ff_id3v2_free_extra_meta(&pls->id3_deferred_extra);
2344 }
2345
2346
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (pls->is_id3_timestamped == -1)
2347 ✗ av_log(s, AV_LOG_WARNING, "No expected HTTP requests have been made\n");
2348
2349 /*
2350 * For ID3 timestamped raw audio streams we need to detect the packet
2351 * durations to calculate timestamps in fill_timing_for_id3_timestamped_stream(),
2352 * but for other streams we can rely on our user calling avformat_find_stream_info()
2353 * on us if they want to.
2354 */
2355
2/6
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 12 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 12 if (pls->is_id3_timestamped || (pls->n_renditions > 0 && pls->renditions[0]->type == AVMEDIA_TYPE_AUDIO)) {
2356 ✗ seg = current_segment(pls);
2357 ✗ if (seg && seg->key_type == KEY_SAMPLE_AES && pls->audio_setup_info.setup_data_length > 0 &&
2358 ✗ pls->ctx->nb_streams == 1)
2359 ✗ ret = ff_hls_senc_parse_audio_setup_info(pls->ctx->streams[0], &pls->audio_setup_info);
2360 else
2361 ✗ ret = avformat_find_stream_info(pls->ctx, NULL);
2362
2363 ✗ if (ret < 0)
2364 ✗ return ret;
2365 }
2366
2367 12 pls->has_noheader_flag = !!(pls->ctx->ctx_flags & AVFMTCTX_NOHEADER);
2368
2369 /* Create new AVStreams for each stream in this playlist */
2370 12 ret = update_streams_from_subdemuxer(s, pls);
2371
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (ret < 0)
2372 ✗ return ret;
2373
2374 /*
2375 * Copy any metadata from playlist to main streams, but do not set
2376 * event flags.
2377 */
2378
1/2
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
 12 if (pls->n_main_streams)
2379 12 av_dict_copy(&pls->main_streams[0]->metadata, pls->ctx->metadata, 0);
2380
2381
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (pls->is_subtitle) {
2382 ✗ avformat_free_context(pls->ctx);
2383 ✗ pls->ctx = NULL;
2384 ✗ pls->needed = 0;
2385 ✗ pls->main_streams[0]->discard = AVDISCARD_ALL;
2386 }
2387
2388 12 add_metadata_from_renditions(s, pls, AVMEDIA_TYPE_AUDIO);
2389 12 add_metadata_from_renditions(s, pls, AVMEDIA_TYPE_VIDEO);
2390 12 add_metadata_from_renditions(s, pls, AVMEDIA_TYPE_SUBTITLE);
2391 }
2392
2393 12 update_noheader_flag(s);
2394
2395 12 return 0;
2396 }
2397
2398 6369 static int recheck_discard_flags(AVFormatContext *s, int first)
2399 {
2400 6369 HLSContext *c = s->priv_data;
2401 6369 int i, changed = 0;
2402 int cur_needed;
2403
2404 /* Check if any new streams are needed */
2405
2/2
✓ Branch 0 taken 6369 times.
✓ Branch 1 taken 6369 times.
 12738 for (i = 0; i < c->n_playlists; i++) {
2406 6369 struct playlist *pls = c->playlists[i];
2407
2408 6369 cur_needed = playlist_needed(c->playlists[i]);
2409
2410
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6369 times.
 6369 if (pls->broken) {
2411 ✗ continue;
2412 }
2413
2/4
✓ Branch 0 taken 6369 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 6369 times.
 6369 if (cur_needed && !pls->needed) {
2414 ✗ pls->needed = 1;
2415 ✗ changed = 1;
2416 ✗ pls->cur_seq_no = select_cur_seq_no(c, pls);
2417 ✗ pls->pb.pub.eof_reached = 0;
2418 ✗ if (c->cur_timestamp != AV_NOPTS_VALUE) {
2419 /* catch up */
2420 ✗ pls->seek_timestamp = c->cur_timestamp;
2421 ✗ pls->seek_flags = AVSEEK_FLAG_ANY;
2422 ✗ pls->seek_stream_index = -1;
2423 }
2424 ✗ av_log(s, AV_LOG_INFO, "Now receiving playlist %d, segment %"PRId64"\n", i, pls->cur_seq_no);
2425
3/6
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 6357 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 12 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 6369 } else if (first && !cur_needed && pls->needed) {
2426 ✗ ff_format_io_close(pls->parent, &pls->input);
2427 ✗ pls->input_read_done = 0;
2428 ✗ ff_format_io_close(pls->parent, &pls->input_next);
2429 ✗ pls->input_next_requested = 0;
2430 ✗ if (pls->is_subtitle)
2431 ✗ avformat_close_input(&pls->ctx);
2432 ✗ pls->needed = 0;
2433 ✗ changed = 1;
2434 ✗ av_log(s, AV_LOG_INFO, "No longer receiving playlist %d\n", i);
2435 }
2436 }
2437 6369 return changed;
2438 }
2439
2440 ✗ static void fill_timing_for_id3_timestamped_stream(struct playlist *pls)
2441 {
2442 ✗ if (pls->id3_offset >= 0) {
2443 ✗ pls->pkt->dts = pls->id3_mpegts_timestamp +
2444 ✗ av_rescale_q(pls->id3_offset,
2445 ✗ pls->ctx->streams[pls->pkt->stream_index]->time_base,
2446 ✗ MPEG_TIME_BASE_Q);
2447 ✗ if (pls->pkt->duration)
2448 ✗ pls->id3_offset += pls->pkt->duration;
2449 else
2450 ✗ pls->id3_offset = -1;
2451 } else {
2452 /* there have been packets with unknown duration
2453 * since the last id3 tag, should not normally happen */
2454 ✗ pls->pkt->dts = AV_NOPTS_VALUE;
2455 }
2456
2457 ✗ if (pls->pkt->duration)
2458 ✗ pls->pkt->duration = av_rescale_q(pls->pkt->duration,
2459 ✗ pls->ctx->streams[pls->pkt->stream_index]->time_base,
2460 ✗ MPEG_TIME_BASE_Q);
2461
2462 ✗ pls->pkt->pts = AV_NOPTS_VALUE;
2463 ✗ }
2464
2465 12 static AVRational get_timebase(struct playlist *pls)
2466 {
2467
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (pls->is_id3_timestamped)
2468 ✗ return MPEG_TIME_BASE_Q;
2469
2470 12 return pls->ctx->streams[pls->pkt->stream_index]->time_base;
2471 }
2472
2473 ✗ static int compare_ts_with_wrapdetect(int64_t ts_a, struct playlist *pls_a,
2474 int64_t ts_b, struct playlist *pls_b)
2475 {
2476 ✗ int64_t scaled_ts_a = av_rescale_q(ts_a, get_timebase(pls_a), MPEG_TIME_BASE_Q);
2477 ✗ int64_t scaled_ts_b = av_rescale_q(ts_b, get_timebase(pls_b), MPEG_TIME_BASE_Q);
2478
2479 ✗ return av_compare_mod(scaled_ts_a, scaled_ts_b, 1LL << 33);
2480 }
2481
2482 6369 static int hls_read_packet(AVFormatContext *s, AVPacket *pkt)
2483 {
2484 6369 HLSContext *c = s->priv_data;
2485 6369 int ret, i, minplaylist = -1;
2486
2487 6369 recheck_discard_flags(s, c->first_packet);
2488 6369 c->first_packet = 0;
2489
2490
2/2
✓ Branch 0 taken 6369 times.
✓ Branch 1 taken 6369 times.
 12738 for (i = 0; i < c->n_playlists; i++) {
2491 6369 struct playlist *pls = c->playlists[i];
2492 /* Make sure we've got one buffered packet from each open playlist
2493 * stream */
2494
2/4
✓ Branch 0 taken 6369 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 6369 times.
✗ Branch 3 not taken.
 6369 if (pls->needed && !pls->pkt->data) {
2495 ✗ while (1) {
2496 int64_t ts_diff;
2497 AVRational tb;
2498 6369 struct segment *seg = NULL;
2499
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6369 times.
 6369 if (pls->is_subtitle)
2500 ✗ ret = read_subtitle_packet(pls, pls->pkt);
2501 else
2502 6369 ret = av_read_frame(pls->ctx, pls->pkt);
2503
2/2
✓ Branch 0 taken 11 times.
✓ Branch 1 taken 6358 times.
 6369 if (ret < 0) {
2504
1/4
✗ Branch 1 not taken.
✓ Branch 2 taken 11 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
 11 if (!avio_feof(&pls->pb.pub) && ret != AVERROR_EOF)
2505 ✗ return ret;
2506 6369 break;
2507 } else {
2508 /* stream_index check prevents matching picture attachments etc. */
2509
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 6358 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
 6358 if (pls->is_id3_timestamped && pls->pkt->stream_index == 0) {
2510 /* audio elementary streams are id3 timestamped */
2511 ✗ fill_timing_for_id3_timestamped_stream(pls);
2512 }
2513
2514
2/2
✓ Branch 0 taken 12 times.
✓ Branch 1 taken 6346 times.
 6358 if (c->first_timestamp == AV_NOPTS_VALUE &&
2515
1/2
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
 12 pls->pkt->dts != AV_NOPTS_VALUE)
2516 12 c->first_timestamp = av_rescale_q(pls->pkt->dts,
2517 12 get_timebase(pls), AV_TIME_BASE_Q);
2518 }
2519
2520 6358 seg = current_segment(pls);
2521
3/6
✓ Branch 0 taken 6356 times.
✓ Branch 1 taken 2 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 6356 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 6358 if (seg && seg->key_type == KEY_SAMPLE_AES && !strstr(pls->ctx->iformat->name, "mov")) {
2522 ✗ enum AVCodecID codec_id = pls->ctx->streams[pls->pkt->stream_index]->codecpar->codec_id;
2523 ✗ memcpy(c->crypto_ctx.iv, seg->iv, sizeof(seg->iv));
2524 ✗ memcpy(c->crypto_ctx.key, pls->key, sizeof(pls->key));
2525 ✗ ff_hls_senc_decrypt_frame(codec_id, &c->crypto_ctx, pls->pkt);
2526 }
2527
2528
1/2
✓ Branch 0 taken 6358 times.
✗ Branch 1 not taken.
 6358 if (pls->seek_timestamp == AV_NOPTS_VALUE)
2529 6358 break;
2530
2531 ✗ if (pls->seek_stream_index < 0 ||
2532 ✗ pls->seek_stream_index == pls->pkt->stream_index) {
2533
2534 ✗ if (pls->pkt->dts == AV_NOPTS_VALUE) {
2535 ✗ pls->seek_timestamp = AV_NOPTS_VALUE;
2536 ✗ break;
2537 }
2538
2539 ✗ tb = get_timebase(pls);
2540 ✗ ts_diff = av_rescale_rnd(pls->pkt->dts, AV_TIME_BASE,
2541 ✗ tb.den, AV_ROUND_DOWN) -
2542 ✗ pls->seek_timestamp;
2543 ✗ if (ts_diff >= 0 && (pls->seek_flags & AVSEEK_FLAG_ANY ||
2544 ✗ pls->pkt->flags & AV_PKT_FLAG_KEY)) {
2545 ✗ pls->seek_timestamp = AV_NOPTS_VALUE;
2546 ✗ break;
2547 }
2548 }
2549 ✗ av_packet_unref(pls->pkt);
2550 }
2551 }
2552 /* Check if this stream has the packet with the lowest dts */
2553
2/2
✓ Branch 0 taken 6358 times.
✓ Branch 1 taken 11 times.
 6369 if (pls->pkt->data) {
2554 6358 struct playlist *minpls = minplaylist < 0 ?
2555
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6358 times.
 6358 NULL : c->playlists[minplaylist];
2556
1/2
✓ Branch 0 taken 6358 times.
✗ Branch 1 not taken.
 6358 if (minplaylist < 0) {
2557 6358 minplaylist = i;
2558 } else {
2559 ✗ int64_t dts = pls->pkt->dts;
2560 ✗ int64_t mindts = minpls->pkt->dts;
2561
2562 ✗ if (dts == AV_NOPTS_VALUE ||
2563 ✗ (mindts != AV_NOPTS_VALUE && compare_ts_with_wrapdetect(dts, pls, mindts, minpls) < 0))
2564 ✗ minplaylist = i;
2565 }
2566 }
2567 }
2568
2569 /* If we got a packet, return it */
2570
2/2
✓ Branch 0 taken 6358 times.
✓ Branch 1 taken 11 times.
 6369 if (minplaylist >= 0) {
2571 6358 struct playlist *pls = c->playlists[minplaylist];
2572 AVStream *ist;
2573 AVStream *st;
2574
2575 6358 ret = update_streams_from_subdemuxer(s, pls);
2576
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6358 times.
 6358 if (ret < 0) {
2577 ✗ av_packet_unref(pls->pkt);
2578 ✗ return ret;
2579 }
2580
2581 // If sub-demuxer reports updated metadata, copy it to the first stream
2582 // and set its AVSTREAM_EVENT_FLAG_METADATA_UPDATED flag.
2583
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6358 times.
 6358 if (pls->ctx->event_flags & AVFMT_EVENT_FLAG_METADATA_UPDATED) {
2584 ✗ if (pls->n_main_streams) {
2585 ✗ st = pls->main_streams[0];
2586 ✗ av_dict_copy(&st->metadata, pls->ctx->metadata, 0);
2587 ✗ st->event_flags |= AVSTREAM_EVENT_FLAG_METADATA_UPDATED;
2588 }
2589 ✗ pls->ctx->event_flags &= ~AVFMT_EVENT_FLAG_METADATA_UPDATED;
2590 }
2591
2592 /* check if noheader flag has been cleared by the subdemuxer */
2593
3/4
✓ Branch 0 taken 11 times.
✓ Branch 1 taken 6347 times.
✓ Branch 2 taken 11 times.
✗ Branch 3 not taken.
 6358 if (pls->has_noheader_flag && !(pls->ctx->ctx_flags & AVFMTCTX_NOHEADER)) {
2594 11 pls->has_noheader_flag = 0;
2595 11 update_noheader_flag(s);
2596 }
2597
2598
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6358 times.
 6358 if (pls->pkt->stream_index >= pls->n_main_streams) {
2599 ✗ av_log(s, AV_LOG_ERROR, "stream index inconsistency: index %d, %d main streams, %d subdemuxer streams\n",
2600 ✗ pls->pkt->stream_index, pls->n_main_streams, pls->ctx->nb_streams);
2601 ✗ av_packet_unref(pls->pkt);
2602 ✗ return AVERROR_BUG;
2603 }
2604
2605 6358 ist = pls->ctx->streams[pls->pkt->stream_index];
2606 6358 st = pls->main_streams[pls->pkt->stream_index];
2607
2608 6358 av_packet_move_ref(pkt, pls->pkt);
2609 6358 pkt->stream_index = st->index;
2610
2611
1/2
✓ Branch 0 taken 6358 times.
✗ Branch 1 not taken.
 6358 if (pkt->dts != AV_NOPTS_VALUE)
2612 6358 c->cur_timestamp = av_rescale_q(pkt->dts,
2613 ist->time_base,
2614 6358 AV_TIME_BASE_Q);
2615
2616 /* There may be more situations where this would be useful, but this at least
2617 * handles newly probed codecs properly (i.e. request_probe by mpegts). */
2618
2/2
✓ Branch 0 taken 10 times.
✓ Branch 1 taken 6348 times.
 6358 if (ist->codecpar->codec_id != st->codecpar->codec_id) {
2619 10 ret = set_stream_info_from_input_stream(st, pls, ist);
2620
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
 10 if (ret < 0) {
2621 ✗ return ret;
2622 }
2623 }
2624
2625 6358 return 0;
2626 }
2627 11 return AVERROR_EOF;
2628 }
2629
2630 ✗ static int hls_read_seek(AVFormatContext *s, int stream_index,
2631 int64_t timestamp, int flags)
2632 {
2633 ✗ HLSContext *c = s->priv_data;
2634 ✗ struct playlist *seek_pls = NULL;
2635 int i, j;
2636 int stream_subdemuxer_index;
2637 int64_t first_timestamp, seek_timestamp, duration;
2638 int64_t seq_no, seg_start_ts;
2639
2640 ✗ if ((flags & AVSEEK_FLAG_BYTE) || (c->ctx->ctx_flags & AVFMTCTX_UNSEEKABLE))
2641 ✗ return AVERROR(ENOSYS);
2642
2643 ✗ first_timestamp = c->first_timestamp == AV_NOPTS_VALUE ?
2644 ✗ 0 : c->first_timestamp;
2645
2646 ✗ seek_timestamp = av_rescale_rnd(timestamp, AV_TIME_BASE,
2647 ✗ s->streams[stream_index]->time_base.den,
2648 AV_ROUND_DOWN);
2649
2650 ✗ duration = s->duration == AV_NOPTS_VALUE ?
2651 ✗ 0 : s->duration;
2652
2653 ✗ if (0 < duration && duration < seek_timestamp - first_timestamp)
2654 ✗ return AVERROR(EIO);
2655
2656 /* find the playlist with the specified stream */
2657 ✗ for (i = 0; i < c->n_playlists; i++) {
2658 ✗ struct playlist *pls = c->playlists[i];
2659 ✗ for (j = 0; j < pls->n_main_streams; j++) {
2660 ✗ if (pls->main_streams[j] == s->streams[stream_index]) {
2661 ✗ seek_pls = pls;
2662 ✗ stream_subdemuxer_index = j;
2663 ✗ break;
2664 }
2665 }
2666 }
2667 /* check if the timestamp is valid for the playlist with the
2668 * specified stream index */
2669 ✗ if (!seek_pls || !find_timestamp_in_playlist(c, seek_pls, seek_timestamp, &seq_no, &seg_start_ts))
2670 ✗ return AVERROR(EIO);
2671
2672 ✗ if (s->streams[stream_index]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
2673 ✗ flags & AVSEEK_FLAG_BACKWARD && !(flags & AVSEEK_FLAG_ANY)) {
2674 /* Seeking to start of segment ensures we seek to a keyframe located
2675 * before the given timestamp. */
2676 ✗ seek_timestamp = seg_start_ts;
2677 }
2678
2679 /* set segment now so we do not need to search again below */
2680 ✗ seek_pls->cur_seq_no = seq_no;
2681 ✗ seek_pls->seek_stream_index = stream_subdemuxer_index;
2682
2683 ✗ for (i = 0; i < c->n_playlists; i++) {
2684 /* Reset reading */
2685 ✗ struct playlist *pls = c->playlists[i];
2686 ✗ AVIOContext *const pb = &pls->pb.pub;
2687 ✗ ff_format_io_close(pls->parent, &pls->input);
2688 ✗ pls->input_read_done = 0;
2689 ✗ ff_format_io_close(pls->parent, &pls->input_next);
2690 ✗ pls->input_next_requested = 0;
2691 ✗ av_packet_unref(pls->pkt);
2692 ✗ pb->eof_reached = 0;
2693 /* Clear any buffered data */
2694 ✗ pb->buf_end = pb->buf_ptr = pb->buffer;
2695 /* Reset the pos, to let the mpegts/mov demuxer know we've seeked. */
2696 ✗ pb->pos = 0;
2697 /* Flush the packet queue of the subdemuxer. */
2698 ✗ if (pls->ctx)
2699 ✗ ff_read_frame_flush(pls->ctx);
2700 ✗ if (pls->is_subtitle)
2701 ✗ avformat_close_input(&pls->ctx);
2702
2703 /* Reset the init segment so it's re-fetched and served appropiately */
2704 ✗ pls->cur_init_section = NULL;
2705
2706 ✗ pls->seek_timestamp = seek_timestamp;
2707 ✗ pls->seek_flags = flags;
2708
2709 ✗ if (pls != seek_pls) {
2710 /* set closest segment seq_no for playlists not handled above */
2711 ✗ find_timestamp_in_playlist(c, pls, seek_timestamp, &pls->cur_seq_no, NULL);
2712 /* seek the playlist to the given position without taking
2713 * keyframes into account since this playlist does not have the
2714 * specified stream where we should look for the keyframes */
2715 ✗ pls->seek_stream_index = -1;
2716 ✗ pls->seek_flags |= AVSEEK_FLAG_ANY;
2717 }
2718 }
2719
2720 ✗ c->cur_timestamp = seek_timestamp;
2721
2722 ✗ return 0;
2723 }
2724
2725 7211 static int hls_probe(const AVProbeData *p)
2726 {
2727 /* Require #EXTM3U at the start, and either one of the ones below
2728 * somewhere for a proper match. */
2729
2/2
✓ Branch 0 taken 7199 times.
✓ Branch 1 taken 12 times.
 7211 if (strncmp(p->buf, "#EXTM3U", 7))
2730 7199 return 0;
2731
2732
1/2
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
 12 if (strstr(p->buf, "#EXT-X-STREAM-INF:") ||
2733
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 strstr(p->buf, "#EXT-X-TARGETDURATION:") ||
2734 ✗ strstr(p->buf, "#EXT-X-MEDIA-SEQUENCE:")) {
2735
2736
1/6
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 12 int mime_ok = p->mime_type && !(
2737 ✗ av_strcasecmp(p->mime_type, "application/vnd.apple.mpegurl") &&
2738 ✗ av_strcasecmp(p->mime_type, "audio/mpegurl")
2739 );
2740
2741
1/6
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 12 int mime_x = p->mime_type && !(
2742 ✗ av_strcasecmp(p->mime_type, "audio/x-mpegurl") &&
2743 ✗ av_strcasecmp(p->mime_type, "application/x-mpegurl")
2744 );
2745
2746
2/4
✓ Branch 0 taken 12 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 12 times.
✗ Branch 3 not taken.
 12 if (!mime_ok &&
2747
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 !mime_x &&
2748
0/2
✗ Branch 1 not taken.
✗ Branch 2 not taken.
 12 !av_match_ext (p->filename, "m3u8,m3u") &&
2749 ✗ ff_match_url_ext(p->filename, "m3u8,m3u") <= 0) {
2750 ✗ av_log(NULL, AV_LOG_ERROR, "Not detecting m3u8/hls with non standard extension and non standard mime type\n");
2751 ✗ return 0;
2752 }
2753
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12 times.
 12 if (mime_x)
2754 ✗ av_log(NULL, AV_LOG_WARNING, "mime type is not rfc8216 compliant\n");
2755
2756 12 return AVPROBE_SCORE_MAX;
2757 }
2758 ✗ return 0;
2759 }
2760
2761 #define OFFSET(x) offsetof(HLSContext, x)
2762 #define FLAGS AV_OPT_FLAG_DECODING_PARAM
2763 static const AVOption hls_options[] = {
2764 {"live_start_index", "segment index to start live streams at (negative values are from the end)",
2765 OFFSET(live_start_index), AV_OPT_TYPE_INT, {.i64 = -3}, INT_MIN, INT_MAX, FLAGS},
2766 {"prefer_x_start", "prefer to use #EXT-X-START if it's in playlist instead of live_start_index",
2767 OFFSET(prefer_x_start), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS},
2768 {"allowed_extensions", "List of file extensions that hls is allowed to access",
2769 OFFSET(allowed_extensions), AV_OPT_TYPE_STRING,
2770 {.str = "3gp,aac,avi,ac3,eac3,flac,mkv,m3u8,m4a,m4s,m4v,mpg,mov,mp2,mp3,mp4,mpeg,mpegts,ogg,ogv,oga,ts,vob,vtt,wav,webvtt"},
2771 INT_MIN, INT_MAX, FLAGS},
2772 {"extension_picky", "Be picky with all extensions matching",
2773 OFFSET(extension_picky), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FLAGS},
2774 {"max_reload", "Maximum number of times a insufficient list is attempted to be reloaded",
2775 OFFSET(max_reload), AV_OPT_TYPE_INT, {.i64 = 100}, 0, INT_MAX, FLAGS},
2776 {"m3u8_hold_counters", "The maximum number of times to load m3u8 when it refreshes without new segments",
2777 OFFSET(m3u8_hold_counters), AV_OPT_TYPE_INT, {.i64 = 1000}, 0, INT_MAX, FLAGS},
2778 {"http_persistent", "Use persistent HTTP connections",
2779 OFFSET(http_persistent), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FLAGS },
2780 {"http_multiple", "Use multiple HTTP connections for fetching segments",
2781 OFFSET(http_multiple), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, FLAGS},
2782 {"http_seekable", "Use HTTP partial requests, 0 = disable, 1 = enable, -1 = auto",
2783 OFFSET(http_seekable), AV_OPT_TYPE_BOOL, { .i64 = -1}, -1, 1, FLAGS},
2784 {"seg_format_options", "Set options for segment demuxer",
2785 OFFSET(seg_format_opts), AV_OPT_TYPE_DICT, {.str = NULL}, 0, 0, FLAGS},
2786 {"seg_max_retry", "Maximum number of times to reload a segment on error.",
2787 OFFSET(seg_max_retry), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, FLAGS},
2788 {NULL}
2789 };
2790
2791 static const AVClass hls_class = {
2792 .class_name = "hls demuxer",
2793 .item_name = av_default_item_name,
2794 .option = hls_options,
2795 .version = LIBAVUTIL_VERSION_INT,
2796 };
2797
2798 const FFInputFormat ff_hls_demuxer = {
2799 .p.name = "hls",
2800 .p.long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
2801 .p.priv_class = &hls_class,
2802 .p.flags = AVFMT_NOGENSEARCH | AVFMT_TS_DISCONT | AVFMT_NO_BYTE_SEEK,
2803 .priv_data_size = sizeof(HLSContext),
2804 .flags_internal = FF_INFMT_FLAG_INIT_CLEANUP,
2805 .read_probe = hls_probe,
2806 .read_header = hls_read_header,
2807 .read_packet = hls_read_packet,
2808 .read_close = hls_close,
2809 .read_seek = hls_read_seek,
2810 };
2811