2 * Apple HTTP Live Streaming segmenter
3 * Copyright (c) 2012, Luca Barbato
4 * Copyright (c) 2017 Akamai Technologies, Inc.
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
33 #include <openssl/rand.h>
36 #include "libavutil/avassert.h"
37 #include "libavutil/mathematics.h"
38 #include "libavutil/parseutils.h"
39 #include "libavutil/avstring.h"
40 #include "libavutil/intreadwrite.h"
41 #include "libavutil/random_seed.h"
42 #include "libavutil/opt.h"
43 #include "libavutil/log.h"
44 #include "libavutil/time.h"
45 #include "libavutil/time_internal.h"
48 #include "avio_internal.h"
49 #if CONFIG_HTTP_PROTOCOL
52 #include "hlsplaylist.h"
54 #include "os_support.h"
57 HLS_START_SEQUENCE_AS_START_NUMBER = 0,
58 HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH = 1,
59 HLS_START_SEQUENCE_AS_FORMATTED_DATETIME = 2, // YYYYMMDDhhmmss
60 HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH = 3,
61 HLS_START_SEQUENCE_LAST, // unused
62 } StartSequenceSourceType;
65 CODEC_ATTRIBUTE_WRITTEN = 0,
66 CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN,
67 } CodecAttributeStatus;
70 #define LINE_BUFFER_SIZE MAX_URL_SIZE
71 #define HLS_MICROSECOND_UNIT 1000000
72 #define POSTFIX_PATTERN "_%d"
74 typedef struct HLSSegment {
75 char filename[MAX_URL_SIZE];
76 char sub_filename[MAX_URL_SIZE];
77 double duration; /* in seconds */
82 int64_t keyframe_size;
83 unsigned var_stream_idx;
85 char key_uri[LINE_BUFFER_SIZE + 1];
86 char iv_string[KEYSIZE*2 + 1];
88 struct HLSSegment *next;
91 typedef enum HLSFlags {
92 // Generate a single media file and use byte ranges in the playlist.
93 HLS_SINGLE_FILE = (1 << 0),
94 HLS_DELETE_SEGMENTS = (1 << 1),
95 HLS_ROUND_DURATIONS = (1 << 2),
96 HLS_DISCONT_START = (1 << 3),
97 HLS_OMIT_ENDLIST = (1 << 4),
98 HLS_SPLIT_BY_TIME = (1 << 5),
99 HLS_APPEND_LIST = (1 << 6),
100 HLS_PROGRAM_DATE_TIME = (1 << 7),
101 HLS_SECOND_LEVEL_SEGMENT_INDEX = (1 << 8), // include segment index in segment filenames when use_localtime e.g.: %%03d
102 HLS_SECOND_LEVEL_SEGMENT_DURATION = (1 << 9), // include segment duration (microsec) in segment filenames when use_localtime e.g.: %%09t
103 HLS_SECOND_LEVEL_SEGMENT_SIZE = (1 << 10), // include segment size (bytes) in segment filenames when use_localtime e.g.: %%014s
104 HLS_TEMP_FILE = (1 << 11),
105 HLS_PERIODIC_REKEY = (1 << 12),
106 HLS_INDEPENDENT_SEGMENTS = (1 << 13),
107 HLS_I_FRAMES_ONLY = (1 << 14),
115 typedef struct VariantStream {
116 unsigned var_stream_idx;
119 ff_const59 AVOutputFormat *oformat;
120 ff_const59 AVOutputFormat *vtt_oformat;
123 int init_range_length;
124 uint8_t *temp_buffer;
125 uint8_t *init_buffer;
127 AVFormatContext *avf;
128 AVFormatContext *vtt_avf;
133 int start_pts_from_audio;
134 double dpp; // duration per packet
137 int64_t video_lastpos;
138 int64_t video_keyframe_pos;
139 int64_t video_keyframe_size;
140 double duration; // last segment duration computed so far, in seconds
141 int64_t start_pos; // last segment starting position
142 int64_t size; // last segment size
144 int discontinuity_set;
146 int reference_stream_index;
148 HLSSegment *segments;
149 HLSSegment *last_segment;
150 HLSSegment *old_segments;
157 double initial_prog_date_time;
158 char current_segment_final_filename_fmt[MAX_URL_SIZE]; // when renaming segments
160 char *fmp4_init_filename;
161 char *base_output_dirname;
165 char key_file[LINE_BUFFER_SIZE + 1];
166 char key_uri[LINE_BUFFER_SIZE + 1];
167 char key_string[KEYSIZE*2 + 1];
168 char iv_string[KEYSIZE*2 + 1];
171 char codec_attr[128];
172 CodecAttributeStatus attr_status;
173 unsigned int nb_streams;
174 int m3u8_created; /* status of media play-list creation */
175 int is_default; /* default status of audio group */
176 const char *language; /* audio lauguage name */
177 const char *agroup; /* audio group name */
178 const char *sgroup; /* subtitle group name */
179 const char *ccgroup; /* closed caption group name */
180 const char *varname; /* variant name */
183 typedef struct ClosedCaptionsStream {
184 const char *ccgroup; /* closed caption group name */
185 const char *instreamid; /* closed captions INSTREAM-ID */
186 const char *language; /* closed captions langauge */
187 } ClosedCaptionsStream;
189 typedef struct HLSContext {
190 const AVClass *class; // Class for private options.
191 int64_t start_sequence;
192 uint32_t start_sequence_source_type; // enum StartSequenceSourceType
194 float time; // Set by a private option.
195 float init_time; // Set by a private option.
196 int max_nb_segments; // Set by a private option.
197 int hls_delete_threshold; // Set by a private option.
199 int wrap; // Set by a private option.
201 uint32_t flags; // enum HLSFlags
202 uint32_t pl_type; // enum PlaylistType
203 char *segment_filename;
204 char *fmp4_init_filename;
206 int resend_init_file; ///< resend init file into disk after refresh m3u8
208 int use_localtime; ///< flag to expand filename with localtime
209 int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
211 int64_t recording_time;
212 int64_t max_seg_size; // every segment file max size
215 char *vtt_format_options_str;
216 char *subtitle_filename;
217 AVDictionary *format_options;
227 char key_file[LINE_BUFFER_SIZE + 1];
228 char key_uri[LINE_BUFFER_SIZE + 1];
229 char key_string[KEYSIZE*2 + 1];
230 char iv_string[KEYSIZE*2 + 1];
231 AVDictionary *vtt_format_options;
236 VariantStream *var_streams;
237 unsigned int nb_varstreams;
238 ClosedCaptionsStream *cc_streams;
239 unsigned int nb_ccstreams;
241 int master_m3u8_created; /* status of master play-list creation */
242 char *master_m3u8_url; /* URL of the master m3u8 file */
243 int version; /* HLS version */
244 char *var_stream_map; /* user specified variant stream map string */
245 char *cc_stream_map; /* user specified closed caption streams map string */
246 char *master_pl_name;
247 unsigned int master_publish_rate;
249 AVIOContext *m3u8_out;
250 AVIOContext *sub_m3u8_out;
252 int ignore_io_errors;
254 int has_default_key; /* has DEFAULT field of var_stream_map */
255 int has_video_m3u8; /* has video stream m3u8 list */
258 static int hlsenc_io_open(AVFormatContext *s, AVIOContext **pb, char *filename,
259 AVDictionary **options)
261 HLSContext *hls = s->priv_data;
262 int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
263 int err = AVERROR_MUXER_NOT_FOUND;
264 if (!*pb || !http_base_proto || !hls->http_persistent) {
265 err = s->io_open(s, pb, filename, AVIO_FLAG_WRITE, options);
266 #if CONFIG_HTTP_PROTOCOL
268 URLContext *http_url_context = ffio_geturlcontext(*pb);
269 av_assert0(http_url_context);
270 err = ff_http_do_new_request(http_url_context, filename);
272 ff_format_io_close(s, pb);
279 static int hlsenc_io_close(AVFormatContext *s, AVIOContext **pb, char *filename)
281 HLSContext *hls = s->priv_data;
282 int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
286 if (!http_base_proto || !hls->http_persistent || hls->key_info_file || hls->encrypt) {
287 ff_format_io_close(s, pb);
288 #if CONFIG_HTTP_PROTOCOL
290 URLContext *http_url_context = ffio_geturlcontext(*pb);
291 av_assert0(http_url_context);
293 ffurl_shutdown(http_url_context, AVIO_FLAG_WRITE);
294 ret = ff_http_get_shutdown_status(http_url_context);
300 static void set_http_options(AVFormatContext *s, AVDictionary **options, HLSContext *c)
302 int http_base_proto = ff_is_http_proto(s->url);
305 av_dict_set(options, "method", c->method, 0);
306 } else if (http_base_proto) {
307 av_dict_set(options, "method", "PUT", 0);
310 av_dict_set(options, "user_agent", c->user_agent, 0);
311 if (c->http_persistent)
312 av_dict_set_int(options, "multiple_requests", 1, 0);
314 av_dict_set_int(options, "timeout", c->timeout, 0);
316 av_dict_set(options, "headers", c->headers, 0);
319 static void write_codec_attr(AVStream *st, VariantStream *vs)
321 int codec_strlen = strlen(vs->codec_attr);
324 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
326 if (vs->attr_status == CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN)
329 if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
330 uint8_t *data = st->codecpar->extradata;
331 if (data && (data[0] | data[1] | data[2]) == 0 && data[3] == 1 && (data[4] & 0x1F) == 7) {
332 snprintf(attr, sizeof(attr),
333 "avc1.%02x%02x%02x", data[5], data[6], data[7]);
337 } else if (st->codecpar->codec_id == AV_CODEC_ID_MP2) {
338 snprintf(attr, sizeof(attr), "mp4a.40.33");
339 } else if (st->codecpar->codec_id == AV_CODEC_ID_MP3) {
340 snprintf(attr, sizeof(attr), "mp4a.40.34");
341 } else if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
342 /* TODO : For HE-AAC, HE-AACv2, the last digit needs to be set to 5 and 29 respectively */
343 snprintf(attr, sizeof(attr), "mp4a.40.2");
344 } else if (st->codecpar->codec_id == AV_CODEC_ID_AC3) {
345 snprintf(attr, sizeof(attr), "ac-3");
346 } else if (st->codecpar->codec_id == AV_CODEC_ID_EAC3) {
347 snprintf(attr, sizeof(attr), "ec-3");
351 // Don't write the same attribute multiple times
352 if (!av_stristr(vs->codec_attr, attr)) {
353 snprintf(vs->codec_attr + codec_strlen,
354 sizeof(vs->codec_attr) - codec_strlen,
355 "%s%s", codec_strlen ? "," : "", attr);
360 vs->codec_attr[0] = '\0';
361 vs->attr_status = CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN;
365 static int replace_str_data_in_filename(char **s, const char *filename, char placeholder, const char *datastring)
374 av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
381 if (c == '%' && *(p+1) == '%') // %%
383 else if (c == '%' && *(p+1) == placeholder) {
384 av_bprintf(&buf, "%s", datastring);
391 if (addchar_count > 0) {
392 av_bprint_append_data(&buf, p, addchar_count);
396 if (!av_bprint_is_complete(&buf)) {
397 av_bprint_finalize(&buf, NULL);
398 return AVERROR(ENOMEM);
400 if ((ret = av_bprint_finalize(&buf, s)) < 0)
405 static int replace_int_data_in_filename(char **s, const char *filename, char placeholder, int64_t number)
409 int nd, addchar_count;
414 av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
421 if (c == '%' && *(p+1) == '%') // %%
423 else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) {
426 while (av_isdigit(*(p + addchar_count))) {
427 nd = nd * 10 + *(p + addchar_count) - '0';
431 if (*(p + addchar_count) == placeholder) {
432 av_bprintf(&buf, "%0*"PRId64, (number < 0) ? nd : nd++, number);
433 p += (addchar_count + 1);
441 av_bprint_append_data(&buf, p, addchar_count);
444 if (!av_bprint_is_complete(&buf)) {
445 av_bprint_finalize(&buf, NULL);
446 return AVERROR(ENOMEM);
448 if ((ret = av_bprint_finalize(&buf, s)) < 0)
453 static void write_styp(AVIOContext *pb)
456 ffio_wfourcc(pb, "styp");
457 ffio_wfourcc(pb, "msdh");
458 avio_wb32(pb, 0); /* minor */
459 ffio_wfourcc(pb, "msdh");
460 ffio_wfourcc(pb, "msix");
463 static int flush_dynbuf(VariantStream *vs, int *range_length)
465 AVFormatContext *ctx = vs->avf;
468 return AVERROR(EINVAL);
472 av_write_frame(ctx, NULL);
475 *range_length = avio_close_dyn_buf(ctx->pb, &vs->temp_buffer);
477 avio_write(vs->out, vs->temp_buffer, *range_length);
481 return avio_open_dyn_buf(&ctx->pb);
484 static void reflush_dynbuf(VariantStream *vs, int *range_length)
487 avio_write(vs->out, vs->temp_buffer, *range_length);
491 #define SEPARATOR '\\'
493 #define SEPARATOR '/'
496 static int hls_delete_file(HLSContext *hls, AVFormatContext *avf,
497 const char *path, const char *proto)
499 if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
500 AVDictionary *opt = NULL;
501 AVIOContext *out = NULL;
503 av_dict_set(&opt, "method", "DELETE", 0);
504 ret = avf->io_open(avf, &out, path, AVIO_FLAG_WRITE, &opt);
507 return hls->ignore_io_errors ? 1 : ret;
508 ff_format_io_close(avf, &out);
509 } else if (unlink(path) < 0) {
510 av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
511 path, strerror(errno));
516 static int hls_delete_old_segments(AVFormatContext *s, HLSContext *hls,
520 HLSSegment *segment, *previous_segment = NULL;
521 float playlist_duration = 0.0f;
525 const char *dirname = NULL;
526 char *dirname_r = NULL;
527 char *dirname_repl = NULL;
528 const char *vtt_dirname = NULL;
529 char *vtt_dirname_r = NULL;
530 const char *proto = NULL;
532 av_bprint_init(&path, 0, AV_BPRINT_SIZE_UNLIMITED);
534 segment = vs->segments;
536 playlist_duration += segment->duration;
537 segment = segment->next;
540 segment = vs->old_segments;
543 playlist_duration -= segment->duration;
544 previous_segment = segment;
545 segment = previous_segment->next;
547 if (playlist_duration <= -previous_segment->duration) {
548 previous_segment->next = NULL;
551 if (segment_cnt >= hls->hls_delete_threshold) {
552 previous_segment->next = NULL;
557 if (segment && !hls->use_localtime_mkdir) {
558 dirname_r = hls->segment_filename ? av_strdup(hls->segment_filename): av_strdup(vs->avf->url);
559 dirname = av_dirname(dirname_r);
562 /* if %v is present in the file's directory
563 * all segment belongs to the same variant, so do it only once before the loop*/
564 if (dirname && av_stristr(dirname, "%v")) {
566 if (replace_int_data_in_filename(&dirname_repl, dirname, 'v', segment->var_stream_idx) < 1) {
567 ret = AVERROR(EINVAL);
571 if (replace_str_data_in_filename(&dirname_repl, dirname, 'v', vs->varname) < 1) {
572 ret = AVERROR(EINVAL);
577 dirname = dirname_repl;
581 av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n",
583 if (!hls->use_localtime_mkdir) // segment->filename contains basename only
584 av_bprintf(&path, "%s%c", dirname, SEPARATOR);
585 av_bprintf(&path, "%s", segment->filename);
587 if (!av_bprint_is_complete(&path)) {
588 ret = AVERROR(ENOMEM);
592 proto = avio_find_protocol_name(s->url);
593 if (ret = hls_delete_file(hls, vs->avf, path.str, proto))
596 if ((segment->sub_filename[0] != '\0')) {
597 vtt_dirname_r = av_strdup(vs->vtt_avf->url);
598 vtt_dirname = av_dirname(vtt_dirname_r);
600 av_bprint_clear(&path);
601 av_bprintf(&path, "%s%c%s", vtt_dirname, SEPARATOR,
602 segment->sub_filename);
603 av_freep(&vtt_dirname_r);
605 if (!av_bprint_is_complete(&path)) {
606 ret = AVERROR(ENOMEM);
610 if (ret = hls_delete_file(hls, vs->vtt_avf, path.str, proto))
613 av_bprint_clear(&path);
614 previous_segment = segment;
615 segment = previous_segment->next;
616 av_freep(&previous_segment);
620 av_bprint_finalize(&path, NULL);
621 av_freep(&dirname_r);
622 av_freep(&dirname_repl);
627 static int randomize(uint8_t *buf, int len)
630 gcry_randomize(buf, len, GCRY_VERY_STRONG_RANDOM);
633 if (RAND_bytes(buf, len))
636 return AVERROR(ENOSYS);
638 return AVERROR(EINVAL);
641 static int do_encrypt(AVFormatContext *s, VariantStream *vs)
643 HLSContext *hls = s->priv_data;
647 uint8_t key[KEYSIZE];
648 char * key_basename_source = (hls->master_m3u8_url) ? hls->master_m3u8_url : s->url;
650 len = strlen(key_basename_source) + 4 + 1;
651 hls->key_basename = av_mallocz(len);
652 if (!hls->key_basename)
653 return AVERROR(ENOMEM);
655 av_strlcpy(hls->key_basename, key_basename_source, len);
656 av_strlcat(hls->key_basename, ".key", len);
659 av_strlcpy(hls->key_file, hls->key_url, sizeof(hls->key_file));
660 av_strlcpy(hls->key_uri, hls->key_url, sizeof(hls->key_uri));
662 av_strlcpy(hls->key_file, hls->key_basename, sizeof(hls->key_file));
663 av_strlcpy(hls->key_uri, hls->key_basename, sizeof(hls->key_uri));
666 if (!*hls->iv_string) {
667 uint8_t iv[16] = { 0 };
671 AV_WB64(iv + 8, vs->sequence);
673 memcpy(iv, hls->iv, sizeof(iv));
675 ff_data_to_hex(buf, iv, sizeof(iv), 0);
677 memcpy(hls->iv_string, buf, sizeof(hls->iv_string));
680 if (!*hls->key_uri) {
681 av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
682 return AVERROR(EINVAL);
685 if (!*hls->key_file) {
686 av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
687 return AVERROR(EINVAL);
690 if (!*hls->key_string) {
691 AVDictionary *options = NULL;
693 if ((ret = randomize(key, sizeof(key))) < 0) {
694 av_log(s, AV_LOG_ERROR, "Cannot generate a strong random key\n");
698 memcpy(key, hls->key, sizeof(key));
701 ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
702 set_http_options(s, &options, hls);
703 ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_WRITE, &options);
704 av_dict_free(&options);
707 avio_seek(pb, 0, SEEK_CUR);
708 avio_write(pb, key, KEYSIZE);
715 static int hls_encryption_start(AVFormatContext *s, VariantStream *vs)
717 HLSContext *hls = s->priv_data;
720 uint8_t key[KEYSIZE];
721 AVDictionary *options = NULL;
723 set_http_options(s, &options, hls);
724 ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, &options);
725 av_dict_free(&options);
727 av_log(hls, AV_LOG_ERROR,
728 "error opening key info file %s\n", hls->key_info_file);
732 ff_get_line(pb, vs->key_uri, sizeof(vs->key_uri));
733 vs->key_uri[strcspn(vs->key_uri, "\r\n")] = '\0';
735 ff_get_line(pb, vs->key_file, sizeof(vs->key_file));
736 vs->key_file[strcspn(vs->key_file, "\r\n")] = '\0';
738 ff_get_line(pb, vs->iv_string, sizeof(vs->iv_string));
739 vs->iv_string[strcspn(vs->iv_string, "\r\n")] = '\0';
741 ff_format_io_close(s, &pb);
744 av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
745 return AVERROR(EINVAL);
748 if (!*vs->key_file) {
749 av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
750 return AVERROR(EINVAL);
753 set_http_options(s, &options, hls);
754 ret = s->io_open(s, &pb, vs->key_file, AVIO_FLAG_READ, &options);
755 av_dict_free(&options);
757 av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", vs->key_file);
761 ret = avio_read(pb, key, sizeof(key));
762 ff_format_io_close(s, &pb);
763 if (ret != sizeof(key)) {
764 av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", vs->key_file);
765 if (ret >= 0 || ret == AVERROR_EOF)
766 ret = AVERROR(EINVAL);
769 ff_data_to_hex(vs->key_string, key, sizeof(key), 0);
774 static int hls_mux_init(AVFormatContext *s, VariantStream *vs)
776 AVDictionary *options = NULL;
777 HLSContext *hls = s->priv_data;
779 AVFormatContext *vtt_oc = NULL;
780 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
781 int remaining_options;
784 ret = avformat_alloc_output_context2(&vs->avf, vs->oformat, NULL, NULL);
789 oc->url = av_strdup("");
791 return AVERROR(ENOMEM);
793 oc->interrupt_callback = s->interrupt_callback;
794 oc->max_delay = s->max_delay;
795 oc->opaque = s->opaque;
796 oc->io_open = s->io_open;
797 oc->io_close = s->io_close;
798 oc->strict_std_compliance = s->strict_std_compliance;
799 av_dict_copy(&oc->metadata, s->metadata, 0);
801 if (vs->vtt_oformat) {
802 ret = avformat_alloc_output_context2(&vs->vtt_avf, vs->vtt_oformat, NULL, NULL);
805 vtt_oc = vs->vtt_avf;
806 av_dict_copy(&vtt_oc->metadata, s->metadata, 0);
809 for (i = 0; i < vs->nb_streams; i++) {
811 AVFormatContext *loc;
812 if (vs->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
817 if (!(st = avformat_new_stream(loc, NULL)))
818 return AVERROR(ENOMEM);
819 avcodec_parameters_copy(st->codecpar, vs->streams[i]->codecpar);
820 if (!oc->oformat->codec_tag ||
821 av_codec_get_id (oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_tag) == st->codecpar->codec_id ||
822 av_codec_get_tag(oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_id) <= 0) {
823 st->codecpar->codec_tag = vs->streams[i]->codecpar->codec_tag;
825 st->codecpar->codec_tag = 0;
828 st->sample_aspect_ratio = vs->streams[i]->sample_aspect_ratio;
829 st->time_base = vs->streams[i]->time_base;
830 av_dict_copy(&st->metadata, vs->streams[i]->metadata, 0);
836 if (hls->segment_type == SEGMENT_TYPE_FMP4 && hls->max_seg_size > 0) {
837 if (hls->http_persistent > 0) {
838 //TODO: Support fragment fmp4 for http persistent in HLS muxer.
839 av_log(s, AV_LOG_WARNING, "http persistent mode is currently unsupported for fragment mp4 in the HLS muxer.\n");
841 if (hls->max_seg_size > 0) {
842 av_log(s, AV_LOG_WARNING, "Multi-file byterange mode is currently unsupported in the HLS muxer.\n");
843 return AVERROR_PATCHWELCOME;
847 if ((ret = avio_open_dyn_buf(&oc->pb)) < 0)
850 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
851 set_http_options(s, &options, hls);
852 if (byterange_mode) {
853 ret = hlsenc_io_open(s, &vs->out, vs->basename, &options);
855 ret = hlsenc_io_open(s, &vs->out, vs->base_output_dirname, &options);
857 av_dict_free(&options);
860 av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", vs->fmp4_init_filename);
864 av_dict_copy(&options, hls->format_options, 0);
865 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
866 av_dict_set(&options, "fflags", "-autobsf", 0);
867 av_dict_set(&options, "movflags", "+frag_custom+dash+delay_moov", AV_DICT_APPEND);
869 /* We only require one PAT/PMT per segment. */
871 snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1);
872 av_dict_set(&options, "sdt_period", period, AV_DICT_DONT_OVERWRITE);
873 av_dict_set(&options, "pat_period", period, AV_DICT_DONT_OVERWRITE);
875 ret = avformat_init_output(oc, &options);
876 remaining_options = av_dict_count(options);
877 av_dict_free(&options);
880 if (remaining_options) {
881 av_log(s, AV_LOG_ERROR, "Some of the provided format options are not recognized\n");
882 return AVERROR(EINVAL);
888 static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename)
891 if (!av_strcasecmp(segment->filename,filename))
893 segment = segment->next;
895 return (HLSSegment *) NULL;
898 static int sls_flags_filename_process(struct AVFormatContext *s, HLSContext *hls,
899 VariantStream *vs, HLSSegment *en,
900 double duration, int64_t pos, int64_t size)
902 if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
903 strlen(vs->current_segment_final_filename_fmt)) {
904 char * new_url = av_strdup(vs->current_segment_final_filename_fmt);
906 return AVERROR(ENOMEM);
908 ff_format_set_url(vs->avf, new_url);
909 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
910 char *filename = NULL;
911 if (replace_int_data_in_filename(&filename, vs->avf->url, 's', pos + size) < 1) {
912 av_log(hls, AV_LOG_ERROR,
913 "Invalid second level segment filename template '%s', "
914 "you can try to remove second_level_segment_size flag\n",
917 return AVERROR(EINVAL);
919 ff_format_set_url(vs->avf, filename);
921 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
922 char *filename = NULL;
923 if (replace_int_data_in_filename(&filename, vs->avf->url,
924 't', (int64_t)round(duration * HLS_MICROSECOND_UNIT)) < 1) {
925 av_log(hls, AV_LOG_ERROR,
926 "Invalid second level segment filename template '%s', "
927 "you can try to remove second_level_segment_time flag\n",
930 return AVERROR(EINVAL);
932 ff_format_set_url(vs->avf, filename);
938 static int sls_flag_check_duration_size_index(HLSContext *hls)
942 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
943 av_log(hls, AV_LOG_ERROR,
944 "second_level_segment_duration hls_flag requires strftime to be true\n");
945 ret = AVERROR(EINVAL);
947 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
948 av_log(hls, AV_LOG_ERROR,
949 "second_level_segment_size hls_flag requires strfime to be true\n");
950 ret = AVERROR(EINVAL);
952 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
953 av_log(hls, AV_LOG_ERROR,
954 "second_level_segment_index hls_flag requires strftime to be true\n");
955 ret = AVERROR(EINVAL);
961 static int sls_flag_check_duration_size(HLSContext *hls, VariantStream *vs)
963 const char *proto = avio_find_protocol_name(vs->basename);
964 int segment_renaming_ok = proto && !strcmp(proto, "file");
967 if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) {
968 av_log(hls, AV_LOG_ERROR,
969 "second_level_segment_duration hls_flag works only with file protocol segment names\n");
970 ret = AVERROR(EINVAL);
972 if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) {
973 av_log(hls, AV_LOG_ERROR,
974 "second_level_segment_size hls_flag works only with file protocol segment names\n");
975 ret = AVERROR(EINVAL);
981 static void sls_flag_file_rename(HLSContext *hls, VariantStream *vs, char *old_filename) {
982 if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
983 strlen(vs->current_segment_final_filename_fmt)) {
984 ff_rename(old_filename, vs->avf->url, hls);
988 static int sls_flag_use_localtime_filename(AVFormatContext *oc, HLSContext *c, VariantStream *vs)
990 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
991 char *filename = NULL;
992 if (replace_int_data_in_filename(&filename,
994 oc->url, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
996 oc->url, 'd', vs->sequence) < 1) {
998 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
999 "you can try to remove second_level_segment_index flag\n",
1001 av_freep(&filename);
1002 return AVERROR(EINVAL);
1004 ff_format_set_url(oc, filename);
1006 if (c->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) {
1007 av_strlcpy(vs->current_segment_final_filename_fmt, oc->url,
1008 sizeof(vs->current_segment_final_filename_fmt));
1009 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
1010 char *filename = NULL;
1011 if (replace_int_data_in_filename(&filename, oc->url, 's', 0) < 1) {
1012 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
1013 "you can try to remove second_level_segment_size flag\n",
1015 av_freep(&filename);
1016 return AVERROR(EINVAL);
1018 ff_format_set_url(oc, filename);
1020 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
1021 char *filename = NULL;
1022 if (replace_int_data_in_filename(&filename, oc->url, 't', 0) < 1) {
1023 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
1024 "you can try to remove second_level_segment_time flag\n",
1026 av_freep(&filename);
1027 return AVERROR(EINVAL);
1029 ff_format_set_url(oc, filename);
1035 /* Create a new segment and append it to the segment list */
1036 static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls,
1037 VariantStream *vs, double duration, int64_t pos,
1040 HLSSegment *en = av_malloc(sizeof(*en));
1041 const char *filename;
1042 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1046 return AVERROR(ENOMEM);
1048 en->var_stream_idx = vs->var_stream_idx;
1049 ret = sls_flags_filename_process(s, hls, vs, en, duration, pos, size);
1055 filename = av_basename(vs->avf->url);
1057 if (hls->use_localtime_mkdir) {
1058 filename = vs->avf->url;
1060 if ((find_segment_by_filename(vs->segments, filename) || find_segment_by_filename(vs->old_segments, filename))
1061 && !byterange_mode) {
1062 av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename);
1064 av_strlcpy(en->filename, filename, sizeof(en->filename));
1066 if (vs->has_subtitle)
1067 av_strlcpy(en->sub_filename, av_basename(vs->vtt_avf->url), sizeof(en->sub_filename));
1069 en->sub_filename[0] = '\0';
1071 en->duration = duration;
1074 en->keyframe_pos = vs->video_keyframe_pos;
1075 en->keyframe_size = vs->video_keyframe_size;
1079 if (vs->discontinuity) {
1081 vs->discontinuity = 0;
1084 if (hls->key_info_file || hls->encrypt) {
1085 av_strlcpy(en->key_uri, vs->key_uri, sizeof(en->key_uri));
1086 av_strlcpy(en->iv_string, vs->iv_string, sizeof(en->iv_string));
1092 vs->last_segment->next = en;
1094 vs->last_segment = en;
1096 // EVENT or VOD playlists imply sliding window cannot be used
1097 if (hls->pl_type != PLAYLIST_TYPE_NONE)
1098 hls->max_nb_segments = 0;
1100 if (hls->max_nb_segments && vs->nb_entries >= hls->max_nb_segments) {
1102 vs->initial_prog_date_time += en->duration;
1103 vs->segments = en->next;
1104 if (en && hls->flags & HLS_DELETE_SEGMENTS &&
1106 !(hls->flags & HLS_SINGLE_FILE || hls->wrap)) {
1108 !(hls->flags & HLS_SINGLE_FILE)) {
1110 en->next = vs->old_segments;
1111 vs->old_segments = en;
1112 if ((ret = hls_delete_old_segments(s, hls, vs)) < 0)
1119 if (hls->max_seg_size > 0) {
1127 static int parse_playlist(AVFormatContext *s, const char *url, VariantStream *vs)
1129 HLSContext *hls = s->priv_data;
1131 int ret = 0, is_segment = 0;
1132 int64_t new_start_pos;
1133 char line[MAX_URL_SIZE];
1137 if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ,
1138 &s->interrupt_callback, NULL,
1139 s->protocol_whitelist, s->protocol_blacklist)) < 0)
1142 ff_get_chomp_line(in, line, sizeof(line));
1143 if (strcmp(line, "#EXTM3U")) {
1144 ret = AVERROR_INVALIDDATA;
1148 vs->discontinuity = 0;
1149 while (!avio_feof(in)) {
1150 ff_get_chomp_line(in, line, sizeof(line));
1151 if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
1152 int64_t tmp_sequence = strtoll(ptr, NULL, 10);
1153 if (tmp_sequence < vs->sequence)
1154 av_log(hls, AV_LOG_VERBOSE,
1155 "Found playlist sequence number was smaller """
1156 "than specified start sequence number: %"PRId64" < %"PRId64", "
1157 "omitting\n", tmp_sequence, hls->start_sequence);
1159 av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence);
1160 vs->sequence = tmp_sequence;
1162 } else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) {
1164 vs->discontinuity = 1;
1165 } else if (av_strstart(line, "#EXTINF:", &ptr)) {
1167 vs->duration = atof(ptr);
1168 } else if (av_stristart(line, "#EXT-X-KEY:", &ptr)) {
1169 ptr = av_stristr(line, "URI=\"");
1171 ptr += strlen("URI=\"");
1172 end = av_stristr(ptr, ",");
1174 av_strlcpy(vs->key_uri, ptr, end - ptr);
1176 av_strlcpy(vs->key_uri, ptr, sizeof(vs->key_uri));
1180 ptr = av_stristr(line, "IV=0x");
1182 ptr += strlen("IV=0x");
1183 end = av_stristr(ptr, ",");
1185 av_strlcpy(vs->iv_string, ptr, end - ptr);
1187 av_strlcpy(vs->iv_string, ptr, sizeof(vs->iv_string));
1191 } else if (av_strstart(line, "#", NULL)) {
1193 } else if (line[0]) {
1195 char *new_file = av_strdup(line);
1197 ret = AVERROR(ENOMEM);
1200 ff_format_set_url(vs->avf, new_file);
1202 new_start_pos = avio_tell(vs->avf->pb);
1203 vs->size = new_start_pos - vs->start_pos;
1204 vs->initial_prog_date_time -= vs->duration; // this is a previously existing segment
1205 ret = hls_append_segment(s, hls, vs, vs->duration, vs->start_pos, vs->size);
1208 vs->start_pos = new_start_pos;
1218 static void hls_free_segments(HLSSegment *p)
1229 static int hls_rename_temp_file(AVFormatContext *s, AVFormatContext *oc)
1231 size_t len = strlen(oc->url);
1232 char *final_filename = av_strdup(oc->url);
1235 if (!final_filename)
1236 return AVERROR(ENOMEM);
1237 final_filename[len-4] = '\0';
1238 ret = ff_rename(oc->url, final_filename, s);
1239 oc->url[len-4] = '\0';
1240 av_freep(&final_filename);
1244 static const char* get_relative_url(const char *master_url, const char *media_url)
1246 const char *p = strrchr(master_url, '/');
1247 size_t base_len = 0;
1249 if (!p) p = strrchr(master_url, '\\');
1252 base_len = p - master_url;
1253 if (av_strncasecmp(master_url, media_url, base_len)) {
1254 av_log(NULL, AV_LOG_WARNING, "Unable to find relative url\n");
1261 return media_url + base_len + 1;
1264 static int64_t get_stream_bit_rate(AVStream *stream)
1266 AVCPBProperties *props = (AVCPBProperties*)av_stream_get_side_data(
1268 AV_PKT_DATA_CPB_PROPERTIES,
1272 if (stream->codecpar->bit_rate)
1273 return stream->codecpar->bit_rate;
1275 return props->max_bitrate;
1280 static int create_master_playlist(AVFormatContext *s,
1281 VariantStream * const input_vs)
1283 HLSContext *hls = s->priv_data;
1284 VariantStream *vs, *temp_vs;
1285 AVStream *vid_st, *aud_st;
1286 AVDictionary *options = NULL;
1289 const char *m3u8_rel_name = NULL;
1290 const char *vtt_m3u8_rel_name = NULL;
1291 const char *ccgroup;
1292 const char *sgroup = NULL;
1293 ClosedCaptionsStream *ccs;
1294 const char *proto = avio_find_protocol_name(hls->master_m3u8_url);
1295 int is_file_proto = proto && !strcmp(proto, "file");
1296 int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || hls->master_publish_rate);
1297 char temp_filename[MAX_URL_SIZE];
1299 input_vs->m3u8_created = 1;
1300 if (!hls->master_m3u8_created) {
1301 /* For the first time, wait until all the media playlists are created */
1302 for (i = 0; i < hls->nb_varstreams; i++)
1303 if (!hls->var_streams[i].m3u8_created)
1306 /* Keep publishing the master playlist at the configured rate */
1307 if (&hls->var_streams[0] != input_vs || !hls->master_publish_rate ||
1308 input_vs->number % hls->master_publish_rate)
1312 set_http_options(s, &options, hls);
1313 snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", hls->master_m3u8_url);
1314 ret = hlsenc_io_open(s, &hls->m3u8_out, temp_filename, &options);
1315 av_dict_free(&options);
1317 av_log(s, AV_LOG_ERROR, "Failed to open master play list file '%s'\n",
1322 ff_hls_write_playlist_version(hls->m3u8_out, hls->version);
1324 for (i = 0; i < hls->nb_ccstreams; i++) {
1325 ccs = &(hls->cc_streams[i]);
1326 avio_printf(hls->m3u8_out, "#EXT-X-MEDIA:TYPE=CLOSED-CAPTIONS");
1327 avio_printf(hls->m3u8_out, ",GROUP-ID=\"%s\"", ccs->ccgroup);
1328 avio_printf(hls->m3u8_out, ",NAME=\"%s\"", ccs->instreamid);
1330 avio_printf(hls->m3u8_out, ",LANGUAGE=\"%s\"", ccs->language);
1331 avio_printf(hls->m3u8_out, ",INSTREAM-ID=\"%s\"\n", ccs->instreamid);
1334 /* For audio only variant streams add #EXT-X-MEDIA tag with attributes*/
1335 for (i = 0; i < hls->nb_varstreams; i++) {
1336 vs = &(hls->var_streams[i]);
1338 if (vs->has_video || vs->has_subtitle || !vs->agroup)
1341 m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
1342 if (!m3u8_rel_name) {
1343 av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
1347 ff_hls_write_audio_rendition(hls->m3u8_out, vs->agroup, m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
1350 /* For variant streams with video add #EXT-X-STREAM-INF tag with attributes*/
1351 for (i = 0; i < hls->nb_varstreams; i++) {
1352 vs = &(hls->var_streams[i]);
1354 m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
1355 if (!m3u8_rel_name) {
1356 av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
1362 for (j = 0; j < vs->nb_streams; j++) {
1363 if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
1364 vid_st = vs->streams[j];
1365 else if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
1366 aud_st = vs->streams[j];
1369 if (!vid_st && !aud_st) {
1370 av_log(s, AV_LOG_WARNING, "Media stream not found\n");
1375 * Traverse through the list of audio only rendition streams and find
1376 * the rendition which has highest bitrate in the same audio group
1379 for (j = 0; j < hls->nb_varstreams; j++) {
1380 temp_vs = &(hls->var_streams[j]);
1381 if (!temp_vs->has_video && !temp_vs->has_subtitle &&
1383 !av_strcasecmp(temp_vs->agroup, vs->agroup)) {
1385 aud_st = temp_vs->streams[0];
1386 if (temp_vs->streams[0]->codecpar->bit_rate >
1387 aud_st->codecpar->bit_rate)
1388 aud_st = temp_vs->streams[0];
1395 bandwidth += get_stream_bit_rate(vid_st);
1397 bandwidth += get_stream_bit_rate(aud_st);
1398 bandwidth += bandwidth / 10;
1401 if (vid_st && vs->ccgroup) {
1402 /* check if this group name is available in the cc map string */
1403 for (j = 0; j < hls->nb_ccstreams; j++) {
1404 ccs = &(hls->cc_streams[j]);
1405 if (!av_strcasecmp(ccs->ccgroup, vs->ccgroup)) {
1406 ccgroup = vs->ccgroup;
1410 if (j == hls->nb_ccstreams)
1411 av_log(s, AV_LOG_WARNING, "mapping ccgroup %s not found\n",
1415 if (vid_st && vs->sgroup) {
1416 sgroup = vs->sgroup;
1417 vtt_m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->vtt_m3u8_name);
1418 if (!vtt_m3u8_rel_name) {
1419 av_log(s, AV_LOG_WARNING, "Unable to find relative subtitle URL\n");
1423 ff_hls_write_subtitle_rendition(hls->m3u8_out, sgroup, vtt_m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
1426 if (!hls->has_default_key || !hls->has_video_m3u8) {
1427 ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
1428 aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup);
1431 ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
1432 aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup);
1438 hls->master_m3u8_created = 1;
1439 hlsenc_io_close(s, &hls->m3u8_out, temp_filename);
1441 ff_rename(temp_filename, hls->master_m3u8_url, s);
1446 static int hls_window(AVFormatContext *s, int last, VariantStream *vs)
1448 HLSContext *hls = s->priv_data;
1450 int target_duration = 0;
1452 char temp_filename[MAX_URL_SIZE];
1453 char temp_vtt_filename[MAX_URL_SIZE];
1454 int64_t sequence = FFMAX(hls->start_sequence, vs->sequence - vs->nb_entries);
1455 const char *proto = avio_find_protocol_name(vs->m3u8_name);
1456 int is_file_proto = proto && !strcmp(proto, "file");
1457 int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || !(hls->pl_type == PLAYLIST_TYPE_VOD));
1458 static unsigned warned_non_file;
1459 char *key_uri = NULL;
1460 char *iv_string = NULL;
1461 AVDictionary *options = NULL;
1462 double prog_date_time = vs->initial_prog_date_time;
1463 double *prog_date_time_p = (hls->flags & HLS_PROGRAM_DATE_TIME) ? &prog_date_time : NULL;
1464 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1467 if (byterange_mode) {
1472 if (hls->flags & HLS_INDEPENDENT_SEGMENTS) {
1476 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1480 if (!is_file_proto && (hls->flags & HLS_TEMP_FILE) && !warned_non_file++)
1481 av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
1483 set_http_options(s, &options, hls);
1484 snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", vs->m3u8_name);
1485 if ((ret = hlsenc_io_open(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename, &options)) < 0) {
1486 if (hls->ignore_io_errors)
1491 for (en = vs->segments; en; en = en->next) {
1492 if (target_duration <= en->duration)
1493 target_duration = lrint(en->duration);
1496 vs->discontinuity_set = 0;
1497 ff_hls_write_playlist_header(byterange_mode ? hls->m3u8_out : vs->out, hls->version, hls->allowcache,
1498 target_duration, sequence, hls->pl_type, hls->flags & HLS_I_FRAMES_ONLY);
1500 if ((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && vs->discontinuity_set==0) {
1501 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-DISCONTINUITY\n");
1502 vs->discontinuity_set = 1;
1504 if (vs->has_video && (hls->flags & HLS_INDEPENDENT_SEGMENTS)) {
1505 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-INDEPENDENT-SEGMENTS\n");
1507 for (en = vs->segments; en; en = en->next) {
1508 if ((hls->encrypt || hls->key_info_file) && (!key_uri || strcmp(en->key_uri, key_uri) ||
1509 av_strcasecmp(en->iv_string, iv_string))) {
1510 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri);
1512 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, ",IV=0x%s", en->iv_string);
1513 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "\n");
1514 key_uri = en->key_uri;
1515 iv_string = en->iv_string;
1518 if ((hls->segment_type == SEGMENT_TYPE_FMP4) && (en == vs->segments)) {
1519 ff_hls_write_init_file(byterange_mode ? hls->m3u8_out : vs->out, (hls->flags & HLS_SINGLE_FILE) ? en->filename : vs->fmp4_init_filename,
1520 hls->flags & HLS_SINGLE_FILE, vs->init_range_length, 0);
1523 ret = ff_hls_write_file_entry(byterange_mode ? hls->m3u8_out : vs->out, en->discont, byterange_mode,
1524 en->duration, hls->flags & HLS_ROUND_DURATIONS,
1525 en->size, en->pos, hls->baseurl,
1526 en->filename, prog_date_time_p, en->keyframe_size, en->keyframe_pos, hls->flags & HLS_I_FRAMES_ONLY);
1528 av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
1532 if (last && (hls->flags & HLS_OMIT_ENDLIST)==0)
1533 ff_hls_write_end_list(byterange_mode ? hls->m3u8_out : vs->out);
1535 if (vs->vtt_m3u8_name) {
1536 snprintf(temp_vtt_filename, sizeof(temp_vtt_filename), use_temp_file ? "%s.tmp" : "%s", vs->vtt_m3u8_name);
1537 if ((ret = hlsenc_io_open(s, &hls->sub_m3u8_out, temp_vtt_filename, &options)) < 0) {
1538 if (hls->ignore_io_errors)
1542 ff_hls_write_playlist_header(hls->sub_m3u8_out, hls->version, hls->allowcache,
1543 target_duration, sequence, PLAYLIST_TYPE_NONE, 0);
1544 for (en = vs->segments; en; en = en->next) {
1545 ret = ff_hls_write_file_entry(hls->sub_m3u8_out, 0, byterange_mode,
1546 en->duration, 0, en->size, en->pos,
1547 hls->baseurl, en->sub_filename, NULL, 0, 0, 0);
1549 av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
1554 ff_hls_write_end_list(hls->sub_m3u8_out);
1559 av_dict_free(&options);
1560 ret = hlsenc_io_close(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename);
1564 hlsenc_io_close(s, &hls->sub_m3u8_out, vs->vtt_m3u8_name);
1565 if (use_temp_file) {
1566 ff_rename(temp_filename, vs->m3u8_name, s);
1567 if (vs->vtt_m3u8_name)
1568 ff_rename(temp_vtt_filename, vs->vtt_m3u8_name, s);
1570 if (ret >= 0 && hls->master_pl_name)
1571 if (create_master_playlist(s, vs) < 0)
1572 av_log(s, AV_LOG_WARNING, "Master playlist creation failed\n");
1577 static int hls_start(AVFormatContext *s, VariantStream *vs)
1579 HLSContext *c = s->priv_data;
1580 AVFormatContext *oc = vs->avf;
1581 AVFormatContext *vtt_oc = vs->vtt_avf;
1582 AVDictionary *options = NULL;
1583 const char *proto = NULL;
1584 int use_temp_file = 0;
1585 char iv_string[KEYSIZE*2 + 1];
1588 if (c->flags & HLS_SINGLE_FILE) {
1589 char *new_name = av_strdup(vs->basename);
1591 return AVERROR(ENOMEM);
1592 ff_format_set_url(oc, new_name);
1593 if (vs->vtt_basename) {
1594 new_name = av_strdup(vs->vtt_basename);
1596 return AVERROR(ENOMEM);
1597 ff_format_set_url(vtt_oc, new_name);
1599 } else if (c->max_seg_size > 0) {
1600 char *filename = NULL;
1601 if (replace_int_data_in_filename(&filename,
1603 vs->basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1605 vs->basename, 'd', vs->sequence) < 1) {
1607 av_freep(&filename);
1608 av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -strftime 1 with it\n", vs->basename);
1609 return AVERROR(EINVAL);
1611 ff_format_set_url(oc, filename);
1613 if (c->use_localtime) {
1615 struct tm *tm, tmpbuf;
1616 int bufsize = strlen(vs->basename) + MAX_URL_SIZE;
1617 char *buf = av_mallocz(bufsize);
1619 return AVERROR(ENOMEM);
1621 tm = localtime_r(&now0, &tmpbuf);
1622 ff_format_set_url(oc, buf);
1623 if (!strftime(oc->url, bufsize, vs->basename, tm)) {
1624 av_log(oc, AV_LOG_ERROR, "Could not get segment filename with strftime\n");
1625 return AVERROR(EINVAL);
1628 err = sls_flag_use_localtime_filename(oc, c, vs);
1630 return AVERROR(ENOMEM);
1633 if (c->use_localtime_mkdir) {
1635 char *fn_copy = av_strdup(oc->url);
1637 return AVERROR(ENOMEM);
1638 dir = av_dirname(fn_copy);
1639 if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
1640 av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir);
1642 return AVERROR(errno);
1647 char *filename = NULL;
1648 if (replace_int_data_in_filename(&filename,
1650 vs->basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1652 vs->basename, 'd', vs->sequence) < 1) {
1654 av_freep(&filename);
1655 av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -strftime 1 with it\n", vs->basename);
1656 return AVERROR(EINVAL);
1658 ff_format_set_url(oc, filename);
1660 if (vs->vtt_basename) {
1661 char *filename = NULL;
1662 if (replace_int_data_in_filename(&filename,
1664 vs->vtt_basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1666 vs->vtt_basename, 'd', vs->sequence) < 1) {
1668 av_freep(&filename);
1669 av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", vs->vtt_basename);
1670 return AVERROR(EINVAL);
1672 ff_format_set_url(vtt_oc, filename);
1676 proto = avio_find_protocol_name(oc->url);
1677 use_temp_file = proto && !strcmp(proto, "file") && (c->flags & HLS_TEMP_FILE);
1679 if (use_temp_file) {
1680 char *new_name = av_asprintf("%s.tmp", oc->url);
1682 return AVERROR(ENOMEM);
1683 ff_format_set_url(oc, new_name);
1686 if (c->key_info_file || c->encrypt) {
1687 if (c->segment_type == SEGMENT_TYPE_FMP4) {
1688 av_log(s, AV_LOG_ERROR, "Encrypted fmp4 not yet supported\n");
1689 return AVERROR_PATCHWELCOME;
1692 if (c->key_info_file && c->encrypt) {
1693 av_log(s, AV_LOG_WARNING, "Cannot use both -hls_key_info_file and -hls_enc,"
1694 " ignoring -hls_enc\n");
1697 if (!vs->encrypt_started || (c->flags & HLS_PERIODIC_REKEY)) {
1698 if (c->key_info_file) {
1699 if ((err = hls_encryption_start(s, vs)) < 0)
1702 if (!c->encrypt_started) {
1703 if ((err = do_encrypt(s, vs)) < 0)
1705 c->encrypt_started = 1;
1707 av_strlcpy(vs->key_uri, c->key_uri, sizeof(vs->key_uri));
1708 av_strlcpy(vs->key_string, c->key_string, sizeof(vs->key_string));
1709 av_strlcpy(vs->iv_string, c->iv_string, sizeof(vs->iv_string));
1711 vs->encrypt_started = 1;
1713 err = av_strlcpy(iv_string, vs->iv_string, sizeof(iv_string));
1715 snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, vs->sequence);
1716 memset(vs->iv_string, 0, sizeof(vs->iv_string));
1717 memcpy(vs->iv_string, iv_string, sizeof(iv_string));
1720 if (c->segment_type != SEGMENT_TYPE_FMP4) {
1721 if (oc->oformat->priv_class && oc->priv_data) {
1722 av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
1724 if (c->flags & HLS_SINGLE_FILE) {
1725 set_http_options(s, &options, c);
1726 if ((err = hlsenc_io_open(s, &vs->out, oc->url, &options)) < 0) {
1727 if (c->ignore_io_errors)
1733 if (vs->vtt_basename) {
1734 set_http_options(s, &options, c);
1735 if ((err = hlsenc_io_open(s, &vtt_oc->pb, vtt_oc->url, &options)) < 0) {
1736 if (c->ignore_io_errors)
1741 av_dict_free(&options);
1743 if (vs->vtt_basename) {
1744 err = avformat_write_header(vtt_oc,NULL);
1751 av_dict_free(&options);
1756 static const char * get_default_pattern_localtime_fmt(AVFormatContext *s)
1759 time_t t = time(NULL);
1760 struct tm *p, tmbuf;
1761 HLSContext *hls = s->priv_data;
1763 p = localtime_r(&t, &tmbuf);
1764 // no %s support when strftime returned error or left format string unchanged
1765 // also no %s support on MSVC, which invokes the invalid parameter handler on unsupported format strings, instead of returning an error
1766 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1767 return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.m4s" : "-%s.m4s";
1769 return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts";
1772 static int append_postfix(char *name, int name_buf_len, int i)
1775 char extension[10] = {'\0'};
1777 p = strrchr(name, '.');
1779 av_strlcpy(extension, p, sizeof(extension));
1783 snprintf(name + strlen(name), name_buf_len - strlen(name), POSTFIX_PATTERN, i);
1785 if (strlen(extension))
1786 av_strlcat(name, extension, name_buf_len);
1791 static int validate_name(int nb_vs, const char *fn)
1793 const char *filename, *subdir_name;
1794 char *fn_dup = NULL;
1798 return AVERROR(EINVAL);
1800 fn_dup = av_strdup(fn);
1802 return AVERROR(ENOMEM);
1803 filename = av_basename(fn);
1804 subdir_name = av_dirname(fn_dup);
1806 if (nb_vs > 1 && !av_stristr(filename, "%v") && !av_stristr(subdir_name, "%v")) {
1807 av_log(NULL, AV_LOG_ERROR, "More than 1 variant streams are present, %%v is expected "
1808 "either in the filename or in the sub-directory name of file %s\n", fn);
1809 ret = AVERROR(EINVAL);
1813 if (av_stristr(filename, "%v") && av_stristr(subdir_name, "%v")) {
1814 av_log(NULL, AV_LOG_ERROR, "%%v is expected either in the filename or "
1815 "in the sub-directory name of file %s, but only in one of them\n", fn);
1816 ret = AVERROR(EINVAL);
1825 static int format_name(const char *buf, char **s, int index, const char *varname)
1827 const char *proto, *dir;
1828 char *orig_buf_dup = NULL, *mod_buf_dup = NULL;
1831 orig_buf_dup = av_strdup(buf);
1833 return AVERROR(ENOMEM);
1835 if (!av_stristr(buf, "%v")) {
1841 if (replace_int_data_in_filename(s, orig_buf_dup, 'v', index) < 1) {
1842 ret = AVERROR(EINVAL);
1846 if (replace_str_data_in_filename(s, orig_buf_dup, 'v', varname) < 1) {
1847 ret = AVERROR(EINVAL);
1852 proto = avio_find_protocol_name(orig_buf_dup);
1853 dir = av_dirname(orig_buf_dup);
1855 /* if %v is present in the file's directory, create sub-directory */
1856 if (av_stristr(dir, "%v") && proto && !strcmp(proto, "file")) {
1857 mod_buf_dup = av_strdup(*s);
1858 dir = av_dirname(mod_buf_dup);
1859 if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
1860 ret = AVERROR(errno);
1866 av_freep(&orig_buf_dup);
1867 av_freep(&mod_buf_dup);
1871 static int get_nth_codec_stream_index(AVFormatContext *s,
1872 enum AVMediaType codec_type,
1875 unsigned int stream_index, cnt;
1876 if (stream_id < 0 || stream_id > s->nb_streams - 1)
1879 for (stream_index = 0; stream_index < s->nb_streams; stream_index++) {
1880 if (s->streams[stream_index]->codecpar->codec_type != codec_type)
1882 if (cnt == stream_id)
1883 return stream_index;
1889 static int parse_variant_stream_mapstring(AVFormatContext *s)
1891 HLSContext *hls = s->priv_data;
1893 int stream_index, i, j;
1894 enum AVMediaType codec_type;
1895 int nb_varstreams = 0, nb_streams;
1896 char *p, *q, *saveptr1, *saveptr2, *varstr, *keyval;
1900 * Expected format for var_stream_map string is as below:
1902 * "a:0,agroup:a0,default:1,language:ENG a:1,agroup:a1,default:0 v:0,agroup:a0 v:1,agroup:a1"
1903 * This string specifies how to group the audio, video and subtitle streams
1904 * into different variant streams. The variant stream groups are separated
1907 * a:, v:, s: are keys to specify audio, video and subtitle streams
1908 * respectively. Allowed values are 0 to 9 digits (limited just based on
1911 * agroup: is key to specify audio group. A string can be given as value.
1912 * sgroup: is key to specify subtitle group. A string can be given as value.
1914 p = av_strdup(hls->var_stream_map);
1916 return AVERROR(ENOMEM);
1919 while (av_strtok(q, " \t", &saveptr1)) {
1925 hls->var_streams = av_mallocz(sizeof(*hls->var_streams) * nb_varstreams);
1926 if (!hls->var_streams)
1927 return AVERROR(ENOMEM);
1928 hls->nb_varstreams = nb_varstreams;
1930 p = hls->var_stream_map;
1932 while (varstr = av_strtok(p, " \t", &saveptr1)) {
1935 if (nb_varstreams < hls->nb_varstreams) {
1936 vs = &(hls->var_streams[nb_varstreams]);
1937 vs->var_stream_idx = nb_varstreams;
1941 return AVERROR(EINVAL);
1945 if (!av_strncasecmp(q, "a:", 2) || !av_strncasecmp(q, "v:", 2) ||
1946 !av_strncasecmp(q, "s:", 2))
1953 vs->streams = av_mallocz(sizeof(AVStream *) * vs->nb_streams);
1955 return AVERROR(ENOMEM);
1958 while (keyval = av_strtok(varstr, ",", &saveptr2)) {
1962 if (av_strstart(keyval, "language:", &val)) {
1965 } else if (av_strstart(keyval, "default:", &val)) {
1966 vs->is_default = (!av_strncasecmp(val, "YES", strlen("YES")) ||
1967 (!av_strncasecmp(val, "1", strlen("1"))));
1968 hls->has_default_key = 1;
1970 } else if (av_strstart(keyval, "name:", &val)) {
1973 } else if (av_strstart(keyval, "agroup:", &val)) {
1976 } else if (av_strstart(keyval, "sgroup:", &val)) {
1979 } else if (av_strstart(keyval, "ccgroup:", &val)) {
1982 } else if (av_strstart(keyval, "v:", &val)) {
1983 codec_type = AVMEDIA_TYPE_VIDEO;
1984 hls->has_video_m3u8 = 1;
1985 } else if (av_strstart(keyval, "a:", &val)) {
1986 codec_type = AVMEDIA_TYPE_AUDIO;
1987 } else if (av_strstart(keyval, "s:", &val)) {
1988 codec_type = AVMEDIA_TYPE_SUBTITLE;
1990 av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
1991 return AVERROR(EINVAL);
1994 num = strtoll(val, &end, 10);
1995 if (!av_isdigit(*val) || *end != '\0') {
1996 av_log(s, AV_LOG_ERROR, "Invalid stream number: '%s'\n", val);
1997 return AVERROR(EINVAL);
1999 stream_index = get_nth_codec_stream_index(s, codec_type, num);
2001 if (stream_index >= 0 && nb_streams < vs->nb_streams) {
2002 for (i = 0; nb_streams > 0 && i < nb_streams; i++) {
2003 if (vs->streams[i] == s->streams[stream_index]) {
2004 av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once inside "
2005 "variant definition #%d\n", nb_varstreams - 1);
2006 return AVERROR(EINVAL);
2009 for (j = 0; nb_varstreams > 1 && j < nb_varstreams - 1; j++) {
2010 for (i = 0; i < hls->var_streams[j].nb_streams; i++) {
2011 if (hls->var_streams[j].streams[i] == s->streams[stream_index]) {
2012 av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once "
2013 "in two different variant definitions #%d and #%d\n",
2014 j, nb_varstreams - 1);
2015 return AVERROR(EINVAL);
2019 vs->streams[nb_streams++] = s->streams[stream_index];
2021 av_log(s, AV_LOG_ERROR, "Unable to map stream at %s\n", keyval);
2022 return AVERROR(EINVAL);
2026 av_log(s, AV_LOG_DEBUG, "Number of variant streams %d\n",
2027 hls->nb_varstreams);
2032 static int parse_cc_stream_mapstring(AVFormatContext *s)
2034 HLSContext *hls = s->priv_data;
2035 int nb_ccstreams = 0;
2036 char *p, *q, *ccstr, *keyval;
2037 char *saveptr1 = NULL, *saveptr2 = NULL;
2039 ClosedCaptionsStream *ccs;
2041 p = av_strdup(hls->cc_stream_map);
2043 return AVERROR(ENOMEM);
2046 while (av_strtok(q, " \t", &saveptr1)) {
2052 hls->cc_streams = av_mallocz(sizeof(*hls->cc_streams) * nb_ccstreams);
2053 if (!hls->cc_streams)
2054 return AVERROR(ENOMEM);
2055 hls->nb_ccstreams = nb_ccstreams;
2057 p = hls->cc_stream_map;
2059 while (ccstr = av_strtok(p, " \t", &saveptr1)) {
2062 if (nb_ccstreams < hls->nb_ccstreams)
2063 ccs = &(hls->cc_streams[nb_ccstreams++]);
2065 return AVERROR(EINVAL);
2067 while (keyval = av_strtok(ccstr, ",", &saveptr2)) {
2070 if (av_strstart(keyval, "ccgroup:", &val)) {
2072 } else if (av_strstart(keyval, "instreamid:", &val)) {
2073 ccs->instreamid = val;
2074 } else if (av_strstart(keyval, "language:", &val)) {
2075 ccs->language = val;
2077 av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
2078 return AVERROR(EINVAL);
2082 if (!ccs->ccgroup || !ccs->instreamid) {
2083 av_log(s, AV_LOG_ERROR, "Insufficient parameters in cc stream map string\n");
2084 return AVERROR(EINVAL);
2087 if (av_strstart(ccs->instreamid, "CC", &val)) {
2088 if (atoi(val) < 1 || atoi(val) > 4) {
2089 av_log(s, AV_LOG_ERROR, "Invalid instream ID CC index %d in %s, range 1-4\n",
2090 atoi(val), ccs->instreamid);
2091 return AVERROR(EINVAL);
2093 } else if (av_strstart(ccs->instreamid, "SERVICE", &val)) {
2094 if (atoi(val) < 1 || atoi(val) > 63) {
2095 av_log(s, AV_LOG_ERROR, "Invalid instream ID SERVICE index %d in %s, range 1-63 \n",
2096 atoi(val), ccs->instreamid);
2097 return AVERROR(EINVAL);
2100 av_log(s, AV_LOG_ERROR, "Invalid instream ID %s, supported are CCn or SERVICEn\n",
2102 return AVERROR(EINVAL);
2109 static int update_variant_stream_info(AVFormatContext *s)
2111 HLSContext *hls = s->priv_data;
2115 if (hls->cc_stream_map) {
2116 ret = parse_cc_stream_mapstring(s);
2121 if (hls->var_stream_map) {
2122 return parse_variant_stream_mapstring(s);
2124 //By default, a single variant stream with all the codec streams is created
2125 hls->var_streams = av_mallocz(sizeof(*hls->var_streams));
2126 if (!hls->var_streams)
2127 return AVERROR(ENOMEM);
2128 hls->nb_varstreams = 1;
2130 hls->var_streams[0].var_stream_idx = 0;
2131 hls->var_streams[0].nb_streams = s->nb_streams;
2132 hls->var_streams[0].streams = av_mallocz(sizeof(AVStream *) *
2133 hls->var_streams[0].nb_streams);
2134 if (!hls->var_streams[0].streams)
2135 return AVERROR(ENOMEM);
2137 //by default, the first available ccgroup is mapped to the variant stream
2138 if (hls->nb_ccstreams)
2139 hls->var_streams[0].ccgroup = hls->cc_streams[0].ccgroup;
2141 for (i = 0; i < s->nb_streams; i++)
2142 hls->var_streams[0].streams[i] = s->streams[i];
2147 static int update_master_pl_info(AVFormatContext *s)
2149 HLSContext *hls = s->priv_data;
2151 char *fn1= NULL, *fn2 = NULL;
2154 fn1 = av_strdup(s->url);
2156 return AVERROR(ENOMEM);
2157 dir = av_dirname(fn1);
2160 * if output file's directory has %v, variants are created in sub-directories
2161 * then master is created at the sub-directories level
2163 if (dir && av_stristr(av_basename(dir), "%v")) {
2164 fn2 = av_strdup(dir);
2166 ret = AVERROR(ENOMEM);
2169 dir = av_dirname(fn2);
2172 if (dir && strcmp(dir, "."))
2173 hls->master_m3u8_url = av_append_path_component(dir, hls->master_pl_name);
2175 hls->master_m3u8_url = av_strdup(hls->master_pl_name);
2177 if (!hls->master_m3u8_url) {
2178 ret = AVERROR(ENOMEM);
2189 static int hls_write_header(AVFormatContext *s)
2191 HLSContext *hls = s->priv_data;
2193 VariantStream *vs = NULL;
2195 for (i = 0; i < hls->nb_varstreams; i++) {
2196 vs = &hls->var_streams[i];
2198 ret = avformat_write_header(vs->avf, NULL);
2201 //av_assert0(s->nb_streams == hls->avf->nb_streams);
2202 for (j = 0; j < vs->nb_streams; j++) {
2204 AVStream *outer_st = vs->streams[j];
2206 if (hls->max_seg_size > 0) {
2207 if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
2208 (outer_st->codecpar->bit_rate > hls->max_seg_size)) {
2209 av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, "
2210 "(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.",
2211 outer_st->codecpar->bit_rate, hls->max_seg_size);
2215 if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
2216 inner_st = vs->avf->streams[j];
2217 else if (vs->vtt_avf)
2218 inner_st = vs->vtt_avf->streams[0];
2220 /* We have a subtitle stream, when the user does not want one */
2224 avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
2225 write_codec_attr(outer_st, vs);
2228 /* Update the Codec Attr string for the mapped audio groups */
2229 if (vs->has_video && vs->agroup) {
2230 for (j = 0; j < hls->nb_varstreams; j++) {
2231 VariantStream *vs_agroup = &(hls->var_streams[j]);
2232 if (!vs_agroup->has_video && !vs_agroup->has_subtitle &&
2233 vs_agroup->agroup &&
2234 !av_strcasecmp(vs_agroup->agroup, vs->agroup)) {
2235 write_codec_attr(vs_agroup->streams[0], vs);
2244 static int hls_init_file_resend(AVFormatContext *s, VariantStream *vs)
2246 HLSContext *hls = s->priv_data;
2247 AVDictionary *options = NULL;
2250 set_http_options(s, &options, hls);
2251 ret = hlsenc_io_open(s, &vs->out, vs->base_output_dirname, &options);
2252 av_dict_free(&options);
2255 avio_write(vs->out, vs->init_buffer, vs->init_range_length);
2256 hlsenc_io_close(s, &vs->out, hls->fmp4_init_filename);
2261 static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
2263 HLSContext *hls = s->priv_data;
2264 AVFormatContext *oc = NULL;
2265 AVStream *st = s->streams[pkt->stream_index];
2266 int64_t end_pts = 0;
2268 int ret = 0, can_split = 1, i, j;
2269 int stream_index = 0;
2270 int range_length = 0;
2271 const char *proto = NULL;
2272 int use_temp_file = 0;
2273 VariantStream *vs = NULL;
2274 char *old_filename = NULL;
2276 for (i = 0; i < hls->nb_varstreams; i++) {
2277 vs = &hls->var_streams[i];
2278 for (j = 0; j < vs->nb_streams; j++) {
2279 if (vs->streams[j] == st) {
2280 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2296 av_log(s, AV_LOG_ERROR, "Unable to find mapping variant stream\n");
2297 return AVERROR(ENOMEM);
2300 end_pts = hls->recording_time * vs->number;
2302 if (vs->sequence - vs->nb_entries > hls->start_sequence && hls->init_time > 0) {
2303 /* reset end_pts, hls->recording_time at end of the init hls list */
2304 int64_t init_list_dur = hls->init_time * vs->nb_entries * AV_TIME_BASE;
2305 int64_t after_init_list_dur = (vs->sequence - hls->start_sequence - vs->nb_entries) * (hls->time * AV_TIME_BASE);
2306 hls->recording_time = hls->time * AV_TIME_BASE;
2307 end_pts = init_list_dur + after_init_list_dur ;
2310 if (vs->start_pts == AV_NOPTS_VALUE) {
2311 vs->start_pts = pkt->pts;
2312 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
2313 vs->start_pts_from_audio = 1;
2315 if (vs->start_pts_from_audio && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && vs->start_pts > pkt->pts) {
2316 vs->start_pts = pkt->pts;
2317 vs->start_pts_from_audio = 0;
2320 if (vs->has_video) {
2321 can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
2322 ((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME));
2323 is_ref_pkt = (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->stream_index == vs->reference_stream_index);
2325 if (pkt->pts == AV_NOPTS_VALUE)
2326 is_ref_pkt = can_split = 0;
2329 if (vs->end_pts == AV_NOPTS_VALUE)
2330 vs->end_pts = pkt->pts;
2331 if (vs->new_start) {
2333 vs->duration = (double)(pkt->pts - vs->end_pts)
2334 * st->time_base.num / st->time_base.den;
2335 vs->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den;
2337 if (pkt->duration) {
2338 vs->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den;
2340 av_log(s, AV_LOG_WARNING, "pkt->duration = 0, maybe the hls segment duration will not precise\n");
2341 vs->duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den;
2347 if (vs->packets_written && can_split && av_compare_ts(pkt->pts - vs->start_pts, st->time_base,
2348 end_pts, AV_TIME_BASE_Q) >= 0) {
2349 int64_t new_start_pos;
2350 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
2352 av_write_frame(oc, NULL); /* Flush any buffered data */
2353 new_start_pos = avio_tell(oc->pb);
2354 vs->size = new_start_pos - vs->start_pos;
2356 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2357 if (!vs->init_range_length) {
2358 range_length = avio_close_dyn_buf(oc->pb, &vs->init_buffer);
2359 if (range_length <= 0)
2360 return AVERROR(EINVAL);
2361 avio_write(vs->out, vs->init_buffer, range_length);
2362 if (!hls->resend_init_file)
2363 av_freep(&vs->init_buffer);
2364 vs->init_range_length = range_length;
2365 avio_open_dyn_buf(&oc->pb);
2366 vs->packets_written = 0;
2367 vs->start_pos = range_length;
2368 if (!byterange_mode) {
2369 hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
2373 if (!byterange_mode) {
2375 hlsenc_io_close(s, &vs->vtt_avf->pb, vs->vtt_avf->url);
2379 if (hls->flags & HLS_SINGLE_FILE) {
2380 ret = flush_dynbuf(vs, &range_length);
2381 av_freep(&vs->temp_buffer);
2385 vs->size = range_length;
2388 proto = avio_find_protocol_name(oc->url);
2389 use_temp_file = proto && !strcmp(proto, "file")
2390 && (hls->flags & HLS_TEMP_FILE);
2393 if ((hls->max_seg_size > 0 && (vs->size + vs->start_pos >= hls->max_seg_size)) || !byterange_mode) {
2394 AVDictionary *options = NULL;
2395 char *filename = NULL;
2396 if (hls->key_info_file || hls->encrypt) {
2397 av_dict_set(&options, "encryption_key", vs->key_string, 0);
2398 av_dict_set(&options, "encryption_iv", vs->iv_string, 0);
2399 filename = av_asprintf("crypto:%s", oc->url);
2401 filename = av_asprintf("%s", oc->url);
2404 av_dict_free(&options);
2405 return AVERROR(ENOMEM);
2408 // look to rename the asset name
2410 av_dict_set(&options, "mpegts_flags", "resend_headers", 0);
2412 set_http_options(s, &options, hls);
2414 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2416 av_log(s, hls->ignore_io_errors ? AV_LOG_WARNING : AV_LOG_ERROR,
2417 "Failed to open file '%s'\n", filename);
2418 av_freep(&filename);
2419 av_dict_free(&options);
2420 return hls->ignore_io_errors ? 0 : ret;
2422 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2423 write_styp(vs->out);
2425 ret = flush_dynbuf(vs, &range_length);
2427 av_freep(&filename);
2428 av_dict_free(&options);
2431 ret = hlsenc_io_close(s, &vs->out, filename);
2433 av_log(s, AV_LOG_WARNING, "upload segment failed,"
2434 " will retry with a new http session.\n");
2435 ff_format_io_close(s, &vs->out);
2436 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2437 reflush_dynbuf(vs, &range_length);
2438 ret = hlsenc_io_close(s, &vs->out, filename);
2440 av_dict_free(&options);
2441 av_freep(&vs->temp_buffer);
2442 av_freep(&filename);
2446 hls_rename_temp_file(s, oc);
2449 old_filename = av_strdup(oc->url);
2450 if (!old_filename) {
2451 return AVERROR(ENOMEM);
2454 if (vs->start_pos || hls->segment_type != SEGMENT_TYPE_FMP4) {
2455 double cur_duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den;
2456 ret = hls_append_segment(s, hls, vs, cur_duration, vs->start_pos, vs->size);
2457 vs->end_pts = pkt->pts;
2460 av_freep(&old_filename);
2465 // if we're building a VOD playlist, skip writing the manifest multiple times, and just wait until the end
2466 if (hls->pl_type != PLAYLIST_TYPE_VOD) {
2467 if ((ret = hls_window(s, 0, vs)) < 0) {
2468 av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
2469 ff_format_io_close(s, &vs->out);
2470 if ((ret = hls_window(s, 0, vs)) < 0) {
2471 av_freep(&old_filename);
2477 if (hls->resend_init_file && hls->segment_type == SEGMENT_TYPE_FMP4) {
2478 ret = hls_init_file_resend(s, vs);
2480 av_freep(&old_filename);
2485 if (hls->flags & HLS_SINGLE_FILE) {
2486 vs->start_pos += vs->size;
2487 } else if (hls->max_seg_size > 0) {
2488 if (vs->size + vs->start_pos >= hls->max_seg_size) {
2490 sls_flag_file_rename(hls, vs, old_filename);
2491 ret = hls_start(s, vs);
2493 /* When split segment by byte, the duration is short than hls_time,
2494 * so it is not enough one segment duration as hls_time, */
2496 vs->start_pos = new_start_pos;
2499 vs->start_pos = new_start_pos;
2500 sls_flag_file_rename(hls, vs, old_filename);
2501 ret = hls_start(s, vs);
2504 av_freep(&old_filename);
2512 vs->packets_written++;
2514 ret = ff_write_chained(oc, stream_index, pkt, s, 0);
2515 vs->video_keyframe_size += pkt->size;
2516 if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->flags & AV_PKT_FLAG_KEY)) {
2517 vs->video_keyframe_size = avio_tell(oc->pb);
2519 vs->video_keyframe_pos = avio_tell(vs->out);
2521 if (hls->ignore_io_errors)
2528 static void hls_deinit(AVFormatContext *s)
2530 HLSContext *hls = s->priv_data;
2532 VariantStream *vs = NULL;
2534 for (i = 0; i < hls->nb_varstreams; i++) {
2535 vs = &hls->var_streams[i];
2537 av_freep(&vs->basename);
2538 av_freep(&vs->base_output_dirname);
2539 av_freep(&vs->fmp4_init_filename);
2540 av_freep(&vs->vtt_basename);
2541 av_freep(&vs->vtt_m3u8_name);
2543 avformat_free_context(vs->vtt_avf);
2544 avformat_free_context(vs->avf);
2545 if (hls->resend_init_file)
2546 av_freep(&vs->init_buffer);
2547 hls_free_segments(vs->segments);
2548 hls_free_segments(vs->old_segments);
2549 av_freep(&vs->m3u8_name);
2550 av_freep(&vs->streams);
2553 ff_format_io_close(s, &hls->m3u8_out);
2554 ff_format_io_close(s, &hls->sub_m3u8_out);
2555 av_freep(&hls->key_basename);
2556 av_freep(&hls->var_streams);
2557 av_freep(&hls->cc_streams);
2558 av_freep(&hls->master_m3u8_url);
2561 static int hls_write_trailer(struct AVFormatContext *s)
2563 HLSContext *hls = s->priv_data;
2564 AVFormatContext *oc = NULL;
2565 AVFormatContext *vtt_oc = NULL;
2566 char *old_filename = NULL;
2567 const char *proto = NULL;
2568 int use_temp_file = 0;
2571 VariantStream *vs = NULL;
2572 AVDictionary *options = NULL;
2573 int range_length, byterange_mode;
2575 for (i = 0; i < hls->nb_varstreams; i++) {
2576 char *filename = NULL;
2577 vs = &hls->var_streams[i];
2579 vtt_oc = vs->vtt_avf;
2580 old_filename = av_strdup(oc->url);
2583 if (!old_filename) {
2584 return AVERROR(ENOMEM);
2586 if (hls->key_info_file || hls->encrypt) {
2587 av_dict_set(&options, "encryption_key", vs->key_string, 0);
2588 av_dict_set(&options, "encryption_iv", vs->iv_string, 0);
2589 filename = av_asprintf("crypto:%s", oc->url);
2591 filename = av_asprintf("%s", oc->url);
2594 av_freep(&old_filename);
2595 return AVERROR(ENOMEM);
2598 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2599 int range_length = 0;
2600 if (!vs->init_range_length) {
2601 uint8_t *buffer = NULL;
2602 av_write_frame(oc, NULL); /* Flush any buffered data */
2604 range_length = avio_close_dyn_buf(oc->pb, &buffer);
2605 avio_write(vs->out, buffer, range_length);
2607 vs->init_range_length = range_length;
2608 avio_open_dyn_buf(&oc->pb);
2609 vs->packets_written = 0;
2610 vs->start_pos = range_length;
2611 byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
2612 if (!byterange_mode) {
2613 ff_format_io_close(s, &vs->out);
2614 hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
2618 if (!(hls->flags & HLS_SINGLE_FILE)) {
2619 set_http_options(s, &options, hls);
2620 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2622 av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
2625 if (hls->segment_type == SEGMENT_TYPE_FMP4)
2626 write_styp(vs->out);
2628 ret = flush_dynbuf(vs, &range_length);
2632 vs->size = range_length;
2633 ret = hlsenc_io_close(s, &vs->out, filename);
2635 av_log(s, AV_LOG_WARNING, "upload segment failed, will retry with a new http session.\n");
2636 ff_format_io_close(s, &vs->out);
2637 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2639 av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
2642 reflush_dynbuf(vs, &range_length);
2643 ret = hlsenc_io_close(s, &vs->out, filename);
2645 av_log(s, AV_LOG_WARNING, "Failed to upload file '%s' at the end.\n", oc->url);
2649 av_freep(&vs->temp_buffer);
2650 av_dict_free(&options);
2651 av_freep(&filename);
2652 av_write_trailer(oc);
2654 proto = avio_find_protocol_name(oc->url);
2655 use_temp_file = proto && !strcmp(proto, "file") && (hls->flags & HLS_TEMP_FILE);
2658 // rename that segment from .tmp to the real one
2659 if (use_temp_file && !(hls->flags & HLS_SINGLE_FILE)) {
2660 hls_rename_temp_file(s, oc);
2661 av_freep(&old_filename);
2662 old_filename = av_strdup(oc->url);
2664 if (!old_filename) {
2665 return AVERROR(ENOMEM);
2669 /* after av_write_trailer, then duration + 1 duration per packet */
2670 hls_append_segment(s, hls, vs, vs->duration + vs->dpp, vs->start_pos, vs->size);
2672 sls_flag_file_rename(hls, vs, old_filename);
2676 av_write_trailer(vtt_oc);
2677 vs->size = avio_tell(vs->vtt_avf->pb) - vs->start_pos;
2678 ff_format_io_close(s, &vtt_oc->pb);
2680 ret = hls_window(s, 1, vs);
2682 av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
2683 ff_format_io_close(s, &vs->out);
2684 hls_window(s, 1, vs);
2686 ffio_free_dyn_buf(&oc->pb);
2688 av_free(old_filename);
2695 static int hls_init(AVFormatContext *s)
2700 HLSContext *hls = s->priv_data;
2701 const char *pattern;
2702 VariantStream *vs = NULL;
2703 const char *vtt_pattern = hls->flags & HLS_SINGLE_FILE ? ".vtt" : "%d.vtt";
2705 int http_base_proto = ff_is_http_proto(s->url);
2706 int fmp4_init_filename_len = strlen(hls->fmp4_init_filename) + 1;
2707 double initial_program_date_time = av_gettime() / 1000000.0;
2709 if (hls->use_localtime) {
2710 pattern = get_default_pattern_localtime_fmt(s);
2712 pattern = hls->segment_type == SEGMENT_TYPE_FMP4 ? "%d.m4s" : "%d.ts";
2713 if (hls->flags & HLS_SINGLE_FILE)
2717 hls->has_default_key = 0;
2718 hls->has_video_m3u8 = 0;
2719 ret = update_variant_stream_info(s);
2721 av_log(s, AV_LOG_ERROR, "Variant stream info update failed with status %x\n",
2726 if (!hls->method && http_base_proto) {
2727 av_log(hls, AV_LOG_WARNING, "No HTTP method set, hls muxer defaulting to method PUT.\n");
2730 ret = validate_name(hls->nb_varstreams, s->url);
2734 if (hls->segment_filename) {
2735 ret = validate_name(hls->nb_varstreams, hls->segment_filename);
2740 if (av_strcasecmp(hls->fmp4_init_filename, "init.mp4")) {
2741 ret = validate_name(hls->nb_varstreams, hls->fmp4_init_filename);
2746 if (hls->subtitle_filename) {
2747 ret = validate_name(hls->nb_varstreams, hls->subtitle_filename);
2752 if (hls->master_pl_name) {
2753 ret = update_master_pl_info(s);
2755 av_log(s, AV_LOG_ERROR, "Master stream info update failed with status %x\n",
2761 if ((hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) ||
2762 (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH) ||
2763 (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME)) {
2764 time_t t = time(NULL);
2765 if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH) {
2766 hls->start_sequence = av_gettime();
2767 } else if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) {
2768 hls->start_sequence = (int64_t)t;
2769 } else if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME) {
2771 struct tm *p, tmbuf;
2772 if (!(p = localtime_r(&t, &tmbuf)))
2773 return AVERROR(errno);
2774 if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p))
2775 return AVERROR(ENOMEM);
2776 hls->start_sequence = strtoll(b, NULL, 10);
2778 av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
2781 hls->recording_time = (hls->init_time ? hls->init_time : hls->time) * AV_TIME_BASE;
2783 if (hls->flags & HLS_SPLIT_BY_TIME && hls->flags & HLS_INDEPENDENT_SEGMENTS) {
2784 // Independent segments cannot be guaranteed when splitting by time
2785 hls->flags &= ~HLS_INDEPENDENT_SEGMENTS;
2786 av_log(s, AV_LOG_WARNING,
2787 "'split_by_time' and 'independent_segments' cannot be "
2788 "enabled together. Disabling 'independent_segments' flag\n");
2791 for (i = 0; i < hls->nb_varstreams; i++) {
2792 vs = &hls->var_streams[i];
2794 ret = format_name(s->url, &vs->m3u8_name, i, vs->varname);
2798 vs->sequence = hls->start_sequence;
2799 vs->start_pts = AV_NOPTS_VALUE;
2800 vs->end_pts = AV_NOPTS_VALUE;
2801 vs->current_segment_final_filename_fmt[0] = '\0';
2802 vs->initial_prog_date_time = initial_program_date_time;
2804 for (j = 0; j < vs->nb_streams; j++) {
2805 vs->has_video += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO;
2806 /* Get one video stream to reference for split segments
2807 * so use the first video stream index. */
2808 if ((vs->has_video == 1) && (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)) {
2809 vs->reference_stream_index = vs->streams[j]->index;
2811 vs->has_subtitle += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE;
2814 if (vs->has_video > 1)
2815 av_log(s, AV_LOG_WARNING, "More than a single video stream present, expect issues decoding it.\n");
2816 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2817 vs->oformat = av_guess_format("mp4", NULL, NULL);
2819 vs->oformat = av_guess_format("mpegts", NULL, NULL);
2822 return AVERROR_MUXER_NOT_FOUND;
2824 if (hls->segment_filename) {
2825 ret = format_name(hls->segment_filename, &vs->basename, i, vs->varname);
2829 p = strrchr(vs->m3u8_name, '.');
2833 vs->basename = av_asprintf("%s%s", vs->m3u8_name, pattern);
2835 return AVERROR(ENOMEM);
2841 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2842 if (hls->nb_varstreams > 1)
2843 fmp4_init_filename_len += strlen(POSTFIX_PATTERN);
2844 if (hls->flags & HLS_SINGLE_FILE) {
2845 vs->fmp4_init_filename = av_strdup(vs->basename);
2846 if (!vs->fmp4_init_filename)
2847 return AVERROR(ENOMEM);
2849 vs->fmp4_init_filename = av_malloc(fmp4_init_filename_len);
2850 if (!vs->fmp4_init_filename)
2851 return AVERROR(ENOMEM);
2852 av_strlcpy(vs->fmp4_init_filename, hls->fmp4_init_filename,
2853 fmp4_init_filename_len);
2854 if (hls->nb_varstreams > 1) {
2855 if (av_stristr(vs->fmp4_init_filename, "%v")) {
2856 av_freep(&vs->fmp4_init_filename);
2857 ret = format_name(hls->fmp4_init_filename,
2858 &vs->fmp4_init_filename, i, vs->varname);
2860 ret = append_postfix(vs->fmp4_init_filename, fmp4_init_filename_len, i);
2866 p = strrchr(vs->m3u8_name, '/');
2870 vs->base_output_dirname = av_asprintf("%s%s", vs->m3u8_name,
2871 vs->fmp4_init_filename);
2874 vs->base_output_dirname = av_strdup(vs->fmp4_init_filename);
2876 if (!vs->base_output_dirname)
2877 return AVERROR(ENOMEM);
2881 ret = hls->use_localtime ? sls_flag_check_duration_size(hls, vs) : sls_flag_check_duration_size_index(hls);
2885 if (vs->has_subtitle) {
2886 vs->vtt_oformat = av_guess_format("webvtt", NULL, NULL);
2887 if (!vs->vtt_oformat)
2888 return AVERROR_MUXER_NOT_FOUND;
2890 p = strrchr(vs->m3u8_name, '.');
2894 vs->vtt_basename = av_asprintf("%s%s", vs->m3u8_name, vtt_pattern);
2895 if (!vs->vtt_basename)
2896 return AVERROR(ENOMEM);
2898 if (hls->subtitle_filename) {
2899 ret = format_name(hls->subtitle_filename, &vs->vtt_m3u8_name, i, vs->varname);
2903 vs->vtt_m3u8_name = av_asprintf("%s_vtt.m3u8", vs->m3u8_name);
2904 if (!vs->vtt_m3u8_name)
2905 return AVERROR(ENOMEM);
2911 if ((ret = hls_mux_init(s, vs)) < 0)
2914 if (hls->flags & HLS_APPEND_LIST) {
2915 parse_playlist(s, vs->m3u8_name, vs);
2916 vs->discontinuity = 1;
2917 if (hls->init_time > 0) {
2918 av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
2919 " hls_init_time value will have no effect\n");
2921 hls->recording_time = hls->time * AV_TIME_BASE;
2925 if ((ret = hls_start(s, vs)) < 0)
2933 #define OFFSET(x) offsetof(HLSContext, x)
2934 #define E AV_OPT_FLAG_ENCODING_PARAM
2935 static const AVOption options[] = {
2936 {"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
2937 {"hls_time", "set segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
2938 {"hls_init_time", "set segment length in seconds at init list", OFFSET(init_time), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0, FLT_MAX, E},
2939 {"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
2940 {"hls_delete_threshold", "set number of unreferenced segments to keep before deleting", OFFSET(hls_delete_threshold), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, E},
2941 {"hls_ts_options","set hls mpegts list of options for the container format used for hls", OFFSET(format_options), AV_OPT_TYPE_DICT, {.str = NULL}, 0, 0, E},
2942 {"hls_vtt_options","set hls vtt list of options for the container format used for hls", OFFSET(vtt_format_options_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2944 {"hls_wrap", "set number after which the index wraps (will be deprecated)", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
2946 {"hls_allow_cache", "explicitly set whether the client MAY (1) or MUST NOT (0) cache media segments", OFFSET(allowcache), AV_OPT_TYPE_INT, {.i64 = -1}, INT_MIN, INT_MAX, E},
2947 {"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2948 {"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2949 {"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
2950 {"hls_key_info_file", "file with key URI and key file path", OFFSET(key_info_file), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2951 {"hls_enc", "enable AES128 encryption support", OFFSET(encrypt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E},
2952 {"hls_enc_key", "hex-coded 16 byte key to encrypt the segments", OFFSET(key), AV_OPT_TYPE_STRING, .flags = E},
2953 {"hls_enc_key_url", "url to access the key to decrypt the segments", OFFSET(key_url), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2954 {"hls_enc_iv", "hex-coded 16 byte initialization vector", OFFSET(iv), AV_OPT_TYPE_STRING, .flags = E},
2955 {"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2956 {"hls_segment_type", "set hls segment files type", OFFSET(segment_type), AV_OPT_TYPE_INT, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, SEGMENT_TYPE_FMP4, E, "segment_type"},
2957 {"mpegts", "make segment file to mpegts files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, UINT_MAX, E, "segment_type"},
2958 {"fmp4", "make segment file to fragment mp4 files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_FMP4 }, 0, UINT_MAX, E, "segment_type"},
2959 {"hls_fmp4_init_filename", "set fragment mp4 file init filename", OFFSET(fmp4_init_filename), AV_OPT_TYPE_STRING, {.str = "init.mp4"}, 0, 0, E},
2960 {"hls_fmp4_init_resend", "resend fragment mp4 init file after refresh m3u8 every time", OFFSET(resend_init_file), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
2961 {"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
2962 {"single_file", "generate a single media file indexed with byte ranges", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SINGLE_FILE }, 0, UINT_MAX, E, "flags"},
2963 {"temp_file", "write segment and playlist to temporary file and rename when complete", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_TEMP_FILE }, 0, UINT_MAX, E, "flags"},
2964 {"delete_segments", "delete segment files that are no longer part of the playlist", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DELETE_SEGMENTS }, 0, UINT_MAX, E, "flags"},
2965 {"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, "flags"},
2966 {"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, "flags"},
2967 {"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, "flags"},
2968 {"split_by_time", "split the hls segment by time which user set by hls_time", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SPLIT_BY_TIME }, 0, UINT_MAX, E, "flags"},
2969 {"append_list", "append the new segments into old hls segment list", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_APPEND_LIST }, 0, UINT_MAX, E, "flags"},
2970 {"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
2971 {"second_level_segment_index", "include segment index in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_INDEX }, 0, UINT_MAX, E, "flags"},
2972 {"second_level_segment_duration", "include segment duration in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_DURATION }, 0, UINT_MAX, E, "flags"},
2973 {"second_level_segment_size", "include segment size in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_SIZE }, 0, UINT_MAX, E, "flags"},
2974 {"periodic_rekey", "reload keyinfo file periodically for re-keying", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PERIODIC_REKEY }, 0, UINT_MAX, E, "flags"},
2975 {"independent_segments", "add EXT-X-INDEPENDENT-SEGMENTS, whenever applicable", 0, AV_OPT_TYPE_CONST, { .i64 = HLS_INDEPENDENT_SEGMENTS }, 0, UINT_MAX, E, "flags"},
2976 {"iframes_only", "add EXT-X-I-FRAMES-ONLY, whenever applicable", 0, AV_OPT_TYPE_CONST, { .i64 = HLS_I_FRAMES_ONLY }, 0, UINT_MAX, E, "flags"},
2977 #if FF_API_HLS_USE_LOCALTIME
2978 {"use_localtime", "set filename expansion with strftime at segment creation(will be deprecated)", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
2980 {"strftime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
2981 #if FF_API_HLS_USE_LOCALTIME
2982 {"use_localtime_mkdir", "create last directory component in strftime-generated filename(will be deprecated)", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
2984 {"strftime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
2985 {"hls_playlist_type", "set the HLS playlist type", OFFSET(pl_type), AV_OPT_TYPE_INT, {.i64 = PLAYLIST_TYPE_NONE }, 0, PLAYLIST_TYPE_NB-1, E, "pl_type" },
2986 {"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, "pl_type" },
2987 {"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, "pl_type" },
2988 {"method", "set the HTTP method(default: PUT)", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2989 {"hls_start_number_source", "set source of first number in sequence", OFFSET(start_sequence_source_type), AV_OPT_TYPE_INT, {.i64 = HLS_START_SEQUENCE_AS_START_NUMBER }, 0, HLS_START_SEQUENCE_LAST-1, E, "start_sequence_source_type" },
2990 {"generic", "start_number value (default)", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_START_NUMBER }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
2991 {"epoch", "seconds since epoch", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
2992 {"epoch_us", "microseconds since epoch", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
2993 {"datetime", "current datetime as YYYYMMDDhhmmss", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_FORMATTED_DATETIME }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
2994 {"http_user_agent", "override User-Agent field in HTTP header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2995 {"var_stream_map", "Variant stream map string", OFFSET(var_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2996 {"cc_stream_map", "Closed captions stream map string", OFFSET(cc_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2997 {"master_pl_name", "Create HLS master playlist with this name", OFFSET(master_pl_name), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2998 {"master_pl_publish_rate", "Publish master play list every after this many segment intervals", OFFSET(master_publish_rate), AV_OPT_TYPE_INT, {.i64 = 0}, 0, UINT_MAX, E},
2999 {"http_persistent", "Use persistent HTTP connections", OFFSET(http_persistent), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
3000 {"timeout", "set timeout for socket I/O operations", OFFSET(timeout), AV_OPT_TYPE_DURATION, { .i64 = -1 }, -1, INT_MAX, .flags = E },
3001 {"ignore_io_errors", "Ignore IO errors for stable long-duration runs with network output", OFFSET(ignore_io_errors), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
3002 {"headers", "set custom HTTP headers, can override built in default headers", OFFSET(headers), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
3006 static const AVClass hls_class = {
3007 .class_name = "hls muxer",
3008 .item_name = av_default_item_name,
3010 .version = LIBAVUTIL_VERSION_INT,
3014 AVOutputFormat ff_hls_muxer = {
3016 .long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
3017 .extensions = "m3u8",
3018 .priv_data_size = sizeof(HLSContext),
3019 .audio_codec = AV_CODEC_ID_AAC,
3020 .video_codec = AV_CODEC_ID_H264,
3021 .subtitle_codec = AV_CODEC_ID_WEBVTT,
3022 .flags = AVFMT_NOFILE | AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_NODIMENSIONS,
3024 .write_header = hls_write_header,
3025 .write_packet = hls_write_packet,
3026 .write_trailer = hls_write_trailer,
3027 .deinit = hls_deinit,
3028 .priv_class = &hls_class,