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_internal.h"
47 #include "avio_internal.h"
48 #if CONFIG_HTTP_PROTOCOL
51 #include "hlsplaylist.h"
53 #include "os_support.h"
56 HLS_START_SEQUENCE_AS_START_NUMBER = 0,
57 HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH = 1,
58 HLS_START_SEQUENCE_AS_FORMATTED_DATETIME = 2, // YYYYMMDDhhmmss
59 } StartSequenceSourceType;
62 CODEC_ATTRIBUTE_WRITTEN = 0,
63 CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN,
64 } CodecAttributeStatus;
67 #define LINE_BUFFER_SIZE MAX_URL_SIZE
68 #define HLS_MICROSECOND_UNIT 1000000
69 #define POSTFIX_PATTERN "_%d"
71 typedef struct HLSSegment {
72 char filename[MAX_URL_SIZE];
73 char sub_filename[MAX_URL_SIZE];
74 double duration; /* in seconds */
79 int64_t keyframe_size;
80 unsigned var_stream_idx;
82 char key_uri[LINE_BUFFER_SIZE + 1];
83 char iv_string[KEYSIZE*2 + 1];
85 struct HLSSegment *next;
88 typedef enum HLSFlags {
89 // Generate a single media file and use byte ranges in the playlist.
90 HLS_SINGLE_FILE = (1 << 0),
91 HLS_DELETE_SEGMENTS = (1 << 1),
92 HLS_ROUND_DURATIONS = (1 << 2),
93 HLS_DISCONT_START = (1 << 3),
94 HLS_OMIT_ENDLIST = (1 << 4),
95 HLS_SPLIT_BY_TIME = (1 << 5),
96 HLS_APPEND_LIST = (1 << 6),
97 HLS_PROGRAM_DATE_TIME = (1 << 7),
98 HLS_SECOND_LEVEL_SEGMENT_INDEX = (1 << 8), // include segment index in segment filenames when use_localtime e.g.: %%03d
99 HLS_SECOND_LEVEL_SEGMENT_DURATION = (1 << 9), // include segment duration (microsec) in segment filenames when use_localtime e.g.: %%09t
100 HLS_SECOND_LEVEL_SEGMENT_SIZE = (1 << 10), // include segment size (bytes) in segment filenames when use_localtime e.g.: %%014s
101 HLS_TEMP_FILE = (1 << 11),
102 HLS_PERIODIC_REKEY = (1 << 12),
103 HLS_INDEPENDENT_SEGMENTS = (1 << 13),
104 HLS_I_FRAMES_ONLY = (1 << 14),
112 typedef struct VariantStream {
113 unsigned var_stream_idx;
116 ff_const59 AVOutputFormat *oformat;
117 ff_const59 AVOutputFormat *vtt_oformat;
120 int init_range_length;
121 uint8_t *temp_buffer;
123 AVFormatContext *avf;
124 AVFormatContext *vtt_avf;
129 int start_pts_from_audio;
130 double dpp; // duration per packet
133 int64_t video_lastpos;
134 int64_t video_keyframe_pos;
135 int64_t video_keyframe_size;
136 double duration; // last segment duration computed so far, in seconds
137 int64_t start_pos; // last segment starting position
138 int64_t size; // last segment size
140 int discontinuity_set;
142 int reference_stream_index;
144 HLSSegment *segments;
145 HLSSegment *last_segment;
146 HLSSegment *old_segments;
153 double initial_prog_date_time;
154 char current_segment_final_filename_fmt[MAX_URL_SIZE]; // when renaming segments
156 char *fmp4_init_filename;
157 char *base_output_dirname;
160 char codec_attr[128];
161 CodecAttributeStatus attr_status;
162 unsigned int nb_streams;
163 int m3u8_created; /* status of media play-list creation */
164 int is_default; /* default status of audio group */
165 char *language; /* audio lauguage name */
166 char *agroup; /* audio group name */
167 char *sgroup; /* subtitle group name */
168 char *ccgroup; /* closed caption group name */
170 char *varname; // variant name
173 typedef struct ClosedCaptionsStream {
174 char *ccgroup; /* closed caption group name */
175 char *instreamid; /* closed captions INSTREAM-ID */
176 char *language; /* closed captions langauge */
177 } ClosedCaptionsStream;
179 typedef struct HLSContext {
180 const AVClass *class; // Class for private options.
181 int64_t start_sequence;
182 uint32_t start_sequence_source_type; // enum StartSequenceSourceType
184 float time; // Set by a private option.
185 float init_time; // Set by a private option.
186 int max_nb_segments; // Set by a private option.
187 int hls_delete_threshold; // Set by a private option.
189 int wrap; // Set by a private option.
191 uint32_t flags; // enum HLSFlags
192 uint32_t pl_type; // enum PlaylistType
193 char *segment_filename;
194 char *fmp4_init_filename;
197 int use_localtime; ///< flag to expand filename with localtime
198 int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
200 int64_t recording_time;
201 int64_t max_seg_size; // every segment file max size
204 char *vtt_format_options_str;
205 char *subtitle_filename;
206 AVDictionary *format_options;
216 char key_file[LINE_BUFFER_SIZE + 1];
217 char key_uri[LINE_BUFFER_SIZE + 1];
218 char key_string[KEYSIZE*2 + 1];
219 char iv_string[KEYSIZE*2 + 1];
220 AVDictionary *vtt_format_options;
225 VariantStream *var_streams;
226 unsigned int nb_varstreams;
227 ClosedCaptionsStream *cc_streams;
228 unsigned int nb_ccstreams;
230 int master_m3u8_created; /* status of master play-list creation */
231 char *master_m3u8_url; /* URL of the master m3u8 file */
232 int version; /* HLS version */
233 char *var_stream_map; /* user specified variant stream map string */
234 char *cc_stream_map; /* user specified closed caption streams map string */
235 char *master_pl_name;
236 unsigned int master_publish_rate;
238 AVIOContext *m3u8_out;
239 AVIOContext *sub_m3u8_out;
241 int ignore_io_errors;
243 int has_default_key; /* has DEFAULT field of var_stream_map */
244 int has_video_m3u8; /* has video stream m3u8 list */
247 static int hlsenc_io_open(AVFormatContext *s, AVIOContext **pb, char *filename,
248 AVDictionary **options)
250 HLSContext *hls = s->priv_data;
251 int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
252 int err = AVERROR_MUXER_NOT_FOUND;
253 if (!*pb || !http_base_proto || !hls->http_persistent) {
254 err = s->io_open(s, pb, filename, AVIO_FLAG_WRITE, options);
255 #if CONFIG_HTTP_PROTOCOL
257 URLContext *http_url_context = ffio_geturlcontext(*pb);
258 av_assert0(http_url_context);
259 err = ff_http_do_new_request(http_url_context, filename);
261 ff_format_io_close(s, pb);
268 static int hlsenc_io_close(AVFormatContext *s, AVIOContext **pb, char *filename)
270 HLSContext *hls = s->priv_data;
271 int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
275 if (!http_base_proto || !hls->http_persistent || hls->key_info_file || hls->encrypt) {
276 ff_format_io_close(s, pb);
277 #if CONFIG_HTTP_PROTOCOL
279 URLContext *http_url_context = ffio_geturlcontext(*pb);
280 av_assert0(http_url_context);
282 ffurl_shutdown(http_url_context, AVIO_FLAG_WRITE);
283 ret = ff_http_get_shutdown_status(http_url_context);
289 static void set_http_options(AVFormatContext *s, AVDictionary **options, HLSContext *c)
291 int http_base_proto = ff_is_http_proto(s->url);
294 av_dict_set(options, "method", c->method, 0);
295 } else if (http_base_proto) {
296 av_dict_set(options, "method", "PUT", 0);
299 av_dict_set(options, "user_agent", c->user_agent, 0);
300 if (c->http_persistent)
301 av_dict_set_int(options, "multiple_requests", 1, 0);
303 av_dict_set_int(options, "timeout", c->timeout, 0);
305 av_dict_set(options, "headers", c->headers, 0);
308 static void write_codec_attr(AVStream *st, VariantStream *vs)
310 int codec_strlen = strlen(vs->codec_attr);
313 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
315 if (vs->attr_status == CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN)
318 if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
319 uint8_t *data = st->codecpar->extradata;
320 if (data && (data[0] | data[1] | data[2]) == 0 && data[3] == 1 && (data[4] & 0x1F) == 7) {
321 snprintf(attr, sizeof(attr),
322 "avc1.%02x%02x%02x", data[5], data[6], data[7]);
326 } else if (st->codecpar->codec_id == AV_CODEC_ID_MP2) {
327 snprintf(attr, sizeof(attr), "mp4a.40.33");
328 } else if (st->codecpar->codec_id == AV_CODEC_ID_MP3) {
329 snprintf(attr, sizeof(attr), "mp4a.40.34");
330 } else if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
331 /* TODO : For HE-AAC, HE-AACv2, the last digit needs to be set to 5 and 29 respectively */
332 snprintf(attr, sizeof(attr), "mp4a.40.2");
333 } else if (st->codecpar->codec_id == AV_CODEC_ID_AC3) {
334 snprintf(attr, sizeof(attr), "ac-3");
335 } else if (st->codecpar->codec_id == AV_CODEC_ID_EAC3) {
336 snprintf(attr, sizeof(attr), "ec-3");
340 // Don't write the same attribute multiple times
341 if (!av_stristr(vs->codec_attr, attr)) {
342 snprintf(vs->codec_attr + codec_strlen,
343 sizeof(vs->codec_attr) - codec_strlen,
344 "%s%s", codec_strlen ? "," : "", attr);
349 vs->codec_attr[0] = '\0';
350 vs->attr_status = CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN;
354 static int replace_str_data_in_filename(char **s, const char *filename, char placeholder, const char *datastring)
363 av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
370 if (c == '%' && *(p+1) == '%') // %%
372 else if (c == '%' && *(p+1) == placeholder) {
373 av_bprintf(&buf, "%s", datastring);
380 if (addchar_count > 0) {
381 av_bprint_append_data(&buf, p, addchar_count);
385 if (!av_bprint_is_complete(&buf)) {
386 av_bprint_finalize(&buf, NULL);
389 if (av_bprint_finalize(&buf, &new_filename) < 0 || !new_filename)
395 static int replace_int_data_in_filename(char **s, const char *filename, char placeholder, int64_t number)
400 int nd, addchar_count;
404 av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
411 if (c == '%' && *(p+1) == '%') // %%
413 else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) {
416 while (av_isdigit(*(p + addchar_count))) {
417 nd = nd * 10 + *(p + addchar_count) - '0';
421 if (*(p + addchar_count) == placeholder) {
422 av_bprintf(&buf, "%0*"PRId64, (number < 0) ? nd : nd++, number);
423 p += (addchar_count + 1);
431 av_bprint_append_data(&buf, p, addchar_count);
434 if (!av_bprint_is_complete(&buf)) {
435 av_bprint_finalize(&buf, NULL);
438 if (av_bprint_finalize(&buf, &new_filename) < 0 || !new_filename)
444 static void write_styp(AVIOContext *pb)
447 ffio_wfourcc(pb, "styp");
448 ffio_wfourcc(pb, "msdh");
449 avio_wb32(pb, 0); /* minor */
450 ffio_wfourcc(pb, "msdh");
451 ffio_wfourcc(pb, "msix");
454 static int flush_dynbuf(VariantStream *vs, int *range_length)
456 AVFormatContext *ctx = vs->avf;
459 return AVERROR(EINVAL);
463 av_write_frame(ctx, NULL);
466 *range_length = avio_close_dyn_buf(ctx->pb, &vs->temp_buffer);
468 avio_write(vs->out, vs->temp_buffer, *range_length);
472 return avio_open_dyn_buf(&ctx->pb);
475 static void reflush_dynbuf(VariantStream *vs, int *range_length)
478 avio_write(vs->out, vs->temp_buffer, *range_length);
482 #define SEPARATOR '\\'
484 #define SEPARATOR '/'
487 static int hls_delete_file(HLSContext *hls, AVFormatContext *avf,
488 const char *path, const char *proto)
490 if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
491 AVDictionary *opt = NULL;
492 AVIOContext *out = NULL;
494 av_dict_set(&opt, "method", "DELETE", 0);
495 ret = avf->io_open(avf, &out, path, AVIO_FLAG_WRITE, &opt);
498 return hls->ignore_io_errors ? 1 : ret;
499 ff_format_io_close(avf, &out);
500 } else if (unlink(path) < 0) {
501 av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
502 path, strerror(errno));
507 static int hls_delete_old_segments(AVFormatContext *s, HLSContext *hls,
511 HLSSegment *segment, *previous_segment = NULL;
512 float playlist_duration = 0.0f;
516 char *dirname = NULL;
517 char *dirname_r = NULL;
518 char *dirname_repl = NULL;
519 char *vtt_dirname = NULL;
520 char *vtt_dirname_r = NULL;
521 const char *proto = NULL;
523 av_bprint_init(&path, 0, AV_BPRINT_SIZE_UNLIMITED);
525 segment = vs->segments;
527 playlist_duration += segment->duration;
528 segment = segment->next;
531 segment = vs->old_segments;
534 playlist_duration -= segment->duration;
535 previous_segment = segment;
536 segment = previous_segment->next;
538 if (playlist_duration <= -previous_segment->duration) {
539 previous_segment->next = NULL;
542 if (segment_cnt >= hls->hls_delete_threshold) {
543 previous_segment->next = NULL;
548 if (segment && !hls->use_localtime_mkdir) {
549 dirname_r = hls->segment_filename ? av_strdup(hls->segment_filename): av_strdup(vs->avf->url);
550 dirname = (char*)av_dirname(dirname_r);
553 /* if %v is present in the file's directory
554 * all segment belongs to the same variant, so do it only once before the loop*/
555 if (dirname && av_stristr(dirname, "%v")) {
557 if (replace_int_data_in_filename(&dirname_repl, dirname, 'v', segment->var_stream_idx) < 1) {
558 ret = AVERROR(EINVAL);
562 if (replace_str_data_in_filename(&dirname_repl, dirname, 'v', vs->varname) < 1) {
563 ret = AVERROR(EINVAL);
568 dirname = dirname_repl;
572 av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n",
574 if (!hls->use_localtime_mkdir) // segment->filename contains basename only
575 av_bprintf(&path, "%s%c", dirname, SEPARATOR);
576 av_bprintf(&path, "%s", segment->filename);
578 if (!av_bprint_is_complete(&path)) {
579 ret = AVERROR(ENOMEM);
583 proto = avio_find_protocol_name(s->url);
584 if (ret = hls_delete_file(hls, vs->avf, path.str, proto))
587 if ((segment->sub_filename[0] != '\0')) {
588 vtt_dirname_r = av_strdup(vs->vtt_avf->url);
589 vtt_dirname = (char*)av_dirname(vtt_dirname_r);
591 av_bprint_clear(&path);
592 av_bprintf(&path, "%s%c%s", vtt_dirname, SEPARATOR,
593 segment->sub_filename);
594 av_freep(&vtt_dirname_r);
596 if (!av_bprint_is_complete(&path)) {
597 ret = AVERROR(ENOMEM);
601 if (ret = hls_delete_file(hls, vs->vtt_avf, path.str, proto))
604 av_bprint_clear(&path);
605 previous_segment = segment;
606 segment = previous_segment->next;
607 av_freep(&previous_segment);
611 av_bprint_finalize(&path, NULL);
612 av_freep(&dirname_r);
613 av_freep(&dirname_repl);
618 static int randomize(uint8_t *buf, int len)
621 gcry_randomize(buf, len, GCRY_VERY_STRONG_RANDOM);
624 if (RAND_bytes(buf, len))
627 return AVERROR(ENOSYS);
629 return AVERROR(EINVAL);
632 static int do_encrypt(AVFormatContext *s, VariantStream *vs)
634 HLSContext *hls = s->priv_data;
638 uint8_t key[KEYSIZE];
639 char * key_basename_source = (hls->master_m3u8_url) ? hls->master_m3u8_url : s->url;
641 len = strlen(key_basename_source) + 4 + 1;
642 hls->key_basename = av_mallocz(len);
643 if (!hls->key_basename)
644 return AVERROR(ENOMEM);
646 av_strlcpy(hls->key_basename, key_basename_source, len);
647 av_strlcat(hls->key_basename, ".key", len);
650 av_strlcpy(hls->key_file, hls->key_url, sizeof(hls->key_file));
651 av_strlcpy(hls->key_uri, hls->key_url, sizeof(hls->key_uri));
653 av_strlcpy(hls->key_file, hls->key_basename, sizeof(hls->key_file));
654 av_strlcpy(hls->key_uri, hls->key_basename, sizeof(hls->key_uri));
657 if (!*hls->iv_string) {
658 uint8_t iv[16] = { 0 };
662 AV_WB64(iv + 8, vs->sequence);
664 memcpy(iv, hls->iv, sizeof(iv));
666 ff_data_to_hex(buf, iv, sizeof(iv), 0);
668 memcpy(hls->iv_string, buf, sizeof(hls->iv_string));
671 if (!*hls->key_uri) {
672 av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
673 return AVERROR(EINVAL);
676 if (!*hls->key_file) {
677 av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
678 return AVERROR(EINVAL);
681 if (!*hls->key_string) {
682 AVDictionary *options = NULL;
684 if ((ret = randomize(key, sizeof(key))) < 0) {
685 av_log(s, AV_LOG_ERROR, "Cannot generate a strong random key\n");
689 memcpy(key, hls->key, sizeof(key));
692 ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
693 set_http_options(s, &options, hls);
694 ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_WRITE, &options);
695 av_dict_free(&options);
698 avio_seek(pb, 0, SEEK_CUR);
699 avio_write(pb, key, KEYSIZE);
706 static int hls_encryption_start(AVFormatContext *s)
708 HLSContext *hls = s->priv_data;
711 uint8_t key[KEYSIZE];
712 AVDictionary *options = NULL;
714 set_http_options(s, &options, hls);
715 ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, &options);
716 av_dict_free(&options);
718 av_log(hls, AV_LOG_ERROR,
719 "error opening key info file %s\n", hls->key_info_file);
723 ff_get_line(pb, hls->key_uri, sizeof(hls->key_uri));
724 hls->key_uri[strcspn(hls->key_uri, "\r\n")] = '\0';
726 ff_get_line(pb, hls->key_file, sizeof(hls->key_file));
727 hls->key_file[strcspn(hls->key_file, "\r\n")] = '\0';
729 ff_get_line(pb, hls->iv_string, sizeof(hls->iv_string));
730 hls->iv_string[strcspn(hls->iv_string, "\r\n")] = '\0';
732 ff_format_io_close(s, &pb);
734 if (!*hls->key_uri) {
735 av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
736 return AVERROR(EINVAL);
739 if (!*hls->key_file) {
740 av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
741 return AVERROR(EINVAL);
744 set_http_options(s, &options, hls);
745 ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_READ, &options);
746 av_dict_free(&options);
748 av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", hls->key_file);
752 ret = avio_read(pb, key, sizeof(key));
753 ff_format_io_close(s, &pb);
754 if (ret != sizeof(key)) {
755 av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", hls->key_file);
756 if (ret >= 0 || ret == AVERROR_EOF)
757 ret = AVERROR(EINVAL);
760 ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
765 static int hls_mux_init(AVFormatContext *s, VariantStream *vs)
767 AVDictionary *options = NULL;
768 HLSContext *hls = s->priv_data;
770 AVFormatContext *vtt_oc = NULL;
771 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
772 int remaining_options;
775 ret = avformat_alloc_output_context2(&vs->avf, vs->oformat, NULL, NULL);
780 oc->url = av_strdup("");
782 return AVERROR(ENOMEM);
784 oc->oformat = vs->oformat;
785 oc->interrupt_callback = s->interrupt_callback;
786 oc->max_delay = s->max_delay;
787 oc->opaque = s->opaque;
788 oc->io_open = s->io_open;
789 oc->io_close = s->io_close;
790 oc->strict_std_compliance = s->strict_std_compliance;
791 av_dict_copy(&oc->metadata, s->metadata, 0);
793 if (vs->vtt_oformat) {
794 ret = avformat_alloc_output_context2(&vs->vtt_avf, vs->vtt_oformat, NULL, NULL);
797 vtt_oc = vs->vtt_avf;
798 vtt_oc->oformat = vs->vtt_oformat;
799 av_dict_copy(&vtt_oc->metadata, s->metadata, 0);
802 for (i = 0; i < vs->nb_streams; i++) {
804 AVFormatContext *loc;
805 if (vs->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
810 if (!(st = avformat_new_stream(loc, NULL)))
811 return AVERROR(ENOMEM);
812 avcodec_parameters_copy(st->codecpar, vs->streams[i]->codecpar);
813 if (!oc->oformat->codec_tag ||
814 av_codec_get_id (oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_tag) == st->codecpar->codec_id ||
815 av_codec_get_tag(oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_id) <= 0) {
816 st->codecpar->codec_tag = vs->streams[i]->codecpar->codec_tag;
818 st->codecpar->codec_tag = 0;
821 st->sample_aspect_ratio = vs->streams[i]->sample_aspect_ratio;
822 st->time_base = vs->streams[i]->time_base;
823 av_dict_copy(&st->metadata, vs->streams[i]->metadata, 0);
826 vs->packets_written = 1;
830 if (hls->segment_type == SEGMENT_TYPE_FMP4 && hls->max_seg_size > 0) {
831 if (hls->http_persistent > 0) {
832 //TODO: Support fragment fmp4 for http persistent in HLS muxer.
833 av_log(s, AV_LOG_WARNING, "http persistent mode is currently unsupported for fragment mp4 in the HLS muxer.\n");
835 if (hls->max_seg_size > 0) {
836 av_log(s, AV_LOG_WARNING, "Multi-file byterange mode is currently unsupported in the HLS muxer.\n");
837 return AVERROR_PATCHWELCOME;
841 vs->packets_written = 0;
842 vs->init_range_length = 0;
844 if ((ret = avio_open_dyn_buf(&oc->pb)) < 0)
847 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
848 set_http_options(s, &options, hls);
849 if (byterange_mode) {
850 ret = hlsenc_io_open(s, &vs->out, vs->basename, &options);
852 ret = hlsenc_io_open(s, &vs->out, vs->base_output_dirname, &options);
854 av_dict_free(&options);
857 av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", vs->fmp4_init_filename);
861 av_dict_copy(&options, hls->format_options, 0);
862 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
863 av_dict_set(&options, "fflags", "-autobsf", 0);
864 av_dict_set(&options, "movflags", "+frag_custom+dash+delay_moov", AV_DICT_APPEND);
866 /* We only require one PAT/PMT per segment. */
868 snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1);
869 av_dict_set(&options, "sdt_period", period, AV_DICT_DONT_OVERWRITE);
870 av_dict_set(&options, "pat_period", period, AV_DICT_DONT_OVERWRITE);
872 ret = avformat_init_output(oc, &options);
873 remaining_options = av_dict_count(options);
874 av_dict_free(&options);
877 if (remaining_options) {
878 av_log(s, AV_LOG_ERROR, "Some of the provided format options are not recognized\n");
879 return AVERROR(EINVAL);
885 static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename)
888 if (!av_strcasecmp(segment->filename,filename))
890 segment = segment->next;
892 return (HLSSegment *) NULL;
895 static int sls_flags_filename_process(struct AVFormatContext *s, HLSContext *hls,
896 VariantStream *vs, HLSSegment *en,
897 double duration, int64_t pos, int64_t size)
899 if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
900 strlen(vs->current_segment_final_filename_fmt)) {
901 char * new_url = av_strdup(vs->current_segment_final_filename_fmt);
903 return AVERROR(ENOMEM);
905 ff_format_set_url(vs->avf, new_url);
906 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
907 char *filename = NULL;
908 if (replace_int_data_in_filename(&filename, vs->avf->url, 's', pos + size) < 1) {
909 av_log(hls, AV_LOG_ERROR,
910 "Invalid second level segment filename template '%s', "
911 "you can try to remove second_level_segment_size flag\n",
914 return AVERROR(EINVAL);
916 ff_format_set_url(vs->avf, filename);
918 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
919 char *filename = NULL;
920 if (replace_int_data_in_filename(&filename, vs->avf->url,
921 't', (int64_t)round(duration * HLS_MICROSECOND_UNIT)) < 1) {
922 av_log(hls, AV_LOG_ERROR,
923 "Invalid second level segment filename template '%s', "
924 "you can try to remove second_level_segment_time flag\n",
927 return AVERROR(EINVAL);
929 ff_format_set_url(vs->avf, filename);
935 static int sls_flag_check_duration_size_index(HLSContext *hls)
939 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
940 av_log(hls, AV_LOG_ERROR,
941 "second_level_segment_duration hls_flag requires strftime to be true\n");
942 ret = AVERROR(EINVAL);
944 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
945 av_log(hls, AV_LOG_ERROR,
946 "second_level_segment_size hls_flag requires strfime to be true\n");
947 ret = AVERROR(EINVAL);
949 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
950 av_log(hls, AV_LOG_ERROR,
951 "second_level_segment_index hls_flag requires strftime to be true\n");
952 ret = AVERROR(EINVAL);
958 static int sls_flag_check_duration_size(HLSContext *hls, VariantStream *vs)
960 const char *proto = avio_find_protocol_name(vs->basename);
961 int segment_renaming_ok = proto && !strcmp(proto, "file");
964 if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) {
965 av_log(hls, AV_LOG_ERROR,
966 "second_level_segment_duration hls_flag works only with file protocol segment names\n");
967 ret = AVERROR(EINVAL);
969 if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) {
970 av_log(hls, AV_LOG_ERROR,
971 "second_level_segment_size hls_flag works only with file protocol segment names\n");
972 ret = AVERROR(EINVAL);
978 static void sls_flag_file_rename(HLSContext *hls, VariantStream *vs, char *old_filename) {
979 if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
980 strlen(vs->current_segment_final_filename_fmt)) {
981 ff_rename(old_filename, vs->avf->url, hls);
985 static int sls_flag_use_localtime_filename(AVFormatContext *oc, HLSContext *c, VariantStream *vs)
987 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
988 char *filename = NULL;
989 if (replace_int_data_in_filename(&filename,
991 oc->url, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
993 oc->url, 'd', vs->sequence) < 1) {
995 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
996 "you can try to remove second_level_segment_index flag\n",
999 return AVERROR(EINVAL);
1001 ff_format_set_url(oc, filename);
1003 if (c->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) {
1004 av_strlcpy(vs->current_segment_final_filename_fmt, oc->url,
1005 sizeof(vs->current_segment_final_filename_fmt));
1006 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
1007 char *filename = NULL;
1008 if (replace_int_data_in_filename(&filename, oc->url, 's', 0) < 1) {
1009 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
1010 "you can try to remove second_level_segment_size flag\n",
1012 av_freep(&filename);
1013 return AVERROR(EINVAL);
1015 ff_format_set_url(oc, filename);
1017 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
1018 char *filename = NULL;
1019 if (replace_int_data_in_filename(&filename, oc->url, 't', 0) < 1) {
1020 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
1021 "you can try to remove second_level_segment_time flag\n",
1023 av_freep(&filename);
1024 return AVERROR(EINVAL);
1026 ff_format_set_url(oc, filename);
1032 /* Create a new segment and append it to the segment list */
1033 static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls,
1034 VariantStream *vs, double duration, int64_t pos,
1037 HLSSegment *en = av_malloc(sizeof(*en));
1038 const char *filename;
1039 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1043 return AVERROR(ENOMEM);
1045 en->var_stream_idx = vs->var_stream_idx;
1046 ret = sls_flags_filename_process(s, hls, vs, en, duration, pos, size);
1052 filename = av_basename(vs->avf->url);
1054 if (hls->use_localtime_mkdir) {
1055 filename = vs->avf->url;
1057 if ((find_segment_by_filename(vs->segments, filename) || find_segment_by_filename(vs->old_segments, filename))
1058 && !byterange_mode) {
1059 av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename);
1061 av_strlcpy(en->filename, filename, sizeof(en->filename));
1063 if (vs->has_subtitle)
1064 av_strlcpy(en->sub_filename, av_basename(vs->vtt_avf->url), sizeof(en->sub_filename));
1066 en->sub_filename[0] = '\0';
1068 en->duration = duration;
1071 en->keyframe_pos = vs->video_keyframe_pos;
1072 en->keyframe_size = vs->video_keyframe_size;
1076 if (vs->discontinuity) {
1078 vs->discontinuity = 0;
1081 if (hls->key_info_file || hls->encrypt) {
1082 av_strlcpy(en->key_uri, hls->key_uri, sizeof(en->key_uri));
1083 av_strlcpy(en->iv_string, hls->iv_string, sizeof(en->iv_string));
1089 vs->last_segment->next = en;
1091 vs->last_segment = en;
1093 // EVENT or VOD playlists imply sliding window cannot be used
1094 if (hls->pl_type != PLAYLIST_TYPE_NONE)
1095 hls->max_nb_segments = 0;
1097 if (hls->max_nb_segments && vs->nb_entries >= hls->max_nb_segments) {
1099 vs->initial_prog_date_time += en->duration;
1100 vs->segments = en->next;
1101 if (en && hls->flags & HLS_DELETE_SEGMENTS &&
1103 !(hls->flags & HLS_SINGLE_FILE || hls->wrap)) {
1105 !(hls->flags & HLS_SINGLE_FILE)) {
1107 en->next = vs->old_segments;
1108 vs->old_segments = en;
1109 if ((ret = hls_delete_old_segments(s, hls, vs)) < 0)
1116 if (hls->max_seg_size > 0) {
1124 static int parse_playlist(AVFormatContext *s, const char *url, VariantStream *vs)
1126 HLSContext *hls = s->priv_data;
1128 int ret = 0, is_segment = 0;
1129 int64_t new_start_pos;
1130 char line[MAX_URL_SIZE];
1134 if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ,
1135 &s->interrupt_callback, NULL,
1136 s->protocol_whitelist, s->protocol_blacklist)) < 0)
1139 ff_get_chomp_line(in, line, sizeof(line));
1140 if (strcmp(line, "#EXTM3U")) {
1141 ret = AVERROR_INVALIDDATA;
1145 vs->discontinuity = 0;
1146 while (!avio_feof(in)) {
1147 ff_get_chomp_line(in, line, sizeof(line));
1148 if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
1149 int64_t tmp_sequence = strtoll(ptr, NULL, 10);
1150 if (tmp_sequence < vs->sequence)
1151 av_log(hls, AV_LOG_VERBOSE,
1152 "Found playlist sequence number was smaller """
1153 "than specified start sequence number: %"PRId64" < %"PRId64", "
1154 "omitting\n", tmp_sequence, hls->start_sequence);
1156 av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence);
1157 vs->sequence = tmp_sequence;
1159 } else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) {
1161 vs->discontinuity = 1;
1162 } else if (av_strstart(line, "#EXTINF:", &ptr)) {
1164 vs->duration = atof(ptr);
1165 } else if (av_stristart(line, "#EXT-X-KEY:", &ptr)) {
1166 ptr = av_stristr(line, "URI=\"");
1168 ptr += strlen("URI=\"");
1169 end = av_stristr(ptr, ",");
1171 av_strlcpy(hls->key_uri, ptr, end - ptr);
1173 av_strlcpy(hls->key_uri, ptr, sizeof(hls->key_uri));
1177 ptr = av_stristr(line, "IV=0x");
1179 ptr += strlen("IV=0x");
1180 end = av_stristr(ptr, ",");
1182 av_strlcpy(hls->iv_string, ptr, end - ptr);
1184 av_strlcpy(hls->iv_string, ptr, sizeof(hls->iv_string));
1188 } else if (av_strstart(line, "#", NULL)) {
1190 } else if (line[0]) {
1192 char *new_file = av_strdup(line);
1194 ret = AVERROR(ENOMEM);
1197 ff_format_set_url(vs->avf, new_file);
1199 new_start_pos = avio_tell(vs->avf->pb);
1200 vs->size = new_start_pos - vs->start_pos;
1201 vs->initial_prog_date_time -= vs->duration; // this is a previously existing segment
1202 ret = hls_append_segment(s, hls, vs, vs->duration, vs->start_pos, vs->size);
1205 vs->start_pos = new_start_pos;
1215 static void hls_free_segments(HLSSegment *p)
1226 static int hls_rename_temp_file(AVFormatContext *s, AVFormatContext *oc)
1228 size_t len = strlen(oc->url);
1229 char *final_filename = av_strdup(oc->url);
1232 if (!final_filename)
1233 return AVERROR(ENOMEM);
1234 final_filename[len-4] = '\0';
1235 ret = ff_rename(oc->url, final_filename, s);
1236 oc->url[len-4] = '\0';
1237 av_freep(&final_filename);
1241 static const char* get_relative_url(const char *master_url, const char *media_url)
1243 const char *p = strrchr(master_url, '/');
1244 size_t base_len = 0;
1246 if (!p) p = strrchr(master_url, '\\');
1249 base_len = p - master_url;
1250 if (av_strncasecmp(master_url, media_url, base_len)) {
1251 av_log(NULL, AV_LOG_WARNING, "Unable to find relative url\n");
1258 return media_url + base_len + 1;
1261 static int64_t get_stream_bit_rate(AVStream *stream)
1263 AVCPBProperties *props = (AVCPBProperties*)av_stream_get_side_data(
1265 AV_PKT_DATA_CPB_PROPERTIES,
1269 if (stream->codecpar->bit_rate)
1270 return stream->codecpar->bit_rate;
1272 return props->max_bitrate;
1277 static int create_master_playlist(AVFormatContext *s,
1278 VariantStream * const input_vs)
1280 HLSContext *hls = s->priv_data;
1281 VariantStream *vs, *temp_vs;
1282 AVStream *vid_st, *aud_st;
1283 AVDictionary *options = NULL;
1286 const char *m3u8_rel_name = NULL;
1287 const char *vtt_m3u8_rel_name = NULL;
1289 char *sgroup = NULL;
1290 ClosedCaptionsStream *ccs;
1291 const char *proto = avio_find_protocol_name(hls->master_m3u8_url);
1292 int is_file_proto = proto && !strcmp(proto, "file");
1293 int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || hls->master_publish_rate);
1294 char temp_filename[MAX_URL_SIZE];
1296 input_vs->m3u8_created = 1;
1297 if (!hls->master_m3u8_created) {
1298 /* For the first time, wait until all the media playlists are created */
1299 for (i = 0; i < hls->nb_varstreams; i++)
1300 if (!hls->var_streams[i].m3u8_created)
1303 /* Keep publishing the master playlist at the configured rate */
1304 if (&hls->var_streams[0] != input_vs || !hls->master_publish_rate ||
1305 input_vs->number % hls->master_publish_rate)
1309 set_http_options(s, &options, hls);
1310 snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", hls->master_m3u8_url);
1311 ret = hlsenc_io_open(s, &hls->m3u8_out, temp_filename, &options);
1312 av_dict_free(&options);
1314 av_log(s, AV_LOG_ERROR, "Failed to open master play list file '%s'\n",
1319 ff_hls_write_playlist_version(hls->m3u8_out, hls->version);
1321 for (i = 0; i < hls->nb_ccstreams; i++) {
1322 ccs = &(hls->cc_streams[i]);
1323 avio_printf(hls->m3u8_out, "#EXT-X-MEDIA:TYPE=CLOSED-CAPTIONS");
1324 avio_printf(hls->m3u8_out, ",GROUP-ID=\"%s\"", ccs->ccgroup);
1325 avio_printf(hls->m3u8_out, ",NAME=\"%s\"", ccs->instreamid);
1327 avio_printf(hls->m3u8_out, ",LANGUAGE=\"%s\"", ccs->language);
1328 avio_printf(hls->m3u8_out, ",INSTREAM-ID=\"%s\"\n", ccs->instreamid);
1331 /* For audio only variant streams add #EXT-X-MEDIA tag with attributes*/
1332 for (i = 0; i < hls->nb_varstreams; i++) {
1333 vs = &(hls->var_streams[i]);
1335 if (vs->has_video || vs->has_subtitle || !vs->agroup)
1338 m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
1339 if (!m3u8_rel_name) {
1340 av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
1344 ff_hls_write_audio_rendition(hls->m3u8_out, vs->agroup, m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
1347 /* For variant streams with video add #EXT-X-STREAM-INF tag with attributes*/
1348 for (i = 0; i < hls->nb_varstreams; i++) {
1349 vs = &(hls->var_streams[i]);
1351 m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
1352 if (!m3u8_rel_name) {
1353 av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
1359 for (j = 0; j < vs->nb_streams; j++) {
1360 if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
1361 vid_st = vs->streams[j];
1362 else if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
1363 aud_st = vs->streams[j];
1366 if (!vid_st && !aud_st) {
1367 av_log(s, AV_LOG_WARNING, "Media stream not found\n");
1372 * Traverse through the list of audio only rendition streams and find
1373 * the rendition which has highest bitrate in the same audio group
1376 for (j = 0; j < hls->nb_varstreams; j++) {
1377 temp_vs = &(hls->var_streams[j]);
1378 if (!temp_vs->has_video && !temp_vs->has_subtitle &&
1380 !av_strcasecmp(temp_vs->agroup, vs->agroup)) {
1382 aud_st = temp_vs->streams[0];
1383 if (temp_vs->streams[0]->codecpar->bit_rate >
1384 aud_st->codecpar->bit_rate)
1385 aud_st = temp_vs->streams[0];
1392 bandwidth += get_stream_bit_rate(vid_st);
1394 bandwidth += get_stream_bit_rate(aud_st);
1395 bandwidth += bandwidth / 10;
1398 if (vid_st && vs->ccgroup) {
1399 /* check if this group name is available in the cc map string */
1400 for (j = 0; j < hls->nb_ccstreams; j++) {
1401 ccs = &(hls->cc_streams[j]);
1402 if (!av_strcasecmp(ccs->ccgroup, vs->ccgroup)) {
1403 ccgroup = vs->ccgroup;
1407 if (j == hls->nb_ccstreams)
1408 av_log(s, AV_LOG_WARNING, "mapping ccgroup %s not found\n",
1412 if (vid_st && vs->sgroup) {
1413 sgroup = vs->sgroup;
1414 vtt_m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->vtt_m3u8_name);
1415 if (!vtt_m3u8_rel_name) {
1416 av_log(s, AV_LOG_WARNING, "Unable to find relative subtitle URL\n");
1420 ff_hls_write_subtitle_rendition(hls->m3u8_out, sgroup, vtt_m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
1423 if (!hls->has_default_key || !hls->has_video_m3u8) {
1424 ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
1425 aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup);
1428 ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
1429 aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup);
1435 hls->master_m3u8_created = 1;
1436 hlsenc_io_close(s, &hls->m3u8_out, temp_filename);
1438 ff_rename(temp_filename, hls->master_m3u8_url, s);
1443 static int hls_window(AVFormatContext *s, int last, VariantStream *vs)
1445 HLSContext *hls = s->priv_data;
1447 int target_duration = 0;
1449 char temp_filename[MAX_URL_SIZE];
1450 char temp_vtt_filename[MAX_URL_SIZE];
1451 int64_t sequence = FFMAX(hls->start_sequence, vs->sequence - vs->nb_entries);
1452 const char *proto = avio_find_protocol_name(vs->m3u8_name);
1453 int is_file_proto = proto && !strcmp(proto, "file");
1454 int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || !(hls->pl_type == PLAYLIST_TYPE_VOD));
1455 static unsigned warned_non_file;
1456 char *key_uri = NULL;
1457 char *iv_string = NULL;
1458 AVDictionary *options = NULL;
1459 double prog_date_time = vs->initial_prog_date_time;
1460 double *prog_date_time_p = (hls->flags & HLS_PROGRAM_DATE_TIME) ? &prog_date_time : NULL;
1461 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1464 if (byterange_mode) {
1469 if (hls->flags & HLS_INDEPENDENT_SEGMENTS) {
1473 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1477 if (!is_file_proto && (hls->flags & HLS_TEMP_FILE) && !warned_non_file++)
1478 av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
1480 set_http_options(s, &options, hls);
1481 snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", vs->m3u8_name);
1482 if ((ret = hlsenc_io_open(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename, &options)) < 0) {
1483 if (hls->ignore_io_errors)
1488 for (en = vs->segments; en; en = en->next) {
1489 if (target_duration <= en->duration)
1490 target_duration = lrint(en->duration);
1493 vs->discontinuity_set = 0;
1494 ff_hls_write_playlist_header(byterange_mode ? hls->m3u8_out : vs->out, hls->version, hls->allowcache,
1495 target_duration, sequence, hls->pl_type, hls->flags & HLS_I_FRAMES_ONLY);
1497 if ((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && vs->discontinuity_set==0 ) {
1498 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-DISCONTINUITY\n");
1499 vs->discontinuity_set = 1;
1501 if (vs->has_video && (hls->flags & HLS_INDEPENDENT_SEGMENTS)) {
1502 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-INDEPENDENT-SEGMENTS\n");
1504 for (en = vs->segments; en; en = en->next) {
1505 if ((hls->encrypt || hls->key_info_file) && (!key_uri || strcmp(en->key_uri, key_uri) ||
1506 av_strcasecmp(en->iv_string, iv_string))) {
1507 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri);
1509 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, ",IV=0x%s", en->iv_string);
1510 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "\n");
1511 key_uri = en->key_uri;
1512 iv_string = en->iv_string;
1515 if ((hls->segment_type == SEGMENT_TYPE_FMP4) && (en == vs->segments)) {
1516 ff_hls_write_init_file(byterange_mode ? hls->m3u8_out : vs->out, (hls->flags & HLS_SINGLE_FILE) ? en->filename : vs->fmp4_init_filename,
1517 hls->flags & HLS_SINGLE_FILE, vs->init_range_length, 0);
1520 ret = ff_hls_write_file_entry(byterange_mode ? hls->m3u8_out : vs->out, en->discont, byterange_mode,
1521 en->duration, hls->flags & HLS_ROUND_DURATIONS,
1522 en->size, en->pos, vs->baseurl,
1523 en->filename, prog_date_time_p, en->keyframe_size, en->keyframe_pos, hls->flags & HLS_I_FRAMES_ONLY);
1525 av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
1529 if (last && (hls->flags & HLS_OMIT_ENDLIST)==0)
1530 ff_hls_write_end_list(byterange_mode ? hls->m3u8_out : vs->out);
1532 if (vs->vtt_m3u8_name) {
1533 snprintf(temp_vtt_filename, sizeof(temp_vtt_filename), use_temp_file ? "%s.tmp" : "%s", vs->vtt_m3u8_name);
1534 if ((ret = hlsenc_io_open(s, &hls->sub_m3u8_out, temp_vtt_filename, &options)) < 0) {
1535 if (hls->ignore_io_errors)
1539 ff_hls_write_playlist_header(hls->sub_m3u8_out, hls->version, hls->allowcache,
1540 target_duration, sequence, PLAYLIST_TYPE_NONE, 0);
1541 for (en = vs->segments; en; en = en->next) {
1542 ret = ff_hls_write_file_entry(hls->sub_m3u8_out, 0, byterange_mode,
1543 en->duration, 0, en->size, en->pos,
1544 vs->baseurl, en->sub_filename, NULL, 0, 0, 0);
1546 av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
1551 ff_hls_write_end_list(hls->sub_m3u8_out);
1556 av_dict_free(&options);
1557 ret = hlsenc_io_close(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename);
1561 hlsenc_io_close(s, &hls->sub_m3u8_out, vs->vtt_m3u8_name);
1562 if (use_temp_file) {
1563 ff_rename(temp_filename, vs->m3u8_name, s);
1564 if (vs->vtt_m3u8_name)
1565 ff_rename(temp_vtt_filename, vs->vtt_m3u8_name, s);
1567 if (ret >= 0 && hls->master_pl_name)
1568 if (create_master_playlist(s, vs) < 0)
1569 av_log(s, AV_LOG_WARNING, "Master playlist creation failed\n");
1574 static int hls_start(AVFormatContext *s, VariantStream *vs)
1576 HLSContext *c = s->priv_data;
1577 AVFormatContext *oc = vs->avf;
1578 AVFormatContext *vtt_oc = vs->vtt_avf;
1579 AVDictionary *options = NULL;
1580 const char *proto = NULL;
1581 int use_temp_file = 0;
1582 char iv_string[KEYSIZE*2 + 1];
1585 if (c->flags & HLS_SINGLE_FILE) {
1586 char *new_name = av_strdup(vs->basename);
1588 return AVERROR(ENOMEM);
1589 ff_format_set_url(oc, new_name);
1590 if (vs->vtt_basename) {
1591 new_name = av_strdup(vs->vtt_basename);
1593 return AVERROR(ENOMEM);
1594 ff_format_set_url(vtt_oc, new_name);
1596 } else if (c->max_seg_size > 0) {
1597 char *filename = NULL;
1598 if (replace_int_data_in_filename(&filename,
1600 vs->basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1602 vs->basename, 'd', vs->sequence) < 1) {
1604 av_freep(&filename);
1605 av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -strftime 1 with it\n", vs->basename);
1606 return AVERROR(EINVAL);
1608 ff_format_set_url(oc, filename);
1610 if (c->use_localtime) {
1612 struct tm *tm, tmpbuf;
1613 int bufsize = strlen(vs->basename) + MAX_URL_SIZE;
1614 char *buf = av_mallocz(bufsize);
1616 return AVERROR(ENOMEM);
1618 tm = localtime_r(&now0, &tmpbuf);
1619 ff_format_set_url(oc, buf);
1620 if (!strftime(oc->url, bufsize, vs->basename, tm)) {
1621 av_log(oc, AV_LOG_ERROR, "Could not get segment filename with strftime\n");
1622 return AVERROR(EINVAL);
1625 err = sls_flag_use_localtime_filename(oc, c, vs);
1627 return AVERROR(ENOMEM);
1630 if (c->use_localtime_mkdir) {
1632 char *fn_copy = av_strdup(oc->url);
1633 dir = av_dirname(fn_copy);
1634 if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
1635 av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir);
1637 return AVERROR(errno);
1642 char *filename = NULL;
1643 if (replace_int_data_in_filename(&filename,
1645 vs->basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1647 vs->basename, 'd', vs->sequence) < 1) {
1649 av_freep(&filename);
1650 av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -strftime 1 with it\n", vs->basename);
1651 return AVERROR(EINVAL);
1653 ff_format_set_url(oc, filename);
1655 if ( vs->vtt_basename) {
1656 char *filename = NULL;
1657 if (replace_int_data_in_filename(&filename,
1659 vs->vtt_basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1661 vs->vtt_basename, 'd', vs->sequence) < 1) {
1663 av_freep(&filename);
1664 av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", vs->vtt_basename);
1665 return AVERROR(EINVAL);
1667 ff_format_set_url(vtt_oc, filename);
1672 proto = avio_find_protocol_name(oc->url);
1673 use_temp_file = proto && !strcmp(proto, "file") && (c->flags & HLS_TEMP_FILE);
1675 if (use_temp_file) {
1676 char *new_name = av_asprintf("%s.tmp", oc->url);
1678 return AVERROR(ENOMEM);
1679 ff_format_set_url(oc, new_name);
1682 if (c->key_info_file || c->encrypt) {
1683 if (c->segment_type == SEGMENT_TYPE_FMP4) {
1684 av_log(s, AV_LOG_ERROR, "Encrypted fmp4 not yet supported\n");
1685 return AVERROR_PATCHWELCOME;
1688 if (c->key_info_file && c->encrypt) {
1689 av_log(s, AV_LOG_WARNING, "Cannot use both -hls_key_info_file and -hls_enc,"
1690 " ignoring -hls_enc\n");
1693 if (!c->encrypt_started || (c->flags & HLS_PERIODIC_REKEY)) {
1694 if (c->key_info_file) {
1695 if ((err = hls_encryption_start(s)) < 0)
1698 if ((err = do_encrypt(s, vs)) < 0)
1701 c->encrypt_started = 1;
1703 err = av_strlcpy(iv_string, c->iv_string, sizeof(iv_string));
1705 snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, vs->sequence);
1706 memset(c->iv_string, 0, sizeof(c->iv_string));
1707 memcpy(c->iv_string, iv_string, sizeof(iv_string));
1710 if (c->segment_type != SEGMENT_TYPE_FMP4) {
1711 if (oc->oformat->priv_class && oc->priv_data) {
1712 av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
1714 if (c->flags & HLS_SINGLE_FILE) {
1715 set_http_options(s, &options, c);
1716 if ((err = hlsenc_io_open(s, &vs->out, oc->url, &options)) < 0) {
1717 if (c->ignore_io_errors)
1723 if (vs->vtt_basename) {
1724 set_http_options(s, &options, c);
1725 if ((err = hlsenc_io_open(s, &vtt_oc->pb, vtt_oc->url, &options)) < 0) {
1726 if (c->ignore_io_errors)
1731 av_dict_free(&options);
1733 if (vs->vtt_basename) {
1734 err = avformat_write_header(vtt_oc,NULL);
1741 av_dict_free(&options);
1746 static const char * get_default_pattern_localtime_fmt(AVFormatContext *s)
1749 time_t t = time(NULL);
1750 struct tm *p, tmbuf;
1751 HLSContext *hls = s->priv_data;
1753 p = localtime_r(&t, &tmbuf);
1754 // no %s support when strftime returned error or left format string unchanged
1755 // also no %s support on MSVC, which invokes the invalid parameter handler on unsupported format strings, instead of returning an error
1756 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1757 return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.m4s" : "-%s.m4s";
1759 return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts";
1762 static int append_postfix(char *name, int name_buf_len, int i)
1765 char extension[10] = {'\0'};
1767 p = strrchr(name, '.');
1769 av_strlcpy(extension, p, sizeof(extension));
1773 snprintf(name + strlen(name), name_buf_len - strlen(name), POSTFIX_PATTERN, i);
1775 if (strlen(extension))
1776 av_strlcat(name, extension, name_buf_len);
1781 static int validate_name(int nb_vs, const char *fn)
1783 const char *filename, *subdir_name;
1784 char *fn_dup = NULL;
1788 ret = AVERROR(EINVAL);
1792 fn_dup = av_strdup(fn);
1793 filename = av_basename(fn);
1794 subdir_name = av_dirname(fn_dup);
1796 if (nb_vs > 1 && !av_stristr(filename, "%v") && !av_stristr(subdir_name, "%v")) {
1797 av_log(NULL, AV_LOG_ERROR, "More than 1 variant streams are present, %%v is expected "
1798 "either in the filename or in the sub-directory name of file %s\n", fn);
1799 ret = AVERROR(EINVAL);
1803 if (av_stristr(filename, "%v") && av_stristr(subdir_name, "%v")) {
1804 av_log(NULL, AV_LOG_ERROR, "%%v is expected either in the filename or "
1805 "in the sub-directory name of file %s, but only in one of them\n", fn);
1806 ret = AVERROR(EINVAL);
1815 static int format_name(const char *buf, char **s, int index, const char *varname)
1817 const char *proto, *dir;
1818 char *orig_buf_dup = NULL, *mod_buf_dup = NULL;
1821 orig_buf_dup = av_strdup(buf);
1822 if (!orig_buf_dup) {
1823 ret = AVERROR(ENOMEM);
1827 if (!av_stristr(buf, "%v")) {
1833 if (replace_int_data_in_filename(s, orig_buf_dup, 'v', index) < 1) {
1834 ret = AVERROR(EINVAL);
1838 if (replace_str_data_in_filename(s, orig_buf_dup, 'v', varname) < 1) {
1839 ret = AVERROR(EINVAL);
1844 proto = avio_find_protocol_name(orig_buf_dup);
1845 dir = av_dirname(orig_buf_dup);
1847 /* if %v is present in the file's directory, create sub-directory */
1848 if (av_stristr(dir, "%v") && proto && !strcmp(proto, "file")) {
1849 mod_buf_dup = av_strdup(*s);
1850 dir = av_dirname(mod_buf_dup);
1851 if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
1852 ret = AVERROR(errno);
1858 av_freep(&orig_buf_dup);
1859 av_freep(&mod_buf_dup);
1863 static int get_nth_codec_stream_index(AVFormatContext *s,
1864 enum AVMediaType codec_type,
1867 unsigned int stream_index, cnt;
1868 if (stream_id < 0 || stream_id > s->nb_streams - 1)
1871 for (stream_index = 0; stream_index < s->nb_streams; stream_index++) {
1872 if (s->streams[stream_index]->codecpar->codec_type != codec_type)
1874 if (cnt == stream_id)
1875 return stream_index;
1881 static int parse_variant_stream_mapstring(AVFormatContext *s)
1883 HLSContext *hls = s->priv_data;
1885 int stream_index, i, j;
1886 enum AVMediaType codec_type;
1887 int nb_varstreams = 0, nb_streams;
1888 char *p, *q, *saveptr1, *saveptr2, *varstr, *keyval;
1892 * Expected format for var_stream_map string is as below:
1894 * "a:0,agroup:a0,default:1,language:ENG a:1,agroup:a1,default:0 v:0,agroup:a0 v:1,agroup:a1"
1895 * This string specifies how to group the audio, video and subtitle streams
1896 * into different variant streams. The variant stream groups are separated
1899 * a:, v:, s: are keys to specify audio, video and subtitle streams
1900 * respectively. Allowed values are 0 to 9 digits (limited just based on
1903 * agroup: is key to specify audio group. A string can be given as value.
1904 * sgroup: is key to specify subtitle group. A string can be given as value.
1906 p = av_strdup(hls->var_stream_map);
1908 return AVERROR(ENOMEM);
1911 while (av_strtok(q, " \t", &saveptr1)) {
1917 hls->var_streams = av_mallocz(sizeof(*hls->var_streams) * nb_varstreams);
1918 if (!hls->var_streams)
1919 return AVERROR(ENOMEM);
1920 hls->nb_varstreams = nb_varstreams;
1922 p = hls->var_stream_map;
1924 while (varstr = av_strtok(p, " \t", &saveptr1)) {
1927 if (nb_varstreams < hls->nb_varstreams) {
1928 vs = &(hls->var_streams[nb_varstreams]);
1929 vs->var_stream_idx = nb_varstreams;
1933 return AVERROR(EINVAL);
1936 while (q < varstr + strlen(varstr)) {
1937 if (!av_strncasecmp(q, "a:", 2) || !av_strncasecmp(q, "v:", 2) ||
1938 !av_strncasecmp(q, "s:", 2))
1942 vs->streams = av_mallocz(sizeof(AVStream *) * vs->nb_streams);
1944 return AVERROR(ENOMEM);
1947 while (keyval = av_strtok(varstr, ",", &saveptr2)) {
1949 if (av_strstart(keyval, "language:", &val)) {
1950 av_free(vs->language);
1951 vs->language = av_strdup(val);
1953 return AVERROR(ENOMEM);
1955 } else if (av_strstart(keyval, "default:", &val)) {
1956 vs->is_default = (!av_strncasecmp(val, "YES", strlen("YES")) ||
1957 (!av_strncasecmp(val, "1", strlen("1"))));
1958 hls->has_default_key = 1;
1960 } else if (av_strstart(keyval, "name:", &val)) {
1961 av_free(vs->varname);
1962 vs->varname = av_strdup(val);
1964 return AVERROR(ENOMEM);
1966 } else if (av_strstart(keyval, "agroup:", &val)) {
1967 av_free(vs->agroup);
1968 vs->agroup = av_strdup(val);
1970 return AVERROR(ENOMEM);
1972 } else if (av_strstart(keyval, "sgroup:", &val)) {
1973 av_free(vs->sgroup);
1974 vs->sgroup = av_strdup(val);
1976 return AVERROR(ENOMEM);
1978 } else if (av_strstart(keyval, "ccgroup:", &val)) {
1979 av_free(vs->ccgroup);
1980 vs->ccgroup = av_strdup(val);
1982 return AVERROR(ENOMEM);
1984 } else if (av_strstart(keyval, "v:", &val)) {
1985 codec_type = AVMEDIA_TYPE_VIDEO;
1986 hls->has_video_m3u8 = 1;
1987 } else if (av_strstart(keyval, "a:", &val)) {
1988 codec_type = AVMEDIA_TYPE_AUDIO;
1989 } else if (av_strstart(keyval, "s:", &val)) {
1990 codec_type = AVMEDIA_TYPE_SUBTITLE;
1992 av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
1993 return AVERROR(EINVAL);
1997 if (av_isdigit(*val))
1998 stream_index = get_nth_codec_stream_index (s, codec_type,
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)) {
2071 av_free(ccs->ccgroup);
2072 ccs->ccgroup = av_strdup(val);
2074 return AVERROR(ENOMEM);
2075 } else if (av_strstart(keyval, "instreamid:", &val)) {
2076 av_free(ccs->instreamid);
2077 ccs->instreamid = av_strdup(val);
2078 if (!ccs->instreamid)
2079 return AVERROR(ENOMEM);
2080 } else if (av_strstart(keyval, "language:", &val)) {
2081 av_free(ccs->language);
2082 ccs->language = av_strdup(val);
2084 return AVERROR(ENOMEM);
2086 av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
2087 return AVERROR(EINVAL);
2091 if (!ccs->ccgroup || !ccs->instreamid) {
2092 av_log(s, AV_LOG_ERROR, "Insufficient parameters in cc stream map string\n");
2093 return AVERROR(EINVAL);
2096 if (av_strstart(ccs->instreamid, "CC", &val)) {
2097 if (atoi(val) < 1 || atoi(val) > 4) {
2098 av_log(s, AV_LOG_ERROR, "Invalid instream ID CC index %d in %s, range 1-4\n",
2099 atoi(val), ccs->instreamid);
2100 return AVERROR(EINVAL);
2102 } else if (av_strstart(ccs->instreamid, "SERVICE", &val)) {
2103 if (atoi(val) < 1 || atoi(val) > 63) {
2104 av_log(s, AV_LOG_ERROR, "Invalid instream ID SERVICE index %d in %s, range 1-63 \n",
2105 atoi(val), ccs->instreamid);
2106 return AVERROR(EINVAL);
2109 av_log(s, AV_LOG_ERROR, "Invalid instream ID %s, supported are CCn or SERVICEn\n",
2111 return AVERROR(EINVAL);
2118 static int update_variant_stream_info(AVFormatContext *s)
2120 HLSContext *hls = s->priv_data;
2124 if (hls->cc_stream_map) {
2125 ret = parse_cc_stream_mapstring(s);
2130 if (hls->var_stream_map) {
2131 return parse_variant_stream_mapstring(s);
2133 //By default, a single variant stream with all the codec streams is created
2134 hls->var_streams = av_mallocz(sizeof(*hls->var_streams));
2135 if (!hls->var_streams)
2136 return AVERROR(ENOMEM);
2137 hls->nb_varstreams = 1;
2139 hls->var_streams[0].var_stream_idx = 0;
2140 hls->var_streams[0].nb_streams = s->nb_streams;
2141 hls->var_streams[0].streams = av_mallocz(sizeof(AVStream *) *
2142 hls->var_streams[0].nb_streams);
2143 if (!hls->var_streams[0].streams) {
2144 return AVERROR(ENOMEM);
2147 //by default, the first available ccgroup is mapped to the variant stream
2148 if (hls->nb_ccstreams) {
2149 hls->var_streams[0].ccgroup = av_strdup(hls->cc_streams[0].ccgroup);
2150 if (!hls->var_streams[0].ccgroup) {
2151 return AVERROR(ENOMEM);
2155 for (i = 0; i < s->nb_streams; i++)
2156 hls->var_streams[0].streams[i] = s->streams[i];
2161 static int update_master_pl_info(AVFormatContext *s)
2163 HLSContext *hls = s->priv_data;
2165 char *fn1= NULL, *fn2 = NULL;
2168 fn1 = av_strdup(s->url);
2169 dir = av_dirname(fn1);
2172 * if output file's directory has %v, variants are created in sub-directories
2173 * then master is created at the sub-directories level
2175 if (dir && av_stristr(av_basename(dir), "%v")) {
2176 fn2 = av_strdup(dir);
2177 dir = av_dirname(fn2);
2180 if (dir && strcmp(dir, "."))
2181 hls->master_m3u8_url = av_append_path_component(dir, hls->master_pl_name);
2183 hls->master_m3u8_url = av_strdup(hls->master_pl_name);
2185 if (!hls->master_m3u8_url) {
2186 ret = AVERROR(ENOMEM);
2197 static int hls_write_header(AVFormatContext *s)
2199 HLSContext *hls = s->priv_data;
2201 VariantStream *vs = NULL;
2203 for (i = 0; i < hls->nb_varstreams; i++) {
2204 vs = &hls->var_streams[i];
2206 ret = avformat_write_header(vs->avf, NULL);
2209 //av_assert0(s->nb_streams == hls->avf->nb_streams);
2210 for (j = 0; j < vs->nb_streams; j++) {
2212 AVStream *outer_st = vs->streams[j];
2214 if (hls->max_seg_size > 0) {
2215 if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
2216 (outer_st->codecpar->bit_rate > hls->max_seg_size)) {
2217 av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, "
2218 "(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.",
2219 outer_st->codecpar->bit_rate, hls->max_seg_size);
2223 if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
2224 inner_st = vs->avf->streams[j];
2225 else if (vs->vtt_avf)
2226 inner_st = vs->vtt_avf->streams[0];
2228 /* We have a subtitle stream, when the user does not want one */
2232 avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
2233 write_codec_attr(outer_st, vs);
2236 /* Update the Codec Attr string for the mapped audio groups */
2237 if (vs->has_video && vs->agroup) {
2238 for (j = 0; j < hls->nb_varstreams; j++) {
2239 VariantStream *vs_agroup = &(hls->var_streams[j]);
2240 if (!vs_agroup->has_video && !vs_agroup->has_subtitle &&
2241 vs_agroup->agroup &&
2242 !av_strcasecmp(vs_agroup->agroup, vs->agroup)) {
2243 write_codec_attr(vs_agroup->streams[0], vs);
2252 static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
2254 HLSContext *hls = s->priv_data;
2255 AVFormatContext *oc = NULL;
2256 AVStream *st = s->streams[pkt->stream_index];
2257 int64_t end_pts = 0;
2259 int ret = 0, can_split = 1, i, j;
2260 int stream_index = 0;
2261 int range_length = 0;
2262 const char *proto = NULL;
2263 int use_temp_file = 0;
2264 uint8_t *buffer = NULL;
2265 VariantStream *vs = NULL;
2266 char *old_filename = NULL;
2268 for (i = 0; i < hls->nb_varstreams; i++) {
2269 vs = &hls->var_streams[i];
2270 for (j = 0; j < vs->nb_streams; j++) {
2271 if (vs->streams[j] == st) {
2272 if ( st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE ) {
2288 av_log(s, AV_LOG_ERROR, "Unable to find mapping variant stream\n");
2289 return AVERROR(ENOMEM);
2292 end_pts = hls->recording_time * vs->number;
2294 if (vs->sequence - vs->nb_entries > hls->start_sequence && hls->init_time > 0) {
2295 /* reset end_pts, hls->recording_time at end of the init hls list */
2296 int64_t init_list_dur = hls->init_time * vs->nb_entries * AV_TIME_BASE;
2297 int64_t after_init_list_dur = (vs->sequence - hls->start_sequence - vs->nb_entries ) * (hls->time * AV_TIME_BASE);
2298 hls->recording_time = hls->time * AV_TIME_BASE;
2299 end_pts = init_list_dur + after_init_list_dur ;
2302 if (vs->start_pts == AV_NOPTS_VALUE) {
2303 vs->start_pts = pkt->pts;
2304 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
2305 vs->start_pts_from_audio = 1;
2307 if (vs->start_pts_from_audio && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && vs->start_pts > pkt->pts) {
2308 vs->start_pts = pkt->pts;
2309 vs->start_pts_from_audio = 0;
2312 if (vs->has_video) {
2313 can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
2314 ((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME));
2315 is_ref_pkt = (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->stream_index == vs->reference_stream_index);
2317 if (pkt->pts == AV_NOPTS_VALUE)
2318 is_ref_pkt = can_split = 0;
2321 if (vs->end_pts == AV_NOPTS_VALUE)
2322 vs->end_pts = pkt->pts;
2323 if (vs->new_start) {
2325 vs->duration = (double)(pkt->pts - vs->end_pts)
2326 * st->time_base.num / st->time_base.den;
2327 vs->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den;
2329 if (pkt->duration) {
2330 vs->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den;
2332 av_log(s, AV_LOG_WARNING, "pkt->duration = 0, maybe the hls segment duration will not precise\n");
2333 vs->duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den;
2339 if (vs->packets_written && can_split && av_compare_ts(pkt->pts - vs->start_pts, st->time_base,
2340 end_pts, AV_TIME_BASE_Q) >= 0) {
2341 int64_t new_start_pos;
2342 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
2344 av_write_frame(oc, NULL); /* Flush any buffered data */
2345 new_start_pos = avio_tell(oc->pb);
2346 vs->size = new_start_pos - vs->start_pos;
2348 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2349 if (!vs->init_range_length) {
2350 range_length = avio_close_dyn_buf(oc->pb, &buffer);
2351 avio_write(vs->out, buffer, range_length);
2353 vs->init_range_length = range_length;
2354 avio_open_dyn_buf(&oc->pb);
2355 vs->packets_written = 0;
2356 vs->start_pos = range_length;
2357 if (!byterange_mode) {
2358 hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
2362 if (!byterange_mode) {
2364 hlsenc_io_close(s, &vs->vtt_avf->pb, vs->vtt_avf->url);
2369 proto = avio_find_protocol_name(oc->url);
2370 use_temp_file = proto && !strcmp(proto, "file") && (hls->flags & HLS_TEMP_FILE);
2373 if (hls->flags & HLS_SINGLE_FILE) {
2374 ret = flush_dynbuf(vs, &range_length);
2375 av_freep(&vs->temp_buffer);
2379 vs->size = range_length;
2381 if ((hls->max_seg_size > 0 && (vs->size >= hls->max_seg_size)) || !byterange_mode) {
2382 AVDictionary *options = NULL;
2383 char *filename = NULL;
2384 if (hls->key_info_file || hls->encrypt) {
2385 av_dict_set(&options, "encryption_key", hls->key_string, 0);
2386 av_dict_set(&options, "encryption_iv", hls->iv_string, 0);
2387 filename = av_asprintf("crypto:%s", oc->url);
2389 filename = av_asprintf("%s", oc->url);
2392 av_dict_free(&options);
2393 return AVERROR(ENOMEM);
2396 // look to rename the asset name
2398 av_dict_set(&options, "mpegts_flags", "resend_headers", 0);
2400 set_http_options(s, &options, hls);
2402 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2404 av_log(s, hls->ignore_io_errors ? AV_LOG_WARNING : AV_LOG_ERROR,
2405 "Failed to open file '%s'\n", filename);
2406 av_dict_free(&options);
2407 return hls->ignore_io_errors ? 0 : ret;
2409 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2410 write_styp(vs->out);
2412 ret = flush_dynbuf(vs, &range_length);
2414 av_dict_free(&options);
2417 ret = hlsenc_io_close(s, &vs->out, filename);
2419 av_log(s, AV_LOG_WARNING, "upload segment failed,"
2420 " will retry with a new http session.\n");
2421 ff_format_io_close(s, &vs->out);
2422 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2423 reflush_dynbuf(vs, &range_length);
2424 ret = hlsenc_io_close(s, &vs->out, filename);
2426 av_dict_free(&options);
2427 av_freep(&vs->temp_buffer);
2428 av_freep(&filename);
2432 if (use_temp_file && !(hls->flags & HLS_SINGLE_FILE)) {
2433 hls_rename_temp_file(s, oc);
2436 old_filename = av_strdup(oc->url);
2437 if (!old_filename) {
2438 return AVERROR(ENOMEM);
2441 if (vs->start_pos || hls->segment_type != SEGMENT_TYPE_FMP4) {
2442 ret = hls_append_segment(s, hls, vs, vs->duration, vs->start_pos, vs->size);
2443 vs->end_pts = pkt->pts;
2446 av_freep(&old_filename);
2451 // if we're building a VOD playlist, skip writing the manifest multiple times, and just wait until the end
2452 if (hls->pl_type != PLAYLIST_TYPE_VOD) {
2453 if ((ret = hls_window(s, 0, vs)) < 0) {
2454 av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
2455 ff_format_io_close(s, &vs->out);
2457 if ((ret = hls_window(s, 0, vs)) < 0) {
2458 av_freep(&old_filename);
2464 if (hls->flags & HLS_SINGLE_FILE) {
2466 vs->start_pos += vs->size;
2467 } else if (hls->max_seg_size > 0) {
2468 vs->start_pos = new_start_pos;
2469 if (vs->size >= hls->max_seg_size) {
2471 sls_flag_file_rename(hls, vs, old_filename);
2472 ret = hls_start(s, vs);
2474 /* When split segment by byte, the duration is short than hls_time,
2475 * so it is not enough one segment duration as hls_time, */
2480 vs->start_pos = new_start_pos;
2481 sls_flag_file_rename(hls, vs, old_filename);
2482 ret = hls_start(s, vs);
2484 av_freep(&old_filename);
2492 vs->packets_written++;
2494 ret = ff_write_chained(oc, stream_index, pkt, s, 0);
2495 vs->video_keyframe_size += pkt->size;
2496 if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->flags & AV_PKT_FLAG_KEY)) {
2497 vs->video_keyframe_size = avio_tell(oc->pb);
2499 vs->video_keyframe_pos = avio_tell(vs->out);
2501 if (hls->ignore_io_errors)
2508 static void hls_free_variant_streams(struct HLSContext *hls)
2511 AVFormatContext *vtt_oc = NULL;
2512 VariantStream *vs = NULL;
2514 for (i = 0; i < hls->nb_varstreams; i++) {
2515 vs = &hls->var_streams[i];
2516 vtt_oc = vs->vtt_avf;
2518 av_freep(&vs->basename);
2519 av_freep(&vs->base_output_dirname);
2520 av_freep(&vs->fmp4_init_filename);
2522 av_freep(&vs->vtt_basename);
2523 av_freep(&vs->vtt_m3u8_name);
2524 avformat_free_context(vtt_oc);
2527 avformat_free_context(vs->avf);
2529 hls_free_segments(vs->segments);
2530 hls_free_segments(vs->old_segments);
2531 av_freep(&vs->m3u8_name);
2532 av_freep(&vs->streams);
2533 av_freep(&vs->agroup);
2534 av_freep(&vs->sgroup);
2535 av_freep(&vs->language);
2536 av_freep(&vs->ccgroup);
2537 av_freep(&vs->baseurl);
2538 av_freep(&vs->varname);
2542 static int hls_write_trailer(struct AVFormatContext *s)
2544 HLSContext *hls = s->priv_data;
2545 AVFormatContext *oc = NULL;
2546 AVFormatContext *vtt_oc = NULL;
2547 char *old_filename = NULL;
2548 const char *proto = NULL;
2549 int use_temp_file = 0;
2552 VariantStream *vs = NULL;
2553 AVDictionary *options = NULL;
2554 int range_length, byterange_mode;
2556 for (i = 0; i < hls->nb_varstreams; i++) {
2557 char *filename = NULL;
2558 vs = &hls->var_streams[i];
2560 vtt_oc = vs->vtt_avf;
2561 old_filename = av_strdup(oc->url);
2564 if (!old_filename) {
2565 return AVERROR(ENOMEM);
2567 if (hls->key_info_file || hls->encrypt) {
2568 av_dict_set(&options, "encryption_key", hls->key_string, 0);
2569 av_dict_set(&options, "encryption_iv", hls->iv_string, 0);
2570 filename = av_asprintf("crypto:%s", oc->url);
2572 filename = av_asprintf("%s", oc->url);
2575 av_freep(&old_filename);
2576 return AVERROR(ENOMEM);
2579 if ( hls->segment_type == SEGMENT_TYPE_FMP4) {
2580 int range_length = 0;
2581 if (!vs->init_range_length) {
2582 uint8_t *buffer = NULL;
2583 av_write_frame(oc, NULL); /* Flush any buffered data */
2585 range_length = avio_close_dyn_buf(oc->pb, &buffer);
2586 avio_write(vs->out, buffer, range_length);
2588 vs->init_range_length = range_length;
2589 avio_open_dyn_buf(&oc->pb);
2590 vs->packets_written = 0;
2591 vs->start_pos = range_length;
2592 byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
2593 if (!byterange_mode) {
2594 ff_format_io_close(s, &vs->out);
2595 hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
2599 if (!(hls->flags & HLS_SINGLE_FILE)) {
2600 set_http_options(s, &options, hls);
2601 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2603 av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
2606 if (hls->segment_type == SEGMENT_TYPE_FMP4)
2607 write_styp(vs->out);
2609 ret = flush_dynbuf(vs, &range_length);
2613 vs->size = range_length;
2614 hlsenc_io_close(s, &vs->out, filename);
2615 ret = hlsenc_io_close(s, &vs->out, filename);
2617 av_log(s, AV_LOG_WARNING, "upload segment failed, will retry with a new http session.\n");
2618 ff_format_io_close(s, &vs->out);
2619 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2621 av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
2624 reflush_dynbuf(vs, &range_length);
2625 ret = hlsenc_io_close(s, &vs->out, filename);
2627 av_log(s, AV_LOG_WARNING, "Failed to upload file '%s' at the end.\n", oc->url);
2629 av_freep(&vs->temp_buffer);
2632 av_freep(&filename);
2633 av_write_trailer(oc);
2635 proto = avio_find_protocol_name(oc->url);
2636 use_temp_file = proto && !strcmp(proto, "file") && (hls->flags & HLS_TEMP_FILE);
2639 // rename that segment from .tmp to the real one
2640 if (use_temp_file && !(hls->flags & HLS_SINGLE_FILE)) {
2641 hls_rename_temp_file(s, oc);
2642 av_freep(&old_filename);
2643 old_filename = av_strdup(oc->url);
2645 if (!old_filename) {
2646 return AVERROR(ENOMEM);
2650 /* after av_write_trailer, then duration + 1 duration per packet */
2651 hls_append_segment(s, hls, vs, vs->duration + vs->dpp, vs->start_pos, vs->size);
2653 sls_flag_file_rename(hls, vs, old_filename);
2657 av_write_trailer(vtt_oc);
2658 vs->size = avio_tell(vs->vtt_avf->pb) - vs->start_pos;
2659 ff_format_io_close(s, &vtt_oc->pb);
2661 ret = hls_window(s, 1, vs);
2663 av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
2664 ff_format_io_close(s, &vs->out);
2665 hls_window(s, 1, vs);
2667 ffio_free_dyn_buf(&oc->pb);
2669 av_free(old_filename);
2672 hls_free_variant_streams(hls);
2674 for (i = 0; i < hls->nb_ccstreams; i++) {
2675 ClosedCaptionsStream *ccs = &hls->cc_streams[i];
2676 av_freep(&ccs->ccgroup);
2677 av_freep(&ccs->instreamid);
2678 av_freep(&ccs->language);
2681 ff_format_io_close(s, &hls->m3u8_out);
2682 ff_format_io_close(s, &hls->sub_m3u8_out);
2683 av_freep(&hls->key_basename);
2684 av_freep(&hls->var_streams);
2685 av_freep(&hls->cc_streams);
2686 av_freep(&hls->master_m3u8_url);
2691 static int hls_init(AVFormatContext *s)
2696 HLSContext *hls = s->priv_data;
2697 const char *pattern = "%d.ts";
2698 VariantStream *vs = NULL;
2699 int basename_size = 0;
2700 const char *pattern_localtime_fmt = get_default_pattern_localtime_fmt(s);
2701 const char *vtt_pattern = "%d.vtt";
2703 int vtt_basename_size = 0;
2704 int http_base_proto = ff_is_http_proto(s->url);
2705 int fmp4_init_filename_len = strlen(hls->fmp4_init_filename) + 1;
2707 hls->has_default_key = 0;
2708 hls->has_video_m3u8 = 0;
2709 ret = update_variant_stream_info(s);
2711 av_log(s, AV_LOG_ERROR, "Variant stream info update failed with status %x\n",
2715 //TODO: Updates needed to encryption functionality with periodic re-key when more than one variant streams are present
2716 if (hls->nb_varstreams > 1 && hls->flags & HLS_PERIODIC_REKEY) {
2717 ret = AVERROR(EINVAL);
2718 av_log(s, AV_LOG_ERROR, "Periodic re-key not supported when more than one variant streams are present\n");
2722 if (!hls->method && http_base_proto) {
2723 av_log(hls, AV_LOG_WARNING, "No HTTP method set, hls muxer defaulting to method PUT.\n");
2726 ret = validate_name(hls->nb_varstreams, s->url);
2730 if (hls->segment_filename) {
2731 ret = validate_name(hls->nb_varstreams, hls->segment_filename);
2736 if (av_strcasecmp(hls->fmp4_init_filename, "init.mp4")) {
2737 ret = validate_name(hls->nb_varstreams, hls->fmp4_init_filename);
2742 if (hls->subtitle_filename) {
2743 ret = validate_name(hls->nb_varstreams, hls->subtitle_filename);
2748 if (hls->master_pl_name) {
2749 ret = update_master_pl_info(s);
2751 av_log(s, AV_LOG_ERROR, "Master stream info update failed with status %x\n",
2757 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2760 if ((hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) ||
2761 (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME)) {
2762 time_t t = time(NULL); // we will need it in either case
2763 if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) {
2764 hls->start_sequence = (int64_t)t;
2765 } else if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME) {
2767 struct tm *p, tmbuf;
2768 if (!(p = localtime_r(&t, &tmbuf)))
2769 return AVERROR(errno);
2770 if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p))
2771 return AVERROR(ENOMEM);
2772 hls->start_sequence = strtoll(b, NULL, 10);
2774 av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
2777 hls->recording_time = (hls->init_time ? hls->init_time : hls->time) * AV_TIME_BASE;
2778 for (i = 0; i < hls->nb_varstreams; i++) {
2779 vs = &hls->var_streams[i];
2781 ret = format_name(s->url, &vs->m3u8_name, i, vs->varname);
2785 vs->sequence = hls->start_sequence;
2786 vs->start_pts = AV_NOPTS_VALUE;
2787 vs->end_pts = AV_NOPTS_VALUE;
2788 vs->current_segment_final_filename_fmt[0] = '\0';
2790 if (hls->flags & HLS_SPLIT_BY_TIME && hls->flags & HLS_INDEPENDENT_SEGMENTS) {
2791 // Independent segments cannot be guaranteed when splitting by time
2792 hls->flags &= ~HLS_INDEPENDENT_SEGMENTS;
2793 av_log(s, AV_LOG_WARNING,
2794 "'split_by_time' and 'independent_segments' cannot be enabled together. "
2795 "Disabling 'independent_segments' flag\n");
2798 if (hls->flags & HLS_PROGRAM_DATE_TIME) {
2801 vs->initial_prog_date_time = now0;
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);
2823 ret = AVERROR_MUXER_NOT_FOUND;
2827 if (vs->has_subtitle) {
2828 vs->vtt_oformat = av_guess_format("webvtt", NULL, NULL);
2829 if (!vs->vtt_oformat) {
2830 ret = AVERROR_MUXER_NOT_FOUND;
2834 if (hls->segment_filename) {
2835 ret = format_name(hls->segment_filename, &vs->basename, i, vs->varname);
2839 if (hls->flags & HLS_SINGLE_FILE) {
2840 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2847 if (hls->use_localtime) {
2848 basename_size = strlen(vs->m3u8_name) + strlen(pattern_localtime_fmt) + 1;
2850 basename_size = strlen(vs->m3u8_name) + strlen(pattern) + 1;
2853 vs->basename = av_malloc(basename_size);
2854 if (!vs->basename) {
2855 ret = AVERROR(ENOMEM);
2859 av_strlcpy(vs->basename, vs->m3u8_name, basename_size);
2861 p = strrchr(vs->basename, '.');
2864 if (hls->use_localtime) {
2865 av_strlcat(vs->basename, pattern_localtime_fmt, basename_size);
2867 av_strlcat(vs->basename, pattern, basename_size);
2871 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2872 if (hls->nb_varstreams > 1)
2873 fmp4_init_filename_len += strlen(POSTFIX_PATTERN);
2874 if (hls->flags & HLS_SINGLE_FILE) {
2875 vs->fmp4_init_filename = av_strdup(vs->basename);
2876 if (!vs->fmp4_init_filename) {
2877 ret = AVERROR(ENOMEM);
2881 vs->fmp4_init_filename = av_malloc(fmp4_init_filename_len);
2882 if (!vs->fmp4_init_filename ) {
2883 ret = AVERROR(ENOMEM);
2886 av_strlcpy(vs->fmp4_init_filename, hls->fmp4_init_filename,
2887 fmp4_init_filename_len);
2888 if (hls->nb_varstreams > 1) {
2889 if (av_stristr(vs->fmp4_init_filename, "%v")) {
2890 av_freep(&vs->fmp4_init_filename);
2891 format_name(hls->fmp4_init_filename, &vs->fmp4_init_filename, i, vs->varname);
2893 ret = append_postfix(vs->fmp4_init_filename, fmp4_init_filename_len, i);
2899 fmp4_init_filename_len = strlen(vs->m3u8_name) +
2900 strlen(vs->fmp4_init_filename) + 1;
2902 vs->base_output_dirname = av_malloc(fmp4_init_filename_len);
2903 if (!vs->base_output_dirname) {
2904 ret = AVERROR(ENOMEM);
2908 av_strlcpy(vs->base_output_dirname, vs->m3u8_name,
2909 fmp4_init_filename_len);
2910 p = strrchr(vs->base_output_dirname, '/');
2913 av_strlcat(vs->base_output_dirname, vs->fmp4_init_filename,
2914 fmp4_init_filename_len);
2916 av_strlcpy(vs->base_output_dirname, vs->fmp4_init_filename,
2917 fmp4_init_filename_len);
2922 ret = hls->use_localtime ? sls_flag_check_duration_size(hls, vs) : sls_flag_check_duration_size_index(hls);
2926 if (vs->has_subtitle) {
2928 if (hls->flags & HLS_SINGLE_FILE)
2929 vtt_pattern = ".vtt";
2930 vtt_basename_size = strlen(vs->m3u8_name) + strlen(vtt_pattern) + 1;
2932 vs->vtt_basename = av_malloc(vtt_basename_size);
2933 if (!vs->vtt_basename) {
2934 ret = AVERROR(ENOMEM);
2937 av_strlcpy(vs->vtt_basename, vs->m3u8_name, vtt_basename_size);
2938 p = strrchr(vs->vtt_basename, '.');
2942 if ( hls->subtitle_filename ) {
2943 ret = format_name(hls->subtitle_filename, &vs->vtt_m3u8_name, i, vs->varname);
2947 vs->vtt_m3u8_name = av_asprintf("%s_vtt.m3u8", vs->vtt_basename);
2948 if (!vs->vtt_m3u8_name) {
2949 ret = AVERROR(ENOMEM);
2953 av_strlcat(vs->vtt_basename, vtt_pattern, vtt_basename_size);
2957 vs->baseurl = av_strdup(hls->baseurl);
2959 ret = AVERROR(ENOMEM);
2964 if ((ret = hls_mux_init(s, vs)) < 0)
2967 if (hls->flags & HLS_APPEND_LIST) {
2968 parse_playlist(s, vs->m3u8_name, vs);
2969 vs->discontinuity = 1;
2970 if (hls->init_time > 0) {
2971 av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
2972 " hls_init_time value will have no effect\n");
2974 hls->recording_time = hls->time * AV_TIME_BASE;
2978 if ((ret = hls_start(s, vs)) < 0)
2984 hls_free_variant_streams(hls);
2985 for (i = 0; i < hls->nb_ccstreams; i++) {
2986 ClosedCaptionsStream *ccs = &hls->cc_streams[i];
2987 av_freep(&ccs->ccgroup);
2988 av_freep(&ccs->instreamid);
2989 av_freep(&ccs->language);
2991 av_freep(&hls->key_basename);
2992 av_freep(&hls->var_streams);
2993 av_freep(&hls->cc_streams);
2994 av_freep(&hls->master_m3u8_url);
3000 #define OFFSET(x) offsetof(HLSContext, x)
3001 #define E AV_OPT_FLAG_ENCODING_PARAM
3002 static const AVOption options[] = {
3003 {"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
3004 {"hls_time", "set segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
3005 {"hls_init_time", "set segment length in seconds at init list", OFFSET(init_time), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0, FLT_MAX, E},
3006 {"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
3007 {"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},
3008 {"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},
3009 {"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},
3011 {"hls_wrap", "set number after which the index wraps (will be deprecated)", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
3013 {"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},
3014 {"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3015 {"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3016 {"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
3017 {"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},
3018 {"hls_enc", "enable AES128 encryption support", OFFSET(encrypt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E},
3019 {"hls_enc_key", "hex-coded 16 byte key to encrypt the segments", OFFSET(key), AV_OPT_TYPE_STRING, .flags = E},
3020 {"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},
3021 {"hls_enc_iv", "hex-coded 16 byte initialization vector", OFFSET(iv), AV_OPT_TYPE_STRING, .flags = E},
3022 {"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3023 {"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"},
3024 {"mpegts", "make segment file to mpegts files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, UINT_MAX, E, "segment_type"},
3025 {"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"},
3026 {"hls_fmp4_init_filename", "set fragment mp4 file init filename", OFFSET(fmp4_init_filename), AV_OPT_TYPE_STRING, {.str = "init.mp4"}, 0, 0, E},
3027 {"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
3028 {"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"},
3029 {"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"},
3030 {"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"},
3031 {"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, "flags"},
3032 {"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, "flags"},
3033 {"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, "flags"},
3034 {"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"},
3035 {"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"},
3036 {"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
3037 {"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"},
3038 {"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"},
3039 {"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"},
3040 {"periodic_rekey", "reload keyinfo file periodically for re-keying", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PERIODIC_REKEY }, 0, UINT_MAX, E, "flags"},
3041 {"independent_segments", "add EXT-X-INDEPENDENT-SEGMENTS, whenever applicable", 0, AV_OPT_TYPE_CONST, { .i64 = HLS_INDEPENDENT_SEGMENTS }, 0, UINT_MAX, E, "flags"},
3042 {"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"},
3043 #if FF_API_HLS_USE_LOCALTIME
3044 {"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 },
3046 {"strftime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
3047 #if FF_API_HLS_USE_LOCALTIME
3048 {"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 },
3050 {"strftime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
3051 {"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" },
3052 {"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, "pl_type" },
3053 {"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, "pl_type" },
3054 {"method", "set the HTTP method(default: PUT)", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3055 {"hls_start_number_source", "set source of first number in sequence", OFFSET(start_sequence_source_type), AV_OPT_TYPE_INT, {.i64 = HLS_START_SEQUENCE_AS_START_NUMBER }, 0, HLS_START_SEQUENCE_AS_FORMATTED_DATETIME, E, "start_sequence_source_type" },
3056 {"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" },
3057 {"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" },
3058 {"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" },
3059 {"http_user_agent", "override User-Agent field in HTTP header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3060 {"var_stream_map", "Variant stream map string", OFFSET(var_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3061 {"cc_stream_map", "Closed captions stream map string", OFFSET(cc_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3062 {"master_pl_name", "Create HLS master playlist with this name", OFFSET(master_pl_name), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3063 {"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},
3064 {"http_persistent", "Use persistent HTTP connections", OFFSET(http_persistent), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
3065 {"timeout", "set timeout for socket I/O operations", OFFSET(timeout), AV_OPT_TYPE_DURATION, { .i64 = -1 }, -1, INT_MAX, .flags = E },
3066 {"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 },
3067 {"headers", "set custom HTTP headers, can override built in default headers", OFFSET(headers), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
3071 static const AVClass hls_class = {
3072 .class_name = "hls muxer",
3073 .item_name = av_default_item_name,
3075 .version = LIBAVUTIL_VERSION_INT,
3079 AVOutputFormat ff_hls_muxer = {
3081 .long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
3082 .extensions = "m3u8",
3083 .priv_data_size = sizeof(HLSContext),
3084 .audio_codec = AV_CODEC_ID_AAC,
3085 .video_codec = AV_CODEC_ID_H264,
3086 .subtitle_codec = AV_CODEC_ID_WEBVTT,
3087 .flags = AVFMT_NOFILE | AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_NODIMENSIONS,
3089 .write_header = hls_write_header,
3090 .write_packet = hls_write_packet,
3091 .write_trailer = hls_write_trailer,
3092 .priv_class = &hls_class,