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 1024
68 #define HLS_MICROSECOND_UNIT 1000000
69 #define POSTFIX_PATTERN "_%d"
71 typedef struct HLSSegment {
73 char sub_filename[1024];
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;
122 AVFormatContext *avf;
123 AVFormatContext *vtt_avf;
128 double dpp; // duration per packet
131 int64_t video_lastpos;
132 int64_t video_keyframe_pos;
133 int64_t video_keyframe_size;
134 double duration; // last segment duration computed so far, in seconds
135 int64_t start_pos; // last segment starting position
136 int64_t size; // last segment size
138 int discontinuity_set;
140 int reference_stream_index;
142 HLSSegment *segments;
143 HLSSegment *last_segment;
144 HLSSegment *old_segments;
151 double initial_prog_date_time;
152 char current_segment_final_filename_fmt[1024]; // when renaming segments
154 char *fmp4_init_filename;
155 char *base_output_dirname;
158 char codec_attr[128];
159 CodecAttributeStatus attr_status;
160 unsigned int nb_streams;
161 int m3u8_created; /* status of media play-list creation */
162 int is_default; /* default status of audio group */
163 char *language; /* audio lauguage name */
164 char *agroup; /* audio group name */
165 char *ccgroup; /* closed caption group name */
169 typedef struct ClosedCaptionsStream {
170 char *ccgroup; /* closed caption group name */
171 char *instreamid; /* closed captions INSTREAM-ID */
172 char *language; /* closed captions langauge */
173 } ClosedCaptionsStream;
175 typedef struct HLSContext {
176 const AVClass *class; // Class for private options.
177 int64_t start_sequence;
178 uint32_t start_sequence_source_type; // enum StartSequenceSourceType
180 float time; // Set by a private option.
181 float init_time; // Set by a private option.
182 int max_nb_segments; // Set by a private option.
183 int hls_delete_threshold; // Set by a private option.
185 int wrap; // Set by a private option.
187 uint32_t flags; // enum HLSFlags
188 uint32_t pl_type; // enum PlaylistType
189 char *segment_filename;
190 char *fmp4_init_filename;
193 int use_localtime; ///< flag to expand filename with localtime
194 int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
196 int64_t recording_time;
197 int64_t max_seg_size; // every segment file max size
200 char *format_options_str;
201 char *vtt_format_options_str;
202 char *subtitle_filename;
203 AVDictionary *format_options;
213 char key_file[LINE_BUFFER_SIZE + 1];
214 char key_uri[LINE_BUFFER_SIZE + 1];
215 char key_string[KEYSIZE*2 + 1];
216 char iv_string[KEYSIZE*2 + 1];
217 AVDictionary *vtt_format_options;
222 VariantStream *var_streams;
223 unsigned int nb_varstreams;
224 ClosedCaptionsStream *cc_streams;
225 unsigned int nb_ccstreams;
227 int master_m3u8_created; /* status of master play-list creation */
228 char *master_m3u8_url; /* URL of the master m3u8 file */
229 int version; /* HLS version */
230 char *var_stream_map; /* user specified variant stream map string */
231 char *cc_stream_map; /* user specified closed caption streams map string */
232 char *master_pl_name;
233 unsigned int master_publish_rate;
235 AVIOContext *m3u8_out;
236 AVIOContext *sub_m3u8_out;
238 int ignore_io_errors;
239 int has_default_key; /* has DEFAULT field of var_stream_map */
240 int has_video_m3u8; /* has video stream m3u8 list */
243 static int hlsenc_io_open(AVFormatContext *s, AVIOContext **pb, char *filename,
244 AVDictionary **options) {
245 HLSContext *hls = s->priv_data;
246 int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
247 int err = AVERROR_MUXER_NOT_FOUND;
248 if (!*pb || !http_base_proto || !hls->http_persistent) {
249 err = s->io_open(s, pb, filename, AVIO_FLAG_WRITE, options);
250 #if CONFIG_HTTP_PROTOCOL
252 URLContext *http_url_context = ffio_geturlcontext(*pb);
253 av_assert0(http_url_context);
254 err = ff_http_do_new_request(http_url_context, filename);
256 ff_format_io_close(s, pb);
263 static void hlsenc_io_close(AVFormatContext *s, AVIOContext **pb, char *filename) {
264 HLSContext *hls = s->priv_data;
265 int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
268 if (!http_base_proto || !hls->http_persistent || hls->key_info_file || hls->encrypt) {
269 ff_format_io_close(s, pb);
270 #if CONFIG_HTTP_PROTOCOL
272 URLContext *http_url_context = ffio_geturlcontext(*pb);
273 av_assert0(http_url_context);
275 ffurl_shutdown(http_url_context, AVIO_FLAG_WRITE);
280 static void set_http_options(AVFormatContext *s, AVDictionary **options, HLSContext *c)
282 int http_base_proto = ff_is_http_proto(s->url);
285 av_dict_set(options, "method", c->method, 0);
286 } else if (http_base_proto) {
287 av_log(c, AV_LOG_WARNING, "No HTTP method set, hls muxer defaulting to method PUT.\n");
288 av_dict_set(options, "method", "PUT", 0);
291 av_dict_set(options, "user_agent", c->user_agent, 0);
292 if (c->http_persistent)
293 av_dict_set_int(options, "multiple_requests", 1, 0);
295 av_dict_set_int(options, "timeout", c->timeout, 0);
298 static void write_codec_attr(AVStream *st, VariantStream *vs) {
299 int codec_strlen = strlen(vs->codec_attr);
302 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
304 if (vs->attr_status == CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN)
307 if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
308 uint8_t *data = st->codecpar->extradata;
309 if (data && (data[0] | data[1] | data[2]) == 0 && data[3] == 1 && (data[4] & 0x1F) == 7) {
310 snprintf(attr, sizeof(attr),
311 "avc1.%02x%02x%02x", data[5], data[6], data[7]);
315 } else if (st->codecpar->codec_id == AV_CODEC_ID_MP2) {
316 snprintf(attr, sizeof(attr), "mp4a.40.33");
317 } else if (st->codecpar->codec_id == AV_CODEC_ID_MP3) {
318 snprintf(attr, sizeof(attr), "mp4a.40.34");
319 } else if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
320 /* TODO : For HE-AAC, HE-AACv2, the last digit needs to be set to 5 and 29 respectively */
321 snprintf(attr, sizeof(attr), "mp4a.40.2");
322 } else if (st->codecpar->codec_id == AV_CODEC_ID_AC3) {
323 snprintf(attr, sizeof(attr), "ac-3");
324 } else if (st->codecpar->codec_id == AV_CODEC_ID_EAC3) {
325 snprintf(attr, sizeof(attr), "ec-3");
329 // Don't write the same attribute multiple times
330 if (!av_stristr(vs->codec_attr, attr)) {
331 snprintf(vs->codec_attr + codec_strlen,
332 sizeof(vs->codec_attr) - codec_strlen,
333 "%s%s", codec_strlen ? "," : "", attr);
338 vs->codec_attr[0] = '\0';
339 vs->attr_status = CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN;
343 static int replace_int_data_in_filename(char **s, const char *filename, char placeholder, int64_t number)
348 int nd, addchar_count;
352 av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
359 if (c == '%' && *(p+1) == '%') // %%
361 else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) {
364 while (av_isdigit(*(p + addchar_count))) {
365 nd = nd * 10 + *(p + addchar_count) - '0';
369 if (*(p + addchar_count) == placeholder) {
370 av_bprintf(&buf, "%0*"PRId64, (number < 0) ? nd : nd++, number);
371 p += (addchar_count + 1);
379 av_bprint_append_data(&buf, p, addchar_count);
382 if (!av_bprint_is_complete(&buf)) {
383 av_bprint_finalize(&buf, NULL);
386 if (av_bprint_finalize(&buf, &new_filename) < 0 || !new_filename)
392 static void write_styp(AVIOContext *pb)
395 ffio_wfourcc(pb, "styp");
396 ffio_wfourcc(pb, "msdh");
397 avio_wb32(pb, 0); /* minor */
398 ffio_wfourcc(pb, "msdh");
399 ffio_wfourcc(pb, "msix");
402 static int flush_dynbuf(VariantStream *vs, int *range_length)
404 AVFormatContext *ctx = vs->avf;
408 return AVERROR(EINVAL);
412 av_write_frame(ctx, NULL);
416 *range_length = avio_close_dyn_buf(ctx->pb, &buffer);
418 avio_write(vs->out, buffer, *range_length);
422 return avio_open_dyn_buf(&ctx->pb);
425 static int hls_delete_old_segments(AVFormatContext *s, HLSContext *hls,
428 HLSSegment *segment, *previous_segment = NULL;
429 float playlist_duration = 0.0f;
430 int ret = 0, path_size, sub_path_size;
432 char *dirname = NULL, *p, *sub_path;
434 char *vtt_dirname = NULL;
435 AVDictionary *options = NULL;
436 AVIOContext *out = NULL;
437 const char *proto = NULL;
439 segment = vs->segments;
441 playlist_duration += segment->duration;
442 segment = segment->next;
445 segment = vs->old_segments;
448 playlist_duration -= segment->duration;
449 previous_segment = segment;
450 segment = previous_segment->next;
452 if (playlist_duration <= -previous_segment->duration) {
453 previous_segment->next = NULL;
456 if (segment_cnt >= hls->hls_delete_threshold) {
457 previous_segment->next = NULL;
462 if (segment && !hls->use_localtime_mkdir) {
463 if (hls->segment_filename) {
464 dirname = av_strdup(hls->segment_filename);
466 dirname = av_strdup(vs->avf->url);
469 ret = AVERROR(ENOMEM);
472 p = (char *)av_basename(dirname);
478 char * r_dirname = dirname;
480 /* if %v is present in the file's directory */
481 if (dirname && av_stristr(dirname, "%v")) {
483 if (replace_int_data_in_filename(&r_dirname, dirname, 'v', segment->var_stream_idx) < 1) {
484 ret = AVERROR(EINVAL);
491 av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n",
493 path_size = (hls->use_localtime_mkdir ? 0 : strlen(dirname)) + strlen(segment->filename) + 1;
494 path = av_malloc(path_size);
496 ret = AVERROR(ENOMEM);
500 if (hls->use_localtime_mkdir)
501 av_strlcpy(path, segment->filename, path_size);
502 else { // segment->filename contains basename only
503 av_strlcpy(path, dirname, path_size);
504 av_strlcat(path, segment->filename, path_size);
507 proto = avio_find_protocol_name(s->url);
508 if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
509 av_dict_set(&options, "method", "DELETE", 0);
510 if ((ret = vs->avf->io_open(vs->avf, &out, path, AVIO_FLAG_WRITE, &options)) < 0) {
511 if (hls->ignore_io_errors)
515 ff_format_io_close(vs->avf, &out);
516 } else if (unlink(path) < 0) {
517 av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
518 path, strerror(errno));
521 if ((segment->sub_filename[0] != '\0')) {
522 vtt_dirname = av_strdup(vs->vtt_avf->url);
524 ret = AVERROR(ENOMEM);
527 p = (char *)av_basename(vtt_dirname);
529 sub_path_size = strlen(segment->sub_filename) + 1 + strlen(vtt_dirname);
530 sub_path = av_malloc(sub_path_size);
532 ret = AVERROR(ENOMEM);
536 av_strlcpy(sub_path, vtt_dirname, sub_path_size);
537 av_strlcat(sub_path, segment->sub_filename, sub_path_size);
539 if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
540 av_dict_set(&options, "method", "DELETE", 0);
541 if ((ret = vs->vtt_avf->io_open(vs->vtt_avf, &out, sub_path, AVIO_FLAG_WRITE, &options)) < 0) {
542 if (hls->ignore_io_errors)
547 ff_format_io_close(vs->vtt_avf, &out);
548 } else if (unlink(sub_path) < 0) {
549 av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
550 sub_path, strerror(errno));
555 previous_segment = segment;
556 segment = previous_segment->next;
557 av_free(previous_segment);
563 av_free(vtt_dirname);
568 static int randomize(uint8_t *buf, int len)
571 gcry_randomize(buf, len, GCRY_VERY_STRONG_RANDOM);
574 if (RAND_bytes(buf, len))
577 return AVERROR(ENOSYS);
579 return AVERROR(EINVAL);
582 static int do_encrypt(AVFormatContext *s, VariantStream *vs)
584 HLSContext *hls = s->priv_data;
588 uint8_t key[KEYSIZE];
590 len = strlen(s->url) + 4 + 1;
591 hls->key_basename = av_mallocz(len);
592 if (!hls->key_basename)
593 return AVERROR(ENOMEM);
595 av_strlcpy(hls->key_basename, s->url, len);
596 av_strlcat(hls->key_basename, ".key", len);
599 av_strlcpy(hls->key_file, hls->key_url, sizeof(hls->key_file));
600 av_strlcpy(hls->key_uri, hls->key_url, sizeof(hls->key_uri));
602 av_strlcpy(hls->key_file, hls->key_basename, sizeof(hls->key_file));
603 av_strlcpy(hls->key_uri, hls->key_basename, sizeof(hls->key_uri));
606 if (!*hls->iv_string) {
607 uint8_t iv[16] = { 0 };
611 AV_WB64(iv + 8, vs->sequence);
613 memcpy(iv, hls->iv, sizeof(iv));
615 ff_data_to_hex(buf, iv, sizeof(iv), 0);
617 memcpy(hls->iv_string, buf, sizeof(hls->iv_string));
620 if (!*hls->key_uri) {
621 av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
622 return AVERROR(EINVAL);
625 if (!*hls->key_file) {
626 av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
627 return AVERROR(EINVAL);
630 if (!*hls->key_string) {
632 if ((ret = randomize(key, sizeof(key))) < 0) {
633 av_log(s, AV_LOG_ERROR, "Cannot generate a strong random key\n");
637 memcpy(key, hls->key, sizeof(key));
640 ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
641 if ((ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_WRITE, NULL)) < 0)
643 avio_seek(pb, 0, SEEK_CUR);
644 avio_write(pb, key, KEYSIZE);
651 static int hls_encryption_start(AVFormatContext *s)
653 HLSContext *hls = s->priv_data;
656 uint8_t key[KEYSIZE];
658 if ((ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, NULL)) < 0) {
659 av_log(hls, AV_LOG_ERROR,
660 "error opening key info file %s\n", hls->key_info_file);
664 ff_get_line(pb, hls->key_uri, sizeof(hls->key_uri));
665 hls->key_uri[strcspn(hls->key_uri, "\r\n")] = '\0';
667 ff_get_line(pb, hls->key_file, sizeof(hls->key_file));
668 hls->key_file[strcspn(hls->key_file, "\r\n")] = '\0';
670 ff_get_line(pb, hls->iv_string, sizeof(hls->iv_string));
671 hls->iv_string[strcspn(hls->iv_string, "\r\n")] = '\0';
673 ff_format_io_close(s, &pb);
675 if (!*hls->key_uri) {
676 av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
677 return AVERROR(EINVAL);
680 if (!*hls->key_file) {
681 av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
682 return AVERROR(EINVAL);
685 if ((ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_READ, NULL)) < 0) {
686 av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", hls->key_file);
690 ret = avio_read(pb, key, sizeof(key));
691 ff_format_io_close(s, &pb);
692 if (ret != sizeof(key)) {
693 av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", hls->key_file);
694 if (ret >= 0 || ret == AVERROR_EOF)
695 ret = AVERROR(EINVAL);
698 ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
703 static int hls_mux_init(AVFormatContext *s, VariantStream *vs)
705 AVDictionary *options = NULL;
706 HLSContext *hls = s->priv_data;
708 AVFormatContext *vtt_oc = NULL;
709 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
712 ret = avformat_alloc_output_context2(&vs->avf, vs->oformat, NULL, NULL);
717 oc->url = av_strdup("");
719 return AVERROR(ENOMEM);
721 oc->oformat = vs->oformat;
722 oc->interrupt_callback = s->interrupt_callback;
723 oc->max_delay = s->max_delay;
724 oc->opaque = s->opaque;
725 oc->io_open = s->io_open;
726 oc->io_close = s->io_close;
727 av_dict_copy(&oc->metadata, s->metadata, 0);
729 if(vs->vtt_oformat) {
730 ret = avformat_alloc_output_context2(&vs->vtt_avf, vs->vtt_oformat, NULL, NULL);
733 vtt_oc = vs->vtt_avf;
734 vtt_oc->oformat = vs->vtt_oformat;
735 av_dict_copy(&vtt_oc->metadata, s->metadata, 0);
738 for (i = 0; i < vs->nb_streams; i++) {
740 AVFormatContext *loc;
741 if (vs->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
746 if (!(st = avformat_new_stream(loc, NULL)))
747 return AVERROR(ENOMEM);
748 avcodec_parameters_copy(st->codecpar, vs->streams[i]->codecpar);
749 if (!oc->oformat->codec_tag ||
750 av_codec_get_id (oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_tag) == st->codecpar->codec_id ||
751 av_codec_get_tag(oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_id) <= 0) {
752 st->codecpar->codec_tag = vs->streams[i]->codecpar->codec_tag;
754 st->codecpar->codec_tag = 0;
757 st->sample_aspect_ratio = vs->streams[i]->sample_aspect_ratio;
758 st->time_base = vs->streams[i]->time_base;
759 av_dict_copy(&st->metadata, vs->streams[i]->metadata, 0);
762 vs->packets_written = 1;
766 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
767 if (hls->max_seg_size > 0) {
768 av_log(s, AV_LOG_WARNING, "Multi-file byterange mode is currently unsupported in the HLS muxer.\n");
769 return AVERROR_PATCHWELCOME;
772 vs->packets_written = 0;
773 vs->init_range_length = 0;
774 set_http_options(s, &options, hls);
775 if ((ret = avio_open_dyn_buf(&oc->pb)) < 0)
778 if (byterange_mode) {
779 ret = hlsenc_io_open(s, &vs->out, vs->basename, &options);
781 ret = hlsenc_io_open(s, &vs->out, vs->base_output_dirname, &options);
783 av_dict_free(&options);
785 av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", vs->fmp4_init_filename);
789 if (hls->format_options_str) {
790 ret = av_dict_parse_string(&hls->format_options, hls->format_options_str, "=", ":", 0);
792 av_log(s, AV_LOG_ERROR, "Could not parse format options list '%s'\n",
793 hls->format_options_str);
798 av_dict_copy(&options, hls->format_options, 0);
799 av_dict_set(&options, "fflags", "-autobsf", 0);
800 av_dict_set(&options, "movflags", "+frag_custom+dash+delay_moov", AV_DICT_APPEND);
801 ret = avformat_init_output(oc, &options);
804 if (av_dict_count(options)) {
805 av_log(s, AV_LOG_ERROR, "Some of the provided format options in '%s' are not recognized\n", hls->format_options_str);
806 av_dict_free(&options);
807 return AVERROR(EINVAL);
810 av_dict_free(&options);
815 static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename)
818 if (!av_strcasecmp(segment->filename,filename))
820 segment = segment->next;
822 return (HLSSegment *) NULL;
825 static int sls_flags_filename_process(struct AVFormatContext *s, HLSContext *hls,
826 VariantStream *vs, HLSSegment *en,
827 double duration, int64_t pos, int64_t size)
829 if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
830 strlen(vs->current_segment_final_filename_fmt)) {
831 char * new_url = av_strdup(vs->current_segment_final_filename_fmt);
834 return AVERROR(ENOMEM);
836 ff_format_set_url(vs->avf, new_url);
837 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
838 char *filename = NULL;
839 if (replace_int_data_in_filename(&filename, vs->avf->url, 's', pos + size) < 1) {
840 av_log(hls, AV_LOG_ERROR,
841 "Invalid second level segment filename template '%s', "
842 "you can try to remove second_level_segment_size flag\n",
846 return AVERROR(EINVAL);
848 ff_format_set_url(vs->avf, filename);
850 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
851 char *filename = NULL;
852 if (replace_int_data_in_filename(&filename, vs->avf->url,
853 't', (int64_t)round(duration * HLS_MICROSECOND_UNIT)) < 1) {
854 av_log(hls, AV_LOG_ERROR,
855 "Invalid second level segment filename template '%s', "
856 "you can try to remove second_level_segment_time flag\n",
860 return AVERROR(EINVAL);
862 ff_format_set_url(vs->avf, filename);
868 static int sls_flag_check_duration_size_index(HLSContext *hls)
872 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
873 av_log(hls, AV_LOG_ERROR,
874 "second_level_segment_duration hls_flag requires strftime to be true\n");
875 ret = AVERROR(EINVAL);
877 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
878 av_log(hls, AV_LOG_ERROR,
879 "second_level_segment_size hls_flag requires strfime to be true\n");
880 ret = AVERROR(EINVAL);
882 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
883 av_log(hls, AV_LOG_ERROR,
884 "second_level_segment_index hls_flag requires strftime to be true\n");
885 ret = AVERROR(EINVAL);
891 static int sls_flag_check_duration_size(HLSContext *hls, VariantStream *vs)
893 const char *proto = avio_find_protocol_name(vs->basename);
894 int segment_renaming_ok = proto && !strcmp(proto, "file");
897 if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) {
898 av_log(hls, AV_LOG_ERROR,
899 "second_level_segment_duration hls_flag works only with file protocol segment names\n");
900 ret = AVERROR(EINVAL);
902 if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) {
903 av_log(hls, AV_LOG_ERROR,
904 "second_level_segment_size hls_flag works only with file protocol segment names\n");
905 ret = AVERROR(EINVAL);
911 static void sls_flag_file_rename(HLSContext *hls, VariantStream *vs, char *old_filename) {
912 if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
913 strlen(vs->current_segment_final_filename_fmt)) {
914 ff_rename(old_filename, vs->avf->url, hls);
918 static int sls_flag_use_localtime_filename(AVFormatContext *oc, HLSContext *c, VariantStream *vs)
920 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
921 char *filename = NULL;
922 if (replace_int_data_in_filename(&filename,
924 oc->url, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
926 oc->url, 'd', vs->sequence) < 1) {
928 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
929 "you can try to remove second_level_segment_index flag\n",
932 return AVERROR(EINVAL);
934 ff_format_set_url(oc, filename);
936 if (c->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) {
937 av_strlcpy(vs->current_segment_final_filename_fmt, oc->url,
938 sizeof(vs->current_segment_final_filename_fmt));
939 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
940 char *filename = NULL;
941 if (replace_int_data_in_filename(&filename, oc->url, 's', 0) < 1) {
942 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
943 "you can try to remove second_level_segment_size flag\n",
946 return AVERROR(EINVAL);
948 ff_format_set_url(oc, filename);
950 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
951 char *filename = NULL;
952 if (replace_int_data_in_filename(&filename, oc->url, 't', 0) < 1) {
953 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
954 "you can try to remove second_level_segment_time flag\n",
957 return AVERROR(EINVAL);
959 ff_format_set_url(oc, filename);
965 /* Create a new segment and append it to the segment list */
966 static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls,
967 VariantStream *vs, double duration, int64_t pos,
970 HLSSegment *en = av_malloc(sizeof(*en));
971 const char *filename;
972 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
976 return AVERROR(ENOMEM);
978 en->var_stream_idx = vs->var_stream_idx;
979 ret = sls_flags_filename_process(s, hls, vs, en, duration, pos, size);
984 filename = av_basename(vs->avf->url);
986 if (hls->use_localtime_mkdir) {
987 filename = vs->avf->url;
989 if ((find_segment_by_filename(vs->segments, filename) || find_segment_by_filename(vs->old_segments, filename))
990 && !byterange_mode) {
991 av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename);
993 av_strlcpy(en->filename, filename, sizeof(en->filename));
996 av_strlcpy(en->sub_filename, av_basename(vs->vtt_avf->url), sizeof(en->sub_filename));
998 en->sub_filename[0] = '\0';
1000 en->duration = duration;
1003 en->keyframe_pos = vs->video_keyframe_pos;
1004 en->keyframe_size = vs->video_keyframe_size;
1008 if (vs->discontinuity) {
1010 vs->discontinuity = 0;
1013 if (hls->key_info_file || hls->encrypt) {
1014 av_strlcpy(en->key_uri, hls->key_uri, sizeof(en->key_uri));
1015 av_strlcpy(en->iv_string, hls->iv_string, sizeof(en->iv_string));
1021 vs->last_segment->next = en;
1023 vs->last_segment = en;
1025 // EVENT or VOD playlists imply sliding window cannot be used
1026 if (hls->pl_type != PLAYLIST_TYPE_NONE)
1027 hls->max_nb_segments = 0;
1029 if (hls->max_nb_segments && vs->nb_entries >= hls->max_nb_segments) {
1031 vs->initial_prog_date_time += en->duration;
1032 vs->segments = en->next;
1033 if (en && hls->flags & HLS_DELETE_SEGMENTS &&
1035 !(hls->flags & HLS_SINGLE_FILE || hls->wrap)) {
1037 !(hls->flags & HLS_SINGLE_FILE)) {
1039 en->next = vs->old_segments;
1040 vs->old_segments = en;
1041 if ((ret = hls_delete_old_segments(s, hls, vs)) < 0)
1048 if (hls->max_seg_size > 0) {
1056 static int parse_playlist(AVFormatContext *s, const char *url, VariantStream *vs)
1058 HLSContext *hls = s->priv_data;
1060 int ret = 0, is_segment = 0;
1061 int64_t new_start_pos;
1066 if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ,
1067 &s->interrupt_callback, NULL,
1068 s->protocol_whitelist, s->protocol_blacklist)) < 0)
1071 ff_get_chomp_line(in, line, sizeof(line));
1072 if (strcmp(line, "#EXTM3U")) {
1073 ret = AVERROR_INVALIDDATA;
1077 vs->discontinuity = 0;
1078 while (!avio_feof(in)) {
1079 ff_get_chomp_line(in, line, sizeof(line));
1080 if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
1081 int64_t tmp_sequence = strtoll(ptr, NULL, 10);
1082 if (tmp_sequence < vs->sequence)
1083 av_log(hls, AV_LOG_VERBOSE,
1084 "Found playlist sequence number was smaller """
1085 "than specified start sequence number: %"PRId64" < %"PRId64", "
1086 "omitting\n", tmp_sequence, hls->start_sequence);
1088 av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence);
1089 vs->sequence = tmp_sequence;
1091 } else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) {
1093 vs->discontinuity = 1;
1094 } else if (av_strstart(line, "#EXTINF:", &ptr)) {
1096 vs->duration = atof(ptr);
1097 } else if (av_stristart(line, "#EXT-X-KEY:", &ptr)) {
1098 ptr = av_stristr(line, "URI=\"");
1100 ptr += strlen("URI=\"");
1101 end = av_stristr(ptr, ",");
1103 av_strlcpy(hls->key_uri, ptr, end - ptr);
1105 av_strlcpy(hls->key_uri, ptr, sizeof(hls->key_uri));
1109 ptr = av_stristr(line, "IV=0x");
1111 ptr += strlen("IV=0x");
1112 end = av_stristr(ptr, ",");
1114 av_strlcpy(hls->iv_string, ptr, end - ptr);
1116 av_strlcpy(hls->iv_string, ptr, sizeof(hls->iv_string));
1120 } else if (av_strstart(line, "#", NULL)) {
1122 } else if (line[0]) {
1124 char *new_file = av_strdup(line);
1126 ret = AVERROR(ENOMEM);
1129 ff_format_set_url(vs->avf, new_file);
1131 new_start_pos = avio_tell(vs->avf->pb);
1132 vs->size = new_start_pos - vs->start_pos;
1133 ret = hls_append_segment(s, hls, vs, vs->duration, vs->start_pos, vs->size);
1136 vs->start_pos = new_start_pos;
1146 static void hls_free_segments(HLSSegment *p)
1157 static int hls_rename_temp_file(AVFormatContext *s, AVFormatContext *oc)
1159 size_t len = strlen(oc->url);
1160 char *final_filename = av_strdup(oc->url);
1163 if (!final_filename)
1164 return AVERROR(ENOMEM);
1165 final_filename[len-4] = '\0';
1166 ret = ff_rename(oc->url, final_filename, s);
1167 oc->url[len-4] = '\0';
1168 av_freep(&final_filename);
1172 static int get_relative_url(const char *master_url, const char *media_url,
1173 char *rel_url, int rel_url_buf_size)
1177 p = strrchr(master_url, '/') ? strrchr(master_url, '/') :\
1178 strrchr(master_url, '\\');
1180 base_len = FFABS(p - master_url);
1181 if (av_strncasecmp(master_url, media_url, base_len)) {
1182 av_log(NULL, AV_LOG_WARNING, "Unable to find relative url\n");
1183 return AVERROR(EINVAL);
1186 av_strlcpy(rel_url, &(media_url[base_len + 1]), rel_url_buf_size);
1190 static int64_t get_stream_bit_rate(AVStream *stream) {
1191 AVCPBProperties *props = (AVCPBProperties*)av_stream_get_side_data(
1193 AV_PKT_DATA_CPB_PROPERTIES,
1197 if (stream->codecpar->bit_rate)
1198 return stream->codecpar->bit_rate;
1200 return props->max_bitrate;
1205 static int create_master_playlist(AVFormatContext *s,
1206 VariantStream * const input_vs)
1208 HLSContext *hls = s->priv_data;
1209 VariantStream *vs, *temp_vs;
1210 AVStream *vid_st, *aud_st;
1211 AVDictionary *options = NULL;
1213 int m3u8_name_size, ret, bandwidth;
1214 char *m3u8_rel_name, *ccgroup;
1215 ClosedCaptionsStream *ccs;
1217 input_vs->m3u8_created = 1;
1218 if (!hls->master_m3u8_created) {
1219 /* For the first time, wait until all the media playlists are created */
1220 for (i = 0; i < hls->nb_varstreams; i++)
1221 if (!hls->var_streams[i].m3u8_created)
1224 /* Keep publishing the master playlist at the configured rate */
1225 if (&hls->var_streams[0] != input_vs || !hls->master_publish_rate ||
1226 input_vs->number % hls->master_publish_rate)
1230 set_http_options(s, &options, hls);
1232 ret = hlsenc_io_open(s, &hls->m3u8_out, hls->master_m3u8_url, &options);
1233 av_dict_free(&options);
1235 av_log(NULL, AV_LOG_ERROR, "Failed to open master play list file '%s'\n",
1236 hls->master_m3u8_url);
1240 ff_hls_write_playlist_version(hls->m3u8_out, hls->version);
1242 for (i = 0; i < hls->nb_ccstreams; i++) {
1243 ccs = &(hls->cc_streams[i]);
1244 avio_printf(hls->m3u8_out, "#EXT-X-MEDIA:TYPE=CLOSED-CAPTIONS");
1245 avio_printf(hls->m3u8_out, ",GROUP-ID=\"%s\"", ccs->ccgroup);
1246 avio_printf(hls->m3u8_out, ",NAME=\"%s\"", ccs->instreamid);
1248 avio_printf(hls->m3u8_out, ",LANGUAGE=\"%s\"", ccs->language);
1249 avio_printf(hls->m3u8_out, ",INSTREAM-ID=\"%s\"\n", ccs->instreamid);
1252 /* For audio only variant streams add #EXT-X-MEDIA tag with attributes*/
1253 for (i = 0; i < hls->nb_varstreams; i++) {
1254 vs = &(hls->var_streams[i]);
1256 if (vs->has_video || vs->has_subtitle || !vs->agroup)
1259 m3u8_name_size = strlen(vs->m3u8_name) + 1;
1260 m3u8_rel_name = av_malloc(m3u8_name_size);
1261 if (!m3u8_rel_name) {
1262 ret = AVERROR(ENOMEM);
1265 av_strlcpy(m3u8_rel_name, vs->m3u8_name, m3u8_name_size);
1266 ret = get_relative_url(hls->master_m3u8_url, vs->m3u8_name,
1267 m3u8_rel_name, m3u8_name_size);
1269 av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
1273 ff_hls_write_audio_rendition(hls->m3u8_out, vs->agroup, m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
1275 av_freep(&m3u8_rel_name);
1278 /* For variant streams with video add #EXT-X-STREAM-INF tag with attributes*/
1279 for (i = 0; i < hls->nb_varstreams; i++) {
1280 vs = &(hls->var_streams[i]);
1282 m3u8_name_size = strlen(vs->m3u8_name) + 1;
1283 m3u8_rel_name = av_malloc(m3u8_name_size);
1284 if (!m3u8_rel_name) {
1285 ret = AVERROR(ENOMEM);
1288 av_strlcpy(m3u8_rel_name, vs->m3u8_name, m3u8_name_size);
1289 ret = get_relative_url(hls->master_m3u8_url, vs->m3u8_name,
1290 m3u8_rel_name, m3u8_name_size);
1292 av_log(NULL, AV_LOG_ERROR, "Unable to find relative URL\n");
1298 for (j = 0; j < vs->nb_streams; j++) {
1299 if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
1300 vid_st = vs->streams[j];
1301 else if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
1302 aud_st = vs->streams[j];
1305 if (!vid_st && !aud_st) {
1306 av_log(NULL, AV_LOG_WARNING, "Media stream not found\n");
1311 * Traverse through the list of audio only rendition streams and find
1312 * the rendition which has highest bitrate in the same audio group
1315 for (j = 0; j < hls->nb_varstreams; j++) {
1316 temp_vs = &(hls->var_streams[j]);
1317 if (!temp_vs->has_video && !temp_vs->has_subtitle &&
1319 !av_strcasecmp(temp_vs->agroup, vs->agroup)) {
1321 aud_st = temp_vs->streams[0];
1322 if (temp_vs->streams[0]->codecpar->bit_rate >
1323 aud_st->codecpar->bit_rate)
1324 aud_st = temp_vs->streams[0];
1331 bandwidth += get_stream_bit_rate(vid_st);
1333 bandwidth += get_stream_bit_rate(aud_st);
1334 bandwidth += bandwidth / 10;
1337 if (vid_st && vs->ccgroup) {
1338 /* check if this group name is available in the cc map string */
1339 for (j = 0; j < hls->nb_ccstreams; j++) {
1340 ccs = &(hls->cc_streams[j]);
1341 if (!av_strcasecmp(ccs->ccgroup, vs->ccgroup)) {
1342 ccgroup = vs->ccgroup;
1346 if (j == hls->nb_ccstreams)
1347 av_log(NULL, AV_LOG_WARNING, "mapping ccgroup %s not found\n",
1351 if (!hls->has_default_key || !hls->has_video_m3u8) {
1352 ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
1353 aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup);
1356 ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
1357 aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup);
1361 av_freep(&m3u8_rel_name);
1365 hls->master_m3u8_created = 1;
1366 av_freep(&m3u8_rel_name);
1367 hlsenc_io_close(s, &hls->m3u8_out, hls->master_m3u8_url);
1371 static int hls_window(AVFormatContext *s, int last, VariantStream *vs)
1373 HLSContext *hls = s->priv_data;
1375 int target_duration = 0;
1377 char temp_filename[1024];
1378 int64_t sequence = FFMAX(hls->start_sequence, vs->sequence - vs->nb_entries);
1379 const char *proto = avio_find_protocol_name(vs->m3u8_name);
1380 int is_file_proto = proto && !strcmp(proto, "file");
1381 int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || !(hls->pl_type == PLAYLIST_TYPE_VOD));
1382 static unsigned warned_non_file;
1383 char *key_uri = NULL;
1384 char *iv_string = NULL;
1385 AVDictionary *options = NULL;
1386 double prog_date_time = vs->initial_prog_date_time;
1387 double *prog_date_time_p = (hls->flags & HLS_PROGRAM_DATE_TIME) ? &prog_date_time : NULL;
1388 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1391 if (byterange_mode) {
1396 if (hls->flags & HLS_INDEPENDENT_SEGMENTS) {
1400 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1404 if (!is_file_proto && (hls->flags & HLS_TEMP_FILE) && !warned_non_file++)
1405 av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
1407 set_http_options(s, &options, hls);
1408 snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", vs->m3u8_name);
1409 if ((ret = hlsenc_io_open(s, &hls->m3u8_out, temp_filename, &options)) < 0) {
1410 if (hls->ignore_io_errors)
1415 for (en = vs->segments; en; en = en->next) {
1416 if (target_duration <= en->duration)
1417 target_duration = lrint(en->duration);
1420 vs->discontinuity_set = 0;
1421 ff_hls_write_playlist_header(hls->m3u8_out, hls->version, hls->allowcache,
1422 target_duration, sequence, hls->pl_type, hls->flags & HLS_I_FRAMES_ONLY);
1424 if((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && vs->discontinuity_set==0 ){
1425 avio_printf(hls->m3u8_out, "#EXT-X-DISCONTINUITY\n");
1426 vs->discontinuity_set = 1;
1428 if (vs->has_video && (hls->flags & HLS_INDEPENDENT_SEGMENTS)) {
1429 avio_printf(hls->m3u8_out, "#EXT-X-INDEPENDENT-SEGMENTS\n");
1431 for (en = vs->segments; en; en = en->next) {
1432 if ((hls->encrypt || hls->key_info_file) && (!key_uri || strcmp(en->key_uri, key_uri) ||
1433 av_strcasecmp(en->iv_string, iv_string))) {
1434 avio_printf(hls->m3u8_out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri);
1436 avio_printf(hls->m3u8_out, ",IV=0x%s", en->iv_string);
1437 avio_printf(hls->m3u8_out, "\n");
1438 key_uri = en->key_uri;
1439 iv_string = en->iv_string;
1442 if ((hls->segment_type == SEGMENT_TYPE_FMP4) && (en == vs->segments)) {
1443 ff_hls_write_init_file(hls->m3u8_out, (hls->flags & HLS_SINGLE_FILE) ? en->filename : vs->fmp4_init_filename,
1444 hls->flags & HLS_SINGLE_FILE, vs->init_range_length, 0);
1447 ret = ff_hls_write_file_entry(hls->m3u8_out, en->discont, byterange_mode,
1448 en->duration, hls->flags & HLS_ROUND_DURATIONS,
1449 en->size, en->pos, vs->baseurl,
1450 en->filename, prog_date_time_p, en->keyframe_size, en->keyframe_pos, hls->flags & HLS_I_FRAMES_ONLY);
1452 av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
1456 if (last && (hls->flags & HLS_OMIT_ENDLIST)==0)
1457 ff_hls_write_end_list(hls->m3u8_out);
1459 if( vs->vtt_m3u8_name ) {
1460 if ((ret = hlsenc_io_open(s, &hls->sub_m3u8_out, vs->vtt_m3u8_name, &options)) < 0) {
1461 if (hls->ignore_io_errors)
1465 ff_hls_write_playlist_header(hls->sub_m3u8_out, hls->version, hls->allowcache,
1466 target_duration, sequence, PLAYLIST_TYPE_NONE, 0);
1467 for (en = vs->segments; en; en = en->next) {
1468 ret = ff_hls_write_file_entry(hls->sub_m3u8_out, 0, byterange_mode,
1469 en->duration, 0, en->size, en->pos,
1470 vs->baseurl, en->sub_filename, NULL, 0, 0, 0);
1472 av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
1477 ff_hls_write_end_list(hls->sub_m3u8_out);
1482 av_dict_free(&options);
1483 hlsenc_io_close(s, &hls->m3u8_out, temp_filename);
1484 hlsenc_io_close(s, &hls->sub_m3u8_out, vs->vtt_m3u8_name);
1486 ff_rename(temp_filename, vs->m3u8_name, s);
1487 if (ret >= 0 && hls->master_pl_name)
1488 if (create_master_playlist(s, vs) < 0)
1489 av_log(s, AV_LOG_WARNING, "Master playlist creation failed\n");
1494 static int hls_start(AVFormatContext *s, VariantStream *vs)
1496 HLSContext *c = s->priv_data;
1497 AVFormatContext *oc = vs->avf;
1498 AVFormatContext *vtt_oc = vs->vtt_avf;
1499 AVDictionary *options = NULL;
1500 const char *proto = NULL;
1501 int use_temp_file = 0;
1502 char *filename, iv_string[KEYSIZE*2 + 1];
1505 if (c->flags & HLS_SINGLE_FILE) {
1506 char *new_name = av_strdup(vs->basename);
1508 return AVERROR(ENOMEM);
1509 ff_format_set_url(oc, new_name);
1510 if (vs->vtt_basename) {
1511 new_name = av_strdup(vs->vtt_basename);
1513 return AVERROR(ENOMEM);
1514 ff_format_set_url(vtt_oc, new_name);
1516 } else if (c->max_seg_size > 0) {
1517 char *filename = NULL;
1518 if (replace_int_data_in_filename(&filename,
1520 vs->basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1522 vs->basename, 'd', vs->sequence) < 1) {
1525 av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -strftime 1 with it\n", vs->basename);
1526 return AVERROR(EINVAL);
1528 ff_format_set_url(oc, filename);
1530 if (c->use_localtime) {
1532 struct tm *tm, tmpbuf;
1533 int bufsize = strlen(vs->basename) + 1024;
1534 char *buf = av_mallocz(bufsize);
1536 return AVERROR(ENOMEM);
1538 tm = localtime_r(&now0, &tmpbuf);
1539 ff_format_set_url(oc, buf);
1540 if (!strftime(oc->url, bufsize, vs->basename, tm)) {
1541 av_log(oc, AV_LOG_ERROR, "Could not get segment filename with strftime\n");
1542 return AVERROR(EINVAL);
1545 err = sls_flag_use_localtime_filename(oc, c, vs);
1547 return AVERROR(ENOMEM);
1550 if (c->use_localtime_mkdir) {
1552 char *fn_copy = av_strdup(oc->url);
1554 return AVERROR(ENOMEM);
1556 dir = av_dirname(fn_copy);
1557 if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
1558 av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir);
1560 return AVERROR(errno);
1565 char *filename = NULL;
1566 if (replace_int_data_in_filename(&filename,
1568 vs->basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1570 vs->basename, 'd', vs->sequence) < 1) {
1573 av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -strftime 1 with it\n", vs->basename);
1574 return AVERROR(EINVAL);
1576 ff_format_set_url(oc, filename);
1578 if( vs->vtt_basename) {
1579 char *filename = NULL;
1580 if (replace_int_data_in_filename(&filename,
1582 vs->vtt_basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1584 vs->vtt_basename, 'd', vs->sequence) < 1) {
1587 av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", vs->vtt_basename);
1588 return AVERROR(EINVAL);
1590 ff_format_set_url(vtt_oc, filename);
1595 set_http_options(s, &options, c);
1597 proto = avio_find_protocol_name(oc->url);
1598 use_temp_file = proto && !strcmp(proto, "file") && (c->flags & HLS_TEMP_FILE);
1600 if (use_temp_file) {
1601 char *new_name = av_asprintf("%s.tmp", oc->url);
1603 return AVERROR(ENOMEM);
1604 ff_format_set_url(oc, new_name);
1607 if (c->key_info_file || c->encrypt) {
1608 if (c->segment_type == SEGMENT_TYPE_FMP4) {
1609 av_log(s, AV_LOG_ERROR, "Encrypted fmp4 not yet supported\n");
1610 return AVERROR_PATCHWELCOME;
1613 if (c->key_info_file && c->encrypt) {
1614 av_log(s, AV_LOG_WARNING, "Cannot use both -hls_key_info_file and -hls_enc,"
1615 " ignoring -hls_enc\n");
1618 if (!c->encrypt_started || (c->flags & HLS_PERIODIC_REKEY)) {
1619 if (c->key_info_file) {
1620 if ((err = hls_encryption_start(s)) < 0)
1623 if ((err = do_encrypt(s, vs)) < 0)
1626 c->encrypt_started = 1;
1628 if ((err = av_dict_set(&options, "encryption_key", c->key_string, 0))
1631 err = av_strlcpy(iv_string, c->iv_string, sizeof(iv_string));
1633 snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, vs->sequence);
1634 if ((err = av_dict_set(&options, "encryption_iv", iv_string, 0)) < 0)
1637 filename = av_asprintf("crypto:%s", oc->url);
1639 err = AVERROR(ENOMEM);
1642 err = hlsenc_io_open(s, &oc->pb, filename, &options);
1644 av_dict_free(&options);
1647 } else if (c->segment_type != SEGMENT_TYPE_FMP4) {
1648 if ((err = hlsenc_io_open(s, &oc->pb, oc->url, &options)) < 0) {
1649 if (c->ignore_io_errors)
1654 if (vs->vtt_basename) {
1655 set_http_options(s, &options, c);
1656 if ((err = hlsenc_io_open(s, &vtt_oc->pb, vtt_oc->url, &options)) < 0) {
1657 if (c->ignore_io_errors)
1662 av_dict_free(&options);
1664 if (c->segment_type != SEGMENT_TYPE_FMP4) {
1665 /* We only require one PAT/PMT per segment. */
1666 if (oc->oformat->priv_class && oc->priv_data) {
1669 snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1);
1671 av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
1672 av_opt_set(oc->priv_data, "sdt_period", period, 0);
1673 av_opt_set(oc->priv_data, "pat_period", period, 0);
1677 if (vs->vtt_basename) {
1678 err = avformat_write_header(vtt_oc,NULL);
1685 av_dict_free(&options);
1690 static const char * get_default_pattern_localtime_fmt(AVFormatContext *s)
1693 time_t t = time(NULL);
1694 struct tm *p, tmbuf;
1695 HLSContext *hls = s->priv_data;
1697 p = localtime_r(&t, &tmbuf);
1698 // no %s support when strftime returned error or left format string unchanged
1699 // also no %s support on MSVC, which invokes the invalid parameter handler on unsupported format strings, instead of returning an error
1700 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1701 return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.m4s" : "-%s.m4s";
1703 return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts";
1706 static int append_postfix(char *name, int name_buf_len, int i)
1709 char extension[10] = {'\0'};
1711 p = strrchr(name, '.');
1713 av_strlcpy(extension, p, sizeof(extension));
1717 snprintf(name + strlen(name), name_buf_len - strlen(name), POSTFIX_PATTERN, i);
1719 if (strlen(extension))
1720 av_strlcat(name, extension, name_buf_len);
1725 static int validate_name(int nb_vs, const char *fn)
1727 const char *filename, *subdir_name;
1728 char *fn_dup = NULL;
1732 ret = AVERROR(EINVAL);
1736 fn_dup = av_strdup(fn);
1738 ret = AVERROR(ENOMEM);
1742 filename = av_basename(fn);
1743 subdir_name = av_dirname(fn_dup);
1745 if (nb_vs > 1 && !av_stristr(filename, "%v") && !av_stristr(subdir_name, "%v")) {
1746 av_log(NULL, AV_LOG_ERROR, "More than 1 variant streams are present, %%v is expected in the filename %s\n",
1748 ret = AVERROR(EINVAL);
1752 if (av_stristr(filename, "%v") && av_stristr(subdir_name, "%v")) {
1753 av_log(NULL, AV_LOG_ERROR, "%%v is expected either in filename or in the sub-directory name of file %s\n",
1755 ret = AVERROR(EINVAL);
1764 static int format_name(char *buf, int buf_len, int index)
1766 const char *proto, *dir;
1767 char *orig_buf_dup = NULL, *mod_buf = NULL, *mod_buf_dup = NULL;
1770 if (!av_stristr(buf, "%v"))
1773 orig_buf_dup = av_strdup(buf);
1774 if (!orig_buf_dup) {
1775 ret = AVERROR(ENOMEM);
1779 if (replace_int_data_in_filename(&mod_buf, orig_buf_dup, 'v', index) < 1) {
1780 ret = AVERROR(EINVAL);
1783 av_strlcpy(buf, mod_buf, buf_len);
1785 proto = avio_find_protocol_name(orig_buf_dup);
1786 dir = av_dirname(orig_buf_dup);
1788 /* if %v is present in the file's directory, create sub-directory */
1789 if (av_stristr(dir, "%v") && proto && !strcmp(proto, "file")) {
1790 mod_buf_dup = av_strdup(buf);
1792 ret = AVERROR(ENOMEM);
1796 dir = av_dirname(mod_buf_dup);
1797 if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
1798 ret = AVERROR(errno);
1804 av_freep(&orig_buf_dup);
1805 av_freep(&mod_buf_dup);
1810 static int get_nth_codec_stream_index(AVFormatContext *s,
1811 enum AVMediaType codec_type,
1814 unsigned int stream_index, cnt;
1815 if (stream_id < 0 || stream_id > s->nb_streams - 1)
1818 for (stream_index = 0; stream_index < s->nb_streams; stream_index++) {
1819 if (s->streams[stream_index]->codecpar->codec_type != codec_type)
1821 if (cnt == stream_id)
1822 return stream_index;
1828 static int parse_variant_stream_mapstring(AVFormatContext *s)
1830 HLSContext *hls = s->priv_data;
1833 enum AVMediaType codec_type;
1834 int nb_varstreams, nb_streams;
1835 char *p, *q, *saveptr1, *saveptr2, *varstr, *keyval;
1839 * Expected format for var_stream_map string is as below:
1841 * "a:0,agroup:a0,default:1,language:ENG a:1,agroup:a1,default:0 v:0,agroup:a0 v:1,agroup:a1"
1842 * This string specifies how to group the audio, video and subtitle streams
1843 * into different variant streams. The variant stream groups are separated
1846 * a:, v:, s: are keys to specify audio, video and subtitle streams
1847 * respectively. Allowed values are 0 to 9 digits (limited just based on
1850 * agroup: is key to specify audio group. A string can be given as value.
1852 p = av_strdup(hls->var_stream_map);
1854 while(av_strtok(q, " \t", &saveptr1)) {
1856 hls->nb_varstreams++;
1860 hls->var_streams = av_mallocz(sizeof(*hls->var_streams) * hls->nb_varstreams);
1861 if (!hls->var_streams)
1862 return AVERROR(ENOMEM);
1864 p = hls->var_stream_map;
1866 while (varstr = av_strtok(p, " \t", &saveptr1)) {
1869 if (nb_varstreams < hls->nb_varstreams) {
1870 vs = &(hls->var_streams[nb_varstreams]);
1871 vs->var_stream_idx = nb_varstreams;
1875 return AVERROR(EINVAL);
1878 while (q < varstr + strlen(varstr)) {
1879 if (!av_strncasecmp(q, "a:", 2) || !av_strncasecmp(q, "v:", 2) ||
1880 !av_strncasecmp(q, "s:", 2))
1884 vs->streams = av_mallocz(sizeof(AVStream *) * vs->nb_streams);
1886 return AVERROR(ENOMEM);
1889 while (keyval = av_strtok(varstr, ",", &saveptr2)) {
1891 if (av_strstart(keyval, "language:", &val)) {
1892 vs->language = av_strdup(val);
1894 return AVERROR(ENOMEM);
1896 } else if (av_strstart(keyval, "default:", &val)) {
1897 vs->is_default = (!av_strncasecmp(val, "YES", strlen("YES")) ||
1898 (!av_strncasecmp(val, "1", strlen("1"))));
1899 hls->has_default_key = 1;
1901 } else if (av_strstart(keyval, "agroup:", &val)) {
1902 vs->agroup = av_strdup(val);
1904 return AVERROR(ENOMEM);
1906 } else if (av_strstart(keyval, "ccgroup:", &val)) {
1907 vs->ccgroup = av_strdup(val);
1909 return AVERROR(ENOMEM);
1911 } else if (av_strstart(keyval, "v:", &val)) {
1912 codec_type = AVMEDIA_TYPE_VIDEO;
1913 hls->has_video_m3u8 = 1;
1914 } else if (av_strstart(keyval, "a:", &val)) {
1915 codec_type = AVMEDIA_TYPE_AUDIO;
1916 } else if (av_strstart(keyval, "s:", &val)) {
1917 codec_type = AVMEDIA_TYPE_SUBTITLE;
1919 av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
1920 return AVERROR(EINVAL);
1924 if (av_isdigit(*val))
1925 stream_index = get_nth_codec_stream_index (s, codec_type,
1928 if (stream_index >= 0 && nb_streams < vs->nb_streams) {
1929 vs->streams[nb_streams++] = s->streams[stream_index];
1931 av_log(s, AV_LOG_ERROR, "Unable to map stream at %s\n", keyval);
1932 return AVERROR(EINVAL);
1936 av_log(s, AV_LOG_DEBUG, "Number of variant streams %d\n",
1937 hls->nb_varstreams);
1942 static int parse_cc_stream_mapstring(AVFormatContext *s)
1944 HLSContext *hls = s->priv_data;
1946 char *p, *q, *ccstr, *keyval;
1947 char *saveptr1 = NULL, *saveptr2 = NULL;
1949 ClosedCaptionsStream *ccs;
1951 p = av_strdup(hls->cc_stream_map);
1953 while(av_strtok(q, " \t", &saveptr1)) {
1955 hls->nb_ccstreams++;
1959 hls->cc_streams = av_mallocz(sizeof(*hls->cc_streams) * hls->nb_ccstreams);
1960 if (!hls->cc_streams)
1961 return AVERROR(ENOMEM);
1963 p = hls->cc_stream_map;
1965 while (ccstr = av_strtok(p, " \t", &saveptr1)) {
1968 if (nb_ccstreams < hls->nb_ccstreams)
1969 ccs = &(hls->cc_streams[nb_ccstreams++]);
1971 return AVERROR(EINVAL);
1973 while (keyval = av_strtok(ccstr, ",", &saveptr2)) {
1976 if (av_strstart(keyval, "ccgroup:", &val)) {
1977 ccs->ccgroup = av_strdup(val);
1979 return AVERROR(ENOMEM);
1980 } else if (av_strstart(keyval, "instreamid:", &val)) {
1981 ccs->instreamid = av_strdup(val);
1982 if (!ccs->instreamid)
1983 return AVERROR(ENOMEM);
1984 } else if (av_strstart(keyval, "language:", &val)) {
1985 ccs->language = av_strdup(val);
1987 return AVERROR(ENOMEM);
1989 av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
1990 return AVERROR(EINVAL);
1994 if (!ccs->ccgroup || !ccs->instreamid) {
1995 av_log(s, AV_LOG_ERROR, "Insufficient parameters in cc stream map string\n");
1996 return AVERROR(EINVAL);
1999 if (av_strstart(ccs->instreamid, "CC", &val)) {
2000 if(atoi(val) < 1 || atoi(val) > 4) {
2001 av_log(s, AV_LOG_ERROR, "Invalid instream ID CC index %d in %s, range 1-4\n",
2002 atoi(val), ccs->instreamid);
2003 return AVERROR(EINVAL);
2005 } else if (av_strstart(ccs->instreamid, "SERVICE", &val)) {
2006 if(atoi(val) < 1 || atoi(val) > 63) {
2007 av_log(s, AV_LOG_ERROR, "Invalid instream ID SERVICE index %d in %s, range 1-63 \n",
2008 atoi(val), ccs->instreamid);
2009 return AVERROR(EINVAL);
2012 av_log(s, AV_LOG_ERROR, "Invalid instream ID %s, supported are CCn or SERIVICEn\n",
2014 return AVERROR(EINVAL);
2021 static int update_variant_stream_info(AVFormatContext *s) {
2022 HLSContext *hls = s->priv_data;
2026 if (hls->cc_stream_map) {
2027 ret = parse_cc_stream_mapstring(s);
2032 if (hls->var_stream_map) {
2033 return parse_variant_stream_mapstring(s);
2035 //By default, a single variant stream with all the codec streams is created
2036 hls->nb_varstreams = 1;
2037 hls->var_streams = av_mallocz(sizeof(*hls->var_streams) *
2038 hls->nb_varstreams);
2039 if (!hls->var_streams)
2040 return AVERROR(ENOMEM);
2042 hls->var_streams[0].var_stream_idx = 0;
2043 hls->var_streams[0].nb_streams = s->nb_streams;
2044 hls->var_streams[0].streams = av_mallocz(sizeof(AVStream *) *
2045 hls->var_streams[0].nb_streams);
2046 if (!hls->var_streams[0].streams)
2047 return AVERROR(ENOMEM);
2049 //by default, the first available ccgroup is mapped to the variant stream
2050 if (hls->nb_ccstreams) {
2051 hls->var_streams[0].ccgroup = av_strdup(hls->cc_streams[0].ccgroup);
2052 if (!hls->var_streams[0].ccgroup)
2053 return AVERROR(ENOMEM);
2056 for (i = 0; i < s->nb_streams; i++)
2057 hls->var_streams[0].streams[i] = s->streams[i];
2062 static int update_master_pl_info(AVFormatContext *s) {
2063 HLSContext *hls = s->priv_data;
2065 char *fn1= NULL, *fn2 = NULL;
2068 fn1 = av_strdup(s->url);
2070 ret = AVERROR(ENOMEM);
2074 dir = av_dirname(fn1);
2077 * if output file's directory has %v, variants are created in sub-directories
2078 * then master is created at the sub-directories level
2080 if (dir && av_stristr(av_basename(dir), "%v")) {
2081 fn2 = av_strdup(dir);
2083 ret = AVERROR(ENOMEM);
2086 dir = av_dirname(fn2);
2089 if (dir && strcmp(dir, "."))
2090 hls->master_m3u8_url = av_append_path_component(dir, hls->master_pl_name);
2092 hls->master_m3u8_url = av_strdup(hls->master_pl_name);
2094 if (!hls->master_m3u8_url) {
2095 ret = AVERROR(ENOMEM);
2106 static int hls_write_header(AVFormatContext *s)
2108 HLSContext *hls = s->priv_data;
2110 VariantStream *vs = NULL;
2112 for (i = 0; i < hls->nb_varstreams; i++) {
2113 vs = &hls->var_streams[i];
2115 ret = avformat_write_header(vs->avf, NULL);
2118 //av_assert0(s->nb_streams == hls->avf->nb_streams);
2119 for (j = 0; j < vs->nb_streams; j++) {
2121 AVStream *outer_st = vs->streams[j];
2123 if (hls->max_seg_size > 0) {
2124 if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
2125 (outer_st->codecpar->bit_rate > hls->max_seg_size)) {
2126 av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, "
2127 "(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.",
2128 outer_st->codecpar->bit_rate, hls->max_seg_size);
2132 if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
2133 inner_st = vs->avf->streams[j];
2134 else if (vs->vtt_avf)
2135 inner_st = vs->vtt_avf->streams[0];
2137 /* We have a subtitle stream, when the user does not want one */
2141 avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
2142 write_codec_attr(outer_st, vs);
2145 /* Update the Codec Attr string for the mapped audio groups */
2146 if (vs->has_video && vs->agroup) {
2147 for (j = 0; j < hls->nb_varstreams; j++) {
2148 VariantStream *vs_agroup = &(hls->var_streams[j]);
2149 if (!vs_agroup->has_video && !vs_agroup->has_subtitle &&
2150 vs_agroup->agroup &&
2151 !av_strcasecmp(vs_agroup->agroup, vs->agroup)) {
2152 write_codec_attr(vs_agroup->streams[0], vs);
2161 static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
2163 HLSContext *hls = s->priv_data;
2164 AVFormatContext *oc = NULL;
2165 AVStream *st = s->streams[pkt->stream_index];
2166 int64_t end_pts = 0;
2168 int ret = 0, can_split = 1, i, j;
2169 int stream_index = 0;
2170 int range_length = 0;
2171 const char *proto = NULL;
2172 int use_temp_file = 0;
2173 uint8_t *buffer = NULL;
2174 VariantStream *vs = NULL;
2175 AVDictionary *options = NULL;
2176 char *old_filename = NULL;
2178 for (i = 0; i < hls->nb_varstreams; i++) {
2179 vs = &hls->var_streams[i];
2180 for (j = 0; j < vs->nb_streams; j++) {
2181 if (vs->streams[j] == st) {
2182 if( st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE ) {
2198 av_log(s, AV_LOG_ERROR, "Unable to find mapping variant stream\n");
2199 return AVERROR(ENOMEM);
2202 end_pts = hls->recording_time * vs->number;
2204 if (vs->sequence - vs->nb_entries > hls->start_sequence && hls->init_time > 0) {
2205 /* reset end_pts, hls->recording_time at end of the init hls list */
2206 int init_list_dur = hls->init_time * vs->nb_entries * AV_TIME_BASE;
2207 int after_init_list_dur = (vs->sequence - hls->start_sequence - vs->nb_entries ) * (hls->time * AV_TIME_BASE);
2208 hls->recording_time = hls->time * AV_TIME_BASE;
2209 end_pts = init_list_dur + after_init_list_dur ;
2212 if (vs->start_pts == AV_NOPTS_VALUE) {
2213 vs->start_pts = pkt->pts;
2216 if (vs->has_video) {
2217 can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
2218 ((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME));
2219 is_ref_pkt = (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->stream_index == vs->reference_stream_index);
2221 if (pkt->pts == AV_NOPTS_VALUE)
2222 is_ref_pkt = can_split = 0;
2225 if (vs->end_pts == AV_NOPTS_VALUE)
2226 vs->end_pts = pkt->pts;
2227 if (vs->new_start) {
2229 vs->duration = (double)(pkt->pts - vs->end_pts)
2230 * st->time_base.num / st->time_base.den;
2231 vs->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den;
2233 if (pkt->duration) {
2234 vs->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den;
2236 av_log(s, AV_LOG_WARNING, "pkt->duration = 0, maybe the hls segment duration will not precise\n");
2237 vs->duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den;
2243 if (vs->packets_written && can_split && av_compare_ts(pkt->pts - vs->start_pts, st->time_base,
2244 end_pts, AV_TIME_BASE_Q) >= 0) {
2245 int64_t new_start_pos;
2246 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
2248 av_write_frame(vs->avf, NULL); /* Flush any buffered data */
2250 new_start_pos = avio_tell(vs->avf->pb);
2252 if (hls->segment_type != SEGMENT_TYPE_FMP4) {
2254 vs->size = new_start_pos - vs->start_pos;
2256 vs->size = new_start_pos;
2259 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2260 if (!vs->init_range_length) {
2262 range_length = avio_close_dyn_buf(oc->pb, &buffer);
2263 avio_write(vs->out, buffer, range_length);
2265 vs->init_range_length = range_length;
2266 avio_open_dyn_buf(&oc->pb);
2267 vs->packets_written = 0;
2268 vs->start_pos = range_length;
2269 if (!byterange_mode) {
2270 ff_format_io_close(s, &vs->out);
2271 hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
2275 if (!byterange_mode) {
2276 hlsenc_io_close(s, &oc->pb, oc->url);
2279 if (!byterange_mode) {
2281 hlsenc_io_close(s, &vs->vtt_avf->pb, vs->vtt_avf->url);
2286 proto = avio_find_protocol_name(oc->url);
2287 use_temp_file = proto && !strcmp(proto, "file") && (hls->flags & HLS_TEMP_FILE);
2290 // look to rename the asset name
2291 if (use_temp_file) {
2292 if (!(hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size <= 0))
2293 if ((vs->avf->oformat->priv_class && vs->avf->priv_data) && hls->segment_type != SEGMENT_TYPE_FMP4)
2294 av_opt_set(vs->avf->priv_data, "mpegts_flags", "resend_headers", 0);
2297 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2298 if (hls->flags & HLS_SINGLE_FILE) {
2299 ret = flush_dynbuf(vs, &range_length);
2303 vs->size = range_length;
2305 set_http_options(s, &options, hls);
2306 ret = hlsenc_io_open(s, &vs->out, vs->avf->url, &options);
2308 av_log(s, hls->ignore_io_errors ? AV_LOG_WARNING : AV_LOG_ERROR,
2309 "Failed to open file '%s'\n", vs->avf->url);
2310 return hls->ignore_io_errors ? 0 : ret;
2312 write_styp(vs->out);
2313 ret = flush_dynbuf(vs, &range_length);
2317 ff_format_io_close(s, &vs->out);
2321 if (use_temp_file && !(hls->flags & HLS_SINGLE_FILE)) {
2322 hls_rename_temp_file(s, oc);
2325 old_filename = av_strdup(vs->avf->url);
2326 if (!old_filename) {
2327 return AVERROR(ENOMEM);
2330 if (vs->start_pos || hls->segment_type != SEGMENT_TYPE_FMP4) {
2331 ret = hls_append_segment(s, hls, vs, vs->duration, vs->start_pos, vs->size);
2332 vs->end_pts = pkt->pts;
2335 av_free(old_filename);
2340 if (hls->segment_type != SEGMENT_TYPE_FMP4) {
2341 vs->start_pos = new_start_pos;
2343 vs->start_pos += vs->size;
2346 if (hls->flags & HLS_SINGLE_FILE) {
2348 } else if (hls->max_seg_size > 0) {
2349 if (vs->start_pos >= hls->max_seg_size) {
2351 sls_flag_file_rename(hls, vs, old_filename);
2352 ret = hls_start(s, vs);
2354 /* When split segment by byte, the duration is short than hls_time,
2355 * so it is not enough one segment duration as hls_time, */
2360 sls_flag_file_rename(hls, vs, old_filename);
2361 ret = hls_start(s, vs);
2363 av_free(old_filename);
2369 // if we're building a VOD playlist, skip writing the manifest multiple times, and just wait until the end
2370 if (hls->pl_type != PLAYLIST_TYPE_VOD) {
2371 if ((ret = hls_window(s, 0, vs)) < 0) {
2377 vs->packets_written++;
2379 ret = ff_write_chained(oc, stream_index, pkt, s, 0);
2380 if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->flags & AV_PKT_FLAG_KEY)) {
2381 vs->video_keyframe_size = avio_tell(oc->pb) - vs->video_lastpos;
2382 vs->video_keyframe_pos = vs->start_pos;
2384 vs->video_lastpos = avio_tell(oc->pb);
2387 if (hls->ignore_io_errors)
2394 static void hls_free_variant_streams(struct HLSContext *hls)
2397 AVFormatContext *vtt_oc = NULL;
2398 VariantStream *vs = NULL;
2400 for (i = 0; i < hls->nb_varstreams; i++) {
2401 vs = &hls->var_streams[i];
2402 vtt_oc = vs->vtt_avf;
2404 av_freep(&vs->basename);
2405 av_freep(&vs->base_output_dirname);
2406 av_freep(&vs->fmp4_init_filename);
2408 av_freep(&vs->vtt_basename);
2409 av_freep(&vs->vtt_m3u8_name);
2412 hls_free_segments(vs->segments);
2413 hls_free_segments(vs->old_segments);
2414 av_freep(&vs->m3u8_name);
2415 av_freep(&vs->streams);
2416 av_freep(&vs->agroup);
2417 av_freep(&vs->language);
2418 av_freep(&vs->ccgroup);
2419 av_freep(&vs->baseurl);
2423 static int hls_write_trailer(struct AVFormatContext *s)
2425 HLSContext *hls = s->priv_data;
2426 AVFormatContext *oc = NULL;
2427 AVFormatContext *vtt_oc = NULL;
2428 char *old_filename = NULL;
2429 const char *proto = NULL;
2430 int use_temp_file = 0;
2433 VariantStream *vs = NULL;
2435 for (i = 0; i < hls->nb_varstreams; i++) {
2436 vs = &hls->var_streams[i];
2439 vtt_oc = vs->vtt_avf;
2440 old_filename = av_strdup(vs->avf->url);
2443 if (!old_filename) {
2444 return AVERROR(ENOMEM);
2446 if ( hls->segment_type == SEGMENT_TYPE_FMP4) {
2447 int range_length = 0;
2448 if (!vs->init_range_length) {
2449 uint8_t *buffer = NULL;
2450 int range_length, byterange_mode;
2451 av_write_frame(vs->avf, NULL); /* Flush any buffered data */
2454 range_length = avio_close_dyn_buf(oc->pb, &buffer);
2455 avio_write(vs->out, buffer, range_length);
2457 vs->init_range_length = range_length;
2458 avio_open_dyn_buf(&oc->pb);
2459 vs->packets_written = 0;
2460 vs->start_pos = range_length;
2461 byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
2462 if (!byterange_mode) {
2463 ff_format_io_close(s, &vs->out);
2464 hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
2467 if (!(hls->flags & HLS_SINGLE_FILE)) {
2468 ret = hlsenc_io_open(s, &vs->out, vs->avf->url, NULL);
2470 av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", vs->avf->url);
2473 write_styp(vs->out);
2475 ret = flush_dynbuf(vs, &range_length);
2479 vs->size = range_length;
2480 ff_format_io_close(s, &vs->out);
2484 av_write_trailer(oc);
2487 proto = avio_find_protocol_name(oc->url);
2488 use_temp_file = proto && !strcmp(proto, "file") && (hls->flags & HLS_TEMP_FILE);
2492 if (hls->segment_type != SEGMENT_TYPE_FMP4) {
2493 vs->size = avio_tell(vs->avf->pb) - vs->start_pos;
2494 ff_format_io_close(s, &oc->pb);
2497 // rename that segment from .tmp to the real one
2498 if (use_temp_file && !(hls->flags & HLS_SINGLE_FILE)) {
2499 hls_rename_temp_file(s, oc);
2500 av_free(old_filename);
2501 old_filename = av_strdup(vs->avf->url);
2503 if (!old_filename) {
2504 return AVERROR(ENOMEM);
2508 /* after av_write_trailer, then duration + 1 duration per packet */
2509 hls_append_segment(s, hls, vs, vs->duration + vs->dpp, vs->start_pos, vs->size);
2512 sls_flag_file_rename(hls, vs, old_filename);
2516 av_write_trailer(vtt_oc);
2517 vs->size = avio_tell(vs->vtt_avf->pb) - vs->start_pos;
2518 ff_format_io_close(s, &vtt_oc->pb);
2519 avformat_free_context(vtt_oc);
2521 avformat_free_context(oc);
2524 hls_window(s, 1, vs);
2525 av_free(old_filename);
2528 hls_free_variant_streams(hls);
2530 for (i = 0; i < hls->nb_ccstreams; i++) {
2531 ClosedCaptionsStream *ccs = &hls->cc_streams[i];
2532 av_freep(&ccs->ccgroup);
2533 av_freep(&ccs->instreamid);
2534 av_freep(&ccs->language);
2537 ff_format_io_close(s, &hls->m3u8_out);
2538 ff_format_io_close(s, &hls->sub_m3u8_out);
2539 av_freep(&hls->key_basename);
2540 av_freep(&hls->var_streams);
2541 av_freep(&hls->cc_streams);
2542 av_freep(&hls->master_m3u8_url);
2547 static int hls_init(AVFormatContext *s)
2552 HLSContext *hls = s->priv_data;
2553 const char *pattern = "%d.ts";
2554 VariantStream *vs = NULL;
2555 int basename_size = 0;
2556 const char *pattern_localtime_fmt = get_default_pattern_localtime_fmt(s);
2557 const char *vtt_pattern = "%d.vtt";
2559 int vtt_basename_size = 0;
2560 int fmp4_init_filename_len = strlen(hls->fmp4_init_filename) + 1;
2562 hls->has_default_key = 0;
2563 hls->has_video_m3u8 = 0;
2564 ret = update_variant_stream_info(s);
2566 av_log(s, AV_LOG_ERROR, "Variant stream info update failed with status %x\n",
2570 //TODO: Updates needed to encryption functionality with periodic re-key when more than one variant streams are present
2571 if (hls->nb_varstreams > 1 && hls->flags & HLS_PERIODIC_REKEY) {
2572 ret = AVERROR(EINVAL);
2573 av_log(s, AV_LOG_ERROR, "Periodic re-key not supported when more than one variant streams are present\n");
2577 ret = validate_name(hls->nb_varstreams, s->url);
2581 if (hls->segment_filename) {
2582 ret = validate_name(hls->nb_varstreams, hls->segment_filename);
2587 if (av_strcasecmp(hls->fmp4_init_filename, "init.mp4")) {
2588 ret = validate_name(hls->nb_varstreams, hls->fmp4_init_filename);
2593 if (hls->subtitle_filename) {
2594 ret = validate_name(hls->nb_varstreams, hls->subtitle_filename);
2599 if (hls->master_pl_name) {
2600 ret = update_master_pl_info(s);
2602 av_log(s, AV_LOG_ERROR, "Master stream info update failed with status %x\n",
2608 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2611 if ((hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) ||
2612 (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME)) {
2613 time_t t = time(NULL); // we will need it in either case
2614 if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) {
2615 hls->start_sequence = (int64_t)t;
2616 } else if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME) {
2618 struct tm *p, tmbuf;
2619 if (!(p = localtime_r(&t, &tmbuf)))
2620 return AVERROR(ENOMEM);
2621 if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p))
2622 return AVERROR(ENOMEM);
2623 hls->start_sequence = strtoll(b, NULL, 10);
2625 av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
2628 hls->recording_time = (hls->init_time ? hls->init_time : hls->time) * AV_TIME_BASE;
2629 for (i = 0; i < hls->nb_varstreams; i++) {
2630 vs = &hls->var_streams[i];
2632 vs->m3u8_name = av_strdup(s->url);
2633 if (!vs->m3u8_name ) {
2634 ret = AVERROR(ENOMEM);
2637 ret = format_name(vs->m3u8_name, strlen(s->url) + 1, i);
2641 vs->sequence = hls->start_sequence;
2642 vs->start_pts = AV_NOPTS_VALUE;
2643 vs->end_pts = AV_NOPTS_VALUE;
2644 vs->current_segment_final_filename_fmt[0] = '\0';
2646 if (hls->flags & HLS_SPLIT_BY_TIME && hls->flags & HLS_INDEPENDENT_SEGMENTS) {
2647 // Independent segments cannot be guaranteed when splitting by time
2648 hls->flags &= ~HLS_INDEPENDENT_SEGMENTS;
2649 av_log(s, AV_LOG_WARNING,
2650 "'split_by_time' and 'independent_segments' cannot be enabled together. "
2651 "Disabling 'independent_segments' flag\n");
2654 if (hls->flags & HLS_PROGRAM_DATE_TIME) {
2657 vs->initial_prog_date_time = now0;
2659 if (hls->format_options_str) {
2660 ret = av_dict_parse_string(&hls->format_options, hls->format_options_str, "=", ":", 0);
2662 av_log(s, AV_LOG_ERROR, "Could not parse format options list '%s'\n", hls->format_options_str);
2667 for (j = 0; j < vs->nb_streams; j++) {
2668 vs->has_video += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO;
2669 /* Get one video stream to reference for split segments
2670 * so use the first video stream index. */
2671 if ((vs->has_video == 1) && (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)) {
2672 vs->reference_stream_index = vs->streams[j]->index;
2674 vs->has_subtitle += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE;
2677 if (vs->has_video > 1)
2678 av_log(s, AV_LOG_WARNING, "More than a single video stream present, expect issues decoding it.\n");
2679 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2680 vs->oformat = av_guess_format("mp4", NULL, NULL);
2682 vs->oformat = av_guess_format("mpegts", NULL, NULL);
2686 ret = AVERROR_MUXER_NOT_FOUND;
2690 if (vs->has_subtitle) {
2691 vs->vtt_oformat = av_guess_format("webvtt", NULL, NULL);
2693 ret = AVERROR_MUXER_NOT_FOUND;
2697 if (hls->segment_filename) {
2698 basename_size = strlen(hls->segment_filename) + 1;
2699 vs->basename = av_malloc(basename_size);
2700 if (!vs->basename) {
2701 ret = AVERROR(ENOMEM);
2705 av_strlcpy(vs->basename, hls->segment_filename, basename_size);
2706 ret = format_name(vs->basename, basename_size, i);
2710 if (hls->flags & HLS_SINGLE_FILE) {
2711 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2718 if (hls->use_localtime) {
2719 basename_size = strlen(vs->m3u8_name) + strlen(pattern_localtime_fmt) + 1;
2721 basename_size = strlen(vs->m3u8_name) + strlen(pattern) + 1;
2724 vs->basename = av_malloc(basename_size);
2725 if (!vs->basename) {
2726 ret = AVERROR(ENOMEM);
2730 av_strlcpy(vs->basename, vs->m3u8_name, basename_size);
2732 p = strrchr(vs->basename, '.');
2735 if (hls->use_localtime) {
2736 av_strlcat(vs->basename, pattern_localtime_fmt, basename_size);
2738 av_strlcat(vs->basename, pattern, basename_size);
2742 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2743 if (hls->nb_varstreams > 1)
2744 fmp4_init_filename_len += strlen(POSTFIX_PATTERN);
2745 if (hls->flags & HLS_SINGLE_FILE) {
2746 vs->fmp4_init_filename = av_strdup(vs->basename);
2747 if (!vs->fmp4_init_filename) {
2748 ret = AVERROR(ENOMEM);
2752 vs->fmp4_init_filename = av_malloc(fmp4_init_filename_len);
2753 if (!vs->fmp4_init_filename ) {
2754 ret = AVERROR(ENOMEM);
2757 av_strlcpy(vs->fmp4_init_filename, hls->fmp4_init_filename,
2758 fmp4_init_filename_len);
2759 if (hls->nb_varstreams > 1) {
2760 if (av_stristr(vs->fmp4_init_filename, "%v")) {
2761 format_name(vs->fmp4_init_filename, fmp4_init_filename_len, i);
2763 ret = append_postfix(vs->fmp4_init_filename, fmp4_init_filename_len, i);
2769 fmp4_init_filename_len = strlen(vs->m3u8_name) +
2770 strlen(vs->fmp4_init_filename) + 1;
2772 vs->base_output_dirname = av_malloc(fmp4_init_filename_len);
2773 if (!vs->base_output_dirname) {
2774 ret = AVERROR(ENOMEM);
2778 av_strlcpy(vs->base_output_dirname, vs->m3u8_name,
2779 fmp4_init_filename_len);
2780 p = strrchr(vs->base_output_dirname, '/');
2783 av_strlcat(vs->base_output_dirname, vs->fmp4_init_filename,
2784 fmp4_init_filename_len);
2786 av_strlcpy(vs->base_output_dirname, vs->fmp4_init_filename,
2787 fmp4_init_filename_len);
2792 if (!hls->use_localtime) {
2793 ret = sls_flag_check_duration_size_index(hls);
2798 ret = sls_flag_check_duration_size(hls, vs);
2803 if (vs->has_subtitle) {
2805 if (hls->flags & HLS_SINGLE_FILE)
2806 vtt_pattern = ".vtt";
2807 vtt_basename_size = strlen(vs->m3u8_name) + strlen(vtt_pattern) + 1;
2809 vs->vtt_basename = av_malloc(vtt_basename_size);
2810 if (!vs->vtt_basename) {
2811 ret = AVERROR(ENOMEM);
2814 vs->vtt_m3u8_name = av_malloc(vtt_basename_size);
2815 if (!vs->vtt_m3u8_name ) {
2816 ret = AVERROR(ENOMEM);
2819 av_strlcpy(vs->vtt_basename, vs->m3u8_name, vtt_basename_size);
2820 p = strrchr(vs->vtt_basename, '.');
2824 if ( hls->subtitle_filename ) {
2825 strcpy(vs->vtt_m3u8_name, hls->subtitle_filename);
2826 ret = format_name(vs->vtt_m3u8_name, vtt_basename_size, i);
2830 strcpy(vs->vtt_m3u8_name, vs->vtt_basename);
2831 av_strlcat(vs->vtt_m3u8_name, "_vtt.m3u8", vtt_basename_size);
2833 av_strlcat(vs->vtt_basename, vtt_pattern, vtt_basename_size);
2837 vs->baseurl = av_strdup(hls->baseurl);
2839 ret = AVERROR(ENOMEM);
2844 if ((ret = hls_mux_init(s, vs)) < 0)
2847 if (hls->flags & HLS_APPEND_LIST) {
2848 parse_playlist(s, vs->m3u8_name, vs);
2849 vs->discontinuity = 1;
2850 if (hls->init_time > 0) {
2851 av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
2852 " hls_init_time value will have no effect\n");
2854 hls->recording_time = hls->time * AV_TIME_BASE;
2858 if ((ret = hls_start(s, vs)) < 0)
2864 av_freep(&hls->key_basename);
2865 for (i = 0; i < hls->nb_varstreams && hls->var_streams; i++) {
2866 vs = &hls->var_streams[i];
2867 av_freep(&vs->basename);
2868 av_freep(&vs->vtt_basename);
2869 av_freep(&vs->fmp4_init_filename);
2870 av_freep(&vs->m3u8_name);
2871 av_freep(&vs->vtt_m3u8_name);
2872 av_freep(&vs->streams);
2873 av_freep(&vs->language);
2874 av_freep(&vs->agroup);
2875 av_freep(&vs->ccgroup);
2876 av_freep(&vs->baseurl);
2878 avformat_free_context(vs->avf);
2880 avformat_free_context(vs->vtt_avf);
2882 for (i = 0; i < hls->nb_ccstreams; i++) {
2883 ClosedCaptionsStream *ccs = &hls->cc_streams[i];
2884 av_freep(&ccs->ccgroup);
2885 av_freep(&ccs->instreamid);
2886 av_freep(&ccs->language);
2888 av_freep(&hls->var_streams);
2889 av_freep(&hls->cc_streams);
2890 av_freep(&hls->master_m3u8_url);
2896 #define OFFSET(x) offsetof(HLSContext, x)
2897 #define E AV_OPT_FLAG_ENCODING_PARAM
2898 static const AVOption options[] = {
2899 {"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
2900 {"hls_time", "set segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
2901 {"hls_init_time", "set segment length in seconds at init list", OFFSET(init_time), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0, FLT_MAX, E},
2902 {"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
2903 {"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},
2904 {"hls_ts_options","set hls mpegts list of options for the container format used for hls", OFFSET(format_options_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2905 {"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},
2907 {"hls_wrap", "set number after which the index wraps (will be deprecated)", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
2909 {"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},
2910 {"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2911 {"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2912 {"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
2913 {"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},
2914 {"hls_enc", "enable AES128 encryption support", OFFSET(encrypt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E},
2915 {"hls_enc_key", "hex-coded 16 byte key to encrypt the segments", OFFSET(key), AV_OPT_TYPE_STRING, .flags = E},
2916 {"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},
2917 {"hls_enc_iv", "hex-coded 16 byte initialization vector", OFFSET(iv), AV_OPT_TYPE_STRING, .flags = E},
2918 {"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2919 {"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"},
2920 {"mpegts", "make segment file to mpegts files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, UINT_MAX, E, "segment_type"},
2921 {"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"},
2922 {"hls_fmp4_init_filename", "set fragment mp4 file init filename", OFFSET(fmp4_init_filename), AV_OPT_TYPE_STRING, {.str = "init.mp4"}, 0, 0, E},
2923 {"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
2924 {"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"},
2925 {"temp_file", "write segment to temporary file and rename when complete", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_TEMP_FILE }, 0, UINT_MAX, E, "flags"},
2926 {"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"},
2927 {"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, "flags"},
2928 {"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, "flags"},
2929 {"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, "flags"},
2930 {"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"},
2931 {"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"},
2932 {"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
2933 {"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"},
2934 {"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"},
2935 {"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"},
2936 {"periodic_rekey", "reload keyinfo file periodically for re-keying", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PERIODIC_REKEY }, 0, UINT_MAX, E, "flags"},
2937 {"independent_segments", "add EXT-X-INDEPENDENT-SEGMENTS, whenever applicable", 0, AV_OPT_TYPE_CONST, { .i64 = HLS_INDEPENDENT_SEGMENTS }, 0, UINT_MAX, E, "flags"},
2938 {"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"},
2939 #if FF_API_HLS_USE_LOCALTIME
2940 {"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 },
2942 {"strftime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
2943 #if FF_API_HLS_USE_LOCALTIME
2944 {"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 },
2946 {"strftime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
2947 {"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" },
2948 {"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, "pl_type" },
2949 {"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, "pl_type" },
2950 {"method", "set the HTTP method(default: PUT)", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2951 {"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" },
2952 {"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" },
2953 {"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" },
2954 {"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" },
2955 {"http_user_agent", "override User-Agent field in HTTP header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2956 {"var_stream_map", "Variant stream map string", OFFSET(var_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2957 {"cc_stream_map", "Closed captions stream map string", OFFSET(cc_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2958 {"master_pl_name", "Create HLS master playlist with this name", OFFSET(master_pl_name), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2959 {"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},
2960 {"http_persistent", "Use persistent HTTP connections", OFFSET(http_persistent), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
2961 {"timeout", "set timeout for socket I/O operations", OFFSET(timeout), AV_OPT_TYPE_DURATION, { .i64 = -1 }, -1, INT_MAX, .flags = E },
2962 {"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 },
2966 static const AVClass hls_class = {
2967 .class_name = "hls muxer",
2968 .item_name = av_default_item_name,
2970 .version = LIBAVUTIL_VERSION_INT,
2974 AVOutputFormat ff_hls_muxer = {
2976 .long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
2977 .extensions = "m3u8",
2978 .priv_data_size = sizeof(HLSContext),
2979 .audio_codec = AV_CODEC_ID_AAC,
2980 .video_codec = AV_CODEC_ID_H264,
2981 .subtitle_codec = AV_CODEC_ID_WEBVTT,
2982 .flags = AVFMT_NOFILE | AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_NODIMENSIONS,
2984 .write_header = hls_write_header,
2985 .write_packet = hls_write_packet,
2986 .write_trailer = hls_write_trailer,
2987 .priv_class = &hls_class,