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 double dpp; // duration per packet
132 int64_t video_lastpos;
133 int64_t video_keyframe_pos;
134 int64_t video_keyframe_size;
135 double duration; // last segment duration computed so far, in seconds
136 int64_t start_pos; // last segment starting position
137 int64_t size; // last segment size
139 int discontinuity_set;
141 int reference_stream_index;
143 HLSSegment *segments;
144 HLSSegment *last_segment;
145 HLSSegment *old_segments;
152 double initial_prog_date_time;
153 char current_segment_final_filename_fmt[MAX_URL_SIZE]; // when renaming segments
155 char *fmp4_init_filename;
156 char *base_output_dirname;
159 char codec_attr[128];
160 CodecAttributeStatus attr_status;
161 unsigned int nb_streams;
162 int m3u8_created; /* status of media play-list creation */
163 int is_default; /* default status of audio group */
164 char *language; /* audio lauguage name */
165 char *agroup; /* audio group name */
166 char *ccgroup; /* closed caption group name */
168 char *varname; // variant name
171 typedef struct ClosedCaptionsStream {
172 char *ccgroup; /* closed caption group name */
173 char *instreamid; /* closed captions INSTREAM-ID */
174 char *language; /* closed captions langauge */
175 } ClosedCaptionsStream;
177 typedef struct HLSContext {
178 const AVClass *class; // Class for private options.
179 int64_t start_sequence;
180 uint32_t start_sequence_source_type; // enum StartSequenceSourceType
182 float time; // Set by a private option.
183 float init_time; // Set by a private option.
184 int max_nb_segments; // Set by a private option.
185 int hls_delete_threshold; // Set by a private option.
187 int wrap; // Set by a private option.
189 uint32_t flags; // enum HLSFlags
190 uint32_t pl_type; // enum PlaylistType
191 char *segment_filename;
192 char *fmp4_init_filename;
195 int use_localtime; ///< flag to expand filename with localtime
196 int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
198 int64_t recording_time;
199 int64_t max_seg_size; // every segment file max size
202 char *vtt_format_options_str;
203 char *subtitle_filename;
204 AVDictionary *format_options;
214 char key_file[LINE_BUFFER_SIZE + 1];
215 char key_uri[LINE_BUFFER_SIZE + 1];
216 char key_string[KEYSIZE*2 + 1];
217 char iv_string[KEYSIZE*2 + 1];
218 AVDictionary *vtt_format_options;
223 VariantStream *var_streams;
224 unsigned int nb_varstreams;
225 ClosedCaptionsStream *cc_streams;
226 unsigned int nb_ccstreams;
228 int master_m3u8_created; /* status of master play-list creation */
229 char *master_m3u8_url; /* URL of the master m3u8 file */
230 int version; /* HLS version */
231 char *var_stream_map; /* user specified variant stream map string */
232 char *cc_stream_map; /* user specified closed caption streams map string */
233 char *master_pl_name;
234 unsigned int master_publish_rate;
236 AVIOContext *m3u8_out;
237 AVIOContext *sub_m3u8_out;
239 int ignore_io_errors;
241 int has_default_key; /* has DEFAULT field of var_stream_map */
242 int has_video_m3u8; /* has video stream m3u8 list */
245 static int hlsenc_io_open(AVFormatContext *s, AVIOContext **pb, char *filename,
246 AVDictionary **options)
248 HLSContext *hls = s->priv_data;
249 int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
250 int err = AVERROR_MUXER_NOT_FOUND;
251 if (!*pb || !http_base_proto || !hls->http_persistent) {
252 err = s->io_open(s, pb, filename, AVIO_FLAG_WRITE, options);
253 #if CONFIG_HTTP_PROTOCOL
255 URLContext *http_url_context = ffio_geturlcontext(*pb);
256 av_assert0(http_url_context);
257 err = ff_http_do_new_request(http_url_context, filename);
259 ff_format_io_close(s, pb);
266 static int hlsenc_io_close(AVFormatContext *s, AVIOContext **pb, char *filename)
268 HLSContext *hls = s->priv_data;
269 int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
273 if (!http_base_proto || !hls->http_persistent || hls->key_info_file || hls->encrypt) {
274 ff_format_io_close(s, pb);
275 #if CONFIG_HTTP_PROTOCOL
277 URLContext *http_url_context = ffio_geturlcontext(*pb);
278 av_assert0(http_url_context);
280 ffurl_shutdown(http_url_context, AVIO_FLAG_WRITE);
281 ret = ff_http_get_shutdown_status(http_url_context);
287 static void set_http_options(AVFormatContext *s, AVDictionary **options, HLSContext *c)
289 int http_base_proto = ff_is_http_proto(s->url);
292 av_dict_set(options, "method", c->method, 0);
293 } else if (http_base_proto) {
294 av_dict_set(options, "method", "PUT", 0);
297 av_dict_set(options, "user_agent", c->user_agent, 0);
298 if (c->http_persistent)
299 av_dict_set_int(options, "multiple_requests", 1, 0);
301 av_dict_set_int(options, "timeout", c->timeout, 0);
303 av_dict_set(options, "headers", c->headers, 0);
306 static void write_codec_attr(AVStream *st, VariantStream *vs)
308 int codec_strlen = strlen(vs->codec_attr);
311 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
313 if (vs->attr_status == CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN)
316 if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
317 uint8_t *data = st->codecpar->extradata;
318 if (data && (data[0] | data[1] | data[2]) == 0 && data[3] == 1 && (data[4] & 0x1F) == 7) {
319 snprintf(attr, sizeof(attr),
320 "avc1.%02x%02x%02x", data[5], data[6], data[7]);
324 } else if (st->codecpar->codec_id == AV_CODEC_ID_MP2) {
325 snprintf(attr, sizeof(attr), "mp4a.40.33");
326 } else if (st->codecpar->codec_id == AV_CODEC_ID_MP3) {
327 snprintf(attr, sizeof(attr), "mp4a.40.34");
328 } else if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
329 /* TODO : For HE-AAC, HE-AACv2, the last digit needs to be set to 5 and 29 respectively */
330 snprintf(attr, sizeof(attr), "mp4a.40.2");
331 } else if (st->codecpar->codec_id == AV_CODEC_ID_AC3) {
332 snprintf(attr, sizeof(attr), "ac-3");
333 } else if (st->codecpar->codec_id == AV_CODEC_ID_EAC3) {
334 snprintf(attr, sizeof(attr), "ec-3");
338 // Don't write the same attribute multiple times
339 if (!av_stristr(vs->codec_attr, attr)) {
340 snprintf(vs->codec_attr + codec_strlen,
341 sizeof(vs->codec_attr) - codec_strlen,
342 "%s%s", codec_strlen ? "," : "", attr);
347 vs->codec_attr[0] = '\0';
348 vs->attr_status = CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN;
352 static int replace_str_data_in_filename(char **s, const char *filename, char placeholder, const char *datastring)
361 av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
368 if (c == '%' && *(p+1) == '%') // %%
370 else if (c == '%' && *(p+1) == placeholder) {
371 av_bprintf(&buf, "%s", datastring);
378 if (addchar_count > 0) {
379 av_bprint_append_data(&buf, p, addchar_count);
383 if (!av_bprint_is_complete(&buf)) {
384 av_bprint_finalize(&buf, NULL);
387 if (av_bprint_finalize(&buf, &new_filename) < 0 || !new_filename)
393 static int replace_int_data_in_filename(char **s, const char *filename, char placeholder, int64_t number)
398 int nd, addchar_count;
402 av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
409 if (c == '%' && *(p+1) == '%') // %%
411 else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) {
414 while (av_isdigit(*(p + addchar_count))) {
415 nd = nd * 10 + *(p + addchar_count) - '0';
419 if (*(p + addchar_count) == placeholder) {
420 av_bprintf(&buf, "%0*"PRId64, (number < 0) ? nd : nd++, number);
421 p += (addchar_count + 1);
429 av_bprint_append_data(&buf, p, addchar_count);
432 if (!av_bprint_is_complete(&buf)) {
433 av_bprint_finalize(&buf, NULL);
436 if (av_bprint_finalize(&buf, &new_filename) < 0 || !new_filename)
442 static void write_styp(AVIOContext *pb)
445 ffio_wfourcc(pb, "styp");
446 ffio_wfourcc(pb, "msdh");
447 avio_wb32(pb, 0); /* minor */
448 ffio_wfourcc(pb, "msdh");
449 ffio_wfourcc(pb, "msix");
452 static int flush_dynbuf(VariantStream *vs, int *range_length)
454 AVFormatContext *ctx = vs->avf;
457 return AVERROR(EINVAL);
461 av_write_frame(ctx, NULL);
464 *range_length = avio_close_dyn_buf(ctx->pb, &vs->temp_buffer);
466 avio_write(vs->out, vs->temp_buffer, *range_length);
470 return avio_open_dyn_buf(&ctx->pb);
473 static void reflush_dynbuf(VariantStream *vs, int *range_length)
476 avio_write(vs->out, vs->temp_buffer, *range_length);
480 #define SEPARATOR '\\'
482 #define SEPARATOR '/'
485 static int hls_delete_old_segments(AVFormatContext *s, HLSContext *hls,
489 HLSSegment *segment, *previous_segment = NULL;
490 float playlist_duration = 0.0f;
491 int ret = 0, path_size, sub_path_size;
493 char *dirname = NULL, *sub_path;
494 char *dirname_r = NULL;
495 char *dirname_repl = NULL;
497 char *vtt_dirname = NULL;
498 char *vtt_dirname_r = NULL;
499 AVDictionary *options = NULL;
500 AVIOContext *out = NULL;
501 const char *proto = NULL;
503 segment = vs->segments;
505 playlist_duration += segment->duration;
506 segment = segment->next;
509 segment = vs->old_segments;
512 playlist_duration -= segment->duration;
513 previous_segment = segment;
514 segment = previous_segment->next;
516 if (playlist_duration <= -previous_segment->duration) {
517 previous_segment->next = NULL;
520 if (segment_cnt >= hls->hls_delete_threshold) {
521 previous_segment->next = NULL;
526 if (segment && !hls->use_localtime_mkdir) {
527 dirname_r = hls->segment_filename ? av_strdup(hls->segment_filename): av_strdup(vs->avf->url);
528 dirname = (char*)av_dirname(dirname_r);
531 /* if %v is present in the file's directory
532 * all segment belongs to the same variant, so do it only once before the loop*/
533 if (dirname && av_stristr(dirname, "%v")) {
534 char * dirname_repl = dirname;
536 if (replace_int_data_in_filename(&dirname_repl, dirname, 'v', segment->var_stream_idx) < 1) {
537 ret = AVERROR(EINVAL);
541 if (replace_str_data_in_filename(&dirname_repl, dirname, 'v', vs->varname) < 1) {
542 ret = AVERROR(EINVAL);
547 dirname = dirname_repl;
551 av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n",
553 path_size = (hls->use_localtime_mkdir ? 0 : strlen(dirname)+1) + strlen(segment->filename) + 1;
554 path = av_malloc(path_size);
556 ret = AVERROR(ENOMEM);
560 if (hls->use_localtime_mkdir)
561 av_strlcpy(path, segment->filename, path_size);
562 else { // segment->filename contains basename only
563 snprintf(path, path_size, "%s%c%s", dirname, SEPARATOR, segment->filename);
566 proto = avio_find_protocol_name(s->url);
567 if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
568 av_dict_set(&options, "method", "DELETE", 0);
569 if ((ret = vs->avf->io_open(vs->avf, &out, path, AVIO_FLAG_WRITE, &options)) < 0) {
570 if (hls->ignore_io_errors)
574 ff_format_io_close(vs->avf, &out);
575 } else if (unlink(path) < 0) {
576 av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
577 path, strerror(errno));
580 if ((segment->sub_filename[0] != '\0')) {
581 vtt_dirname_r = av_strdup(vs->vtt_avf->url);
582 vtt_dirname = (char*)av_dirname(vtt_dirname_r);
583 sub_path_size = strlen(segment->sub_filename) + 1 + strlen(vtt_dirname) + 1;
584 sub_path = av_malloc(sub_path_size);
586 ret = AVERROR(ENOMEM);
590 snprintf(sub_path, sub_path_size, "%s%c%s", vtt_dirname, SEPARATOR, segment->sub_filename);
592 av_freep(&vtt_dirname_r);
594 if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
595 av_dict_set(&options, "method", "DELETE", 0);
596 if ((ret = vs->vtt_avf->io_open(vs->vtt_avf, &out, sub_path, AVIO_FLAG_WRITE, &options)) < 0) {
597 if (hls->ignore_io_errors)
602 ff_format_io_close(vs->vtt_avf, &out);
603 } else if (unlink(sub_path) < 0) {
604 av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
605 sub_path, strerror(errno));
610 previous_segment = segment;
611 segment = previous_segment->next;
612 av_freep(&previous_segment);
617 av_freep(&dirname_r);
618 av_freep(&dirname_repl);
619 av_freep(&vtt_dirname_r);
624 static int randomize(uint8_t *buf, int len)
627 gcry_randomize(buf, len, GCRY_VERY_STRONG_RANDOM);
630 if (RAND_bytes(buf, len))
633 return AVERROR(ENOSYS);
635 return AVERROR(EINVAL);
638 static int do_encrypt(AVFormatContext *s, VariantStream *vs)
640 HLSContext *hls = s->priv_data;
644 uint8_t key[KEYSIZE];
645 char * key_basename_source = (hls->master_m3u8_url) ? hls->master_m3u8_url : s->url;
647 len = strlen(key_basename_source) + 4 + 1;
648 hls->key_basename = av_mallocz(len);
649 if (!hls->key_basename)
650 return AVERROR(ENOMEM);
652 av_strlcpy(hls->key_basename, key_basename_source, len);
653 av_strlcat(hls->key_basename, ".key", len);
656 av_strlcpy(hls->key_file, hls->key_url, sizeof(hls->key_file));
657 av_strlcpy(hls->key_uri, hls->key_url, sizeof(hls->key_uri));
659 av_strlcpy(hls->key_file, hls->key_basename, sizeof(hls->key_file));
660 av_strlcpy(hls->key_uri, hls->key_basename, sizeof(hls->key_uri));
663 if (!*hls->iv_string) {
664 uint8_t iv[16] = { 0 };
668 AV_WB64(iv + 8, vs->sequence);
670 memcpy(iv, hls->iv, sizeof(iv));
672 ff_data_to_hex(buf, iv, sizeof(iv), 0);
674 memcpy(hls->iv_string, buf, sizeof(hls->iv_string));
677 if (!*hls->key_uri) {
678 av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
679 return AVERROR(EINVAL);
682 if (!*hls->key_file) {
683 av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
684 return AVERROR(EINVAL);
687 if (!*hls->key_string) {
689 if ((ret = randomize(key, sizeof(key))) < 0) {
690 av_log(s, AV_LOG_ERROR, "Cannot generate a strong random key\n");
694 memcpy(key, hls->key, sizeof(key));
697 ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
698 if ((ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_WRITE, NULL)) < 0)
700 avio_seek(pb, 0, SEEK_CUR);
701 avio_write(pb, key, KEYSIZE);
708 static int hls_encryption_start(AVFormatContext *s)
710 HLSContext *hls = s->priv_data;
713 uint8_t key[KEYSIZE];
715 if ((ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, NULL)) < 0) {
716 av_log(hls, AV_LOG_ERROR,
717 "error opening key info file %s\n", hls->key_info_file);
721 ff_get_line(pb, hls->key_uri, sizeof(hls->key_uri));
722 hls->key_uri[strcspn(hls->key_uri, "\r\n")] = '\0';
724 ff_get_line(pb, hls->key_file, sizeof(hls->key_file));
725 hls->key_file[strcspn(hls->key_file, "\r\n")] = '\0';
727 ff_get_line(pb, hls->iv_string, sizeof(hls->iv_string));
728 hls->iv_string[strcspn(hls->iv_string, "\r\n")] = '\0';
730 ff_format_io_close(s, &pb);
732 if (!*hls->key_uri) {
733 av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
734 return AVERROR(EINVAL);
737 if (!*hls->key_file) {
738 av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
739 return AVERROR(EINVAL);
742 if ((ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_READ, NULL)) < 0) {
743 av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", hls->key_file);
747 ret = avio_read(pb, key, sizeof(key));
748 ff_format_io_close(s, &pb);
749 if (ret != sizeof(key)) {
750 av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", hls->key_file);
751 if (ret >= 0 || ret == AVERROR_EOF)
752 ret = AVERROR(EINVAL);
755 ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
760 static int hls_mux_init(AVFormatContext *s, VariantStream *vs)
762 AVDictionary *options = NULL;
763 HLSContext *hls = s->priv_data;
765 AVFormatContext *vtt_oc = NULL;
766 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
769 ret = avformat_alloc_output_context2(&vs->avf, vs->oformat, NULL, NULL);
774 oc->url = av_strdup("");
776 return AVERROR(ENOMEM);
778 oc->oformat = vs->oformat;
779 oc->interrupt_callback = s->interrupt_callback;
780 oc->max_delay = s->max_delay;
781 oc->opaque = s->opaque;
782 oc->io_open = s->io_open;
783 oc->io_close = s->io_close;
784 oc->strict_std_compliance = s->strict_std_compliance;
785 av_dict_copy(&oc->metadata, s->metadata, 0);
787 if (vs->vtt_oformat) {
788 ret = avformat_alloc_output_context2(&vs->vtt_avf, vs->vtt_oformat, NULL, NULL);
791 vtt_oc = vs->vtt_avf;
792 vtt_oc->oformat = vs->vtt_oformat;
793 av_dict_copy(&vtt_oc->metadata, s->metadata, 0);
796 for (i = 0; i < vs->nb_streams; i++) {
798 AVFormatContext *loc;
799 if (vs->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
804 if (!(st = avformat_new_stream(loc, NULL)))
805 return AVERROR(ENOMEM);
806 avcodec_parameters_copy(st->codecpar, vs->streams[i]->codecpar);
807 if (!oc->oformat->codec_tag ||
808 av_codec_get_id (oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_tag) == st->codecpar->codec_id ||
809 av_codec_get_tag(oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_id) <= 0) {
810 st->codecpar->codec_tag = vs->streams[i]->codecpar->codec_tag;
812 st->codecpar->codec_tag = 0;
815 st->sample_aspect_ratio = vs->streams[i]->sample_aspect_ratio;
816 st->time_base = vs->streams[i]->time_base;
817 av_dict_copy(&st->metadata, vs->streams[i]->metadata, 0);
820 vs->packets_written = 1;
824 if (hls->segment_type == SEGMENT_TYPE_FMP4 && hls->max_seg_size > 0) {
825 if (hls->http_persistent > 0) {
826 //TODO: Support fragment fmp4 for http persistent in HLS muxer.
827 av_log(s, AV_LOG_WARNING, "http persistent mode is currently unsupported for fragment mp4 in the HLS muxer.\n");
829 if (hls->max_seg_size > 0) {
830 av_log(s, AV_LOG_WARNING, "Multi-file byterange mode is currently unsupported in the HLS muxer.\n");
831 return AVERROR_PATCHWELCOME;
835 vs->packets_written = 0;
836 vs->init_range_length = 0;
838 if ((ret = avio_open_dyn_buf(&oc->pb)) < 0)
841 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
842 set_http_options(s, &options, hls);
843 if (byterange_mode) {
844 ret = hlsenc_io_open(s, &vs->out, vs->basename, &options);
846 ret = hlsenc_io_open(s, &vs->out, vs->base_output_dirname, &options);
848 av_dict_free(&options);
851 av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", vs->fmp4_init_filename);
855 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
856 int remaining_options;
858 av_dict_copy(&options, hls->format_options, 0);
859 av_dict_set(&options, "fflags", "-autobsf", 0);
860 av_dict_set(&options, "movflags", "+frag_custom+dash+delay_moov", AV_DICT_APPEND);
861 ret = avformat_init_output(oc, &options);
862 remaining_options = av_dict_count(options);
863 av_dict_free(&options);
866 if (remaining_options) {
867 av_log(s, AV_LOG_ERROR, "Some of the provided format options are not recognized\n");
868 return AVERROR(EINVAL);
875 static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename)
878 if (!av_strcasecmp(segment->filename,filename))
880 segment = segment->next;
882 return (HLSSegment *) NULL;
885 static int sls_flags_filename_process(struct AVFormatContext *s, HLSContext *hls,
886 VariantStream *vs, HLSSegment *en,
887 double duration, int64_t pos, int64_t size)
889 if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
890 strlen(vs->current_segment_final_filename_fmt)) {
891 char * new_url = av_strdup(vs->current_segment_final_filename_fmt);
893 return AVERROR(ENOMEM);
895 ff_format_set_url(vs->avf, new_url);
896 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
897 char *filename = NULL;
898 if (replace_int_data_in_filename(&filename, vs->avf->url, 's', pos + size) < 1) {
899 av_log(hls, AV_LOG_ERROR,
900 "Invalid second level segment filename template '%s', "
901 "you can try to remove second_level_segment_size flag\n",
904 return AVERROR(EINVAL);
906 ff_format_set_url(vs->avf, filename);
908 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
909 char *filename = NULL;
910 if (replace_int_data_in_filename(&filename, vs->avf->url,
911 't', (int64_t)round(duration * HLS_MICROSECOND_UNIT)) < 1) {
912 av_log(hls, AV_LOG_ERROR,
913 "Invalid second level segment filename template '%s', "
914 "you can try to remove second_level_segment_time flag\n",
917 return AVERROR(EINVAL);
919 ff_format_set_url(vs->avf, filename);
925 static int sls_flag_check_duration_size_index(HLSContext *hls)
929 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
930 av_log(hls, AV_LOG_ERROR,
931 "second_level_segment_duration hls_flag requires strftime to be true\n");
932 ret = AVERROR(EINVAL);
934 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
935 av_log(hls, AV_LOG_ERROR,
936 "second_level_segment_size hls_flag requires strfime to be true\n");
937 ret = AVERROR(EINVAL);
939 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
940 av_log(hls, AV_LOG_ERROR,
941 "second_level_segment_index hls_flag requires strftime to be true\n");
942 ret = AVERROR(EINVAL);
948 static int sls_flag_check_duration_size(HLSContext *hls, VariantStream *vs)
950 const char *proto = avio_find_protocol_name(vs->basename);
951 int segment_renaming_ok = proto && !strcmp(proto, "file");
954 if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) {
955 av_log(hls, AV_LOG_ERROR,
956 "second_level_segment_duration hls_flag works only with file protocol segment names\n");
957 ret = AVERROR(EINVAL);
959 if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) {
960 av_log(hls, AV_LOG_ERROR,
961 "second_level_segment_size hls_flag works only with file protocol segment names\n");
962 ret = AVERROR(EINVAL);
968 static void sls_flag_file_rename(HLSContext *hls, VariantStream *vs, char *old_filename) {
969 if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
970 strlen(vs->current_segment_final_filename_fmt)) {
971 ff_rename(old_filename, vs->avf->url, hls);
975 static int sls_flag_use_localtime_filename(AVFormatContext *oc, HLSContext *c, VariantStream *vs)
977 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
978 char *filename = NULL;
979 if (replace_int_data_in_filename(&filename,
981 oc->url, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
983 oc->url, 'd', vs->sequence) < 1) {
985 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
986 "you can try to remove second_level_segment_index flag\n",
989 return AVERROR(EINVAL);
991 ff_format_set_url(oc, filename);
993 if (c->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) {
994 av_strlcpy(vs->current_segment_final_filename_fmt, oc->url,
995 sizeof(vs->current_segment_final_filename_fmt));
996 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
997 char *filename = NULL;
998 if (replace_int_data_in_filename(&filename, oc->url, 's', 0) < 1) {
999 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
1000 "you can try to remove second_level_segment_size flag\n",
1002 av_freep(&filename);
1003 return AVERROR(EINVAL);
1005 ff_format_set_url(oc, filename);
1007 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
1008 char *filename = NULL;
1009 if (replace_int_data_in_filename(&filename, oc->url, 't', 0) < 1) {
1010 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
1011 "you can try to remove second_level_segment_time flag\n",
1013 av_freep(&filename);
1014 return AVERROR(EINVAL);
1016 ff_format_set_url(oc, filename);
1022 /* Create a new segment and append it to the segment list */
1023 static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls,
1024 VariantStream *vs, double duration, int64_t pos,
1027 HLSSegment *en = av_malloc(sizeof(*en));
1028 const char *filename;
1029 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1033 return AVERROR(ENOMEM);
1035 en->var_stream_idx = vs->var_stream_idx;
1036 ret = sls_flags_filename_process(s, hls, vs, en, duration, pos, size);
1042 filename = av_basename(vs->avf->url);
1044 if (hls->use_localtime_mkdir) {
1045 filename = vs->avf->url;
1047 if ((find_segment_by_filename(vs->segments, filename) || find_segment_by_filename(vs->old_segments, filename))
1048 && !byterange_mode) {
1049 av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename);
1051 av_strlcpy(en->filename, filename, sizeof(en->filename));
1053 if (vs->has_subtitle)
1054 av_strlcpy(en->sub_filename, av_basename(vs->vtt_avf->url), sizeof(en->sub_filename));
1056 en->sub_filename[0] = '\0';
1058 en->duration = duration;
1061 en->keyframe_pos = vs->video_keyframe_pos;
1062 en->keyframe_size = vs->video_keyframe_size;
1066 if (vs->discontinuity) {
1068 vs->discontinuity = 0;
1071 if (hls->key_info_file || hls->encrypt) {
1072 av_strlcpy(en->key_uri, hls->key_uri, sizeof(en->key_uri));
1073 av_strlcpy(en->iv_string, hls->iv_string, sizeof(en->iv_string));
1079 vs->last_segment->next = en;
1081 vs->last_segment = en;
1083 // EVENT or VOD playlists imply sliding window cannot be used
1084 if (hls->pl_type != PLAYLIST_TYPE_NONE)
1085 hls->max_nb_segments = 0;
1087 if (hls->max_nb_segments && vs->nb_entries >= hls->max_nb_segments) {
1089 vs->initial_prog_date_time += en->duration;
1090 vs->segments = en->next;
1091 if (en && hls->flags & HLS_DELETE_SEGMENTS &&
1093 !(hls->flags & HLS_SINGLE_FILE || hls->wrap)) {
1095 !(hls->flags & HLS_SINGLE_FILE)) {
1097 en->next = vs->old_segments;
1098 vs->old_segments = en;
1099 if ((ret = hls_delete_old_segments(s, hls, vs)) < 0)
1106 if (hls->max_seg_size > 0) {
1114 static int parse_playlist(AVFormatContext *s, const char *url, VariantStream *vs)
1116 HLSContext *hls = s->priv_data;
1118 int ret = 0, is_segment = 0;
1119 int64_t new_start_pos;
1120 char line[MAX_URL_SIZE];
1124 if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ,
1125 &s->interrupt_callback, NULL,
1126 s->protocol_whitelist, s->protocol_blacklist)) < 0)
1129 ff_get_chomp_line(in, line, sizeof(line));
1130 if (strcmp(line, "#EXTM3U")) {
1131 ret = AVERROR_INVALIDDATA;
1135 vs->discontinuity = 0;
1136 while (!avio_feof(in)) {
1137 ff_get_chomp_line(in, line, sizeof(line));
1138 if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
1139 int64_t tmp_sequence = strtoll(ptr, NULL, 10);
1140 if (tmp_sequence < vs->sequence)
1141 av_log(hls, AV_LOG_VERBOSE,
1142 "Found playlist sequence number was smaller """
1143 "than specified start sequence number: %"PRId64" < %"PRId64", "
1144 "omitting\n", tmp_sequence, hls->start_sequence);
1146 av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence);
1147 vs->sequence = tmp_sequence;
1149 } else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) {
1151 vs->discontinuity = 1;
1152 } else if (av_strstart(line, "#EXTINF:", &ptr)) {
1154 vs->duration = atof(ptr);
1155 } else if (av_stristart(line, "#EXT-X-KEY:", &ptr)) {
1156 ptr = av_stristr(line, "URI=\"");
1158 ptr += strlen("URI=\"");
1159 end = av_stristr(ptr, ",");
1161 av_strlcpy(hls->key_uri, ptr, end - ptr);
1163 av_strlcpy(hls->key_uri, ptr, sizeof(hls->key_uri));
1167 ptr = av_stristr(line, "IV=0x");
1169 ptr += strlen("IV=0x");
1170 end = av_stristr(ptr, ",");
1172 av_strlcpy(hls->iv_string, ptr, end - ptr);
1174 av_strlcpy(hls->iv_string, ptr, sizeof(hls->iv_string));
1178 } else if (av_strstart(line, "#", NULL)) {
1180 } else if (line[0]) {
1182 char *new_file = av_strdup(line);
1184 ret = AVERROR(ENOMEM);
1187 ff_format_set_url(vs->avf, new_file);
1189 new_start_pos = avio_tell(vs->avf->pb);
1190 vs->size = new_start_pos - vs->start_pos;
1191 vs->initial_prog_date_time -= vs->duration; // this is a previously existing segment
1192 ret = hls_append_segment(s, hls, vs, vs->duration, vs->start_pos, vs->size);
1195 vs->start_pos = new_start_pos;
1205 static void hls_free_segments(HLSSegment *p)
1216 static int hls_rename_temp_file(AVFormatContext *s, AVFormatContext *oc)
1218 size_t len = strlen(oc->url);
1219 char *final_filename = av_strdup(oc->url);
1222 if (!final_filename)
1223 return AVERROR(ENOMEM);
1224 final_filename[len-4] = '\0';
1225 ret = ff_rename(oc->url, final_filename, s);
1226 oc->url[len-4] = '\0';
1227 av_freep(&final_filename);
1231 static const char* get_relative_url(const char *master_url, const char *media_url)
1233 const char *p = strrchr(master_url, '/');
1234 size_t base_len = 0;
1236 if (!p) p = strrchr(master_url, '\\');
1239 base_len = p - master_url;
1240 if (av_strncasecmp(master_url, media_url, base_len)) {
1241 av_log(NULL, AV_LOG_WARNING, "Unable to find relative url\n");
1246 return media_url + base_len;
1249 static int64_t get_stream_bit_rate(AVStream *stream)
1251 AVCPBProperties *props = (AVCPBProperties*)av_stream_get_side_data(
1253 AV_PKT_DATA_CPB_PROPERTIES,
1257 if (stream->codecpar->bit_rate)
1258 return stream->codecpar->bit_rate;
1260 return props->max_bitrate;
1265 static int create_master_playlist(AVFormatContext *s,
1266 VariantStream * const input_vs)
1268 HLSContext *hls = s->priv_data;
1269 VariantStream *vs, *temp_vs;
1270 AVStream *vid_st, *aud_st;
1271 AVDictionary *options = NULL;
1274 const char *m3u8_rel_name = NULL;
1276 ClosedCaptionsStream *ccs;
1277 const char *proto = avio_find_protocol_name(hls->master_m3u8_url);
1278 int is_file_proto = proto && !strcmp(proto, "file");
1279 int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || hls->master_publish_rate);
1280 char temp_filename[MAX_URL_SIZE];
1282 input_vs->m3u8_created = 1;
1283 if (!hls->master_m3u8_created) {
1284 /* For the first time, wait until all the media playlists are created */
1285 for (i = 0; i < hls->nb_varstreams; i++)
1286 if (!hls->var_streams[i].m3u8_created)
1289 /* Keep publishing the master playlist at the configured rate */
1290 if (&hls->var_streams[0] != input_vs || !hls->master_publish_rate ||
1291 input_vs->number % hls->master_publish_rate)
1295 set_http_options(s, &options, hls);
1296 snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", hls->master_m3u8_url);
1297 ret = hlsenc_io_open(s, &hls->m3u8_out, temp_filename, &options);
1298 av_dict_free(&options);
1300 av_log(s, AV_LOG_ERROR, "Failed to open master play list file '%s'\n",
1305 ff_hls_write_playlist_version(hls->m3u8_out, hls->version);
1307 for (i = 0; i < hls->nb_ccstreams; i++) {
1308 ccs = &(hls->cc_streams[i]);
1309 avio_printf(hls->m3u8_out, "#EXT-X-MEDIA:TYPE=CLOSED-CAPTIONS");
1310 avio_printf(hls->m3u8_out, ",GROUP-ID=\"%s\"", ccs->ccgroup);
1311 avio_printf(hls->m3u8_out, ",NAME=\"%s\"", ccs->instreamid);
1313 avio_printf(hls->m3u8_out, ",LANGUAGE=\"%s\"", ccs->language);
1314 avio_printf(hls->m3u8_out, ",INSTREAM-ID=\"%s\"\n", ccs->instreamid);
1317 /* For audio only variant streams add #EXT-X-MEDIA tag with attributes*/
1318 for (i = 0; i < hls->nb_varstreams; i++) {
1319 vs = &(hls->var_streams[i]);
1321 if (vs->has_video || vs->has_subtitle || !vs->agroup)
1324 m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
1325 if (!m3u8_rel_name) {
1326 av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
1330 ff_hls_write_audio_rendition(hls->m3u8_out, vs->agroup, m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
1333 /* For variant streams with video add #EXT-X-STREAM-INF tag with attributes*/
1334 for (i = 0; i < hls->nb_varstreams; i++) {
1335 vs = &(hls->var_streams[i]);
1337 m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
1338 if (!m3u8_rel_name) {
1339 av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
1345 for (j = 0; j < vs->nb_streams; j++) {
1346 if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
1347 vid_st = vs->streams[j];
1348 else if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
1349 aud_st = vs->streams[j];
1352 if (!vid_st && !aud_st) {
1353 av_log(s, AV_LOG_WARNING, "Media stream not found\n");
1358 * Traverse through the list of audio only rendition streams and find
1359 * the rendition which has highest bitrate in the same audio group
1362 for (j = 0; j < hls->nb_varstreams; j++) {
1363 temp_vs = &(hls->var_streams[j]);
1364 if (!temp_vs->has_video && !temp_vs->has_subtitle &&
1366 !av_strcasecmp(temp_vs->agroup, vs->agroup)) {
1368 aud_st = temp_vs->streams[0];
1369 if (temp_vs->streams[0]->codecpar->bit_rate >
1370 aud_st->codecpar->bit_rate)
1371 aud_st = temp_vs->streams[0];
1378 bandwidth += get_stream_bit_rate(vid_st);
1380 bandwidth += get_stream_bit_rate(aud_st);
1381 bandwidth += bandwidth / 10;
1384 if (vid_st && vs->ccgroup) {
1385 /* check if this group name is available in the cc map string */
1386 for (j = 0; j < hls->nb_ccstreams; j++) {
1387 ccs = &(hls->cc_streams[j]);
1388 if (!av_strcasecmp(ccs->ccgroup, vs->ccgroup)) {
1389 ccgroup = vs->ccgroup;
1393 if (j == hls->nb_ccstreams)
1394 av_log(s, AV_LOG_WARNING, "mapping ccgroup %s not found\n",
1398 if (!hls->has_default_key || !hls->has_video_m3u8) {
1399 ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
1400 aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup);
1403 ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
1404 aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup);
1410 hls->master_m3u8_created = 1;
1411 hlsenc_io_close(s, &hls->m3u8_out, temp_filename);
1413 ff_rename(temp_filename, hls->master_m3u8_url, s);
1418 static int hls_window(AVFormatContext *s, int last, VariantStream *vs)
1420 HLSContext *hls = s->priv_data;
1422 int target_duration = 0;
1424 char temp_filename[MAX_URL_SIZE];
1425 char temp_vtt_filename[MAX_URL_SIZE];
1426 int64_t sequence = FFMAX(hls->start_sequence, vs->sequence - vs->nb_entries);
1427 const char *proto = avio_find_protocol_name(vs->m3u8_name);
1428 int is_file_proto = proto && !strcmp(proto, "file");
1429 int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || !(hls->pl_type == PLAYLIST_TYPE_VOD));
1430 static unsigned warned_non_file;
1431 char *key_uri = NULL;
1432 char *iv_string = NULL;
1433 AVDictionary *options = NULL;
1434 double prog_date_time = vs->initial_prog_date_time;
1435 double *prog_date_time_p = (hls->flags & HLS_PROGRAM_DATE_TIME) ? &prog_date_time : NULL;
1436 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1439 if (byterange_mode) {
1444 if (hls->flags & HLS_INDEPENDENT_SEGMENTS) {
1448 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1452 if (!is_file_proto && (hls->flags & HLS_TEMP_FILE) && !warned_non_file++)
1453 av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
1455 set_http_options(s, &options, hls);
1456 snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", vs->m3u8_name);
1457 if ((ret = hlsenc_io_open(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename, &options)) < 0) {
1458 if (hls->ignore_io_errors)
1463 for (en = vs->segments; en; en = en->next) {
1464 if (target_duration <= en->duration)
1465 target_duration = lrint(en->duration);
1468 vs->discontinuity_set = 0;
1469 ff_hls_write_playlist_header(byterange_mode ? hls->m3u8_out : vs->out, hls->version, hls->allowcache,
1470 target_duration, sequence, hls->pl_type, hls->flags & HLS_I_FRAMES_ONLY);
1472 if ((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && vs->discontinuity_set==0 ) {
1473 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-DISCONTINUITY\n");
1474 vs->discontinuity_set = 1;
1476 if (vs->has_video && (hls->flags & HLS_INDEPENDENT_SEGMENTS)) {
1477 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-INDEPENDENT-SEGMENTS\n");
1479 for (en = vs->segments; en; en = en->next) {
1480 if ((hls->encrypt || hls->key_info_file) && (!key_uri || strcmp(en->key_uri, key_uri) ||
1481 av_strcasecmp(en->iv_string, iv_string))) {
1482 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri);
1484 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, ",IV=0x%s", en->iv_string);
1485 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "\n");
1486 key_uri = en->key_uri;
1487 iv_string = en->iv_string;
1490 if ((hls->segment_type == SEGMENT_TYPE_FMP4) && (en == vs->segments)) {
1491 ff_hls_write_init_file(byterange_mode ? hls->m3u8_out : vs->out, (hls->flags & HLS_SINGLE_FILE) ? en->filename : vs->fmp4_init_filename,
1492 hls->flags & HLS_SINGLE_FILE, vs->init_range_length, 0);
1495 ret = ff_hls_write_file_entry(byterange_mode ? hls->m3u8_out : vs->out, en->discont, byterange_mode,
1496 en->duration, hls->flags & HLS_ROUND_DURATIONS,
1497 en->size, en->pos, vs->baseurl,
1498 en->filename, prog_date_time_p, en->keyframe_size, en->keyframe_pos, hls->flags & HLS_I_FRAMES_ONLY);
1500 av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
1504 if (last && (hls->flags & HLS_OMIT_ENDLIST)==0)
1505 ff_hls_write_end_list(byterange_mode ? hls->m3u8_out : vs->out);
1507 if (vs->vtt_m3u8_name) {
1508 snprintf(temp_vtt_filename, sizeof(temp_vtt_filename), use_temp_file ? "%s.tmp" : "%s", vs->vtt_m3u8_name);
1509 if ((ret = hlsenc_io_open(s, &hls->sub_m3u8_out, temp_vtt_filename, &options)) < 0) {
1510 if (hls->ignore_io_errors)
1514 ff_hls_write_playlist_header(hls->sub_m3u8_out, hls->version, hls->allowcache,
1515 target_duration, sequence, PLAYLIST_TYPE_NONE, 0);
1516 for (en = vs->segments; en; en = en->next) {
1517 ret = ff_hls_write_file_entry(hls->sub_m3u8_out, 0, byterange_mode,
1518 en->duration, 0, en->size, en->pos,
1519 vs->baseurl, en->sub_filename, NULL, 0, 0, 0);
1521 av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
1526 ff_hls_write_end_list(hls->sub_m3u8_out);
1531 av_dict_free(&options);
1532 ret = hlsenc_io_close(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename);
1536 hlsenc_io_close(s, &hls->sub_m3u8_out, vs->vtt_m3u8_name);
1537 if (use_temp_file) {
1538 ff_rename(temp_filename, vs->m3u8_name, s);
1539 if (vs->vtt_m3u8_name)
1540 ff_rename(temp_vtt_filename, vs->vtt_m3u8_name, s);
1542 if (ret >= 0 && hls->master_pl_name)
1543 if (create_master_playlist(s, vs) < 0)
1544 av_log(s, AV_LOG_WARNING, "Master playlist creation failed\n");
1549 static int hls_start(AVFormatContext *s, VariantStream *vs)
1551 HLSContext *c = s->priv_data;
1552 AVFormatContext *oc = vs->avf;
1553 AVFormatContext *vtt_oc = vs->vtt_avf;
1554 AVDictionary *options = NULL;
1555 const char *proto = NULL;
1556 int use_temp_file = 0;
1557 char iv_string[KEYSIZE*2 + 1];
1560 if (c->flags & HLS_SINGLE_FILE) {
1561 char *new_name = av_strdup(vs->basename);
1563 return AVERROR(ENOMEM);
1564 ff_format_set_url(oc, new_name);
1565 if (vs->vtt_basename) {
1566 new_name = av_strdup(vs->vtt_basename);
1568 return AVERROR(ENOMEM);
1569 ff_format_set_url(vtt_oc, new_name);
1571 } else if (c->max_seg_size > 0) {
1572 char *filename = NULL;
1573 if (replace_int_data_in_filename(&filename,
1575 vs->basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1577 vs->basename, 'd', vs->sequence) < 1) {
1579 av_freep(&filename);
1580 av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -strftime 1 with it\n", vs->basename);
1581 return AVERROR(EINVAL);
1583 ff_format_set_url(oc, filename);
1585 if (c->use_localtime) {
1587 struct tm *tm, tmpbuf;
1588 int bufsize = strlen(vs->basename) + MAX_URL_SIZE;
1589 char *buf = av_mallocz(bufsize);
1591 return AVERROR(ENOMEM);
1593 tm = localtime_r(&now0, &tmpbuf);
1594 ff_format_set_url(oc, buf);
1595 if (!strftime(oc->url, bufsize, vs->basename, tm)) {
1596 av_log(oc, AV_LOG_ERROR, "Could not get segment filename with strftime\n");
1597 return AVERROR(EINVAL);
1600 err = sls_flag_use_localtime_filename(oc, c, vs);
1602 return AVERROR(ENOMEM);
1605 if (c->use_localtime_mkdir) {
1607 char *fn_copy = av_strdup(oc->url);
1608 dir = av_dirname(fn_copy);
1609 if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
1610 av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir);
1612 return AVERROR(errno);
1617 char *filename = NULL;
1618 if (replace_int_data_in_filename(&filename,
1620 vs->basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1622 vs->basename, 'd', vs->sequence) < 1) {
1624 av_freep(&filename);
1625 av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -strftime 1 with it\n", vs->basename);
1626 return AVERROR(EINVAL);
1628 ff_format_set_url(oc, filename);
1630 if ( vs->vtt_basename) {
1631 char *filename = NULL;
1632 if (replace_int_data_in_filename(&filename,
1634 vs->vtt_basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1636 vs->vtt_basename, 'd', vs->sequence) < 1) {
1638 av_freep(&filename);
1639 av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", vs->vtt_basename);
1640 return AVERROR(EINVAL);
1642 ff_format_set_url(vtt_oc, filename);
1647 proto = avio_find_protocol_name(oc->url);
1648 use_temp_file = proto && !strcmp(proto, "file") && (c->flags & HLS_TEMP_FILE);
1650 if (use_temp_file) {
1651 char *new_name = av_asprintf("%s.tmp", oc->url);
1653 return AVERROR(ENOMEM);
1654 ff_format_set_url(oc, new_name);
1657 if (c->key_info_file || c->encrypt) {
1658 if (c->segment_type == SEGMENT_TYPE_FMP4) {
1659 av_log(s, AV_LOG_ERROR, "Encrypted fmp4 not yet supported\n");
1660 return AVERROR_PATCHWELCOME;
1663 if (c->key_info_file && c->encrypt) {
1664 av_log(s, AV_LOG_WARNING, "Cannot use both -hls_key_info_file and -hls_enc,"
1665 " ignoring -hls_enc\n");
1668 if (!c->encrypt_started || (c->flags & HLS_PERIODIC_REKEY)) {
1669 if (c->key_info_file) {
1670 if ((err = hls_encryption_start(s)) < 0)
1673 if ((err = do_encrypt(s, vs)) < 0)
1676 c->encrypt_started = 1;
1678 err = av_strlcpy(iv_string, c->iv_string, sizeof(iv_string));
1680 snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, vs->sequence);
1681 memset(c->iv_string, 0, sizeof(c->iv_string));
1682 memcpy(c->iv_string, iv_string, sizeof(iv_string));
1685 if (c->segment_type != SEGMENT_TYPE_FMP4) {
1686 /* We only require one PAT/PMT per segment. */
1687 if (oc->oformat->priv_class && oc->priv_data) {
1690 snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1);
1692 av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
1693 av_opt_set(oc->priv_data, "sdt_period", period, 0);
1694 av_opt_set(oc->priv_data, "pat_period", period, 0);
1696 if (c->flags & HLS_SINGLE_FILE) {
1697 set_http_options(s, &options, c);
1698 if ((err = hlsenc_io_open(s, &vs->out, oc->url, &options)) < 0) {
1699 if (c->ignore_io_errors)
1705 if (vs->vtt_basename) {
1706 set_http_options(s, &options, c);
1707 if ((err = hlsenc_io_open(s, &vtt_oc->pb, vtt_oc->url, &options)) < 0) {
1708 if (c->ignore_io_errors)
1713 av_dict_free(&options);
1715 if (vs->vtt_basename) {
1716 err = avformat_write_header(vtt_oc,NULL);
1723 av_dict_free(&options);
1728 static const char * get_default_pattern_localtime_fmt(AVFormatContext *s)
1731 time_t t = time(NULL);
1732 struct tm *p, tmbuf;
1733 HLSContext *hls = s->priv_data;
1735 p = localtime_r(&t, &tmbuf);
1736 // no %s support when strftime returned error or left format string unchanged
1737 // also no %s support on MSVC, which invokes the invalid parameter handler on unsupported format strings, instead of returning an error
1738 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1739 return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.m4s" : "-%s.m4s";
1741 return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts";
1744 static int append_postfix(char *name, int name_buf_len, int i)
1747 char extension[10] = {'\0'};
1749 p = strrchr(name, '.');
1751 av_strlcpy(extension, p, sizeof(extension));
1755 snprintf(name + strlen(name), name_buf_len - strlen(name), POSTFIX_PATTERN, i);
1757 if (strlen(extension))
1758 av_strlcat(name, extension, name_buf_len);
1763 static int validate_name(int nb_vs, const char *fn)
1765 const char *filename, *subdir_name;
1766 char *fn_dup = NULL;
1770 ret = AVERROR(EINVAL);
1774 fn_dup = av_strdup(fn);
1775 filename = av_basename(fn);
1776 subdir_name = av_dirname(fn_dup);
1778 if (nb_vs > 1 && !av_stristr(filename, "%v") && !av_stristr(subdir_name, "%v")) {
1779 av_log(NULL, AV_LOG_ERROR, "More than 1 variant streams are present, %%v is expected "
1780 "either in the filename or in the sub-directory name of file %s\n", fn);
1781 ret = AVERROR(EINVAL);
1785 if (av_stristr(filename, "%v") && av_stristr(subdir_name, "%v")) {
1786 av_log(NULL, AV_LOG_ERROR, "%%v is expected either in the filename or "
1787 "in the sub-directory name of file %s, but only in one of them\n", fn);
1788 ret = AVERROR(EINVAL);
1797 static int format_name(const char *buf, char **s, int index, const char *varname)
1799 const char *proto, *dir;
1800 char *orig_buf_dup = NULL, *mod_buf_dup = NULL;
1803 orig_buf_dup = av_strdup(buf);
1804 if (!orig_buf_dup) {
1805 ret = AVERROR(ENOMEM);
1809 if (!av_stristr(buf, "%v")) {
1815 if (replace_int_data_in_filename(s, orig_buf_dup, 'v', index) < 1) {
1816 ret = AVERROR(EINVAL);
1820 if (replace_str_data_in_filename(s, orig_buf_dup, 'v', varname) < 1) {
1821 ret = AVERROR(EINVAL);
1826 proto = avio_find_protocol_name(orig_buf_dup);
1827 dir = av_dirname(orig_buf_dup);
1829 /* if %v is present in the file's directory, create sub-directory */
1830 if (av_stristr(dir, "%v") && proto && !strcmp(proto, "file")) {
1831 mod_buf_dup = av_strdup(*s);
1832 dir = av_dirname(mod_buf_dup);
1833 if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
1834 ret = AVERROR(errno);
1840 av_freep(&orig_buf_dup);
1841 av_freep(&mod_buf_dup);
1845 static int get_nth_codec_stream_index(AVFormatContext *s,
1846 enum AVMediaType codec_type,
1849 unsigned int stream_index, cnt;
1850 if (stream_id < 0 || stream_id > s->nb_streams - 1)
1853 for (stream_index = 0; stream_index < s->nb_streams; stream_index++) {
1854 if (s->streams[stream_index]->codecpar->codec_type != codec_type)
1856 if (cnt == stream_id)
1857 return stream_index;
1863 static int parse_variant_stream_mapstring(AVFormatContext *s)
1865 HLSContext *hls = s->priv_data;
1867 int stream_index, i, j;
1868 enum AVMediaType codec_type;
1869 int nb_varstreams = 0, nb_streams;
1870 char *p, *q, *saveptr1, *saveptr2, *varstr, *keyval;
1874 * Expected format for var_stream_map string is as below:
1876 * "a:0,agroup:a0,default:1,language:ENG a:1,agroup:a1,default:0 v:0,agroup:a0 v:1,agroup:a1"
1877 * This string specifies how to group the audio, video and subtitle streams
1878 * into different variant streams. The variant stream groups are separated
1881 * a:, v:, s: are keys to specify audio, video and subtitle streams
1882 * respectively. Allowed values are 0 to 9 digits (limited just based on
1885 * agroup: is key to specify audio group. A string can be given as value.
1887 p = av_strdup(hls->var_stream_map);
1889 return AVERROR(ENOMEM);
1892 while (av_strtok(q, " \t", &saveptr1)) {
1898 hls->var_streams = av_mallocz(sizeof(*hls->var_streams) * nb_varstreams);
1899 if (!hls->var_streams)
1900 return AVERROR(ENOMEM);
1901 hls->nb_varstreams = nb_varstreams;
1903 p = hls->var_stream_map;
1905 while (varstr = av_strtok(p, " \t", &saveptr1)) {
1908 if (nb_varstreams < hls->nb_varstreams) {
1909 vs = &(hls->var_streams[nb_varstreams]);
1910 vs->var_stream_idx = nb_varstreams;
1914 return AVERROR(EINVAL);
1917 while (q < varstr + strlen(varstr)) {
1918 if (!av_strncasecmp(q, "a:", 2) || !av_strncasecmp(q, "v:", 2) ||
1919 !av_strncasecmp(q, "s:", 2))
1923 vs->streams = av_mallocz(sizeof(AVStream *) * vs->nb_streams);
1925 return AVERROR(ENOMEM);
1928 while (keyval = av_strtok(varstr, ",", &saveptr2)) {
1930 if (av_strstart(keyval, "language:", &val)) {
1931 av_free(vs->language);
1932 vs->language = av_strdup(val);
1934 return AVERROR(ENOMEM);
1936 } else if (av_strstart(keyval, "default:", &val)) {
1937 vs->is_default = (!av_strncasecmp(val, "YES", strlen("YES")) ||
1938 (!av_strncasecmp(val, "1", strlen("1"))));
1939 hls->has_default_key = 1;
1941 } else if (av_strstart(keyval, "name:", &val)) {
1942 av_free(vs->varname);
1943 vs->varname = av_strdup(val);
1945 return AVERROR(ENOMEM);
1947 } else if (av_strstart(keyval, "agroup:", &val)) {
1948 av_free(vs->agroup);
1949 vs->agroup = av_strdup(val);
1951 return AVERROR(ENOMEM);
1953 } else if (av_strstart(keyval, "ccgroup:", &val)) {
1954 av_free(vs->ccgroup);
1955 vs->ccgroup = av_strdup(val);
1957 return AVERROR(ENOMEM);
1959 } else if (av_strstart(keyval, "v:", &val)) {
1960 codec_type = AVMEDIA_TYPE_VIDEO;
1961 hls->has_video_m3u8 = 1;
1962 } else if (av_strstart(keyval, "a:", &val)) {
1963 codec_type = AVMEDIA_TYPE_AUDIO;
1964 } else if (av_strstart(keyval, "s:", &val)) {
1965 codec_type = AVMEDIA_TYPE_SUBTITLE;
1967 av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
1968 return AVERROR(EINVAL);
1972 if (av_isdigit(*val))
1973 stream_index = get_nth_codec_stream_index (s, codec_type,
1976 if (stream_index >= 0 && nb_streams < vs->nb_streams) {
1977 for (i = 0; nb_streams > 0 && i < nb_streams; i++) {
1978 if (vs->streams[i] == s->streams[stream_index]) {
1979 av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once inside "
1980 "variant definition #%d\n", nb_varstreams - 1);
1981 return AVERROR(EINVAL);
1984 for (j = 0; nb_varstreams > 1 && j < nb_varstreams - 1; j++) {
1985 for (i = 0; i < hls->var_streams[j].nb_streams; i++) {
1986 if (hls->var_streams[j].streams[i] == s->streams[stream_index]) {
1987 av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once "
1988 "in two different variant definitions #%d and #%d\n",
1989 j, nb_varstreams - 1);
1990 return AVERROR(EINVAL);
1994 vs->streams[nb_streams++] = s->streams[stream_index];
1996 av_log(s, AV_LOG_ERROR, "Unable to map stream at %s\n", keyval);
1997 return AVERROR(EINVAL);
2001 av_log(s, AV_LOG_DEBUG, "Number of variant streams %d\n",
2002 hls->nb_varstreams);
2007 static int parse_cc_stream_mapstring(AVFormatContext *s)
2009 HLSContext *hls = s->priv_data;
2010 int nb_ccstreams = 0;
2011 char *p, *q, *ccstr, *keyval;
2012 char *saveptr1 = NULL, *saveptr2 = NULL;
2014 ClosedCaptionsStream *ccs;
2016 p = av_strdup(hls->cc_stream_map);
2018 return AVERROR(ENOMEM);
2021 while (av_strtok(q, " \t", &saveptr1)) {
2027 hls->cc_streams = av_mallocz(sizeof(*hls->cc_streams) * nb_ccstreams);
2028 if (!hls->cc_streams)
2029 return AVERROR(ENOMEM);
2030 hls->nb_ccstreams = nb_ccstreams;
2032 p = hls->cc_stream_map;
2034 while (ccstr = av_strtok(p, " \t", &saveptr1)) {
2037 if (nb_ccstreams < hls->nb_ccstreams)
2038 ccs = &(hls->cc_streams[nb_ccstreams++]);
2040 return AVERROR(EINVAL);
2042 while (keyval = av_strtok(ccstr, ",", &saveptr2)) {
2045 if (av_strstart(keyval, "ccgroup:", &val)) {
2046 av_free(ccs->ccgroup);
2047 ccs->ccgroup = av_strdup(val);
2049 return AVERROR(ENOMEM);
2050 } else if (av_strstart(keyval, "instreamid:", &val)) {
2051 av_free(ccs->instreamid);
2052 ccs->instreamid = av_strdup(val);
2053 if (!ccs->instreamid)
2054 return AVERROR(ENOMEM);
2055 } else if (av_strstart(keyval, "language:", &val)) {
2056 av_free(ccs->language);
2057 ccs->language = av_strdup(val);
2059 return AVERROR(ENOMEM);
2061 av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
2062 return AVERROR(EINVAL);
2066 if (!ccs->ccgroup || !ccs->instreamid) {
2067 av_log(s, AV_LOG_ERROR, "Insufficient parameters in cc stream map string\n");
2068 return AVERROR(EINVAL);
2071 if (av_strstart(ccs->instreamid, "CC", &val)) {
2072 if (atoi(val) < 1 || atoi(val) > 4) {
2073 av_log(s, AV_LOG_ERROR, "Invalid instream ID CC index %d in %s, range 1-4\n",
2074 atoi(val), ccs->instreamid);
2075 return AVERROR(EINVAL);
2077 } else if (av_strstart(ccs->instreamid, "SERVICE", &val)) {
2078 if (atoi(val) < 1 || atoi(val) > 63) {
2079 av_log(s, AV_LOG_ERROR, "Invalid instream ID SERVICE index %d in %s, range 1-63 \n",
2080 atoi(val), ccs->instreamid);
2081 return AVERROR(EINVAL);
2084 av_log(s, AV_LOG_ERROR, "Invalid instream ID %s, supported are CCn or SERVICEn\n",
2086 return AVERROR(EINVAL);
2093 static int update_variant_stream_info(AVFormatContext *s)
2095 HLSContext *hls = s->priv_data;
2099 if (hls->cc_stream_map) {
2100 ret = parse_cc_stream_mapstring(s);
2105 if (hls->var_stream_map) {
2106 return parse_variant_stream_mapstring(s);
2108 //By default, a single variant stream with all the codec streams is created
2109 hls->var_streams = av_mallocz(sizeof(*hls->var_streams));
2110 if (!hls->var_streams)
2111 return AVERROR(ENOMEM);
2112 hls->nb_varstreams = 1;
2114 hls->var_streams[0].var_stream_idx = 0;
2115 hls->var_streams[0].nb_streams = s->nb_streams;
2116 hls->var_streams[0].streams = av_mallocz(sizeof(AVStream *) *
2117 hls->var_streams[0].nb_streams);
2118 if (!hls->var_streams[0].streams) {
2119 return AVERROR(ENOMEM);
2122 //by default, the first available ccgroup is mapped to the variant stream
2123 if (hls->nb_ccstreams) {
2124 hls->var_streams[0].ccgroup = av_strdup(hls->cc_streams[0].ccgroup);
2125 if (!hls->var_streams[0].ccgroup) {
2126 return AVERROR(ENOMEM);
2130 for (i = 0; i < s->nb_streams; i++)
2131 hls->var_streams[0].streams[i] = s->streams[i];
2136 static int update_master_pl_info(AVFormatContext *s)
2138 HLSContext *hls = s->priv_data;
2140 char *fn1= NULL, *fn2 = NULL;
2143 fn1 = av_strdup(s->url);
2144 dir = av_dirname(fn1);
2147 * if output file's directory has %v, variants are created in sub-directories
2148 * then master is created at the sub-directories level
2150 if (dir && av_stristr(av_basename(dir), "%v")) {
2151 fn2 = av_strdup(dir);
2152 dir = av_dirname(fn2);
2155 if (dir && strcmp(dir, "."))
2156 hls->master_m3u8_url = av_append_path_component(dir, hls->master_pl_name);
2158 hls->master_m3u8_url = av_strdup(hls->master_pl_name);
2160 if (!hls->master_m3u8_url) {
2161 ret = AVERROR(ENOMEM);
2172 static int hls_write_header(AVFormatContext *s)
2174 HLSContext *hls = s->priv_data;
2176 VariantStream *vs = NULL;
2178 for (i = 0; i < hls->nb_varstreams; i++) {
2179 vs = &hls->var_streams[i];
2181 ret = avformat_write_header(vs->avf, NULL);
2184 //av_assert0(s->nb_streams == hls->avf->nb_streams);
2185 for (j = 0; j < vs->nb_streams; j++) {
2187 AVStream *outer_st = vs->streams[j];
2189 if (hls->max_seg_size > 0) {
2190 if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
2191 (outer_st->codecpar->bit_rate > hls->max_seg_size)) {
2192 av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, "
2193 "(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.",
2194 outer_st->codecpar->bit_rate, hls->max_seg_size);
2198 if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
2199 inner_st = vs->avf->streams[j];
2200 else if (vs->vtt_avf)
2201 inner_st = vs->vtt_avf->streams[0];
2203 /* We have a subtitle stream, when the user does not want one */
2207 avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
2208 write_codec_attr(outer_st, vs);
2211 /* Update the Codec Attr string for the mapped audio groups */
2212 if (vs->has_video && vs->agroup) {
2213 for (j = 0; j < hls->nb_varstreams; j++) {
2214 VariantStream *vs_agroup = &(hls->var_streams[j]);
2215 if (!vs_agroup->has_video && !vs_agroup->has_subtitle &&
2216 vs_agroup->agroup &&
2217 !av_strcasecmp(vs_agroup->agroup, vs->agroup)) {
2218 write_codec_attr(vs_agroup->streams[0], vs);
2227 static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
2229 HLSContext *hls = s->priv_data;
2230 AVFormatContext *oc = NULL;
2231 AVStream *st = s->streams[pkt->stream_index];
2232 int64_t end_pts = 0;
2234 int ret = 0, can_split = 1, i, j;
2235 int stream_index = 0;
2236 int range_length = 0;
2237 const char *proto = NULL;
2238 int use_temp_file = 0;
2239 uint8_t *buffer = NULL;
2240 VariantStream *vs = NULL;
2241 char *old_filename = NULL;
2243 for (i = 0; i < hls->nb_varstreams; i++) {
2244 vs = &hls->var_streams[i];
2245 for (j = 0; j < vs->nb_streams; j++) {
2246 if (vs->streams[j] == st) {
2247 if ( st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE ) {
2263 av_log(s, AV_LOG_ERROR, "Unable to find mapping variant stream\n");
2264 return AVERROR(ENOMEM);
2267 end_pts = hls->recording_time * vs->number;
2269 if (vs->sequence - vs->nb_entries > hls->start_sequence && hls->init_time > 0) {
2270 /* reset end_pts, hls->recording_time at end of the init hls list */
2271 int64_t init_list_dur = hls->init_time * vs->nb_entries * AV_TIME_BASE;
2272 int64_t after_init_list_dur = (vs->sequence - hls->start_sequence - vs->nb_entries ) * (hls->time * AV_TIME_BASE);
2273 hls->recording_time = hls->time * AV_TIME_BASE;
2274 end_pts = init_list_dur + after_init_list_dur ;
2277 if (vs->start_pts == AV_NOPTS_VALUE) {
2278 vs->start_pts = pkt->pts;
2281 if (vs->has_video) {
2282 can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
2283 ((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME));
2284 is_ref_pkt = (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->stream_index == vs->reference_stream_index);
2286 if (pkt->pts == AV_NOPTS_VALUE)
2287 is_ref_pkt = can_split = 0;
2290 if (vs->end_pts == AV_NOPTS_VALUE)
2291 vs->end_pts = pkt->pts;
2292 if (vs->new_start) {
2294 vs->duration = (double)(pkt->pts - vs->end_pts)
2295 * st->time_base.num / st->time_base.den;
2296 vs->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den;
2298 if (pkt->duration) {
2299 vs->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den;
2301 av_log(s, AV_LOG_WARNING, "pkt->duration = 0, maybe the hls segment duration will not precise\n");
2302 vs->duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den;
2308 if (vs->packets_written && can_split && av_compare_ts(pkt->pts - vs->start_pts, st->time_base,
2309 end_pts, AV_TIME_BASE_Q) >= 0) {
2310 int64_t new_start_pos;
2311 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
2313 av_write_frame(oc, NULL); /* Flush any buffered data */
2314 new_start_pos = avio_tell(oc->pb);
2315 vs->size = new_start_pos - vs->start_pos;
2317 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2318 if (!vs->init_range_length) {
2319 range_length = avio_close_dyn_buf(oc->pb, &buffer);
2320 avio_write(vs->out, buffer, range_length);
2322 vs->init_range_length = range_length;
2323 avio_open_dyn_buf(&oc->pb);
2324 vs->packets_written = 0;
2325 vs->start_pos = range_length;
2326 if (!byterange_mode) {
2327 hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
2331 if (!byterange_mode) {
2333 hlsenc_io_close(s, &vs->vtt_avf->pb, vs->vtt_avf->url);
2338 proto = avio_find_protocol_name(oc->url);
2339 use_temp_file = proto && !strcmp(proto, "file") && (hls->flags & HLS_TEMP_FILE);
2342 if (hls->flags & HLS_SINGLE_FILE) {
2343 ret = flush_dynbuf(vs, &range_length);
2344 av_freep(&vs->temp_buffer);
2348 vs->size = range_length;
2350 if ((hls->max_seg_size > 0 && (vs->size >= hls->max_seg_size)) || !byterange_mode) {
2351 AVDictionary *options = NULL;
2352 char *filename = NULL;
2353 if (hls->key_info_file || hls->encrypt) {
2354 av_dict_set(&options, "encryption_key", hls->key_string, 0);
2355 av_dict_set(&options, "encryption_iv", hls->iv_string, 0);
2356 filename = av_asprintf("crypto:%s", oc->url);
2358 filename = av_asprintf("%s", oc->url);
2361 av_dict_free(&options);
2362 return AVERROR(ENOMEM);
2365 // look to rename the asset name
2367 av_dict_set(&options, "mpegts_flags", "resend_headers", 0);
2369 set_http_options(s, &options, hls);
2371 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2373 av_log(s, hls->ignore_io_errors ? AV_LOG_WARNING : AV_LOG_ERROR,
2374 "Failed to open file '%s'\n", filename);
2375 av_dict_free(&options);
2376 return hls->ignore_io_errors ? 0 : ret;
2378 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2379 write_styp(vs->out);
2381 ret = flush_dynbuf(vs, &range_length);
2383 av_dict_free(&options);
2386 ret = hlsenc_io_close(s, &vs->out, filename);
2388 av_log(s, AV_LOG_WARNING, "upload segment failed,"
2389 " will retry with a new http session.\n");
2390 ff_format_io_close(s, &vs->out);
2391 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2392 reflush_dynbuf(vs, &range_length);
2393 ret = hlsenc_io_close(s, &vs->out, filename);
2395 av_dict_free(&options);
2396 av_freep(&vs->temp_buffer);
2397 av_freep(&filename);
2401 if (use_temp_file && !(hls->flags & HLS_SINGLE_FILE)) {
2402 hls_rename_temp_file(s, oc);
2405 old_filename = av_strdup(oc->url);
2406 if (!old_filename) {
2407 return AVERROR(ENOMEM);
2410 if (vs->start_pos || hls->segment_type != SEGMENT_TYPE_FMP4) {
2411 ret = hls_append_segment(s, hls, vs, vs->duration, vs->start_pos, vs->size);
2412 vs->end_pts = pkt->pts;
2415 av_freep(&old_filename);
2420 // if we're building a VOD playlist, skip writing the manifest multiple times, and just wait until the end
2421 if (hls->pl_type != PLAYLIST_TYPE_VOD) {
2422 if ((ret = hls_window(s, 0, vs)) < 0) {
2423 av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
2424 ff_format_io_close(s, &vs->out);
2426 if ((ret = hls_window(s, 0, vs)) < 0) {
2427 av_freep(&old_filename);
2433 if (hls->flags & HLS_SINGLE_FILE) {
2435 vs->start_pos += vs->size;
2436 } else if (hls->max_seg_size > 0) {
2437 vs->start_pos = new_start_pos;
2438 if (vs->size >= hls->max_seg_size) {
2440 sls_flag_file_rename(hls, vs, old_filename);
2441 ret = hls_start(s, vs);
2443 /* When split segment by byte, the duration is short than hls_time,
2444 * so it is not enough one segment duration as hls_time, */
2449 vs->start_pos = new_start_pos;
2450 sls_flag_file_rename(hls, vs, old_filename);
2451 ret = hls_start(s, vs);
2453 av_freep(&old_filename);
2461 vs->packets_written++;
2463 ret = ff_write_chained(oc, stream_index, pkt, s, 0);
2464 vs->video_keyframe_size += pkt->size;
2465 if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->flags & AV_PKT_FLAG_KEY)) {
2466 vs->video_keyframe_size = avio_tell(oc->pb);
2468 vs->video_keyframe_pos = avio_tell(vs->out);
2470 if (hls->ignore_io_errors)
2477 static void hls_free_variant_streams(struct HLSContext *hls)
2480 AVFormatContext *vtt_oc = NULL;
2481 VariantStream *vs = NULL;
2483 for (i = 0; i < hls->nb_varstreams; i++) {
2484 vs = &hls->var_streams[i];
2485 vtt_oc = vs->vtt_avf;
2487 av_freep(&vs->basename);
2488 av_freep(&vs->base_output_dirname);
2489 av_freep(&vs->fmp4_init_filename);
2491 av_freep(&vs->vtt_basename);
2492 av_freep(&vs->vtt_m3u8_name);
2493 avformat_free_context(vtt_oc);
2496 avformat_free_context(vs->avf);
2498 hls_free_segments(vs->segments);
2499 hls_free_segments(vs->old_segments);
2500 av_freep(&vs->m3u8_name);
2501 av_freep(&vs->streams);
2502 av_freep(&vs->agroup);
2503 av_freep(&vs->language);
2504 av_freep(&vs->ccgroup);
2505 av_freep(&vs->baseurl);
2506 av_freep(&vs->varname);
2510 static int hls_write_trailer(struct AVFormatContext *s)
2512 HLSContext *hls = s->priv_data;
2513 AVFormatContext *oc = NULL;
2514 AVFormatContext *vtt_oc = NULL;
2515 char *old_filename = NULL;
2516 const char *proto = NULL;
2517 int use_temp_file = 0;
2520 VariantStream *vs = NULL;
2521 AVDictionary *options = NULL;
2522 int range_length, byterange_mode;
2524 for (i = 0; i < hls->nb_varstreams; i++) {
2525 char *filename = NULL;
2526 vs = &hls->var_streams[i];
2528 vtt_oc = vs->vtt_avf;
2529 old_filename = av_strdup(oc->url);
2532 if (!old_filename) {
2533 return AVERROR(ENOMEM);
2535 if (hls->key_info_file || hls->encrypt) {
2536 av_dict_set(&options, "encryption_key", hls->key_string, 0);
2537 av_dict_set(&options, "encryption_iv", hls->iv_string, 0);
2538 filename = av_asprintf("crypto:%s", oc->url);
2540 filename = av_asprintf("%s", oc->url);
2543 av_freep(&old_filename);
2544 return AVERROR(ENOMEM);
2547 if ( hls->segment_type == SEGMENT_TYPE_FMP4) {
2548 int range_length = 0;
2549 if (!vs->init_range_length) {
2550 uint8_t *buffer = NULL;
2551 av_write_frame(oc, NULL); /* Flush any buffered data */
2553 range_length = avio_close_dyn_buf(oc->pb, &buffer);
2554 avio_write(vs->out, buffer, range_length);
2556 vs->init_range_length = range_length;
2557 avio_open_dyn_buf(&oc->pb);
2558 vs->packets_written = 0;
2559 vs->start_pos = range_length;
2560 byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
2561 if (!byterange_mode) {
2562 ff_format_io_close(s, &vs->out);
2563 hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
2567 if (!(hls->flags & HLS_SINGLE_FILE)) {
2568 set_http_options(s, &options, hls);
2569 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2571 av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
2574 if (hls->segment_type == SEGMENT_TYPE_FMP4)
2575 write_styp(vs->out);
2577 ret = flush_dynbuf(vs, &range_length);
2581 vs->size = range_length;
2582 hlsenc_io_close(s, &vs->out, filename);
2583 ret = hlsenc_io_close(s, &vs->out, filename);
2585 av_log(s, AV_LOG_WARNING, "upload segment failed, will retry with a new http session.\n");
2586 ff_format_io_close(s, &vs->out);
2587 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2589 av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
2592 reflush_dynbuf(vs, &range_length);
2593 ret = hlsenc_io_close(s, &vs->out, filename);
2595 av_log(s, AV_LOG_WARNING, "Failed to upload file '%s' at the end.\n", oc->url);
2597 av_freep(&vs->temp_buffer);
2600 av_freep(&filename);
2601 av_write_trailer(oc);
2603 proto = avio_find_protocol_name(oc->url);
2604 use_temp_file = proto && !strcmp(proto, "file") && (hls->flags & HLS_TEMP_FILE);
2607 // rename that segment from .tmp to the real one
2608 if (use_temp_file && !(hls->flags & HLS_SINGLE_FILE)) {
2609 hls_rename_temp_file(s, oc);
2610 av_freep(&old_filename);
2611 old_filename = av_strdup(oc->url);
2613 if (!old_filename) {
2614 return AVERROR(ENOMEM);
2618 /* after av_write_trailer, then duration + 1 duration per packet */
2619 hls_append_segment(s, hls, vs, vs->duration + vs->dpp, vs->start_pos, vs->size);
2621 sls_flag_file_rename(hls, vs, old_filename);
2625 av_write_trailer(vtt_oc);
2626 vs->size = avio_tell(vs->vtt_avf->pb) - vs->start_pos;
2627 ff_format_io_close(s, &vtt_oc->pb);
2629 ret = hls_window(s, 1, vs);
2631 av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
2632 ff_format_io_close(s, &vs->out);
2633 hls_window(s, 1, vs);
2635 ffio_free_dyn_buf(&oc->pb);
2637 av_free(old_filename);
2640 hls_free_variant_streams(hls);
2642 for (i = 0; i < hls->nb_ccstreams; i++) {
2643 ClosedCaptionsStream *ccs = &hls->cc_streams[i];
2644 av_freep(&ccs->ccgroup);
2645 av_freep(&ccs->instreamid);
2646 av_freep(&ccs->language);
2649 ff_format_io_close(s, &hls->m3u8_out);
2650 ff_format_io_close(s, &hls->sub_m3u8_out);
2651 av_freep(&hls->key_basename);
2652 av_freep(&hls->var_streams);
2653 av_freep(&hls->cc_streams);
2654 av_freep(&hls->master_m3u8_url);
2659 static int hls_init(AVFormatContext *s)
2664 HLSContext *hls = s->priv_data;
2665 const char *pattern = "%d.ts";
2666 VariantStream *vs = NULL;
2667 int basename_size = 0;
2668 const char *pattern_localtime_fmt = get_default_pattern_localtime_fmt(s);
2669 const char *vtt_pattern = "%d.vtt";
2671 int vtt_basename_size = 0;
2672 int http_base_proto = ff_is_http_proto(s->url);
2673 int fmp4_init_filename_len = strlen(hls->fmp4_init_filename) + 1;
2675 hls->has_default_key = 0;
2676 hls->has_video_m3u8 = 0;
2677 ret = update_variant_stream_info(s);
2679 av_log(s, AV_LOG_ERROR, "Variant stream info update failed with status %x\n",
2683 //TODO: Updates needed to encryption functionality with periodic re-key when more than one variant streams are present
2684 if (hls->nb_varstreams > 1 && hls->flags & HLS_PERIODIC_REKEY) {
2685 ret = AVERROR(EINVAL);
2686 av_log(s, AV_LOG_ERROR, "Periodic re-key not supported when more than one variant streams are present\n");
2690 if (!hls->method && http_base_proto) {
2691 av_log(hls, AV_LOG_WARNING, "No HTTP method set, hls muxer defaulting to method PUT.\n");
2694 ret = validate_name(hls->nb_varstreams, s->url);
2698 if (hls->segment_filename) {
2699 ret = validate_name(hls->nb_varstreams, hls->segment_filename);
2704 if (av_strcasecmp(hls->fmp4_init_filename, "init.mp4")) {
2705 ret = validate_name(hls->nb_varstreams, hls->fmp4_init_filename);
2710 if (hls->subtitle_filename) {
2711 ret = validate_name(hls->nb_varstreams, hls->subtitle_filename);
2716 if (hls->master_pl_name) {
2717 ret = update_master_pl_info(s);
2719 av_log(s, AV_LOG_ERROR, "Master stream info update failed with status %x\n",
2725 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2728 if ((hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) ||
2729 (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME)) {
2730 time_t t = time(NULL); // we will need it in either case
2731 if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) {
2732 hls->start_sequence = (int64_t)t;
2733 } else if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME) {
2735 struct tm *p, tmbuf;
2736 if (!(p = localtime_r(&t, &tmbuf)))
2737 return AVERROR(errno);
2738 if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p))
2739 return AVERROR(ENOMEM);
2740 hls->start_sequence = strtoll(b, NULL, 10);
2742 av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
2745 hls->recording_time = (hls->init_time ? hls->init_time : hls->time) * AV_TIME_BASE;
2746 for (i = 0; i < hls->nb_varstreams; i++) {
2747 vs = &hls->var_streams[i];
2749 ret = format_name(s->url, &vs->m3u8_name, i, vs->varname);
2753 vs->sequence = hls->start_sequence;
2754 vs->start_pts = AV_NOPTS_VALUE;
2755 vs->end_pts = AV_NOPTS_VALUE;
2756 vs->current_segment_final_filename_fmt[0] = '\0';
2758 if (hls->flags & HLS_SPLIT_BY_TIME && hls->flags & HLS_INDEPENDENT_SEGMENTS) {
2759 // Independent segments cannot be guaranteed when splitting by time
2760 hls->flags &= ~HLS_INDEPENDENT_SEGMENTS;
2761 av_log(s, AV_LOG_WARNING,
2762 "'split_by_time' and 'independent_segments' cannot be enabled together. "
2763 "Disabling 'independent_segments' flag\n");
2766 if (hls->flags & HLS_PROGRAM_DATE_TIME) {
2769 vs->initial_prog_date_time = now0;
2772 for (j = 0; j < vs->nb_streams; j++) {
2773 vs->has_video += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO;
2774 /* Get one video stream to reference for split segments
2775 * so use the first video stream index. */
2776 if ((vs->has_video == 1) && (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)) {
2777 vs->reference_stream_index = vs->streams[j]->index;
2779 vs->has_subtitle += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE;
2782 if (vs->has_video > 1)
2783 av_log(s, AV_LOG_WARNING, "More than a single video stream present, expect issues decoding it.\n");
2784 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2785 vs->oformat = av_guess_format("mp4", NULL, NULL);
2787 vs->oformat = av_guess_format("mpegts", NULL, NULL);
2791 ret = AVERROR_MUXER_NOT_FOUND;
2795 if (vs->has_subtitle) {
2796 vs->vtt_oformat = av_guess_format("webvtt", NULL, NULL);
2797 if (!vs->vtt_oformat) {
2798 ret = AVERROR_MUXER_NOT_FOUND;
2802 if (hls->segment_filename) {
2803 ret = format_name(hls->segment_filename, &vs->basename, i, vs->varname);
2807 if (hls->flags & HLS_SINGLE_FILE) {
2808 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2815 if (hls->use_localtime) {
2816 basename_size = strlen(vs->m3u8_name) + strlen(pattern_localtime_fmt) + 1;
2818 basename_size = strlen(vs->m3u8_name) + strlen(pattern) + 1;
2821 vs->basename = av_malloc(basename_size);
2822 if (!vs->basename) {
2823 ret = AVERROR(ENOMEM);
2827 av_strlcpy(vs->basename, vs->m3u8_name, basename_size);
2829 p = strrchr(vs->basename, '.');
2832 if (hls->use_localtime) {
2833 av_strlcat(vs->basename, pattern_localtime_fmt, basename_size);
2835 av_strlcat(vs->basename, pattern, basename_size);
2839 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2840 if (hls->nb_varstreams > 1)
2841 fmp4_init_filename_len += strlen(POSTFIX_PATTERN);
2842 if (hls->flags & HLS_SINGLE_FILE) {
2843 vs->fmp4_init_filename = av_strdup(vs->basename);
2844 if (!vs->fmp4_init_filename) {
2845 ret = AVERROR(ENOMEM);
2849 vs->fmp4_init_filename = av_malloc(fmp4_init_filename_len);
2850 if (!vs->fmp4_init_filename ) {
2851 ret = AVERROR(ENOMEM);
2854 av_strlcpy(vs->fmp4_init_filename, hls->fmp4_init_filename,
2855 fmp4_init_filename_len);
2856 if (hls->nb_varstreams > 1) {
2857 if (av_stristr(vs->fmp4_init_filename, "%v")) {
2858 av_freep(&vs->fmp4_init_filename);
2859 format_name(hls->fmp4_init_filename, &vs->fmp4_init_filename, i, vs->varname);
2861 ret = append_postfix(vs->fmp4_init_filename, fmp4_init_filename_len, i);
2867 fmp4_init_filename_len = strlen(vs->m3u8_name) +
2868 strlen(vs->fmp4_init_filename) + 1;
2870 vs->base_output_dirname = av_malloc(fmp4_init_filename_len);
2871 if (!vs->base_output_dirname) {
2872 ret = AVERROR(ENOMEM);
2876 av_strlcpy(vs->base_output_dirname, vs->m3u8_name,
2877 fmp4_init_filename_len);
2878 p = strrchr(vs->base_output_dirname, '/');
2881 av_strlcat(vs->base_output_dirname, vs->fmp4_init_filename,
2882 fmp4_init_filename_len);
2884 av_strlcpy(vs->base_output_dirname, vs->fmp4_init_filename,
2885 fmp4_init_filename_len);
2890 ret = hls->use_localtime ? sls_flag_check_duration_size(hls, vs) : sls_flag_check_duration_size_index(hls);
2894 if (vs->has_subtitle) {
2896 if (hls->flags & HLS_SINGLE_FILE)
2897 vtt_pattern = ".vtt";
2898 vtt_basename_size = strlen(vs->m3u8_name) + strlen(vtt_pattern) + 1;
2900 vs->vtt_basename = av_malloc(vtt_basename_size);
2901 if (!vs->vtt_basename) {
2902 ret = AVERROR(ENOMEM);
2905 av_strlcpy(vs->vtt_basename, vs->m3u8_name, vtt_basename_size);
2906 p = strrchr(vs->vtt_basename, '.');
2910 if ( hls->subtitle_filename ) {
2911 ret = format_name(hls->subtitle_filename, &vs->vtt_m3u8_name, i, vs->varname);
2915 vs->vtt_m3u8_name = av_malloc(vtt_basename_size);
2916 if (!vs->vtt_m3u8_name) {
2917 ret = AVERROR(ENOMEM);
2920 strcpy(vs->vtt_m3u8_name, vs->vtt_basename);
2921 av_strlcat(vs->vtt_m3u8_name, "_vtt.m3u8", vtt_basename_size);
2923 av_strlcat(vs->vtt_basename, vtt_pattern, vtt_basename_size);
2927 vs->baseurl = av_strdup(hls->baseurl);
2929 ret = AVERROR(ENOMEM);
2934 if ((ret = hls_mux_init(s, vs)) < 0)
2937 if (hls->flags & HLS_APPEND_LIST) {
2938 parse_playlist(s, vs->m3u8_name, vs);
2939 vs->discontinuity = 1;
2940 if (hls->init_time > 0) {
2941 av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
2942 " hls_init_time value will have no effect\n");
2944 hls->recording_time = hls->time * AV_TIME_BASE;
2948 if ((ret = hls_start(s, vs)) < 0)
2954 hls_free_variant_streams(hls);
2955 for (i = 0; i < hls->nb_ccstreams; i++) {
2956 ClosedCaptionsStream *ccs = &hls->cc_streams[i];
2957 av_freep(&ccs->ccgroup);
2958 av_freep(&ccs->instreamid);
2959 av_freep(&ccs->language);
2961 av_freep(&hls->key_basename);
2962 av_freep(&hls->var_streams);
2963 av_freep(&hls->cc_streams);
2964 av_freep(&hls->master_m3u8_url);
2970 #define OFFSET(x) offsetof(HLSContext, x)
2971 #define E AV_OPT_FLAG_ENCODING_PARAM
2972 static const AVOption options[] = {
2973 {"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
2974 {"hls_time", "set segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
2975 {"hls_init_time", "set segment length in seconds at init list", OFFSET(init_time), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0, FLT_MAX, E},
2976 {"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
2977 {"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},
2978 {"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},
2979 {"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},
2981 {"hls_wrap", "set number after which the index wraps (will be deprecated)", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
2983 {"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},
2984 {"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2985 {"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2986 {"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
2987 {"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},
2988 {"hls_enc", "enable AES128 encryption support", OFFSET(encrypt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E},
2989 {"hls_enc_key", "hex-coded 16 byte key to encrypt the segments", OFFSET(key), AV_OPT_TYPE_STRING, .flags = E},
2990 {"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},
2991 {"hls_enc_iv", "hex-coded 16 byte initialization vector", OFFSET(iv), AV_OPT_TYPE_STRING, .flags = E},
2992 {"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2993 {"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"},
2994 {"mpegts", "make segment file to mpegts files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, UINT_MAX, E, "segment_type"},
2995 {"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"},
2996 {"hls_fmp4_init_filename", "set fragment mp4 file init filename", OFFSET(fmp4_init_filename), AV_OPT_TYPE_STRING, {.str = "init.mp4"}, 0, 0, E},
2997 {"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
2998 {"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"},
2999 {"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"},
3000 {"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"},
3001 {"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, "flags"},
3002 {"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, "flags"},
3003 {"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, "flags"},
3004 {"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"},
3005 {"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"},
3006 {"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
3007 {"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"},
3008 {"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"},
3009 {"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"},
3010 {"periodic_rekey", "reload keyinfo file periodically for re-keying", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PERIODIC_REKEY }, 0, UINT_MAX, E, "flags"},
3011 {"independent_segments", "add EXT-X-INDEPENDENT-SEGMENTS, whenever applicable", 0, AV_OPT_TYPE_CONST, { .i64 = HLS_INDEPENDENT_SEGMENTS }, 0, UINT_MAX, E, "flags"},
3012 {"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"},
3013 #if FF_API_HLS_USE_LOCALTIME
3014 {"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 },
3016 {"strftime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
3017 #if FF_API_HLS_USE_LOCALTIME
3018 {"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 },
3020 {"strftime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
3021 {"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" },
3022 {"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, "pl_type" },
3023 {"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, "pl_type" },
3024 {"method", "set the HTTP method(default: PUT)", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3025 {"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" },
3026 {"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" },
3027 {"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" },
3028 {"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" },
3029 {"http_user_agent", "override User-Agent field in HTTP header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3030 {"var_stream_map", "Variant stream map string", OFFSET(var_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3031 {"cc_stream_map", "Closed captions stream map string", OFFSET(cc_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3032 {"master_pl_name", "Create HLS master playlist with this name", OFFSET(master_pl_name), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3033 {"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},
3034 {"http_persistent", "Use persistent HTTP connections", OFFSET(http_persistent), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
3035 {"timeout", "set timeout for socket I/O operations", OFFSET(timeout), AV_OPT_TYPE_DURATION, { .i64 = -1 }, -1, INT_MAX, .flags = E },
3036 {"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 },
3037 {"headers", "set custom HTTP headers, can override built in default headers", OFFSET(headers), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
3041 static const AVClass hls_class = {
3042 .class_name = "hls muxer",
3043 .item_name = av_default_item_name,
3045 .version = LIBAVUTIL_VERSION_INT,
3049 AVOutputFormat ff_hls_muxer = {
3051 .long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
3052 .extensions = "m3u8",
3053 .priv_data_size = sizeof(HLSContext),
3054 .audio_codec = AV_CODEC_ID_AAC,
3055 .video_codec = AV_CODEC_ID_H264,
3056 .subtitle_codec = AV_CODEC_ID_WEBVTT,
3057 .flags = AVFMT_NOFILE | AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_NODIMENSIONS,
3059 .write_header = hls_write_header,
3060 .write_packet = hls_write_packet,
3061 .write_trailer = hls_write_trailer,
3062 .priv_class = &hls_class,