2 * Apple HTTP Live Streaming segmenter
3 * Copyright (c) 2012, Luca Barbato
4 * Copyright (c) 2017 Akamai Technologies, Inc.
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
33 #include <openssl/rand.h>
36 #include "libavutil/avassert.h"
37 #include "libavutil/mathematics.h"
38 #include "libavutil/parseutils.h"
39 #include "libavutil/avstring.h"
40 #include "libavutil/intreadwrite.h"
41 #include "libavutil/random_seed.h"
42 #include "libavutil/opt.h"
43 #include "libavutil/log.h"
44 #include "libavutil/time.h"
45 #include "libavutil/time_internal.h"
48 #include "avio_internal.h"
49 #if CONFIG_HTTP_PROTOCOL
52 #include "hlsplaylist.h"
54 #include "os_support.h"
57 HLS_START_SEQUENCE_AS_START_NUMBER = 0,
58 HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH = 1,
59 HLS_START_SEQUENCE_AS_FORMATTED_DATETIME = 2, // YYYYMMDDhhmmss
60 HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH = 3,
61 HLS_START_SEQUENCE_LAST, // unused
62 } StartSequenceSourceType;
65 CODEC_ATTRIBUTE_WRITTEN = 0,
66 CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN,
67 } CodecAttributeStatus;
70 #define LINE_BUFFER_SIZE MAX_URL_SIZE
71 #define HLS_MICROSECOND_UNIT 1000000
72 #define POSTFIX_PATTERN "_%d"
74 typedef struct HLSSegment {
75 char filename[MAX_URL_SIZE];
76 char sub_filename[MAX_URL_SIZE];
77 double duration; /* in seconds */
82 int64_t keyframe_size;
83 unsigned var_stream_idx;
85 char key_uri[LINE_BUFFER_SIZE + 1];
86 char iv_string[KEYSIZE*2 + 1];
88 struct HLSSegment *next;
91 typedef enum HLSFlags {
92 // Generate a single media file and use byte ranges in the playlist.
93 HLS_SINGLE_FILE = (1 << 0),
94 HLS_DELETE_SEGMENTS = (1 << 1),
95 HLS_ROUND_DURATIONS = (1 << 2),
96 HLS_DISCONT_START = (1 << 3),
97 HLS_OMIT_ENDLIST = (1 << 4),
98 HLS_SPLIT_BY_TIME = (1 << 5),
99 HLS_APPEND_LIST = (1 << 6),
100 HLS_PROGRAM_DATE_TIME = (1 << 7),
101 HLS_SECOND_LEVEL_SEGMENT_INDEX = (1 << 8), // include segment index in segment filenames when use_localtime e.g.: %%03d
102 HLS_SECOND_LEVEL_SEGMENT_DURATION = (1 << 9), // include segment duration (microsec) in segment filenames when use_localtime e.g.: %%09t
103 HLS_SECOND_LEVEL_SEGMENT_SIZE = (1 << 10), // include segment size (bytes) in segment filenames when use_localtime e.g.: %%014s
104 HLS_TEMP_FILE = (1 << 11),
105 HLS_PERIODIC_REKEY = (1 << 12),
106 HLS_INDEPENDENT_SEGMENTS = (1 << 13),
107 HLS_I_FRAMES_ONLY = (1 << 14),
115 typedef struct VariantStream {
116 unsigned var_stream_idx;
119 ff_const59 AVOutputFormat *oformat;
120 ff_const59 AVOutputFormat *vtt_oformat;
123 int init_range_length;
124 uint8_t *temp_buffer;
125 uint8_t *init_buffer;
127 AVFormatContext *avf;
128 AVFormatContext *vtt_avf;
133 int start_pts_from_audio;
134 double dpp; // duration per packet
137 int64_t video_lastpos;
138 int64_t video_keyframe_pos;
139 int64_t video_keyframe_size;
140 double duration; // last segment duration computed so far, in seconds
141 int64_t start_pos; // last segment starting position
142 int64_t size; // last segment size
144 int discontinuity_set;
146 int reference_stream_index;
148 HLSSegment *segments;
149 HLSSegment *last_segment;
150 HLSSegment *old_segments;
157 double initial_prog_date_time;
158 char current_segment_final_filename_fmt[MAX_URL_SIZE]; // when renaming segments
160 char *fmp4_init_filename;
161 char *base_output_dirname;
165 char key_file[LINE_BUFFER_SIZE + 1];
166 char key_uri[LINE_BUFFER_SIZE + 1];
167 char key_string[KEYSIZE*2 + 1];
168 char iv_string[KEYSIZE*2 + 1];
171 char codec_attr[128];
172 CodecAttributeStatus attr_status;
173 unsigned int nb_streams;
174 int m3u8_created; /* status of media play-list creation */
175 int is_default; /* default status of audio group */
176 const char *language; /* audio lauguage name */
177 const char *agroup; /* audio group name */
178 const char *sgroup; /* subtitle group name */
179 const char *ccgroup; /* closed caption group name */
180 const char *varname; /* variant name */
183 typedef struct ClosedCaptionsStream {
184 const char *ccgroup; /* closed caption group name */
185 const char *instreamid; /* closed captions INSTREAM-ID */
186 const char *language; /* closed captions langauge */
187 } ClosedCaptionsStream;
189 typedef struct HLSContext {
190 const AVClass *class; // Class for private options.
191 int64_t start_sequence;
192 uint32_t start_sequence_source_type; // enum StartSequenceSourceType
194 float time; // Set by a private option.
195 float init_time; // Set by a private option.
196 int max_nb_segments; // Set by a private option.
197 int hls_delete_threshold; // Set by a private option.
199 int wrap; // Set by a private option.
201 uint32_t flags; // enum HLSFlags
202 uint32_t pl_type; // enum PlaylistType
203 char *segment_filename;
204 char *fmp4_init_filename;
206 int resend_init_file; ///< resend init file into disk after refresh m3u8
208 int use_localtime; ///< flag to expand filename with localtime
209 int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
211 int64_t recording_time;
212 int64_t max_seg_size; // every segment file max size
215 char *vtt_format_options_str;
216 char *subtitle_filename;
217 AVDictionary *format_options;
227 char key_file[LINE_BUFFER_SIZE + 1];
228 char key_uri[LINE_BUFFER_SIZE + 1];
229 char key_string[KEYSIZE*2 + 1];
230 char iv_string[KEYSIZE*2 + 1];
231 AVDictionary *vtt_format_options;
236 VariantStream *var_streams;
237 unsigned int nb_varstreams;
238 ClosedCaptionsStream *cc_streams;
239 unsigned int nb_ccstreams;
241 int master_m3u8_created; /* status of master play-list creation */
242 char *master_m3u8_url; /* URL of the master m3u8 file */
243 int version; /* HLS version */
244 char *var_stream_map; /* user specified variant stream map string */
245 char *cc_stream_map; /* user specified closed caption streams map string */
246 char *master_pl_name;
247 unsigned int master_publish_rate;
249 AVIOContext *m3u8_out;
250 AVIOContext *sub_m3u8_out;
252 int ignore_io_errors;
254 int has_default_key; /* has DEFAULT field of var_stream_map */
255 int has_video_m3u8; /* has video stream m3u8 list */
258 static int hlsenc_io_open(AVFormatContext *s, AVIOContext **pb, char *filename,
259 AVDictionary **options)
261 HLSContext *hls = s->priv_data;
262 int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
263 int err = AVERROR_MUXER_NOT_FOUND;
264 if (!*pb || !http_base_proto || !hls->http_persistent) {
265 err = s->io_open(s, pb, filename, AVIO_FLAG_WRITE, options);
266 #if CONFIG_HTTP_PROTOCOL
268 URLContext *http_url_context = ffio_geturlcontext(*pb);
269 av_assert0(http_url_context);
270 err = ff_http_do_new_request(http_url_context, filename);
272 ff_format_io_close(s, pb);
279 static int hlsenc_io_close(AVFormatContext *s, AVIOContext **pb, char *filename)
281 HLSContext *hls = s->priv_data;
282 int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
286 if (!http_base_proto || !hls->http_persistent || hls->key_info_file || hls->encrypt) {
287 ff_format_io_close(s, pb);
288 #if CONFIG_HTTP_PROTOCOL
290 URLContext *http_url_context = ffio_geturlcontext(*pb);
291 av_assert0(http_url_context);
293 ffurl_shutdown(http_url_context, AVIO_FLAG_WRITE);
294 ret = ff_http_get_shutdown_status(http_url_context);
300 static void set_http_options(AVFormatContext *s, AVDictionary **options, HLSContext *c)
302 int http_base_proto = ff_is_http_proto(s->url);
305 av_dict_set(options, "method", c->method, 0);
306 } else if (http_base_proto) {
307 av_dict_set(options, "method", "PUT", 0);
310 av_dict_set(options, "user_agent", c->user_agent, 0);
311 if (c->http_persistent)
312 av_dict_set_int(options, "multiple_requests", 1, 0);
314 av_dict_set_int(options, "timeout", c->timeout, 0);
316 av_dict_set(options, "headers", c->headers, 0);
319 static void write_codec_attr(AVStream *st, VariantStream *vs)
321 int codec_strlen = strlen(vs->codec_attr);
324 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
326 if (vs->attr_status == CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN)
329 if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
330 uint8_t *data = st->codecpar->extradata;
331 if (data && (data[0] | data[1] | data[2]) == 0 && data[3] == 1 && (data[4] & 0x1F) == 7) {
332 snprintf(attr, sizeof(attr),
333 "avc1.%02x%02x%02x", data[5], data[6], data[7]);
337 } else if (st->codecpar->codec_id == AV_CODEC_ID_MP2) {
338 snprintf(attr, sizeof(attr), "mp4a.40.33");
339 } else if (st->codecpar->codec_id == AV_CODEC_ID_MP3) {
340 snprintf(attr, sizeof(attr), "mp4a.40.34");
341 } else if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
342 /* TODO : For HE-AAC, HE-AACv2, the last digit needs to be set to 5 and 29 respectively */
343 snprintf(attr, sizeof(attr), "mp4a.40.2");
344 } else if (st->codecpar->codec_id == AV_CODEC_ID_AC3) {
345 snprintf(attr, sizeof(attr), "ac-3");
346 } else if (st->codecpar->codec_id == AV_CODEC_ID_EAC3) {
347 snprintf(attr, sizeof(attr), "ec-3");
351 // Don't write the same attribute multiple times
352 if (!av_stristr(vs->codec_attr, attr)) {
353 snprintf(vs->codec_attr + codec_strlen,
354 sizeof(vs->codec_attr) - codec_strlen,
355 "%s%s", codec_strlen ? "," : "", attr);
360 vs->codec_attr[0] = '\0';
361 vs->attr_status = CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN;
365 static int replace_str_data_in_filename(char **s, const char *filename, char placeholder, const char *datastring)
375 av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
382 if (c == '%' && *(p+1) == '%') // %%
384 else if (c == '%' && *(p+1) == placeholder) {
385 av_bprintf(&buf, "%s", datastring);
392 if (addchar_count > 0) {
393 av_bprint_append_data(&buf, p, addchar_count);
397 if (!av_bprint_is_complete(&buf)) {
398 av_bprint_finalize(&buf, NULL);
399 return AVERROR(ENOMEM);
401 if ((ret = av_bprint_finalize(&buf, &new_filename)) < 0)
407 static int replace_int_data_in_filename(char **s, const char *filename, char placeholder, int64_t number)
412 int nd, addchar_count;
417 av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
424 if (c == '%' && *(p+1) == '%') // %%
426 else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) {
429 while (av_isdigit(*(p + addchar_count))) {
430 nd = nd * 10 + *(p + addchar_count) - '0';
434 if (*(p + addchar_count) == placeholder) {
435 av_bprintf(&buf, "%0*"PRId64, (number < 0) ? nd : nd++, number);
436 p += (addchar_count + 1);
444 av_bprint_append_data(&buf, p, addchar_count);
447 if (!av_bprint_is_complete(&buf)) {
448 av_bprint_finalize(&buf, NULL);
449 return AVERROR(ENOMEM);
451 if ((ret = av_bprint_finalize(&buf, &new_filename)) < 0)
457 static void write_styp(AVIOContext *pb)
460 ffio_wfourcc(pb, "styp");
461 ffio_wfourcc(pb, "msdh");
462 avio_wb32(pb, 0); /* minor */
463 ffio_wfourcc(pb, "msdh");
464 ffio_wfourcc(pb, "msix");
467 static int flush_dynbuf(VariantStream *vs, int *range_length)
469 AVFormatContext *ctx = vs->avf;
472 return AVERROR(EINVAL);
476 av_write_frame(ctx, NULL);
479 *range_length = avio_close_dyn_buf(ctx->pb, &vs->temp_buffer);
481 avio_write(vs->out, vs->temp_buffer, *range_length);
485 return avio_open_dyn_buf(&ctx->pb);
488 static void reflush_dynbuf(VariantStream *vs, int *range_length)
491 avio_write(vs->out, vs->temp_buffer, *range_length);
495 #define SEPARATOR '\\'
497 #define SEPARATOR '/'
500 static int hls_delete_file(HLSContext *hls, AVFormatContext *avf,
501 const char *path, const char *proto)
503 if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
504 AVDictionary *opt = NULL;
505 AVIOContext *out = NULL;
507 av_dict_set(&opt, "method", "DELETE", 0);
508 ret = avf->io_open(avf, &out, path, AVIO_FLAG_WRITE, &opt);
511 return hls->ignore_io_errors ? 1 : ret;
512 ff_format_io_close(avf, &out);
513 } else if (unlink(path) < 0) {
514 av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
515 path, strerror(errno));
520 static int hls_delete_old_segments(AVFormatContext *s, HLSContext *hls,
524 HLSSegment *segment, *previous_segment = NULL;
525 float playlist_duration = 0.0f;
529 const char *dirname = NULL;
530 char *dirname_r = NULL;
531 char *dirname_repl = NULL;
532 const char *vtt_dirname = NULL;
533 char *vtt_dirname_r = NULL;
534 const char *proto = NULL;
536 av_bprint_init(&path, 0, AV_BPRINT_SIZE_UNLIMITED);
538 segment = vs->segments;
540 playlist_duration += segment->duration;
541 segment = segment->next;
544 segment = vs->old_segments;
547 playlist_duration -= segment->duration;
548 previous_segment = segment;
549 segment = previous_segment->next;
551 if (playlist_duration <= -previous_segment->duration) {
552 previous_segment->next = NULL;
555 if (segment_cnt >= hls->hls_delete_threshold) {
556 previous_segment->next = NULL;
561 if (segment && !hls->use_localtime_mkdir) {
562 dirname_r = hls->segment_filename ? av_strdup(hls->segment_filename): av_strdup(vs->avf->url);
563 dirname = av_dirname(dirname_r);
566 /* if %v is present in the file's directory
567 * all segment belongs to the same variant, so do it only once before the loop*/
568 if (dirname && av_stristr(dirname, "%v")) {
570 if (replace_int_data_in_filename(&dirname_repl, dirname, 'v', segment->var_stream_idx) < 1) {
571 ret = AVERROR(EINVAL);
575 if (replace_str_data_in_filename(&dirname_repl, dirname, 'v', vs->varname) < 1) {
576 ret = AVERROR(EINVAL);
581 dirname = dirname_repl;
585 av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n",
587 if (!hls->use_localtime_mkdir) // segment->filename contains basename only
588 av_bprintf(&path, "%s%c", dirname, SEPARATOR);
589 av_bprintf(&path, "%s", segment->filename);
591 if (!av_bprint_is_complete(&path)) {
592 ret = AVERROR(ENOMEM);
596 proto = avio_find_protocol_name(s->url);
597 if (ret = hls_delete_file(hls, vs->avf, path.str, proto))
600 if ((segment->sub_filename[0] != '\0')) {
601 vtt_dirname_r = av_strdup(vs->vtt_avf->url);
602 vtt_dirname = av_dirname(vtt_dirname_r);
604 av_bprint_clear(&path);
605 av_bprintf(&path, "%s%c%s", vtt_dirname, SEPARATOR,
606 segment->sub_filename);
607 av_freep(&vtt_dirname_r);
609 if (!av_bprint_is_complete(&path)) {
610 ret = AVERROR(ENOMEM);
614 if (ret = hls_delete_file(hls, vs->vtt_avf, path.str, proto))
617 av_bprint_clear(&path);
618 previous_segment = segment;
619 segment = previous_segment->next;
620 av_freep(&previous_segment);
624 av_bprint_finalize(&path, NULL);
625 av_freep(&dirname_r);
626 av_freep(&dirname_repl);
631 static int randomize(uint8_t *buf, int len)
634 gcry_randomize(buf, len, GCRY_VERY_STRONG_RANDOM);
637 if (RAND_bytes(buf, len))
640 return AVERROR(ENOSYS);
642 return AVERROR(EINVAL);
645 static int do_encrypt(AVFormatContext *s, VariantStream *vs)
647 HLSContext *hls = s->priv_data;
651 uint8_t key[KEYSIZE];
652 char * key_basename_source = (hls->master_m3u8_url) ? hls->master_m3u8_url : s->url;
654 len = strlen(key_basename_source) + 4 + 1;
655 hls->key_basename = av_mallocz(len);
656 if (!hls->key_basename)
657 return AVERROR(ENOMEM);
659 av_strlcpy(hls->key_basename, key_basename_source, len);
660 av_strlcat(hls->key_basename, ".key", len);
663 av_strlcpy(hls->key_file, hls->key_url, sizeof(hls->key_file));
664 av_strlcpy(hls->key_uri, hls->key_url, sizeof(hls->key_uri));
666 av_strlcpy(hls->key_file, hls->key_basename, sizeof(hls->key_file));
667 av_strlcpy(hls->key_uri, hls->key_basename, sizeof(hls->key_uri));
670 if (!*hls->iv_string) {
671 uint8_t iv[16] = { 0 };
675 AV_WB64(iv + 8, vs->sequence);
677 memcpy(iv, hls->iv, sizeof(iv));
679 ff_data_to_hex(buf, iv, sizeof(iv), 0);
681 memcpy(hls->iv_string, buf, sizeof(hls->iv_string));
684 if (!*hls->key_uri) {
685 av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
686 return AVERROR(EINVAL);
689 if (!*hls->key_file) {
690 av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
691 return AVERROR(EINVAL);
694 if (!*hls->key_string) {
695 AVDictionary *options = NULL;
697 if ((ret = randomize(key, sizeof(key))) < 0) {
698 av_log(s, AV_LOG_ERROR, "Cannot generate a strong random key\n");
702 memcpy(key, hls->key, sizeof(key));
705 ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
706 set_http_options(s, &options, hls);
707 ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_WRITE, &options);
708 av_dict_free(&options);
711 avio_seek(pb, 0, SEEK_CUR);
712 avio_write(pb, key, KEYSIZE);
719 static int hls_encryption_start(AVFormatContext *s, VariantStream *vs)
721 HLSContext *hls = s->priv_data;
724 uint8_t key[KEYSIZE];
725 AVDictionary *options = NULL;
727 set_http_options(s, &options, hls);
728 ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, &options);
729 av_dict_free(&options);
731 av_log(hls, AV_LOG_ERROR,
732 "error opening key info file %s\n", hls->key_info_file);
736 ff_get_line(pb, vs->key_uri, sizeof(vs->key_uri));
737 vs->key_uri[strcspn(vs->key_uri, "\r\n")] = '\0';
739 ff_get_line(pb, vs->key_file, sizeof(vs->key_file));
740 vs->key_file[strcspn(vs->key_file, "\r\n")] = '\0';
742 ff_get_line(pb, vs->iv_string, sizeof(vs->iv_string));
743 vs->iv_string[strcspn(vs->iv_string, "\r\n")] = '\0';
745 ff_format_io_close(s, &pb);
748 av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
749 return AVERROR(EINVAL);
752 if (!*vs->key_file) {
753 av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
754 return AVERROR(EINVAL);
757 set_http_options(s, &options, hls);
758 ret = s->io_open(s, &pb, vs->key_file, AVIO_FLAG_READ, &options);
759 av_dict_free(&options);
761 av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", vs->key_file);
765 ret = avio_read(pb, key, sizeof(key));
766 ff_format_io_close(s, &pb);
767 if (ret != sizeof(key)) {
768 av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", vs->key_file);
769 if (ret >= 0 || ret == AVERROR_EOF)
770 ret = AVERROR(EINVAL);
773 ff_data_to_hex(vs->key_string, key, sizeof(key), 0);
778 static int hls_mux_init(AVFormatContext *s, VariantStream *vs)
780 AVDictionary *options = NULL;
781 HLSContext *hls = s->priv_data;
783 AVFormatContext *vtt_oc = NULL;
784 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
785 int remaining_options;
788 ret = avformat_alloc_output_context2(&vs->avf, vs->oformat, NULL, NULL);
793 oc->url = av_strdup("");
795 return AVERROR(ENOMEM);
797 oc->interrupt_callback = s->interrupt_callback;
798 oc->max_delay = s->max_delay;
799 oc->opaque = s->opaque;
800 oc->io_open = s->io_open;
801 oc->io_close = s->io_close;
802 oc->strict_std_compliance = s->strict_std_compliance;
803 av_dict_copy(&oc->metadata, s->metadata, 0);
805 if (vs->vtt_oformat) {
806 ret = avformat_alloc_output_context2(&vs->vtt_avf, vs->vtt_oformat, NULL, NULL);
809 vtt_oc = vs->vtt_avf;
810 av_dict_copy(&vtt_oc->metadata, s->metadata, 0);
813 for (i = 0; i < vs->nb_streams; i++) {
815 AVFormatContext *loc;
816 if (vs->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
821 if (!(st = avformat_new_stream(loc, NULL)))
822 return AVERROR(ENOMEM);
823 avcodec_parameters_copy(st->codecpar, vs->streams[i]->codecpar);
824 if (!oc->oformat->codec_tag ||
825 av_codec_get_id (oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_tag) == st->codecpar->codec_id ||
826 av_codec_get_tag(oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_id) <= 0) {
827 st->codecpar->codec_tag = vs->streams[i]->codecpar->codec_tag;
829 st->codecpar->codec_tag = 0;
832 st->sample_aspect_ratio = vs->streams[i]->sample_aspect_ratio;
833 st->time_base = vs->streams[i]->time_base;
834 av_dict_copy(&st->metadata, vs->streams[i]->metadata, 0);
840 if (hls->segment_type == SEGMENT_TYPE_FMP4 && hls->max_seg_size > 0) {
841 if (hls->http_persistent > 0) {
842 //TODO: Support fragment fmp4 for http persistent in HLS muxer.
843 av_log(s, AV_LOG_WARNING, "http persistent mode is currently unsupported for fragment mp4 in the HLS muxer.\n");
845 if (hls->max_seg_size > 0) {
846 av_log(s, AV_LOG_WARNING, "Multi-file byterange mode is currently unsupported in the HLS muxer.\n");
847 return AVERROR_PATCHWELCOME;
851 if ((ret = avio_open_dyn_buf(&oc->pb)) < 0)
854 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
855 set_http_options(s, &options, hls);
856 if (byterange_mode) {
857 ret = hlsenc_io_open(s, &vs->out, vs->basename, &options);
859 ret = hlsenc_io_open(s, &vs->out, vs->base_output_dirname, &options);
861 av_dict_free(&options);
864 av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", vs->fmp4_init_filename);
868 av_dict_copy(&options, hls->format_options, 0);
869 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
870 av_dict_set(&options, "fflags", "-autobsf", 0);
871 av_dict_set(&options, "movflags", "+frag_custom+dash+delay_moov", AV_DICT_APPEND);
873 /* We only require one PAT/PMT per segment. */
875 snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1);
876 av_dict_set(&options, "sdt_period", period, AV_DICT_DONT_OVERWRITE);
877 av_dict_set(&options, "pat_period", period, AV_DICT_DONT_OVERWRITE);
879 ret = avformat_init_output(oc, &options);
880 remaining_options = av_dict_count(options);
881 av_dict_free(&options);
884 if (remaining_options) {
885 av_log(s, AV_LOG_ERROR, "Some of the provided format options are not recognized\n");
886 return AVERROR(EINVAL);
892 static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename)
895 if (!av_strcasecmp(segment->filename,filename))
897 segment = segment->next;
899 return (HLSSegment *) NULL;
902 static int sls_flags_filename_process(struct AVFormatContext *s, HLSContext *hls,
903 VariantStream *vs, HLSSegment *en,
904 double duration, int64_t pos, int64_t size)
906 if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
907 strlen(vs->current_segment_final_filename_fmt)) {
908 char * new_url = av_strdup(vs->current_segment_final_filename_fmt);
910 return AVERROR(ENOMEM);
912 ff_format_set_url(vs->avf, new_url);
913 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
914 char *filename = NULL;
915 if (replace_int_data_in_filename(&filename, vs->avf->url, 's', pos + size) < 1) {
916 av_log(hls, AV_LOG_ERROR,
917 "Invalid second level segment filename template '%s', "
918 "you can try to remove second_level_segment_size flag\n",
921 return AVERROR(EINVAL);
923 ff_format_set_url(vs->avf, filename);
925 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
926 char *filename = NULL;
927 if (replace_int_data_in_filename(&filename, vs->avf->url,
928 't', (int64_t)round(duration * HLS_MICROSECOND_UNIT)) < 1) {
929 av_log(hls, AV_LOG_ERROR,
930 "Invalid second level segment filename template '%s', "
931 "you can try to remove second_level_segment_time flag\n",
934 return AVERROR(EINVAL);
936 ff_format_set_url(vs->avf, filename);
942 static int sls_flag_check_duration_size_index(HLSContext *hls)
946 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
947 av_log(hls, AV_LOG_ERROR,
948 "second_level_segment_duration hls_flag requires strftime to be true\n");
949 ret = AVERROR(EINVAL);
951 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
952 av_log(hls, AV_LOG_ERROR,
953 "second_level_segment_size hls_flag requires strfime to be true\n");
954 ret = AVERROR(EINVAL);
956 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
957 av_log(hls, AV_LOG_ERROR,
958 "second_level_segment_index hls_flag requires strftime to be true\n");
959 ret = AVERROR(EINVAL);
965 static int sls_flag_check_duration_size(HLSContext *hls, VariantStream *vs)
967 const char *proto = avio_find_protocol_name(vs->basename);
968 int segment_renaming_ok = proto && !strcmp(proto, "file");
971 if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) {
972 av_log(hls, AV_LOG_ERROR,
973 "second_level_segment_duration hls_flag works only with file protocol segment names\n");
974 ret = AVERROR(EINVAL);
976 if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) {
977 av_log(hls, AV_LOG_ERROR,
978 "second_level_segment_size hls_flag works only with file protocol segment names\n");
979 ret = AVERROR(EINVAL);
985 static void sls_flag_file_rename(HLSContext *hls, VariantStream *vs, char *old_filename) {
986 if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
987 strlen(vs->current_segment_final_filename_fmt)) {
988 ff_rename(old_filename, vs->avf->url, hls);
992 static int sls_flag_use_localtime_filename(AVFormatContext *oc, HLSContext *c, VariantStream *vs)
994 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
995 char *filename = NULL;
996 if (replace_int_data_in_filename(&filename,
998 oc->url, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1000 oc->url, 'd', vs->sequence) < 1) {
1002 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
1003 "you can try to remove second_level_segment_index flag\n",
1005 av_freep(&filename);
1006 return AVERROR(EINVAL);
1008 ff_format_set_url(oc, filename);
1010 if (c->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) {
1011 av_strlcpy(vs->current_segment_final_filename_fmt, oc->url,
1012 sizeof(vs->current_segment_final_filename_fmt));
1013 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
1014 char *filename = NULL;
1015 if (replace_int_data_in_filename(&filename, oc->url, 's', 0) < 1) {
1016 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
1017 "you can try to remove second_level_segment_size flag\n",
1019 av_freep(&filename);
1020 return AVERROR(EINVAL);
1022 ff_format_set_url(oc, filename);
1024 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
1025 char *filename = NULL;
1026 if (replace_int_data_in_filename(&filename, oc->url, 't', 0) < 1) {
1027 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
1028 "you can try to remove second_level_segment_time flag\n",
1030 av_freep(&filename);
1031 return AVERROR(EINVAL);
1033 ff_format_set_url(oc, filename);
1039 /* Create a new segment and append it to the segment list */
1040 static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls,
1041 VariantStream *vs, double duration, int64_t pos,
1044 HLSSegment *en = av_malloc(sizeof(*en));
1045 const char *filename;
1046 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1050 return AVERROR(ENOMEM);
1052 en->var_stream_idx = vs->var_stream_idx;
1053 ret = sls_flags_filename_process(s, hls, vs, en, duration, pos, size);
1059 filename = av_basename(vs->avf->url);
1061 if (hls->use_localtime_mkdir) {
1062 filename = vs->avf->url;
1064 if ((find_segment_by_filename(vs->segments, filename) || find_segment_by_filename(vs->old_segments, filename))
1065 && !byterange_mode) {
1066 av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename);
1068 av_strlcpy(en->filename, filename, sizeof(en->filename));
1070 if (vs->has_subtitle)
1071 av_strlcpy(en->sub_filename, av_basename(vs->vtt_avf->url), sizeof(en->sub_filename));
1073 en->sub_filename[0] = '\0';
1075 en->duration = duration;
1078 en->keyframe_pos = vs->video_keyframe_pos;
1079 en->keyframe_size = vs->video_keyframe_size;
1083 if (vs->discontinuity) {
1085 vs->discontinuity = 0;
1088 if (hls->key_info_file || hls->encrypt) {
1089 av_strlcpy(en->key_uri, vs->key_uri, sizeof(en->key_uri));
1090 av_strlcpy(en->iv_string, vs->iv_string, sizeof(en->iv_string));
1096 vs->last_segment->next = en;
1098 vs->last_segment = en;
1100 // EVENT or VOD playlists imply sliding window cannot be used
1101 if (hls->pl_type != PLAYLIST_TYPE_NONE)
1102 hls->max_nb_segments = 0;
1104 if (hls->max_nb_segments && vs->nb_entries >= hls->max_nb_segments) {
1106 vs->initial_prog_date_time += en->duration;
1107 vs->segments = en->next;
1108 if (en && hls->flags & HLS_DELETE_SEGMENTS &&
1110 !(hls->flags & HLS_SINGLE_FILE || hls->wrap)) {
1112 !(hls->flags & HLS_SINGLE_FILE)) {
1114 en->next = vs->old_segments;
1115 vs->old_segments = en;
1116 if ((ret = hls_delete_old_segments(s, hls, vs)) < 0)
1123 if (hls->max_seg_size > 0) {
1131 static int parse_playlist(AVFormatContext *s, const char *url, VariantStream *vs)
1133 HLSContext *hls = s->priv_data;
1135 int ret = 0, is_segment = 0;
1136 int64_t new_start_pos;
1137 char line[MAX_URL_SIZE];
1141 if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ,
1142 &s->interrupt_callback, NULL,
1143 s->protocol_whitelist, s->protocol_blacklist)) < 0)
1146 ff_get_chomp_line(in, line, sizeof(line));
1147 if (strcmp(line, "#EXTM3U")) {
1148 ret = AVERROR_INVALIDDATA;
1152 vs->discontinuity = 0;
1153 while (!avio_feof(in)) {
1154 ff_get_chomp_line(in, line, sizeof(line));
1155 if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
1156 int64_t tmp_sequence = strtoll(ptr, NULL, 10);
1157 if (tmp_sequence < vs->sequence)
1158 av_log(hls, AV_LOG_VERBOSE,
1159 "Found playlist sequence number was smaller """
1160 "than specified start sequence number: %"PRId64" < %"PRId64", "
1161 "omitting\n", tmp_sequence, hls->start_sequence);
1163 av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence);
1164 vs->sequence = tmp_sequence;
1166 } else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) {
1168 vs->discontinuity = 1;
1169 } else if (av_strstart(line, "#EXTINF:", &ptr)) {
1171 vs->duration = atof(ptr);
1172 } else if (av_stristart(line, "#EXT-X-KEY:", &ptr)) {
1173 ptr = av_stristr(line, "URI=\"");
1175 ptr += strlen("URI=\"");
1176 end = av_stristr(ptr, ",");
1178 av_strlcpy(vs->key_uri, ptr, end - ptr);
1180 av_strlcpy(vs->key_uri, ptr, sizeof(vs->key_uri));
1184 ptr = av_stristr(line, "IV=0x");
1186 ptr += strlen("IV=0x");
1187 end = av_stristr(ptr, ",");
1189 av_strlcpy(vs->iv_string, ptr, end - ptr);
1191 av_strlcpy(vs->iv_string, ptr, sizeof(vs->iv_string));
1195 } else if (av_strstart(line, "#", NULL)) {
1197 } else if (line[0]) {
1199 char *new_file = av_strdup(line);
1201 ret = AVERROR(ENOMEM);
1204 ff_format_set_url(vs->avf, new_file);
1206 new_start_pos = avio_tell(vs->avf->pb);
1207 vs->size = new_start_pos - vs->start_pos;
1208 vs->initial_prog_date_time -= vs->duration; // this is a previously existing segment
1209 ret = hls_append_segment(s, hls, vs, vs->duration, vs->start_pos, vs->size);
1212 vs->start_pos = new_start_pos;
1222 static void hls_free_segments(HLSSegment *p)
1233 static int hls_rename_temp_file(AVFormatContext *s, AVFormatContext *oc)
1235 size_t len = strlen(oc->url);
1236 char *final_filename = av_strdup(oc->url);
1239 if (!final_filename)
1240 return AVERROR(ENOMEM);
1241 final_filename[len-4] = '\0';
1242 ret = ff_rename(oc->url, final_filename, s);
1243 oc->url[len-4] = '\0';
1244 av_freep(&final_filename);
1248 static const char* get_relative_url(const char *master_url, const char *media_url)
1250 const char *p = strrchr(master_url, '/');
1251 size_t base_len = 0;
1253 if (!p) p = strrchr(master_url, '\\');
1256 base_len = p - master_url;
1257 if (av_strncasecmp(master_url, media_url, base_len)) {
1258 av_log(NULL, AV_LOG_WARNING, "Unable to find relative url\n");
1265 return media_url + base_len + 1;
1268 static int64_t get_stream_bit_rate(AVStream *stream)
1270 AVCPBProperties *props = (AVCPBProperties*)av_stream_get_side_data(
1272 AV_PKT_DATA_CPB_PROPERTIES,
1276 if (stream->codecpar->bit_rate)
1277 return stream->codecpar->bit_rate;
1279 return props->max_bitrate;
1284 static int create_master_playlist(AVFormatContext *s,
1285 VariantStream * const input_vs)
1287 HLSContext *hls = s->priv_data;
1288 VariantStream *vs, *temp_vs;
1289 AVStream *vid_st, *aud_st;
1290 AVDictionary *options = NULL;
1293 const char *m3u8_rel_name = NULL;
1294 const char *vtt_m3u8_rel_name = NULL;
1295 const char *ccgroup;
1296 const char *sgroup = NULL;
1297 ClosedCaptionsStream *ccs;
1298 const char *proto = avio_find_protocol_name(hls->master_m3u8_url);
1299 int is_file_proto = proto && !strcmp(proto, "file");
1300 int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || hls->master_publish_rate);
1301 char temp_filename[MAX_URL_SIZE];
1303 input_vs->m3u8_created = 1;
1304 if (!hls->master_m3u8_created) {
1305 /* For the first time, wait until all the media playlists are created */
1306 for (i = 0; i < hls->nb_varstreams; i++)
1307 if (!hls->var_streams[i].m3u8_created)
1310 /* Keep publishing the master playlist at the configured rate */
1311 if (&hls->var_streams[0] != input_vs || !hls->master_publish_rate ||
1312 input_vs->number % hls->master_publish_rate)
1316 set_http_options(s, &options, hls);
1317 snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", hls->master_m3u8_url);
1318 ret = hlsenc_io_open(s, &hls->m3u8_out, temp_filename, &options);
1319 av_dict_free(&options);
1321 av_log(s, AV_LOG_ERROR, "Failed to open master play list file '%s'\n",
1326 ff_hls_write_playlist_version(hls->m3u8_out, hls->version);
1328 for (i = 0; i < hls->nb_ccstreams; i++) {
1329 ccs = &(hls->cc_streams[i]);
1330 avio_printf(hls->m3u8_out, "#EXT-X-MEDIA:TYPE=CLOSED-CAPTIONS");
1331 avio_printf(hls->m3u8_out, ",GROUP-ID=\"%s\"", ccs->ccgroup);
1332 avio_printf(hls->m3u8_out, ",NAME=\"%s\"", ccs->instreamid);
1334 avio_printf(hls->m3u8_out, ",LANGUAGE=\"%s\"", ccs->language);
1335 avio_printf(hls->m3u8_out, ",INSTREAM-ID=\"%s\"\n", ccs->instreamid);
1338 /* For audio only variant streams add #EXT-X-MEDIA tag with attributes*/
1339 for (i = 0; i < hls->nb_varstreams; i++) {
1340 vs = &(hls->var_streams[i]);
1342 if (vs->has_video || vs->has_subtitle || !vs->agroup)
1345 m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
1346 if (!m3u8_rel_name) {
1347 av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
1351 ff_hls_write_audio_rendition(hls->m3u8_out, vs->agroup, m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
1354 /* For variant streams with video add #EXT-X-STREAM-INF tag with attributes*/
1355 for (i = 0; i < hls->nb_varstreams; i++) {
1356 vs = &(hls->var_streams[i]);
1358 m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
1359 if (!m3u8_rel_name) {
1360 av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
1366 for (j = 0; j < vs->nb_streams; j++) {
1367 if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
1368 vid_st = vs->streams[j];
1369 else if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
1370 aud_st = vs->streams[j];
1373 if (!vid_st && !aud_st) {
1374 av_log(s, AV_LOG_WARNING, "Media stream not found\n");
1379 * Traverse through the list of audio only rendition streams and find
1380 * the rendition which has highest bitrate in the same audio group
1383 for (j = 0; j < hls->nb_varstreams; j++) {
1384 temp_vs = &(hls->var_streams[j]);
1385 if (!temp_vs->has_video && !temp_vs->has_subtitle &&
1387 !av_strcasecmp(temp_vs->agroup, vs->agroup)) {
1389 aud_st = temp_vs->streams[0];
1390 if (temp_vs->streams[0]->codecpar->bit_rate >
1391 aud_st->codecpar->bit_rate)
1392 aud_st = temp_vs->streams[0];
1399 bandwidth += get_stream_bit_rate(vid_st);
1401 bandwidth += get_stream_bit_rate(aud_st);
1402 bandwidth += bandwidth / 10;
1405 if (vid_st && vs->ccgroup) {
1406 /* check if this group name is available in the cc map string */
1407 for (j = 0; j < hls->nb_ccstreams; j++) {
1408 ccs = &(hls->cc_streams[j]);
1409 if (!av_strcasecmp(ccs->ccgroup, vs->ccgroup)) {
1410 ccgroup = vs->ccgroup;
1414 if (j == hls->nb_ccstreams)
1415 av_log(s, AV_LOG_WARNING, "mapping ccgroup %s not found\n",
1419 if (vid_st && vs->sgroup) {
1420 sgroup = vs->sgroup;
1421 vtt_m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->vtt_m3u8_name);
1422 if (!vtt_m3u8_rel_name) {
1423 av_log(s, AV_LOG_WARNING, "Unable to find relative subtitle URL\n");
1427 ff_hls_write_subtitle_rendition(hls->m3u8_out, sgroup, vtt_m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
1430 if (!hls->has_default_key || !hls->has_video_m3u8) {
1431 ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
1432 aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup);
1435 ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
1436 aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup);
1442 hls->master_m3u8_created = 1;
1443 hlsenc_io_close(s, &hls->m3u8_out, temp_filename);
1445 ff_rename(temp_filename, hls->master_m3u8_url, s);
1450 static int hls_window(AVFormatContext *s, int last, VariantStream *vs)
1452 HLSContext *hls = s->priv_data;
1454 int target_duration = 0;
1456 char temp_filename[MAX_URL_SIZE];
1457 char temp_vtt_filename[MAX_URL_SIZE];
1458 int64_t sequence = FFMAX(hls->start_sequence, vs->sequence - vs->nb_entries);
1459 const char *proto = avio_find_protocol_name(vs->m3u8_name);
1460 int is_file_proto = proto && !strcmp(proto, "file");
1461 int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || !(hls->pl_type == PLAYLIST_TYPE_VOD));
1462 static unsigned warned_non_file;
1463 char *key_uri = NULL;
1464 char *iv_string = NULL;
1465 AVDictionary *options = NULL;
1466 double prog_date_time = vs->initial_prog_date_time;
1467 double *prog_date_time_p = (hls->flags & HLS_PROGRAM_DATE_TIME) ? &prog_date_time : NULL;
1468 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1471 if (byterange_mode) {
1476 if (hls->flags & HLS_INDEPENDENT_SEGMENTS) {
1480 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1484 if (!is_file_proto && (hls->flags & HLS_TEMP_FILE) && !warned_non_file++)
1485 av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
1487 set_http_options(s, &options, hls);
1488 snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", vs->m3u8_name);
1489 if ((ret = hlsenc_io_open(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename, &options)) < 0) {
1490 if (hls->ignore_io_errors)
1495 for (en = vs->segments; en; en = en->next) {
1496 if (target_duration <= en->duration)
1497 target_duration = lrint(en->duration);
1500 vs->discontinuity_set = 0;
1501 ff_hls_write_playlist_header(byterange_mode ? hls->m3u8_out : vs->out, hls->version, hls->allowcache,
1502 target_duration, sequence, hls->pl_type, hls->flags & HLS_I_FRAMES_ONLY);
1504 if ((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && vs->discontinuity_set==0) {
1505 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-DISCONTINUITY\n");
1506 vs->discontinuity_set = 1;
1508 if (vs->has_video && (hls->flags & HLS_INDEPENDENT_SEGMENTS)) {
1509 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-INDEPENDENT-SEGMENTS\n");
1511 for (en = vs->segments; en; en = en->next) {
1512 if ((hls->encrypt || hls->key_info_file) && (!key_uri || strcmp(en->key_uri, key_uri) ||
1513 av_strcasecmp(en->iv_string, iv_string))) {
1514 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri);
1516 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, ",IV=0x%s", en->iv_string);
1517 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "\n");
1518 key_uri = en->key_uri;
1519 iv_string = en->iv_string;
1522 if ((hls->segment_type == SEGMENT_TYPE_FMP4) && (en == vs->segments)) {
1523 ff_hls_write_init_file(byterange_mode ? hls->m3u8_out : vs->out, (hls->flags & HLS_SINGLE_FILE) ? en->filename : vs->fmp4_init_filename,
1524 hls->flags & HLS_SINGLE_FILE, vs->init_range_length, 0);
1527 ret = ff_hls_write_file_entry(byterange_mode ? hls->m3u8_out : vs->out, en->discont, byterange_mode,
1528 en->duration, hls->flags & HLS_ROUND_DURATIONS,
1529 en->size, en->pos, hls->baseurl,
1530 en->filename, prog_date_time_p, en->keyframe_size, en->keyframe_pos, hls->flags & HLS_I_FRAMES_ONLY);
1532 av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
1536 if (last && (hls->flags & HLS_OMIT_ENDLIST)==0)
1537 ff_hls_write_end_list(byterange_mode ? hls->m3u8_out : vs->out);
1539 if (vs->vtt_m3u8_name) {
1540 snprintf(temp_vtt_filename, sizeof(temp_vtt_filename), use_temp_file ? "%s.tmp" : "%s", vs->vtt_m3u8_name);
1541 if ((ret = hlsenc_io_open(s, &hls->sub_m3u8_out, temp_vtt_filename, &options)) < 0) {
1542 if (hls->ignore_io_errors)
1546 ff_hls_write_playlist_header(hls->sub_m3u8_out, hls->version, hls->allowcache,
1547 target_duration, sequence, PLAYLIST_TYPE_NONE, 0);
1548 for (en = vs->segments; en; en = en->next) {
1549 ret = ff_hls_write_file_entry(hls->sub_m3u8_out, 0, byterange_mode,
1550 en->duration, 0, en->size, en->pos,
1551 hls->baseurl, en->sub_filename, NULL, 0, 0, 0);
1553 av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
1558 ff_hls_write_end_list(hls->sub_m3u8_out);
1563 av_dict_free(&options);
1564 ret = hlsenc_io_close(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename);
1568 hlsenc_io_close(s, &hls->sub_m3u8_out, vs->vtt_m3u8_name);
1569 if (use_temp_file) {
1570 ff_rename(temp_filename, vs->m3u8_name, s);
1571 if (vs->vtt_m3u8_name)
1572 ff_rename(temp_vtt_filename, vs->vtt_m3u8_name, s);
1574 if (ret >= 0 && hls->master_pl_name)
1575 if (create_master_playlist(s, vs) < 0)
1576 av_log(s, AV_LOG_WARNING, "Master playlist creation failed\n");
1581 static int hls_start(AVFormatContext *s, VariantStream *vs)
1583 HLSContext *c = s->priv_data;
1584 AVFormatContext *oc = vs->avf;
1585 AVFormatContext *vtt_oc = vs->vtt_avf;
1586 AVDictionary *options = NULL;
1587 const char *proto = NULL;
1588 int use_temp_file = 0;
1589 char iv_string[KEYSIZE*2 + 1];
1592 if (c->flags & HLS_SINGLE_FILE) {
1593 char *new_name = av_strdup(vs->basename);
1595 return AVERROR(ENOMEM);
1596 ff_format_set_url(oc, new_name);
1597 if (vs->vtt_basename) {
1598 new_name = av_strdup(vs->vtt_basename);
1600 return AVERROR(ENOMEM);
1601 ff_format_set_url(vtt_oc, new_name);
1603 } else if (c->max_seg_size > 0) {
1604 char *filename = NULL;
1605 if (replace_int_data_in_filename(&filename,
1607 vs->basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1609 vs->basename, 'd', vs->sequence) < 1) {
1611 av_freep(&filename);
1612 av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -strftime 1 with it\n", vs->basename);
1613 return AVERROR(EINVAL);
1615 ff_format_set_url(oc, filename);
1617 if (c->use_localtime) {
1619 struct tm *tm, tmpbuf;
1620 int bufsize = strlen(vs->basename) + MAX_URL_SIZE;
1621 char *buf = av_mallocz(bufsize);
1623 return AVERROR(ENOMEM);
1625 tm = localtime_r(&now0, &tmpbuf);
1626 ff_format_set_url(oc, buf);
1627 if (!strftime(oc->url, bufsize, vs->basename, tm)) {
1628 av_log(oc, AV_LOG_ERROR, "Could not get segment filename with strftime\n");
1629 return AVERROR(EINVAL);
1632 err = sls_flag_use_localtime_filename(oc, c, vs);
1634 return AVERROR(ENOMEM);
1637 if (c->use_localtime_mkdir) {
1639 char *fn_copy = av_strdup(oc->url);
1641 return AVERROR(ENOMEM);
1642 dir = av_dirname(fn_copy);
1643 if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
1644 av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir);
1646 return AVERROR(errno);
1651 char *filename = NULL;
1652 if (replace_int_data_in_filename(&filename,
1654 vs->basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1656 vs->basename, 'd', vs->sequence) < 1) {
1658 av_freep(&filename);
1659 av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -strftime 1 with it\n", vs->basename);
1660 return AVERROR(EINVAL);
1662 ff_format_set_url(oc, filename);
1664 if (vs->vtt_basename) {
1665 char *filename = NULL;
1666 if (replace_int_data_in_filename(&filename,
1668 vs->vtt_basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1670 vs->vtt_basename, 'd', vs->sequence) < 1) {
1672 av_freep(&filename);
1673 av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", vs->vtt_basename);
1674 return AVERROR(EINVAL);
1676 ff_format_set_url(vtt_oc, filename);
1680 proto = avio_find_protocol_name(oc->url);
1681 use_temp_file = proto && !strcmp(proto, "file") && (c->flags & HLS_TEMP_FILE);
1683 if (use_temp_file) {
1684 char *new_name = av_asprintf("%s.tmp", oc->url);
1686 return AVERROR(ENOMEM);
1687 ff_format_set_url(oc, new_name);
1690 if (c->key_info_file || c->encrypt) {
1691 if (c->segment_type == SEGMENT_TYPE_FMP4) {
1692 av_log(s, AV_LOG_ERROR, "Encrypted fmp4 not yet supported\n");
1693 return AVERROR_PATCHWELCOME;
1696 if (c->key_info_file && c->encrypt) {
1697 av_log(s, AV_LOG_WARNING, "Cannot use both -hls_key_info_file and -hls_enc,"
1698 " ignoring -hls_enc\n");
1701 if (!vs->encrypt_started || (c->flags & HLS_PERIODIC_REKEY)) {
1702 if (c->key_info_file) {
1703 if ((err = hls_encryption_start(s, vs)) < 0)
1706 if (!c->encrypt_started) {
1707 if ((err = do_encrypt(s, vs)) < 0)
1709 c->encrypt_started = 1;
1711 av_strlcpy(vs->key_uri, c->key_uri, sizeof(vs->key_uri));
1712 av_strlcpy(vs->key_string, c->key_string, sizeof(vs->key_string));
1713 av_strlcpy(vs->iv_string, c->iv_string, sizeof(vs->iv_string));
1715 vs->encrypt_started = 1;
1717 err = av_strlcpy(iv_string, vs->iv_string, sizeof(iv_string));
1719 snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, vs->sequence);
1720 memset(vs->iv_string, 0, sizeof(vs->iv_string));
1721 memcpy(vs->iv_string, iv_string, sizeof(iv_string));
1724 if (c->segment_type != SEGMENT_TYPE_FMP4) {
1725 if (oc->oformat->priv_class && oc->priv_data) {
1726 av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
1728 if (c->flags & HLS_SINGLE_FILE) {
1729 set_http_options(s, &options, c);
1730 if ((err = hlsenc_io_open(s, &vs->out, oc->url, &options)) < 0) {
1731 if (c->ignore_io_errors)
1737 if (vs->vtt_basename) {
1738 set_http_options(s, &options, c);
1739 if ((err = hlsenc_io_open(s, &vtt_oc->pb, vtt_oc->url, &options)) < 0) {
1740 if (c->ignore_io_errors)
1745 av_dict_free(&options);
1747 if (vs->vtt_basename) {
1748 err = avformat_write_header(vtt_oc,NULL);
1755 av_dict_free(&options);
1760 static const char * get_default_pattern_localtime_fmt(AVFormatContext *s)
1763 time_t t = time(NULL);
1764 struct tm *p, tmbuf;
1765 HLSContext *hls = s->priv_data;
1767 p = localtime_r(&t, &tmbuf);
1768 // no %s support when strftime returned error or left format string unchanged
1769 // also no %s support on MSVC, which invokes the invalid parameter handler on unsupported format strings, instead of returning an error
1770 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1771 return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.m4s" : "-%s.m4s";
1773 return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts";
1776 static int append_postfix(char *name, int name_buf_len, int i)
1779 char extension[10] = {'\0'};
1781 p = strrchr(name, '.');
1783 av_strlcpy(extension, p, sizeof(extension));
1787 snprintf(name + strlen(name), name_buf_len - strlen(name), POSTFIX_PATTERN, i);
1789 if (strlen(extension))
1790 av_strlcat(name, extension, name_buf_len);
1795 static int validate_name(int nb_vs, const char *fn)
1797 const char *filename, *subdir_name;
1798 char *fn_dup = NULL;
1802 return AVERROR(EINVAL);
1804 fn_dup = av_strdup(fn);
1806 return AVERROR(ENOMEM);
1807 filename = av_basename(fn);
1808 subdir_name = av_dirname(fn_dup);
1810 if (nb_vs > 1 && !av_stristr(filename, "%v") && !av_stristr(subdir_name, "%v")) {
1811 av_log(NULL, AV_LOG_ERROR, "More than 1 variant streams are present, %%v is expected "
1812 "either in the filename or in the sub-directory name of file %s\n", fn);
1813 ret = AVERROR(EINVAL);
1817 if (av_stristr(filename, "%v") && av_stristr(subdir_name, "%v")) {
1818 av_log(NULL, AV_LOG_ERROR, "%%v is expected either in the filename or "
1819 "in the sub-directory name of file %s, but only in one of them\n", fn);
1820 ret = AVERROR(EINVAL);
1829 static int format_name(const char *buf, char **s, int index, const char *varname)
1831 const char *proto, *dir;
1832 char *orig_buf_dup = NULL, *mod_buf_dup = NULL;
1835 orig_buf_dup = av_strdup(buf);
1837 return AVERROR(ENOMEM);
1839 if (!av_stristr(buf, "%v")) {
1845 if (replace_int_data_in_filename(s, orig_buf_dup, 'v', index) < 1) {
1846 ret = AVERROR(EINVAL);
1850 if (replace_str_data_in_filename(s, orig_buf_dup, 'v', varname) < 1) {
1851 ret = AVERROR(EINVAL);
1856 proto = avio_find_protocol_name(orig_buf_dup);
1857 dir = av_dirname(orig_buf_dup);
1859 /* if %v is present in the file's directory, create sub-directory */
1860 if (av_stristr(dir, "%v") && proto && !strcmp(proto, "file")) {
1861 mod_buf_dup = av_strdup(*s);
1862 dir = av_dirname(mod_buf_dup);
1863 if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
1864 ret = AVERROR(errno);
1870 av_freep(&orig_buf_dup);
1871 av_freep(&mod_buf_dup);
1875 static int get_nth_codec_stream_index(AVFormatContext *s,
1876 enum AVMediaType codec_type,
1879 unsigned int stream_index, cnt;
1880 if (stream_id < 0 || stream_id > s->nb_streams - 1)
1883 for (stream_index = 0; stream_index < s->nb_streams; stream_index++) {
1884 if (s->streams[stream_index]->codecpar->codec_type != codec_type)
1886 if (cnt == stream_id)
1887 return stream_index;
1893 static int parse_variant_stream_mapstring(AVFormatContext *s)
1895 HLSContext *hls = s->priv_data;
1897 int stream_index, i, j;
1898 enum AVMediaType codec_type;
1899 int nb_varstreams = 0, nb_streams;
1900 char *p, *q, *saveptr1, *saveptr2, *varstr, *keyval;
1904 * Expected format for var_stream_map string is as below:
1906 * "a:0,agroup:a0,default:1,language:ENG a:1,agroup:a1,default:0 v:0,agroup:a0 v:1,agroup:a1"
1907 * This string specifies how to group the audio, video and subtitle streams
1908 * into different variant streams. The variant stream groups are separated
1911 * a:, v:, s: are keys to specify audio, video and subtitle streams
1912 * respectively. Allowed values are 0 to 9 digits (limited just based on
1915 * agroup: is key to specify audio group. A string can be given as value.
1916 * sgroup: is key to specify subtitle group. A string can be given as value.
1918 p = av_strdup(hls->var_stream_map);
1920 return AVERROR(ENOMEM);
1923 while (av_strtok(q, " \t", &saveptr1)) {
1929 hls->var_streams = av_mallocz(sizeof(*hls->var_streams) * nb_varstreams);
1930 if (!hls->var_streams)
1931 return AVERROR(ENOMEM);
1932 hls->nb_varstreams = nb_varstreams;
1934 p = hls->var_stream_map;
1936 while (varstr = av_strtok(p, " \t", &saveptr1)) {
1939 if (nb_varstreams < hls->nb_varstreams) {
1940 vs = &(hls->var_streams[nb_varstreams]);
1941 vs->var_stream_idx = nb_varstreams;
1945 return AVERROR(EINVAL);
1949 if (!av_strncasecmp(q, "a:", 2) || !av_strncasecmp(q, "v:", 2) ||
1950 !av_strncasecmp(q, "s:", 2))
1957 vs->streams = av_mallocz(sizeof(AVStream *) * vs->nb_streams);
1959 return AVERROR(ENOMEM);
1962 while (keyval = av_strtok(varstr, ",", &saveptr2)) {
1966 if (av_strstart(keyval, "language:", &val)) {
1969 } else if (av_strstart(keyval, "default:", &val)) {
1970 vs->is_default = (!av_strncasecmp(val, "YES", strlen("YES")) ||
1971 (!av_strncasecmp(val, "1", strlen("1"))));
1972 hls->has_default_key = 1;
1974 } else if (av_strstart(keyval, "name:", &val)) {
1977 } else if (av_strstart(keyval, "agroup:", &val)) {
1980 } else if (av_strstart(keyval, "sgroup:", &val)) {
1983 } else if (av_strstart(keyval, "ccgroup:", &val)) {
1986 } else if (av_strstart(keyval, "v:", &val)) {
1987 codec_type = AVMEDIA_TYPE_VIDEO;
1988 hls->has_video_m3u8 = 1;
1989 } else if (av_strstart(keyval, "a:", &val)) {
1990 codec_type = AVMEDIA_TYPE_AUDIO;
1991 } else if (av_strstart(keyval, "s:", &val)) {
1992 codec_type = AVMEDIA_TYPE_SUBTITLE;
1994 av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
1995 return AVERROR(EINVAL);
1998 num = strtoll(val, &end, 10);
1999 if (!av_isdigit(*val) || *end != '\0') {
2000 av_log(s, AV_LOG_ERROR, "Invalid stream number: '%s'\n", val);
2001 return AVERROR(EINVAL);
2003 stream_index = get_nth_codec_stream_index(s, codec_type, num);
2005 if (stream_index >= 0 && nb_streams < vs->nb_streams) {
2006 for (i = 0; nb_streams > 0 && i < nb_streams; i++) {
2007 if (vs->streams[i] == s->streams[stream_index]) {
2008 av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once inside "
2009 "variant definition #%d\n", nb_varstreams - 1);
2010 return AVERROR(EINVAL);
2013 for (j = 0; nb_varstreams > 1 && j < nb_varstreams - 1; j++) {
2014 for (i = 0; i < hls->var_streams[j].nb_streams; i++) {
2015 if (hls->var_streams[j].streams[i] == s->streams[stream_index]) {
2016 av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once "
2017 "in two different variant definitions #%d and #%d\n",
2018 j, nb_varstreams - 1);
2019 return AVERROR(EINVAL);
2023 vs->streams[nb_streams++] = s->streams[stream_index];
2025 av_log(s, AV_LOG_ERROR, "Unable to map stream at %s\n", keyval);
2026 return AVERROR(EINVAL);
2030 av_log(s, AV_LOG_DEBUG, "Number of variant streams %d\n",
2031 hls->nb_varstreams);
2036 static int parse_cc_stream_mapstring(AVFormatContext *s)
2038 HLSContext *hls = s->priv_data;
2039 int nb_ccstreams = 0;
2040 char *p, *q, *ccstr, *keyval;
2041 char *saveptr1 = NULL, *saveptr2 = NULL;
2043 ClosedCaptionsStream *ccs;
2045 p = av_strdup(hls->cc_stream_map);
2047 return AVERROR(ENOMEM);
2050 while (av_strtok(q, " \t", &saveptr1)) {
2056 hls->cc_streams = av_mallocz(sizeof(*hls->cc_streams) * nb_ccstreams);
2057 if (!hls->cc_streams)
2058 return AVERROR(ENOMEM);
2059 hls->nb_ccstreams = nb_ccstreams;
2061 p = hls->cc_stream_map;
2063 while (ccstr = av_strtok(p, " \t", &saveptr1)) {
2066 if (nb_ccstreams < hls->nb_ccstreams)
2067 ccs = &(hls->cc_streams[nb_ccstreams++]);
2069 return AVERROR(EINVAL);
2071 while (keyval = av_strtok(ccstr, ",", &saveptr2)) {
2074 if (av_strstart(keyval, "ccgroup:", &val)) {
2076 } else if (av_strstart(keyval, "instreamid:", &val)) {
2077 ccs->instreamid = val;
2078 } else if (av_strstart(keyval, "language:", &val)) {
2079 ccs->language = val;
2081 av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
2082 return AVERROR(EINVAL);
2086 if (!ccs->ccgroup || !ccs->instreamid) {
2087 av_log(s, AV_LOG_ERROR, "Insufficient parameters in cc stream map string\n");
2088 return AVERROR(EINVAL);
2091 if (av_strstart(ccs->instreamid, "CC", &val)) {
2092 if (atoi(val) < 1 || atoi(val) > 4) {
2093 av_log(s, AV_LOG_ERROR, "Invalid instream ID CC index %d in %s, range 1-4\n",
2094 atoi(val), ccs->instreamid);
2095 return AVERROR(EINVAL);
2097 } else if (av_strstart(ccs->instreamid, "SERVICE", &val)) {
2098 if (atoi(val) < 1 || atoi(val) > 63) {
2099 av_log(s, AV_LOG_ERROR, "Invalid instream ID SERVICE index %d in %s, range 1-63 \n",
2100 atoi(val), ccs->instreamid);
2101 return AVERROR(EINVAL);
2104 av_log(s, AV_LOG_ERROR, "Invalid instream ID %s, supported are CCn or SERVICEn\n",
2106 return AVERROR(EINVAL);
2113 static int update_variant_stream_info(AVFormatContext *s)
2115 HLSContext *hls = s->priv_data;
2119 if (hls->cc_stream_map) {
2120 ret = parse_cc_stream_mapstring(s);
2125 if (hls->var_stream_map) {
2126 return parse_variant_stream_mapstring(s);
2128 //By default, a single variant stream with all the codec streams is created
2129 hls->var_streams = av_mallocz(sizeof(*hls->var_streams));
2130 if (!hls->var_streams)
2131 return AVERROR(ENOMEM);
2132 hls->nb_varstreams = 1;
2134 hls->var_streams[0].var_stream_idx = 0;
2135 hls->var_streams[0].nb_streams = s->nb_streams;
2136 hls->var_streams[0].streams = av_mallocz(sizeof(AVStream *) *
2137 hls->var_streams[0].nb_streams);
2138 if (!hls->var_streams[0].streams)
2139 return AVERROR(ENOMEM);
2141 //by default, the first available ccgroup is mapped to the variant stream
2142 if (hls->nb_ccstreams)
2143 hls->var_streams[0].ccgroup = hls->cc_streams[0].ccgroup;
2145 for (i = 0; i < s->nb_streams; i++)
2146 hls->var_streams[0].streams[i] = s->streams[i];
2151 static int update_master_pl_info(AVFormatContext *s)
2153 HLSContext *hls = s->priv_data;
2155 char *fn1= NULL, *fn2 = NULL;
2158 fn1 = av_strdup(s->url);
2160 return AVERROR(ENOMEM);
2161 dir = av_dirname(fn1);
2164 * if output file's directory has %v, variants are created in sub-directories
2165 * then master is created at the sub-directories level
2167 if (dir && av_stristr(av_basename(dir), "%v")) {
2168 fn2 = av_strdup(dir);
2170 ret = AVERROR(ENOMEM);
2173 dir = av_dirname(fn2);
2176 if (dir && strcmp(dir, "."))
2177 hls->master_m3u8_url = av_append_path_component(dir, hls->master_pl_name);
2179 hls->master_m3u8_url = av_strdup(hls->master_pl_name);
2181 if (!hls->master_m3u8_url) {
2182 ret = AVERROR(ENOMEM);
2193 static int hls_write_header(AVFormatContext *s)
2195 HLSContext *hls = s->priv_data;
2197 VariantStream *vs = NULL;
2199 for (i = 0; i < hls->nb_varstreams; i++) {
2200 vs = &hls->var_streams[i];
2202 ret = avformat_write_header(vs->avf, NULL);
2205 //av_assert0(s->nb_streams == hls->avf->nb_streams);
2206 for (j = 0; j < vs->nb_streams; j++) {
2208 AVStream *outer_st = vs->streams[j];
2210 if (hls->max_seg_size > 0) {
2211 if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
2212 (outer_st->codecpar->bit_rate > hls->max_seg_size)) {
2213 av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, "
2214 "(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.",
2215 outer_st->codecpar->bit_rate, hls->max_seg_size);
2219 if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
2220 inner_st = vs->avf->streams[j];
2221 else if (vs->vtt_avf)
2222 inner_st = vs->vtt_avf->streams[0];
2224 /* We have a subtitle stream, when the user does not want one */
2228 avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
2229 write_codec_attr(outer_st, vs);
2232 /* Update the Codec Attr string for the mapped audio groups */
2233 if (vs->has_video && vs->agroup) {
2234 for (j = 0; j < hls->nb_varstreams; j++) {
2235 VariantStream *vs_agroup = &(hls->var_streams[j]);
2236 if (!vs_agroup->has_video && !vs_agroup->has_subtitle &&
2237 vs_agroup->agroup &&
2238 !av_strcasecmp(vs_agroup->agroup, vs->agroup)) {
2239 write_codec_attr(vs_agroup->streams[0], vs);
2248 static int hls_init_file_resend(AVFormatContext *s, VariantStream *vs)
2250 HLSContext *hls = s->priv_data;
2251 AVDictionary *options = NULL;
2254 set_http_options(s, &options, hls);
2255 ret = hlsenc_io_open(s, &vs->out, vs->base_output_dirname, &options);
2256 av_dict_free(&options);
2259 avio_write(vs->out, vs->init_buffer, vs->init_range_length);
2260 hlsenc_io_close(s, &vs->out, hls->fmp4_init_filename);
2265 static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
2267 HLSContext *hls = s->priv_data;
2268 AVFormatContext *oc = NULL;
2269 AVStream *st = s->streams[pkt->stream_index];
2270 int64_t end_pts = 0;
2272 int ret = 0, can_split = 1, i, j;
2273 int stream_index = 0;
2274 int range_length = 0;
2275 const char *proto = NULL;
2276 int use_temp_file = 0;
2277 VariantStream *vs = NULL;
2278 char *old_filename = NULL;
2280 for (i = 0; i < hls->nb_varstreams; i++) {
2281 vs = &hls->var_streams[i];
2282 for (j = 0; j < vs->nb_streams; j++) {
2283 if (vs->streams[j] == st) {
2284 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2300 av_log(s, AV_LOG_ERROR, "Unable to find mapping variant stream\n");
2301 return AVERROR(ENOMEM);
2304 end_pts = hls->recording_time * vs->number;
2306 if (vs->sequence - vs->nb_entries > hls->start_sequence && hls->init_time > 0) {
2307 /* reset end_pts, hls->recording_time at end of the init hls list */
2308 int64_t init_list_dur = hls->init_time * vs->nb_entries * AV_TIME_BASE;
2309 int64_t after_init_list_dur = (vs->sequence - hls->start_sequence - vs->nb_entries) * (hls->time * AV_TIME_BASE);
2310 hls->recording_time = hls->time * AV_TIME_BASE;
2311 end_pts = init_list_dur + after_init_list_dur ;
2314 if (vs->start_pts == AV_NOPTS_VALUE) {
2315 vs->start_pts = pkt->pts;
2316 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
2317 vs->start_pts_from_audio = 1;
2319 if (vs->start_pts_from_audio && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && vs->start_pts > pkt->pts) {
2320 vs->start_pts = pkt->pts;
2321 vs->start_pts_from_audio = 0;
2324 if (vs->has_video) {
2325 can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
2326 ((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME));
2327 is_ref_pkt = (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->stream_index == vs->reference_stream_index);
2329 if (pkt->pts == AV_NOPTS_VALUE)
2330 is_ref_pkt = can_split = 0;
2333 if (vs->end_pts == AV_NOPTS_VALUE)
2334 vs->end_pts = pkt->pts;
2335 if (vs->new_start) {
2337 vs->duration = (double)(pkt->pts - vs->end_pts)
2338 * st->time_base.num / st->time_base.den;
2339 vs->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den;
2341 if (pkt->duration) {
2342 vs->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den;
2344 av_log(s, AV_LOG_WARNING, "pkt->duration = 0, maybe the hls segment duration will not precise\n");
2345 vs->duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den;
2351 if (vs->packets_written && can_split && av_compare_ts(pkt->pts - vs->start_pts, st->time_base,
2352 end_pts, AV_TIME_BASE_Q) >= 0) {
2353 int64_t new_start_pos;
2354 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
2356 av_write_frame(oc, NULL); /* Flush any buffered data */
2357 new_start_pos = avio_tell(oc->pb);
2358 vs->size = new_start_pos - vs->start_pos;
2360 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2361 if (!vs->init_range_length) {
2362 range_length = avio_close_dyn_buf(oc->pb, &vs->init_buffer);
2363 if (range_length <= 0)
2364 return AVERROR(EINVAL);
2365 avio_write(vs->out, vs->init_buffer, range_length);
2366 if (!hls->resend_init_file)
2367 av_freep(&vs->init_buffer);
2368 vs->init_range_length = range_length;
2369 avio_open_dyn_buf(&oc->pb);
2370 vs->packets_written = 0;
2371 vs->start_pos = range_length;
2372 if (!byterange_mode) {
2373 hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
2377 if (!byterange_mode) {
2379 hlsenc_io_close(s, &vs->vtt_avf->pb, vs->vtt_avf->url);
2383 if (hls->flags & HLS_SINGLE_FILE) {
2384 ret = flush_dynbuf(vs, &range_length);
2385 av_freep(&vs->temp_buffer);
2389 vs->size = range_length;
2392 proto = avio_find_protocol_name(oc->url);
2393 use_temp_file = proto && !strcmp(proto, "file")
2394 && (hls->flags & HLS_TEMP_FILE);
2397 if ((hls->max_seg_size > 0 && (vs->size >= hls->max_seg_size)) || !byterange_mode) {
2398 AVDictionary *options = NULL;
2399 char *filename = NULL;
2400 if (hls->key_info_file || hls->encrypt) {
2401 av_dict_set(&options, "encryption_key", vs->key_string, 0);
2402 av_dict_set(&options, "encryption_iv", vs->iv_string, 0);
2403 filename = av_asprintf("crypto:%s", oc->url);
2405 filename = av_asprintf("%s", oc->url);
2408 av_dict_free(&options);
2409 return AVERROR(ENOMEM);
2412 // look to rename the asset name
2414 av_dict_set(&options, "mpegts_flags", "resend_headers", 0);
2416 set_http_options(s, &options, hls);
2418 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2420 av_log(s, hls->ignore_io_errors ? AV_LOG_WARNING : AV_LOG_ERROR,
2421 "Failed to open file '%s'\n", filename);
2422 av_freep(&filename);
2423 av_dict_free(&options);
2424 return hls->ignore_io_errors ? 0 : ret;
2426 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2427 write_styp(vs->out);
2429 ret = flush_dynbuf(vs, &range_length);
2431 av_freep(&filename);
2432 av_dict_free(&options);
2435 ret = hlsenc_io_close(s, &vs->out, filename);
2437 av_log(s, AV_LOG_WARNING, "upload segment failed,"
2438 " will retry with a new http session.\n");
2439 ff_format_io_close(s, &vs->out);
2440 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2441 reflush_dynbuf(vs, &range_length);
2442 ret = hlsenc_io_close(s, &vs->out, filename);
2444 av_dict_free(&options);
2445 av_freep(&vs->temp_buffer);
2446 av_freep(&filename);
2450 hls_rename_temp_file(s, oc);
2453 old_filename = av_strdup(oc->url);
2454 if (!old_filename) {
2455 return AVERROR(ENOMEM);
2458 if (vs->start_pos || hls->segment_type != SEGMENT_TYPE_FMP4) {
2459 double cur_duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den;
2460 ret = hls_append_segment(s, hls, vs, cur_duration, vs->start_pos, vs->size);
2461 vs->end_pts = pkt->pts;
2464 av_freep(&old_filename);
2469 // if we're building a VOD playlist, skip writing the manifest multiple times, and just wait until the end
2470 if (hls->pl_type != PLAYLIST_TYPE_VOD) {
2471 if ((ret = hls_window(s, 0, vs)) < 0) {
2472 av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
2473 ff_format_io_close(s, &vs->out);
2474 if ((ret = hls_window(s, 0, vs)) < 0) {
2475 av_freep(&old_filename);
2481 if (hls->resend_init_file && hls->segment_type == SEGMENT_TYPE_FMP4) {
2482 ret = hls_init_file_resend(s, vs);
2484 av_freep(&old_filename);
2489 if (hls->flags & HLS_SINGLE_FILE) {
2490 vs->start_pos += vs->size;
2491 } else if (hls->max_seg_size > 0) {
2492 vs->start_pos = new_start_pos;
2493 if (vs->size >= hls->max_seg_size) {
2495 sls_flag_file_rename(hls, vs, old_filename);
2496 ret = hls_start(s, vs);
2498 /* When split segment by byte, the duration is short than hls_time,
2499 * so it is not enough one segment duration as hls_time, */
2502 vs->start_pos = new_start_pos;
2503 sls_flag_file_rename(hls, vs, old_filename);
2504 ret = hls_start(s, vs);
2507 av_freep(&old_filename);
2515 vs->packets_written++;
2517 ret = ff_write_chained(oc, stream_index, pkt, s, 0);
2518 vs->video_keyframe_size += pkt->size;
2519 if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->flags & AV_PKT_FLAG_KEY)) {
2520 vs->video_keyframe_size = avio_tell(oc->pb);
2522 vs->video_keyframe_pos = avio_tell(vs->out);
2524 if (hls->ignore_io_errors)
2531 static void hls_deinit(AVFormatContext *s)
2533 HLSContext *hls = s->priv_data;
2535 VariantStream *vs = NULL;
2537 for (i = 0; i < hls->nb_varstreams; i++) {
2538 vs = &hls->var_streams[i];
2540 av_freep(&vs->basename);
2541 av_freep(&vs->base_output_dirname);
2542 av_freep(&vs->fmp4_init_filename);
2543 av_freep(&vs->vtt_basename);
2544 av_freep(&vs->vtt_m3u8_name);
2546 avformat_free_context(vs->vtt_avf);
2547 avformat_free_context(vs->avf);
2548 if (hls->resend_init_file)
2549 av_freep(&vs->init_buffer);
2550 hls_free_segments(vs->segments);
2551 hls_free_segments(vs->old_segments);
2552 av_freep(&vs->m3u8_name);
2553 av_freep(&vs->streams);
2556 ff_format_io_close(s, &hls->m3u8_out);
2557 ff_format_io_close(s, &hls->sub_m3u8_out);
2558 av_freep(&hls->key_basename);
2559 av_freep(&hls->var_streams);
2560 av_freep(&hls->cc_streams);
2561 av_freep(&hls->master_m3u8_url);
2564 static int hls_write_trailer(struct AVFormatContext *s)
2566 HLSContext *hls = s->priv_data;
2567 AVFormatContext *oc = NULL;
2568 AVFormatContext *vtt_oc = NULL;
2569 char *old_filename = NULL;
2570 const char *proto = NULL;
2571 int use_temp_file = 0;
2574 VariantStream *vs = NULL;
2575 AVDictionary *options = NULL;
2576 int range_length, byterange_mode;
2578 for (i = 0; i < hls->nb_varstreams; i++) {
2579 char *filename = NULL;
2580 vs = &hls->var_streams[i];
2582 vtt_oc = vs->vtt_avf;
2583 old_filename = av_strdup(oc->url);
2586 if (!old_filename) {
2587 return AVERROR(ENOMEM);
2589 if (hls->key_info_file || hls->encrypt) {
2590 av_dict_set(&options, "encryption_key", vs->key_string, 0);
2591 av_dict_set(&options, "encryption_iv", vs->iv_string, 0);
2592 filename = av_asprintf("crypto:%s", oc->url);
2594 filename = av_asprintf("%s", oc->url);
2597 av_freep(&old_filename);
2598 return AVERROR(ENOMEM);
2601 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2602 int range_length = 0;
2603 if (!vs->init_range_length) {
2604 uint8_t *buffer = NULL;
2605 av_write_frame(oc, NULL); /* Flush any buffered data */
2607 range_length = avio_close_dyn_buf(oc->pb, &buffer);
2608 avio_write(vs->out, buffer, range_length);
2610 vs->init_range_length = range_length;
2611 avio_open_dyn_buf(&oc->pb);
2612 vs->packets_written = 0;
2613 vs->start_pos = range_length;
2614 byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
2615 if (!byterange_mode) {
2616 ff_format_io_close(s, &vs->out);
2617 hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
2621 if (!(hls->flags & HLS_SINGLE_FILE)) {
2622 set_http_options(s, &options, hls);
2623 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2625 av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
2628 if (hls->segment_type == SEGMENT_TYPE_FMP4)
2629 write_styp(vs->out);
2631 ret = flush_dynbuf(vs, &range_length);
2635 vs->size = range_length;
2636 hlsenc_io_close(s, &vs->out, filename);
2637 ret = hlsenc_io_close(s, &vs->out, filename);
2639 av_log(s, AV_LOG_WARNING, "upload segment failed, will retry with a new http session.\n");
2640 ff_format_io_close(s, &vs->out);
2641 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2643 av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
2646 reflush_dynbuf(vs, &range_length);
2647 ret = hlsenc_io_close(s, &vs->out, filename);
2649 av_log(s, AV_LOG_WARNING, "Failed to upload file '%s' at the end.\n", oc->url);
2653 av_freep(&vs->temp_buffer);
2654 av_dict_free(&options);
2655 av_freep(&filename);
2656 av_write_trailer(oc);
2658 proto = avio_find_protocol_name(oc->url);
2659 use_temp_file = proto && !strcmp(proto, "file") && (hls->flags & HLS_TEMP_FILE);
2662 // rename that segment from .tmp to the real one
2663 if (use_temp_file && !(hls->flags & HLS_SINGLE_FILE)) {
2664 hls_rename_temp_file(s, oc);
2665 av_freep(&old_filename);
2666 old_filename = av_strdup(oc->url);
2668 if (!old_filename) {
2669 return AVERROR(ENOMEM);
2673 /* after av_write_trailer, then duration + 1 duration per packet */
2674 hls_append_segment(s, hls, vs, vs->duration + vs->dpp, vs->start_pos, vs->size);
2676 sls_flag_file_rename(hls, vs, old_filename);
2680 av_write_trailer(vtt_oc);
2681 vs->size = avio_tell(vs->vtt_avf->pb) - vs->start_pos;
2682 ff_format_io_close(s, &vtt_oc->pb);
2684 ret = hls_window(s, 1, vs);
2686 av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
2687 ff_format_io_close(s, &vs->out);
2688 hls_window(s, 1, vs);
2690 ffio_free_dyn_buf(&oc->pb);
2692 av_free(old_filename);
2699 static int hls_init(AVFormatContext *s)
2704 HLSContext *hls = s->priv_data;
2705 const char *pattern;
2706 VariantStream *vs = NULL;
2707 const char *vtt_pattern = hls->flags & HLS_SINGLE_FILE ? ".vtt" : "%d.vtt";
2709 int http_base_proto = ff_is_http_proto(s->url);
2710 int fmp4_init_filename_len = strlen(hls->fmp4_init_filename) + 1;
2712 if (hls->use_localtime) {
2713 pattern = get_default_pattern_localtime_fmt(s);
2715 pattern = hls->segment_type == SEGMENT_TYPE_FMP4 ? "%d.m4s" : "%d.ts";
2716 if (hls->flags & HLS_SINGLE_FILE)
2720 hls->has_default_key = 0;
2721 hls->has_video_m3u8 = 0;
2722 ret = update_variant_stream_info(s);
2724 av_log(s, AV_LOG_ERROR, "Variant stream info update failed with status %x\n",
2729 if (!hls->method && http_base_proto) {
2730 av_log(hls, AV_LOG_WARNING, "No HTTP method set, hls muxer defaulting to method PUT.\n");
2733 ret = validate_name(hls->nb_varstreams, s->url);
2737 if (hls->segment_filename) {
2738 ret = validate_name(hls->nb_varstreams, hls->segment_filename);
2743 if (av_strcasecmp(hls->fmp4_init_filename, "init.mp4")) {
2744 ret = validate_name(hls->nb_varstreams, hls->fmp4_init_filename);
2749 if (hls->subtitle_filename) {
2750 ret = validate_name(hls->nb_varstreams, hls->subtitle_filename);
2755 if (hls->master_pl_name) {
2756 ret = update_master_pl_info(s);
2758 av_log(s, AV_LOG_ERROR, "Master stream info update failed with status %x\n",
2764 if ((hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) ||
2765 (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH) ||
2766 (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME)) {
2767 time_t t = time(NULL);
2768 if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH) {
2769 hls->start_sequence = av_gettime();
2770 } else if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) {
2771 hls->start_sequence = (int64_t)t;
2772 } else if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME) {
2774 struct tm *p, tmbuf;
2775 if (!(p = localtime_r(&t, &tmbuf)))
2776 return AVERROR(errno);
2777 if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p))
2778 return AVERROR(ENOMEM);
2779 hls->start_sequence = strtoll(b, NULL, 10);
2781 av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
2784 hls->recording_time = (hls->init_time ? hls->init_time : hls->time) * AV_TIME_BASE;
2786 if (hls->flags & HLS_SPLIT_BY_TIME && hls->flags & HLS_INDEPENDENT_SEGMENTS) {
2787 // Independent segments cannot be guaranteed when splitting by time
2788 hls->flags &= ~HLS_INDEPENDENT_SEGMENTS;
2789 av_log(s, AV_LOG_WARNING,
2790 "'split_by_time' and 'independent_segments' cannot be "
2791 "enabled together. Disabling 'independent_segments' flag\n");
2794 for (i = 0; i < hls->nb_varstreams; i++) {
2795 vs = &hls->var_streams[i];
2797 ret = format_name(s->url, &vs->m3u8_name, i, vs->varname);
2801 vs->sequence = hls->start_sequence;
2802 vs->start_pts = AV_NOPTS_VALUE;
2803 vs->end_pts = AV_NOPTS_VALUE;
2804 vs->current_segment_final_filename_fmt[0] = '\0';
2806 if (hls->flags & HLS_PROGRAM_DATE_TIME) {
2809 vs->initial_prog_date_time = now0;
2812 for (j = 0; j < vs->nb_streams; j++) {
2813 vs->has_video += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO;
2814 /* Get one video stream to reference for split segments
2815 * so use the first video stream index. */
2816 if ((vs->has_video == 1) && (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)) {
2817 vs->reference_stream_index = vs->streams[j]->index;
2819 vs->has_subtitle += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE;
2822 if (vs->has_video > 1)
2823 av_log(s, AV_LOG_WARNING, "More than a single video stream present, expect issues decoding it.\n");
2824 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2825 vs->oformat = av_guess_format("mp4", NULL, NULL);
2827 vs->oformat = av_guess_format("mpegts", NULL, NULL);
2830 return AVERROR_MUXER_NOT_FOUND;
2832 if (hls->segment_filename) {
2833 ret = format_name(hls->segment_filename, &vs->basename, i, vs->varname);
2837 p = strrchr(vs->m3u8_name, '.');
2841 vs->basename = av_asprintf("%s%s", vs->m3u8_name, pattern);
2843 return AVERROR(ENOMEM);
2849 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2850 if (hls->nb_varstreams > 1)
2851 fmp4_init_filename_len += strlen(POSTFIX_PATTERN);
2852 if (hls->flags & HLS_SINGLE_FILE) {
2853 vs->fmp4_init_filename = av_strdup(vs->basename);
2854 if (!vs->fmp4_init_filename)
2855 return AVERROR(ENOMEM);
2857 vs->fmp4_init_filename = av_malloc(fmp4_init_filename_len);
2858 if (!vs->fmp4_init_filename)
2859 return AVERROR(ENOMEM);
2860 av_strlcpy(vs->fmp4_init_filename, hls->fmp4_init_filename,
2861 fmp4_init_filename_len);
2862 if (hls->nb_varstreams > 1) {
2863 if (av_stristr(vs->fmp4_init_filename, "%v")) {
2864 av_freep(&vs->fmp4_init_filename);
2865 ret = format_name(hls->fmp4_init_filename,
2866 &vs->fmp4_init_filename, i, vs->varname);
2868 ret = append_postfix(vs->fmp4_init_filename, fmp4_init_filename_len, i);
2874 p = strrchr(vs->m3u8_name, '/');
2878 vs->base_output_dirname = av_asprintf("%s%s", vs->m3u8_name,
2879 vs->fmp4_init_filename);
2882 vs->base_output_dirname = av_strdup(vs->fmp4_init_filename);
2884 if (!vs->base_output_dirname)
2885 return AVERROR(ENOMEM);
2889 ret = hls->use_localtime ? sls_flag_check_duration_size(hls, vs) : sls_flag_check_duration_size_index(hls);
2893 if (vs->has_subtitle) {
2894 vs->vtt_oformat = av_guess_format("webvtt", NULL, NULL);
2895 if (!vs->vtt_oformat)
2896 return AVERROR_MUXER_NOT_FOUND;
2898 p = strrchr(vs->m3u8_name, '.');
2902 vs->vtt_basename = av_asprintf("%s%s", vs->m3u8_name, vtt_pattern);
2903 if (!vs->vtt_basename)
2904 return AVERROR(ENOMEM);
2906 if (hls->subtitle_filename) {
2907 ret = format_name(hls->subtitle_filename, &vs->vtt_m3u8_name, i, vs->varname);
2911 vs->vtt_m3u8_name = av_asprintf("%s_vtt.m3u8", vs->m3u8_name);
2912 if (!vs->vtt_m3u8_name)
2913 return AVERROR(ENOMEM);
2919 if ((ret = hls_mux_init(s, vs)) < 0)
2922 if (hls->flags & HLS_APPEND_LIST) {
2923 parse_playlist(s, vs->m3u8_name, vs);
2924 vs->discontinuity = 1;
2925 if (hls->init_time > 0) {
2926 av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
2927 " hls_init_time value will have no effect\n");
2929 hls->recording_time = hls->time * AV_TIME_BASE;
2933 if ((ret = hls_start(s, vs)) < 0)
2941 #define OFFSET(x) offsetof(HLSContext, x)
2942 #define E AV_OPT_FLAG_ENCODING_PARAM
2943 static const AVOption options[] = {
2944 {"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
2945 {"hls_time", "set segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
2946 {"hls_init_time", "set segment length in seconds at init list", OFFSET(init_time), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0, FLT_MAX, E},
2947 {"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
2948 {"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},
2949 {"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},
2950 {"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},
2952 {"hls_wrap", "set number after which the index wraps (will be deprecated)", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
2954 {"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},
2955 {"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2956 {"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2957 {"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
2958 {"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},
2959 {"hls_enc", "enable AES128 encryption support", OFFSET(encrypt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E},
2960 {"hls_enc_key", "hex-coded 16 byte key to encrypt the segments", OFFSET(key), AV_OPT_TYPE_STRING, .flags = E},
2961 {"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},
2962 {"hls_enc_iv", "hex-coded 16 byte initialization vector", OFFSET(iv), AV_OPT_TYPE_STRING, .flags = E},
2963 {"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2964 {"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"},
2965 {"mpegts", "make segment file to mpegts files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, UINT_MAX, E, "segment_type"},
2966 {"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"},
2967 {"hls_fmp4_init_filename", "set fragment mp4 file init filename", OFFSET(fmp4_init_filename), AV_OPT_TYPE_STRING, {.str = "init.mp4"}, 0, 0, E},
2968 {"hls_fmp4_init_resend", "resend fragment mp4 init file after refresh m3u8 every time", OFFSET(resend_init_file), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
2969 {"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
2970 {"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"},
2971 {"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"},
2972 {"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"},
2973 {"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, "flags"},
2974 {"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, "flags"},
2975 {"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, "flags"},
2976 {"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"},
2977 {"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"},
2978 {"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
2979 {"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"},
2980 {"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"},
2981 {"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"},
2982 {"periodic_rekey", "reload keyinfo file periodically for re-keying", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PERIODIC_REKEY }, 0, UINT_MAX, E, "flags"},
2983 {"independent_segments", "add EXT-X-INDEPENDENT-SEGMENTS, whenever applicable", 0, AV_OPT_TYPE_CONST, { .i64 = HLS_INDEPENDENT_SEGMENTS }, 0, UINT_MAX, E, "flags"},
2984 {"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"},
2985 #if FF_API_HLS_USE_LOCALTIME
2986 {"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 },
2988 {"strftime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
2989 #if FF_API_HLS_USE_LOCALTIME
2990 {"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 },
2992 {"strftime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
2993 {"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" },
2994 {"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, "pl_type" },
2995 {"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, "pl_type" },
2996 {"method", "set the HTTP method(default: PUT)", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
2997 {"hls_start_number_source", "set source of first number in sequence", OFFSET(start_sequence_source_type), AV_OPT_TYPE_INT, {.i64 = HLS_START_SEQUENCE_AS_START_NUMBER }, 0, HLS_START_SEQUENCE_LAST-1, E, "start_sequence_source_type" },
2998 {"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" },
2999 {"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" },
3000 {"epoch_us", "microseconds since epoch", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
3001 {"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" },
3002 {"http_user_agent", "override User-Agent field in HTTP header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3003 {"var_stream_map", "Variant stream map string", OFFSET(var_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3004 {"cc_stream_map", "Closed captions stream map string", OFFSET(cc_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3005 {"master_pl_name", "Create HLS master playlist with this name", OFFSET(master_pl_name), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3006 {"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},
3007 {"http_persistent", "Use persistent HTTP connections", OFFSET(http_persistent), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
3008 {"timeout", "set timeout for socket I/O operations", OFFSET(timeout), AV_OPT_TYPE_DURATION, { .i64 = -1 }, -1, INT_MAX, .flags = E },
3009 {"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 },
3010 {"headers", "set custom HTTP headers, can override built in default headers", OFFSET(headers), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
3014 static const AVClass hls_class = {
3015 .class_name = "hls muxer",
3016 .item_name = av_default_item_name,
3018 .version = LIBAVUTIL_VERSION_INT,
3022 AVOutputFormat ff_hls_muxer = {
3024 .long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
3025 .extensions = "m3u8",
3026 .priv_data_size = sizeof(HLSContext),
3027 .audio_codec = AV_CODEC_ID_AAC,
3028 .video_codec = AV_CODEC_ID_H264,
3029 .subtitle_codec = AV_CODEC_ID_WEBVTT,
3030 .flags = AVFMT_NOFILE | AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_NODIMENSIONS,
3032 .write_header = hls_write_header,
3033 .write_packet = hls_write_packet,
3034 .write_trailer = hls_write_trailer,
3035 .deinit = hls_deinit,
3036 .priv_class = &hls_class,