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;
122 uint8_t *init_buffer;
124 AVFormatContext *avf;
125 AVFormatContext *vtt_avf;
130 int start_pts_from_audio;
131 double dpp; // duration per packet
134 int64_t video_lastpos;
135 int64_t video_keyframe_pos;
136 int64_t video_keyframe_size;
137 double duration; // last segment duration computed so far, in seconds
138 int64_t start_pos; // last segment starting position
139 int64_t size; // last segment size
141 int discontinuity_set;
143 int reference_stream_index;
145 HLSSegment *segments;
146 HLSSegment *last_segment;
147 HLSSegment *old_segments;
154 double initial_prog_date_time;
155 char current_segment_final_filename_fmt[MAX_URL_SIZE]; // when renaming segments
157 char *fmp4_init_filename;
158 char *base_output_dirname;
161 char codec_attr[128];
162 CodecAttributeStatus attr_status;
163 unsigned int nb_streams;
164 int m3u8_created; /* status of media play-list creation */
165 int is_default; /* default status of audio group */
166 char *language; /* audio lauguage name */
167 char *agroup; /* audio group name */
168 char *sgroup; /* subtitle group name */
169 char *ccgroup; /* closed caption group name */
171 char *varname; // variant name
174 typedef struct ClosedCaptionsStream {
175 char *ccgroup; /* closed caption group name */
176 char *instreamid; /* closed captions INSTREAM-ID */
177 char *language; /* closed captions langauge */
178 } ClosedCaptionsStream;
180 typedef struct HLSContext {
181 const AVClass *class; // Class for private options.
182 int64_t start_sequence;
183 uint32_t start_sequence_source_type; // enum StartSequenceSourceType
185 float time; // Set by a private option.
186 float init_time; // Set by a private option.
187 int max_nb_segments; // Set by a private option.
188 int hls_delete_threshold; // Set by a private option.
190 int wrap; // Set by a private option.
192 uint32_t flags; // enum HLSFlags
193 uint32_t pl_type; // enum PlaylistType
194 char *segment_filename;
195 char *fmp4_init_filename;
197 int resend_init_file; ///< resend init file into disk after refresh m3u8
199 int use_localtime; ///< flag to expand filename with localtime
200 int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
202 int64_t recording_time;
203 int64_t max_seg_size; // every segment file max size
206 char *vtt_format_options_str;
207 char *subtitle_filename;
208 AVDictionary *format_options;
218 char key_file[LINE_BUFFER_SIZE + 1];
219 char key_uri[LINE_BUFFER_SIZE + 1];
220 char key_string[KEYSIZE*2 + 1];
221 char iv_string[KEYSIZE*2 + 1];
222 AVDictionary *vtt_format_options;
227 VariantStream *var_streams;
228 unsigned int nb_varstreams;
229 ClosedCaptionsStream *cc_streams;
230 unsigned int nb_ccstreams;
232 int master_m3u8_created; /* status of master play-list creation */
233 char *master_m3u8_url; /* URL of the master m3u8 file */
234 int version; /* HLS version */
235 char *var_stream_map; /* user specified variant stream map string */
236 char *cc_stream_map; /* user specified closed caption streams map string */
237 char *master_pl_name;
238 unsigned int master_publish_rate;
240 AVIOContext *m3u8_out;
241 AVIOContext *sub_m3u8_out;
243 int ignore_io_errors;
245 int has_default_key; /* has DEFAULT field of var_stream_map */
246 int has_video_m3u8; /* has video stream m3u8 list */
249 static int hlsenc_io_open(AVFormatContext *s, AVIOContext **pb, char *filename,
250 AVDictionary **options)
252 HLSContext *hls = s->priv_data;
253 int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
254 int err = AVERROR_MUXER_NOT_FOUND;
255 if (!*pb || !http_base_proto || !hls->http_persistent) {
256 err = s->io_open(s, pb, filename, AVIO_FLAG_WRITE, options);
257 #if CONFIG_HTTP_PROTOCOL
259 URLContext *http_url_context = ffio_geturlcontext(*pb);
260 av_assert0(http_url_context);
261 err = ff_http_do_new_request(http_url_context, filename);
263 ff_format_io_close(s, pb);
270 static int hlsenc_io_close(AVFormatContext *s, AVIOContext **pb, char *filename)
272 HLSContext *hls = s->priv_data;
273 int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
277 if (!http_base_proto || !hls->http_persistent || hls->key_info_file || hls->encrypt) {
278 ff_format_io_close(s, pb);
279 #if CONFIG_HTTP_PROTOCOL
281 URLContext *http_url_context = ffio_geturlcontext(*pb);
282 av_assert0(http_url_context);
284 ffurl_shutdown(http_url_context, AVIO_FLAG_WRITE);
285 ret = ff_http_get_shutdown_status(http_url_context);
291 static void set_http_options(AVFormatContext *s, AVDictionary **options, HLSContext *c)
293 int http_base_proto = ff_is_http_proto(s->url);
296 av_dict_set(options, "method", c->method, 0);
297 } else if (http_base_proto) {
298 av_dict_set(options, "method", "PUT", 0);
301 av_dict_set(options, "user_agent", c->user_agent, 0);
302 if (c->http_persistent)
303 av_dict_set_int(options, "multiple_requests", 1, 0);
305 av_dict_set_int(options, "timeout", c->timeout, 0);
307 av_dict_set(options, "headers", c->headers, 0);
310 static void write_codec_attr(AVStream *st, VariantStream *vs)
312 int codec_strlen = strlen(vs->codec_attr);
315 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
317 if (vs->attr_status == CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN)
320 if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
321 uint8_t *data = st->codecpar->extradata;
322 if (data && (data[0] | data[1] | data[2]) == 0 && data[3] == 1 && (data[4] & 0x1F) == 7) {
323 snprintf(attr, sizeof(attr),
324 "avc1.%02x%02x%02x", data[5], data[6], data[7]);
328 } else if (st->codecpar->codec_id == AV_CODEC_ID_MP2) {
329 snprintf(attr, sizeof(attr), "mp4a.40.33");
330 } else if (st->codecpar->codec_id == AV_CODEC_ID_MP3) {
331 snprintf(attr, sizeof(attr), "mp4a.40.34");
332 } else if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
333 /* TODO : For HE-AAC, HE-AACv2, the last digit needs to be set to 5 and 29 respectively */
334 snprintf(attr, sizeof(attr), "mp4a.40.2");
335 } else if (st->codecpar->codec_id == AV_CODEC_ID_AC3) {
336 snprintf(attr, sizeof(attr), "ac-3");
337 } else if (st->codecpar->codec_id == AV_CODEC_ID_EAC3) {
338 snprintf(attr, sizeof(attr), "ec-3");
342 // Don't write the same attribute multiple times
343 if (!av_stristr(vs->codec_attr, attr)) {
344 snprintf(vs->codec_attr + codec_strlen,
345 sizeof(vs->codec_attr) - codec_strlen,
346 "%s%s", codec_strlen ? "," : "", attr);
351 vs->codec_attr[0] = '\0';
352 vs->attr_status = CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN;
356 static int replace_str_data_in_filename(char **s, const char *filename, char placeholder, const char *datastring)
365 av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
372 if (c == '%' && *(p+1) == '%') // %%
374 else if (c == '%' && *(p+1) == placeholder) {
375 av_bprintf(&buf, "%s", datastring);
382 if (addchar_count > 0) {
383 av_bprint_append_data(&buf, p, addchar_count);
387 if (!av_bprint_is_complete(&buf)) {
388 av_bprint_finalize(&buf, NULL);
391 if (av_bprint_finalize(&buf, &new_filename) < 0 || !new_filename)
397 static int replace_int_data_in_filename(char **s, const char *filename, char placeholder, int64_t number)
402 int nd, addchar_count;
406 av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
413 if (c == '%' && *(p+1) == '%') // %%
415 else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) {
418 while (av_isdigit(*(p + addchar_count))) {
419 nd = nd * 10 + *(p + addchar_count) - '0';
423 if (*(p + addchar_count) == placeholder) {
424 av_bprintf(&buf, "%0*"PRId64, (number < 0) ? nd : nd++, number);
425 p += (addchar_count + 1);
433 av_bprint_append_data(&buf, p, addchar_count);
436 if (!av_bprint_is_complete(&buf)) {
437 av_bprint_finalize(&buf, NULL);
440 if (av_bprint_finalize(&buf, &new_filename) < 0 || !new_filename)
446 static void write_styp(AVIOContext *pb)
449 ffio_wfourcc(pb, "styp");
450 ffio_wfourcc(pb, "msdh");
451 avio_wb32(pb, 0); /* minor */
452 ffio_wfourcc(pb, "msdh");
453 ffio_wfourcc(pb, "msix");
456 static int flush_dynbuf(VariantStream *vs, int *range_length)
458 AVFormatContext *ctx = vs->avf;
461 return AVERROR(EINVAL);
465 av_write_frame(ctx, NULL);
468 *range_length = avio_close_dyn_buf(ctx->pb, &vs->temp_buffer);
470 avio_write(vs->out, vs->temp_buffer, *range_length);
474 return avio_open_dyn_buf(&ctx->pb);
477 static void reflush_dynbuf(VariantStream *vs, int *range_length)
480 avio_write(vs->out, vs->temp_buffer, *range_length);
484 #define SEPARATOR '\\'
486 #define SEPARATOR '/'
489 static int hls_delete_file(HLSContext *hls, AVFormatContext *avf,
490 const char *path, const char *proto)
492 if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
493 AVDictionary *opt = NULL;
494 AVIOContext *out = NULL;
496 av_dict_set(&opt, "method", "DELETE", 0);
497 ret = avf->io_open(avf, &out, path, AVIO_FLAG_WRITE, &opt);
500 return hls->ignore_io_errors ? 1 : ret;
501 ff_format_io_close(avf, &out);
502 } else if (unlink(path) < 0) {
503 av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
504 path, strerror(errno));
509 static int hls_delete_old_segments(AVFormatContext *s, HLSContext *hls,
513 HLSSegment *segment, *previous_segment = NULL;
514 float playlist_duration = 0.0f;
518 char *dirname = NULL;
519 char *dirname_r = NULL;
520 char *dirname_repl = NULL;
521 char *vtt_dirname = NULL;
522 char *vtt_dirname_r = NULL;
523 const char *proto = NULL;
525 av_bprint_init(&path, 0, AV_BPRINT_SIZE_UNLIMITED);
527 segment = vs->segments;
529 playlist_duration += segment->duration;
530 segment = segment->next;
533 segment = vs->old_segments;
536 playlist_duration -= segment->duration;
537 previous_segment = segment;
538 segment = previous_segment->next;
540 if (playlist_duration <= -previous_segment->duration) {
541 previous_segment->next = NULL;
544 if (segment_cnt >= hls->hls_delete_threshold) {
545 previous_segment->next = NULL;
550 if (segment && !hls->use_localtime_mkdir) {
551 dirname_r = hls->segment_filename ? av_strdup(hls->segment_filename): av_strdup(vs->avf->url);
552 dirname = (char*)av_dirname(dirname_r);
555 /* if %v is present in the file's directory
556 * all segment belongs to the same variant, so do it only once before the loop*/
557 if (dirname && av_stristr(dirname, "%v")) {
559 if (replace_int_data_in_filename(&dirname_repl, dirname, 'v', segment->var_stream_idx) < 1) {
560 ret = AVERROR(EINVAL);
564 if (replace_str_data_in_filename(&dirname_repl, dirname, 'v', vs->varname) < 1) {
565 ret = AVERROR(EINVAL);
570 dirname = dirname_repl;
574 av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n",
576 if (!hls->use_localtime_mkdir) // segment->filename contains basename only
577 av_bprintf(&path, "%s%c", dirname, SEPARATOR);
578 av_bprintf(&path, "%s", segment->filename);
580 if (!av_bprint_is_complete(&path)) {
581 ret = AVERROR(ENOMEM);
585 proto = avio_find_protocol_name(s->url);
586 if (ret = hls_delete_file(hls, vs->avf, path.str, proto))
589 if ((segment->sub_filename[0] != '\0')) {
590 vtt_dirname_r = av_strdup(vs->vtt_avf->url);
591 vtt_dirname = (char*)av_dirname(vtt_dirname_r);
593 av_bprint_clear(&path);
594 av_bprintf(&path, "%s%c%s", vtt_dirname, SEPARATOR,
595 segment->sub_filename);
596 av_freep(&vtt_dirname_r);
598 if (!av_bprint_is_complete(&path)) {
599 ret = AVERROR(ENOMEM);
603 if (ret = hls_delete_file(hls, vs->vtt_avf, path.str, proto))
606 av_bprint_clear(&path);
607 previous_segment = segment;
608 segment = previous_segment->next;
609 av_freep(&previous_segment);
613 av_bprint_finalize(&path, NULL);
614 av_freep(&dirname_r);
615 av_freep(&dirname_repl);
620 static int randomize(uint8_t *buf, int len)
623 gcry_randomize(buf, len, GCRY_VERY_STRONG_RANDOM);
626 if (RAND_bytes(buf, len))
629 return AVERROR(ENOSYS);
631 return AVERROR(EINVAL);
634 static int do_encrypt(AVFormatContext *s, VariantStream *vs)
636 HLSContext *hls = s->priv_data;
640 uint8_t key[KEYSIZE];
641 char * key_basename_source = (hls->master_m3u8_url) ? hls->master_m3u8_url : s->url;
643 len = strlen(key_basename_source) + 4 + 1;
644 hls->key_basename = av_mallocz(len);
645 if (!hls->key_basename)
646 return AVERROR(ENOMEM);
648 av_strlcpy(hls->key_basename, key_basename_source, len);
649 av_strlcat(hls->key_basename, ".key", len);
652 av_strlcpy(hls->key_file, hls->key_url, sizeof(hls->key_file));
653 av_strlcpy(hls->key_uri, hls->key_url, sizeof(hls->key_uri));
655 av_strlcpy(hls->key_file, hls->key_basename, sizeof(hls->key_file));
656 av_strlcpy(hls->key_uri, hls->key_basename, sizeof(hls->key_uri));
659 if (!*hls->iv_string) {
660 uint8_t iv[16] = { 0 };
664 AV_WB64(iv + 8, vs->sequence);
666 memcpy(iv, hls->iv, sizeof(iv));
668 ff_data_to_hex(buf, iv, sizeof(iv), 0);
670 memcpy(hls->iv_string, buf, sizeof(hls->iv_string));
673 if (!*hls->key_uri) {
674 av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
675 return AVERROR(EINVAL);
678 if (!*hls->key_file) {
679 av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
680 return AVERROR(EINVAL);
683 if (!*hls->key_string) {
684 AVDictionary *options = NULL;
686 if ((ret = randomize(key, sizeof(key))) < 0) {
687 av_log(s, AV_LOG_ERROR, "Cannot generate a strong random key\n");
691 memcpy(key, hls->key, sizeof(key));
694 ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
695 set_http_options(s, &options, hls);
696 ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_WRITE, &options);
697 av_dict_free(&options);
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];
714 AVDictionary *options = NULL;
716 set_http_options(s, &options, hls);
717 ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, &options);
718 av_dict_free(&options);
720 av_log(hls, AV_LOG_ERROR,
721 "error opening key info file %s\n", hls->key_info_file);
725 ff_get_line(pb, hls->key_uri, sizeof(hls->key_uri));
726 hls->key_uri[strcspn(hls->key_uri, "\r\n")] = '\0';
728 ff_get_line(pb, hls->key_file, sizeof(hls->key_file));
729 hls->key_file[strcspn(hls->key_file, "\r\n")] = '\0';
731 ff_get_line(pb, hls->iv_string, sizeof(hls->iv_string));
732 hls->iv_string[strcspn(hls->iv_string, "\r\n")] = '\0';
734 ff_format_io_close(s, &pb);
736 if (!*hls->key_uri) {
737 av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
738 return AVERROR(EINVAL);
741 if (!*hls->key_file) {
742 av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
743 return AVERROR(EINVAL);
746 set_http_options(s, &options, hls);
747 ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_READ, &options);
748 av_dict_free(&options);
750 av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", hls->key_file);
754 ret = avio_read(pb, key, sizeof(key));
755 ff_format_io_close(s, &pb);
756 if (ret != sizeof(key)) {
757 av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", hls->key_file);
758 if (ret >= 0 || ret == AVERROR_EOF)
759 ret = AVERROR(EINVAL);
762 ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
767 static int hls_mux_init(AVFormatContext *s, VariantStream *vs)
769 AVDictionary *options = NULL;
770 HLSContext *hls = s->priv_data;
772 AVFormatContext *vtt_oc = NULL;
773 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
774 int remaining_options;
777 ret = avformat_alloc_output_context2(&vs->avf, vs->oformat, NULL, NULL);
782 oc->url = av_strdup("");
784 return AVERROR(ENOMEM);
786 oc->oformat = vs->oformat;
787 oc->interrupt_callback = s->interrupt_callback;
788 oc->max_delay = s->max_delay;
789 oc->opaque = s->opaque;
790 oc->io_open = s->io_open;
791 oc->io_close = s->io_close;
792 oc->strict_std_compliance = s->strict_std_compliance;
793 av_dict_copy(&oc->metadata, s->metadata, 0);
795 if (vs->vtt_oformat) {
796 ret = avformat_alloc_output_context2(&vs->vtt_avf, vs->vtt_oformat, NULL, NULL);
799 vtt_oc = vs->vtt_avf;
800 vtt_oc->oformat = vs->vtt_oformat;
801 av_dict_copy(&vtt_oc->metadata, s->metadata, 0);
804 for (i = 0; i < vs->nb_streams; i++) {
806 AVFormatContext *loc;
807 if (vs->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
812 if (!(st = avformat_new_stream(loc, NULL)))
813 return AVERROR(ENOMEM);
814 avcodec_parameters_copy(st->codecpar, vs->streams[i]->codecpar);
815 if (!oc->oformat->codec_tag ||
816 av_codec_get_id (oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_tag) == st->codecpar->codec_id ||
817 av_codec_get_tag(oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_id) <= 0) {
818 st->codecpar->codec_tag = vs->streams[i]->codecpar->codec_tag;
820 st->codecpar->codec_tag = 0;
823 st->sample_aspect_ratio = vs->streams[i]->sample_aspect_ratio;
824 st->time_base = vs->streams[i]->time_base;
825 av_dict_copy(&st->metadata, vs->streams[i]->metadata, 0);
828 vs->packets_written = 1;
832 if (hls->segment_type == SEGMENT_TYPE_FMP4 && hls->max_seg_size > 0) {
833 if (hls->http_persistent > 0) {
834 //TODO: Support fragment fmp4 for http persistent in HLS muxer.
835 av_log(s, AV_LOG_WARNING, "http persistent mode is currently unsupported for fragment mp4 in the HLS muxer.\n");
837 if (hls->max_seg_size > 0) {
838 av_log(s, AV_LOG_WARNING, "Multi-file byterange mode is currently unsupported in the HLS muxer.\n");
839 return AVERROR_PATCHWELCOME;
843 vs->packets_written = 0;
844 vs->init_range_length = 0;
846 if ((ret = avio_open_dyn_buf(&oc->pb)) < 0)
849 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
850 set_http_options(s, &options, hls);
851 if (byterange_mode) {
852 ret = hlsenc_io_open(s, &vs->out, vs->basename, &options);
854 ret = hlsenc_io_open(s, &vs->out, vs->base_output_dirname, &options);
856 av_dict_free(&options);
859 av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", vs->fmp4_init_filename);
863 av_dict_copy(&options, hls->format_options, 0);
864 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
865 av_dict_set(&options, "fflags", "-autobsf", 0);
866 av_dict_set(&options, "movflags", "+frag_custom+dash+delay_moov", AV_DICT_APPEND);
868 /* We only require one PAT/PMT per segment. */
870 snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1);
871 av_dict_set(&options, "sdt_period", period, AV_DICT_DONT_OVERWRITE);
872 av_dict_set(&options, "pat_period", period, AV_DICT_DONT_OVERWRITE);
874 ret = avformat_init_output(oc, &options);
875 remaining_options = av_dict_count(options);
876 av_dict_free(&options);
879 if (remaining_options) {
880 av_log(s, AV_LOG_ERROR, "Some of the provided format options are not recognized\n");
881 return AVERROR(EINVAL);
887 static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename)
890 if (!av_strcasecmp(segment->filename,filename))
892 segment = segment->next;
894 return (HLSSegment *) NULL;
897 static int sls_flags_filename_process(struct AVFormatContext *s, HLSContext *hls,
898 VariantStream *vs, HLSSegment *en,
899 double duration, int64_t pos, int64_t size)
901 if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
902 strlen(vs->current_segment_final_filename_fmt)) {
903 char * new_url = av_strdup(vs->current_segment_final_filename_fmt);
905 return AVERROR(ENOMEM);
907 ff_format_set_url(vs->avf, new_url);
908 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
909 char *filename = NULL;
910 if (replace_int_data_in_filename(&filename, vs->avf->url, 's', pos + size) < 1) {
911 av_log(hls, AV_LOG_ERROR,
912 "Invalid second level segment filename template '%s', "
913 "you can try to remove second_level_segment_size flag\n",
916 return AVERROR(EINVAL);
918 ff_format_set_url(vs->avf, filename);
920 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
921 char *filename = NULL;
922 if (replace_int_data_in_filename(&filename, vs->avf->url,
923 't', (int64_t)round(duration * HLS_MICROSECOND_UNIT)) < 1) {
924 av_log(hls, AV_LOG_ERROR,
925 "Invalid second level segment filename template '%s', "
926 "you can try to remove second_level_segment_time flag\n",
929 return AVERROR(EINVAL);
931 ff_format_set_url(vs->avf, filename);
937 static int sls_flag_check_duration_size_index(HLSContext *hls)
941 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
942 av_log(hls, AV_LOG_ERROR,
943 "second_level_segment_duration hls_flag requires strftime to be true\n");
944 ret = AVERROR(EINVAL);
946 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
947 av_log(hls, AV_LOG_ERROR,
948 "second_level_segment_size hls_flag requires strfime to be true\n");
949 ret = AVERROR(EINVAL);
951 if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
952 av_log(hls, AV_LOG_ERROR,
953 "second_level_segment_index hls_flag requires strftime to be true\n");
954 ret = AVERROR(EINVAL);
960 static int sls_flag_check_duration_size(HLSContext *hls, VariantStream *vs)
962 const char *proto = avio_find_protocol_name(vs->basename);
963 int segment_renaming_ok = proto && !strcmp(proto, "file");
966 if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) {
967 av_log(hls, AV_LOG_ERROR,
968 "second_level_segment_duration hls_flag works only with file protocol segment names\n");
969 ret = AVERROR(EINVAL);
971 if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) {
972 av_log(hls, AV_LOG_ERROR,
973 "second_level_segment_size hls_flag works only with file protocol segment names\n");
974 ret = AVERROR(EINVAL);
980 static void sls_flag_file_rename(HLSContext *hls, VariantStream *vs, char *old_filename) {
981 if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
982 strlen(vs->current_segment_final_filename_fmt)) {
983 ff_rename(old_filename, vs->avf->url, hls);
987 static int sls_flag_use_localtime_filename(AVFormatContext *oc, HLSContext *c, VariantStream *vs)
989 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
990 char *filename = NULL;
991 if (replace_int_data_in_filename(&filename,
993 oc->url, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
995 oc->url, 'd', vs->sequence) < 1) {
997 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
998 "you can try to remove second_level_segment_index flag\n",
1000 av_freep(&filename);
1001 return AVERROR(EINVAL);
1003 ff_format_set_url(oc, filename);
1005 if (c->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) {
1006 av_strlcpy(vs->current_segment_final_filename_fmt, oc->url,
1007 sizeof(vs->current_segment_final_filename_fmt));
1008 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
1009 char *filename = NULL;
1010 if (replace_int_data_in_filename(&filename, oc->url, 's', 0) < 1) {
1011 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
1012 "you can try to remove second_level_segment_size flag\n",
1014 av_freep(&filename);
1015 return AVERROR(EINVAL);
1017 ff_format_set_url(oc, filename);
1019 if (c->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
1020 char *filename = NULL;
1021 if (replace_int_data_in_filename(&filename, oc->url, 't', 0) < 1) {
1022 av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
1023 "you can try to remove second_level_segment_time flag\n",
1025 av_freep(&filename);
1026 return AVERROR(EINVAL);
1028 ff_format_set_url(oc, filename);
1034 /* Create a new segment and append it to the segment list */
1035 static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls,
1036 VariantStream *vs, double duration, int64_t pos,
1039 HLSSegment *en = av_malloc(sizeof(*en));
1040 const char *filename;
1041 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1045 return AVERROR(ENOMEM);
1047 en->var_stream_idx = vs->var_stream_idx;
1048 ret = sls_flags_filename_process(s, hls, vs, en, duration, pos, size);
1054 filename = av_basename(vs->avf->url);
1056 if (hls->use_localtime_mkdir) {
1057 filename = vs->avf->url;
1059 if ((find_segment_by_filename(vs->segments, filename) || find_segment_by_filename(vs->old_segments, filename))
1060 && !byterange_mode) {
1061 av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename);
1063 av_strlcpy(en->filename, filename, sizeof(en->filename));
1065 if (vs->has_subtitle)
1066 av_strlcpy(en->sub_filename, av_basename(vs->vtt_avf->url), sizeof(en->sub_filename));
1068 en->sub_filename[0] = '\0';
1070 en->duration = duration;
1073 en->keyframe_pos = vs->video_keyframe_pos;
1074 en->keyframe_size = vs->video_keyframe_size;
1078 if (vs->discontinuity) {
1080 vs->discontinuity = 0;
1083 if (hls->key_info_file || hls->encrypt) {
1084 av_strlcpy(en->key_uri, hls->key_uri, sizeof(en->key_uri));
1085 av_strlcpy(en->iv_string, hls->iv_string, sizeof(en->iv_string));
1091 vs->last_segment->next = en;
1093 vs->last_segment = en;
1095 // EVENT or VOD playlists imply sliding window cannot be used
1096 if (hls->pl_type != PLAYLIST_TYPE_NONE)
1097 hls->max_nb_segments = 0;
1099 if (hls->max_nb_segments && vs->nb_entries >= hls->max_nb_segments) {
1101 vs->initial_prog_date_time += en->duration;
1102 vs->segments = en->next;
1103 if (en && hls->flags & HLS_DELETE_SEGMENTS &&
1105 !(hls->flags & HLS_SINGLE_FILE || hls->wrap)) {
1107 !(hls->flags & HLS_SINGLE_FILE)) {
1109 en->next = vs->old_segments;
1110 vs->old_segments = en;
1111 if ((ret = hls_delete_old_segments(s, hls, vs)) < 0)
1118 if (hls->max_seg_size > 0) {
1126 static int parse_playlist(AVFormatContext *s, const char *url, VariantStream *vs)
1128 HLSContext *hls = s->priv_data;
1130 int ret = 0, is_segment = 0;
1131 int64_t new_start_pos;
1132 char line[MAX_URL_SIZE];
1136 if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ,
1137 &s->interrupt_callback, NULL,
1138 s->protocol_whitelist, s->protocol_blacklist)) < 0)
1141 ff_get_chomp_line(in, line, sizeof(line));
1142 if (strcmp(line, "#EXTM3U")) {
1143 ret = AVERROR_INVALIDDATA;
1147 vs->discontinuity = 0;
1148 while (!avio_feof(in)) {
1149 ff_get_chomp_line(in, line, sizeof(line));
1150 if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
1151 int64_t tmp_sequence = strtoll(ptr, NULL, 10);
1152 if (tmp_sequence < vs->sequence)
1153 av_log(hls, AV_LOG_VERBOSE,
1154 "Found playlist sequence number was smaller """
1155 "than specified start sequence number: %"PRId64" < %"PRId64", "
1156 "omitting\n", tmp_sequence, hls->start_sequence);
1158 av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence);
1159 vs->sequence = tmp_sequence;
1161 } else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) {
1163 vs->discontinuity = 1;
1164 } else if (av_strstart(line, "#EXTINF:", &ptr)) {
1166 vs->duration = atof(ptr);
1167 } else if (av_stristart(line, "#EXT-X-KEY:", &ptr)) {
1168 ptr = av_stristr(line, "URI=\"");
1170 ptr += strlen("URI=\"");
1171 end = av_stristr(ptr, ",");
1173 av_strlcpy(hls->key_uri, ptr, end - ptr);
1175 av_strlcpy(hls->key_uri, ptr, sizeof(hls->key_uri));
1179 ptr = av_stristr(line, "IV=0x");
1181 ptr += strlen("IV=0x");
1182 end = av_stristr(ptr, ",");
1184 av_strlcpy(hls->iv_string, ptr, end - ptr);
1186 av_strlcpy(hls->iv_string, ptr, sizeof(hls->iv_string));
1190 } else if (av_strstart(line, "#", NULL)) {
1192 } else if (line[0]) {
1194 char *new_file = av_strdup(line);
1196 ret = AVERROR(ENOMEM);
1199 ff_format_set_url(vs->avf, new_file);
1201 new_start_pos = avio_tell(vs->avf->pb);
1202 vs->size = new_start_pos - vs->start_pos;
1203 vs->initial_prog_date_time -= vs->duration; // this is a previously existing segment
1204 ret = hls_append_segment(s, hls, vs, vs->duration, vs->start_pos, vs->size);
1207 vs->start_pos = new_start_pos;
1217 static void hls_free_segments(HLSSegment *p)
1228 static int hls_rename_temp_file(AVFormatContext *s, AVFormatContext *oc)
1230 size_t len = strlen(oc->url);
1231 char *final_filename = av_strdup(oc->url);
1234 if (!final_filename)
1235 return AVERROR(ENOMEM);
1236 final_filename[len-4] = '\0';
1237 ret = ff_rename(oc->url, final_filename, s);
1238 oc->url[len-4] = '\0';
1239 av_freep(&final_filename);
1243 static const char* get_relative_url(const char *master_url, const char *media_url)
1245 const char *p = strrchr(master_url, '/');
1246 size_t base_len = 0;
1248 if (!p) p = strrchr(master_url, '\\');
1251 base_len = p - master_url;
1252 if (av_strncasecmp(master_url, media_url, base_len)) {
1253 av_log(NULL, AV_LOG_WARNING, "Unable to find relative url\n");
1260 return media_url + base_len + 1;
1263 static int64_t get_stream_bit_rate(AVStream *stream)
1265 AVCPBProperties *props = (AVCPBProperties*)av_stream_get_side_data(
1267 AV_PKT_DATA_CPB_PROPERTIES,
1271 if (stream->codecpar->bit_rate)
1272 return stream->codecpar->bit_rate;
1274 return props->max_bitrate;
1279 static int create_master_playlist(AVFormatContext *s,
1280 VariantStream * const input_vs)
1282 HLSContext *hls = s->priv_data;
1283 VariantStream *vs, *temp_vs;
1284 AVStream *vid_st, *aud_st;
1285 AVDictionary *options = NULL;
1288 const char *m3u8_rel_name = NULL;
1289 const char *vtt_m3u8_rel_name = NULL;
1291 char *sgroup = NULL;
1292 ClosedCaptionsStream *ccs;
1293 const char *proto = avio_find_protocol_name(hls->master_m3u8_url);
1294 int is_file_proto = proto && !strcmp(proto, "file");
1295 int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || hls->master_publish_rate);
1296 char temp_filename[MAX_URL_SIZE];
1298 input_vs->m3u8_created = 1;
1299 if (!hls->master_m3u8_created) {
1300 /* For the first time, wait until all the media playlists are created */
1301 for (i = 0; i < hls->nb_varstreams; i++)
1302 if (!hls->var_streams[i].m3u8_created)
1305 /* Keep publishing the master playlist at the configured rate */
1306 if (&hls->var_streams[0] != input_vs || !hls->master_publish_rate ||
1307 input_vs->number % hls->master_publish_rate)
1311 set_http_options(s, &options, hls);
1312 snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", hls->master_m3u8_url);
1313 ret = hlsenc_io_open(s, &hls->m3u8_out, temp_filename, &options);
1314 av_dict_free(&options);
1316 av_log(s, AV_LOG_ERROR, "Failed to open master play list file '%s'\n",
1321 ff_hls_write_playlist_version(hls->m3u8_out, hls->version);
1323 for (i = 0; i < hls->nb_ccstreams; i++) {
1324 ccs = &(hls->cc_streams[i]);
1325 avio_printf(hls->m3u8_out, "#EXT-X-MEDIA:TYPE=CLOSED-CAPTIONS");
1326 avio_printf(hls->m3u8_out, ",GROUP-ID=\"%s\"", ccs->ccgroup);
1327 avio_printf(hls->m3u8_out, ",NAME=\"%s\"", ccs->instreamid);
1329 avio_printf(hls->m3u8_out, ",LANGUAGE=\"%s\"", ccs->language);
1330 avio_printf(hls->m3u8_out, ",INSTREAM-ID=\"%s\"\n", ccs->instreamid);
1333 /* For audio only variant streams add #EXT-X-MEDIA tag with attributes*/
1334 for (i = 0; i < hls->nb_varstreams; i++) {
1335 vs = &(hls->var_streams[i]);
1337 if (vs->has_video || vs->has_subtitle || !vs->agroup)
1340 m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
1341 if (!m3u8_rel_name) {
1342 av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
1346 ff_hls_write_audio_rendition(hls->m3u8_out, vs->agroup, m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
1349 /* For variant streams with video add #EXT-X-STREAM-INF tag with attributes*/
1350 for (i = 0; i < hls->nb_varstreams; i++) {
1351 vs = &(hls->var_streams[i]);
1353 m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
1354 if (!m3u8_rel_name) {
1355 av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
1361 for (j = 0; j < vs->nb_streams; j++) {
1362 if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
1363 vid_st = vs->streams[j];
1364 else if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
1365 aud_st = vs->streams[j];
1368 if (!vid_st && !aud_st) {
1369 av_log(s, AV_LOG_WARNING, "Media stream not found\n");
1374 * Traverse through the list of audio only rendition streams and find
1375 * the rendition which has highest bitrate in the same audio group
1378 for (j = 0; j < hls->nb_varstreams; j++) {
1379 temp_vs = &(hls->var_streams[j]);
1380 if (!temp_vs->has_video && !temp_vs->has_subtitle &&
1382 !av_strcasecmp(temp_vs->agroup, vs->agroup)) {
1384 aud_st = temp_vs->streams[0];
1385 if (temp_vs->streams[0]->codecpar->bit_rate >
1386 aud_st->codecpar->bit_rate)
1387 aud_st = temp_vs->streams[0];
1394 bandwidth += get_stream_bit_rate(vid_st);
1396 bandwidth += get_stream_bit_rate(aud_st);
1397 bandwidth += bandwidth / 10;
1400 if (vid_st && vs->ccgroup) {
1401 /* check if this group name is available in the cc map string */
1402 for (j = 0; j < hls->nb_ccstreams; j++) {
1403 ccs = &(hls->cc_streams[j]);
1404 if (!av_strcasecmp(ccs->ccgroup, vs->ccgroup)) {
1405 ccgroup = vs->ccgroup;
1409 if (j == hls->nb_ccstreams)
1410 av_log(s, AV_LOG_WARNING, "mapping ccgroup %s not found\n",
1414 if (vid_st && vs->sgroup) {
1415 sgroup = vs->sgroup;
1416 vtt_m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->vtt_m3u8_name);
1417 if (!vtt_m3u8_rel_name) {
1418 av_log(s, AV_LOG_WARNING, "Unable to find relative subtitle URL\n");
1422 ff_hls_write_subtitle_rendition(hls->m3u8_out, sgroup, vtt_m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
1425 if (!hls->has_default_key || !hls->has_video_m3u8) {
1426 ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
1427 aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup);
1430 ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
1431 aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup);
1437 hls->master_m3u8_created = 1;
1438 hlsenc_io_close(s, &hls->m3u8_out, temp_filename);
1440 ff_rename(temp_filename, hls->master_m3u8_url, s);
1445 static int hls_window(AVFormatContext *s, int last, VariantStream *vs)
1447 HLSContext *hls = s->priv_data;
1449 int target_duration = 0;
1451 char temp_filename[MAX_URL_SIZE];
1452 char temp_vtt_filename[MAX_URL_SIZE];
1453 int64_t sequence = FFMAX(hls->start_sequence, vs->sequence - vs->nb_entries);
1454 const char *proto = avio_find_protocol_name(vs->m3u8_name);
1455 int is_file_proto = proto && !strcmp(proto, "file");
1456 int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || !(hls->pl_type == PLAYLIST_TYPE_VOD));
1457 static unsigned warned_non_file;
1458 char *key_uri = NULL;
1459 char *iv_string = NULL;
1460 AVDictionary *options = NULL;
1461 double prog_date_time = vs->initial_prog_date_time;
1462 double *prog_date_time_p = (hls->flags & HLS_PROGRAM_DATE_TIME) ? &prog_date_time : NULL;
1463 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
1466 if (byterange_mode) {
1471 if (hls->flags & HLS_INDEPENDENT_SEGMENTS) {
1475 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1479 if (!is_file_proto && (hls->flags & HLS_TEMP_FILE) && !warned_non_file++)
1480 av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
1482 set_http_options(s, &options, hls);
1483 snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", vs->m3u8_name);
1484 if ((ret = hlsenc_io_open(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename, &options)) < 0) {
1485 if (hls->ignore_io_errors)
1490 for (en = vs->segments; en; en = en->next) {
1491 if (target_duration <= en->duration)
1492 target_duration = lrint(en->duration);
1495 vs->discontinuity_set = 0;
1496 ff_hls_write_playlist_header(byterange_mode ? hls->m3u8_out : vs->out, hls->version, hls->allowcache,
1497 target_duration, sequence, hls->pl_type, hls->flags & HLS_I_FRAMES_ONLY);
1499 if ((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && vs->discontinuity_set==0 ) {
1500 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-DISCONTINUITY\n");
1501 vs->discontinuity_set = 1;
1503 if (vs->has_video && (hls->flags & HLS_INDEPENDENT_SEGMENTS)) {
1504 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-INDEPENDENT-SEGMENTS\n");
1506 for (en = vs->segments; en; en = en->next) {
1507 if ((hls->encrypt || hls->key_info_file) && (!key_uri || strcmp(en->key_uri, key_uri) ||
1508 av_strcasecmp(en->iv_string, iv_string))) {
1509 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri);
1511 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, ",IV=0x%s", en->iv_string);
1512 avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "\n");
1513 key_uri = en->key_uri;
1514 iv_string = en->iv_string;
1517 if ((hls->segment_type == SEGMENT_TYPE_FMP4) && (en == vs->segments)) {
1518 ff_hls_write_init_file(byterange_mode ? hls->m3u8_out : vs->out, (hls->flags & HLS_SINGLE_FILE) ? en->filename : vs->fmp4_init_filename,
1519 hls->flags & HLS_SINGLE_FILE, vs->init_range_length, 0);
1522 ret = ff_hls_write_file_entry(byterange_mode ? hls->m3u8_out : vs->out, en->discont, byterange_mode,
1523 en->duration, hls->flags & HLS_ROUND_DURATIONS,
1524 en->size, en->pos, vs->baseurl,
1525 en->filename, prog_date_time_p, en->keyframe_size, en->keyframe_pos, hls->flags & HLS_I_FRAMES_ONLY);
1527 av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
1531 if (last && (hls->flags & HLS_OMIT_ENDLIST)==0)
1532 ff_hls_write_end_list(byterange_mode ? hls->m3u8_out : vs->out);
1534 if (vs->vtt_m3u8_name) {
1535 snprintf(temp_vtt_filename, sizeof(temp_vtt_filename), use_temp_file ? "%s.tmp" : "%s", vs->vtt_m3u8_name);
1536 if ((ret = hlsenc_io_open(s, &hls->sub_m3u8_out, temp_vtt_filename, &options)) < 0) {
1537 if (hls->ignore_io_errors)
1541 ff_hls_write_playlist_header(hls->sub_m3u8_out, hls->version, hls->allowcache,
1542 target_duration, sequence, PLAYLIST_TYPE_NONE, 0);
1543 for (en = vs->segments; en; en = en->next) {
1544 ret = ff_hls_write_file_entry(hls->sub_m3u8_out, 0, byterange_mode,
1545 en->duration, 0, en->size, en->pos,
1546 vs->baseurl, en->sub_filename, NULL, 0, 0, 0);
1548 av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
1553 ff_hls_write_end_list(hls->sub_m3u8_out);
1558 av_dict_free(&options);
1559 ret = hlsenc_io_close(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename);
1563 hlsenc_io_close(s, &hls->sub_m3u8_out, vs->vtt_m3u8_name);
1564 if (use_temp_file) {
1565 ff_rename(temp_filename, vs->m3u8_name, s);
1566 if (vs->vtt_m3u8_name)
1567 ff_rename(temp_vtt_filename, vs->vtt_m3u8_name, s);
1569 if (ret >= 0 && hls->master_pl_name)
1570 if (create_master_playlist(s, vs) < 0)
1571 av_log(s, AV_LOG_WARNING, "Master playlist creation failed\n");
1576 static int hls_start(AVFormatContext *s, VariantStream *vs)
1578 HLSContext *c = s->priv_data;
1579 AVFormatContext *oc = vs->avf;
1580 AVFormatContext *vtt_oc = vs->vtt_avf;
1581 AVDictionary *options = NULL;
1582 const char *proto = NULL;
1583 int use_temp_file = 0;
1584 char iv_string[KEYSIZE*2 + 1];
1587 if (c->flags & HLS_SINGLE_FILE) {
1588 char *new_name = av_strdup(vs->basename);
1590 return AVERROR(ENOMEM);
1591 ff_format_set_url(oc, new_name);
1592 if (vs->vtt_basename) {
1593 new_name = av_strdup(vs->vtt_basename);
1595 return AVERROR(ENOMEM);
1596 ff_format_set_url(vtt_oc, new_name);
1598 } else if (c->max_seg_size > 0) {
1599 char *filename = NULL;
1600 if (replace_int_data_in_filename(&filename,
1602 vs->basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1604 vs->basename, 'd', vs->sequence) < 1) {
1606 av_freep(&filename);
1607 av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -strftime 1 with it\n", vs->basename);
1608 return AVERROR(EINVAL);
1610 ff_format_set_url(oc, filename);
1612 if (c->use_localtime) {
1614 struct tm *tm, tmpbuf;
1615 int bufsize = strlen(vs->basename) + MAX_URL_SIZE;
1616 char *buf = av_mallocz(bufsize);
1618 return AVERROR(ENOMEM);
1620 tm = localtime_r(&now0, &tmpbuf);
1621 ff_format_set_url(oc, buf);
1622 if (!strftime(oc->url, bufsize, vs->basename, tm)) {
1623 av_log(oc, AV_LOG_ERROR, "Could not get segment filename with strftime\n");
1624 return AVERROR(EINVAL);
1627 err = sls_flag_use_localtime_filename(oc, c, vs);
1629 return AVERROR(ENOMEM);
1632 if (c->use_localtime_mkdir) {
1634 char *fn_copy = av_strdup(oc->url);
1635 dir = av_dirname(fn_copy);
1636 if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
1637 av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir);
1639 return AVERROR(errno);
1644 char *filename = NULL;
1645 if (replace_int_data_in_filename(&filename,
1647 vs->basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1649 vs->basename, 'd', vs->sequence) < 1) {
1651 av_freep(&filename);
1652 av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -strftime 1 with it\n", vs->basename);
1653 return AVERROR(EINVAL);
1655 ff_format_set_url(oc, filename);
1657 if ( vs->vtt_basename) {
1658 char *filename = NULL;
1659 if (replace_int_data_in_filename(&filename,
1661 vs->vtt_basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
1663 vs->vtt_basename, 'd', vs->sequence) < 1) {
1665 av_freep(&filename);
1666 av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", vs->vtt_basename);
1667 return AVERROR(EINVAL);
1669 ff_format_set_url(vtt_oc, filename);
1674 proto = avio_find_protocol_name(oc->url);
1675 use_temp_file = proto && !strcmp(proto, "file") && (c->flags & HLS_TEMP_FILE);
1677 if (use_temp_file) {
1678 char *new_name = av_asprintf("%s.tmp", oc->url);
1680 return AVERROR(ENOMEM);
1681 ff_format_set_url(oc, new_name);
1684 if (c->key_info_file || c->encrypt) {
1685 if (c->segment_type == SEGMENT_TYPE_FMP4) {
1686 av_log(s, AV_LOG_ERROR, "Encrypted fmp4 not yet supported\n");
1687 return AVERROR_PATCHWELCOME;
1690 if (c->key_info_file && c->encrypt) {
1691 av_log(s, AV_LOG_WARNING, "Cannot use both -hls_key_info_file and -hls_enc,"
1692 " ignoring -hls_enc\n");
1695 if (!c->encrypt_started || (c->flags & HLS_PERIODIC_REKEY)) {
1696 if (c->key_info_file) {
1697 if ((err = hls_encryption_start(s)) < 0)
1700 if ((err = do_encrypt(s, vs)) < 0)
1703 c->encrypt_started = 1;
1705 err = av_strlcpy(iv_string, c->iv_string, sizeof(iv_string));
1707 snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, vs->sequence);
1708 memset(c->iv_string, 0, sizeof(c->iv_string));
1709 memcpy(c->iv_string, iv_string, sizeof(iv_string));
1712 if (c->segment_type != SEGMENT_TYPE_FMP4) {
1713 if (oc->oformat->priv_class && oc->priv_data) {
1714 av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
1716 if (c->flags & HLS_SINGLE_FILE) {
1717 set_http_options(s, &options, c);
1718 if ((err = hlsenc_io_open(s, &vs->out, oc->url, &options)) < 0) {
1719 if (c->ignore_io_errors)
1725 if (vs->vtt_basename) {
1726 set_http_options(s, &options, c);
1727 if ((err = hlsenc_io_open(s, &vtt_oc->pb, vtt_oc->url, &options)) < 0) {
1728 if (c->ignore_io_errors)
1733 av_dict_free(&options);
1735 if (vs->vtt_basename) {
1736 err = avformat_write_header(vtt_oc,NULL);
1743 av_dict_free(&options);
1748 static const char * get_default_pattern_localtime_fmt(AVFormatContext *s)
1751 time_t t = time(NULL);
1752 struct tm *p, tmbuf;
1753 HLSContext *hls = s->priv_data;
1755 p = localtime_r(&t, &tmbuf);
1756 // no %s support when strftime returned error or left format string unchanged
1757 // also no %s support on MSVC, which invokes the invalid parameter handler on unsupported format strings, instead of returning an error
1758 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
1759 return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.m4s" : "-%s.m4s";
1761 return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts";
1764 static int append_postfix(char *name, int name_buf_len, int i)
1767 char extension[10] = {'\0'};
1769 p = strrchr(name, '.');
1771 av_strlcpy(extension, p, sizeof(extension));
1775 snprintf(name + strlen(name), name_buf_len - strlen(name), POSTFIX_PATTERN, i);
1777 if (strlen(extension))
1778 av_strlcat(name, extension, name_buf_len);
1783 static int validate_name(int nb_vs, const char *fn)
1785 const char *filename, *subdir_name;
1786 char *fn_dup = NULL;
1790 ret = AVERROR(EINVAL);
1794 fn_dup = av_strdup(fn);
1795 filename = av_basename(fn);
1796 subdir_name = av_dirname(fn_dup);
1798 if (nb_vs > 1 && !av_stristr(filename, "%v") && !av_stristr(subdir_name, "%v")) {
1799 av_log(NULL, AV_LOG_ERROR, "More than 1 variant streams are present, %%v is expected "
1800 "either in the filename or in the sub-directory name of file %s\n", fn);
1801 ret = AVERROR(EINVAL);
1805 if (av_stristr(filename, "%v") && av_stristr(subdir_name, "%v")) {
1806 av_log(NULL, AV_LOG_ERROR, "%%v is expected either in the filename or "
1807 "in the sub-directory name of file %s, but only in one of them\n", fn);
1808 ret = AVERROR(EINVAL);
1817 static int format_name(const char *buf, char **s, int index, const char *varname)
1819 const char *proto, *dir;
1820 char *orig_buf_dup = NULL, *mod_buf_dup = NULL;
1823 orig_buf_dup = av_strdup(buf);
1824 if (!orig_buf_dup) {
1825 ret = AVERROR(ENOMEM);
1829 if (!av_stristr(buf, "%v")) {
1835 if (replace_int_data_in_filename(s, orig_buf_dup, 'v', index) < 1) {
1836 ret = AVERROR(EINVAL);
1840 if (replace_str_data_in_filename(s, orig_buf_dup, 'v', varname) < 1) {
1841 ret = AVERROR(EINVAL);
1846 proto = avio_find_protocol_name(orig_buf_dup);
1847 dir = av_dirname(orig_buf_dup);
1849 /* if %v is present in the file's directory, create sub-directory */
1850 if (av_stristr(dir, "%v") && proto && !strcmp(proto, "file")) {
1851 mod_buf_dup = av_strdup(*s);
1852 dir = av_dirname(mod_buf_dup);
1853 if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
1854 ret = AVERROR(errno);
1860 av_freep(&orig_buf_dup);
1861 av_freep(&mod_buf_dup);
1865 static int get_nth_codec_stream_index(AVFormatContext *s,
1866 enum AVMediaType codec_type,
1869 unsigned int stream_index, cnt;
1870 if (stream_id < 0 || stream_id > s->nb_streams - 1)
1873 for (stream_index = 0; stream_index < s->nb_streams; stream_index++) {
1874 if (s->streams[stream_index]->codecpar->codec_type != codec_type)
1876 if (cnt == stream_id)
1877 return stream_index;
1883 static int parse_variant_stream_mapstring(AVFormatContext *s)
1885 HLSContext *hls = s->priv_data;
1887 int stream_index, i, j;
1888 enum AVMediaType codec_type;
1889 int nb_varstreams = 0, nb_streams;
1890 char *p, *q, *saveptr1, *saveptr2, *varstr, *keyval;
1894 * Expected format for var_stream_map string is as below:
1896 * "a:0,agroup:a0,default:1,language:ENG a:1,agroup:a1,default:0 v:0,agroup:a0 v:1,agroup:a1"
1897 * This string specifies how to group the audio, video and subtitle streams
1898 * into different variant streams. The variant stream groups are separated
1901 * a:, v:, s: are keys to specify audio, video and subtitle streams
1902 * respectively. Allowed values are 0 to 9 digits (limited just based on
1905 * agroup: is key to specify audio group. A string can be given as value.
1906 * sgroup: is key to specify subtitle group. A string can be given as value.
1908 p = av_strdup(hls->var_stream_map);
1910 return AVERROR(ENOMEM);
1913 while (av_strtok(q, " \t", &saveptr1)) {
1919 hls->var_streams = av_mallocz(sizeof(*hls->var_streams) * nb_varstreams);
1920 if (!hls->var_streams)
1921 return AVERROR(ENOMEM);
1922 hls->nb_varstreams = nb_varstreams;
1924 p = hls->var_stream_map;
1926 while (varstr = av_strtok(p, " \t", &saveptr1)) {
1929 if (nb_varstreams < hls->nb_varstreams) {
1930 vs = &(hls->var_streams[nb_varstreams]);
1931 vs->var_stream_idx = nb_varstreams;
1935 return AVERROR(EINVAL);
1938 while (q < varstr + strlen(varstr)) {
1939 if (!av_strncasecmp(q, "a:", 2) || !av_strncasecmp(q, "v:", 2) ||
1940 !av_strncasecmp(q, "s:", 2))
1944 vs->streams = av_mallocz(sizeof(AVStream *) * vs->nb_streams);
1946 return AVERROR(ENOMEM);
1949 while (keyval = av_strtok(varstr, ",", &saveptr2)) {
1951 if (av_strstart(keyval, "language:", &val)) {
1952 av_free(vs->language);
1953 vs->language = av_strdup(val);
1955 return AVERROR(ENOMEM);
1957 } else if (av_strstart(keyval, "default:", &val)) {
1958 vs->is_default = (!av_strncasecmp(val, "YES", strlen("YES")) ||
1959 (!av_strncasecmp(val, "1", strlen("1"))));
1960 hls->has_default_key = 1;
1962 } else if (av_strstart(keyval, "name:", &val)) {
1963 av_free(vs->varname);
1964 vs->varname = av_strdup(val);
1966 return AVERROR(ENOMEM);
1968 } else if (av_strstart(keyval, "agroup:", &val)) {
1969 av_free(vs->agroup);
1970 vs->agroup = av_strdup(val);
1972 return AVERROR(ENOMEM);
1974 } else if (av_strstart(keyval, "sgroup:", &val)) {
1975 av_free(vs->sgroup);
1976 vs->sgroup = av_strdup(val);
1978 return AVERROR(ENOMEM);
1980 } else if (av_strstart(keyval, "ccgroup:", &val)) {
1981 av_free(vs->ccgroup);
1982 vs->ccgroup = av_strdup(val);
1984 return AVERROR(ENOMEM);
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);
1999 if (av_isdigit(*val))
2000 stream_index = get_nth_codec_stream_index (s, codec_type,
2003 if (stream_index >= 0 && nb_streams < vs->nb_streams) {
2004 for (i = 0; nb_streams > 0 && i < nb_streams; i++) {
2005 if (vs->streams[i] == s->streams[stream_index]) {
2006 av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once inside "
2007 "variant definition #%d\n", nb_varstreams - 1);
2008 return AVERROR(EINVAL);
2011 for (j = 0; nb_varstreams > 1 && j < nb_varstreams - 1; j++) {
2012 for (i = 0; i < hls->var_streams[j].nb_streams; i++) {
2013 if (hls->var_streams[j].streams[i] == s->streams[stream_index]) {
2014 av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once "
2015 "in two different variant definitions #%d and #%d\n",
2016 j, nb_varstreams - 1);
2017 return AVERROR(EINVAL);
2021 vs->streams[nb_streams++] = s->streams[stream_index];
2023 av_log(s, AV_LOG_ERROR, "Unable to map stream at %s\n", keyval);
2024 return AVERROR(EINVAL);
2028 av_log(s, AV_LOG_DEBUG, "Number of variant streams %d\n",
2029 hls->nb_varstreams);
2034 static int parse_cc_stream_mapstring(AVFormatContext *s)
2036 HLSContext *hls = s->priv_data;
2037 int nb_ccstreams = 0;
2038 char *p, *q, *ccstr, *keyval;
2039 char *saveptr1 = NULL, *saveptr2 = NULL;
2041 ClosedCaptionsStream *ccs;
2043 p = av_strdup(hls->cc_stream_map);
2045 return AVERROR(ENOMEM);
2048 while (av_strtok(q, " \t", &saveptr1)) {
2054 hls->cc_streams = av_mallocz(sizeof(*hls->cc_streams) * nb_ccstreams);
2055 if (!hls->cc_streams)
2056 return AVERROR(ENOMEM);
2057 hls->nb_ccstreams = nb_ccstreams;
2059 p = hls->cc_stream_map;
2061 while (ccstr = av_strtok(p, " \t", &saveptr1)) {
2064 if (nb_ccstreams < hls->nb_ccstreams)
2065 ccs = &(hls->cc_streams[nb_ccstreams++]);
2067 return AVERROR(EINVAL);
2069 while (keyval = av_strtok(ccstr, ",", &saveptr2)) {
2072 if (av_strstart(keyval, "ccgroup:", &val)) {
2073 av_free(ccs->ccgroup);
2074 ccs->ccgroup = av_strdup(val);
2076 return AVERROR(ENOMEM);
2077 } else if (av_strstart(keyval, "instreamid:", &val)) {
2078 av_free(ccs->instreamid);
2079 ccs->instreamid = av_strdup(val);
2080 if (!ccs->instreamid)
2081 return AVERROR(ENOMEM);
2082 } else if (av_strstart(keyval, "language:", &val)) {
2083 av_free(ccs->language);
2084 ccs->language = av_strdup(val);
2086 return AVERROR(ENOMEM);
2088 av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
2089 return AVERROR(EINVAL);
2093 if (!ccs->ccgroup || !ccs->instreamid) {
2094 av_log(s, AV_LOG_ERROR, "Insufficient parameters in cc stream map string\n");
2095 return AVERROR(EINVAL);
2098 if (av_strstart(ccs->instreamid, "CC", &val)) {
2099 if (atoi(val) < 1 || atoi(val) > 4) {
2100 av_log(s, AV_LOG_ERROR, "Invalid instream ID CC index %d in %s, range 1-4\n",
2101 atoi(val), ccs->instreamid);
2102 return AVERROR(EINVAL);
2104 } else if (av_strstart(ccs->instreamid, "SERVICE", &val)) {
2105 if (atoi(val) < 1 || atoi(val) > 63) {
2106 av_log(s, AV_LOG_ERROR, "Invalid instream ID SERVICE index %d in %s, range 1-63 \n",
2107 atoi(val), ccs->instreamid);
2108 return AVERROR(EINVAL);
2111 av_log(s, AV_LOG_ERROR, "Invalid instream ID %s, supported are CCn or SERVICEn\n",
2113 return AVERROR(EINVAL);
2120 static int update_variant_stream_info(AVFormatContext *s)
2122 HLSContext *hls = s->priv_data;
2126 if (hls->cc_stream_map) {
2127 ret = parse_cc_stream_mapstring(s);
2132 if (hls->var_stream_map) {
2133 return parse_variant_stream_mapstring(s);
2135 //By default, a single variant stream with all the codec streams is created
2136 hls->var_streams = av_mallocz(sizeof(*hls->var_streams));
2137 if (!hls->var_streams)
2138 return AVERROR(ENOMEM);
2139 hls->nb_varstreams = 1;
2141 hls->var_streams[0].var_stream_idx = 0;
2142 hls->var_streams[0].nb_streams = s->nb_streams;
2143 hls->var_streams[0].streams = av_mallocz(sizeof(AVStream *) *
2144 hls->var_streams[0].nb_streams);
2145 if (!hls->var_streams[0].streams) {
2146 return AVERROR(ENOMEM);
2149 //by default, the first available ccgroup is mapped to the variant stream
2150 if (hls->nb_ccstreams) {
2151 hls->var_streams[0].ccgroup = av_strdup(hls->cc_streams[0].ccgroup);
2152 if (!hls->var_streams[0].ccgroup) {
2153 return AVERROR(ENOMEM);
2157 for (i = 0; i < s->nb_streams; i++)
2158 hls->var_streams[0].streams[i] = s->streams[i];
2163 static int update_master_pl_info(AVFormatContext *s)
2165 HLSContext *hls = s->priv_data;
2167 char *fn1= NULL, *fn2 = NULL;
2170 fn1 = av_strdup(s->url);
2171 dir = av_dirname(fn1);
2174 * if output file's directory has %v, variants are created in sub-directories
2175 * then master is created at the sub-directories level
2177 if (dir && av_stristr(av_basename(dir), "%v")) {
2178 fn2 = av_strdup(dir);
2179 dir = av_dirname(fn2);
2182 if (dir && strcmp(dir, "."))
2183 hls->master_m3u8_url = av_append_path_component(dir, hls->master_pl_name);
2185 hls->master_m3u8_url = av_strdup(hls->master_pl_name);
2187 if (!hls->master_m3u8_url) {
2188 ret = AVERROR(ENOMEM);
2199 static int hls_write_header(AVFormatContext *s)
2201 HLSContext *hls = s->priv_data;
2203 VariantStream *vs = NULL;
2205 for (i = 0; i < hls->nb_varstreams; i++) {
2206 vs = &hls->var_streams[i];
2208 ret = avformat_write_header(vs->avf, NULL);
2211 //av_assert0(s->nb_streams == hls->avf->nb_streams);
2212 for (j = 0; j < vs->nb_streams; j++) {
2214 AVStream *outer_st = vs->streams[j];
2216 if (hls->max_seg_size > 0) {
2217 if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
2218 (outer_st->codecpar->bit_rate > hls->max_seg_size)) {
2219 av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, "
2220 "(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.",
2221 outer_st->codecpar->bit_rate, hls->max_seg_size);
2225 if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
2226 inner_st = vs->avf->streams[j];
2227 else if (vs->vtt_avf)
2228 inner_st = vs->vtt_avf->streams[0];
2230 /* We have a subtitle stream, when the user does not want one */
2234 avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
2235 write_codec_attr(outer_st, vs);
2238 /* Update the Codec Attr string for the mapped audio groups */
2239 if (vs->has_video && vs->agroup) {
2240 for (j = 0; j < hls->nb_varstreams; j++) {
2241 VariantStream *vs_agroup = &(hls->var_streams[j]);
2242 if (!vs_agroup->has_video && !vs_agroup->has_subtitle &&
2243 vs_agroup->agroup &&
2244 !av_strcasecmp(vs_agroup->agroup, vs->agroup)) {
2245 write_codec_attr(vs_agroup->streams[0], vs);
2254 static int hls_init_file_resend(AVFormatContext *s, VariantStream *vs)
2256 HLSContext *hls = s->priv_data;
2257 AVDictionary *options = NULL;
2260 set_http_options(s, &options, hls);
2261 ret = hlsenc_io_open(s, &vs->out, hls->fmp4_init_filename, &options);
2262 av_dict_free(&options);
2265 avio_write(vs->out, vs->init_buffer, vs->init_range_length);
2266 hlsenc_io_close(s, &vs->out, hls->fmp4_init_filename);
2271 static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
2273 HLSContext *hls = s->priv_data;
2274 AVFormatContext *oc = NULL;
2275 AVStream *st = s->streams[pkt->stream_index];
2276 int64_t end_pts = 0;
2278 int ret = 0, can_split = 1, i, j;
2279 int stream_index = 0;
2280 int range_length = 0;
2281 const char *proto = NULL;
2282 int use_temp_file = 0;
2283 VariantStream *vs = NULL;
2284 char *old_filename = NULL;
2286 for (i = 0; i < hls->nb_varstreams; i++) {
2287 vs = &hls->var_streams[i];
2288 for (j = 0; j < vs->nb_streams; j++) {
2289 if (vs->streams[j] == st) {
2290 if ( st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE ) {
2306 av_log(s, AV_LOG_ERROR, "Unable to find mapping variant stream\n");
2307 return AVERROR(ENOMEM);
2310 end_pts = hls->recording_time * vs->number;
2312 if (vs->sequence - vs->nb_entries > hls->start_sequence && hls->init_time > 0) {
2313 /* reset end_pts, hls->recording_time at end of the init hls list */
2314 int64_t init_list_dur = hls->init_time * vs->nb_entries * AV_TIME_BASE;
2315 int64_t after_init_list_dur = (vs->sequence - hls->start_sequence - vs->nb_entries ) * (hls->time * AV_TIME_BASE);
2316 hls->recording_time = hls->time * AV_TIME_BASE;
2317 end_pts = init_list_dur + after_init_list_dur ;
2320 if (vs->start_pts == AV_NOPTS_VALUE) {
2321 vs->start_pts = pkt->pts;
2322 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
2323 vs->start_pts_from_audio = 1;
2325 if (vs->start_pts_from_audio && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && vs->start_pts > pkt->pts) {
2326 vs->start_pts = pkt->pts;
2327 vs->start_pts_from_audio = 0;
2330 if (vs->has_video) {
2331 can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
2332 ((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME));
2333 is_ref_pkt = (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->stream_index == vs->reference_stream_index);
2335 if (pkt->pts == AV_NOPTS_VALUE)
2336 is_ref_pkt = can_split = 0;
2339 if (vs->end_pts == AV_NOPTS_VALUE)
2340 vs->end_pts = pkt->pts;
2341 if (vs->new_start) {
2343 vs->duration = (double)(pkt->pts - vs->end_pts)
2344 * st->time_base.num / st->time_base.den;
2345 vs->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den;
2347 if (pkt->duration) {
2348 vs->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den;
2350 av_log(s, AV_LOG_WARNING, "pkt->duration = 0, maybe the hls segment duration will not precise\n");
2351 vs->duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den;
2357 if (vs->packets_written && can_split && av_compare_ts(pkt->pts - vs->start_pts, st->time_base,
2358 end_pts, AV_TIME_BASE_Q) >= 0) {
2359 int64_t new_start_pos;
2360 int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
2362 av_write_frame(oc, NULL); /* Flush any buffered data */
2363 new_start_pos = avio_tell(oc->pb);
2364 vs->size = new_start_pos - vs->start_pos;
2366 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2367 if (!vs->init_range_length) {
2368 range_length = avio_close_dyn_buf(oc->pb, &vs->init_buffer);
2369 if (range_length <= 0)
2370 return AVERROR(EINVAL);
2371 avio_write(vs->out, vs->init_buffer, range_length);
2372 if (!hls->resend_init_file)
2373 av_freep(&vs->init_buffer);
2374 vs->init_range_length = range_length;
2375 avio_open_dyn_buf(&oc->pb);
2376 vs->packets_written = 0;
2377 vs->start_pos = range_length;
2378 if (!byterange_mode) {
2379 hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
2383 if (!byterange_mode) {
2385 hlsenc_io_close(s, &vs->vtt_avf->pb, vs->vtt_avf->url);
2390 proto = avio_find_protocol_name(oc->url);
2391 use_temp_file = proto && !strcmp(proto, "file") && (hls->flags & HLS_TEMP_FILE);
2394 if (hls->flags & HLS_SINGLE_FILE) {
2395 ret = flush_dynbuf(vs, &range_length);
2396 av_freep(&vs->temp_buffer);
2400 vs->size = range_length;
2402 if ((hls->max_seg_size > 0 && (vs->size >= hls->max_seg_size)) || !byterange_mode) {
2403 AVDictionary *options = NULL;
2404 char *filename = NULL;
2405 if (hls->key_info_file || hls->encrypt) {
2406 av_dict_set(&options, "encryption_key", hls->key_string, 0);
2407 av_dict_set(&options, "encryption_iv", hls->iv_string, 0);
2408 filename = av_asprintf("crypto:%s", oc->url);
2410 filename = av_asprintf("%s", oc->url);
2413 av_dict_free(&options);
2414 return AVERROR(ENOMEM);
2417 // look to rename the asset name
2419 av_dict_set(&options, "mpegts_flags", "resend_headers", 0);
2421 set_http_options(s, &options, hls);
2423 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2425 av_log(s, hls->ignore_io_errors ? AV_LOG_WARNING : AV_LOG_ERROR,
2426 "Failed to open file '%s'\n", filename);
2427 av_dict_free(&options);
2428 return hls->ignore_io_errors ? 0 : ret;
2430 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2431 write_styp(vs->out);
2433 ret = flush_dynbuf(vs, &range_length);
2435 av_dict_free(&options);
2438 ret = hlsenc_io_close(s, &vs->out, filename);
2440 av_log(s, AV_LOG_WARNING, "upload segment failed,"
2441 " will retry with a new http session.\n");
2442 ff_format_io_close(s, &vs->out);
2443 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2444 reflush_dynbuf(vs, &range_length);
2445 ret = hlsenc_io_close(s, &vs->out, filename);
2447 av_dict_free(&options);
2448 av_freep(&vs->temp_buffer);
2449 av_freep(&filename);
2453 if (use_temp_file && !(hls->flags & HLS_SINGLE_FILE)) {
2454 hls_rename_temp_file(s, oc);
2457 old_filename = av_strdup(oc->url);
2458 if (!old_filename) {
2459 return AVERROR(ENOMEM);
2462 if (vs->start_pos || hls->segment_type != SEGMENT_TYPE_FMP4) {
2463 ret = hls_append_segment(s, hls, vs, vs->duration, vs->start_pos, vs->size);
2464 vs->end_pts = pkt->pts;
2467 av_freep(&old_filename);
2472 // if we're building a VOD playlist, skip writing the manifest multiple times, and just wait until the end
2473 if (hls->pl_type != PLAYLIST_TYPE_VOD) {
2474 if ((ret = hls_window(s, 0, vs)) < 0) {
2475 av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
2476 ff_format_io_close(s, &vs->out);
2478 if ((ret = hls_window(s, 0, vs)) < 0) {
2479 av_freep(&old_filename);
2485 if (hls->resend_init_file && hls->segment_type == SEGMENT_TYPE_FMP4) {
2486 ret = hls_init_file_resend(s, vs);
2488 av_freep(&old_filename);
2493 if (hls->flags & HLS_SINGLE_FILE) {
2495 vs->start_pos += vs->size;
2496 } else if (hls->max_seg_size > 0) {
2497 vs->start_pos = new_start_pos;
2498 if (vs->size >= hls->max_seg_size) {
2500 sls_flag_file_rename(hls, vs, old_filename);
2501 ret = hls_start(s, vs);
2503 /* When split segment by byte, the duration is short than hls_time,
2504 * so it is not enough one segment duration as hls_time, */
2509 vs->start_pos = new_start_pos;
2510 sls_flag_file_rename(hls, vs, old_filename);
2511 ret = hls_start(s, vs);
2513 av_freep(&old_filename);
2521 vs->packets_written++;
2523 ret = ff_write_chained(oc, stream_index, pkt, s, 0);
2524 vs->video_keyframe_size += pkt->size;
2525 if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->flags & AV_PKT_FLAG_KEY)) {
2526 vs->video_keyframe_size = avio_tell(oc->pb);
2528 vs->video_keyframe_pos = avio_tell(vs->out);
2530 if (hls->ignore_io_errors)
2537 static void hls_free_variant_streams(struct HLSContext *hls)
2540 AVFormatContext *vtt_oc = NULL;
2541 VariantStream *vs = NULL;
2543 for (i = 0; i < hls->nb_varstreams; i++) {
2544 vs = &hls->var_streams[i];
2545 vtt_oc = vs->vtt_avf;
2547 av_freep(&vs->basename);
2548 av_freep(&vs->base_output_dirname);
2549 av_freep(&vs->fmp4_init_filename);
2551 av_freep(&vs->vtt_basename);
2552 av_freep(&vs->vtt_m3u8_name);
2553 avformat_free_context(vtt_oc);
2556 avformat_free_context(vs->avf);
2557 if (hls->resend_init_file)
2558 av_freep(&vs->init_buffer);
2559 hls_free_segments(vs->segments);
2560 hls_free_segments(vs->old_segments);
2561 av_freep(&vs->m3u8_name);
2562 av_freep(&vs->streams);
2563 av_freep(&vs->agroup);
2564 av_freep(&vs->sgroup);
2565 av_freep(&vs->language);
2566 av_freep(&vs->ccgroup);
2567 av_freep(&vs->baseurl);
2568 av_freep(&vs->varname);
2572 static int hls_write_trailer(struct AVFormatContext *s)
2574 HLSContext *hls = s->priv_data;
2575 AVFormatContext *oc = NULL;
2576 AVFormatContext *vtt_oc = NULL;
2577 char *old_filename = NULL;
2578 const char *proto = NULL;
2579 int use_temp_file = 0;
2582 VariantStream *vs = NULL;
2583 AVDictionary *options = NULL;
2584 int range_length, byterange_mode;
2586 for (i = 0; i < hls->nb_varstreams; i++) {
2587 char *filename = NULL;
2588 vs = &hls->var_streams[i];
2590 vtt_oc = vs->vtt_avf;
2591 old_filename = av_strdup(oc->url);
2594 if (!old_filename) {
2595 return AVERROR(ENOMEM);
2597 if (hls->key_info_file || hls->encrypt) {
2598 av_dict_set(&options, "encryption_key", hls->key_string, 0);
2599 av_dict_set(&options, "encryption_iv", hls->iv_string, 0);
2600 filename = av_asprintf("crypto:%s", oc->url);
2602 filename = av_asprintf("%s", oc->url);
2605 av_freep(&old_filename);
2606 return AVERROR(ENOMEM);
2609 if ( hls->segment_type == SEGMENT_TYPE_FMP4) {
2610 int range_length = 0;
2611 if (!vs->init_range_length) {
2612 uint8_t *buffer = NULL;
2613 av_write_frame(oc, NULL); /* Flush any buffered data */
2615 range_length = avio_close_dyn_buf(oc->pb, &buffer);
2616 avio_write(vs->out, buffer, range_length);
2618 vs->init_range_length = range_length;
2619 avio_open_dyn_buf(&oc->pb);
2620 vs->packets_written = 0;
2621 vs->start_pos = range_length;
2622 byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
2623 if (!byterange_mode) {
2624 ff_format_io_close(s, &vs->out);
2625 hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
2629 if (!(hls->flags & HLS_SINGLE_FILE)) {
2630 set_http_options(s, &options, hls);
2631 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2633 av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
2636 if (hls->segment_type == SEGMENT_TYPE_FMP4)
2637 write_styp(vs->out);
2639 ret = flush_dynbuf(vs, &range_length);
2643 vs->size = range_length;
2644 hlsenc_io_close(s, &vs->out, filename);
2645 ret = hlsenc_io_close(s, &vs->out, filename);
2647 av_log(s, AV_LOG_WARNING, "upload segment failed, will retry with a new http session.\n");
2648 ff_format_io_close(s, &vs->out);
2649 ret = hlsenc_io_open(s, &vs->out, filename, &options);
2651 av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
2654 reflush_dynbuf(vs, &range_length);
2655 ret = hlsenc_io_close(s, &vs->out, filename);
2657 av_log(s, AV_LOG_WARNING, "Failed to upload file '%s' at the end.\n", oc->url);
2659 av_freep(&vs->temp_buffer);
2662 av_freep(&filename);
2663 av_write_trailer(oc);
2665 proto = avio_find_protocol_name(oc->url);
2666 use_temp_file = proto && !strcmp(proto, "file") && (hls->flags & HLS_TEMP_FILE);
2669 // rename that segment from .tmp to the real one
2670 if (use_temp_file && !(hls->flags & HLS_SINGLE_FILE)) {
2671 hls_rename_temp_file(s, oc);
2672 av_freep(&old_filename);
2673 old_filename = av_strdup(oc->url);
2675 if (!old_filename) {
2676 return AVERROR(ENOMEM);
2680 /* after av_write_trailer, then duration + 1 duration per packet */
2681 hls_append_segment(s, hls, vs, vs->duration + vs->dpp, vs->start_pos, vs->size);
2683 sls_flag_file_rename(hls, vs, old_filename);
2687 av_write_trailer(vtt_oc);
2688 vs->size = avio_tell(vs->vtt_avf->pb) - vs->start_pos;
2689 ff_format_io_close(s, &vtt_oc->pb);
2691 ret = hls_window(s, 1, vs);
2693 av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
2694 ff_format_io_close(s, &vs->out);
2695 hls_window(s, 1, vs);
2697 ffio_free_dyn_buf(&oc->pb);
2699 av_free(old_filename);
2702 hls_free_variant_streams(hls);
2704 for (i = 0; i < hls->nb_ccstreams; i++) {
2705 ClosedCaptionsStream *ccs = &hls->cc_streams[i];
2706 av_freep(&ccs->ccgroup);
2707 av_freep(&ccs->instreamid);
2708 av_freep(&ccs->language);
2711 ff_format_io_close(s, &hls->m3u8_out);
2712 ff_format_io_close(s, &hls->sub_m3u8_out);
2713 av_freep(&hls->key_basename);
2714 av_freep(&hls->var_streams);
2715 av_freep(&hls->cc_streams);
2716 av_freep(&hls->master_m3u8_url);
2721 static int hls_init(AVFormatContext *s)
2726 HLSContext *hls = s->priv_data;
2727 const char *pattern = "%d.ts";
2728 VariantStream *vs = NULL;
2729 int basename_size = 0;
2730 const char *pattern_localtime_fmt = get_default_pattern_localtime_fmt(s);
2731 const char *vtt_pattern = "%d.vtt";
2733 int vtt_basename_size = 0;
2734 int http_base_proto = ff_is_http_proto(s->url);
2735 int fmp4_init_filename_len = strlen(hls->fmp4_init_filename) + 1;
2737 hls->has_default_key = 0;
2738 hls->has_video_m3u8 = 0;
2739 ret = update_variant_stream_info(s);
2741 av_log(s, AV_LOG_ERROR, "Variant stream info update failed with status %x\n",
2745 //TODO: Updates needed to encryption functionality with periodic re-key when more than one variant streams are present
2746 if (hls->nb_varstreams > 1 && hls->flags & HLS_PERIODIC_REKEY) {
2747 ret = AVERROR(EINVAL);
2748 av_log(s, AV_LOG_ERROR, "Periodic re-key not supported when more than one variant streams are present\n");
2752 if (!hls->method && http_base_proto) {
2753 av_log(hls, AV_LOG_WARNING, "No HTTP method set, hls muxer defaulting to method PUT.\n");
2756 ret = validate_name(hls->nb_varstreams, s->url);
2760 if (hls->segment_filename) {
2761 ret = validate_name(hls->nb_varstreams, hls->segment_filename);
2766 if (av_strcasecmp(hls->fmp4_init_filename, "init.mp4")) {
2767 ret = validate_name(hls->nb_varstreams, hls->fmp4_init_filename);
2772 if (hls->subtitle_filename) {
2773 ret = validate_name(hls->nb_varstreams, hls->subtitle_filename);
2778 if (hls->master_pl_name) {
2779 ret = update_master_pl_info(s);
2781 av_log(s, AV_LOG_ERROR, "Master stream info update failed with status %x\n",
2787 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2790 if ((hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) ||
2791 (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME)) {
2792 time_t t = time(NULL); // we will need it in either case
2793 if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) {
2794 hls->start_sequence = (int64_t)t;
2795 } else if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME) {
2797 struct tm *p, tmbuf;
2798 if (!(p = localtime_r(&t, &tmbuf)))
2799 return AVERROR(errno);
2800 if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p))
2801 return AVERROR(ENOMEM);
2802 hls->start_sequence = strtoll(b, NULL, 10);
2804 av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
2807 hls->recording_time = (hls->init_time ? hls->init_time : hls->time) * AV_TIME_BASE;
2808 for (i = 0; i < hls->nb_varstreams; i++) {
2809 vs = &hls->var_streams[i];
2811 ret = format_name(s->url, &vs->m3u8_name, i, vs->varname);
2815 vs->sequence = hls->start_sequence;
2816 vs->start_pts = AV_NOPTS_VALUE;
2817 vs->end_pts = AV_NOPTS_VALUE;
2818 vs->current_segment_final_filename_fmt[0] = '\0';
2820 if (hls->flags & HLS_SPLIT_BY_TIME && hls->flags & HLS_INDEPENDENT_SEGMENTS) {
2821 // Independent segments cannot be guaranteed when splitting by time
2822 hls->flags &= ~HLS_INDEPENDENT_SEGMENTS;
2823 av_log(s, AV_LOG_WARNING,
2824 "'split_by_time' and 'independent_segments' cannot be enabled together. "
2825 "Disabling 'independent_segments' flag\n");
2828 if (hls->flags & HLS_PROGRAM_DATE_TIME) {
2831 vs->initial_prog_date_time = now0;
2834 for (j = 0; j < vs->nb_streams; j++) {
2835 vs->has_video += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO;
2836 /* Get one video stream to reference for split segments
2837 * so use the first video stream index. */
2838 if ((vs->has_video == 1) && (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)) {
2839 vs->reference_stream_index = vs->streams[j]->index;
2841 vs->has_subtitle += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE;
2844 if (vs->has_video > 1)
2845 av_log(s, AV_LOG_WARNING, "More than a single video stream present, expect issues decoding it.\n");
2846 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2847 vs->oformat = av_guess_format("mp4", NULL, NULL);
2849 vs->oformat = av_guess_format("mpegts", NULL, NULL);
2853 ret = AVERROR_MUXER_NOT_FOUND;
2857 if (vs->has_subtitle) {
2858 vs->vtt_oformat = av_guess_format("webvtt", NULL, NULL);
2859 if (!vs->vtt_oformat) {
2860 ret = AVERROR_MUXER_NOT_FOUND;
2864 if (hls->segment_filename) {
2865 ret = format_name(hls->segment_filename, &vs->basename, i, vs->varname);
2869 if (hls->flags & HLS_SINGLE_FILE) {
2870 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2877 if (hls->use_localtime) {
2878 basename_size = strlen(vs->m3u8_name) + strlen(pattern_localtime_fmt) + 1;
2880 basename_size = strlen(vs->m3u8_name) + strlen(pattern) + 1;
2883 vs->basename = av_malloc(basename_size);
2884 if (!vs->basename) {
2885 ret = AVERROR(ENOMEM);
2889 av_strlcpy(vs->basename, vs->m3u8_name, basename_size);
2891 p = strrchr(vs->basename, '.');
2894 if (hls->use_localtime) {
2895 av_strlcat(vs->basename, pattern_localtime_fmt, basename_size);
2897 av_strlcat(vs->basename, pattern, basename_size);
2901 if (hls->segment_type == SEGMENT_TYPE_FMP4) {
2902 if (hls->nb_varstreams > 1)
2903 fmp4_init_filename_len += strlen(POSTFIX_PATTERN);
2904 if (hls->flags & HLS_SINGLE_FILE) {
2905 vs->fmp4_init_filename = av_strdup(vs->basename);
2906 if (!vs->fmp4_init_filename) {
2907 ret = AVERROR(ENOMEM);
2911 vs->fmp4_init_filename = av_malloc(fmp4_init_filename_len);
2912 if (!vs->fmp4_init_filename ) {
2913 ret = AVERROR(ENOMEM);
2916 av_strlcpy(vs->fmp4_init_filename, hls->fmp4_init_filename,
2917 fmp4_init_filename_len);
2918 if (hls->nb_varstreams > 1) {
2919 if (av_stristr(vs->fmp4_init_filename, "%v")) {
2920 av_freep(&vs->fmp4_init_filename);
2921 format_name(hls->fmp4_init_filename, &vs->fmp4_init_filename, i, vs->varname);
2923 ret = append_postfix(vs->fmp4_init_filename, fmp4_init_filename_len, i);
2929 fmp4_init_filename_len = strlen(vs->m3u8_name) +
2930 strlen(vs->fmp4_init_filename) + 1;
2932 vs->base_output_dirname = av_malloc(fmp4_init_filename_len);
2933 if (!vs->base_output_dirname) {
2934 ret = AVERROR(ENOMEM);
2938 av_strlcpy(vs->base_output_dirname, vs->m3u8_name,
2939 fmp4_init_filename_len);
2940 p = strrchr(vs->base_output_dirname, '/');
2943 av_strlcat(vs->base_output_dirname, vs->fmp4_init_filename,
2944 fmp4_init_filename_len);
2946 av_strlcpy(vs->base_output_dirname, vs->fmp4_init_filename,
2947 fmp4_init_filename_len);
2952 ret = hls->use_localtime ? sls_flag_check_duration_size(hls, vs) : sls_flag_check_duration_size_index(hls);
2956 if (vs->has_subtitle) {
2958 if (hls->flags & HLS_SINGLE_FILE)
2959 vtt_pattern = ".vtt";
2960 vtt_basename_size = strlen(vs->m3u8_name) + strlen(vtt_pattern) + 1;
2962 vs->vtt_basename = av_malloc(vtt_basename_size);
2963 if (!vs->vtt_basename) {
2964 ret = AVERROR(ENOMEM);
2967 av_strlcpy(vs->vtt_basename, vs->m3u8_name, vtt_basename_size);
2968 p = strrchr(vs->vtt_basename, '.');
2972 if ( hls->subtitle_filename ) {
2973 ret = format_name(hls->subtitle_filename, &vs->vtt_m3u8_name, i, vs->varname);
2977 vs->vtt_m3u8_name = av_asprintf("%s_vtt.m3u8", vs->vtt_basename);
2978 if (!vs->vtt_m3u8_name) {
2979 ret = AVERROR(ENOMEM);
2983 av_strlcat(vs->vtt_basename, vtt_pattern, vtt_basename_size);
2987 vs->baseurl = av_strdup(hls->baseurl);
2989 ret = AVERROR(ENOMEM);
2994 if ((ret = hls_mux_init(s, vs)) < 0)
2997 if (hls->flags & HLS_APPEND_LIST) {
2998 parse_playlist(s, vs->m3u8_name, vs);
2999 vs->discontinuity = 1;
3000 if (hls->init_time > 0) {
3001 av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
3002 " hls_init_time value will have no effect\n");
3004 hls->recording_time = hls->time * AV_TIME_BASE;
3008 if ((ret = hls_start(s, vs)) < 0)
3014 hls_free_variant_streams(hls);
3015 for (i = 0; i < hls->nb_ccstreams; i++) {
3016 ClosedCaptionsStream *ccs = &hls->cc_streams[i];
3017 av_freep(&ccs->ccgroup);
3018 av_freep(&ccs->instreamid);
3019 av_freep(&ccs->language);
3021 av_freep(&hls->key_basename);
3022 av_freep(&hls->var_streams);
3023 av_freep(&hls->cc_streams);
3024 av_freep(&hls->master_m3u8_url);
3030 #define OFFSET(x) offsetof(HLSContext, x)
3031 #define E AV_OPT_FLAG_ENCODING_PARAM
3032 static const AVOption options[] = {
3033 {"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
3034 {"hls_time", "set segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
3035 {"hls_init_time", "set segment length in seconds at init list", OFFSET(init_time), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0, FLT_MAX, E},
3036 {"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
3037 {"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},
3038 {"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},
3039 {"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},
3041 {"hls_wrap", "set number after which the index wraps (will be deprecated)", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
3043 {"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},
3044 {"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3045 {"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3046 {"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
3047 {"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},
3048 {"hls_enc", "enable AES128 encryption support", OFFSET(encrypt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E},
3049 {"hls_enc_key", "hex-coded 16 byte key to encrypt the segments", OFFSET(key), AV_OPT_TYPE_STRING, .flags = E},
3050 {"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},
3051 {"hls_enc_iv", "hex-coded 16 byte initialization vector", OFFSET(iv), AV_OPT_TYPE_STRING, .flags = E},
3052 {"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3053 {"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"},
3054 {"mpegts", "make segment file to mpegts files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, UINT_MAX, E, "segment_type"},
3055 {"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"},
3056 {"hls_fmp4_init_filename", "set fragment mp4 file init filename", OFFSET(fmp4_init_filename), AV_OPT_TYPE_STRING, {.str = "init.mp4"}, 0, 0, E},
3057 {"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 },
3058 {"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
3059 {"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"},
3060 {"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"},
3061 {"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"},
3062 {"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, "flags"},
3063 {"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, "flags"},
3064 {"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, "flags"},
3065 {"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"},
3066 {"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"},
3067 {"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
3068 {"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"},
3069 {"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"},
3070 {"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"},
3071 {"periodic_rekey", "reload keyinfo file periodically for re-keying", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PERIODIC_REKEY }, 0, UINT_MAX, E, "flags"},
3072 {"independent_segments", "add EXT-X-INDEPENDENT-SEGMENTS, whenever applicable", 0, AV_OPT_TYPE_CONST, { .i64 = HLS_INDEPENDENT_SEGMENTS }, 0, UINT_MAX, E, "flags"},
3073 {"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"},
3074 #if FF_API_HLS_USE_LOCALTIME
3075 {"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 },
3077 {"strftime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
3078 #if FF_API_HLS_USE_LOCALTIME
3079 {"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 },
3081 {"strftime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
3082 {"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" },
3083 {"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, "pl_type" },
3084 {"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, "pl_type" },
3085 {"method", "set the HTTP method(default: PUT)", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3086 {"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" },
3087 {"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" },
3088 {"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" },
3089 {"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" },
3090 {"http_user_agent", "override User-Agent field in HTTP header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3091 {"var_stream_map", "Variant stream map string", OFFSET(var_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3092 {"cc_stream_map", "Closed captions stream map string", OFFSET(cc_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3093 {"master_pl_name", "Create HLS master playlist with this name", OFFSET(master_pl_name), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
3094 {"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},
3095 {"http_persistent", "Use persistent HTTP connections", OFFSET(http_persistent), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
3096 {"timeout", "set timeout for socket I/O operations", OFFSET(timeout), AV_OPT_TYPE_DURATION, { .i64 = -1 }, -1, INT_MAX, .flags = E },
3097 {"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 },
3098 {"headers", "set custom HTTP headers, can override built in default headers", OFFSET(headers), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
3102 static const AVClass hls_class = {
3103 .class_name = "hls muxer",
3104 .item_name = av_default_item_name,
3106 .version = LIBAVUTIL_VERSION_INT,
3110 AVOutputFormat ff_hls_muxer = {
3112 .long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
3113 .extensions = "m3u8",
3114 .priv_data_size = sizeof(HLSContext),
3115 .audio_codec = AV_CODEC_ID_AAC,
3116 .video_codec = AV_CODEC_ID_H264,
3117 .subtitle_codec = AV_CODEC_ID_WEBVTT,
3118 .flags = AVFMT_NOFILE | AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_NODIMENSIONS,
3120 .write_header = hls_write_header,
3121 .write_packet = hls_write_packet,
3122 .write_trailer = hls_write_trailer,
3123 .priv_class = &hls_class,