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Test with the following command for the webvtt subtitle: $ ./ffmpeg -y -i input_with_subtitle.mkv \ -b✌️0 5250k -c:v h264 -pix_fmt yuv420p -profile:v main -level 4.1 \ -b🅰️0 256k \ -c:s webvtt -c:a mp2 -ar 48000 -ac 2 -map 0:v -map 0🅰️0 -map 0:s:0 \ -f hls -var_stream_map "v:0,a:0,s:0,sgroup:subtitle" \ -master_pl_name master.m3u8 -t 300 -hls_time 10 -hls_init_time 4 -hls_list_size \ 10 -master_pl_publish_rate 10 -hls_flags \ delete_segments+discont_start+split_by_time ./tmp/video.m3u8 Check the master m3u8: $ cat tmp/master.m3u8 #EXTM3U #EXT-X-VERSION:3 #EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subtitle",NAME="subtitle_0",DEFAULT=YES,URI="video_vtt.m3u8" #EXT-X-STREAM-INF:BANDWIDTH=6056600,RESOLUTION=1280x720,CODECS="avc1.4d4829,mp4a.40.33",SUBTITLES="subtitle" video.m3u8 Check the result by convert to mkv: $ ./ffmpeg -strict experimental -i ./tmp/master.m3u8 -c:v copy -c:a mp2 -c:s srt ./test.mkv Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
62 lines
2.7 KiB
C
62 lines
2.7 KiB
C
/*
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* Apple HTTP Live Streaming segmenter
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* Copyright (c) 2012, Luca Barbato
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* Copyright (c) 2017 Akamai Technologies, Inc.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVFORMAT_HLSPLAYLIST_H
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#define AVFORMAT_HLSPLAYLIST_H
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#include <stdint.h>
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#include "libavutil/common.h"
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#include "avformat.h"
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#include "avio.h"
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typedef enum {
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PLAYLIST_TYPE_NONE,
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PLAYLIST_TYPE_EVENT,
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PLAYLIST_TYPE_VOD,
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PLAYLIST_TYPE_NB,
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} PlaylistType;
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void ff_hls_write_playlist_version(AVIOContext *out, int version);
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void ff_hls_write_audio_rendition(AVIOContext *out, char *agroup,
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const char *filename, char *language, int name_id, int is_default);
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void ff_hls_write_subtitle_rendition(AVIOContext *out, char *sgroup,
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const char *filename, char *language, int name_id, int is_default);
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void ff_hls_write_stream_info(AVStream *st, AVIOContext *out,
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int bandwidth, const char *filename, char *agroup,
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char *codecs, char *ccgroup, char *sgroup);
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void ff_hls_write_playlist_header(AVIOContext *out, int version, int allowcache,
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int target_duration, int64_t sequence,
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uint32_t playlist_type, int iframe_mode);
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void ff_hls_write_init_file(AVIOContext *out, char *filename,
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int byterange_mode, int64_t size, int64_t pos);
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int ff_hls_write_file_entry(AVIOContext *out, int insert_discont,
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int byterange_mode,
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double duration, int round_duration,
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int64_t size, int64_t pos, //Used only if HLS_SINGLE_FILE flag is set
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char *baseurl, //Ignored if NULL
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char *filename, double *prog_date_time,
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int64_t video_keyframe_size, int64_t video_keyframe_pos, int iframe_mode);
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void ff_hls_write_end_list (AVIOContext *out);
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#endif /* AVFORMAT_HLSPLAYLIST_H_ */
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