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| author | Limin Wang <lance.lmwang@gmail.com> | 2020-03-29 19:13:44 +0800 |
|---|---|---|
| committer | Steven Liu <lq@chinaffmpeg.org> | 2020-04-08 23:02:41 +0800 |
| commit | cd8c5e89ba4bb9160a1a42c1d612a3f2b9085a6a (patch) | |
| tree | c3cb36e99806be92a57637793d33b627f2e42d66 /libavformat/hlsplaylist.h | |
| parent | 73dc87c4f07f82b9756b3bbf4d4e9f18e46ef2e3 (diff) | |
| download | ffmpeg-cd8c5e89ba4bb9160a1a42c1d612a3f2b9085a6a.tar.gz | |
avformat: add subtitle support in master playlist m3u8
Test with the following command for the webvtt subtitle:
$ ./ffmpeg -y -i input_with_subtitle.mkv \
-b:v:0 5250k -c:v h264 -pix_fmt yuv420p -profile:v main -level 4.1 \
-b:a:0 256k \
-c:s webvtt -c:a mp2 -ar 48000 -ac 2 -map 0:v -map 0:a: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>
Diffstat (limited to 'libavformat/hlsplaylist.h')
| -rw-r--r-- | libavformat/hlsplaylist.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavformat/hlsplaylist.h b/libavformat/hlsplaylist.h index a8d29d62d3..a124bdcffb 100644 --- a/libavformat/hlsplaylist.h +++ b/libavformat/hlsplaylist.h @@ -39,9 +39,11 @@ typedef enum { void ff_hls_write_playlist_version(AVIOContext *out, int version); void ff_hls_write_audio_rendition(AVIOContext *out, char *agroup, const char *filename, char *language, int name_id, int is_default); +void ff_hls_write_subtitle_rendition(AVIOContext *out, char *sgroup, + const char *filename, char *language, int name_id, int is_default); void ff_hls_write_stream_info(AVStream *st, AVIOContext *out, int bandwidth, const char *filename, char *agroup, - char *codecs, char *ccgroup); + char *codecs, char *ccgroup, char *sgroup); void ff_hls_write_playlist_header(AVIOContext *out, int version, int allowcache, int target_duration, int64_t sequence, uint32_t playlist_type, int iframe_mode); |