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| author | Steven Liu <lq@chinaffmpeg.org> | 2019-01-23 19:19:49 +0800 |
|---|---|---|
| committer | Steven Liu <lq@chinaffmpeg.org> | 2019-01-31 16:17:11 +0800 |
| commit | 1e03d600542d7e6ccd3ee94062174ae29383bef7 (patch) | |
| tree | 6fa95ad3a435c14e9ab73bc595d6ca8c8889a3ec /doc | |
| parent | 6a25bb5aa42285441dbe7d3372f598bb7ac7c4bf (diff) | |
| download | ffmpeg-1e03d600542d7e6ccd3ee94062174ae29383bef7.tar.gz | |
avformat/hlsenc: add var_stream_map LANGUAGE field string parameter
use a:0,agroup:aud_low,default:Yes,language:CHN a:1,agroup:aud_low,language:ENG
a:2,agroup:aud_high,default:YesYes,language:CHN a:3,agroup:aud_high,language:ENG
v:0,agroup:aud_low v:1,agroup:aud_high
create master m3u8 list.
result:
EXTM3U
EXT-X-VERSION:3
EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_aud_low",NAME="audio_0",DEFAULT=YES,LANGUAGE="CHN",URI="out_0.m3u8"
EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_aud_low",NAME="audio_1",DEFAULT=NO,LANGUAGE="ENG",URI="out_1.m3u8"
EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_aud_high",NAME="audio_2",DEFAULT=YES,LANGUAGE="CHN",URI="out_2.m3u8"
EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_aud_high",NAME="audio_3",DEFAULT=NO,LANGUAGE="ENG",URI="out_3.m3u8"
EXT-X-STREAM-INF:BANDWIDTH=1170400,RESOLUTION=640x480,CODECS="avc1.64001e,mp4a.40.2",AUDIO="group_aud_low"
out_4.m3u8
EXT-X-STREAM-INF:BANDWIDTH=3440800,RESOLUTION=640x480,CODECS="avc1.64001e,mp4a.40.2",AUDIO="group_aud_high"
out_5.m3u8
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/muxers.texi | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/doc/muxers.texi b/doc/muxers.texi index 60c22ddd26..7f7e607946 100644 --- a/doc/muxers.texi +++ b/doc/muxers.texi @@ -982,6 +982,22 @@ and they are mapped to the one video only variant streams with audio group name By default, a single hls variant containing all the encoded streams is created. +@example +ffmpeg -re -i in.ts -b:a:0 32k -b:a:1 64k -b:v:0 1000k \ + -map 0:a -map 0:a -map 0:v -f hls \ + -var_stream_map "a:0,agroup:aud_low,default:yes,language=ENG a:1,agroup:aud_low,language:CHN v:0,agroup:aud_low" \ + -master_pl_name master.m3u8 \ + http://example.com/live/out_%v.m3u8 +@end example +This example creates two audio only and one video only variant streams. In +addition to the #EXT-X-STREAM-INF tag for each variant stream in the master +playlist, #EXT-X-MEDIA tag is also added for the two audio only variant streams +and they are mapped to the one video only variant streams with audio group name +'aud_low', and the audio group have default stat is NO or YES, and one audio +have and language is named ENG, the other audio language is named CHN. + +By default, a single hls variant containing all the encoded streams is created. + @item cc_stream_map Map string which specifies different closed captions groups and their attributes. The closed captions stream groups are separated by space. |