@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" \
+ -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
/**
* Expected format for var_stream_map string is as below:
* "a:0,v:0 a:1,v:1"
- * "a:0,agroup:a0,default:1,language:ENG a:1,agroup:a1,defalut:0 v:0,agroup:a0 v:1,agroup:a1"
+ * "a:0,agroup:a0,default:1,language:ENG a:1,agroup:a1,default:0 v:0,agroup:a0 v:1,agroup:a1"
* This string specifies how to group the audio, video and subtitle streams
* into different variant streams. The variant stream groups are separated
* by space.