opencast hls multiaudio encoding based on palla team

profile.fast-paellateam.multi.name = hls from palla team example
profile.fast-paellateam.multi.input = audiovisual
profile.fast-paellateam.multi.output = audiovisual
profile.fast-paellateam.multi.suffix = .m3u8
profile.fast-paellateam.multi.ffmpeg.command = -i #{in.video.path} \
-filter_complex \
"[0:v]split=3[v1][v2][v3];\
[v1]copy[v1out];\
[v2]scale=w=1280:h=720[v2out];\
[v3]scale=w=640:h=360[v3out]" \
-map [v1out] -c:v:0 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:0 5M -maxrate:v:0 5M -minrate:v:0 5M -bufsize:v:0 10M -preset slow -g 48 -sc_threshold 0 -keyint_min 48 \
-map [v2out] -c:v:1 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:1 3M -maxrate:v:1 3M -minrate:v:1 3M -bufsize:v:1 3M -preset slow -g 48 -sc_threshold 0 -keyint_min 48 \
-map [v3out] -c:v:2 libx264 -x264-params "nal-hrd=cbr:force-cfr=1" -b:v:2 1M -maxrate:v:2 1M -minrate:v:2 1M -bufsize:v:2 1M -preset slow -g 48 -sc_threshold 0 -keyint_min 48 \
-map 0:a:0 -c:a:0 aac -b:a:0 96k -ac 2 \
-map 1:a:0 -c:a:1 aac -b:a:1 96k -ac 2 \
-map 2:a:0 -c:a:2 aac -b:a:2 48k -ac 2 \
-f hls \
-hls_time 2 \
-hls_playlist_type vod \
-hls_flags independent_segments \
-hls_segment_type mpegts \
-hls_segment_filename #{out.dir}/#{out.name}_stream_%v_data%02d.ts \
-master_pl_name master.m3u8 \
-var_stream_map "a:0,agroup:audio,default:yes,language:en,name:en a:1,agroup:audio,default:no,language:et,name:et a:2,agroup:audio,default:no,language:ru,name:ru v:0,agroup:audio,name:1080 v:1,agroup:audio,name:720 v:2,agroup:audio,name:360" \
#{out.dir}/#{out.name}_stream_%v#{out.suffix}