Video Encoding with multiple resolutions

encoding.txt

ffmpeg -i "c:/videos/sample.mp4
-map 0:v:0 -map 0:a:0 -map 0:v:0 -map 0:a:0 -map 0:v:0 -map 0:a:0
-c:v libx264 -crf 22 -c:a aac -ar 48000
-filter:v:0 scale=w=480:h=360  -maxrate:v:0 600k -b:a:0 64k 
-filter:v:1 scale=w=640:h=480  -maxrate:v:1 900k -b:a:1 128k 
-filter:v:2 scale=w=1280:h=720 -maxrate:v:2 900k -b:a:2 128k 
-var_stream_map "v:0,a:0,name:360p v:1,a:1,name:480p v:2,a:2,name:720p"
-preset slow -hls_list_size 0 -threads 0 -f hls -hls_playlist_type event -hls_time 3
-hls_flags independent_segments -master_pl_name "name-pl.m3u8"
"c:/videos/encoded/name-%v.m3u8"