#EXTM3U #EXT-X-VERSION:3 #EXT-X-ALLOW-CACHE:NO #EXT-X-TARGETDURATION:2 #EXT-X-MEDIA-SEQUENCE:1 #EXTINF:1.900000, hls1.ts #EXTINF:1.977000, hls2.ts #EXTINF:1.900000, hls3.ts #EXTINF:1.636000, hls4.ts