Here is the example of content of file
#EXTM3U
#EXT-X-VERSION:3
#EXT-X-STREAM-INF:BANDWIDTH=284000,CODECS="avc1.66.21,mp4a.40.2",RESOLUTION=284x160
chunklist_b264000.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=449000,CODECS="avc1.66.30,mp4a.40.2",RESOLUTION=426x240
chunklist_b414000.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=724000,CODECS="avc1.66.31,mp4a.40.2",RESOLUTION=854x480
chunklist_b664000.m3u8
You can parse BANDWIDTH, CODECS,RESOLUTION etc from this file