$ curl https://devstreaming-cdn.apple.com/videos/wwdc/2017/504op4c3001w2f222/504/hls_vod_mvp.m3u8 | head # EXTM3U # EXT-X-VERSION:4 # EXT-X-STREAM-INF:BANDWIDTH=1096572,AVERAGE-BANDWIDTH=1096572,CODECS="avc1.77.30,mp4a.40.2",RESOLUTION=640x360 0640/0640.m3u8 # EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=548286,AVERAGE-BANDWIDTH=548286,CODECS="avc1.77.30,mp4a.40.2",RESOLUTION=640x360,URI="0640/0640_I-Frame.