#EXT-X-VERSION:3
#EXT-X-TARGETDURATION:17
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-KEY:METHOD=AES-128,URI="https://www.xiaoqiqiao.com/mps/secret/key/MWNVUmZXZVRrS3N5RCtWTHMvNzNhd25tQnJuRCtyUmN2UUZEM2tWdXV3a2ovSXJDNjFYMUo3QkxUV1FHWTdLd1J5TnJubmFmRlJpdTkxUkg3cVpVbGVFckFYb3pTR05naWxPYVFhNmhpK0JSWE9DbkNReEdPV0Nqb2p0dlhyRDdpYk9lanREb0ljWnJFSDc5aG8zU1FSbVluS1MzR0JNRjlnPT0=",IV=0x8708DEF7C0B94F7B976056FB3EC12C38
#EXTINF:16.666667,
video0.ts
#EXTINF:16.666667,
video1.ts
#EXTINF:16.666667,
video2.ts
#EXTINF:16.666667,
video3.ts
#EXTINF:16.666667,
video4.ts
#EXTINF:16.666667,
video5.ts
................
这类m3u8如何分析出key，最后如何成功解析出视频
