Download encrypted HTTP live streaming video

Notice

I wrote this article and was originally published on Qiita on 18 March 2023.

Belows is an example of streaming video definition file. Meaning of directive is shown in here. It can be processed by HTML5 player such as DPlayer.

#EXTM3U
#EXT-X-VERSION:3
#EXT-X-TARGETDURATION:2
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-KEY:METHOD=AES-128,URI="https://www.example.com/video/b1cf799d0c2d9400fb437c1e912bfa8f/4433218.key",IV=0xed580cc71ef06c8e3cd6941e75a86f27
#EXTINF:
https://video.example.com/b1cf799d0c2d9400fb437c1e912bfa8f/i0.ts
#EXTINF:
https://video.example.com/b1cf799d0c2d9400fb437c1e912bfa8f/i1.ts
#EXTINF:
https://video.example.com/b1cf799d0c2d9400fb437c1e912bfa8f/i2.ts
#EXTINF:
https://video.example.com/b1cf799d0c2d9400fb437c1e912bfa8f/i3.ts
#EXTINF:
https://video.example.com/b1cf799d0c2d9400fb437c1e912bfa8f/i4.ts
#EXTINF:
https://video.example.com/b1cf799d0c2d9400fb437c1e912bfa8f/i5.ts
#EXTINF:
https://video.example.com/b1cf799d0c2d9400fb437c1e912bfa8f/i6.ts
#EXTINF:
https://video.example.com/b1cf799d0c2d9400fb437c1e912bfa8f/i7.ts
#EXTINF:
https://video.example.com/b1cf799d0c2d9400fb437c1e912bfa8f/i8.ts
#EXTINF:
https://video.example.com/b1cf799d0c2d9400fb437c1e912bfa8f/i9.ts
#EXTINF:
https://video.example.com/b1cf799d0c2d9400fb437c1e912bfa8f/i10.ts
#EXT-X-ENDLIST

This video contains 11 segments, is encrypted …

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