Support AES encryption in native HLS downloader

[fb39ca4]

I am trying to get an extractor for daisuki.net working, but the M3U8 playlists have encryption keys.

Example:

#EXTM3U
#EXT-X-TARGETDURATION:10
#EXT-X-ALLOW-CACHE:YES
#EXT-X-KEY:METHOD=AES-128,URI="https://bngn-vh.akamaihd.net/i/43383936/35470338/smil/CA/00020/356591040701399.smil/crypt.key?null=&id=AgCAvZDZFzu8D7zB%2fVWWIHWJSVAxHhHvQvX7rIh3HuHom+D7tYdUh3WhlOWdnZuvwpxzfRMVvdeH8w%3d%3d"
#EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:1
#EXTINF:10.000,
http://bngn-vh.akamaihd.net/i/43383936/35470338/smil/CA/00020/356591040701399.smil/segment1_1000000_av.ts?null=&id=AgCAvZDZFzu8D7zB%2fVWWIHWJSVAxHhHvQvX7rIh3HuHom+D7tYdUh3WhlOWdnZuvwpxzfRMVvdeH8w%3d%3d
#EXTINF:10.000,
http://bngn-vh.akamaihd.net/i/43383936/35470338/smil/CA/00020/356591040701399.smil/segment2_1000000_av.ts?null=&id=AgCAvZDZFzu8D7zB%2fVWWIHWJSVAxHhHvQvX7rIh3HuHom+D7tYdUh3WhlOWdnZuvwpxzfRMVvdeH8w%3d%3d
#EXTINF:10.000,
http://bngn-vh.akamaihd.net/i/43383936/35470338/smil/CA/00020/356591040701399.smil/segment3_1000000_av.ts?null=&id=AgCAvZDZFzu8D7zB%2fVWWIHWJSVAxHhHvQvX7rIh3HuHom+D7tYdUh3WhlOWdnZuvwpxzfRMVvdeH8w%3d%3d
...

[jaimeMF]

There's a proposed implementation in #5882.
Note that ffmpeg should be able to download it (although it doesn't support ressuming)

[fb39ca4]

Haven't been able to pass cookies to ffmpeg successfully, which are needed for Daisuki.

[remitamine]

you can use the code in this commit remitamine/youtube-dl@801cfb8 to be able to pass cookies to ffmpeg.

[remitamine]

Haven't been able to pass cookies to ffmpeg successfully, which are needed for Daisuki.

it should work with latest master branch (#6267 (comment))

[yan12125]

Thanks to @remitamine (#8201), AES decryption will be supported in the next version.