I have a little optimization suggestion

[SONGjiemo]

1. I hope to build a version for me, I am not a developer and hope to provide an installation package
2. To download m3u8, you can use yt-dlp to download. It can download files in multiple threads, ffmpeg can only download in one thread and is very slow.
   https://github.com/yt-dlp/yt-dlp