Comments for UlduzSoft

Comment on Reverse-engineering the KaraFun file format. Part 1, the header by George

George — Wed, 04 Oct 2023 20:47:54 +0000

Yep demucs works quite well.

Comment on Reverse-engineering the KaraFun file format. Part 1, the header by Víctor Juárez Cabrera

Víctor Juárez Cabrera — Wed, 04 Oct 2023 20:45:23 +0000

Thank you very much for your code, it helped me a lot to be able to generate kfn files from a java application. Now with the software to remove the voice from an audio it allows you to automate many processes and create karaokes, if you like one day I will show you my application.

Comment on Reverse-engineering the KaraFun file format. Part 4, the encryption by Giovanni

Giovanni — Wed, 16 Aug 2023 19:34:54 +0000

Hi George,
did you add the decodificatio nsupport for the wev KFN format? If you need I can send you some KFN file to test.

Comment on select / poll / epoll: practical difference for system architects by Aleks

Aleks — Thu, 22 Sep 2022 16:17:01 +0000

int ret = poll( &fds, 2, 10000 );
should bee
int ret = poll( fds, 2, 10000 );

Comment on select / poll / epoll: practical difference for system architects by Mercutio

Mercutio — Sun, 09 Jan 2022 14:59:58 +0000

@SD: There is an epoll replacement for Windows: https://github.com/piscisaureus/wepoll
It is indeed very stable and runs fine on Windows 7…10.

Comment on Reverse-engineering the KaraFun file format. Part 4, the encryption by Titobal

Titobal — Sun, 16 Aug 2020 08:00:46 +0000

Hi, I’m working on it … but kind of stuck… :-/

Comment on Reverse-engineering the KaraFun file format. Part 4, the encryption by Titobal

Titobal — Mon, 03 Aug 2020 06:03:48 +0000

Hi, I have the same question. I have a KFN version of a song and the local cached data of this song.

The locally cached data files are encrypted, indeed they are mostly the files contained into the KFN but unzipped in a folder and encrypted and the audio differs from *.ogg to *.aac

George, could you have a look ? You can PM me + I have the files available.

Comment on Reverse-engineering the KaraFun file format. Part 1, the header by morsik

morsik — Sat, 18 Jan 2020 17:08:29 +0000

Thanks! I’ll look at this. Looks the easiest way…
I was thinking about using OpenSSL for that, but it’s API is difficult and I need decryption only for this.

Comment on Reverse-engineering the KaraFun file format. Part 1, the header by George

George — Sat, 18 Jan 2020 06:52:57 +0000

My project implements it: https://github.com/gyunaev/spivak/blob/master/src/karaokeplayable_kfn.cpp

Comment on Reverse-engineering the KaraFun file format. Part 1, the header by morsik

morsik — Fri, 17 Jan 2020 20:07:37 +0000

I implement uncrypting using Python using actually this reverse engineering and it worked, but unfortunately I lost that part of code 🙁
Still working on uncrypting in Qt/C+.