Help me for write a multimedia player for my own OS

[FFmpeg]

Hello frindes.

I am writting a OS under FreePascal and NASM for me.

I want write a multimedia player for it under pascal language.

But any resource about open source video and audio player
in INTERNET was under C language and I don't know C language.

I found FFMPEG in INTERNET that is base of many projects but it is
under C language.

how I use this project in my os under pascal language?
my OS can run programs with COFF format files.
please guide and help me.

so much thanks.

[Murray]

If all you can find is written in C and not in Pascal, there must be some reason.

Just learn C.