Documentation for mp3dec_ex_read_frame()?

[mgeier]

It took me a while, but I'm finally updating my Rust bindings: mgeier/minimp3_ex-sys#3

While doing that, I didn't find any documentation of mp3dec_ex_read_frame() in the README.md.

I think its usage is mostly clear from its similarity with mp3dec_ex_read(), but I'm wondering about the exact requirements for the frame_info parameter (which has been added in d86f4cb).

I understand that it has to be zero-initialized in the beginning, but does it have to be reset at any later point in time?

Especially when seeking, should frame_info be reset after that or not?