Function rsmpeg::ffi::av_format_set_open_cb

pub unsafe extern "C" fn av_format_set_open_cb(
    s: *mut AVFormatContext, 
    callback: Option<unsafe extern "C" fn(*mut AVFormatContext, *mut *mut AVIOContext, *const i8, i32, *const AVIOInterruptCB, *mut *mut AVDictionary) -> i32>
)