Function XmfVpxEncoder_EncodeFrame 

pub unsafe extern "C" fn XmfVpxEncoder_EncodeFrame(
    ctx: *mut XmfVpxEncoder,
    image: *const XmfVpxImage,
    pts: i64,
    duration: usize,
    flags: u32,
) -> c_int

Performs a FFI call to XmfVpxEncoder_EncodeFrame from the globally loaded dynamic library xmf

Safety

• The ABI of the function must be the one we expect
• See other preconditions in documentation of the C library