Function gstreamer_gl_sys::gst_gl_format_type_from_sized_gl_format

pub unsafe extern "C" fn gst_gl_format_type_from_sized_gl_format(
    format: GstGLFormat, 
    unsized_format: *mut GstGLFormat, 
    gl_type: *mut c_uint
)

This is supported on crate feature v1_16 only.