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