Function gstreamer_rtp_sys::gst_rtp_header_extension_set_caps_from_attributes

pub unsafe extern "C" fn gst_rtp_header_extension_set_caps_from_attributes(
    ext: *mut GstRTPHeaderExtension, 
    caps: *mut GstCaps
) -> gboolean

This is supported on crate feature v1_20 only.