- Validate
av1_vaapion real Linux VAAPI hardware — confirm encode succeeds with current args. - Validate
av1_amfon real Windows AMF hardware — confirm encode succeeds with current args. - If either encoder needs quality/rate-control params, apply the same pattern as the VideoToolbox fix (add
rate_control: Option<&RateControl>tovaapi::append_argsandamf::append_args). - Update support claims in README and UI only after validation passes.