| VA-API cannot be put on top of venus: it is a STATEFUL V4L2 decoder and VA-API’s model is stateless, which is why only GStreamer-based browsers get hardware decode here |
finding |
generic |
proven |
| YouTube’s judder on taimen is 2160p60 being served, plus venus clocked for 30 fps because vdec had no VIDIOC_G_PARM – not the compositor, not buffer counts |
finding |
device:google-taimen |
proven |
| The multi-second YouTube freezes are a CSS blur() painted in software on the web process main thread, because the GTK port never composites a layer for its filter |
finding |
device:google-taimen |
proven |
| A 4:4:4 test clip makes working hardware decode look broken |
trap |
generic |
proven |
