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VP9 HW acceleration on Stadia Pro
tesfabpel 24 Mar
My System Info

Linux Distribution: ArchLinux
Desktop Environment: GNOME Wayland
Graphics Card: AMD Radeon RX 5700 XT
GPU Driver Version: linux: 5.11.8-arch1-1, mesa: 20.3.4-3

Have you checked for system updates?: Yes

You can note your issue below here
Is anyone able to get VP9 hardware decoding working on Stadia? I only managed to get HW H264 decoding for Full HD but now I have a 4k display and decoding a 4k video with the CPU is inducing input lag in the stream...

I use the Stadia Enhanced extension to be able to set the 4k resolution since in the normal Stadia settings, it says that 4k is not available in my computer (I have Stadia Pro). The extension adds a Monitor Stream panel and there it says Software VP9.

These are my current flags: (saved in `~/.config/chromium-flags.conf`)

 
--ignore-gpu-blocklist
--enable-gpu-rasterization
--enable-zero-copy
--enable-native-gpu-memory-buffers
--disable-gpu-driver-bug-workarounds

--enable-accelerated-video-decode

--enable-features=VaapiVideoDecoder


vainfo says:
 
vainfo: VA-API version: 1.11 (libva 2.11.0)
vainfo: Driver version: Mesa Gallium driver 20.3.4 for AMD Radeon RX 5700 XT (NAVI10, DRM 3.40.0, 5.11.8-arch1-1, LLVM 11.1.0)
vainfo: Supported profile and entrypoints
      [...]
      VAProfileVP9Profile0            : VAEntrypointVLD
      VAProfileVP9Profile2            : VAEntrypointVLD
      [...]
SuperTux 24 Mar
Try Stadia +

https://chrome.google.com/webstore/detail/stadia%20-extension/bbhmnnecicphphjamhdefpagipoegijd?hl=en

Works for me, however I am using an Nvidia 2070 with those proprietary drivers, so ymmv.
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