Le 27/06/2017 à 09:54, Mark Thompson a écrit : > On 27/06/17 07:38, David Fort wrote: >> Wayland environment became quite popular with gnome 3. This patch adds the >> ability to >> initialize the VAAPI accelerator from a wayland display. > > Is there some specific use-case which needs this? The X11 support mainly > exists because of old systems (*cough* Intel Media SDK *cough*) which don't > support render nodes, and therefore have to connect to a DRM master device - > if X11 is running then it has to use the DRI2 authentication ritual to do > that. > > Anything recent should be connecting via the render node, which allows it to > be used independently of any other system and has clear control over what > hardware you are using on systems with multiple possibilities. >
Hi, my final goal is to have a h264 video rendered directly in a surface (using ffmpeg as a library). If render nodes surfaces can be displayed on the screen then I'm fine with it and forget about that patch. I did some tests and I had the impression that when the rendering was done with a DRI render node, it was slower than when the VADisplay was grabbeb from wayland (F25 with gnome3). But it may be just an impression or a test bias. Best regards. -- David FORT website: http://www.hardening-consulting.com/
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