[Webkit-unassigned] [Bug 232925] [GTK] cannot play video with accelerated compositing enabled and gstreamer-vaapi installed

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=232925

--- Comment #15 from Tic2929014466 at hotmail.com ---
(In reply to Michael Catanzaro from comment #14)
> It looks like the GStreamer devs have reproduced the issue without WebKit
> involved at all [1].
> 
> We already established that the bug requires accelerated compositing mode.
> As to why WEBKIT_FORCE_SANDBOX makes a difference, I don't know, but maybe
> the sandbox is blocking access to something that vaapi needs, "fixing" the
> issue? Hi Victor, any thoughts on that?
> 
> [1]
> https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/877#note_1154667

I didn't expect WEBKIT_FORCE_SANDBOX fix the problem, that was because I wanted to make Epiphany perform more like WebKit MiniBrowser. Now I think hardware compositing and hardware video acceleration are two different modules, and they have a mystic conflict when both enabled. Sandbox plays a role, though.

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