[Webkit-unassigned] [Bug 86410] [texmap][GStreamer] Composited Video support

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Oct 12 11:32:57 PDT 2012


--- Comment #43 from Martin Robinson <mrobinson at webkit.org>  2012-10-12 11:33:39 PST ---
(In reply to comment #42)
> (In reply to comment #36)
> > do you suggest we ask gstreamer to send the buffer data as yuv, and perform the conversion ourselves. But so, how can we evaluate the performance win ?
> I made some tests: I applied my patch. Then I asked gstreamer for some planar yuv format, and performed the conversion on the shader. With a few videos on a page, GtkLauncher seemed less responsive with accelerated compositing than without. So unless, there is a better way to achieve that, it seems like it decreases performance. I do not have numbers to back that claim though.

Could it be that you are uploading and downloading  to th GPU more than you think? What happens if you turn the shader off and just render the YUV data directly? Is accelerated compositing slow for you, in general?

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