[Webkit-unassigned] [Bug 34631] [Qt] Switching from Phonon to QtMultimedia Backend for Qt 4.7

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Feb 16 16:06:47 PST 2010


--- Comment #22 from Nick Young <nicholas.young at nokia.com>  2010-02-16 16:06:47 PST ---
(In reply to comment #21)
> Tested on Mac OS 10.6 with qt-multimedia
> dc7a0b2842a5866b6248e56d41db0af05f7efbc2:

Hey there Tor Arne, thanks for taking the time to look this patch over.
I will say in advance, that I'm working on an updated patch - It should be much
smaller and elegant, it won't have that QPainterVideoSurface dependency that
we've added, and it will keep platform specific optimisations in QtMultimedia
instead of Webkit.

> http://chaos.troll.no/~tavestbo/webkit/mediaelement/ seems to work fine,
> although sometimes the video view does not seem to be initialized (no resize,
> and no video blitting, only sound).

Connection is timing out. I'll try it again later.

> http://jilion.com/sublime/video does not work, no video or sound out of the
> box, but after clicking around the seek bar i managed to get sound and
> play/pause working, but no video.

Doesn't work for me either. I'll investigate.

> http://www.youtube.com/watch?v=H6UsFe6X3cc (after visiting youtube.com/html5
> and joining the beta), does not seem to load.

I've spent quite some time trying to get youtube/html5 to work. I am yet to
have success, and I am extremely suspicious that youtube is serving only to
specific user agents.

> http://vimeo.com/8736190 (after clicking "Switch to HTML5 player"), does not
> seem to load. Stdout:
> Building Pixel Buffer visual context 
> Could not create visual context (PixelBuffer) 
> QT7MovieRenderer: failed to create visual context 
> If i switch HD to off loading and playback with sound but no video seems to
> work.

Seems like you may have stumbled over an issue without our QuickTime backend.
I'll try and investigate. Vimeo has been a difficult one to test, as the flash
plugin I have on my workstation has a propensity for segfaults when browsing

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