[meta-freescale] imx6: webkit html5 video with hardware acceleration

[Carlos Rafael Giani]

On 2014-09-23 21:23, Richard Cochran wrote:
> On Tue, Sep 23, 2014 at 09:15:46PM +0200, Carlos Rafael Giani wrote:
>> Oh that is probably because it is using GStreamer 0.10. The 0.10
>> Freescale plugins for the VPU are known to not work with WebKit. See
>> https://bugzilla.yoctoproject.org/show_bug.cgi?id=4155 and
>> https://bugzilla.yoctoproject.org/show_bug.cgi?id=4156.
> Yes, I saw those already, thanks. They give zero information as to why
> the VPU cannot work with webkit. I should think that it could work, if
> it were only implemented!
>
>> Check if it
>> was built with its GStreamer 0.10 or 1.0 backend.
> It uses 0.10.
>
>> With 1.0 , you can
>> use gstreamer-imx for decoding.
> Well, you *can* use 1.0, but does it actually work?
>
> If so, can you please share your yocto configuration that builds
> midori/webkit/gstreamer to work with hardware acceleration?
>
> Thanks,
> Richard

Well, I saw it when I used qtwebkit. It was rather strange, though. When 
the internal WebKit copy of qtwebkit detected GStreamer 1.0 , it 
switched to 1.0 as the backend. Otherwise, is used 0.10. This is strange 
because Qt is (or was? I am not up to date) firmly 0.10 based, at least 
QtMultimedia, and it is generally not possible to use both 0.10 and 1.0 
in the same process. I guess it worked because WebKit was built in the 
multi-process mode.

When I get the time, I'll try again, and see if gstreamer-imx is being 
used for decoding. With any luck, I'll be able to see any frames. You 
can try this: in Yocto, first build gstreamer 1.0 (and 
-base/good/bad/ugly) explicitely. Meaning, call "bitbake gstreamer1.0 
gstreamer1.0-plugins-base gstreamer1.0-plugins-good 
gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav". 
*Then*, try to build WebKit. Use bitbake -c configure, so you get the 
chance to look into the configure log, to see if it is using 0.10 or 
1.0. (If you want to be sure it doesn't use 0.10, first remove 0.10 from 
your Yocto build by running "bitbake -c cleansstate gstreamer 
gst-plugins-base gst-plugins-good gst-plugins-bad gst-plugins-ugly 
gst-ffmpeg".)