[Interest] Chances of usable qtmultimedia on imx6?

[Auslands-KV]

Hi Christoph

That looks GREAT!!! Need to test that immediately. :-)

You know by chance, if 5.3 is available on Yocto?

Regards

Michael


Am 16.04.2014 09:39, schrieb Christoph Kurz:
> > Hi
> >
> >I am looking for a nice small device used mainly for a specialized
> >digital signage solution. As software framework I would like to use Qt5,
> >as I really love Qt5 :-)
> >
> >I had a recent look at the imx6 solutions available, and there are many
> >devices out on the market at attractive price points. The power of the
> >CPU and the GPU should be totally sufficient for the use case. So I
> >tested Qt5 on it. The results are, however, pretty bad.
> >
> >While GL effects and shaders work nicely in Qt5.2.1, qtmultimedia is
> >extremely inefficient. Here are some examples comparing gstreamer and
> Qt5:
> >
> >1. Playback of HD video (mpeg4):
> >Gstreamer: < 10% CPU usage, perfect picture
> >Qt5: 100% CPU usage, some frames are dropped, somewhat usable
> >
> >2. Playback of full HD (FHD) video (h264):
> >Gstreamer: < 20% CPU usage, perfect picture
> >Qt5: 100% CPU usage, 90% of frames are dropped, unusable
> >
> >3. Playback of rtsp webcam stream (640x480, h264):
> >Gstreamer: < 5% CPU usage, nearly perfect pictures
> >Qt5: 5-10% CPU usage (!), but >90% of frames are dropped, unusable
> >
> >Gstreamer shows that the imx6 is perfectly capable of playing these
> >streams. Also, XBMC runs perfectly on it. So. it definitely seems to be
> >a matter of Qt integration with the imx6 platform that is severely
> >lacking.
> >
> >I am just wondering if there is a chance that Qtmultimedia will be
> >better integrated into the imx6 platform in the (near) future, or if I
> >should better look for a different platform (e.g. bay trail?) ?
> >
> >Thanks for any comments
> >
> >Michael
>  
> Have you tried Qt5.3? It should work there:
> https://codereview.qt-project.org/#change,76764

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