[Interest] Chances of usable qtmultimedia on imx6?
Auslands-KV
auslands-kv at gmx.de
Fri Apr 18 10:39:56 CEST 2014
There is a (small) patch necessary for Qt5.3 to compile in Yocto and you
need a couple of configuration variables, but otherwiese, it is pretty
straight forward.
I will post some notes on the freescale community as soon as I have
everything fixed with Qt5.3. Currently my app does not play any videos,
and I have no idea why. Could be a bug in Qt5.3, as it worked on 5.2.1.
Concerning covertArtUr: No idea. I don't use this.
Am 18.04.2014 09:16, schrieb Ramakanthreddy Kesireddy:
>
> Hello Michael,
>
>
>
> Have you used
> http://www.yoctoproject.org/docs/current/yocto-project-qs/yocto-project-qs.html
> to download Yocto BSP source and flash
>
> Yocto image on IMX6?
>
>
>
> I got to know from your update in the mailing list that you could
> compile Qt5.3 on Yocto.
>
> Could you please post notes on the same if anything different from the
> below guide?
>
>
>
> As I need to use Qt-Multimedia, is it possible to fetch audio
> thumbnail using covertArtUrl in Qt5.3 as it had not been possible
> earlier in 5.2?
>
>
>
> Thanks and Regards,
>
> Ramakanth
>
>
>
> *From:*Auslands-KV [mailto:auslands-kv at gmx.de]
> *Sent:* Thursday, April 17, 2014 4:12 PM
> *To:* Ramakanthreddy Kesireddy
> *Subject:* Re: [Interest] Chances of usable qtmultimedia on imx6?
>
>
>
> If Qt5.1.1 is fine for you, you can simply follow this guide:
>
> http://wiki.wandboard.org/index.php/Building_Qt5_using_yocto_on_Wandboard
>
> Qt5.2.1 works the same, but using branch "master-next". And you need
> to add:
>
> PACKAGECONFIG_append_pn-qtmultimedia = " gstreamer010"
>
> to your local.conf. Otherwise no gstreamer plugins will be built.
>
> When I get Qt5.3 working I will post a short tutorial.
>
> Cheers
>
> Michael
>
> Am 17.04.2014 12:36, schrieb Ramakanthreddy Kesireddy:
>
> Yes I do need QtMultimedia but at the moment, the usecase is
> limited only to display of audio thumbnails and play/pause music
> files.
>
> But before that, I would like to flash yocto genivi complaint on
> IMX6 board as I had issues with LTIB.
>
>
>
> Could you please guide me the procedure to flash Yocto on IMX6
> Sabre Auto board?
>
>
>
> Br,
>
> Ramakanth
>
>
>
> *From:*Auslands-KV [mailto:auslands-kv at gmx.de]
> *Sent:* Thursday, April 17, 2014 4:00 PM
> *To:* Ramakanthreddy Kesireddy
> *Subject:* Re: [Interest] Chances of usable qtmultimedia on imx6?
>
>
>
> Hi
>
> Qt5.2 is pretty easy to get working, but the multimedia
> performance is unusable. I'm currently trying to get Qt5.3beta
> running.
>
> Do you need qtmultimedia?
>
> Cheers
>
> Michael
>
> Am 17.04.2014 11:24, schrieb Ramakanthreddy Kesireddy:
>
> Hi ,
>
>
>
> We are using IMX6 Sabre Auto board and tried to put yocto on
> board but invain.
>
>
>
> Could you please let me know the steps to enable yocto on
> board and then port Qt5.x on the same?
>
>
>
> Thanks and Regards,
>
> Ramakanth
>
>
>
> *From:*interest-bounces+ramakanthreddy_kesireddy=mahindrasatyam.com at qt-project.org
> <mailto:interest-bounces+ramakanthreddy_kesireddy=mahindrasatyam.com at qt-project.org>
> [mailto:interest-bounces+ramakanthreddy_kesireddy=mahindrasatyam.com at qt-project.org]
> *On Behalf Of *Christoph Kurz
> *Sent:* Thursday, April 17, 2014 2:36 PM
> *To:* Auslands-KV; interest at qt-project.org
> <mailto:interest at qt-project.org>
> *Subject:* Re: [Interest] Chances of usable qtmultimedia on imx6?
>
>
>
> Auslands-KV <auslands-kv at gmx.de
> <mailto:auslands-kv at gmx.de>> hat am 16. April 2014 um
> 10:38 geschrieben:
>
> 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
>
> Sorry, I don't use Yocto, so I don't know...
>
> But if I had to guess, then I would say the setup should be
> quite similar to 5.2.
>
>
>
> Regards,
>
> Christoph
>
>
>
>
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