CPU Usage excessive. TSDemux->MPEG2->resize->mpeg4->tsmux->send

[Andreas Tunek]

On May 4, 2012 5:24 PM, "Nicolas Dufresne" <nicolas.dufresne at collabora.co.uk>
wrote:
>
> Le vendredi 04 mai 2012 à 14:10 +0100, Richard a écrit :
> > Hi All,
> Hi,
> >
> > I am running a DVB->Transcode->MPEG4->stream solution and I am getting
> > really bad CPU usage.
> >
> >  3659 root      20   0  386m  37m 9220 S  134  1.4   0:27.47 DVBStream
> > According to top, its using 134% !... when no transcode is taking
> > place (DVB->IP SEND) top reports 5% CPU usage.
>
> From my observation, this is the mpegvideoparse element that is using
> too much CPU for what it is doing. You can help us by confirming this
> observation. I came to that conclusion by running oprofile over my
> pipeline. The symbole that was using all the CPU was
> scan_for_start_code() within the mpegvideo parser.
>
> Let me know if that is the same issue, that would greatly help. Please
> report any useful information on the bug report,
> https://bugzilla.gnome.org/show_bug.cgi?id=672701
>
> cheers,
> Nicolas
>
>

Is it deinterlacing? That takes quite a bit of cpu.....

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