1080p videotestsrc maxes out CPU

[Stefan Sauer]

On 04/11/2012 10:45 AM, gtissington wrote:
> Hi,
>
> Just a question about how CPU usage, multi-threading, etc.
>
> I use this pipeline:
>
>     gst-launch videotestsrc do-timestamp="true" ! 
>                capsfilter caps="video/x-raw-yuv,width=1280,height=720" ! 
>                timeoverlay ! 
>                autovideosink
>
> my core i5 cpu shows 18% utilization ( that is about 80% or so of one core)
>
> then I try this
>
>     gst-launch videotestsrc do-timestamp="true" ! 
>                capsfilter caps="video/x-raw-yuv,width=1920,height=1080" ! 
>                timeoverlay ! 
>                autovideosink
>
> my cpu shows 25% utilization  (100% of 1 core).  But Gstreamer warns that
> "There may be a timestamping problem, or this computer is too slow." and the
> test pattern appears to be at about 1 frame per 2 seconds.
>
>
> Is there a way to get Gstreamer to use the other cores?

Add a queue infront of timeoverlay and it will use another thread.

> Is there any way to get this work optimized for the GPU?
Write variants of all the above functions to use your gpu, or how do you
think would your GPU magically execute code compiled for x86?

Stefan
>
> Thanks,
>
> Garth 
>
>
>
>
>
>
>
> --
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