1080p videotestsrc maxes out CPU

[gtissington]

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?
Is there any way to get this work optimized for the GPU?


Thanks,

Garth 







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