[gst-devel] High CPU usage in ffmpegcolorspace

[Tim Müller]

> > Is it normal that this pipeline :
> > gst-launch-0.10 videotestsrc ! "video/x-raw-yuv, format=(fourcc)YUY2,
> > width=720, height=576, framerate=(fraction)25/1" ! ffmpegcolorspace !
> > video/x-raw-rgb, bpp=32, depth=24 ! fakesink sync=1
> > uses 50% of the CPU on a Pentium4 2.80GHz, 2 Go RAM ?
> > 
> > Please someone can confirm that and say us your CPU ?
> 
> 24% according to top on an Intel(R) Core(TM)2 Duo CPU T7100 @ 1.80GHz.
> Which would equate to filling up half a Core. Yes, ffmpegcolorspace is
> slow, patches welcome.

FWIW, videotestsrc seems to be responsible for about half the cpu cycles
burnt in this case (also see [1]). 

 Cheers
  -Tim

[1] http://bugzilla.gnome.org/show_bug.cgi?id=500152