[Bug 682480] clockoverlay create huge load

GStreamer (bugzilla.gnome.org) bugzilla at gnome.org
Fri Aug 24 04:38:27 PDT 2012


https://bugzilla.gnome.org/show_bug.cgi?id=682480
  GStreamer | gst-plugins-base | 0.10.x

--- Comment #3 from Levente Farkas <lfarkas at lfarkas.org> 2012-08-24 11:38:26 UTC ---
in short imho it's not normal that some overlay cause almost the same cpu load
as an mpeg4 encoding. 
we simple put the overlay into our source element. generate all characters at
class init time (with the given properties set by the element, it can be
changes to regenerate it when properties changed) and simple lookup and copy
into the frame buffer the characters during run. which cause 0%cpu (ie. not
noticeable) load during pipeline running. while the current clockoverlay cause
realy huge load.
imho the same could be used in clockoverlay too. since in the current form it's
not worth to use at all.

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