[Bug 629244] [opencv] Add motion detection element

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=629244
  GStreamer | gst-plugins-bad | git

--- Comment #121 from Roman Gaufman <hackeron at gmail.com> 2011-07-15 12:26:09 UTC ---
Robert, 

Try to download
http://gstreamer.freedesktop.org/src/gst-plugins-bad/gst-plugins-bad-0.10.22.tar.bz2
and apply your patch to it - you will see it doesn't apply :(

I basically went through your patch, made the minimum changes required manually
(for instance why are you re-arranging
docs/plugins/gst-plugins-bad-plugins.hierarchy?) - maybe after you do autogen
and the rest, that moves some stuff around? - not sure.

Just using your patch with an MPEG4 stream from a Panasonic IP camera, it seems
to falsely detect motion everywhere once in a while when the image goes blocky
for a frame or two. Can you add a feature "minimum_motion_frames" that will let
you set the minimum consecutive frames of motion before a motion event is
triggered? -- this is also useful for when a dual lens or dual sensor camera
switches from day to night time mode.

Roman

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