[Bug 690646] Cursor offset with ximagesrc and xid

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=690646
  GStreamer | gst-plugins-good | 1.0.5

Antonio Ospite <ao2> changed:

           What    |Removed                     |Added
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                 CC|                            |ao2 at ao2.it

--- Comment #20 from Antonio Ospite <ao2 at ao2.it> 2014-09-04 16:40:54 UTC ---
Hi, I confirm the issue, I started looking at the ximagesrc code and it looks
like the window geometry is not fully taken into account, in particular the
window position seems to be ignored.

If I don't set the xid property and set startx,starty and endx,endy manually
starting from the info from xwininfo the pointer is shown correctly.

Given this data:

xwininfo: Window id: 0x380000b "xeyes"

  Absolute upper-left X:  1032
  Absolute upper-left Y:  774
  ...
  Width: 140
  Height: 100
  ...

The following command line works fine with either use-damage set to true or
false:

gst-launch-1.0 ximagesrc startx=1032 starty=774 endx=$((1032 + 140 - 1))
endy=$((774 + 100 - 1)) use-damage=true ! videoconvert ! autovideosink

I am not sure if I can find the time to come up with a fix myself, I still have
a lot to learn about X.

Ciao,
   Antonio

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