I have a couple of video filters that allow me to sample and classify pixels.
They use the mouse-button-push navigation events generated by
xvimagesink to assist in this. When I use gst-launch to launch the pipeline
everything works ok but the user interface is poor.
In an attempt to improve the UI I have an application that launches the same
pipeline and shows the video in a gtk_window. I use gst_x_overlay_set_xwindow_id to set the video in the window which works
but then the filters do not get the mouse-button-press events, however they do get the mouse-move events.
My current working hypothesis is that X is somehow stealing the
mouse-button events but my understanding of X and gtk is very limited.
Can anyone suggest a direction?
My current aim is to have the video and a small number of widgets in
a window to
provide a intuitive user interface. I have experimented with
gst_x_overlay_handle_events without any success but perhaps I'm not
doing it right.
Any Ideas?
JC
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