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I'm trying to use ksvideosrc to test a simple video playing program using gstreamer and python. I can use the command line in Windows to set up a simple pipeline to play my webcam

gst-launch-1.0 ksvideosrc ! autovideosink

This works just fine. My python program can connect to a videotestsrc element and display that in my GUI window, but when I try to do the same thing with ksvideosrc, I still get the videotestsrc video.

I tried the program listed in

List device-names available for video capture from ksvideosrc in gstreamer 1.0

The program runs, but it exits with device_index=1, so it doesn't find any.

Why does Gst.ElementFactory.make('ksvideosrc') give me a videotestsrc element?

Thanks for any help.

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Tim Williams
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  • I should mention that I'm using Python3.4. – Tim Williams Jul 14 '15 at 02:06
  • I tried boiling my program down to the basics. I connected to ksvideosrc and piped it to autovideosink. When I set the pipeline to PLAYING, I got a window with my webcam video, so it must be something with me trying to put the video into a Gtk.Layout. This works with videotestsrc, so why not ksvideosrc? – Tim Williams Jul 14 '15 at 02:40

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