Playing a video in a GTK window example

[Nicolas Dufresne]

Le mercredi 12 juin 2019 à 09:42 -0400, pisymbol . a écrit :
> 
> 
> On Wed, Jun 12, 2019 at 9:20 AM pisymbol . <pisymbol at gmail.com> wrote:
> > 
> > On Tue, Jun 11, 2019 at 11:19 PM Guillaume Desmottes <guillaume.desmottes at collabora.com> wrote:
> > > Hi there,
> > > The gtksink and gtkglsink in https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/tree/master/tests/examples/gtk
> > > should be helpful to you.
> > > 
> > 
> > Great! I know them. Now an example that uses them? :-)
> > 
> > 
> 
> Full disclosure: I have now gotten it to work from a tip by Mattias. My point though is that in order to link videoconvert to gtksink you need to expose videoconverts src as a ghost pad which is no where to be found in the documentation. 
> 
> What worked for me (the missing link - literally):
> 
> ghostpad = Gst.Ghostpad.new("sink", videoconveter_element.get_static_pad('src'))
> bin.add_pad(ghotspad)
> 
> And then I was able to link in gtksink and pack it using gtksink.props.widget. This stuff needs to be documented since the overwhelming majorities that turn up on Google simply do not work with the current API.

Ghosting is not specific to using gtksink. If you use custom bins with
pads, you have to learn how to ghost the pads.

> 
> -aps
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