Gtk4paintablesink

Application Development
1

Hi,
I would like to get a simple pipeline working in gst-launch before integrating it into
a gt4 application. Docs for gtk4paintablesink state: “… The sink will provides a simple test window when launched via gst-launch-1.0 or gst-play-1.0…”

Using following command:
gst-launch-1.0 videotestsrc ! gtk4paintablesink
this starts, displays the time counter, but no visible output window.

Anything I might have misunderstood ?
In case it helps, running on fedora 39, with gstreamer1-plugin-gtk4-0.11.3-1.fc39.x86_64

Thanks for any help
Hans

2

0.11.3 is an old version that did not yet provide a test window for debugging purposes. 0.12.1 is the first version that has this feature, and Fedora 40 is shipping a new enough version (0.12.5 right now).

See the changelog: https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/blob/main/CHANGELOG.md#0121-2024-02-13

3

ah, ok, great, thanks for the answer - so I will upgrade to F40, then test again.

Best Regards
Hans

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