gstreamer and ubuntu, NULL returned from getting xcontext

[Davide Perini]

Solved it.
I was launching gstreamer as root when I have started gnome as user.

Thanks


Il 23/08/2020 01.26, Davide Perini ha scritto:
> Hi guys,
> I installed gstreamer in Ubuntu 20.04 as mentioned in the official site:
>
> |apt-get install libgstreamer1.0-0 gstreamer1.0-plugins-base 
> gstreamer1.0-plugins-good gstreamer1.0-plugins-bad 
> gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-doc 
> gstreamer1.0-tools gstreamer1.0-x gstreamer1.0-alsa gstreamer1.0-gl 
> gstreamer1.0-gtk3 gstreamer1.0-qt5 gstreamer1.0-pulseaudio|
>
>
> when I try to screen capture:
> gst-launch-1.0 ximagesrc ! videoscale ! autovideosink
>
> I get an error.
>
> ---
> root at sblantipodi-Virtual-Machine:~# gst-launch-1.0 ximagesrc ! 
> videoscale ! autovideosink
> Setting pipeline to PAUSED ...
> error: XDG_RUNTIME_DIR not set in the environment.
> ERROR: Pipeline doesn't want to pause.
> ERROR: from element /GstPipeline:pipeline0/GstXImageSrc:ximagesrc0: 
> Could not open X display for reading
> Additional debug info:
> gstximagesrc.c(158): gst_ximage_src_open_display (): 
> /GstPipeline:pipeline0/GstXImageSrc:ximagesrc0:
> NULL returned from getting xcontext
> Setting pipeline to NULL ...
> Freeing pipeline ...
> ---
>
> Can you help me please?
> Same command works well on Fedora.
>
> Thank you!
>
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> gstreamer-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

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