I installed gstreamer0.10-plugins-* on my stretch system according to
info on this page:
Video support on Libreoffice Impress did still not work after that.
A forum hint made me try to install:
alternative: gstreamer1.0-alsa for alsa-Systems.
Afterwards, multimedia support was granted.
So - can it be the case that the info at the page is outdated?
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