Hola S-PJJ
Yo he instalado Pitivi y no me da este error. He probado a importar un vídeo
y parece que lo admite para editar...
He visto lo que tengo instalado de gstreamer en Synaptic y son bastantes
paquetes. A ver cuál te falta:
libreoffice-avmedia-backend-g
gstreamer1.0-libav
gstreamer1.0-vaapi
gstreamer1.0-nice
gstreamer0.10-alsa
gstreamer1.0alsa
gstreamer0.10-tools
gstreamer1.0-clutter-3.0
gstreamer1.0fluendo-mp3
gstreamer1.0-x
gstreamer0.10-plugins-base-apps
gstreamer0.10-plugins-base
gstreamer1.0-plugins-base
gnome-video-effects
girl1.2-gstreamer-1.0
libstreamer0.10-0
gstreamer0.10-pulseaudio
libges-1.0-0
libstreamer-plugins-base1.0-0
python3-gst-1.0
girl1.2-gst-plugins-base-1.0
libstreamer-plugins-good1.0-0
gstreamer1.0-plugins-good
libstreamer-plugin-base0.10-0
libgstreamer-plugins-bad1.0-0
trisquel-codecs
gstreamer1.0-plugins-bad-faad
