Totem 3.6 can't read video because of codec error

since the update of gnome to 3.6 and totem to 3.6.2 I can't watch any video with totem. It plays the sound but no video is showing up.
A dialog pops-up about a codec error all the time like:
The playback of this movie requires a H.264 decoder plugin which is not installed
or
The playback of this movie requires a MPEG decoder plugin which is not installed
and this happens for every video type.
Last edited by solstice (2013-04-08 15:07:17)

I'm no expert and maybe you already did this, but try installing the optional dependency gst-libav

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