Thanks for the feedback.
It seems this error is caused by a recent change to libgstreamer-plugins-base1.0-0 (see changelog: http://metadata.ftp-master.debian.org/changelogs//main/g/gst-plugins-base1.0/gst-plugins-base1.0_1.2.4-1~bpo70+1_changelog). Specifically, libgstreamer-plugins-base depends on liborc-0.4-0 (>= 1:0.4.18), but the wheezy-backports version is 1:0.4.16-2.
Tom Thomas reported this bug on the mailing list on 31 May.
On 06/01/2014 07:54 PM, Domenico Cufalo wrote: