Ubuntu 11.10 (amd64); gstreamer0.10-ffmpeg 0.10.12; libavcodec53 OR libavcodec-extra-53 (both yield same results for 10bit).
I expect to be able to see 10bit video, since it is supported since libav 0.7 and ffmpeg.
instead, the following error comes up:
Could not find GStreamer caps mapping for FFmpeg codec 'h264', and you are using an external libavcodec. This is most likely due to a packaging problem and/or libavcodec having been upgraded to a version that is not compatible with this version of gstreamer-ffmpeg. Make sure your gstreamer-ffmpeg and libavcodec packages come from the same source/repository.
DistroRelease: Ubuntu 11.10
Package: libgstreamer0.10-0 0.10.35-1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
Date: Thu Oct 20 14:49:39 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
PATH=(custom, no user)
UpgradeStatus: No upgrade log present (probably fresh install)