it works fine now, the problem was with the way the file was played.
I originally used
gst-launch-0.10 -v playbin2 uri=file://<file>

the video plays full speed with no audio when using
gst-launch-0.10 filesrc location=<file> ! <demux> ! queue ! dspvdec ! omapfbsink
as stated on meego wiki.

I will search for a way to get playback with sound.