[mythtv] Transcode interlace/frame issues

[David Griffith]

(bumped from the -users list)
Hi,
    I seem to be having trouble with transcoding from mpeg-2 DVB-T 
streams to mpeg-4  - the resulting file appears to be interlaced. This 
effect is only when watching the transcoded files - the mpeg2 files are 
fine, any mpeg4 files I record with my analog capture card are fine, 
just the transcoded ones. They also have the same effect when watching 
on my windows computer. Upon closer inspection last night, it might not 
be interlacing but rather a frame order issue - rapid panning movements 
give a rather chunky comb effect - not the normal single-line interlace 
effect, they look to be at least three or four scanlines high depending 
on the amount of movement.

This is with one of the recent builds as I'm also tracking the DVB 
issues as they progress.
Has anyone else seen this, or am I just lucky?

Dave