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How can I fix Problems with interlaced video jerking/flicking when playedback on DVD players? (Mixing own DVD from raw footage)

How can I fix Problems with interlaced video jerking/flicking when playedback on DVD players? (Mixing own DVD from raw footage)

I'm trying to make a DVD and the final DVD jerks when played on standalone DVD players. It seems to play fine on PCs.

Asked by: Guest | Views: 86
Total answers/comments: 1
Guest [Entry]

"I came back to this after a break and hit upon the solution. Thought I'd post it hear in case anyone else has similar troubles.

The solution was to pre-render all the video @ 50fps with a fields to frames effect set to top fields first. (Pre render using the most lossless codec possible, ideally RAW if you have the disk space). This pre-render extracts each of the interlaced fields to a separate frame (hence the 50fps)

Once you've done the prerender, create a new project with normal PAL settings (25fps interlaced bottom first) Then reimport the pre render back into Cinelerra (check that it detects the 50fps correctly). Now do your final render with a frames to fields effect set to bottom first. This takes the two separate frames from the pre-render and re-combines them into 1 interlaced field. This should now be correctly interlaced for DVD playback.

The thing to remember when doing this is: capture to match your source and encode to match your format. The sony miniDVDs I was capturing from were top first interlaced. I neglected to take this into account when doing my editing, so rendering straight to bottom first interlaced screwed everything up.

There's a good description of frames to fields here. Check out the bit underneath it about processing interlaced footage without deinterlacing it."