When to use AssumeBFF and AssumeTFF?

[TeNSoR]

Hello, everybody!

Just a newbie question, If I want to encode a blended DVD which one shall I use "AssumeBFF" or "AssumeTTF", In DgIndex I could see in field order most of the time "Top", Thanks.

[jagabo]

Use whichever is correct. Apply a Bob() filter after AssumeTFF or BFF then step through the video frame by frame. If you get jerky back and forth movement you have the wrong one.

[TeNSoR]

Use whichever is correct. Apply a Bob() filter after AssumeTFF or BFF then step through the video frame by frame. If you get jerky back and forth movement you have the wrong one.

Many Thanks, friend