What can I do about combed frames? (divx 4)

[Matthew]

I have a divx 4 avi with an occasional combed (in fact "blended" I think) frame, and this results in annoying glitches during playback.

I know this can be solved by re-encoding the avi and using say fielddeinterlace(full=false) but I would rather not re-encode the full avi.

I can generate a list of combed frames using decomb+DebugView, however I can't just re-encode certain frames can I?

So what am I able to do with the avi I have? Is a full re-encode really the only option?

Thanks :)

[DigitAl56K]

Sounds like someone forgot to ivtc when the original encoding was made.

Is your system fast enough to do a realtime ivtc through AVS while you playback?

[Matthew]

Thanks, de-interlacing on the fly is an interesting idea...but I'm thinking about the future, when DVD players play mpeg-4 as standard (hopefully). I'd like the file to play back without having to convert if possible :/

[DigitAl56K]

Sounds like you need to re-encode the whole video then...

[jggimi]

If you use ffdshow for playback, you can set it to deinterlace on the fly.

[DigitAl56K]

It sounds like he needs to do a decimate though...

[Matthew]

Thanks for the replies.

I'm rather clueless in regards to this area, but in one of the avis (there are a number of them), there are only 91 combed frames across the 44 mins, after a bunch at the end (logo) are excluded.

They don't conform to any obvious pattern and not all of them (although I think over half) are blends. So I don't think decimate is necessary under the circumstances - the results seem fine with a deinterlaced mpeg2. Framerate is 23.976 btw.

Because I want to watch on a standalone dvd player, I'm converting to dvd-video (RW) atm. I suppose I'll just burn the avis as is and if required do the same in future even with a standalone that supports mpeg-4. Who knows, maybe they will be like minipcs that will allow deinterlacing =)