mpeg2 creates blur when converting

[jjjamiem]

This is a bit of a reverse for the forum, hope it's still on par as I'm a newbie and confused with my mpeg2 conversion

I get a good amount of mpeg2s sent to me. Generally I make wmvs or movs out of them.

However, there are some mpeg2s that are sent to me that create a sickening blur effect when converted. It's similar to the "acid effect" you might see on tv or in a movie, where someone moves and the image of them is still there for a split second so it's like they're in multiple places. Makes you nauseous if you watch it for a while.

Anyway, I tried working with one person to figure out what could be different about these mpeg2s and I couldn't come up with anything. All programs were the same, so I figured it was a codec, I had him install a different one, but still I'm getting the same effect from his clips and some others.

Has anyone ever run into such a thing? Is it the codec? Is it some other setting? I'm a bit lost for the moment and need to convert some stuff.

[Shadowmistress]

Are you talking about interlacing? Open your mpegs and examine them frame by frame to see what's going on. If you start seeing frames with horizontal lines, that's interlacing. There are tons of articles around here to help you sort that out.

[jimmalenko]

That "ghosting" has generally been caused by incorrect field order on an interlaced source when I've experienced it previously.

[jjjamiem]

That "ghosting" has generally been caused by incorrect field order on an interlaced source when I've experienced it previously.

Interesting. I'm used to lines, as Shadowmistress mentioned, when it comes to interlacing problems. I'll see if correcting the field order helps, thanks for the suggestion.

[jjjamiem]

Just wanted to update and say that reordering the field order fixed my problem. I have an xvid clip with the same problem, hope it works for that too (if it's possible to do that to an xvid clip).

[jimmalenko]

Cool


Glad to hear you sorted it out.

The only time field order comes into the equation is with interlaced video, and it's possible to create XVID as interlaced, so by the same token, it's possible that changing the field order may assist in that case as well.