Interlaced .mp4, can't deinterlace.

[nick101181]

Hello All,

Been a while since I've done any video encoding so I'm getting a little rusty as I'm getting older. I have a few videos that are mp4 and are interlaced. Now when I say interlaced I mean thick interlacing lines instead of the normal thin banding you see. It's annoying enough that when someone moves they got wobbly outlines around their body. I wouldn't say it happens every other frame but more like every 5th or 6th frame. The video reports as 30 fps. All video info progs say the video is progressive but it's not.

sample image:



* let's forgot the subject of the source material for a moment LoL*

I've tried a few filters in vdub but every deinterlace or bob filter causes the video to output a grey screen with swirls of colors, kinda like a corrupt or messed up codec from the old days. I've tried the decomb, deinterlace, and telecine filters in handbrake individually and it still comes out like this. Even using the deinterlacing filters in videolan still do not correct the interlacing. I've never seen a video that refused to respond to the deinterlacing filters in videolan but this is one of them. Any idea what caused this? I didn't record and encode the video originally so I'm not sure what options were used. These were ripped from a dvd, that much I know. I am playing back on a 720p hdtv via my pc through hdmi.

Any ideas on how to get rid of this interlacing? I'm tempted to use tmpgenc and conver it back to a dvd to see if that fixes it.

Thanks

[manono]

All video info progs say the video is progressive but it's not.

It is. It was resized (poorly) while still interlaced, encoded as progressive, and completely ruined. If you put up a sample so we can have a look, we might be able to determine if removing the 'every 5th or 6th frame' will help.

I've tried the decomb, deinterlace, and telecine filters in handbrake individually and it still comes out like this.

Deinterlacing it won't help at all as it's no longer interlaced. The original interlaced structure has been destroyed.

I'm tempted to use tmpgenc and conver it back to a dvd to see if that fixes it.

It won't.

[nick101181]

I'm going to try to get a sample. Problem is even a tiny selection in vdub comes out at 532mb, not sure why as the source file is not that big. I'm gonna work on getting a sample now.

[manono]

You haven't said in what format the video is. Maybe try AviDemux to cut a small piece without reencoding. I suspect what you're doing in VDub is cutting it and reencoding it uncompressed (no codec), thus the huge file size. If it's just a standard XviD or DivX AVI, then VDub can do it if you choose Video->Direct Stream Copy.

[nick101181]

It's an mp4. Installing AviDemux now.

[nick101181]

Thanks for the AviDemux tip. Got a small sized sample :

[manono]

Thanks for the sample. I'd say forget about it and try to track down the DVD somewhere. Maybe someone else knows better if something like this can be fixed.

[nick101181]

Thanks manono.

I think it was goofed during production, or it could be the original person who ripped it had no clue about working with video. It's sorta watchable but damn annoying to where I can only take it for a few mins.