TMPGEnc encodes jittery videos?

[christaltips]

Hi all,

When encoding any video, be them DivX, XviD or MPEG, I am always output a jittery MPEG-2 file. I use TMPGEnc Plus 2.5 and was wondering if anyone knew how to resolve the problem? Is the only way to simply choose a slower but higher quality encoding method?

Any comments/suggestions would be greatly appreciated, thanks everyone

[Cobra]

Is the framerate correct? GSpot can tell you what FPS your AVI is running at, so you can select the appropriate template in TMPGEnc.

If you're encoding a 23.976fps AVI to DVD, remember to select 3:2 pulldown.

Hope this helps,

Cobra

[andyp1]

Yes , your probably trying to convert NTSC to PAL.
Don't , if your source is NTSC , encode to NTSC . UK equiptment will happily playback NTSC with no problem.

[rycebrnr909]

hey im having the same problem w/ TMPGEnc as well, and when I encode 23.976 fps divx/xvid files w/ 3:2 pulldown i still get the same stuttering effect, any other ideas??

[FulciLives]

For those with "stutter" problems with TMPGEnc when doing PROGRESSIVE NTSC encoding I have the following suggestion:

Use the WIZARD MODE. It will properly detect if your source is 23.976fps NTSC PROGRESSIVE and it will set up TMPGEnc accordingly.

I think most people aren't using the WIZARD MODE and therefore are not correctly setting up the encode. For instance you should NOT have to check the so-called 3:2 pulldown option under the ADVANCED TAB and that probably confuses alot of people.

Also make sure you use the proper NTSC DVD template. If you are doing a VCD or SVCD then use the "normal" NTSC template ... not the so-called FILM NTSC template. That doesn't make sense but I never could get the FILM NTSC VCD/SVCD templates to work correctly. So even though you have a progressive source I wouldn't do it.

Don't mess with any of the GOP settings etc. although if you are dong VCD or SVCD I would select CLOSE GOP otherwise I wouldn't touch any of that. Forget using "odd ball" templates like KVCD etc.

As for me the only time I ever had stutter problems with TMPGEnc is when I use the FILM NTSC VCD/SVCD templates.

Never had the problem with DVD encodes.

- John "FulciLives" Coleman

[andyp1]

I never touch these settings and don't have any problems with juddering pictures.



Fulci just beat me to it then , but I can confirm that this is when using the wizard.

[FulciLives]

Actually that image you post there andyp1 is when you have imported a 29.970fps non-interlaced source.

If you load a 23.976fps progressive source then it looks a bit different:



Notice the difference here with the FRAME RATE setting and the ENCODE MODE setting.

Also I should point out that 10-bit should be used for the DC COMPONENT PRECISION setting. Also for MOTION SEARCH PRECISION I prefer to use the setting called HIGH QUALITY (SLOW) instead of the default (as seen in both my picture and andyp1's picture).

- John "FulciLives" Coleman

[andyp1]

I was sure it was 23.976fps.
This is what gspot and avicodec say about the source
I just opened it in the DVD NTSC template




They both say 23.976

[christaltips]

Ok thanks for the suggestions guys, but i live in the UK and most of the films I encode are PAL. Which settings should be best to reduce my jitter problems for that?

Thanks

[Cobra]

Is the source PAL too? Are you sure? If it's an AVI it could be anything.

Do you suffer these jitter problems when you rip a UK PAL DVD and encode? Does the jitter show up when played on your PC, or once the film is authored?

Just looking for a few clues here to highlight where the trouble might be coming in, with source or encoder.

Cobra

[andyp1]

Open your file in Gspot and tell us what your source is.
Without you supplying some basic information about your source it is difficult for people to help you.

[christaltips]

OK sorry about the lack of information guys, but here's what GSpot tells me:



It's telling me the PAL source is 25fps, so I used the TMPGEnc PAL (16:9) template, because I wanted the source to be output in widescreen. I also altered the 'source aspect ratio' here from 1:1 to 16:9, and selected the 'Video Arrange Method' as 'Full Screen (Keep Aspect Ratio)', using the Project Wizard. These are the default video settings, which I did not change:



The original XviD is plays back perfectly without jitters. However, the encoded MPEG-2 file is jittery, whether I demux the audio if the XviD comes with AC3, or whether I leave it as it is.

Thanks again everyone

PS. Did my images show up? I'm not very good at the HTML thing. :S

[FulciLives]

I don't understand why my screen shots of TMPGEnc differ from those by andyp1 so here is the GSpot info of the file I used.



This was a Xvid I created myself using a DVD rip of my NTSC DVD of JASON VS FREDDY. The DVD was PROGRESSIVE so I used DVD2AVI with the FORCE FILM option. Then I loaded the D2V into VirtualDubMod via a simple AvSynth script and saved it there was an Xvid AVI file.

- John "FulciLives" Coleman

[christaltips]

Hi again all!

I've just downloaded and encoded an NTSC movie to test whether or not I get jittery MPEG-2 files with NTSC films and strangely the encoded file was perfect, no jitters or anything. I used the NTSC film template in TMPGEnc and changed none of the settings. So how come I have that problem when encoding PAL sources? I am certain I am not encoding NTSC movies to PAL or vice versa.

Thanks all