Really jerky playback after conversion :(

[handsy]

Aaarrgghh ! It worked before....I have a DivX movie I'm converting to MPEG with TMPGenc. I've done it a million times before, and all's been well until I formatted my hard drive and reinstalled WinXP and all codecs.
Now, when I convert, I'm getting terrible jerkiness in my MPEG output file. I'm talking around 19-20fps !!!
What could be causing it ?
I have DivX Pro codec installed, so it should be fine.....shouldn't it ?

Any help really really appreciated

Thanks

[DiablosuX102]

probably the wrong field order in Tmpgenc, whichever one u converted to...try the other one, just a suggestion.

hope this helps, josh

[handsy]

what field order ? the one in Environmental Settings ?
Anyone else help please ?

/me confused

[MrMungus]

all's been well until I formatted my hard drive and reinstalled WinXP and all codecs.

Could it be that you're now using a different MPEG decoder?

[handsy]

I'm using DivX Pro Codec....can't remember what I was using before ! What others are there ?

[proxyx99]

Possibly MPEG2 codecs issue. Fix depends on configuration. Try installing PowerDVD, its codec may help.

[Calitas]

Hi handsy

I had that problem to, converting in TMPGEnc AVI to MPEG and getting jerky movie.

The problem whit me, was wrong field order that was "Bottom field first (field B)", instead "Top field first (field A)", changing this setting result whit me.

This setting is in the "Advanced" --> "Video source type" --> "Field order:"

See this page: http://dvd-hq.info/Compression.html

This is an extract from ther:
"Bottom (for DV) or Top (for analog)

This setting is the source of many problems, since some systems don't say what field order they use, and some pseudo-DV systems actually capture in analog mode. The field order is set by the capture hardware, not by the editing program, so you can't change it in software without re-compressing all the footage. All you can do is make sure you set this parameter right, so that TMPGEnc knows how to encode the file. If you notice your MPEG video flickers whenever there is fast movement, the most likely cause is a wrong field order setting. Note that this will only be noticeable on a video monitor or TV set; computer monitors are not interlaced, and always show odd and even lines at the same time."

In this text it's said that in a monitor computer it's not noticeable, for me it's noticeable if I see the video in the Windows Media Player, but if I see in the PowerDVD isn't.

Cumps
Calitas

[musotechy]

Not teaching anyone to suck eggs here but, have you checked the format?

Loading NTSC into a PAL template and vice versa etc etc


Thanks


muso

[handsy]

Hi guys,
Tried all these suggestions
This is sooooooo weird, jerky as hell, and no good reason for it. I've swapped codecs, changed settings, tried PAL and NTSC (even though I know the original is NTSC), and still no joy....

Anyone else ?

[musotechy]

Have you tried using virtualdub and making two seperate files (new AVI + WAV)



Thanks


muso

[dfgh11]

I've had a similar problem. It looks on the surface like a field order problem but it can't be, because I have tried both fields.The mpeg2 file in question plays like an ordinary interlaced video file in windows media player with combing etc. Yet, when burned to disc and played on a stand alone it's all flickery during motion. No one has been able to give me an answer to why this is happening to my 29.976fps video file.I have deinterlaced simply in tmpgenc (although i want to use avisynth and CCE)
and this made a video file minus the "wrong field order" looking effect, but instead, made lines on screen look terrible. It was just an awful looking result, so I scraped it. I hunted around, mainly doom9 forums and found this script for avisynth:

Telecide (order=1,chroma=true)
decimate (mode=1)
BicubicResize(720,480)
ConvertToYUY2()

I became excited when viewing the results the script created.That is until I arrived at the end credits- they were all jerky and just not acceptable. So now, I am back to square 0-I've got no leads. I hope to eventually post in the doom9 forums, but I have to wait 5 days after registering until I can post, which is not helping cure my irritation.So I continue on myquest to find a solution, hoping that when I find it, I understand why it it happens thus giving my the foresight to predict the occurrence of this phenomena in future projects.

[handsy]

Grrrrr, I thought this might be to do with the original format of the file (which is DivX 3 Low Motion), so I tried another file with Xvid encoding and still the same problem.

This is doing my head in now.....the only real change in my setup recently is hardware. I upgraded mobo to Abit NF7S v2 and Hard Drive to a SATA, but surely that wouldn't be the problem....would it ?

The files play back perfectly in their original format, but as soon as I convert to mpeg they jerk like a bucking bronco. 1 second of smooth playback, then a jerk, 1 second of sm.....etc, etc.
Very weird.

[proxyx99]

It looks like the problem lies either within TMPEG or filters. It must be screwing up on import. That may be due to filters you have installed (DivX etc.) Try Mainconcept Encoder demo and see if you get it. If you get the same reinstall filters (I would look for a different filters anyway, just to eliminate this possibility). Otherwise check TMPEG settings/installation.

[handsy]

proxyx99, you are a God

Mainconcept worked a treat...no more TMPGenc for me.

Thanks to everyone who tried to help.

[proxyx99]

No problem, btw get your filters in order anyway (try a different filter/codecs pack). Happy encoding!

[lrspinelli]

?????????????????????

I have a avi that is the same way

Very jerky throughout......... I tried converting to mpg and it converted fine but exactly as jerky as the avi it was converted from.........

As it has ac3 audio I converted the audio to wav and it made no difference in the conversion............????

Anyone have an idea..............???

THnx