how to fix jerky video?

[arminio]

I have some MPEG2 video encoded with TMEPEGENC. It is bad conversion from PAL to NTSC with jerky playback (every few frames there is a skip) due to obviously false settings. I don't have source any more so I can't do it propperly - is there any chnce to fix video stream?

I tried with pulldown and ReStream to remove jerkiness with various settings but no luck...

Any ideas if it is possible at all?

[Paulcat]

Unless you are careful with TMPGEnc, it will duplicate frames to go from 25 to 29.97 in that conversion. I've done it, and it looks horrible. You might be stuck here unless there is a specific tool for reversing this process...

[Encoder Master]

You should use AviSynth to make such a conversion. This is almost better and you can't see a difference to the source.

[arminio]

Yes. Video is totally crappy messed with TMPEGnc - it is telecined with every 6th frame duplicated!!!
I fixed this using AviSynth with removing every 6th frame (decomb) and changing FPS to 29.97 which produced perfectly smooth NTSC video with perfect A/V sync with original audio.

But it needed reencoding (done in CCE)...

[Paulcat]

If you are converting with TMPGEnc, leave the framerate at 25 fps (If you have a PAL source) when encoding to mpeg2, and make your encoding non-interlaced. Then you can run your new file (or video portion) through Donald Graft's excellant DGPulldown program which alters the flags to make it play at 29.97. Works like a charm!

If you are making video-cd, I think you are stuck there...

[arminio]

I am not using TMPEGEnc at all. Just CCE.
Crappy NTSC Source I had was already made by TMPEGEnc from PAL. So, I needed to get either PAL or propper NTSC which I manage to do using AviSynth with decomb and CCE.