I think this would be the right forum... If a file is in NTSC film @23.976 fps is there a way to convert this to a frame rate that avoids jerkiness? PAl or NTSC?
Unfortunately not really no! If the source framerate is jerky, then converting to another framerate may not exactly help very much. You can use TMPGEnc to convert if you wish but I would doubt it will help very much!
Thanks Dela. The original looks fine actually but I know that changing NTSC -film to standard NTSC framerates can cause jerkiness and flickering loss of colour. I note on other threads that a package called Canopus seems to be the one to use to avoid 23.976 to 25 or 29 fps jerkiness.
You can either use a program called Pulldown or another called PulldownGUI to add pulldown flags. That will cause the video to be read at 29.97fps interlaced by duplicating fields. It's the same process used to make NTSC DVDs from 23.976fps MPEG-2 files.
@topgazza, ah i see, well usually converting a framerate completely would cause some form of jerkiness anyways! Canopus Procoder? I have still to test Canopus Procoder 2, the former versions are pretty good, but I havent had much need for them!
Cheers guys. I'll give them all a go. Canopus I have but not tried it yet...but I will. I'll check out Pulldown as well. I can see the principle of duplicating to "fill in" so to speak. 6 frames a second is such a, relatively, small amount that stretching the vid and audio shouldn't cause too much of a "matrix" effect. Interesting, and thanks again.
lol, i once encoded 29.97 fps to 25fps without thinking using AviSynth and CCE SP, the few extra frames made a massive difference to the overall movie length! lol
First "file" converted a treat with no jerkiness or flickering of colour or sound. Impressive. That was with Canopus Procoder 2. I'll try a couple more to confirm consistency.
Procoder 2 is getting good reviews, ive gotten it myself but havent jad time to check it out, Good luck with further encodes
@Dela: I've read on Doom9 that ProCoder may be as good as CCE for low bitrate encodes (some people say better), but as I don't have a copy myself I can't really say. @topgazza: If there's no jerkiness then I'd say it's possible (maybe even likely considering it's Canopus) that ProCoder did the conversion by duplicating fields like a pulldown pattern. I'd still recommend that you try out the pulldown programs I mentioned in my first post. They have a couple of advantages over re-encoding to 29.97fps. First off, they won't change the filesize. All they do is set flags in the MPEG file that cause it to be read as 29.97fps without actually creating any additional fields. Since you're keeping the original frames, you also don't have to worry about lowering the quality when you re-encode. If you want a copy of Pulldown and a GUI to use with it, PM me and I can send them to you. _X_X_X_X_X_[small]Looks like I picked the wrong week to stop sniffing glue DVD Rebuilder Guides: http://www.afterdawn.com/guides/archive/dvd_rebuilder_tutorial.cfm http://www.afterdawn.com/guides/archive/dvd_rebuilder_tutorial_advanced.cfm[/small]
Cheers. i've just mailed you. The second NTSC-Film 23.97 converted to 25 as smooth as can be. It was DVD quality and has definately retained that quality, as far as the eye can see. Haven't checked the file size but it has fitted on a single, single layer DVD. You have to presume that some reduction in quality to enable the compress, has taken place but its impossible to spot. Its not ogre or Donkey free but its crisp and clear. looking forward to trying Pulldown
From what little I've read about ProCoder, it's not supposed to be very fast, but I haven't read anything about it in a while, so that may not be true any more. Of course, since you're used to CCE I imagine it will seem slow no matter what
