Converting final project from 23.976 to 29.976 fps

[Chaobunny12]

What's the best way to make the conversion from 23.976 to 29.976 fps without throwing off the timing in an AMV? The project I'm converting has very precise timing with fast-paced music, and I found that straight converting it with Format Factory didn't achieve the desired results--it was only off by an infinitesimal amount, but enough to make the timing look bad. I know I can use Zarx264gui for this, but I haven't done it in a long time. Any script recommendations to minimize timing offset? And I know it's best not to change the frame rate at all , but I'm submitting to a convention so my format has to conform to their standards.

[mirkosp]

If they allow interlaced entries, then you could apply a soft telecine to your encode. In the command line tab, add in the Custom x264 commands:

Code: Select all

--pic-struct --pulldown 32

Otherwise you don't have much of a choice. Your best option is assuming your footage as 29.97 and re-editing your video at 29.97 for the smoothest output.
Sure you can use changefps or convertfps on your finished video, but one's gonna add duplicate frames that will hit on smoothness and could possibly be detrimental to sync, the other's going to introduce a lot of blending which hardly is a good idea.

[Zarxrax]

Or he could do a hard telecine with avisynth.

[mirkosp]

That's if they do allow interlaced entries anyway, and he'd still have to flag the content as interlaced while encoding, so at that point he can just soft telecine anyway.

[Mister Hatt]

Hard telecine coded progressive, dirty but it works. I'd recommend the first option of soft pulldown in x264 though.