Frame rate for YouTube video

xberk wrote on 2/9/2021, 5:08 PM

I'm working on some old 16mm footage. I know it was shot at 16fps. Using my RetroScan I scanned it and then exported as Image Sequence 1080 16x9 .. I opened this on the VP18 timeline at 16fps with no problem .. What's recommended from here? I'm thinking using an MXF intermediate for editing. What frame rate do I render the MXF? .. Then from the MXF I'd render for YouTube. What frame rate for that? The idea is to maintain the correction motion as it would be if projected on a 16mm projector at 16fps.

Paul B .. PCI Express Video Card: EVGA VCX 10G-P5-3885-KL GeForce RTX 3080 XC3 ULTRA ,,  Intel Core i9-11900K Desktop Processor ,,  MSI Z590-A PRO Desktop Motherboard LGA-1200 ,, 64GB (2X32GB) XPG GAMMIX D45 DDR4 3200MHz 288-Pin SDRAM PC4-25600 Memory .. Seasonic Power Supply SSR-1000FX Focus Plus 1000W ,, Arctic Liquid Freezer II – 360MM .. Fractal Design case ,, Samsung Solid State Drive MZ-V8P1T0B/AM 980 PRO 1TB PCI Express 4 NVMe M.2 ,, Wundiws 10 .. Vegas Pro 19 Edit

Comments

lenard wrote on 2/10/2021, 1:18 AM

You could just stay at 16fps project, intermediate and encode. Youtube will honour your 16fps encode and playback at that rate. One thing you might want to try also is frame doubling to 32fps using AI frame interpolation. The free one I use is called FlowFrames. I don't know what best technique is for losing those 2 extra video frames per second. You could encode at 32fps and let Youtube handle the conversion to 30fps.

But you're looking for best practice, and I bet someone knows the answer

joelsonforte.br wrote on 2/10/2021, 6:14 AM

If you want to render by changing the frame rate I recommend using Render Plus from HOS of the @wwaag . It does excellent frame interpolation using optical flow. This avoids repeated frames as is the case with traditional Vegas interpolation.

I made a short video showing how to do this in HOS Render Plus.

 

 

lenard wrote on 2/10/2021, 9:13 AM

@joelsonforte.br You recommend a dumb optical flow interpolator that costs money, above my free artificial intelligence optical flow interpolator. Although your method may be reasonable for slow motion it's not good enough for creating interframes of historical footage for real time playback.

Incase you don't know, AI interpolation uses AI modeling, based on footage of , for example, people walking, people running, playing tennis, most things humans and many other things do, so it knows the range of movement that that might be possible in the circumstances. It's should be much more accurate at interframes then what you recommend.

 

J-Toresen wrote on 2/10/2021, 9:29 AM

lenard

Please give us a link to the FlowFrames AI program you are using!

Jøran Toresen

lenard wrote on 2/10/2021, 10:47 AM

You can download it here, if you have any problems, look at the patreon versions changelog info to see if it could help. Free version is a few versions behind most recent release

https://nmkd.itch.io/flowframes

xberk wrote on 2/10/2021, 11:59 AM

Thanks guys .. as usual .. very helpful .. I never knew stuff like FlowFrames or Render Plus existed .. thanks.

Paul B .. PCI Express Video Card: EVGA VCX 10G-P5-3885-KL GeForce RTX 3080 XC3 ULTRA ,,  Intel Core i9-11900K Desktop Processor ,,  MSI Z590-A PRO Desktop Motherboard LGA-1200 ,, 64GB (2X32GB) XPG GAMMIX D45 DDR4 3200MHz 288-Pin SDRAM PC4-25600 Memory .. Seasonic Power Supply SSR-1000FX Focus Plus 1000W ,, Arctic Liquid Freezer II – 360MM .. Fractal Design case ,, Samsung Solid State Drive MZ-V8P1T0B/AM 980 PRO 1TB PCI Express 4 NVMe M.2 ,, Wundiws 10 .. Vegas Pro 19 Edit

lenard wrote on 2/10/2021, 5:09 PM

This is an example with the Optical Flow that Resolve does:- dumb optical flow vs AI optical flow. Because the AI knows what a human is and what a car is, it can separate them from the background when interpolating new frames. They all make mistakes though