choppy output when rendering videos with different fps

mersault wrote on 8/16/2022, 8:57 AM

Hello, I am working on a travel movie, that consists of different videos/images. I have a lot of videos from my sony camera (with 25 fps) and also some videos from mobile phone (with different fps, variable and around 30 fps). Especially mobile phone videos are choppy after rendering with 25 fps. I tried using the 25 fps for the whole project, with or without resampling. I tried changing mobile videos' frame rate from variable to constant in handbrake,... I just can not get smooth video output. Not to talk about speeding up video clips - the result is non watchable. Is there a way to combine these videos in the same project without getting out choppy result?

Comments

j-v wrote on 8/16/2022, 9:14 AM

Convert the mobile phone videos to a steady framerate using a program as Handbrake before adding them to a project

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Musicvid wrote on 8/16/2022, 10:13 AM

Render the rest of the source to 25p first using Optical Flow Resampling, assuming you have a recent version of Vegas (you didn't say!). Set your project at 25p and proceed normally. Follow the Vegas Help.

For further peer support, start here:

https://www.vegascreativesoftware.info/us/forum/important-information-required-to-help-you--110457/

fr0sty wrote on 8/16/2022, 10:33 AM

You shouldn't have to render to 25p first, as long as you have optical flow resampling set in project settings, it will automatically do that for you upon rendering your project.

mersault wrote on 8/16/2022, 11:05 AM

I'm using Vegas Pro 16. I can not find optical flow resampling in project settings. I converted mobile videos to steady frame rate and then I rendered all videos with 30 fps and I got better results. Now those videos with 25 fps are slightly worse...

Musicvid wrote on 8/16/2022, 11:56 AM

No, Vegas Pro 16 does not have optical flow resampling.

3POINT wrote on 8/16/2022, 1:17 PM

Optical flow is nice (but timeconsuming) for adding frames but useless for deleting frames.

I would add the 30fps footage at 25fps projectframerate., will slow down the footage a little but it will be fluent.