Davinci Resolve Frame rate woes

[spamgnome]

I accidentally ended up with a video shot in 29.97 fps in a 25 fps timeline. No idea how that happened, but it did. Googling an answer, the general advice seems to be to create a new timeline, deselect "Use Project Settings," and set the new timeline's frame rate to 29.97, and then Copy/Paste the clips into the new timeline. I tried this, but the frame rate is still set to 25 fps when I look at the settings. Any advice?

 

[Lens]

Just create a new project and before you select your media to import, set your timeline preferences including the frame rate of 29.97

 

[Kilrah]

when I look at the settings

At which settings?
That procedure should be correct

 

[spamgnome]

At which settings?
That procedure should be correct

And yet...I was referring to the settings of the newly created timeline..when I click on the 'i' (info) icon on the timeline thumbnail

 

[spamgnome]

Just create a new project and before you select your media to import, set your timeline preferences including the frame rate of 29.97

Going forward, absolutely. But the project I have has many hours of work in it, so don't want to start from scratch

 

[Dave Maine]

If your timeline is set to 25 fps you will be fine. By default Resolve will treat any clip as a 25 fps clip. The 29.97 clip will play as if it was a 25 fps clip by dropping the unneeded frames. Using frame blending or optical flow will make the result smoother.

 

[spamgnome]

If your timeline is set to 25 fps you will be fine. By default Resolve will treat any clip as a 25 fps clip. The 29.97 clip will play as if it was a 25 fps clip by dropping the unneeded frames. Using frame blending or optical flow will make the result smoother.

Well, i ended up with a lot of jitter, so that's what I'm trying to remedy

 

[Dave Maine]

The the basic problem is that the 25 fps frame rate is not an integer ratio to the 29.97 fps of the problematic shot. The only solutions are to select either frame blending or Optical flow from the "Retime Process" settings in the inspector. Optical Flow is probably best, but takes far longer that the "Frame Blend" choice. Test and choose to taste.

 

[dajomu]

The the basic problem is that the 25 fps frame rate is not an integer ratio to the 29.97 fps of the problematic shot. The only solutions are to select either frame blending or Optical flow from the "Retime Process" settings in the inspector.

Yes, that's the basic problem, but there is another "solution", which is to have Resolve interpret the 29.97 fps clip(s) as if they were 25 fps clips. If you do that then each frame of the 29.97 fps source clip will play for 1/25th of a second in the 25fps timeline. This will cause the 29.97 fps clip to play 20% slower. For example 5 seconds of real time footage in the 29.97 clip will take 6 seconds to play back on the 25 fps timeline (a 5 second clip shot at 29.97 fps will contain 150 frames; if you play those 150 frames on a 25 fps timeline, they will last for 6 seconds) . But there won't be any jitter or artifacts introduced by frame blending or Optical Flow processing. I have done this sort of thing in Premiere with good effect, at least on drone footage, as it often just makes the footage look smoother. I don't use Resolve so can't tell you the steps for doing this in that program. But in Premiere you would select the 29.97 fps clip on the 25ps timeline and, from the Clip menu, choose Modify > Interpret Footage. This brings up the Modify Clip dialog on the Interpret Footage tab, where there are two options for Frame Rate: a. Use Frame Rate from File (29.97 in your case), and b. Assume this frame rate: [ ]. You'd pick option b and type in 25. Of course this is only an option if you don't need the original footage to play back in real time. Good luck!

 

[RUFFSTUFF]

Do this: Set your PROJECT SETTINGS to the desired frame rate. Import the video clips, then while on the CUT or EDIT page select all the clips, right click and select CLIP ATTRIBUTES, Change the VIDEO FRAME RATE to the frame rate chosen for the project.