Render a 50fps project at 25fps

harald.albrecht harald.albrecht at
Tue Oct 24 10:37:14 UTC 2017

Yes, and no. As Evert pointed out, there's currently a bug in the timeline handling that sometimes causes issues (but not always as far as I understand, but I may be wrong here). The safest approach is as Evert suggested to render at 50fps and then use ffmpeg for post-processing to drop every second frame.
Best regards,Harald

-------- Ursprüngliche Nachricht --------Von: Cyril Duveau <linux4cyril at> Datum: 24.10.17  10:12  (GMT+01:00) An: kdenlive at Betreff: Re: Render a 50fps project at 25fps 
Hello Harald,

Thank you for your detailed response.
Just to be sure, I can do that change while all my files are loaded and
I am ready to render?
Once I have the settings at 25fps, could I go back to 50fps the same
way (HD 1080p 50 fps)?

I want to perform tests to see if it is really worth rendering at 50fps
or if 25 is enough...

Thanks & Regards,

Le lundi 23 octobre 2017 à 21:08 +0200, Harald Albrecht a écrit :
> Cyril,
> you don't mention the other project settings, so I need to guess to
> some extend; I'm assuming FullHD for the moment. In the Project >
> Project Settings... dialog, set the "Fps" drop down to 25 so you
> don't need to sift through all the many profiles. In the list, open
> the "Full HD 1080", so you see (assuming that no filter is set for
> scanning) two entries: HD 1080i 25 fps, as well as HD 1080p 25 fps.
> Select the second one (HD 1080p 25 fps), click "Ok". Done.
> Best regards,
> Harald
> Am 23.10.2017 um 12:38 schrieb Cyril Duveau:
> > Hi,
> > 
> > I would like to produce a video at 25fps from footage at 50fps.
> > The project settings are for 50fps, that's the rendering profile
> > for
> > exporting that I don't know where/how to specify the fps.
> > 
> > I found this but I can't find how to adapt it to the new system:
> >
> > Can you help?
> > 
> > Thanks,
> > Cyril
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