Bug 509998

Summary: The hue slider of "Color Overlay" effect doesn't change the hue
Product: [Applications] kdenlive Reporter: Vlad <backdround>
Component: Video Effects & TransitionsAssignee: Bernd <berndmj>
Status: ASSIGNED ---    
Severity: normal CC: berndmj, luzpaz
Priority: NOR    
Version First Reported In: 25.08.1   
Target Milestone: ---   
Platform: Flatpak   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Video of the problem

Description Vlad 2025-09-27 12:14:26 UTC
Created attachment 185318 [details]
Video of the problem

The hue slider of "Color Overlay" effect doesn't change the hue


STEPS TO REPRODUCE
1. Create a black color clip.
2. Apply "Color overlay" on it.
3. Move the hue slider.

OBSERVED RESULT
Nothing changed

EXPECTED RESULT
The hue of the overlay is changed

SOFTWARE/OS VERSIONS
Linux: Archlinux (6.16.5)
kdenlive: 25.08.0
and
Flatpak: 1.16.1
kdenlive: 25.08.1

I checked on an old version (23.08.5) and it works there.
Comment 1 luzpaz 2026-01-24 22:12:30 UTC
(In reply to Vlad from comment #0)
> Created attachment 185318 [details]
> Video of the problem
> 
> The hue slider of "Color Overlay" effect doesn't change the hue
> 
> 
> STEPS TO REPRODUCE
> 1. Create a black color clip.
> 2. Apply "Color overlay" on it.
> 3. Move the hue slider.
> 
> OBSERVED RESULT
> Nothing changed

Can you still reproduce on 25.12.1 ?
Comment 2 Bernd 2026-01-27 18:26:42 UTC
Thanks for reporting. I can confirm the problem.

Parameter setting in avfilter.colorize is wrong. Will be fixed in 25.12.2 or 26.04