Bug 505395

Summary: Check on contradictory settings
Product: [Applications] kdenlive Reporter: Uwe Dippel <udippel>
Component: Rendering & ExportAssignee: Jean-Baptiste Mardelle <jb>
Status: RESOLVED FIXED    
Severity: minor    
Priority: NOR    
Version First Reported In: 23.08.5   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: "Audio only" renders happily a Video clip

Description Uwe Dippel 2025-06-09 19:02:23 UTC
Created attachment 182127 [details]
"Audio only" renders happily a Video clip

SUMMARY
Don't let rendering processes start that have unclear outcomes set.

STEPS TO REPRODUCE
1.  Set an output format auf .ac3
2.  Activate Video in the rendering applet
3.  Start rendering

OBSERVED RESULT
The audio is being rendered as foo.ac3

EXPECTED RESULT
Before rendering starts, a consistency check asks the user if he *really* wanted to render a clip with video and audio into a pure audio file. 

ADDITIONAL INFORMATION
This is between minor and wishlist. I still set it to minor, because it is inconsistent. The user doesn't necessarily have to be aware of all any any formats, and choices, to avoid this. 
When "Video" is activated, the "Audio only" at least could be grayed out, or a pop-up asking for confirmation. 

One may as well play a number of instances on this. "Separate audio files" also goes through with a single audio file in the time line. before the user waits a few hours to find out his error, we might help him to correct his settings in the render applet, I think.
Comment 1 Jean-Baptiste Mardelle 2025-07-15 13:46:56 UTC
When selecting an audio only render profile, the "Video" checkbox and all the video settings are greyed out, so it should be clearer now