Bug 445675

Summary: Rendering widescreen 16:9 format to DVD always adds black bars
Product: [Applications] kdenlive Reporter: Norbert Preining <norbert>
Component: Rendering & ExportAssignee: Jean-Baptiste Mardelle <jb>
Status: REPORTED ---    
Severity: normal    
Priority: NOR    
Version First Reported In: 21.08.3   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Norbert Preining 2021-11-18 05:33:43 UTC 
SUMMARY
It is not possible to render to widescreen DVD (NTSC) without adding black bars at top bottom, despite input data is 16:9. All renderings to DVD (VOB) result in 4:3 rendered video with black bars, which, when shown on a normal modern TV, results in wrong aspect ratio.

STEPS TO REPRODUCE
1. create a project in some 16:9 format
2. render to SD/DVD

OBSERVED RESULT
output contains black bars at top bottom

EXPECTED RESULT
correctly encoded video that shows full screen (filling the full screen) of a 16:9 TV

SOFTWARE/OS VERSIONS
Operating System: Debian GNU/Linux
KDE Plasma Version: 5.23.3
KDE Frameworks Version: 5.88.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION

Changing the Project format to NTSC widescreen does not help, rendering to DVD again creates black bars.
Changing the project to DVD, black bars are already added in the preview.


What I currently do is:
* render to 16:9 mp4 high quality
* use videotrans' movie-to-dvd with the respective options -m ntsc -q high -a 16:9 -M
* use dvdauthor to create the dvd structure using the previously created vob file
* burn