Bug 446838

Summary: edge cropping and transformation: different result in preview and rendered video
Product: [Applications] kdenlive Reporter: Pascal Niklaus <pascal+kde>
Component: Rendering & ExportAssignee: Jean-Baptiste Mardelle <jb>
Status: REPORTED ---    
Severity: normal CC: fritzibaby
Priority: NOR    
Version First Reported In: 21.08.3   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: rendered video
Preview in UI, and transformations applied

Description Pascal Niklaus 2021-12-11 16:15:05 UTC
Created attachment 144453 [details]
rendered video

SUMMARY
***
When I combine edge cropping and a shift (transformation with X offset), the preview does not show what is rendered.
***


STEPS TO REPRODUCE
1.  Insert a clip
2.  add transformation and edge crop operations (order does not matter)
3.  compare rendered output and project (pre)view.
See attachments for an example of the preview and settings, and what is rendered.


OBSERVED RESULT
Preview and rendered position of video are different. Notice that the blue "X" at the left is clipped in the rendered file, but not in the preview.

EXPECTED RESULT
The preview should correspond to what is rendered 

SOFTWARE/OS VERSIONS
Kdenlive: 21.08.3
MLT: 7.2.0
Qt: 5.12.8 (built against 5.12.8 x86_64-little_endian-lp64)
Frameworks: 5.68.0
System: Ubuntu 20.04.3 LTS
Kernel: linux 5.4.0-91-generic
CPU: x86_64
Windowing System: xcb
Movit (GPU): disabled

ADDITIONAL INFORMATION
Comment 1 Pascal Niklaus 2021-12-11 16:17:01 UTC
Created attachment 144454 [details]
Preview in UI, and transformations applied

This differs from the rendered content (other attachment)