Bug 481128 - KdenLive 23.08.4 Transform results in blank clip in render output file
Summary: KdenLive 23.08.4 Transform results in blank clip in render output file
Status: RESOLVED WORKSFORME
Alias: None
Product: kdenlive
Classification: Applications
Component: Effects & Transitions (show other bugs)
Version: 23.08.4
Platform: Microsoft Windows Microsoft Windows
: NOR normal
Target Milestone: ---
Assignee: Jean-Baptiste Mardelle
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2024-02-09 17:09 UTC by TL
Modified: 2024-03-16 03:47 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:


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Description TL 2024-02-09 17:09:50 UTC
SUMMARY
***
Transform to change size and position look fine in the output monitor window, but results in a blank screen (with audio) when the file is rendered. If I delete the transform the render works properly. Sometimes if I recreate the project and apply transform it will then work. 
***


STEPS TO REPRODUCE
1. Apply transform to clip. 
2. render 
3. 

OBSERVED RESULT
no video output in rendered file. audio is okay.

EXPECTED RESULT


SOFTWARE/OS VERSIONS
Windows: 10
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
I have tried different render file formats, but the results are the same.
Comment 1 Jean-Baptiste Mardelle 2024-02-15 04:56:32 UTC
Thanks for the report. I cannot reproduce in a simple project.
This might be an issue with your source clip's video format. Can you test the same effect on a color clip, does it work ? If it does, can you please try to transcode the clip using the Project Bin's context menu on the clip > "Transcode to edit friendly format". This will create a new video clip, then try reproducing the bug with this new clip.
If this is the case, can you tell me which kind of source clip it is : from a phone, screen capture, etc, and it would be interesting if you can share the original source clip with me.
Comment 2 TL 2024-02-15 15:35:03 UTC
Hello,

Unfortunately, I can't figure out what steps cause this error. If I 
create a new project and use the same source clip the transform works okay.

FYI, my input is from a sony camcorder. I was recording at 60i. 
Everything has been in color. I have been outputing to 29.97 fps for 
upload to youtube.

I tried using 'transcode to edit friendly format'  on a problem project, 
but that project still renders with audio only if I use the transform 
effect.

I will contact you if I'm able to figure out how to recreate the problem.

On 2/14/2024 11:56 PM, Jean-Baptiste Mardelle wrote:
> https://bugs.kde.org/show_bug.cgi?id=481128
>
> Jean-Baptiste Mardelle <jb@kdenlive.org> changed:
>
>             What    |Removed                     |Added
> ----------------------------------------------------------------------------
>               Status|REPORTED                    |NEEDSINFO
>           Resolution|---                         |WAITINGFORINFO
>
> --- Comment #1 from Jean-Baptiste Mardelle <jb@kdenlive.org> ---
> Thanks for the report. I cannot reproduce in a simple project.
> This might be an issue with your source clip's video format. Can you test the
> same effect on a color clip, does it work ? If it does, can you please try to
> transcode the clip using the Project Bin's context menu on the clip >
> "Transcode to edit friendly format". This will create a new video clip, then
> try reproducing the bug with this new clip.
> If this is the case, can you tell me which kind of source clip it is : from a
> phone, screen capture, etc, and it would be interesting if you can share the
> original source clip with me.
>
Comment 3 Bug Janitor Service 2024-03-01 03:46:55 UTC
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 4 Bug Janitor Service 2024-03-16 03:47:07 UTC
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!