Bug 453956 - KDE does not render videos in alpha
Summary: KDE does not render videos in alpha
Status: RESOLVED WORKSFORME
Alias: None
Product: kdenlive
Classification: Applications
Component: Video Display & Export (show other bugs)
Version: 21.12.3
Platform: Ubuntu Linux
: NOR critical
Target Milestone: ---
Assignee: Jean-Baptiste Mardelle
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-05-17 20:22 UTC by Guilherme Dantas
Modified: 2022-06-28 05:56 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:


Attachments
This is how the file is viewed, even if it is exported in Alpha formats, such as MOV. (2.69 MB, image/png)
2022-05-17 20:22 UTC, Guilherme Dantas
Details

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Description Guilherme Dantas 2022-05-17 20:22:39 UTC
Created attachment 148934 [details]
This is how the file is viewed, even if it is exported in Alpha formats, such as MOV.

SUMMARY
***
When using the option to render videos in Alpha format (VP8/9/MOV/UtVideo), KDENlive renders the video, but when importing to another file, the video appears with a black background. Unfortunately the program does not consider this as an error, so it is difficult to find debug files.
***

SOFTWARE/OS VERSIONS

Linux/KDE Plasma: Ubuntu Studio 22.04
(available in About System)
KDE Plasma Version: 5.24.4
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3
Comment 1 Julius Künzel 2022-06-27 13:58:21 UTC
Thanks for your report!

Export with alpha was broken in recently and has been fixed in Kdenlive 22.04 please update and try again (https://kdenlive.org/download). Please note that you have to select a render preset from the "Video with Alpha" category.

Please close this report if it is fixed or update the Kdenlive version of this report and set the status back to "REPORTED"
Comment 2 Guilherme Dantas 2022-06-28 05:56:12 UTC
(In reply to Julius Künzel from comment #1)
> Obrigado pelo seu relato!
> 
> A exportação com alfa foi interrompida recentemente e foi corrigida no
> Kdenlive 22.04, atualize e tente novamente ( https://kdenlive.org/download
> ). Observe que você deve selecionar uma predefinição de renderização na
> categoria "Vídeo com Alfa".
> 
> Por favor, feche este relatório se for corrigido ou atualize a versão
> Kdenlive deste relatório e defina o status novamente para "RELATADO"

Thanks for letting me know! I downloaded the latest version in FLATPAK format as a way of testing and it worked. That was exactly the problem you mentioned. I confess that I wouldn't want to go through that scare again.