Bug 469678

Summary:	No good limitation of parallel threads number on proxy renders
Product:	[Applications] kdenlive	Reporter:	Narcis Garcia <narcisgarcia>
Component:	Rendering & Export	Assignee:	Jean-Baptiste Mardelle <jb>
Status:	REPORTED ---
Severity:	normal
Priority:	NOR
Version First Reported In:	23.04.0
Target Milestone:	---
Platform:	Appimage
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Narcis Garcia 2023-05-12 18:14:40 UTC

SUMMARY
***
Proxy clips rendering seems to do more jobs at once than it's allowed in configuration.
***


STEPS TO REPRODUCE
Settings -> Kdenlive settings -> Proxy clips -> Enabled for grater than 700px videos
Settings -> Kdenlive settings -> Environment -> Concurrent process threads: 2
Massively add video clips to a new project.

OBSERVED RESULT
Job queue grows, and at least 8 clips show progress bar running. Others show waiting sign "..." and follow after.

EXPECTED RESULT


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Debian 11 (Stable) +Gnome

ADDITIONAL INFORMATION

Comment 1 Narcis Garcia 2023-05-12 18:20:22 UTC

After a while (after some are completed), only 2 jobs seem to keep working at once.
But if I drag a new group of clips from file manager and drop to same working project bin, more jobs appear to begin to run.
It takes some time (or tasks) to only begin next jobs if configuration is respected.

Perhaps the error is only on new clips arrival.

Comment 2 Narcis Garcia 2024-06-11 09:36:20 UTC

I can't test it with newer Kdenlive versions due to be using Debian GNU/Linux 11:
https://discuss.kde.org/t/kdenlive-24-02-0-a-x86-64-appimage-doesnt-work-on-porteus-5-01-slackware-15-based-distr/12302