Bug 407154

Summary:	Issue rendering PAL input
Product:	[Applications] kdenlive	Reporter:	frankenau <webconsult.frankenau>
Component:	Rendering & Export	Assignee:	Jean-Baptiste Mardelle <jb>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	fritzibaby, snd.noise
Priority:	NOR	Flags:	fritzibaby: timeline_corruption+
Version First Reported In:	19.04.0
Target Milestone:	---
Platform:	Manjaro
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description frankenau 2019-05-02 11:32:58 UTC

I try to create a video based on a recorded TV transport stream. I'm posting this from Germany, where we've got PAL MPEG-2 720×576 at 25fps interlaced.

When I render the final video, I'm getting regular freezes (or jumps) in the output. This especially happens when I render in multiple threads. If I render in only one thread, there are also freezes but only at those points, where I cutted the input video.

If it helps, I leke to mention, that this issue did not occur in the previous release of kdenlive.

(Please forgive my english!)

Comment 1 emohr 2019-05-04 18:58:12 UTC

Please try with the current Kdenlive AppImage version 19.04.0
https://files.kde.org/kdenlive/release/ 

Or the Kdenlive_Nightly_Appimage
https://binary-factory.kde.org/job/Kdenlive_Nightly_Appimage_Build/lastSuccessfulBuild/artifact/ 

Environment settings: set processing threads to 1. Multithreading is not possible at the moment. Render -> tick “parallel processing” -> tick “more options” -> on the right side set threads to “0”. This is the fastest render setting. If you have problem with the rendered video untick “parallel processing”.

Comment 2 farid 2021-03-04 21:16:56 UTC

The more than one thread option had been disabled as it is very buggy.