Bug 507492

Summary:	Sharp/Unsharp error
Product:	[Applications] kdenlive	Reporter:	Özer Irmak <oirmak1975>
Component:	Video Effects & Transitions	Assignee:	Jean-Baptiste Mardelle <jb>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	cwickel, fehler-im-programm
Priority:	NOR
Version First Reported In:	25.04.3
Target Milestone:	---
Platform:	Other
OS:	Other
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Özer Irmak 2025-07-25 21:13:08 UTC

When I try to increase the strength alpha section of the kdenlive sharp/unsharp effect to fix a blurry video, the kdenlive program takes me to windows and closes. Could you check this section and see if the same thing happens to you?

Comment 1 Jean-Baptiste Mardelle 2025-07-26 03:54:58 UTC

Thanks for your report, I can confirm the issue. Crash happens inside libav, will try to investigate.

Comment 2 Jean-Baptiste Mardelle 2025-07-30 23:08:29 UTC

Git commit 678ef6e612d9fdc964419ceaf90e50a26ab29547 by Jean-Baptiste Mardelle.
Committed on 30/07/2025 at 22:58.
Pushed by mardelle into branch 'master'.

avfilter.unsharp alpha crashes Kdenlive, disable it

M  +3    -3    data/effects/avfilter/avfilter_unsharp.xml

https://invent.kde.org/multimedia/kdenlive/-/commit/678ef6e612d9fdc964419ceaf90e50a26ab29547

Comment 3 Jean-Baptiste Mardelle 2025-07-31 06:27:10 UTC

Fixed in MLT with this commit:
https://github.com/mltframework/mlt/commit/8b0f73e7363a8032a98d769900f8ed382e96b1a4

Comment 4 Jean-Baptiste Mardelle 2025-07-31 06:28:49 UTC

*** Bug 506315 has been marked as a duplicate of this bug. ***

Comment 5 Jean-Baptiste Mardelle 2025-08-22 08:19:25 UTC

*** Bug 508454 has been marked as a duplicate of this bug. ***