Bug 510543

Summary:	Playing any portrait MOV file (1920x1080) crashes Kdenlive
Product:	[Applications] kdenlive	Reporter:	ryand45647457434
Component:	Monitors & Playback	Assignee:	Jean-Baptiste Mardelle <jb>
Status:	RESOLVED UPSTREAM
Severity:	crash
Priority:	NOR
Version First Reported In:	git-master
Target Milestone:	---
Platform:	Microsoft Windows
OS:	Microsoft Windows
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description ryand45647457434 2025-10-12 22:46:12 UTC

SUMMARY


STEPS TO REPRODUCE
1. Import or play an already existing .MOV file that is rotated to portrait (originally 1920x1080) into.

OBSERVED RESULT
Program crashes (freezes briefly with mouse turning into "working in background" symbol and then closes) when it happens.

EXPECTED RESULT
The video should actually play

SOFTWARE/OS VERSIONS
Kdenlive: 25.11.70 - rev. f6e8c6b
MLT: 7.33.0
FFmpeg: 
Package Type: Unknown/Default
Qt: 6.9.2 (built against 6.9.2 x86_64-little_endian-llp64)
Frameworks: 6.18.0
System: Windows 11 Version 24H2
Kernel: winnt 10.0.26100
CPU: x86_64
Windowing System: windows
GPU: 
Movit (GPU): disabled
Track Compositing: qtblend

Comment 1 Jean-Baptiste Mardelle 2025-11-15 16:32:28 UTC

There was an issue in MLT where videos with rotation crashed when HW acceleration was enabled. This is now fixed upstream:
https://github.com/mltframework/mlt/commit/2999a10d141fb8b00f11c263a3ac8af01849aca0