Software-update: Kdenlive 25.08

Versie 25.08 van Kdenlive is uitgekomen. Kdenlive, een afkorting voor KDE Non-Linear Video Editor, is een geavanceerd, niet-lineair videobewerkingsprogramma en wordt voornamelijk ontworpen voor Linux, maar er zijn ook downloads voor Windows en macOS. Het maakt gebruik van diverse andere opensourceprojecten, zoals FFmpeg en het MLT-videoframework. In deze uitgave zijn de volgende veranderingen en verbeteringen aangebracht:

Mixer

Redesign of the audio mixer bringing levels with clearer visuals and thresholds. We also did some code refactoring and cleanup. This change fixes issues with HiDPI displays with fractional scaling.

Titler

This release the titler received some much needed love like improved SVG and image support with ability to move and resize items, added center resize with Shift + Drag, and renamed the Pattern tab to Templates and moved the templates dropdown to it. Other fixes include:

Added timecode widget with ability to drag to seek in the Titler,(Shift+drag for 1 frame, CTRL+drag for fast seek) Fix issues when resizing images would also moves themFix titler selection on create / resize objectFixed an issue where the titler's panel width was consuming half the screenSave and restore the panel width on reopeningFix title thumbnail not updating in timeline after change

Added timecode widget with ability to drag to seek in the Titler,(Shift+drag for 1 frame, CTRL+drag for fast seek) Fix issues when resizing images would also moves them

Fix titler selection on create / resize object

Fixed an issue where the titler's panel width was consuming half the screen

Save and restore the panel width on reopening

Fix title thumbnail not updating in timeline after change

Scopes

Improved Scope styling by using system palettes for better theme integration as well as bug fixes in artifacts on high zoom level and paint modes. Compare the old styling on the left side with the new styling on the right:

Subtitles and Text-To-Speech

Require shift + drag of a subtitle clip to create a new layerMake the subtitle edit widget resizable to adapt to lower resolutionsFix crash dropping media file on subtitle trackSubtitle code refacotringFix subtitle layer name widthFix subtitles showing on the top layer rather than appearing in lower layers on project loading.Fix Whisper TTS using Python 3.13Whisper: disable translation when the Turbo model is selectedFix Vosk TTS producing bad subtitles

Require shift + drag of a subtitle clip to create a new layer

Make the subtitle edit widget resizable to adapt to lower resolutions

Fix crash dropping media file on subtitle track

Subtitle code refacotring

Fix subtitle layer name width

Fix subtitles showing on the top layer rather than appearing in lower layers on project loading.

Fix Whisper TTS using Python 3.13

Whisper: disable translation when the Turbo model is selected

Fix Vosk TTS producing bad subtitles

Markers and Guides

Guides and Markers got a major overhaul this release to improve the project organization. Clicking a marker in the list now always selects it in the timeline

When adding a new marker, it’s automatically selected in the guides listSelecting a guide in the timeline also highlights it in the guides listNew option to show thumbnails in the markers list dialogAdded a “Show markers for all clips in the project” toggle to diaplay markers in other sequencesConsistently use bookmark icon for guides/markersImproves Project Notes integrationRender dialog now updates correctly when sequence offsets changeSequence timecode offsets now propagate to the timeline ruler, monitor, and guides listGuides are correctly adjusted when changing project profile to match a clip profile

When adding a new marker, it’s automatically selected in the guides list

Selecting a guide in the timeline also highlights it in the guides list

New option to show thumbnails in the markers list dialog

Added a “Show markers for all clips in the project” toggle to diaplay markers in other sequences

Consistently use bookmark icon for guides/markers

Improves Project Notes integration

Render dialog now updates correctly when sequence offsets change

Sequence timecode offsets now propagate to the timeline ruler, monitor, and guides list

Guides are correctly adjusted when changing project profile to match a clip profile

Project Notes

Some highlights include: improve icons, automatically convert typed timecodes to links when pressing enter, fix pasting text with multiple lines, notes can create guides and markers directly, and the widget has improved icons and text handling

Monitors

Fix rotoscoping shape not matching selection in monitorFix monitor overlay for Obscure and Alpha Shape effectsFix Transform monitor tool resizing when rotatedFix pattern/lines overlay of the project monitor misaligning if clip changes while zoomed inImproved monitor snapping: added back snapping when resizing for non-rotated frames, snapping when moving a rotated frame, and added snapping support for all edges when moving instead of only top-leftChange Timecode color of active MonitorMake sure playhead is always on top of indicatorsMake transform effect monitor grid setting apply to both monitorsFix keyframe in monitor not correctly reported on clip selectionAdjust monitor timecode for sequence clips with timecode offsetMonitor code cleanup

Fix rotoscoping shape not matching selection in monitor

Fix monitor overlay for Obscure and Alpha Shape effects

Fix Transform monitor tool resizing when rotated

Fix pattern/lines overlay of the project monitor misaligning if clip changes while zoomed in

Improved monitor snapping: added back snapping when resizing for non-rotated frames, snapping when moving a rotated frame, and added snapping support for all edges when moving instead of only top-left

Change Timecode color of active Monitor

Make sure playhead is always on top of indicators

Make transform effect monitor grid setting apply to both monitors

Fix keyframe in monitor not correctly reported on clip selection

Adjust monitor timecode for sequence clips with timecode offset

Monitor code cleanup

We've added work on rendering, encoding, decoding, and transcoding such as:

Decoding

Added Enable Hardware Decoding option in the Config Wizard in preparation for future hardware acceleration features

Added Enable Hardware Decoding option in the Config Wizard in preparation for future hardware acceleration features

Rendering / Encoding

Added power management option to disable sleep while rendering and playingAdded Nvidia 10 bit x265 encodingAdded 10 bit export profiles in the render dialog (Do note that it will be converted to 8 bit when using compositing or non avfilter effects)Fix image sequence render incorrectly reported as failedEnsure audio checkbox is disabled if rendering to an image sequenceFix possible locale issue on render in Mac/WindowsAdded ability to show log files in render dialog Job Queue tabAdded option to keep log files in the render dialog optionsReplace AV1 profile with faster SVT-AV1 and added preset option to control quality and speedAddedSVT-AV1 to codecs which use CRF optionFix canceling a render would leave Kdenlive in an unstable stateWarn when exiting Kdenlive when render jobs are running, allow to terminate all jobsUpdate render dialog guides when sequence offset changesDisplay timecode offset in render dialog

Added power management option to disable sleep while rendering and playing

Added Nvidia 10 bit x265 encoding

Added 10 bit export profiles in the render dialog (Do note that it will be converted to 8 bit when using compositing or non avfilter effects)

Fix image sequence render incorrectly reported as failed

Ensure audio checkbox is disabled if rendering to an image sequence

Fix possible locale issue on render in Mac/Windows

Added ability to show log files in render dialog Job Queue tab

Added option to keep log files in the render dialog options

Replace AV1 profile with faster SVT-AV1 and added preset option to control quality and speed

AddedSVT-AV1 to codecs which use CRF option

Fix canceling a render would leave Kdenlive in an unstable state

Warn when exiting Kdenlive when render jobs are running, allow to terminate all jobs

Update render dialog guides when sequence offset changes

Display timecode offset in render dialog

Reduced memory consumption of the background removal (SAM2) featureAdded more code tests to improve stabilityImproved packaging in MacOS, Windows, Snaps and FlatpakCleanup plugins configuration pageFix SAM2 use system packages hiddenAllow installing specific CUDA version for Whisper and SAM2Fixes to undo/redo operationsOpentimelineIO (OTIO) fixesDrop mediainfo dependency now that we can directly read timecode from MLT

Reduced memory consumption of the background removal (SAM2) feature

Added more code tests to improve stability

Improved packaging in MacOS, Windows, Snaps and Flatpak

Cleanup plugins configuration page

Fix SAM2 use system packages hidden

Allow installing specific CUDA version for Whisper and SAM2

Fixes to undo/redo operations

OpentimelineIO (OTIO) fixes

Drop mediainfo dependency now that we can directly read timecode from MLT

MacOS: Allow opening project files by double click (3 year old bug)Windows: Typewriter effect crash in TitlerAppImage: Fix missing / corrupted font making App unusable on Ubuntu 24.04

MacOS: Allow opening project files by double click (3 year old bug)

3 year old bug

Windows: Typewriter effect crash in Titler

AppImage: Fix missing / corrupted font making App unusable on Ubuntu 24.04

Source: Tweakers.net