Much of this release was based on contributions in the form of code, presets,
title templates, feedback, bug reports, and testing nightly builds or the beta.
Also, recently, we added a Contribute
page to the Web site.
Added Center Playhead option to the Timeline and Keyframes menus.
Added Slow Zoom __, Hold __ presets to the Size and Position filter.
Added a Chroma Hold video filter.
Added a Swirl (HTML) video filter.
Added a simple Templates framework to the Overlay HTML filter (see
path Shotcutshareshotcutqmlfilterswebvfxtemplates to add your own)
with the following templates:
Blue Middle Bar
Creative Commons Music
Blank with Web Animations
Fixed launch crash on Linux by excluding libdrm libraries.
Fixed audio level changed by the Mask : From File filter.
Fixed Text filter may have glitches with Export > Parallel processing
(regression in v18.12.x).
Fixed missing file detected when Stabilize filter added without clicking Analyze.
Fixed external monitoring on Linux screen.
Fixed unable to detect hardware encoders with spaces in the installation
Fixed changing Speed can move a clip.
Fixed changing Speed has no effect when the system region and language
decimal separators are different.
Fixed filter duration not adjusted when trimming a transition.
Fixed ripple trim when clip has a transition.
Fixed removing a transition by trimming adds some frames.
Fixed aspect ratio for File > Export Frame with non-square pixel video.
Fixed handling relative paths to external resources in the Overlay HTML
Fixed a crash opening a project after removing the bottom video track.
Fixed the lossless/H.264 preset to be completely lossless.
Fixed dropping a file from a file manager whose name has special/extended
characters (e.g. [, ]).
Fixed the state of the enabled checkbox for the Overlay HTML filter and
when using a color picker.
Fixed distortion after changing the Keyframe Type of a keyframe for the Scale parameter in the Rotate and Scale filter.
Fixed right-clicking a keyframe to open context menu may change its position.
Fixed distortion when a Mirror filter is placed before a Size and
Position or Rotate and Scale filter.
Fixed Levels filter in locales with comma for decimal point.
Changes and Improvements
Upgraded FFmpeg to v4.1
Improved Color Grading filter by letting all parameters go from -100% to 100%.
Added an automatic retry without Parallel processing when Export job fails.
Set the Save as type list on the Export File dialog on Windows when a
preset defines a filename extension.
The new Mask: Apply filter makes it possible to mask filters without using
multiple tracks! Use Mask: Simple Shape or Mask: From File to start the
filter mask followed the video filters to be masked followed by Mask: Apply
to apply the mask to the filters in between. Filters before or after the mask
filters affect the entire video frame. One can still use Mask: Simple Shape
or the new Mask: From File to affect the alpha channel for multitrack
compositing as before.
Added View > Scopes > Video Histogram.
Added Preset to some more filters:
Added Preset and simple and advanced keyframes to the Balance and Pan audio filters.
Added a Levels video filter with simple and advanced keyframes!
Added Properties > Color Range for video clips.
Replace the Mask video filter with 3 new filters:
Mask: Simple Shape
Mask: From File
The new Mask: From File is a powerful new video filter offering 3 modes:
wipe transition (stock or custom)
Channel > Brightness from a video or image file (File > Custom…)
Channel > Alpha from a video or image file
Moreover, Threshold can be animated with simple or keyframes, which is
especially nice when used with luma-wipe image files (stock or custom). Not only
can you wipe on a filter but also you can use this as an alternative way to make
a wipe transition using multiple tracks (instead of same track transition).
Fixed color accuracy of lossless/Ut Video preset and use yuv422p format.
Fixed number of digits for seconds in the Timer video filter when using Format > MM:SS.SS.
Fixed compositing completely transparent areas of alpha channel darkens output.
Fixed some generators (Color Bars, Ising, Lissajous, Plasma) not working correctly in Timeline.
Fixed Settings > External Monitor > DeckLink/Intensity can stall when Settings > Realtime is enabled.
Fixed making project folder if a parent folder does not exist.
Fixed New Project > Start does not save a .mlt file until you open media and save.
Fixed launch on some Linux (e.g. gentoo) by including libselinux .
Fixed crash when undo Playlist > Remove All.
Fixed auto-saved file not removed when save and exit with no changes.
Fixed the color accuracy of the Color generator.
Fixed numeric locale bug in the Audio Spectrum Visualization and Audio Waveform Visualization filters.
Fixed clip reloaded when leaving Properties > Speed with no change.
Fixed Settings > External Monitor on Windows screen.
Fixed launch crash on Linux with (Csound) csladspa < 6.11.1 installed.
Changes and Improvements
Improved color accuracy of internal RGB-to-YUV conversions.
Changed Quality to 100% when using the intermediate/ProRes preset.
Added 16:9, 9:16, and 1:1 aspect ratios for transition wipes.
Moved Properties > Reverse… from the overflow menu to a button.
Changed Properties > Reverse… to use project folder if used.
When Reverse job completes, automatically open it and add it to the Playlist.
Start playback from the beginning if you play when the play head is at the end.
Improved speed of the Text and Timer video filters.
The main announcement for this release is a major update to an important library
that Shotcut uses for the UI (user interface) called Qt.
There have 6 major releases and two LTS (long term support) releases since the
version we were using. The new version we are using is Qt 5.9.7, which is
LTS (5.9) and is quite stable given the number of revisions (.7). It is a little
faster as well. We did not upgrade to the latest LTS (5.12) in order to retain
compatibility with macOS 10.10 and 10.11, and we want to use the same Qt version
across platforms. (Linux Flatpak is an exception.) With our new Qt builds, we
added support for HTTPS, which extends to our HTML effects based on WebVfx
and QtWebKit. This will let custom HTML titles and effects that you make link
Added Offset to the Timer video filter.
Added Vertical HD 30 fps and Vertical HD 60 fps video modes.
This version makes a big change to the way project files are saved. Now, they
always save numeric values using a period for the decimal point regardless of
your OS locale (region/language) setting. This makes it possible to collaborate
with others that have a different decimal point setting without going through a
(probably incomplete) repair process. This should also help to avoid bugs. This
change applies to new projects only; old projects load and run same as before
including saving. However, be aware that if your locale does not use a period
for the decimal point, then older versions of Shotcut will try to repair a
project created with this version because the older versions do not have this
Timeline and Keyframes Rulers
We changed the Timeline and Keyframes rulers interval to 5 seconds and
show only HH:MM:SS and no frame units. This makes them cleaner and quicker to
Reorganized Some Video Filters
Renamed video filter Circular Frame to Crop: Circle.
Renamed video filter Crop to Crop: Source.
Renamed video filter Text to Text: Simple.
Renamed video filter 3D Text to Text: 3D.
Renamed video filter Overlay HTML to Text: HTML.
Renamed video filter Blur to Blur: Box.
Renamed Reduce Noise video filter to Reduce Noise: Smart Blur.
Changed Export > From to show Source instead of base file name.
Changed the default for Settings > Display Method back to DirectX on
Changed maximum duration of Color, Text, and Color Bars clips to
Increased maximum value of the Timer filter’s Start Delay, Duration, and Offset parameters to 24 hours.
Improved Export Job progress and estimated time remaining.
In the previous versions of Shotcut the Blur video filter could create dark
edges on the image. Therefore, 3 new blur filters were added that do not
have this problem:
Blur: Exponential (fast)
Blur: Low Pass (fast)
Blur: Gaussian (slow)
However, they do not support Keyframes or support blurring in only a horizontal
or vertical direction. So, the existing blur filter was retained but renamed Blur: Box.
The previous version changed the appearance of the toolbar to address a high
density (DPI) issue on Linux. However, that made the icons larger for most
people. Also, some people would simply hide the main toolbar since it took up
so much space. Now, there are two new options in the View menu:
Show Text Under Icons (default on)
Show Small Icons (default off)
Added Jobs to the main toolbar.
Reordered panel buttons on main toolbar to match View menu.
Alpha Channel Support for HTML-based Filters
Shotcut can use HTML technologies for video effects, but previously it was
limited at support the existing image or video’s alpha channel (transparency
mask) and would always overwrite it with its own alpha channel, which often
times was opaque. For example, this prevented maintaining transparency when
using 3D text on a transparent color clip. Now, it supports the alpha channel.
Using this, we have new Crop video filters.
Previous versions of Shotcut’s Crop filter did not behave as some expected
because it removes pixels from the edges of the source and thus changes its
aspect ratio. Still, it can be useful when working with sources with a
higher resolution than the project because it does not require one to crop and
then upscale to remove black bars. Therefore, the existing crop filter was
renamed to Crop: Source, and two new crop filters were added using HTML.
These two new crop filters can use the HTML alpha channel support by changing
the alpha component of their Color parameter. This is very useful when using Crop: Rectangle or Crop: Circle while compositing video tracks.
More New Things
Added Ripple All button to Timeline toolbar.
Added a vertical Flip video filter.
Added Reduce Noise: HQDN3D video filter.
Added Noise: Fast video filter.
Added Noise: Keyframes video filter.
Added Add Keyframe button in Keyframes (only on parameters that show a
Added keyboard shortcuts Ctrl+0-9 to toggle the panels.
Added Alt 0/+/- shortcuts to adjust the zoom in Keyframes.
Added Swedish translation.
Fixed deleting the project file if there was a save error.
Fixed reliability of Settings > Display Method > Software on Windows.
Fixed Crop: Source filter not working with Color clip.
Fixed using filters on Color Bars and other generator clips.
Fixed audio filters (Compressor, Expander, Limiter, Notch, Reverb) broken
on comma for decimal.
Fixed alpha video opaque on gaps in Timeline.
Fixed Convert to Edit-friendly and Reverse if there is no audio track.
Fixed Measure Video Quality broken.
Fixed Alpha: Adjust > Invert checkbox on reload.
Fixed color eye-dropper (picker) error.
Fixed audio Pan filter channel resets on reload.
Fixed a crash using Mirror filter before Rotate and Scale or Size
Fixed poor Reverse audio quality for mp4 and mkv options.
Fixed the Simple Scroll HTML template may not scroll up or left completely.