Change log

3.7.0

Changes

• Settings and logs move to the application support directory.
• System Information shows the settings path, log path, and Linux desktop.
• The Linux package has a desktop entry and icons.
• The HUD shows the file name of the current image of a sequence.
• Opening one image of a sequence starts playback at that image.
• OTIOZ bundle media can be read with the FFmpeg command line.
• The status bar shows the highlighted menu item's tooltip.
• The Python bindings use nanobind.
• Building requires C++20.
• CineForm movies can be read and written.
• Hovering the timeline shows a preview of the frame under the cursor.
• Exposure and soft clip are in the Color section of the Color tool.
• Individual audio channels can be played.
• The status indicator shows the options in use, and clicking one shows its controls.
• The cache sizes and the FFmpeg thread count can be set from the command line.
• Automatic OCIO input color spaces follow all of the configuration's file rules, including the default rule.
• Movies can be exported as APV.
• Movies can be exported from the command line with the Export/Movie command, and -offscreen runs without showing the window.
• Added global toggle and reset for color controls.
• The OCIO environment variable is used to initialize the OCIO settings.
• Add a -mediaReference command line option.
• The view's color buffer defaults to RGBA F16.
• Removed custom font settings, a CJK font is now bundled with the application.
• The window title shows the review or file name. Contributed by timurhai.
• The FFmpeg settings show the ffmpeg and ffprobe commands.
• Movies can be exported to Matroska files: FFV1, AV1, H.264, HEVC, and VP9 are written to ".mkv".
• Style updates.
• The left and right arrow keys move between the menus.
• The file browser filters by kind of file: images, movies, audio, and so on.
• Gestures are supported on touch screens.
• Library updates: - FFmpeg 9.0.1 - OpenAPV 1.1.1.0

Fixes

• The heads up display no longer reports the color and pixel of a file that has been closed.
• A file with a mono audio stream per channel plays all of the channels.
• A still image paired with an audio file lasts as long as the audio.
• Settings fixes for running multiple application instances.
• Clearing the drawing on a compared frame also clears the "B" strokes.
• A tilt wheel no longer zooms the view.
• The window is drawn while it is being resized on macOS and Windows.
• A movie's start timecode is found when a subtitle or other data track comes before its timecode track.
• Opening many files at once no longer reads every one of them.
• Color management no longer slows playback when the timeline shows thumbnails; a regression in 3.6.0.
• Enlarging with High Quality no longer shows resize artifacts.
• USD support, removed in 3.6.0, is back in source builds.
• High Quality filtering no longer softens pictures shown or exported at their own size.
• Audio no longer crackles when playing faster or slower.
• A playlist restores a tiled comparison with all of its files.

3.6.0

Changes

• Add review sessions and annotations, contributed by MattRM2.
• Add playlists.
• Directories can be opened with a wildcard filter and a depth.
• Reloading an image sequence picks up new frames.
• The file list can be reordered by dragging.
• Add Python bindings and a full Python version of DJV as an example.
• Add support for reading camera raw formats (CR3, NEF, ARW, DNG, and others).
• Add support for reading OpenEXR files with HTJ2K compression.
• Automatic OCIO input color spaces, including the OpenEXR "colorInteropID" attribute.
• The LUT can be applied inverted for ICC monitor profiles.
• Mouse wheel actions can be remapped for zooming and scrubbing.
• Movie and image sequence exports carry color information.
• Add thumbnails to the file browser.
• The file browser can be opened in a window of its own.
• The file browser can be driven from the keyboard.
• The FFmpegCmd plugin is merged into the FFmpeg plugin as a fallback.
• Add presets for movie exports.
• Movies can be exported with the FFmpeg command line application.
• AV1 support now works on Windows.
• The Information tool shows the file name and directory.
• The color pickers gain a palette of preset colors, and remember which tab was used.
• Library updates: - OpenColorIO 2.5.2 - OpenEXR 3.4.15 - OpenImageIO 3.1.16.0 - libtiff 4.7.2

Fixes

• A warning is shown when comparing files that do not overlap in time.
• The color corrections are applied in linear when the OCIO configuration names a scene_linear role.
• The keypad's Enter key works like the Return key.
• File information showed a frame rate of zero for movies whose container declares it as "0/0".
• Fixes for anamorphic movies.

3.5.0

Changes

• Add support for OTIO multiple media references.
• Add support for OTIO spatial coordinates.
• Add support for partial image sequences.
• Add support for reading SVG files.
• Add audio export.
• Add a "butterfly" compare mode.
• Remove "A" compare mode and make the other compare modes toggles.
• Add support for exporting A/B comparisons.
• Add a gain to the difference comparison, so that differences too small to see at their own size can be brought up.
• Group the information tool into video, audio, and file metadata, with the video first, and show the format of the file next to the format it is decoded to.
• Movie exports carry the start timecode of the range that was exported.
• Add high quality image scaling options.
• Multiple tools can be opened at the same time.
• Add a waveform height option.
• Add an image negative option.
• Add custom aspect ratios.
• Add a center marker option.
• Add more grid and HUD options.
• Add an option for whether the magnify tool tracks the view.
• Multiple files can be opened with the file browser.
• Add the NotoSansCJKsc-Regular font for basic CJK text rendering.
• Add more OpenEXR attributes.
• Add the JPEG file format to export options.
• Add a FFmpeg option to enable hardware decoding for compatible files.
• Add the aom library for AV1 decoding support (macOS and Linux).
• Allow the "Escape" key to be used for keyboard shortcuts.
• Add image I/O library versions to the system information.
• Performance improvements.
• Style updates.
• Library updates: - FFmpeg 8.1.2 - OpenImageIO v3.1.14.0 - subprocess

Fixes

• Add the file extensions ".avif" and ".mxf" to the FFmpeg command plugin.
• Fix the duration of movies read with the FFmpeg command plugin.
• Fix metadata with multiple lines overlapping other entries in the information tool.
• Fix opening image sequences whose name ends with a hyphen before the frame number, e.g. "shot-0001.exr".
• Fix exported image sequences being numbered from zero rather than with the frame numbers the export tool shows, which also kept the overwrite warning from appearing when exporting a range twice.
• Fix the macOS application not starting after being renamed.
• Fixes for the grid and outline in compare mode.
• Fixes to prevent cache usage exceeding 100%.
• Fixes for log file failures.

3.4.2

Fixes

• Fix for FFmpeg command on macOS.

3.4.1

Fixes

• Build fixes.

Changes

3.4.0

Changes

• Movies can now be decoded using the ffmpeg command line application.
• Custom fonts can be added to support different languages.
• Add a setting to start playback when opening files.
• Add settings for the thumbnail cache.
• Add text selection to the information, messages, and system log tools.
• Add auto-scroll to the messages and system log tools.
• Move status bar indicators into a popup widget.
• General performance improvements.
• USD support has been removed from the packages, but is still available when building from source.
• Library updates: - FFmpeg 8.1 - SVT-AV1 v4.0.1 - USD v26.03

Fixes

• Mouse focus fixes for zooming the viewport and timeline.
• Image sequence fix for the built-in file browser.
• Image sequence fix for files in the same directory with similar names, e.g., "asteroid_V01" and "asteroid_V02".

3.3.4

Features

• Add a button for switching playback loop mode.
• Switch compare mode to "A" if there is only a single file open.

Fixes

• Fix directory selection for exports.
• Fix flipped export for images and image sequences.
• Fix for YUV->RGB conversion.
• Fix for overlay compare mode.
• Fix for timeline thumbnails shortcuts.
• Fix for window "Float On Top" option.
• Fix for values being clamped to 0.0-1.0 in the color picker tool.
• Fix for contrast control in the color tool.

3.3.3

Features

• Add the escape key for closing the secondary window.

Fixes

• Fix flipped export.
• Fix tools tooltips.

3.3.2

Features

• Add pixel and mouse binding labels to the color picker and magnifier tools.
• Both the color picker and magnifier update when picking with the mouse.
• Add status bar indicators for displaying when mirroring is enabled.
• Add the version number to the window title.
• Add a command line flag to print the version.
• Add a dialog for displaying system information.

Fixes

• Fix for keyboard shortcuts search box.
• Fix for window title bar appearing off screen.
• Fix for video levels.

3.3.1

Fixes

• macOS package fixes.

3.3.0

Features

• The built-in file browser can now display image sequences as a single item with frame range.
• The command line now accepts file sequences like "render.#.exr".
• The tab key can now be assigned to shortcuts (e.g., Ctrl+Tab and Ctrl+Shit+Tab for changing the current file).
• Add the "Extra 1" and "Extra 2" buttons to the mouse settings.
• Add a frame shuttle scale to the mouse settings.
• Changed the default mouse settings: left button = frame shuttle, middle mouse button = pan
• Add primary and secondary keyboard shortcuts.
• Add a search box for keyboard shortcut settings.
• Add the OCIO configuration name to the color tool.
• Hide the path for the OCIO and LUT file names in the color tool.
• Add a magnify tool.
• Add grid labels.
• The playback speed can be increased and decreased by pressing forward or reverse multiple times.
• Add status bar indicators to display whether color controls, the audio sync offset, or the output device are enabled.
• Remove text eliding from the tab bar and HUD file names.
• Library updates: - SDL2 release-2.32.10

Fixes

• Fix compare overlay and difference flipping the image.
• Fix middle and right mouse buttons that were swapped in the settings.
• Fix the mouse settings to only show the "Command" key on macOS.
• Fix for the clipboard that was causing excessive CPU usage on Gnome.
• Fix for compiling on Rocky 8.
• Fix for keyboard shortcuts in the secondary window.

3.2.1

Fixes

• macOS package fixes.

3.2.0

Features

• SDL2 support for window creation and input handling.
• Support for OpenImageIO.
• Signed macOS packages.
• Library updates: - tlRender 0.13.0 - feather-tk 0.5.0 - OpenTimelineIO v0.18.0 - OpenColorIO v2.5.0 - OpenEXR v3.3.6 - Imath 3.2.1 - FFmpeg 8.0 - USD v25.11 - libpng v1.6.50 - libjpeg-turbo 3.1.1 - OpenSSL 3.5.2 - curl 8_15_0 - freetype 2-14-1 - minizip 4.0.10

Fixes

• Fix application closing when window is minimized.
• Fix outline with alpha blend modes.
• Fix outline rendering underneath grid.
• Fix display scale values.
• Add the units to the audio sync offset label.
• Fix opening file associations on macOS.
• Fixes for keyboard mapping and number pad.
• Fixes for building with CMake 4.x versions.
• Fix for cached frames wrapping around the timeline.

3.1.1

Features

• Make the timeline minimized by default.
• Add sample data for testing.

Fixes

• Make the default color buffer RGBA_F32.
• More fixes for OpenColorIO settings.

3.1.0

Features

• Add support for the OCIO environment variable and built-in OCIO configurations.
• Add more speed options.
• Add buttons to clear keyboard shortcuts.
• Add a setting for whether the file browser shows hidden files.
• Add position and zoom controls to the view tool, and a zoom control to the tool bar.
• Make the timeline ticks more visible.
• Add a keyboard shortcut (Ctrl+G) for enabling the grid.
• Add a keyboard shortcut (Ctrl+N) for toggling whether OCIO is enabled.
• Add a keyboard shortcut (Ctrl+K) for toggling whether the LUT is enabled.
• Add a Windows NSIS package.
• Use the current playback speed and layer when exporting.
• Add a setting for which mouse button is used for panning, compare wipe, color picker, and frame shuttle.
• Add a setting for scaling the mouse wheel zoom in the viewport and timeline.
• Add a button to manually save the settings.

Fixes

• Fix for image sequences with uppercase file extensions.
• Fix for building with BMD support.
• Fix for OCIO settings not saving.
• Fix the timeline duration on the bottom tool bar to show the in/out range.