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Keyframe MPX Documentation

Release Notes

Version History

v1.5.7 (October 1, 2026)

  • Added - Menu item to lock next/prev bookmark to current range
  • Added - Range Time Control option to match Global TC display format
  • Added - Options to modify the title bar text
  • Fixed - Looping while playing backward may have unexpected delay
  • Fixed - TS file wilth very large startTimeOffset fails to play
  • Fixed - Audio not playing for files with missing stream data or discontinuities in packet timestamps
  • Fixed - Seek time improvements based on encoding properties
  • Fixed - Global TC highlight may remain visible after dragging off control

v1.5.4 (September 3, 2026)

  • Fixed - File with non-standard encoding settings displays some artifacting
  • Fixed - Possible macOS crash on startup

v1.5.1 (August 28, 2026)

  • Added - Option to disable frame number in title bar in Preferences (Windows)
  • Added - Title bar frame display applies Global Time Control format type
  • Fixed - [macOS] Preferences (General) gap in layout

v1.4.9 (August 19, 2026)

  • Added - Stepped playback seek and scrub functionality similar to to KMP/KPro
  • Added - Double-click to toggle playback (can be enabled in Preferences)
  • Added - Extra options to Edit TC Frame Offset Override dialog and changed to a popup
  • Fixed - "Pause on scrub" should only trigger when frame changes during mouse drag
  • Fixed - "Go to frame" popup should only change frame if return key pressed (otherwise cancel)
  • Fixed - Stepped playback returns to normal playback after seeking/scrubbing
  • Fixed - Updated text in Preferences for clarity

v1.4.8 (July 24, 2026)

  • Added - Loop delay option (e.g. wait 'x' seconds before looping)
  • Fixed - Extra frame is displayed during stepped playback
  • Fixed - Updates to menu item text

v1.4.5 (June 12, 2026)

  • Added - Menu item (and hotkey) to open the custom playback speed popup
  • Fixed - Finer granularity to playback speed increments when < 1.0x speed
  • Fixed - Changed "Go To Frame" dialog to a popup

v1.4.4 (May 12, 2026)

  • Fixed - [MayaToKeyframeMPX] After playblast set Maya current frame to first playblast frame
  • Fixed - [MayaToKeyframeMPX] Playblasting a highlighted range (in Maya's Time Slider) has extra frame
  • Fixed - [MayaToKeyframeMPX] Playblasting should raise/activate application window if possible
  • Fixed - Advanced Playblast generated playblasts don't raise the player
  • Fixed - Console window isn't restored if minimized (when selected through main menu)

v1.4.1 (February 25, 2026)

  • Added - Timeline property to override the project's time control frame offset
  • Added - Go To Frame dialog
  • Added - [MayaToKeyframeMPX] Ability to set time control frame offset directly and on playblast
  • Added - [MayaToKeyframeMPX] Support for webm playblasts (Maya 2026)
  • Fixed - Time control frame offset in Project Properties needs min/max values increased
  • Fixed - [MayaToKeyframeMPX] Sync should be blocked temporarily when playblasting (through UI)
  • Fixed - [MayaToKeyframeMPX] Negative frame values may disable sync
  • Fixed - [MayaToKeyframeMPX][macOS] Playblast fails when using default format
  • Fixed - [MayaToKeyframeMPX][macOS] Playblast may result in an file not found error and automatic reload
  • Updated - Qt Version

v1.3.1 (October 14, 2025)

  • Added - Hotkeys for panning (pan/zoom)
  • Added - HDR tonemapping
  • Added - 10/12-bit color rendering pipeline (experimental)
  • Fixed - Screen capture media file has an unreachable frame at the end
  • Fixed - Audio decoder decoding unnecssary packets after backward step and seek
  • Fixed - Test media file fails to seek audio frame 0 after stepping backward

v1.2.1 (September 11, 2025)

  • Fixed - Audio "hiccup" when looping short media files
  • Fixed - Playback speed multipler type selection should persist
  • Fixed - Improved text description in several dialogs
  • Updated - Supported container file formats

v1.1.4 (August 14, 2025)

  • Added - Option to adjust default audio output buffer size
  • Added - Option to always show main menu bar on launch
  • Fixed - No audio playing when using Remote Desktop
  • Fixed - Pan/zoom choppy when using a Wacom
  • Fixed - Packet error during decoding

v1.1.2 (June 23, 2025)

  • Added - Disable idle display sleep during playback
  • Fixed - User encoded video is overly dark and washed out

v1.0.7 (Jan 28, 2025)

  • Fixed - Endless mouse scrub crash

v1.0.6 (Jan 20, 2025)

  • Fixed - Allow volume to go to 150%
  • Fixed - Dragging in hotkey preferences list displays the wrong shortcut

v1.0.5 (Jan 2, 2025)

  • Fixed - Popup menus may not display when using Wacom pen
  • Fixed - Transition to fullscreen can result in black screen until playback occurs

v1.0.1 (Dec 3, 2024)

  • Initial Release