Shotcut 21.08.29

What's new in this version:

New:
Added:
- support for WebP export with presets for still sequence and animation
- Properties > Measure Video Quality... using VMAF
- a new video filter GPS Text (contributed by Daniel F)
- a new video filter Reflect
- a new Deband video filter (contributed by Austin B)
- a warning dialog before File > Export Frame... from a proxy file
- support for keyframes to Mask: Simple Shape > Rotation
- support for the operating system clipboard when copying and pasting filters
- support for the operating system clipboard when cut, copy, paste, overwrite or append a clip
- a dialog when Timeline > Track Operations > Insert Track on the top audio track to choose audio or video
- handles to the sides of the rectangle on-screen control (VUI) (contributed by TRA)

Changed:
- the storage for thumbnails and waveforms to use files instead of database
- Time Remap to limit input values to the maximum duration of the clip
- to set the file date on proxy files to match original file

Improved:
- reliability of Time Remap status/feedback info
- the speed setting in the Time Remap filter with an option to either modify or lock the input time
- player grid display and snapping when zoomed
- image sequence if there is a numeric filename discontinuity or rollover to > 0

Fixed:
- possible crash when using Audio Waveform Visualization filter
- Mask: From File > Custom... might lose track of its file
- Text: Simple > File date broken in v21.05
- Timer filter's new Speed parameter not scaling Duration
- a possible crash reading a YUV 4:2:2 uncompressed video
- some clips' duration in project XML saved in frame units instead of seconds
- Timer start and end buttons when filter in point is set
- quality/rate control with libx264rgb in Export > Codec
- undo simple keyframes in Size, Position & Rotate turned on advanced keyframes
- undo followed by redo when trimming clips on Timeline may not be correct
- a crash moving multiple clips to the beginning with Ripple All Tracks on
- changing Time Remap > Enable pitch compensation in disables Zoom keyframe Values
- file paths with special characters not working in filters such as Mask: From File
- exported HEVC MP4 and MOV files are not playable with macOS QuickTime Player or iOS
- Properties > Reset for an image
- a possible crash when a transition is removed during trimming on the Timeline
- keyframes may be dragged past another
- Time Remap filter may cause image artifact when using Export > Parallel processing
- Properties > Extract Sub-clip... on GoPro videos or other videos with non-muxable data track
- Stabilize video gives incorrect results after splitting or trimming clip
- a crash when dragging multiple clips with variable frame rate to timeline
- the timeline playhead could go beyond the end of the timeline
- opening a project starts paused on the second frame instead of the first