v1.2.1

v1.2.1 has been RE-RELEASED on 7/12/2024 to fix a crash when saving movies.

Fixed codec support (libvpx, dav1d and Svt-Av1) which had gotten broken due
to new way of building FFmpeg.
Fixed scrubbing behavior to be smooth when there's no audio. If there's
audio the default behavior is to play the movie while scrubbing so audio
can be heard, unless Preferences->Playback->Scrub With Audio is off.
Fixed Settings->Gigabytes display resetting to the maximum memory even if the
setting was actually using much less.
Improved scrubbing behavior when audio is played and the mouse button is not
released.
Fixed Python ocioIcs(), ocioIcsList(), ocioView(), ocioViewList() to not
return paths with '/' at the beginning.
Made session (.mrv2s) files use OCIO names for default OCIO ics, view and
look.
Fixed HUD when saving images or movies not being correctly turned off.
Added View->OCIO Presets to store and retrieve OCIO configurations.
Fixed Background in OCIO Presets window on Windows 10.
Fixed VP9 encoder to use .mp4 muxer instead of .webm as it was failing.
Fixes STUDIOPATH variable so that it is used only with OCIO presets and
Path Mapping.
Fixed command-line seek value when starting a video.
Fixed reverse playback when starting the video from the middle.
Fixed rounding errors on reverse playback.
Improved packaging size on Windows.
Fixed crashing when saving movie files.
Added Image/Next and Image/Previous.

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