MacOS ARM: ld-analyse quirks

[bradriley]

Checklist

• [X] I have searched the issues page for any duplicate issues open or closed and confirmed that this bug has not been reported before.
• [x] I have tested the issue with the current build.
• [X] I have attached log files, uploaded sample data, and commands used so that the issue can be easily reproduced by the developers.

Bug Description

See below...

Steps to Reproduce

1. ld-analyse -> open any .TBC on MacOS (ARM)

Expected Behavior

(Match with Linux & Windows behaviour)

Actual Behavior

1. Y+C, C view "Source" mode: chroma dots are wrong. (At least with NTSC; diagonal lines rather than dots.) "Reverse Field Order" fixes the dots, but then the luma field order is wrong.
2. Can't scroll the seek bar using arrow keys like on Linux & Windows.

Environment

• Decode version: 1ed8548 [latest]
• Operating System: MacOS Big Sur
• Hardware Used: M2 Pro Mac Mini

Additional Information