Track: 0.21.0 on macOS (desktop build, recording formats, VideoToolbox) #786

What this tracks

Nothing in 0.21.0 has been built or run on macOS. The new features lean on parts that differ there, so each needs a look on a real Mac before the release.

To check

• The desktop app builds (scripts/macos/make-app.sh, make-dmg.sh) with the 0.21.0 Rust shell, and starts on Apple Silicon and Intel.
• Save dialog and Show in folder after a Performance export (reveal_saved in desktop/src-tauri/src/main.rs).
• Camera and microphone permission prompts when Performance asks for them. This branch adds desktop/src-tauri/src/mediaperm.rs, Info.plist usage descriptions and Entitlements.plist (verified in the diff against v0.20.0); none of it has run on a Mac.
• Recording in WKWebView: which container and codec MediaRecorder produces for a Performance take, and whether the server can render it.
• The shipped macOS ffmpeg: which H.264 encoders it has, and whether VideoToolbox passes scripts/encoder_matrix.py.
• A full Performance take and export: picture and sound in sync, and the file plays in QuickTime.
• Karaoke Mode fullscreen in WKWebView (the Fullscreen API may be refused; a layer over the window is the fallback).
• The Mode menu, the Stems popover and Settings at the macOS default window size.
• The Gatekeeper callout is first in the release notes.

Constraints

• A change to the Rust shell changes the binary, which desktop-update-gate treats as a reason for a full download. A uv.lock change does the same.
• Anything visible needs a Guide entry and the sentence in all ten tables of i18n.js.

Verified by

Not verified. No Mac was available in the pass that wrote this list.

Related

#642 and #437 (closed) describe earlier macOS ffmpeg and Apple Silicon problems.