On macOS versions before Sonoma (14.0), SCStreamConfiguration does not
support the captureMicrophone/microphoneCaptureDeviceID selectors. The
native helper was throwing a fatal error, blocking recording entirely
when microphone was enabled.
Now the Swift helper logs MICROPHONE_CAPTURE_UNAVAILABLE and continues
capture without microphone. The Node handler detects this signal and
returns microphoneFallbackRequired to the renderer, which starts a
browser-side MediaRecorder capturing the mic via getUserMedia. On stop,
the audio blob is saved as a .mic.webm sidecar alongside the native
recording, where the existing companion audio detection picks it up.
Fixes: 'Native microphone capture is unavailable on this macOS/Xcode
runtime' error on older macOS versions.
The HUD overlay snaps back to the centered default position whenever
recording starts because the idle-to-recording UI swap triggers a
resize, and applyHudOverlayBounds() always recomputes a centered
location. This is disruptive when the user has intentionally moved
the bar out of the way before a timed recording.
Remember the position after a drag ends and reuse it for subsequent
bounds updates, clamped to the current work area. The position resets
on app restart or when displays change so the bar cannot get stranded
off-screen.
- Integrate extension render hooks into frameRenderer and modernFrameRenderer
- Add modernFrameRenderer for compositing extensions during export
- Wire extension audio processing in audioEncoder
- Support extension hooks in gif and video export paths
- Extension loader with manifest validation, ID sanitization, and path traversal protection
- Permission-gated runtime API (render, cursor, audio, timeline, ui, assets, export)
- Extension host with lifecycle management (activate/deactivate)
- Marketplace client for browsing, downloading, and installing extensions
- Extension Manager UI panel with enable/disable/uninstall
- IPC bridge for extension discovery, management, and marketplace operations
- Proxy guard on window.electronAPI to block extension access to privileged IPC
- Zip-slip protection via post-extraction directory traversal validation
- Safe PowerShell invocation for Windows zip extraction (no string interpolation)
- File URL resolution with path escape prevention
- Remove dead time= progress matching (no decode pass = no progress output)
- Remove stale comments about ffmpeg success/fallback behavior
- Lower timeout from 30s to 5s (header read is near-instant)
- Drop maxBuffer override (minimal stderr output now)
- Add -hide_banner to reduce stderr noise
- Remove -f null - from probeMediaDurationSeconds() ffmpeg args
so the command always exits non-zero (no output file specified)
- Without -f null -, ffmpeg exits code 1 and stderr lands in the
catch block where Duration is parsed, fixing the bug where
duration returned 0 on valid recordings
- probeMediaDurationSeconds returning 0 caused the
videoDuration > 0 gate to skip all audio sync correction,
leaving system audio misaligned in the final recording
- Add rowId to allRegionSpans so collision detection only considers
siblings on the same timeline row
- Split clampToNeighbours into clampResizedSpanToNeighbours and
clampDraggedSpanToNeighbours for resize vs drag semantics
- Preserve original clip duration on drag (pure translation) to prevent
pixel-to-ms rounding drift at different zoom levels
The analytical velocity fix makes the spring settle more precisely,
slightly increasing frame count to convergence. Relax threshold
from 120 to 400 frames.
Use analytical velocity (closed-form derivative) instead of frame-to-frame
finite differences for spring state propagation. Add overshoot clamp for
overdamped springs (ζ ≥ 1) to prevent counter-oscillation when the zoom
easing target reverses direction mid-animation.
Align decoded frame timestamps with the media timeline so trimmed exports do not end early on recordings whose video stream starts after the container timeline.
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