- Add OpenCV as default camera backend, nokhwa as optional alternative
- Make camera backends mutually exclusive via feature flags (opencv_camera, nokhwa_camera)
- Remove deprecated hardware_camera feature, use nokhwa_camera instead
- Add main thread camera initialization for macOS TCC authorization
- Add pre-opened capture storage via static Mutex for async compatibility
- Add pixel format conversion utilities (pixel_convert.rs)
- Update all cfg guards from hardware_camera to nokhwa_camera
macOS requires camera authorization requests on main thread. OpenCV's
VideoCapture::new() is now called before tokio runtime starts, with
the handle stored for later use by async code.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
