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path: root/plugins/motion_capture/device.py
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2026-08-17Fix motion capture UI freezes: throttling, async camera open/scan, stale pollChristian Kolset
Several compounding freeze sources in plugins/motion_capture/: - tracker.py: _run_real had no frame-rate cap independent of the camera's configured fps (up to 120fps/2560x1440 was possible), and no bound on consecutive failed reads — a camera that "opens" (cv2 isOpened() can lie, seen with Windows MSMF/obsensor) but never actually delivers frames would get hammered forever. Added a 20Hz processing cap, a real test-read before committing to a camera, and a give-up-after-30-failures fallback to simulation. - tracker.py/device.py: cv2.VideoCapture() opening a real camera is a slow, blocking call — CameraTracker.start() used to do this synchronously on the caller's thread, which froze the whole app when ProfileManager.apply() called it during profile load. Now runs on the background thread; status reporting (CameraDevice) moved to an on_result callback since the caller can no longer learn the outcome synchronously. - window.py: the Camera View preview ran a 30Hz GUI-thread timer doing a full-frame copy + QImage/QPixmap rebuild every tick unconditionally (no visibility check) — dropped to 10Hz and skips entirely when hidden. Camera enumeration (list_cameras(), up to 8 sequential cv2.VideoCapture probes) also ran inline in the window constructor, blocking it open the same way camera_panel.py's CameraScanThread already avoided for the Add Device dialog — moved to the same async pattern here. config_window.py: separately, ConfigWindow._dev_poll (device status label refresh) was stopped in closeEvent and never restarted, since MainWindow reuses the same ConfigWindow instance across opens — invisible before because connect() was synchronous, but with the above change a device can sit in CONNECTING for a while, and a stale poll made that look stuck forever after reopening the window. Restart it in showEvent. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-07-29Add editable device display name, persist it across profile save/loadChristian Kolset
DeviceInfo.name existed but was hardcoded per device type and never operator-editable. Adds a Display Name field to Add Device and makes the Info-tab Name field in the device config dialog editable, and threads the name through get_save_config()/ProfileManager.apply() so a custom name survives a .labdaq save/reload instead of reverting to the type default. Name is applied post-construction rather than as a constructor kwarg, since no device factory declares a "name" param. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-06-09Motion capture: profile support, FPS config, persistent tracking, window stateChristian Kolset
Profile integration: - CameraDevice.get_save_config() serialises camera_index, simulate, resolution, fps — cameras now persist in .labdaq profiles - ProfileManager.register/unregister_device_factory() lets plugins register their device classes for profile restoration without core → plugin dependency - MotionCapturePlugin registers CameraDevice factory on load/unload Camera configuration: - Add Frame Rate combo to CameraPanel (Default/15/24/30/60/120 fps) defaults to 30 fps; flows through to CAP_PROP_FPS on connect - tracker.start() accepts fps param alongside existing resolution Tracking persistence: - CameraTracker.is_running() — checks thread alive state - MotionCaptureWindow initialises _connected from tracker.is_running() so reopening the window resumes the live feed without restarting the camera or losing the active tracking state Window state: - Plugin saves px_per_mm + camera_idx when window closes - Reopened window restores saved values and syncs mode/shape UI from tracker state via restore_ui_state() (signals blocked to avoid resetting tracker) - Window type changed to Qt.WindowType.Window for independent close button on all Linux WMs Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-09Upgrade motion capture: template matching, frame-freeze selection, resolutionChristian Kolset
Tracking: - Add "template" mode (default) using snapshot + shape-masked matchTemplate - Add "csrt" mode as alternative for texture-rich targets - set_roi_rect(x, y, w, h, frame_rgb) initialises from exact selection rect - set_roi() delegates to set_roi_rect (centred square, backwards-compat) - start() accepts resolution=(w, h) to set camera capture resolution Selection UX: - Replace QLabel feed with FrameSelector widget (custom QWidget) - "Click to Track" freezes frame; user scrolls to zoom (anchored to cursor), right-drags to pan, left-drags to draw rubber-band selection - Shape preview: rectangle or inscribed ellipse depending on mode - "Confirm Selection" extracts template from frozen frame and starts tracking - "Clear" cancels selection or clears active tracking Configuration: - CameraPanel adds Resolution combo (Default / 640×480 / 720p / 1080p / 1440p) - CameraDevice stores and forwards resolution to tracker.start() - Template Match listed first in Mode combo; shape combo hidden for CSRT Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-04Redesign motion capture plugin as Camera device typeChristian Kolset
Plugin now registers a "Camera" option in the Add Device dialog on load (removes it on unload) instead of auto-creating a single device. - camera_panel.py (new): CameraPanel with CameraScanThread that probes OpenCV indices 0–5, lists found cameras with resolution, shows "No cameras detected" when none available, simulation checkbox. build_device() returns CameraDevice for the selected index. - device.py: rewrite MotionCaptureDevice → CameraDevice. Each instance owns its own CameraTracker created in connect(). Status is CONNECTED or SIMULATED based on tracker.simulated. get_config_widget() shows source/status and an "Open Camera View" button that launches the existing MotionCaptureWindow for that device's tracker. Backward-compat alias MotionCaptureDevice = CameraDevice kept for saved profiles. - plugin.py: simplified to on_load/_PANELS registration + pixel_to_mm filter. No auto-devices, no toolbar button, no settings widget. Camera data flows through the standard Device → Signal → Channel → Plot pipeline like any other device. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-03Added Motion Capture pluginChristian Kolset
Tracks a user-selected point via webcam (OpenCV CSRT tracker) and streams x_pos / y_pos pixel coordinates as live channels into the acquisition pipeline. Falls back to a Lissajous figure simulation when opencv-python is not installed, so the plugin works immediately without hardware. - tracker.py: background thread, real camera + sim modes, thread-safe API - device.py: BaseDevice reading x/y from tracker, wires into engine - filter.py: custom pixel_to_mm filter (registered in FILTER_CLASSES) - window.py: floating tool window, live feed, click-to-track ROI selection - plugin.py: LabPlugin wiring all pieces together, toolbar button, settings widget, profile save/restore Also: PluginAction.button_ref_callback lets plugins store a ref to their toolbar button so they can uncheck it when their window closes. opencv-python install note added to requirements.txt. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>