update filter, flow ema 0.5 + med 3

src/orisys/finger/runtime.py

@@ -293,6 +293,15 @@ class FingerRuntime:
         capture = capture_source.cap
 
         sensor = Sensor("external", config_name=config, verbose=verbose, mirror=mirror)
+        if not is_live_camera(video):
+            # File playback: wall-clock cadence is not signal time, so pin the
+            # force-filter design rate to the configured camera fps.
+            try:
+                fps = float(geometry.config.get("camera", {}).get("fps", 0.0) or 0.0)
+            except (TypeError, ValueError):
+                fps = 0.0
+            if fps > 0:
+                sensor.configure(lowpass_sample_rate_hz=fps)
         frame_processor = FrameUnwarper(
             domain.remap,
             camera_matrix=geometry.source_K if geometry.dist_coeffs is not None else None,