Add FPS test for object detection unit tests (realsenseai#15572)

Author: AviaAv

unit-tests/live/frames/pytest-fps-single-stream.py

@@ -107,3 +107,26 @@ def test_color_fps(test_device):
             failures.append(f"Color {requested_fps}Hz: got {fps:.1f}Hz")
 
     assert not failures, "Color FPS out of tolerance:\n" + "\n".join(failures)
+
+
+def test_object_detection_fps(test_device):
+    dev, ctx = test_device
+    camera_name = dev.get_info(rs.camera_info.name)
+
+    if "D585S" in camera_name or not any(model in camera_name for model in ["D555", "D585"]):
+        pytest.skip(f"Object detection is not expected on {camera_name}")
+
+    ps = dev.first_perception_sensor()
+
+    op = next((p for p in ps.profiles if p.stream_type() == rs.stream.object_detection), None)
+    assert op is not None, "Perception sensor has no object-detection profile"
+
+    requested_fps = op.fps()
+    fps_helper.TIME_TO_COUNT_FRAMES = 5
+    fps_dict = fps_helper.measure_fps({ps: [op]})
+    fps = fps_dict.get(op.stream_name(), 0)
+    log.info(f"Requested fps: {requested_fps:.1f} [Hz], actual fps: {fps:.1f} [Hz]")
+
+    delta_Hz = requested_fps * 0.05
+    assert fps >= requested_fps - delta_Hz and fps <= requested_fps + delta_Hz, \
+        f"Object Detection {requested_fps}Hz: got {fps:.1f}Hz"