new camera handling concept

core/opencv_adapter.py

@@ -0,0 +1,34 @@
+
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+
+class OpenCVControlSource(BaseControlSource):
+    def __init__(self, cap: cv2.VideoCapture, parent=None):
+        super().__init__(parent)
+        self.cap = cap
+
+    def set_parameter(self, name, value):
+        prop_id = getattr(cv2, name, None)
+        if prop_id is None:
+            self.errorOccurred.emit(f"Nieznany parametr {name}")
+            return
+        self.cap.set(prop_id, value)
+        self.parameterChanged.emit(name, value)
+
+    def get_parameter(self, name):
+        prop_id = getattr(cv2, name, None)
+        if prop_id is None:
+            self.errorOccurred.emit(f"Nieznany parametr {name}")
+            return None
+        return self.cap.get(prop_id)
+
+    def list_parameters(self):
+        return {
+            "CAP_PROP_BRIGHTNESS": self.cap.get(cv2.CAP_PROP_BRIGHTNESS),
+            "CAP_PROP_CONTRAST": self.cap.get(cv2.CAP_PROP_CONTRAST),
+            "CAP_PROP_SATURATION": self.cap.get(cv2.CAP_PROP_SATURATION),
+            "CAP_PROP_GAIN": self.cap.get(cv2.CAP_PROP_GAIN),
+            "CAP_PROP_EXPOSURE": self.cap.get(cv2.CAP_PROP_EXPOSURE),
+        }