+/**
+ * @brief Get the camera sensor rotation.
+ *
+ * This is needed on some mobile platforms to get the number of degrees the camera sensor
+ * is rotated relative to the screen.
+ *
+ * @param lc The linphone core related to the operation
+ * @return The camera sensor rotation in degrees (0 to 360) or -1 if it could not be retrieved
+ */
+int linphone_core_get_camera_sensor_rotation(LinphoneCore *lc);
+