1 files changed, 3 insertions, 0 deletions
diff --git a/src/ipa/libipa/camera_sensor_helper.h b/src/ipa/libipa/camera_sensor_helper.h
index 0d99073b..ac276e27 100644
--- a/src/ipa/libipa/camera_sensor_helper.h
+++ b/src/ipa/libipa/camera_sensor_helper.h
@@ -10,6 +10,7 @@
 #include <stdint.h>
 
 #include <memory>
+#include <optional>
 #include <string>
 #include <vector>
 
@@ -25,6 +26,7 @@ public:
 	CameraSensorHelper() = default;
 	virtual ~CameraSensorHelper() = default;
 
+	std::optional<int16_t> blackLevel() const { return blackLevel_; }
 	virtual uint32_t gainCode(double gain) const;
 	virtual double gain(uint32_t gainCode) const;
 
@@ -51,6 +53,7 @@ protected:
 		AnalogueGainExpConstants exp;
 	};
 
+	std::optional<int16_t> blackLevel_;
 	AnalogueGainType gainType_;
 	AnalogueGainConstants gainConstants_;