ipa: ipu3: Use libcamera::utils::Duration helper class for durations

std::chrono::Duration is provided quite conveniently by
libcamera::utils::Duration wrapper. Port IPAIPU3 to use that
for duration-type entities (such as exposure time), such that
it becomes consistent with rest of the codebase.

The commit doesn't introduce any functional changes.

Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>

1 files changed, 10 insertions, 6 deletions

diff --git a/src/ipa/ipu3/ipu3_agc.h b/src/ipa/ipu3/ipu3_agc.h
index f3d40557..a5a78233 100644
--- a/src/ipa/ipu3/ipu3_agc.h
+++ b/src/ipa/ipu3/ipu3_agc.h
@@ -14,6 +14,8 @@
 
 #include <libcamera/geometry.h>
 
+#include "libcamera/internal/utils.h"
+
 #include "libipa/algorithm.h"
 
 namespace libcamera {
@@ -22,6 +24,8 @@ struct IPACameraSensorInfo;
 
 namespace ipa::ipu3 {
 
+using utils::Duration;
+
 class IPU3Agc : public Algorithm
 {
 public:
@@ -51,13 +55,13 @@ private:
 	double iqMean_;
 	double gamma_;
 
-	double lineDuration_;
-	double maxExposureTime_;
+	Duration lineDuration_;
+	Duration maxExposureTime_;
 
-	double prevExposure_;
-	double prevExposureNoDg_;
-	double currentExposure_;
-	double currentExposureNoDg_;
+	Duration prevExposure_;
+	Duration prevExposureNoDg_;
+	Duration currentExposure_;
+	Duration currentExposureNoDg_;
 };
 
 } /* namespace ipa::ipu3 */