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-rw-r--r--src/ipa/rpi/cam_helper/cam_helper_imx708.cpp25
1 files changed, 24 insertions, 1 deletions
diff --git a/src/ipa/rpi/cam_helper/cam_helper_imx708.cpp b/src/ipa/rpi/cam_helper/cam_helper_imx708.cpp
index 641ba18f..dce39cd5 100644
--- a/src/ipa/rpi/cam_helper/cam_helper_imx708.cpp
+++ b/src/ipa/rpi/cam_helper/cam_helper_imx708.cpp
@@ -21,6 +21,8 @@ using namespace RPiController;
using namespace libcamera;
using libcamera::utils::Duration;
+using namespace std::literals::chrono_literals;
+
namespace libcamera {
LOG_DECLARE_CATEGORY(IPARPI)
}
@@ -56,7 +58,8 @@ public:
int &vblankDelay, int &hblankDelay) const override;
bool sensorEmbeddedDataPresent() const override;
double getModeSensitivity(const CameraMode &mode) const override;
- unsigned int hideFramesModeSwitch() const override { return 1; } // seems to be required for HDR
+ unsigned int hideFramesModeSwitch() const override;
+ unsigned int hideFramesStartup() const override;
private:
/*
@@ -225,6 +228,26 @@ double CamHelperImx708::getModeSensitivity(const CameraMode &mode) const
return (mode.width > 2304) ? 1.0 : 2.0;
}
+unsigned int CamHelperImx708::hideFramesModeSwitch() const
+{
+ /*
+ * We need to drop the first startup frame in HDR mode.
+ * Unfortunately the only way to currently determine if the sensor is in
+ * the HDR mode is to match with the resolution and framerate - the HDR
+ * mode only runs upto 30fps.
+ */
+ if (mode_.width == 2304 && mode_.height == 1296 &&
+ mode_.minFrameDuration > 1.0s / 32)
+ return 1;
+ else
+ return 0;
+}
+
+unsigned int CamHelperImx708::hideFramesStartup() const
+{
+ return hideFramesModeSwitch();
+}
+
void CamHelperImx708::populateMetadata(const MdParser::RegisterMap &registers,
Metadata &metadata) const
{