@@ -30,6 +30,90 @@ namespace libcamera {
LOG_DEFINE_CATEGORY(CameraSensor);
+/**
+ * \struct CameraSensorInfo
+ * \brief Report the image sensor characteristics
+ *
+ * The structure reports image sensor characteristics used by IPA modules tune
+ * their algorithms based on the image sensor model currently in use and its
+ * configuration.
+ *
+ * The here reported information describe the sensor's intrinsics
+ * characteristics, such as its pixel array size and the sensor model name,
+ * as well as information relative to the currently configured mode, such as
+ * the produced image size and the bit depth of the requested image format.
+ *
+ * Instances of this structure are meant to be assembled by the CameraSensor
+ * class and its specialized subclasses by inspecting the sensor static
+ * properties as well as the currently configured sensor mode.
+ */
+
+/**
+ * \var CameraSensorInfo::name
+ * \brief The image sensor name
+ */
+
+/**
+ * \var CameraSensorInfo::bitsPerPixel
+ * \brief The bits per-pixel of the image format produced by the image sensor
+ */
+
+/**
+ * \var CameraSensorInfo::activeAreaSize
+ * \brief The size of the active pixel array area of the sensor
+ *
+ * \todo Reference the corresponding property
+ */
+
+/**
+ * \var CameraSensorInfo::outputImage
+ * \brief The output image cropping rectangle, with its top-left corner
+ * defined as the horizontal and vertical displacements from the top-left corner
+ * of the active pixel array, and its size defined as the output image size
+ */
+
+/**
+ * \var CameraSensorInfo::horizontalBinning
+ * \brief The binning factor, in the horizontal direction, of the image sensor
+ * configuration
+ */
+
+/**
+ * \var CameraSensorInfo::verticalBinning
+ * \brief The binning factor, in the vertical direction, of the image sensor
+ * configuration
+ */
+
+/**
+ * \var CameraSensorInfo::horizontalScaling
+ * \brief The horizontal scaling factor, calculated as the ratio between
+ * the active pixel array horizontal size and the horizontal size of the
+ * output image
+ *
+ * \todo Remove this field and compute the scaling factor in the IPA
+ */
+
+/**
+ * \var CameraSensorInfo::verticalScaling:
+ * \brief The vertical scaling factor, calculated as the ratio between
+ * the active pixel array vertical size and the vertical size of the
+ * output image
+ *
+ * \todo Remove this field and compute the scaling factor in the IPA
+ */
+
+/**
+ * \var CameraSensorInfo::noiseFactor
+ * \brief Scaling of the noise compared to the native sensor mode
+ *
+ * \todo Improve this description
+ */
+
+/**
+ * \var CameraSensorInfo::lineDuration
+ * \brief Line scan-out duration in nanoseconds
+ */
+
/**
* \class CameraSensor
* \brief A camera sensor based on V4L2 subdevices
@@ -24,6 +24,25 @@ class V4L2Subdevice;
struct V4L2SubdeviceFormat;
+struct CameraSensorInfo {
+ std::string name;
+
+ uint32_t bitsPerPixel;
+
+ Size activeAreaSize;
+ Rectangle outputImage;
+
+ uint8_t horizontalBinning;
+ uint8_t verticalBinning;
+
+ double horizontalScaling;
+ double verticalScaling;
+
+ double noiseFactor;
+
+ double lineDuration;
+};
+
class CameraSensor : protected Loggable
{
public:
Define the CameraSensorInfo structure that reports the current image sensor configuration. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> --- src/libcamera/camera_sensor.cpp | 84 +++++++++++++++++++++++++++ src/libcamera/include/camera_sensor.h | 19 ++++++ 2 files changed, 103 insertions(+)