libcamera v0.5.1
Supporting cameras in Linux since 2019
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libcamera::ipa::ipu3::IPAActiveState Struct Reference

The active state of the IPA algorithms. More...

Public Attributes

struct { 
   uint32_t   focus 
   double   maxVariance 
   bool   stable 
af
 Context for the Automatic Focus algorithm.
struct { 
   uint32_t   exposure 
   double   gain 
   uint32_t   constraintMode 
   uint32_t   exposureMode 
agc
 Context for the Automatic Gain Control algorithm.
struct { 
   struct { 
      double   red 
      double   green 
      double   blue 
   }   gains
   double   temperatureK 
awb
 Context for the Automatic White Balance algorithm.
struct { 
   double   gamma 
   struct ipu3_uapi_gamma_corr_lut   gammaCorrection 
toneMapping
 Context for ToneMapping and Gamma control.

Detailed Description

The active state of the IPA algorithms.

The IPA is fed with the statistics generated from the latest frame captured by the hardware. The statistics are then processed by the IPA algorithms to compute ISP parameters required for the next frame capture. The current state of the algorithms is reflected through the IPAActiveState to store the values most recently computed by the IPA algorithms.

Member Data Documentation

◆ [struct]

struct { ... } libcamera::ipa::ipu3::IPAActiveState::agc

Context for the Automatic Gain Control algorithm.

The exposure and gain determined are expected to be applied to the sensor at the earliest opportunity.

◆ gain

double libcamera::ipa::ipu3::IPAActiveState::gain

Analogue gain multiplier.

The gain should be adapted to the sensor specific gain code before applying.

◆ gammaCorrection

struct ipu3_uapi_gamma_corr_lut libcamera::ipa::ipu3::IPAActiveState::gammaCorrection

Per-pixel tone mapping implemented as a LUT.

The LUT structure is defined by the IPU3 kernel interface. See <linux/intel-ipu3.h> struct ipu3_uapi_gamma_corr_lut for further details.


The documentation for this struct was generated from the following files: