libcamera  v0.3.2+116-83c5ad0f
Supporting cameras in Linux since 2019
Public Attributes | List of all members
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. More...
 
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

◆ agc

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

agc libcamera::ipa::ipu3::IPAActiveState::gain

Analogue gain multiplier.

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

◆ gammaCorrection

toneMapping 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: