NekoCWD/libcamera
NekoCWD/libcamera
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages 7 Wiki Activity Actions

ipa: ipu3: agc: Introduce lineDuration in IPASessionConfiguration

Browse source 
Instead of having a local cached value for line duration, store it in
the IPASessionConfiguration::sensor structure.
While at it, configure the default analogue gain and shutter speed to
controlled fixed values.

The latter is set to be 10ms as it will in most cases be close to the
one needed, making the AGC faster to converge.

Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
This commit is contained in:
Jean-Michel Hautbois 2022-02-24 16:11:12 +01:00 • committed by Umang Jain
parent e3900d1bf9
commit b5d2adbeab
5 changed files with 42 additions and 27 deletions
Download patch file Download diff file Expand all files Collapse all files

3
src/ipa/ipu3/algorithms/agc.h
View file

@ -34,7 +34,7 @@ private:
double measureBrightness(const ipu3_uapi_stats_3a *stats,
const ipu3_uapi_grid_config &grid) const;
utils::Duration filterExposure(utils::Duration currentExposure);
void computeExposure(IPAFrameContext &frameContext, double yGain,
void computeExposure(IPAContext &context, double yGain,
double iqMeanGain);
double estimateLuminance(IPAFrameContext &frameContext,
const ipu3_uapi_grid_config &grid,
@ -43,7 +43,6 @@ private:
uint64_t frameCount_;
utils::Duration lineDuration_;
utils::Duration minShutterSpeed_;
utils::Duration maxShutterSpeed_;