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ipa: rkisp1: agc: Set measurement window to full frame

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With the availability of metering modes and the corresponding weights,
there is a flexible way of defining the area that gets taken into
account when AEGC is calculated. There is no need to reduce that window
to an arbitrary region anymore. If need arises we can make this
parameter user configurable or add a control for it.

Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Stefan Klug 2025-03-19 17:01:37 +01:00
parent 0539e88679
commit 2c66de06a0
1 changed files with 4 additions and 8 deletions
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12
src/ipa/rkisp1/algorithms/agc.cpp
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@ -193,14 +193,10 @@ int Agc::configure(IPAContext &context, const IPACameraSensorInfo &configInfo)
context.activeState.agc.minFrameDuration = std::chrono::microseconds(frameDurationLimits.min().get<int64_t>());
context.activeState.agc.maxFrameDuration = std::chrono::microseconds(frameDurationLimits.max().get<int64_t>());
/*
* Define the measurement window for AGC as a centered rectangle
* covering 3/4 of the image width and height.
*/
context.configuration.agc.measureWindow.h_offs = configInfo.outputSize.width / 8;
context.configuration.agc.measureWindow.v_offs = configInfo.outputSize.height / 8;
context.configuration.agc.measureWindow.h_size = 3 * configInfo.outputSize.width / 4;
context.configuration.agc.measureWindow.v_size = 3 * configInfo.outputSize.height / 4;
context.configuration.agc.measureWindow.h_offs = 0;
context.configuration.agc.measureWindow.v_offs = 0;
context.configuration.agc.measureWindow.h_size = configInfo.outputSize.width;
context.configuration.agc.measureWindow.v_size = configInfo.outputSize.height;
setLimits(context.configuration.sensor.minExposureTime,
context.configuration.sensor.maxExposureTime,