From 8917c9e7ba642285ae33a7b9cee9cb4a22c76482 Mon Sep 17 00:00:00 2001 From: Jean-Michel Hautbois Date: Thu, 24 Feb 2022 12:33:46 +0100 Subject: ipa: rkisp1: agc: Add a histogram-based gain As for the IPU3, we can estimate the histogram of the luminance. The RkISP1 can estimate multiple ones, the R, G and B ones, the Y only one and a combination of RGB. The one we are interested by in AGC is the Y histogram. Use the hardware revision to determine the number of bins of the produced histogram. Signed-off-by: Jean-Michel Hautbois Tested-by: Peter Griffin Reviewed-by: Laurent Pinchart --- src/ipa/rkisp1/ipa_context.cpp | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/ipa/rkisp1/ipa_context.cpp') diff --git a/src/ipa/rkisp1/ipa_context.cpp b/src/ipa/rkisp1/ipa_context.cpp index c22e02d5..4a1ab058 100644 --- a/src/ipa/rkisp1/ipa_context.cpp +++ b/src/ipa/rkisp1/ipa_context.cpp @@ -71,6 +71,9 @@ namespace libcamera::ipa::rkisp1 { * \var IPASessionConfiguration::agc.maxAnalogueGain * \brief Maximum analogue gain supported with the configured sensor * + * \var IPASessionConfiguration::agc.measureWindow + * \brief AGC measure window + * * \var IPASessionConfiguration::hw * \brief RkISP1-specific hardware information * -- cgit v1.2.1