From 93802f600cf4c3bf15c9d044b980927615e800f4 Mon Sep 17 00:00:00 2001 From: Jean-Michel Hautbois Date: Wed, 18 Aug 2021 17:54:03 +0200 Subject: ipa: ipu3: Move IPU3 agc into algorithms Now that the interface is properly used by the AGC class, move it into ipa::ipu3::algorithms and let the loops do the calls. As we need to exchange the exposure_ and gain_ by passing them through the FrameContext, use the calculated values in setControls() function to ease the reading. Signed-off-by: Jean-Michel Hautbois Reviewed-by: Kieran Bingham Reviewed-by: Laurent Pinchart --- src/ipa/ipu3/algorithms/agc.h | 60 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 src/ipa/ipu3/algorithms/agc.h (limited to 'src/ipa/ipu3/algorithms/agc.h') diff --git a/src/ipa/ipu3/algorithms/agc.h b/src/ipa/ipu3/algorithms/agc.h new file mode 100644 index 00000000..1739d2fd --- /dev/null +++ b/src/ipa/ipu3/algorithms/agc.h @@ -0,0 +1,60 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2021, Ideas On Board + * + * agc.h - IPU3 AGC/AEC control algorithm + */ +#ifndef __LIBCAMERA_IPU3_ALGORITHMS_AGC_H__ +#define __LIBCAMERA_IPU3_ALGORITHMS_AGC_H__ + +#include + +#include + +#include + +#include "algorithm.h" + +namespace libcamera { + +struct IPACameraSensorInfo; + +namespace ipa::ipu3::algorithms { + +using utils::Duration; + +class Agc : public Algorithm +{ +public: + Agc(); + ~Agc() = default; + + int configure(IPAContext &context, const IPAConfigInfo &configInfo) override; + void process(IPAContext &context, const ipu3_uapi_stats_3a *stats) override; + +private: + void processBrightness(const ipu3_uapi_stats_3a *stats); + void filterExposure(); + void lockExposureGain(uint32_t &exposure, double &gain); + + struct ipu3_uapi_grid_config aeGrid_; + + uint64_t frameCount_; + uint64_t lastFrame_; + + double iqMean_; + + Duration lineDuration_; + Duration maxExposureTime_; + + Duration prevExposure_; + Duration prevExposureNoDg_; + Duration currentExposure_; + Duration currentExposureNoDg_; +}; + +} /* namespace ipa::ipu3::algorithms */ + +} /* namespace libcamera */ + +#endif /* __LIBCAMERA_IPU3_ALGORITHMS_AGC_H__ */ -- cgit v1.2.1