c20ca6587d
Extend the Algorithm::process() function with a metadata control list, to be filled by individual algorithms with frame metadata. Update the rkisp1 and ipu3 IPA modules accordingly, and drop the dead code in the IPARkISP1::prepareMetadata() function while at it. This only creates the infrastructure, filling metadata in individual algorithms will be handled separately. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
73 lines
2 KiB
C++
73 lines
2 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2021, Red Hat
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*
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* af.h - IPU3 Af algorithm
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*/
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#pragma once
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#include <linux/intel-ipu3.h>
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#include <libcamera/base/utils.h>
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#include <libcamera/geometry.h>
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#include "algorithm.h"
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namespace libcamera {
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namespace ipa::ipu3::algorithms {
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class Af : public Algorithm
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{
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/* The format of y_table. From ipu3-ipa repo */
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typedef struct __attribute__((packed)) y_table_item {
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uint16_t y1_avg;
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uint16_t y2_avg;
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} y_table_item_t;
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public:
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Af();
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~Af() = default;
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int configure(IPAContext &context, const IPAConfigInfo &configInfo) override;
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void prepare(IPAContext &context, const uint32_t frame,
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IPAFrameContext &frameContext,
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ipu3_uapi_params *params) override;
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void process(IPAContext &context, const uint32_t frame,
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IPAFrameContext &frameContext,
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const ipu3_uapi_stats_3a *stats,
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ControlList &metadata) override;
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private:
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void afCoarseScan(IPAContext &context);
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void afFineScan(IPAContext &context);
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bool afScan(IPAContext &context, int min_step);
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void afReset(IPAContext &context);
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bool afNeedIgnoreFrame();
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void afIgnoreFrameReset();
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double afEstimateVariance(Span<const y_table_item_t> y_items, bool isY1);
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bool afIsOutOfFocus(IPAContext &context);
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/* VCM step configuration. It is the current setting of the VCM step. */
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uint32_t focus_;
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/* The best VCM step. It is a local optimum VCM step during scanning. */
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uint32_t bestFocus_;
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/* Current AF statistic variance. */
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double currentVariance_;
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/* The frames are ignore before starting measuring. */
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uint32_t ignoreCounter_;
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/* It is used to determine the derivative during scanning */
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double previousVariance_;
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/* The designated maximum range of focus scanning. */
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uint32_t maxStep_;
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/* If the coarse scan completes, it is set to true. */
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bool coarseCompleted_;
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/* If the fine scan completes, it is set to true. */
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bool fineCompleted_;
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};
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} /* namespace ipa::ipu3::algorithms */
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} /* namespace libcamera */
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