libcamera/vivid.git - libcamera pipeline handler for VIVID

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/* SPDX-License-Identifier: LGPL-2.1-or-later */ /* * Copyright (C) 2021, Ideas On Board * * algorithm.cpp - IPA control algorithm interface */ #include "algorithm.h" /** * \file algorithm.h * \brief Algorithm common interface */ namespace libcamera { namespace ipa { /** * \class Algorithm * \brief The base class for all IPA algorithms * \tparam Module The IPA module type for this class of algorithms * * The Algorithm class defines a standard interface for IPA algorithms * compatible with the \a Module. By abstracting algorithms, it makes possible * the implementation of generic code to manage algorithms regardless of their * specific type. * * To specialize the Algorithm class template, an IPA module shall specialize * the Module class template with module-specific context and configuration * types, and pass the specialized Module class as the \a Module template * argument. */ /** * \typedef Algorithm::Module * \brief The IPA module type for this class of algorithms */ /** * \fn Algorithm::init() * \brief Initialize the Algorithm with tuning data * \param[in] context The shared IPA context * \param[in] tuningData The tuning data for the algorithm * * This function is called once, when the IPA module is initialized, to * initialize the algorithm. The \a tuningData YamlObject contains the tuning * data for algorithm. * * \return 0 if successful, an error code otherwise */ /** * \fn Algorithm::configure() * \brief Configure the Algorithm given an IPAConfigInfo * \param[in] context The shared IPA context * \param[in] configInfo The IPA configuration data, received from the pipeline * handler * * Algorithms may implement a configure operation to pre-calculate * parameters prior to commencing streaming. * * Configuration state may be stored in the IPASessionConfiguration structure of * the IPAContext. * * \return 0 if successful, an error code otherwise */ /** * \fn Algorithm::prepare() * \brief Fill the \a params buffer with ISP processing parameters for a frame * \param[in] context The shared IPA context * \param[in] frame The frame context sequence number * \param[in] frameContext The FrameContext for this frame * \param[out] params The ISP specific parameters * * This function is called for every frame when the camera is running before it * is processed by the ISP to prepare the ISP processing parameters for that * frame. * * Algorithms shall fill in the parameter structure fields appropriately to * configure the ISP processing blocks that they are responsible for. This * includes setting fields and flags that enable those processing blocks. */ /** * \fn Algorithm::queueRequest() * \brief Provide control values to the algorithm * \param[in] context The shared IPA context


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