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path: root/src/py/examples/simple-cam.py

Age	Commit message (Collapse)	Author
2023-05-30	py: Use exceptions instead of returning error codes	Tomi Valkeinen
	We have multiple methods which return an error code, mimicking the C++ API. Using exceptions is more natural in the Python API, so change all those methods to raise an Exception instead. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2022-08-19	py: Switch to non-blocking eventfd	Tomi Valkeinen
	Blocking wait can be easily implemented on top in Python, so rather than supporting only blocking reads, or supporting both non-blocking and blocking reads, let's support only non-blocking reads. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2022-06-08	py: examples: Add simple-cam.py	Tomi Valkeinen
	Add a Python version of simple-cam from: https://git.libcamera.org/libcamera/simple-cam.git Let's keep this in the libcamera repository until the Python API has stabilized a bit more, and then we could move this to the simple-cam repo. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

span class="hl com"> * Copyright (C) 2021-2022, Ideas On Board * * blc.cpp - RkISP1 Black Level Correction control */ #include "blc.h" #include <libcamera/base/log.h> #include "libcamera/internal/yaml_parser.h" /** * \file blc.h */ namespace libcamera { namespace ipa::rkisp1::algorithms { /** * \class BlackLevelCorrection * \brief RkISP1 Black Level Correction control * * The pixels output by the camera normally include a black level, because * sensors do not always report a signal level of '0' for black. Pixels at or * below this level should be considered black. To achieve that, the RkISP BLC * algorithm subtracts a configurable offset from all pixels. * * The black level can be measured at runtime from an optical dark region of the * camera sensor, or measured during the camera tuning process. The first option * isn't currently supported. */ LOG_DEFINE_CATEGORY(RkISP1Blc) BlackLevelCorrection::BlackLevelCorrection() : tuningParameters_(false) { } /** * \copydoc libcamera::ipa::Algorithm::init */ int BlackLevelCorrection::init([[maybe_unused]] IPAContext &context, const YamlObject &tuningData) { blackLevelRed_ = tuningData["R"].get<int16_t>(256); blackLevelGreenR_ = tuningData["Gr"].get<int16_t>(256); blackLevelGreenB_ = tuningData["Gb"].get<int16_t>(256); blackLevelBlue_ = tuningData["B"].get<int16_t>(256); tuningParameters_ = true; LOG(RkISP1Blc, Debug) << "Black levels: red " << blackLevelRed_ << ", green (red) " << blackLevelGreenR_ << ", green (blue) " << blackLevelGreenB_ << ", blue " << blackLevelBlue_; return 0; } /** * \copydoc libcamera::ipa::Algorithm::prepare */ void BlackLevelCorrection::prepare([[maybe_unused]] IPAContext &context, const uint32_t frame, [[maybe_unused]] IPAFrameContext &frameContext, rkisp1_params_cfg *params) { if (frame > 0) return; if (!tuningParameters_) return; params->others.bls_config.enable_auto = 0; params->others.bls_config.fixed_val.r = blackLevelRed_; params->others.bls_config.fixed_val.gr = blackLevelGreenR_; params->others.bls_config.fixed_val.gb = blackLevelGreenB_; params->others.bls_config.fixed_val.b = blackLevelBlue_; params->module_en_update |= RKISP1_CIF_ISP_MODULE_BLS; params->module_ens |= RKISP1_CIF_ISP_MODULE_BLS; params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_BLS; } REGISTER_IPA_ALGORITHM(BlackLevelCorrection, "BlackLevelCorrection") } /* namespace ipa::rkisp1::algorithms */ } /* namespace libcamera */