diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/ipa/rpi/cam_helper/cam_helper_ov7251.cpp | 66 | ||||
| -rw-r--r-- | src/ipa/rpi/cam_helper/meson.build | 1 | ||||
| -rw-r--r-- | src/ipa/rpi/vc4/data/meson.build | 1 | ||||
| -rw-r--r-- | src/ipa/rpi/vc4/data/ov7251_mono.json | 136 |
4 files changed, 204 insertions, 0 deletions
diff --git a/src/ipa/rpi/cam_helper/cam_helper_ov7251.cpp b/src/ipa/rpi/cam_helper/cam_helper_ov7251.cpp new file mode 100644 index 00000000..7b12c445 --- /dev/null +++ b/src/ipa/rpi/cam_helper/cam_helper_ov7251.cpp @@ -0,0 +1,66 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2021, Raspberry Pi Ltd + * + * camera information for ov7251 sensor + */ + +#include <assert.h> + +#include "cam_helper.h" + +using namespace RPiController; + +class CamHelperOv7251 : public CamHelper +{ +public: + CamHelperOv7251(); + uint32_t gainCode(double gain) const override; + double gain(uint32_t gainCode) const override; + void getDelays(int &exposureDelay, int &gainDelay, + int &vblankDelay, int &hblankDelay) const override; + +private: + /* + * Smallest difference between the frame length and integration time, + * in units of lines. + */ + static constexpr int frameIntegrationDiff = 4; +}; + +/* + * OV7251 doesn't output metadata, so we have to use the "unicam parser" which + * works by counting frames. + */ + +CamHelperOv7251::CamHelperOv7251() + : CamHelper({}, frameIntegrationDiff) +{ +} + +uint32_t CamHelperOv7251::gainCode(double gain) const +{ + return static_cast<uint32_t>(gain * 16.0); +} + +double CamHelperOv7251::gain(uint32_t gainCode) const +{ + return static_cast<double>(gainCode) / 16.0; +} + +void CamHelperOv7251::getDelays(int &exposureDelay, int &gainDelay, + int &vblankDelay, int &hblankDelay) const +{ + /* The driver appears to behave as follows: */ + exposureDelay = 2; + gainDelay = 2; + vblankDelay = 2; + hblankDelay = 2; +} + +static CamHelper *create() +{ + return new CamHelperOv7251(); +} + +static RegisterCamHelper reg("ov7251", &create); diff --git a/src/ipa/rpi/cam_helper/meson.build b/src/ipa/rpi/cam_helper/meson.build index 1e43f1da..03e88fe0 100644 --- a/src/ipa/rpi/cam_helper/meson.build +++ b/src/ipa/rpi/cam_helper/meson.build @@ -11,6 +11,7 @@ rpi_ipa_cam_helper_sources = files([ 'cam_helper_imx519.cpp', 'cam_helper_imx708.cpp', 'cam_helper_ov64a40.cpp', + 'cam_helper_ov7251.cpp', 'cam_helper_ov9281.cpp', 'md_parser_smia.cpp', ]) diff --git a/src/ipa/rpi/vc4/data/meson.build b/src/ipa/rpi/vc4/data/meson.build index 60477c11..8c34a1a5 100644 --- a/src/ipa/rpi/vc4/data/meson.build +++ b/src/ipa/rpi/vc4/data/meson.build @@ -19,6 +19,7 @@ conf_files = files([ 'ov5647.json', 'ov5647_noir.json', 'ov64a40.json', + 'ov7251_mono.json', 'ov9281_mono.json', 'se327m12.json', 'uncalibrated.json', diff --git a/src/ipa/rpi/vc4/data/ov7251_mono.json b/src/ipa/rpi/vc4/data/ov7251_mono.json new file mode 100644 index 00000000..a9d05a01 --- /dev/null +++ b/src/ipa/rpi/vc4/data/ov7251_mono.json @@ -0,0 +1,136 @@ +{ + "version": 2.0, + "target": "bcm2835", + "algorithms": [ + { + "rpi.black_level": + { + "black_level": 4096 + } + }, + { + "rpi.lux": + { + "reference_shutter_speed": 2000, + "reference_gain": 1.0, + "reference_aperture": 1.0, + "reference_lux": 800, + "reference_Y": 20000 + } + }, + { + "rpi.noise": + { + "reference_constant": 0, + "reference_slope": 2.5 + } + }, + { + "rpi.sdn": { } + }, + { + "rpi.agc": + { + "metering_modes": + { + "centre-weighted": + { + "weights": + [ + 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + } + }, + "exposure_modes": + { + "normal": + { + "shutter": [ 100, 15000, 30000, 60000, 120000 ], + "gain": [ 1.0, 2.0, 3.0, 4.0, 8.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 30000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "long": + { + "shutter": [ 1000, 30000, 60000, 90000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } + }, + "constraint_modes": + { + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.4, + 1000, 0.4 + ] + } + ] + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ] + } + }, + { + "rpi.alsc": + { + "n_iter": 0, + "luminance_strength": 1.0, + "corner_strength": 1.5 + } + }, + { + "rpi.contrast": + { + "ce_enable": 0, + "gamma_curve": + [ + 0, 0, + 1024, 5040, + 2048, 9338, + 3072, 12356, + 4096, 15312, + 5120, 18051, + 6144, 20790, + 7168, 23193, + 8192, 25744, + 9216, 27942, + 10240, 30035, + 11264, 32005, + 12288, 33975, + 13312, 35815, + 14336, 37600, + 15360, 39168, + 16384, 40642, + 18432, 43379, + 20480, 45749, + 22528, 47753, + 24576, 49621, + 26624, 51253, + 28672, 52698, + 30720, 53796, + 32768, 54876, + 36864, 57012, + 40960, 58656, + 45056, 59954, + 49152, 61183, + 53248, 62355, + 57344, 63419, + 61440, 64476, + 65535, 65535 + ] + } + } + ] +}
\ No newline at end of file |