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{
    "id": 17136,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/17136/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/17136/",
    "project": {
        "id": 1,
        "url": "https://patchwork.libcamera.org/api/1.1/projects/1/?format=api",
        "name": "libcamera",
        "link_name": "libcamera",
        "list_id": "libcamera_core",
        "list_email": "libcamera-devel@lists.libcamera.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": ""
    },
    "msgid": "<20220816015414.7462-10-laurent.pinchart@ideasonboard.com>",
    "date": "2022-08-16T01:54:14",
    "name": "[libcamera-devel,v4,9/9] ipa: rkisp1: Add support of Denoise Pre-Filter control",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": false,
    "hash": "6589ad4dd51b6118271f0b7c36fcd9b2db9a3eab",
    "submitter": {
        "id": 2,
        "url": "https://patchwork.libcamera.org/api/1.1/people/2/?format=api",
        "name": "Laurent Pinchart",
        "email": "laurent.pinchart@ideasonboard.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/17136/mbox/",
    "series": [
        {
            "id": 3418,
            "url": "https://patchwork.libcamera.org/api/1.1/series/3418/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3418",
            "date": "2022-08-16T01:54:05",
            "name": "Add DPF tuning support for RkISP1",
            "version": 4,
            "mbox": "https://patchwork.libcamera.org/series/3418/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/17136/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/17136/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
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        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Tue, 16 Aug 2022 04:54:14 +0300",
        "Message-Id": "<20220816015414.7462-10-laurent.pinchart@ideasonboard.com>",
        "X-Mailer": "git-send-email 2.35.1",
        "In-Reply-To": "<20220816015414.7462-1-laurent.pinchart@ideasonboard.com>",
        "References": "<20220816015414.7462-1-laurent.pinchart@ideasonboard.com>",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [PATCH v4 9/9] ipa: rkisp1: Add support of\n\tDenoise Pre-Filter control",
        "X-BeenThere": "libcamera-devel@lists.libcamera.org",
        "X-Mailman-Version": "2.1.29",
        "Precedence": "list",
        "List-Id": "<libcamera-devel.lists.libcamera.org>",
        "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>",
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        "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>",
        "From": "Laurent Pinchart via libcamera-devel\n\t<libcamera-devel@lists.libcamera.org>",
        "Reply-To": "Laurent Pinchart <laurent.pinchart@ideasonboard.com>",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "From: Florian Sylvestre <fsylvestre@baylibre.com>\n\nThe denoise pre-filter algorithm is a bilateral filter which combines a range\nfilter and a domain filter. The denoise pre-filter is applied before\ndemosaicing.\n\nSigned-off-by: Florian Sylvestre <fsylvestre@baylibre.com>\nReviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\nSigned-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\nReviewed-by: Umang Jain <umang.jain@ideasonboard.com>\n---\nChanges since v3:\n\n- Use YamlObject::getList<uint8_t> for domain filter coefficients\n- Add comment to explain gain handling\n\nChanges since v2:\n\n- Change the scope of some variables in Dpf::prepare()\n- Line-wrap coefficients in tuning file\n---\n src/ipa/rkisp1/algorithms/dpf.cpp     | 258 ++++++++++++++++++++++++++\n src/ipa/rkisp1/algorithms/dpf.h       |  36 ++++\n src/ipa/rkisp1/algorithms/meson.build |   1 +\n src/ipa/rkisp1/data/ov5640.yaml       |  15 ++\n src/ipa/rkisp1/ipa_context.cpp        |  11 ++\n src/ipa/rkisp1/ipa_context.h          |   5 +\n 6 files changed, 326 insertions(+)\n create mode 100644 src/ipa/rkisp1/algorithms/dpf.cpp\n create mode 100644 src/ipa/rkisp1/algorithms/dpf.h",
    "diff": "diff --git a/src/ipa/rkisp1/algorithms/dpf.cpp b/src/ipa/rkisp1/algorithms/dpf.cpp\nnew file mode 100644\nindex 000000000000..c93c8361b5da\n--- /dev/null\n+++ b/src/ipa/rkisp1/algorithms/dpf.cpp\n@@ -0,0 +1,258 @@\n+/* SPDX-License-Identifier: LGPL-2.1-or-later */\n+/*\n+ * Copyright (C) 2021-2022, Ideas On Board\n+ *\n+ * dpf.cpp - RkISP1 Denoise Pre-Filter control\n+ */\n+\n+#include \"dpf.h\"\n+\n+#include <cmath>\n+\n+#include <libcamera/base/log.h>\n+\n+#include <libcamera/control_ids.h>\n+\n+#include \"linux/rkisp1-config.h\"\n+\n+/**\n+ * \\file dpf.h\n+ */\n+\n+namespace libcamera {\n+\n+namespace ipa::rkisp1::algorithms {\n+\n+/**\n+ * \\class Dpf\n+ * \\brief RkISP1 Denoise Pre-Filter control\n+ *\n+ * The denoise pre-filter algorithm is a bilateral filter which combines a\n+ * range filter and a domain filter. The denoise pre-filter is applied before\n+ * demosaicing.\n+ */\n+\n+LOG_DEFINE_CATEGORY(RkISP1Dpf)\n+\n+Dpf::Dpf()\n+\t: initialized_(false), config_({}), strengthConfig_({})\n+{\n+}\n+\n+/**\n+ * \\copydoc libcamera::ipa::Algorithm::init\n+ */\n+int Dpf::init([[maybe_unused]] IPAContext &context,\n+\t      const YamlObject &tuningData)\n+{\n+\tstd::vector<uint8_t> values;\n+\n+\t/*\n+\t * The domain kernel is configured with a 9x9 kernel for the green\n+\t * pixels, and a 13x9 or 9x9 kernel for red and blue pixels.\n+\t */\n+\tconst YamlObject &dFObject = tuningData[\"DomainFilter\"];\n+\n+\t/*\n+\t * For the green component, we have the 9x9 kernel specified\n+\t * as 6 coefficients:\n+\t *    Y\n+\t *    ^\n+\t *  4 | 6   5   4   5   6\n+\t *  3 |   5   3   3   5\n+\t *  2 | 5   3   2   3   5\n+\t *  1 |   3   1   1   3\n+\t *  0 - 4   2   0   2   4\n+\t * -1 |   3   1   1   3\n+\t * -2 | 5   3   2   3   5\n+\t * -3 |   5   3   3   5\n+\t * -4 | 6   5   4   5   6\n+\t *    +---------|--------> X\n+\t *     -4....-1 0 1 2 3 4\n+\t */\n+\tvalues = dFObject[\"g\"].getList<uint8_t>().value_or(utils::defopt);\n+\tif (values.size() != RKISP1_CIF_ISP_DPF_MAX_SPATIAL_COEFFS) {\n+\t\tLOG(RkISP1Dpf, Error)\n+\t\t\t<< \"Invalid 'DomainFilter:g': expected \"\n+\t\t\t<< RKISP1_CIF_ISP_DPF_MAX_SPATIAL_COEFFS\n+\t\t\t<< \" elements, got \" << values.size();\n+\t\treturn -EINVAL;\n+\t}\n+\n+\tstd::copy_n(values.begin(), values.size(),\n+\t\t    std::begin(config_.g_flt.spatial_coeff));\n+\n+\tconfig_.g_flt.gr_enable = true;\n+\tconfig_.g_flt.gb_enable = true;\n+\n+\t/*\n+\t * For the red and blue components, we have the 13x9 kernel specified\n+\t * as 6 coefficients:\n+\t *\n+\t *    Y\n+\t *    ^\n+\t *  4 | 6   5   4   3   4   5   6\n+\t *    |\n+\t *  2 | 5   4   2   1   2   4   5\n+\t *    |\n+\t *  0 - 5   3   1   0   1   3   5\n+\t *    |\n+\t * -2 | 5   4   2   1   2   4   5\n+\t *    |\n+\t * -4 | 6   5   4   3   4   5   6\n+\t *    +-------------|------------> X\n+\t *     -6  -4  -2   0   2   4   6\n+\t *\n+\t * For a 9x9 kernel, columns -6 and 6 are dropped, so coefficient\n+\t * number 6 is not used.\n+\t */\n+\tvalues = dFObject[\"rb\"].getList<uint8_t>().value_or(utils::defopt);\n+\tif (values.size() != RKISP1_CIF_ISP_DPF_MAX_SPATIAL_COEFFS &&\n+\t    values.size() != RKISP1_CIF_ISP_DPF_MAX_SPATIAL_COEFFS - 1) {\n+\t\tLOG(RkISP1Dpf, Error)\n+\t\t\t<< \"Invalid 'DomainFilter:rb': expected \"\n+\t\t\t<< RKISP1_CIF_ISP_DPF_MAX_SPATIAL_COEFFS - 1\n+\t\t\t<< \" or \" << RKISP1_CIF_ISP_DPF_MAX_SPATIAL_COEFFS\n+\t\t\t<< \" elements, got \" << values.size();\n+\t\treturn -EINVAL;\n+\t}\n+\n+\tconfig_.rb_flt.fltsize = values.size() == RKISP1_CIF_ISP_DPF_MAX_SPATIAL_COEFFS\n+\t\t\t       ? RKISP1_CIF_ISP_DPF_RB_FILTERSIZE_13x9\n+\t\t\t       : RKISP1_CIF_ISP_DPF_RB_FILTERSIZE_9x9;\n+\n+\tstd::copy_n(values.begin(), values.size(),\n+\t\t    std::begin(config_.rb_flt.spatial_coeff));\n+\n+\tconfig_.rb_flt.r_enable = true;\n+\tconfig_.rb_flt.b_enable = true;\n+\n+\t/*\n+\t * The range kernel is configured with a noise level lookup table (NLL)\n+\t * which stores a piecewise linear function that characterizes the\n+\t * sensor noise profile as a noise level function curve (NLF).\n+\t */\n+\tconst YamlObject &rFObject = tuningData[\"NoiseLevelFunction\"];\n+\n+\tstd::vector<uint16_t> nllValues;\n+\tnllValues = rFObject[\"coeff\"].getList<uint16_t>().value_or(utils::defopt);\n+\tif (nllValues.size() != RKISP1_CIF_ISP_DPF_MAX_NLF_COEFFS) {\n+\t\tLOG(RkISP1Dpf, Error)\n+\t\t\t<< \"Invalid 'RangeFilter:coeff': expected \"\n+\t\t\t<< RKISP1_CIF_ISP_DPF_MAX_NLF_COEFFS\n+\t\t\t<< \" elements, got \" << nllValues.size();\n+\t\treturn -EINVAL;\n+\t}\n+\n+\tstd::copy_n(nllValues.begin(), nllValues.size(),\n+\t\t    std::begin(config_.nll.coeff));\n+\n+\tstd::string scaleMode = rFObject[\"scale-mode\"].get<std::string>(\"\");\n+\tif (scaleMode == \"linear\") {\n+\t\tconfig_.nll.scale_mode = RKISP1_CIF_ISP_NLL_SCALE_LINEAR;\n+\t} else if (scaleMode == \"logarithmic\") {\n+\t\tconfig_.nll.scale_mode = RKISP1_CIF_ISP_NLL_SCALE_LOGARITHMIC;\n+\t} else {\n+\t\tLOG(RkISP1Dpf, Error)\n+\t\t\t<< \"Invalid 'RangeFilter:scale-mode': expected \"\n+\t\t\t<< \"'linear' or 'logarithmic' value, got \"\n+\t\t\t<< scaleMode;\n+\t\treturn -EINVAL;\n+\t}\n+\n+\tconst YamlObject &fSObject = tuningData[\"FilterStrength\"];\n+\n+\tstrengthConfig_.r = fSObject[\"r\"].get<uint16_t>(64);\n+\tstrengthConfig_.g = fSObject[\"g\"].get<uint16_t>(64);\n+\tstrengthConfig_.b = fSObject[\"b\"].get<uint16_t>(64);\n+\n+\tinitialized_ = true;\n+\n+\treturn 0;\n+}\n+\n+/**\n+ * \\copydoc libcamera::ipa::Algorithm::queueRequest\n+ */\n+void Dpf::queueRequest(IPAContext &context,\n+\t\t       [[maybe_unused]] const uint32_t frame,\n+\t\t       const ControlList &controls)\n+{\n+\tauto &dpf = context.frameContext.dpf;\n+\n+\tconst auto &denoise = controls.get(controls::draft::NoiseReductionMode);\n+\tif (denoise) {\n+\t\tLOG(RkISP1Dpf, Debug) << \"Set denoise to \" << *denoise;\n+\n+\t\tswitch (*denoise) {\n+\t\tcase controls::draft::NoiseReductionModeOff:\n+\t\t\tdpf.denoise = false;\n+\t\t\tdpf.updateParams = true;\n+\t\t\tbreak;\n+\t\tcase controls::draft::NoiseReductionModeMinimal:\n+\t\tcase controls::draft::NoiseReductionModeHighQuality:\n+\t\tcase controls::draft::NoiseReductionModeFast:\n+\t\t\tdpf.denoise = true;\n+\t\t\tdpf.updateParams = true;\n+\t\t\tbreak;\n+\t\tdefault:\n+\t\t\tLOG(RkISP1Dpf, Error)\n+\t\t\t\t<< \"Unsupported denoise value \"\n+\t\t\t\t<< *denoise;\n+\t\t}\n+\t}\n+}\n+\n+/**\n+ * \\copydoc libcamera::ipa::Algorithm::prepare\n+ */\n+void Dpf::prepare(IPAContext &context, rkisp1_params_cfg *params)\n+{\n+\tif (!initialized_)\n+\t\treturn;\n+\n+\tauto &dpf = context.frameContext.dpf;\n+\n+\tif (context.frameContext.frameCount == 0) {\n+\t\tparams->others.dpf_config = config_;\n+\t\tparams->others.dpf_strength_config = strengthConfig_;\n+\n+\t\tconst auto &awb = context.configuration.awb;\n+\t\tconst auto &lsc = context.configuration.lsc;\n+\t\tauto &mode = params->others.dpf_config.gain.mode;\n+\n+\t\t/*\n+\t\t * The DPF needs to take into account the total amount of\n+\t\t * digital gain, which comes from the AWB and LSC modules. The\n+\t\t * DPF hardware can be programmed with a digital gain value\n+\t\t * manually, but can also use the gains supplied by the AWB and\n+\t\t * LSC modules automatically when they are enabled. Use that\n+\t\t * mode of operation as it simplifies control of the DPF.\n+\t\t */\n+\t\tif (awb.enabled && lsc.enabled)\n+\t\t\tmode = RKISP1_CIF_ISP_DPF_GAIN_USAGE_AWB_LSC_GAINS;\n+\t\telse if (awb.enabled)\n+\t\t\tmode = RKISP1_CIF_ISP_DPF_GAIN_USAGE_AWB_GAINS;\n+\t\telse if (lsc.enabled)\n+\t\t\tmode = RKISP1_CIF_ISP_DPF_GAIN_USAGE_LSC_GAINS;\n+\t\telse\n+\t\t\tmode = RKISP1_CIF_ISP_DPF_GAIN_USAGE_DISABLED;\n+\n+\t\tparams->module_cfg_update |= RKISP1_CIF_ISP_MODULE_DPF |\n+\t\t\t\t\t     RKISP1_CIF_ISP_MODULE_DPF_STRENGTH;\n+\t}\n+\n+\tif (dpf.updateParams) {\n+\t\tparams->module_en_update |= RKISP1_CIF_ISP_MODULE_DPF;\n+\t\tif (dpf.denoise)\n+\t\t\tparams->module_ens |= RKISP1_CIF_ISP_MODULE_DPF;\n+\n+\t\tdpf.updateParams = false;\n+\t}\n+}\n+\n+REGISTER_IPA_ALGORITHM(Dpf, \"Dpf\")\n+\n+} /* namespace ipa::rkisp1::algorithms */\n+\n+} /* namespace libcamera */\ndiff --git a/src/ipa/rkisp1/algorithms/dpf.h b/src/ipa/rkisp1/algorithms/dpf.h\nnew file mode 100644\nindex 000000000000..128ebd5e02e3\n--- /dev/null\n+++ b/src/ipa/rkisp1/algorithms/dpf.h\n@@ -0,0 +1,36 @@\n+/* SPDX-License-Identifier: LGPL-2.1-or-later */\n+/*\n+ * Copyright (C) 2021-2022, Ideas On Board\n+ *\n+ * dpf.h - RkISP1 Denoise Pre-Filter control\n+ */\n+\n+#pragma once\n+\n+#include <sys/types.h>\n+\n+#include \"algorithm.h\"\n+\n+namespace libcamera {\n+\n+namespace ipa::rkisp1::algorithms {\n+\n+class Dpf : public Algorithm\n+{\n+public:\n+\tDpf();\n+\t~Dpf() = default;\n+\n+\tint init(IPAContext &context, const YamlObject &tuningData) override;\n+\tvoid queueRequest(IPAContext &context, const uint32_t frame,\n+\t\t\t  const ControlList &controls) override;\n+\tvoid prepare(IPAContext &context, rkisp1_params_cfg *params) override;\n+\n+private:\n+\tbool initialized_;\n+\tstruct rkisp1_cif_isp_dpf_config config_;\n+\tstruct rkisp1_cif_isp_dpf_strength_config strengthConfig_;\n+};\n+\n+} /* namespace ipa::rkisp1::algorithms */\n+} /* namespace libcamera */\ndiff --git a/src/ipa/rkisp1/algorithms/meson.build b/src/ipa/rkisp1/algorithms/meson.build\nindex e48974b454b5..93a483292753 100644\n--- a/src/ipa/rkisp1/algorithms/meson.build\n+++ b/src/ipa/rkisp1/algorithms/meson.build\n@@ -6,6 +6,7 @@ rkisp1_ipa_algorithms = files([\n     'blc.cpp',\n     'cproc.cpp',\n     'dpcc.cpp',\n+    'dpf.cpp',\n     'filter.cpp',\n     'gsl.cpp',\n     'lsc.cpp',\ndiff --git a/src/ipa/rkisp1/data/ov5640.yaml b/src/ipa/rkisp1/data/ov5640.yaml\nindex 45d4bb77f8ca..3dc369ac3681 100644\n--- a/src/ipa/rkisp1/data/ov5640.yaml\n+++ b/src/ipa/rkisp1/data/ov5640.yaml\n@@ -156,5 +156,20 @@ algorithms:\n           rnd-offsets:\n             green: 2\n             red-blue: 2\n+  - Dpf:\n+      DomainFilter:\n+        g: [ 16, 16, 16, 16, 16, 16 ]\n+        rb: [ 16, 16, 16, 16, 16, 16 ]\n+      NoiseLevelFunction:\n+        coeff: [\n+          1023, 1023, 1023, 1023, 1023, 1023, 1023, 1023,\n+          1023, 1023, 1023, 1023, 1023, 1023, 1023, 1023,\n+          1023\n+        ]\n+        scale-mode: \"linear\"\n+      FilterStrength:\n+        r: 64\n+        g: 64\n+        b: 64\n   - Filter:\n ...\ndiff --git a/src/ipa/rkisp1/ipa_context.cpp b/src/ipa/rkisp1/ipa_context.cpp\nindex 1a549c092d73..17f15fd4e6b5 100644\n--- a/src/ipa/rkisp1/ipa_context.cpp\n+++ b/src/ipa/rkisp1/ipa_context.cpp\n@@ -164,6 +164,17 @@ namespace libcamera::ipa::rkisp1 {\n  * \\brief Indicates if ISP parameters need to be updated\n  */\n \n+/**\n+ * \\var IPAFrameContext::dpf\n+ * \\brief Context for the Denoise Pre-Filter algorithm\n+ *\n+ * \\var IPAFrameContext::dpf.denoise\n+ * \\brief Indicates if denoise is activated\n+ *\n+ * \\var IPAFrameContext::dpf.updateParams\n+ * \\brief Indicates if ISP parameters need to be updated\n+ */\n+\n /**\n  * \\var IPAFrameContext::filter\n  * \\brief Context for the Filter algorithm\ndiff --git a/src/ipa/rkisp1/ipa_context.h b/src/ipa/rkisp1/ipa_context.h\nindex 0cd6aadb83ed..3a743ac325da 100644\n--- a/src/ipa/rkisp1/ipa_context.h\n+++ b/src/ipa/rkisp1/ipa_context.h\n@@ -69,6 +69,11 @@ struct IPAFrameContext {\n \t\tbool updateParams;\n \t} cproc;\n \n+\tstruct {\n+\t\tbool denoise;\n+\t\tbool updateParams;\n+\t} dpf;\n+\n \tstruct {\n \t\tuint8_t denoise;\n \t\tuint8_t sharpness;\n",
    "prefixes": [
        "libcamera-devel",
        "v4",
        "9/9"
    ]
}