[{"id":38223,"web_url":"https://patchwork.libcamera.org/comment/38223/","msgid":"<177148622052.607498.13835582746325139849@neptunite.rasen.tech>","date":"2026-02-19T07:30:20","subject":"Re: [PATCH v7 01/15] ipa: libipa: Provide a Quantized data type\n\tsupport","submitter":{"id":17,"url":"https://patchwork.libcamera.org/api/people/17/","name":"Paul Elder","email":"paul.elder@ideasonboard.com"},"content":"Quoting Kieran Bingham (2026-02-14 01:57:40)\n> Frequently when handling data in IPA components we must convert and\n> store user interface values which may be floating point values, and\n> perform a specific operation or conversion to quantize this to a\n> hardware value.\n> \n> This value may be to a fixed point type, or more custom code mappings,\n> but in either case it is important to contain both the required hardware\n> value, with its effective quantized value.\n> \n> Provide a new storage type 'Quantized' which can be defined based on a\n> set of type specific Traits to perform the conversions between floats\n> and the underlying hardware type.\n> \n> Reviewed-by: Barnabás Pőcze \n> Reviewed-by: Isaac Scott \n> Signed-off-by: Kieran Bingham \n\nReviewed-by: Paul Elder \n\n> \n> ---\n> v3:\n> - adapt string format to [0xff:1.99] style instead of Q:0xff V:1.99\n> - Clean up comments and copyright\n> - Remove private initialisers - already handled by constructors\n> - Change quantized_type to QuantizedType\n> \n> v5:\n> - introduce operator<<(std::ostream &out, const Quantized &q)\n> - Remove unused iomanip and stdint.h from includes\n> ---\n> src/ipa/libipa/meson.build | 2 +\n> src/ipa/libipa/quantized.cpp | 135 +++++++++++++++++++++++++++++++++++++++++++\n> src/ipa/libipa/quantized.h | 75 ++++++++++++++++++++++++\n> 3 files changed, 212 insertions(+)\n> \n> diff --git a/src/ipa/libipa/meson.build b/src/ipa/libipa/meson.build\n> index 7202df869c2f..963c5ee73063 100644\n> --- a/src/ipa/libipa/meson.build\n> +++ b/src/ipa/libipa/meson.build\n> @@ -17,6 +17,7 @@ libipa_headers = files([\n> 'lux.h',\n> 'module.h',\n> 'pwl.h',\n> + 'quantized.h',\n> 'v4l2_params.h',\n> ])\n> \n> @@ -37,6 +38,7 @@ libipa_sources = files([\n> 'lux.cpp',\n> 'module.cpp',\n> 'pwl.cpp',\n> + 'quantized.cpp',\n> 'v4l2_params.cpp',\n> ])\n> \n> diff --git a/src/ipa/libipa/quantized.cpp b/src/ipa/libipa/quantized.cpp\n> new file mode 100644\n> index 000000000000..06143a97ab3e\n> --- /dev/null\n> +++ b/src/ipa/libipa/quantized.cpp\n> @@ -0,0 +1,135 @@\n> +/* SPDX-License-Identifier: LGPL-2.1-or-later */\n> +/*\n> + * Copyright (C) 2025, Ideas On Board Oy\n> + *\n> + * Helper class to manage conversions between floating point types and quantized\n> + * storage and representation of those values.\n> + */\n> +\n> +#include \"quantized.h\"\n> +\n> +/**\n> + * \\file quantized.h\n> + * \\brief Quantized storage and Quantizer representations\n> + */\n> +\n> +namespace libcamera {\n> +\n> +namespace ipa {\n> +\n> +/**\n> + * \\struct libcamera::ipa::Quantized\n> + * \\brief Wrapper that stores a value in both quantized and floating-point form\n> + * \\tparam Traits The traits class defining the quantization behaviour\n> + *\n> + * The Quantized struct template provides a thin wrapper around a quantized\n> + * representation of a floating-point value. It uses a traits type \\a Traits\n> + * to define the conversion policy between the floating-point domain and the\n> + * quantized integer domain.\n> + *\n> + * Each Quantized instance maintains two synchronized members:\n> + * - the quantized integer representation, and\n> + * - the corresponding floating-point value.\n> + *\n> + * The traits type defines:\n> + * - the integer storage type used for quantization,\n> + * - the static conversion functions \\c fromFloat() and \\c toFloat(), and\n> + * - optional metadata such as value ranges.\n> + *\n> + * Quantized provides convenient constructors and assignment operators from\n> + * either representation, as well as comparison and string formatting utilities.\n> + */\n> +\n> +/**\n> + * \\typedef Quantized::TraitsType\n> + * \\brief The traits policy type defining the quantization behaviour\n> + *\n> + * Exposes the associated traits type used by this Quantized instance.\n> + * This allows external code to refer to constants or metadata defined in\n> + * the traits, such as \\c TraitsType::min or \\c TraitsType::max.\n> + */\n> +\n> +/**\n> + * \\typedef Quantized::QuantizedType\n> + * \\brief The integer type used for the quantized representation\n> + *\n> + * This alias corresponds to \\c TraitsType::QuantizedType, as defined by\n> + * the traits class.\n> + */\n> +\n> +/**\n> + * \\fn Quantized::Quantized(float x)\n> + * \\brief Construct a Quantized value from a floating-point number\n> + * \\param[in] x The floating-point value to be quantized\n> + *\n> + * Converts the floating-point input \\a x to its quantized integer\n> + * representation using the associated traits policy, and initializes\n> + * both the quantized and floating-point members.\n> + */\n> +\n> +/**\n> + * \\fn Quantized::Quantized(QuantizedType x)\n> + * \\brief Construct a Quantized value from an existing quantized integer\n> + * \\param[in] x The quantized integer value\n> + *\n> + * Converts the quantized integer \\a x to its corresponding floating-point\n> + * value using the traits policy, and initializes both internal members.\n> + */\n> +\n> +/**\n> + * \\fn Quantized::operator=(float x)\n> + * \\brief Assign a floating-point value to the Quantized object\n> + * \\param[in] x The floating-point value to assign\n> + * \\return A reference to the updated Quantized object\n> + *\n> + * Converts the floating-point value \\a x to its quantized integer\n> + * representation using the traits policy and updates both members.\n> + */\n> +\n> +/**\n> + * \\fn Quantized::operator=(QuantizedType x)\n> + * \\brief Assign a quantized integer value to the Quantized object\n> + * \\param[in] x The quantized integer value to assign\n> + * \\return A reference to the updated Quantized object\n> + *\n> + * Converts the quantized integer \\a x to its corresponding floating-point\n> + * value using the traits policy and updates both members.\n> + */\n> +\n> +/**\n> + * \\fn Quantized::value() const noexcept\n> + * \\brief Retrieve the floating-point representation\n> + * \\return The floating-point value corresponding to the quantized value\n> + */\n> +\n> +/**\n> + * \\fn Quantized::quantized() const noexcept\n> + * \\brief Retrieve the quantized integer representation\n> + * \\return The quantized integer value\n> + */\n> +\n> +/**\n> + * \\fn Quantized::operator==(const Quantized &other) const noexcept\n> + * \\brief Compare two Quantized objects for equality\n> + * \\param[in] other The other Quantized object to compare against\n> + * \\return True if both objects have the same quantized integer value\n> + */\n> +\n> +/**\n> + * \\fn Quantized::operator!=(const Quantized &other) const noexcept\n> + * \\brief Compare two Quantized objects for inequality\n> + * \\param[in] other The other Quantized object to compare against\n> + * \\return True if the quantized integer values differ\n> + */\n> +\n> +/**\n> + * \\fn std::ostream &Quantized::operator<<(std::ostream &out, const Quantized &q)\n> + * \\brief Insert a text representation of a Quantized into an output stream\n> + * \\param[in] out The output stream\n> + * \\param[in] q The Quantized\n> + * \\return The output stream \\a out\n> + */\n> +\n> +} /* namespace ipa */\n> +\n> +} /* namespace libcamera */\n> diff --git a/src/ipa/libipa/quantized.h b/src/ipa/libipa/quantized.h\n> new file mode 100644\n> index 000000000000..0b2f7148c821\n> --- /dev/null\n> +++ b/src/ipa/libipa/quantized.h\n> @@ -0,0 +1,75 @@\n> +/* SPDX-License-Identifier: LGPL-2.1-or-later */\n> +/*\n> + * Copyright (C) 2025, Ideas On Board Oy\n> + *\n> + * Helper class to manage conversions between floating point types and quantized\n> + * storage and representation of those values.\n> + */\n> +\n> +#pragma once\n> +\n> +#include \n> +#include \n> +\n> +#include \n> +\n> +namespace libcamera {\n> +\n> +namespace ipa {\n> +\n> +template\n> +struct Quantized {\n> + using TraitsType = Traits;\n> + using QuantizedType = typename Traits::QuantizedType;\n> + static_assert(std::is_arithmetic_v,\n> + \"Quantized: QuantizedType must be arithmetic\");\n> +\n> + Quantized()\n> + : Quantized(0.0f) {}\n> + Quantized(float x) { *this = x; }\n> + Quantized(QuantizedType x) { *this = x; }\n> +\n> + Quantized &operator=(float x)\n> + {\n> + quantized_ = Traits::fromFloat(x);\n> + value_ = Traits::toFloat(quantized_);\n> + return *this;\n> + }\n> +\n> + Quantized &operator=(QuantizedType x)\n> + {\n> + value_ = Traits::toFloat(x);\n> + quantized_ = x;\n> + return *this;\n> + }\n> +\n> + float value() const noexcept { return value_; }\n> + QuantizedType quantized() const noexcept { return quantized_; }\n> +\n> + bool operator==(const Quantized &other) const noexcept\n> + {\n> + return quantized_ == other.quantized_;\n> + }\n> +\n> + bool operator!=(const Quantized &other) const noexcept\n> + {\n> + return !(*this == other);\n> + }\n> +\n> + friend std::ostream &operator<<(std::ostream &out,\n> + const Quantized &q)\n> + {\n> + out << \"[\" << utils::hex(q.quantized())\n> + << \":\" << q.value() << \"]\";\n> +\n> + return out;\n> + }\n> +\n> +private:\n> + QuantizedType quantized_;\n> + float value_;\n> +};\n> +\n> +} /* namespace ipa */\n> +\n> +} /* namespace libcamera */\n> \n> -- \n> 2.52.0\n>","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 249F3C0DA4\n\tfor ;\n\tThu, 19 Feb 2026 07:30:29 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id C73FD62232;\n\tThu, 19 Feb 2026 08:30:28 +0100 (CET)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 583E26221D\n\tfor ;\n\tThu, 19 Feb 2026 08:30:27 +0100 (CET)","from neptunite.rasen.tech 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charset=\"utf-8\"","MIME-Version":"1.0","Content-Transfer-Encoding":"quoted-printable","In-Reply-To":"<20260213-kbingham-quantizers-v7-1-1626b9aaabf1@ideasonboard.com>","References":"<20260213-kbingham-quantizers-v7-0-1626b9aaabf1@ideasonboard.com>\n\t<20260213-kbingham-quantizers-v7-1-1626b9aaabf1@ideasonboard.com>","Subject":"Re: [PATCH v7 01/15] ipa: libipa: Provide a Quantized data type\n\tsupport","From":"Paul Elder ","Cc":"Kieran Bingham , =?utf-8?q?Barnab?=\n\t=?utf-8?b?w6FzIFDFkWN6ZQ==?= ,\n\tIsaac Scott ","To":"Kieran Bingham ,\n\tlibcamera-devel@lists.libcamera.org","Date":"Thu, 19 Feb 2026 16:30:20 +0900","Message-ID":"<177148622052.607498.13835582746325139849@neptunite.rasen.tech>","User-Agent":"alot/0.0.0","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":38234,"web_url":"https://patchwork.libcamera.org/comment/38234/","msgid":"<20260219092744.GH520738@killaraus.ideasonboard.com>","date":"2026-02-19T09:27:44","subject":"Re: [PATCH v7 01/15] ipa: libipa: Provide a Quantized data type\n\tsupport","submitter":{"id":2,"url":"https://patchwork.libcamera.org/api/people/2/","name":"Laurent Pinchart","email":"laurent.pinchart@ideasonboard.com"},"content":"Hi Kieran,\n\nThank you for the patch.\n\nIt seems you forgot to address my comments on v6.\n\nOn Fri, Feb 13, 2026 at 04:57:40PM +0000, Kieran Bingham wrote:\n> Frequently when handling data in IPA components we must convert and\n> store user interface values which may be floating point values, and\n> perform a specific operation or conversion to quantize this to a\n> hardware value.\n> \n> This value may be to a fixed point type, or more custom code mappings,\n> but in either case it is important to contain both the required hardware\n> value, with its effective quantized value.\n> \n> Provide a new storage type 'Quantized' which can be defined based on a\n> set of type specific Traits to perform the conversions between floats\n> and the underlying hardware type.\n> \n> Reviewed-by: Barnabás Pőcze \n> Reviewed-by: Isaac Scott \n> Signed-off-by: Kieran Bingham \n> \n> ---\n> v3:\n> - adapt string format to [0xff:1.99] style instead of Q:0xff V:1.99\n> - Clean up comments and copyright\n> - Remove private initialisers - already handled by constructors\n> - Change quantized_type to QuantizedType\n> \n> v5:\n> - introduce operator<<(std::ostream &out, const Quantized &q)\n> - Remove unused iomanip and stdint.h from includes\n> ---\n> src/ipa/libipa/meson.build | 2 +\n> src/ipa/libipa/quantized.cpp | 135 +++++++++++++++++++++++++++++++++++++++++++\n> src/ipa/libipa/quantized.h | 75 ++++++++++++++++++++++++\n> 3 files changed, 212 insertions(+)\n> \n> diff --git a/src/ipa/libipa/meson.build b/src/ipa/libipa/meson.build\n> index 7202df869c2f..963c5ee73063 100644\n> --- a/src/ipa/libipa/meson.build\n> +++ b/src/ipa/libipa/meson.build\n> @@ -17,6 +17,7 @@ libipa_headers = files([\n> 'lux.h',\n> 'module.h',\n> 'pwl.h',\n> + 'quantized.h',\n> 'v4l2_params.h',\n> ])\n> \n> @@ -37,6 +38,7 @@ libipa_sources = files([\n> 'lux.cpp',\n> 'module.cpp',\n> 'pwl.cpp',\n> + 'quantized.cpp',\n> 'v4l2_params.cpp',\n> ])\n> \n> diff --git a/src/ipa/libipa/quantized.cpp b/src/ipa/libipa/quantized.cpp\n> new file mode 100644\n> index 000000000000..06143a97ab3e\n> --- /dev/null\n> +++ b/src/ipa/libipa/quantized.cpp\n> @@ -0,0 +1,135 @@\n> +/* SPDX-License-Identifier: LGPL-2.1-or-later */\n> +/*\n> + * Copyright (C) 2025, Ideas On Board Oy\n> + *\n> + * Helper class to manage conversions between floating point types and quantized\n> + * storage and representation of those values.\n> + */\n> +\n> +#include \"quantized.h\"\n> +\n> +/**\n> + * \\file quantized.h\n> + * \\brief Quantized storage and Quantizer representations\n> + */\n> +\n> +namespace libcamera {\n> +\n> +namespace ipa {\n> +\n> +/**\n> + * \\struct libcamera::ipa::Quantized\n> + * \\brief Wrapper that stores a value in both quantized and floating-point form\n> + * \\tparam Traits The traits class defining the quantization behaviour\n> + *\n> + * The Quantized struct template provides a thin wrapper around a quantized\n> + * representation of a floating-point value. It uses a traits type \\a Traits\n> + * to define the conversion policy between the floating-point domain and the\n> + * quantized integer domain.\n> + *\n> + * Each Quantized instance maintains two synchronized members:\n> + * - the quantized integer representation, and\n> + * - the corresponding floating-point value.\n> + *\n> + * The traits type defines:\n> + * - the integer storage type used for quantization,\n> + * - the static conversion functions \\c fromFloat() and \\c toFloat(), and\n> + * - optional metadata such as value ranges.\n> + *\n> + * Quantized provides convenient constructors and assignment operators from\n> + * either representation, as well as comparison and string formatting utilities.\n> + */\n> +\n> +/**\n> + * \\typedef Quantized::TraitsType\n> + * \\brief The traits policy type defining the quantization behaviour\n> + *\n> + * Exposes the associated traits type used by this Quantized instance.\n> + * This allows external code to refer to constants or metadata defined in\n> + * the traits, such as \\c TraitsType::min or \\c TraitsType::max.\n> + */\n> +\n> +/**\n> + * \\typedef Quantized::QuantizedType\n> + * \\brief The integer type used for the quantized representation\n> + *\n> + * This alias corresponds to \\c TraitsType::QuantizedType, as defined by\n> + * the traits class.\n> + */\n> +\n> +/**\n> + * \\fn Quantized::Quantized(float x)\n> + * \\brief Construct a Quantized value from a floating-point number\n> + * \\param[in] x The floating-point value to be quantized\n> + *\n> + * Converts the floating-point input \\a x to its quantized integer\n> + * representation using the associated traits policy, and initializes\n> + * both the quantized and floating-point members.\n> + */\n> +\n> +/**\n> + * \\fn Quantized::Quantized(QuantizedType x)\n> + * \\brief Construct a Quantized value from an existing quantized integer\n> + * \\param[in] x The quantized integer value\n> + *\n> + * Converts the quantized integer \\a x to its corresponding floating-point\n> + * value using the traits policy, and initializes both internal members.\n> + */\n> +\n> +/**\n> + * \\fn Quantized::operator=(float x)\n> + * \\brief Assign a floating-point value to the Quantized object\n> + * \\param[in] x The floating-point value to assign\n> + * \\return A reference to the updated Quantized object\n> + *\n> + * Converts the floating-point value \\a x to its quantized integer\n> + * representation using the traits policy and updates both members.\n> + */\n> +\n> +/**\n> + * \\fn Quantized::operator=(QuantizedType x)\n> + * \\brief Assign a quantized integer value to the Quantized object\n> + * \\param[in] x The quantized integer value to assign\n> + * \\return A reference to the updated Quantized object\n> + *\n> + * Converts the quantized integer \\a x to its corresponding floating-point\n> + * value using the traits policy and updates both members.\n> + */\n> +\n> +/**\n> + * \\fn Quantized::value() const noexcept\n> + * \\brief Retrieve the floating-point representation\n> + * \\return The floating-point value corresponding to the quantized value\n> + */\n> +\n> +/**\n> + * \\fn Quantized::quantized() const noexcept\n> + * \\brief Retrieve the quantized integer representation\n> + * \\return The quantized integer value\n> + */\n> +\n> +/**\n> + * \\fn Quantized::operator==(const Quantized &other) const noexcept\n> + * \\brief Compare two Quantized objects for equality\n> + * \\param[in] other The other Quantized object to compare against\n> + * \\return True if both objects have the same quantized integer value\n> + */\n> +\n> +/**\n> + * \\fn Quantized::operator!=(const Quantized &other) const noexcept\n> + * \\brief Compare two Quantized objects for inequality\n> + * \\param[in] other The other Quantized object to compare against\n> + * \\return True if the quantized integer values differ\n> + */\n> +\n> +/**\n> + * \\fn std::ostream &Quantized::operator<<(std::ostream &out, const Quantized &q)\n> + * \\brief Insert a text representation of a Quantized into an output stream\n> + * \\param[in] out The output stream\n> + * \\param[in] q The Quantized\n> + * \\return The output stream \\a out\n> + */\n> +\n> +} /* namespace ipa */\n> +\n> +} /* namespace libcamera */\n> diff --git a/src/ipa/libipa/quantized.h b/src/ipa/libipa/quantized.h\n> new file mode 100644\n> index 000000000000..0b2f7148c821\n> --- /dev/null\n> +++ b/src/ipa/libipa/quantized.h\n> @@ -0,0 +1,75 @@\n> +/* SPDX-License-Identifier: LGPL-2.1-or-later */\n> +/*\n> + * Copyright (C) 2025, Ideas On Board Oy\n> + *\n> + * Helper class to manage conversions between floating point types and quantized\n> + * storage and representation of those values.\n> + */\n> +\n> +#pragma once\n> +\n> +#include \n> +#include \n> +\n> +#include \n> +\n> +namespace libcamera {\n> +\n> +namespace ipa {\n> +\n> +template\n> +struct Quantized {\n> +\tusing TraitsType = Traits;\n> +\tusing QuantizedType = typename Traits::QuantizedType;\n> +\tstatic_assert(std::is_arithmetic_v,\n> +\t\t \"Quantized: QuantizedType must be arithmetic\");\n> +\n> +\tQuantized()\n> +\t\t: Quantized(0.0f) {}\n> +\tQuantized(float x) { *this = x; }\n> +\tQuantized(QuantizedType x) { *this = x; }\n> +\n> +\tQuantized &operator=(float x)\n> +\t{\n> +\t\tquantized_ = Traits::fromFloat(x);\n> +\t\tvalue_ = Traits::toFloat(quantized_);\n> +\t\treturn *this;\n> +\t}\n> +\n> +\tQuantized &operator=(QuantizedType x)\n> +\t{\n> +\t\tvalue_ = Traits::toFloat(x);\n> +\t\tquantized_ = x;\n> +\t\treturn *this;\n> +\t}\n> +\n> +\tfloat value() const noexcept { return value_; }\n> +\tQuantizedType quantized() const noexcept { return quantized_; }\n> +\n> +\tbool operator==(const Quantized &other) const noexcept\n> +\t{\n> +\t\treturn quantized_ == other.quantized_;\n> +\t}\n> +\n> +\tbool operator!=(const Quantized &other) const noexcept\n> +\t{\n> +\t\treturn !(*this == other);\n> +\t}\n> +\n> +\tfriend std::ostream &operator<<(std::ostream &out,\n> +\t\t\t\t\tconst Quantized &q)\n> +\t{\n> +\t\tout << \"[\" << utils::hex(q.quantized())\n> +\t\t << \":\" << q.value() << \"]\";\n> +\n> +\t\treturn out;\n> +\t}\n> +\n> +private:\n> +\tQuantizedType quantized_;\n> +\tfloat value_;\n> +};\n> +\n> +} /* namespace ipa */\n> +\n> +} /* namespace libcamera */","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id C16D8C31E9\n\tfor ;\n\tThu, 19 Feb 2026 09:27:50 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id ED52F62231;\n\tThu, 19 Feb 2026 10:27:49 +0100 (CET)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id A8F5962010\n\tfor ;\n\tThu, 19 Feb 2026 10:27:48 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v7 01/15] ipa: libipa: Provide a Quantized data type\n\tsupport","Message-ID":"<20260219092744.GH520738@killaraus.ideasonboard.com>","References":"<20260213-kbingham-quantizers-v7-0-1626b9aaabf1@ideasonboard.com>\n\t<20260213-kbingham-quantizers-v7-1-1626b9aaabf1@ideasonboard.com>","MIME-Version":"1.0","Content-Type":"text/plain; charset=utf-8","Content-Disposition":"inline","Content-Transfer-Encoding":"8bit","In-Reply-To":"<20260213-kbingham-quantizers-v7-1-1626b9aaabf1@ideasonboard.com>","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}}]