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{ "id": 10512, "url": "https://patchwork.libcamera.org/api/1.1/patches/10512/?format=api", "web_url": "https://patchwork.libcamera.org/patch/10512/", "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": "<20201126145005.8838-2-david.plowman@raspberrypi.com>", "date": "2020-11-26T14:50:04", "name": "[libcamera-devel,v2,1/2] libcamera: controls: Add DigitalGain control", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "a34631626761459e19eeac80a8c7588fef5643c7", "submitter": { "id": 42, "url": "https://patchwork.libcamera.org/api/1.1/people/42/?format=api", "name": "David Plowman", "email": "david.plowman@raspberrypi.com" }, "delegate": { "id": 14, "url": "https://patchwork.libcamera.org/api/1.1/users/14/?format=api", "username": "pinchartl", "first_name": "Laurent", "last_name": "Pinchart", "email": "laurent.pinchart@ideasonboard.com" }, "mbox": "https://patchwork.libcamera.org/patch/10512/mbox/", "series": [ { "id": 1485, "url": "https://patchwork.libcamera.org/api/1.1/series/1485/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=1485", "date": "2020-11-26T14:50:03", "name": "Digital gain control", "version": 2, "mbox": "https://patchwork.libcamera.org/series/1485/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/10512/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/10512/checks/", "tags": {}, "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "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 EC284BE08A\n\tfor <parsemail@patchwork.libcamera.org>;\n\tThu, 26 Nov 2020 14:50:11 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 371E86346A;\n\tThu, 26 Nov 2020 15:50:11 +0100 (CET)", "from mail-ej1-x644.google.com (mail-ej1-x644.google.com\n\t[IPv6:2a00:1450:4864:20::644])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 1897B6346A\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 26 Nov 2020 15:50:09 +0100 (CET)", "by mail-ej1-x644.google.com with SMTP id f9so1103577ejw.4\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 26 Nov 2020 06:50:09 -0800 (PST)", "from pi4-davidp.lan (plowpeople3.plus.com. [80.229.223.72])\n\tby smtp.gmail.com with ESMTPSA id\n\tcw26sm3249359ejb.47.2020.11.26.06.50.07\n\t(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n\tThu, 26 Nov 2020 06:50:07 -0800 (PST)" ], "Authentication-Results": "lancelot.ideasonboard.com;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n\tunprotected) header.d=raspberrypi.com header.i=@raspberrypi.com\n\theader.b=\"Vx6SzyaR\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=raspberrypi.com; s=google;\n\th=from:to:cc:subject:date:message-id:in-reply-to:references\n\t:mime-version:content-transfer-encoding;\n\tbh=3vIKDhkdBHpJGsSr1ppRdTN17fdllSE311fHIekkoBE=;\n\tb=Vx6SzyaRSLU+Zj9S5qkVkPku6Wu9PqPziXi52ZckY/mz9flxVzGI2Al2ENA6yBVDPp\n\tm/Fa+7O2gMLHYqV3BC6vigNO3R59nh1oapii3V1XjMfJVyGh5FjAUTSepXSfc9BXGJHX\n\tX71onq47BR4xrSSpXzDbx90ut824PvKGO7Dne5jt5ZoLaxsX1Vk3pvOXbodcU+XqE30z\n\tCpknEOJyDCFyGuAfyHvIwbMQTyFBflcaX4ep1X7U1XWzrNBlZdDRFBvPX3njMsXseA82\n\t5SuLNApz9t7O+iG7nf5Yj0pEYiYYS7b52/1+RJq+as8hggvNY25s+56m6sHW7cPeghwF\n\td7cg==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20161025;\n\th=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to\n\t:references:mime-version:content-transfer-encoding;\n\tbh=3vIKDhkdBHpJGsSr1ppRdTN17fdllSE311fHIekkoBE=;\n\tb=nCTsO1JZmaabdhYMbtjMLtbd5/3+GeEONQytfSxE843PBSf8MHwwLfqtVrtriUdJF7\n\tGg74WI39LUckBTdA4H3ZFk3NwsL+T8KCUNf51vySgDJmy9x5htVqAxx2XVfzt+Z3cUgB\n\t3pp3eTckclIyn3NG90M/IiG1vC03DoAtfyhyTOaGsqVrYaTpxR8U+z4Fb0dRxSrrHJli\n\tEMFG1ivzMIWp7fJJesyFjo8CX+RRZYlr9b2EqUdDH/45vfUUT1brR/2pmu1wuv30vnDa\n\tJGOSUZbB74e7RnidCoXynv9kdVY5+UsyE2Bd5st87pb9mRefsLEIZWyiNv2t8+/+N+Lo\n\tZnFg==", "X-Gm-Message-State": "AOAM530Tjle2uICT/7fSrQyHPhE/DDcSQfrdzYYFKjpCC25y2He9zLWu\n\tmM+tf3JeLjZfq1m6Xj/FQ6dkap0CuomlQCBc", "X-Google-Smtp-Source": "ABdhPJxGD7wqa2MQgmIqu3qQU/1a2M26v/8IQ4mbRmL0dbW9KX6jCXagGRk9/Muptsn+/M+ouktT2Q==", "X-Received": "by 2002:a17:906:b53:: with SMTP id\n\tv19mr3059354ejg.250.1606402208421; \n\tThu, 26 Nov 2020 06:50:08 -0800 (PST)", "From": "David Plowman <david.plowman@raspberrypi.com>", "To": "libcamera-devel@lists.libcamera.org", "Date": "Thu, 26 Nov 2020 14:50:04 +0000", "Message-Id": "<20201126145005.8838-2-david.plowman@raspberrypi.com>", "X-Mailer": "git-send-email 2.20.1", "In-Reply-To": "<20201126145005.8838-1-david.plowman@raspberrypi.com>", "References": "<20201126145005.8838-1-david.plowman@raspberrypi.com>", "MIME-Version": "1.0", "Subject": "[libcamera-devel] [PATCH v2 1/2] libcamera: controls: Add\n\tDigitalGain 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>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "This control reports the global digital gain applied by the pipeline\nas a whole, after capturing a raw image from the sensor.\n\nSigned-off-by: David Plowman <david.plowman@raspberrypi.com>\n---\n src/libcamera/control_ids.yaml | 17 +++++++++++++++++\n 1 file changed, 17 insertions(+)", "diff": "diff --git a/src/libcamera/control_ids.yaml b/src/libcamera/control_ids.yaml\nindex c8874fa9..75a00f79 100644\n--- a/src/libcamera/control_ids.yaml\n+++ b/src/libcamera/control_ids.yaml\n@@ -530,4 +530,21 @@ controls:\n This control is only present when the pipeline supports scaling. Its\n maximum valid value is given by the properties::ScalerCropMaximum\n property, and the two can be used to implement digital zoom.\n+\n+ - DigitalGain:\n+ type: float\n+ description: |\n+ Digital gain value applied during the processing steps applied\n+ to the image as captured from the sensor.\n+\n+ The global digital gain factor is applied to all the colour channels\n+ of the RAW image. Different pipeline models are free to\n+ specify how the global gain factor applies to each separate\n+ channel.\n+\n+ If an imaging pipeline applies digital gain in distinct\n+ processing steps, this value indicates their total sum.\n+ Pipelines are free to decide how to adjust each processing\n+ step to respect the received gain factor and shall report\n+ their total value in the request metadata.\n ...\n", "prefixes": [ "libcamera-devel", "v2", "1/2" ] }