{"id":26205,"url":"https://patchwork.libcamera.org/api/1.1/patches/26205/?format=json","web_url":"https://patchwork.libcamera.org/patch/26205/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/1.1/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260219-kbingham-quantizers-v8-8-2b6ff68ead26@ideasonboard.com>","date":"2026-02-19T15:05:09","name":"[v8,08/15] libcamera: controls: Define a new core Hue control","commit_ref":"da967ed63d22c4a4dbda4e7c218d11440b5747fa","pull_url":null,"state":"accepted","archived":false,"hash":"149900c7e895d5d7642085089f6d94139ff29180","submitter":{"id":4,"url":"https://patchwork.libcamera.org/api/1.1/people/4/?format=json","name":"Kieran Bingham","email":"kieran.bingham@ideasonboard.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/26205/mbox/","series":[{"id":5802,"url":"https://patchwork.libcamera.org/api/1.1/series/5802/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=5802","date":"2026-02-19T15:05:01","name":"libipa: Introduce a Quantized type","version":8,"mbox":"https://patchwork.libcamera.org/series/5802/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/26205/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/26205/checks/","tags":{},"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 64909C32EA\n\tfor ;\n\tThu, 19 Feb 2026 15:05:26 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 5C58C62294;\n\tThu, 19 Feb 2026 16:05:19 +0100 (CET)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id CB8FE62266\n\tfor ;\n\tThu, 19 Feb 2026 16:05:10 +0100 (CET)","from ping.linuxembedded.co.uk\n\t(cpc89244-aztw30-2-0-cust6594.18-1.cable.virginm.net [86.31.185.195])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 946B519DB;\n\tThu, 19 Feb 2026 16:04:17 +0100 (CET)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"N0hd7bdN\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1771513457;\n\tbh=IQN5mfMyGVYat62QadSljdKhCwzL3IKFYLwXG9YzV8o=;\n\th=From:Date:Subject:References:In-Reply-To:To:Cc:From;\n\tb=N0hd7bdNd3EDuwxx30S4roWEyIYKQeFSMhtdtupk7WYLA9/S80M9/HCUwzUsDL5eO\n\tWNur3kxXlg9wfpBa5ZvPhRikvA4TDhHWzlQ/R+LJRQdEGu2FESeAvlekkzBlL98DPx\n\th595ug28VI0pR58f18I/yGMSgyYmwltEDMMZTInE=","From":"Kieran Bingham ","Date":"Thu, 19 Feb 2026 15:05:09 +0000","Subject":"[PATCH v8 08/15] libcamera: controls: Define a new core Hue control","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"8bit","Message-Id":"<20260219-kbingham-quantizers-v8-8-2b6ff68ead26@ideasonboard.com>","References":"<20260219-kbingham-quantizers-v8-0-2b6ff68ead26@ideasonboard.com>","In-Reply-To":"<20260219-kbingham-quantizers-v8-0-2b6ff68ead26@ideasonboard.com>","To":"libcamera-devel@lists.libcamera.org","Cc":"Kieran Bingham , \n\t\"van Veen, Stephan\" , \n\tIsaac Scott , \n\tPaul Elder , \n\tLaurent Pinchart , \n\tStefan Klug ","X-Mailer":"b4 0.14.3","X-Developer-Signature":"v=1; a=ed25519-sha256; t=1771513507; l=1747;\n\ti=kieran.bingham@ideasonboard.com; s=20260207;\n\th=from:subject:message-id; \n\tbh=KKbPES795OS8Z0E+MjbsA9rZOX36xmjEzpI1sO/XrwI=;\n\tb=xgyZhu4o2LniG15nhm6b9jK3q0LwErvwG5kpB4lgZeCrnMZVMfwPgON6uHJzvNeJgzrqoxNcz\n\tOebcqLuIAcbBcrsygs//3mCErcl1k0SKKMhTODYfMqT+6CAdzbc2kxl","X-Developer-Key":"i=kieran.bingham@ideasonboard.com; a=ed25519;\n\tpk=FVXKN7YuwHc6UtbRUeTMAmranfsQomA+vnilfglWdaY=","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\" "},"content":"From: \"van Veen, Stephan\" \n\nDefine a new control to support configuration of Hue adjustments when\nsupported by the available platform.\n\nReviewed-by: Isaac Scott \nSigned-off-by: van Veen, Stephan \n[Kieran: Rework to define as a rotation in degrees]\nReviewed-by: Paul Elder \nReviewed-by: Laurent Pinchart \nReviewed-by: Stefan Klug \nSigned-off-by: Kieran Bingham \n\n---\n\nv8:\n - Use [-180, 180] to allow metadata expectations to be met (without\n changing sign on an input control)\n---\n src/libcamera/control_ids_core.yaml | 15 +++++++++++++++\n 1 file changed, 15 insertions(+)","diff":"diff --git a/src/libcamera/control_ids_core.yaml b/src/libcamera/control_ids_core.yaml\nindex f26a1b1b08bd..89991d03d79a 100644\n--- a/src/libcamera/control_ids_core.yaml\n+++ b/src/libcamera/control_ids_core.yaml\n@@ -1361,4 +1361,19 @@ controls:\n description: |\n Enable or disable the lens shading correction.\n \n+ - Hue:\n+ type: float\n+ direction: inout\n+ description: |\n+ Adjusts the image hue (colour rotation) in degrees, as defined in\n+ the HSL/HSV colour model.\n+\n+ The value represents a rotation around the hue circle in HSL/HSV space:\n+ positive values rotate hues clockwise (for example a +60° turns\n+ Red hues to Yellow hues), and negative values rotate counter-clockwise\n+ (a -60° turns Red hues to Magenta hues).\n+\n+ The nominal range is [-180, 180], where 0° leaves hues unchanged and the\n+ range wraps around continuously, with 180° == -180°.\n+\n ...\n","prefixes":["v8","08/15"]}