Cover Letter Detail
Show a cover letter.
GET /api/1.1/covers/23054/?format=api
{ "id": 23054, "url": "https://patchwork.libcamera.org/api/1.1/covers/23054/?format=api", "web_url": "https://patchwork.libcamera.org/cover/23054/", "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": "<20250326134727.279393-1-stefan.klug@ideasonboard.com>", "date": "2025-03-26T13:47:19", "name": "[v2,0/3] rkisp1: Reduce oscillations on startup", "submitter": { "id": 184, "url": "https://patchwork.libcamera.org/api/1.1/people/184/?format=api", "name": "Stefan Klug", "email": "stefan.klug@ideasonboard.com" }, "mbox": "https://patchwork.libcamera.org/cover/23054/mbox/", "series": [ { "id": 5086, "url": "https://patchwork.libcamera.org/api/1.1/series/5086/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5086", "date": "2025-03-26T13:47:19", "name": "rkisp1: Reduce oscillations on startup", "version": 2, "mbox": "https://patchwork.libcamera.org/series/5086/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/covers/23054/comments/", "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 040F6C323E\n\tfor <parsemail@patchwork.libcamera.org>;\n\tWed, 26 Mar 2025 13:48:05 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id A47C768969;\n\tWed, 26 Mar 2025 14:48:03 +0100 (CET)", "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id B1FB968950\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 26 Mar 2025 14:48:01 +0100 (CET)", "from ideasonboard.com (unknown\n\t[IPv6:2a00:6020:448c:6c00:b21a:42f4:9f3:1df6])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 9B5FE3A4;\n\tWed, 26 Mar 2025 14:46:13 +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=\"me3eQhpF\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1742996773;\n\tbh=R4vb4SbSonixNEI6uFq49WpwamWzRe8aMaESrtPvIYw=;\n\th=From:To:Cc:Subject:Date:From;\n\tb=me3eQhpFE6GeacQb39pjNvnk3IPm0Mn/TQ6PfA0ilp0KpHF7fpAh42qMzxluDupkd\n\trzgkWJhI8pGWNdkWirbly79P1Exh574ncY+Lov9x9hsrreqlEqQbl9ldVLg9jBkfU6\n\tJ10mDh88QZWVudsHYtfOfEKEH6tnY4y5RrvRU0qM=", "From": "Stefan Klug <stefan.klug@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Cc": "Stefan Klug <stefan.klug@ideasonboard.com>", "Subject": "[PATCH v2 0/3] rkisp1: Reduce oscillations on startup", "Date": "Wed, 26 Mar 2025 14:47:19 +0100", "Message-ID": "<20250326134727.279393-1-stefan.klug@ideasonboard.com>", "X-Mailer": "git-send-email 2.43.0", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "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>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "Hi all,\n\nThis tiny series further reduces startup AE oscillations on rkisp1.\nWhile analyzing the issue it got clear that the regulation had to cope\nwith images that had an exposure value of 0 which should not happen in\nfirst place.\n\nPatch 1 adds a log message that could help debug such ill behavior.\nPatch 2 add error handling for the exposurevalue == 0 case.\nPatch 3 fixes it for rkisp1.\n\nPlease see the individual patches for the technical details.\n\nBest regards,\nStefan\n\nChanges in v2:\n- Some fixes from review (see individual changelogs)\n\nStefan Klug (3):\n ipa: rkisp1: Add debug log for the sensor controls being set\n ipa: libipa: agc_mean_luminance: Error out when effectiveExposureValue\n is zero\n ipa: rksip1: Remove setControls(0) to reduce startup oscillations\n\n src/ipa/libipa/agc_mean_luminance.cpp | 12 ++++++++++++\n src/ipa/rkisp1/rkisp1.cpp | 7 +++++--\n 2 files changed, 17 insertions(+), 2 deletions(-)" }