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GET /api/1.1/patches/19143/?format=api
{ "id": 19143, "url": "https://patchwork.libcamera.org/api/1.1/patches/19143/?format=api", "web_url": "https://patchwork.libcamera.org/patch/19143/", "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": "<20231013074841.16972-20-naush@raspberrypi.com>", "date": "2023-10-13T07:48:40", "name": "[libcamera-devel,v2,19/20] ipa: rpi: agc: Avoid overwriting caller's statistics pointer", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "b65847ae5d69934706358b88d05e51484bacc303", "submitter": { "id": 34, "url": "https://patchwork.libcamera.org/api/1.1/people/34/?format=api", "name": "Naushir Patuck", "email": "naush@raspberrypi.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/19143/mbox/", "series": [ { "id": 4049, "url": "https://patchwork.libcamera.org/api/1.1/series/4049/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=4049", "date": "2023-10-13T07:48:21", "name": "Raspberry Pi: Preliminary PiSP support", "version": 2, "mbox": "https://patchwork.libcamera.org/series/4049/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/19143/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/19143/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 42F6BC32B8\n\tfor <parsemail@patchwork.libcamera.org>;\n\tFri, 13 Oct 2023 07:49:11 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id E8333629AA;\n\tFri, 13 Oct 2023 09:49:10 +0200 (CEST)", "from mail-wm1-x32b.google.com (mail-wm1-x32b.google.com\n\t[IPv6:2a00:1450:4864:20::32b])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id AF315629A0\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tFri, 13 Oct 2023 09:49:00 +0200 (CEST)", "by mail-wm1-x32b.google.com with SMTP id\n\t5b1f17b1804b1-4056ce55e7eso18580915e9.2\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tFri, 13 Oct 2023 00:49:00 -0700 (PDT)", "from localhost.localdomain ([93.93.133.154])\n\tby smtp.gmail.com with ESMTPSA id\n\tm16-20020a7bca50000000b003fee6e170f9sm1791890wml.45.2023.10.13.00.48.59\n\t(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n\tFri, 13 Oct 2023 00:48:59 -0700 (PDT)" ], "DKIM-Signature": [ "v=1; 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dkim=pass (2048-bit key; \n\tunprotected) header.d=raspberrypi.com\n\theader.i=@raspberrypi.com\n\theader.b=\"LwSkK6aK\"; dkim-atps=neutral", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20230601; t=1697183340; x=1697788140;\n\th=content-transfer-encoding:mime-version:references:in-reply-to\n\t:message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc\n\t:subject:date:message-id:reply-to;\n\tbh=8iMkGXcyRbrdBdUJFvNNmrvtddhoCuMTne7mGzBmNQM=;\n\tb=mP2mN3CeWLjmJeOHWOK2VP8XF9ZLh+bbnnbB1EeWXTyU9S0lwaIpviyqJRfTi+o8Xb\n\t1Y7NPIJyZiEhjme1+mOvHW3MU5LJIotMIMyl8ewidOgJfr4ty5Ywz/BYUpBf0dhcBn88\n\t9UA41+zWOjH7EqIFmKD5XFar2D5IXrDlqTbrLE27Qw/p/8mEyipN/arcM7/Vn90HFsIk\n\tmu8LzCp/A0iCeYk9TIQzxRdrD4Jj3GnKV34ifMJgVXKiqxURVg6ZNAXxxnKCb9mf/zYd\n\tw9No4WTN3IM551IOVUcg3cJZnCsMXtdB1VNhQfg3CL1fjJnGuR4Dk888v6ms6WFbFsyA\n\thZTw==", "X-Gm-Message-State": "AOJu0Yz4i2iqw2qszEjdc+zA239cro/lECEIDo7KoUzdB1l0rbs6sPcN\n\tu5aZEJkazVA9uaic8Dulw3jKetUkYJlxTMRQYRNWNA==", "X-Google-Smtp-Source": "AGHT+IH0CiTHB91Al6PmePCSQqUx8Aq0QhRHE6wPDh0Grb44NoF9xHxvAdM07rwdRFwJ+cgITML0jQ==", "X-Received": "by 2002:a7b:cbd4:0:b0:3fb:b3aa:1c8a with SMTP id\n\tn20-20020a7bcbd4000000b003fbb3aa1c8amr23615813wmi.16.1697183340057; \n\tFri, 13 Oct 2023 00:49:00 -0700 (PDT)", "To": "libcamera-devel@lists.libcamera.org", "Date": "Fri, 13 Oct 2023 08:48:40 +0100", "Message-Id": "<20231013074841.16972-20-naush@raspberrypi.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20231013074841.16972-1-naush@raspberrypi.com>", "References": "<20231013074841.16972-1-naush@raspberrypi.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH v2 19/20] ipa: rpi: agc: Avoid overwriting\n\tcaller's statistics pointer", "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>", "From": "Naushir Patuck via libcamera-devel\n\t<libcamera-devel@lists.libcamera.org>", "Reply-To": "Naushir Patuck <naush@raspberrypi.com>", "Cc": "Jacopo Mondi <jacopo.mondi@ideasonboard.com>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "From: David Plowman <david.plowman@raspberrypi.com>\n\nThe code was inadvertently overwriting the caller's StatisticsPtr,\nmeaning that subsequent algorithms would get the wrong image\nstatistics when AGC channels changed.\n\nThis could be fix using std::ref, though I find the C-style pointer\nfix easier to understand!\n\nSigned-off-by: David Plowman <david.plowman@raspberrypi.com>\nReviewed-by: Naushir Patuck <naush@raspberrypi.com>\nReviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>\n---\n src/ipa/rpi/controller/rpi/agc.cpp | 5 +++--\n 1 file changed, 3 insertions(+), 2 deletions(-)", "diff": "diff --git a/src/ipa/rpi/controller/rpi/agc.cpp b/src/ipa/rpi/controller/rpi/agc.cpp\nindex 870cb4315c42..758da0719b9b 100644\n--- a/src/ipa/rpi/controller/rpi/agc.cpp\n+++ b/src/ipa/rpi/controller/rpi/agc.cpp\n@@ -311,15 +311,16 @@ void Agc::process(StatisticsPtr &stats, Metadata *imageMetadata)\n \t * exist, and call process(). We must make the agc.status metadata record correctly\n \t * which channel this is.\n \t */\n+\tStatisticsPtr *statsPtr = &stats;\n \tif (channelData.statistics && channelData.deviceStatus) {\n \t\tdeviceStatus = *channelData.deviceStatus;\n-\t\tstats = channelData.statistics;\n+\t\tstatsPtr = &channelData.statistics;\n \t} else {\n \t\t/* Can also happen when new channels start. */\n \t\tLOG(RPiAgc, Debug) << \"process: channel \" << channelIndex << \" not seen yet\";\n \t}\n \n-\tchannelData.channel.process(stats, deviceStatus, imageMetadata, channelTotalExposures_);\n+\tchannelData.channel.process(*statsPtr, deviceStatus, imageMetadata, channelTotalExposures_);\n \tauto dur = setCurrentChannelIndexGetExposure(imageMetadata, \"process: no AGC status found\",\n \t\t\t\t\t\t channelIndex);\n \tif (dur)\n", "prefixes": [ "libcamera-devel", "v2", "19/20" ] }