Show a patch.

GET /api/patches/21682/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 21682,
    "url": "https://patchwork.libcamera.org/api/patches/21682/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/21682/",
    "project": {
        "id": 1,
        "url": "https://patchwork.libcamera.org/api/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": "<20241018145856.914816-2-stefan.klug@ideasonboard.com>",
    "date": "2024-10-18T14:58:35",
    "name": "[v2,1/4] ipa: rkisp1: algorithms: agc: Check for correct stats type",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "4952e077ca01f081d8a8ce6d3e856953a9983bb7",
    "submitter": {
        "id": 184,
        "url": "https://patchwork.libcamera.org/api/people/184/?format=api",
        "name": "Stefan Klug",
        "email": "stefan.klug@ideasonboard.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/21682/mbox/",
    "series": [
        {
            "id": 4720,
            "url": "https://patchwork.libcamera.org/api/series/4720/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=4720",
            "date": "2024-10-18T14:58:34",
            "name": "A few small fixes",
            "version": 2,
            "mbox": "https://patchwork.libcamera.org/series/4720/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/21682/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/21682/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 B8281C32AF\n\tfor <parsemail@patchwork.libcamera.org>;\n\tFri, 18 Oct 2024 14:59:06 +0000 (UTC)",
            "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 7480D65391;\n\tFri, 18 Oct 2024 16:59:06 +0200 (CEST)",
            "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 81E8B633C6\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tFri, 18 Oct 2024 16:59:03 +0200 (CEST)",
            "from ideasonboard.com (unknown\n\t[IPv6:2a00:6020:448c:6c00:77a0:ddb9:22bf:b8d9])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 9B1D4514;\n\tFri, 18 Oct 2024 16:57:19 +0200 (CEST)"
        ],
        "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"UImEdBMU\"; dkim-atps=neutral",
        "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1729263439;\n\tbh=DsLgNilDIm96AJIEGiRchxXxpnKCwUlWGN9M09S0XUo=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=UImEdBMUqc2GPifvK1AjKAMZFEJcisN2pawkk9FWKRxtdsqCAZTFJLIyz9dNDVKnW\n\tNh3xMorfoRCh30ESuuFRgegCfZ5sZh3jYbUHjAhI/tGCprzfuXsPT38TkviVkCGAsI\n\trM0hrgVPicDXRGsNP5I+zAFgqTep5RiDtmwgjoeY=",
        "From": "Stefan Klug <stefan.klug@ideasonboard.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "Stefan Klug <stefan.klug@ideasonboard.com>,\n\tKieran Bingham <kieran.bingham@ideasonboard.com>,\n\tLaurent Pinchart <laurent.pinchart@ideasonboard.com>,\n\tPaul Elder <paul.elder@ideasonboard.com>",
        "Subject": "[PATCH v2 1/4] ipa: rkisp1: algorithms: agc: Check for correct stats\n\ttype",
        "Date": "Fri, 18 Oct 2024 16:58:35 +0200",
        "Message-ID": "<20241018145856.914816-2-stefan.klug@ideasonboard.com>",
        "X-Mailer": "git-send-email 2.43.0",
        "In-Reply-To": "<20241018145856.914816-1-stefan.klug@ideasonboard.com>",
        "References": "<20241018145856.914816-1-stefan.klug@ideasonboard.com>",
        "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": "Sometimes the ISP produces statistics only with a subset of statistic\ntypes being valid. It doesn't happen normally, but was observed in the\nwild. Check for the RKISP1_CIF_ISP_STAT_AUTOEXP bit to prevent using\ninvalid or outdated data. As it doesn't happen regularly add an error\nmessage to get notified when it happens.\n\nSigned-off-by: Stefan Klug <stefan.klug@ideasonboard.com>\nReviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>\nReviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\nReviewed-by: Paul Elder <paul.elder@ideasonboard.com>\n\n---\nChanges in v2:\n- Added error message\n- Made condition more readable\n- Collected tags\n---\n src/ipa/rkisp1/algorithms/agc.cpp | 4 ++--\n 1 file changed, 2 insertions(+), 2 deletions(-)",
    "diff": "diff --git a/src/ipa/rkisp1/algorithms/agc.cpp b/src/ipa/rkisp1/algorithms/agc.cpp\nindex 17d074d9c03e..f03136836fd7 100644\n--- a/src/ipa/rkisp1/algorithms/agc.cpp\n+++ b/src/ipa/rkisp1/algorithms/agc.cpp\n@@ -398,8 +398,9 @@ void Agc::process(IPAContext &context, [[maybe_unused]] const uint32_t frame,\n \t\t  IPAFrameContext &frameContext, const rkisp1_stat_buffer *stats,\n \t\t  ControlList &metadata)\n {\n-\tif (!stats) {\n+\tif (!stats || !(stats->meas_type & RKISP1_CIF_ISP_STAT_AUTOEXP)) {\n \t\tfillMetadata(context, frameContext, metadata);\n+\t\tLOG(RkISP1Agc, Error) << \"AUTOEXP data is missing in statistics\";\n \t\treturn;\n \t}\n \n@@ -412,7 +413,6 @@ void Agc::process(IPAContext &context, [[maybe_unused]] const uint32_t frame,\n \t */\n \n \tconst rkisp1_cif_isp_stat *params = &stats->params;\n-\tASSERT(stats->meas_type & RKISP1_CIF_ISP_STAT_AUTOEXP);\n \n \t/* The lower 4 bits are fractional and meant to be discarded. */\n \tHistogram hist({ params->hist.hist_bins, context.hw->numHistogramBins },\n",
    "prefixes": [
        "v2",
        "1/4"
    ]
}