{"id":26635,"url":"https://patchwork.libcamera.org/api/covers/26635/?format=json","web_url":"https://patchwork.libcamera.org/cover/26635/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/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":"<20260505-extensible-stats-v1-0-0b56c7b1bbd6@ideasonboard.com>","date":"2026-05-05T16:11:08","name":"[0/3] ipa: libipa: Add support for V4L2 ISP statistics","submitter":{"id":143,"url":"https://patchwork.libcamera.org/api/people/143/?format=json","name":"Jacopo Mondi","email":"jacopo.mondi@ideasonboard.com"},"mbox":"https://patchwork.libcamera.org/cover/26635/mbox/","series":[{"id":5908,"url":"https://patchwork.libcamera.org/api/series/5908/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=5908","date":"2026-05-05T16:11:08","name":"ipa: libipa: Add support for V4L2 ISP statistics","version":1,"mbox":"https://patchwork.libcamera.org/series/5908/mbox/"}],"comments":"https://patchwork.libcamera.org/api/covers/26635/comments/","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 1F284BDCB5\n\tfor ;\n\tTue, 5 May 2026 16:11:24 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id EF56A62E9D;\n\tTue, 5 May 2026 18:11:22 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 8DBFB62DC4\n\tfor ;\n\tTue, 5 May 2026 18:11:21 +0200 (CEST)","from [192.168.1.83] (unknown\n\t[IPv6:2001:b07:6462:5de2:520d:d7a3:63ca:99e8])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id A27A41F8;\n\tTue, 5 May 2026 18:11:18 +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=\"JQcwki/i\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1777997478;\n\tbh=9fh3qx5QcSkBwreQaHiLfKBz4thWcIN4g1mudoIl4wY=;\n\th=From:Subject:Date:To:Cc:From;\n\tb=JQcwki/ikHhPvoEvxRYlp7xmayWzVe2RIrEde2tCQmGg17SvUrxbuWUrrHuP+j2h3\n\t+UZXjZe1zSDX6WFgIXrPRAouwTMCKoA6YxyPKmTNsIPSjUWGZW3A8Gr4cD7X3Iseur\n\tc1Cu7yEuXVPpZdo4Bo8snKXc4fcAW0zjaW0Li86c=","From":"Jacopo Mondi ","Subject":"[PATCH 0/3] ipa: libipa: Add support for V4L2 ISP statistics","Date":"Tue, 05 May 2026 18:11:08 +0200","Message-Id":"<20260505-extensible-stats-v1-0-0b56c7b1bbd6@ideasonboard.com>","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","X-B4-Tracking":"v=1; b=H4sIAJwW+mkC/x3MQQqAIBBG4avErBNMKqOrRAutvxoIC0ciiO6et\n\tPwW7z0kiAyhvngo4mLhI2RUZUHT5sIKxXM2GW1a3ehG4U4Iwn6HkuSSKGuN6axH7V1HOTsjFr7\n\t/5TC+7wfQRz1sYgAAAA==","X-Change-ID":"20260505-extensible-stats-772287be4ba8","To":"libcamera-devel@lists.libcamera.org, \n\tAntoine Bouyer ","Cc":"Jacopo Mondi ","X-Mailer":"b4 0.14.3","X-Developer-Signature":"v=1; a=openpgp-sha256; l=1466;\n\ti=jacopo.mondi@ideasonboard.com; h=from:subject:message-id;\n\tbh=9fh3qx5QcSkBwreQaHiLfKBz4thWcIN4g1mudoIl4wY=;\n\tb=owEBbQKS/ZANAwAKAXI0Bo8WoVY8AcsmYgBp+haoBUJ53iWPZ/fVmrZAB5FueL0IETtNrdXyB\n\tLBGfD0Xnb6JAjMEAAEKAB0WIQS1xD1IgJogio9YOMByNAaPFqFWPAUCafoWqAAKCRByNAaPFqFW\n\tPLKlEACGEgA1tvvmFu7prcUAvcLTWUgDDwNYvoXoZfPfiHK/nPevVKX2LCDsrjuN5TZbrVq/7bV\n\tSHw8hKGOxzbhIbp7tP9piP+3Bi3C0hpzmkPesm/L5ZFL9xeTEgqJrTRychqHxYmOpLCvQDyz2oI\n\t3iVe3M/WfiO8nn3jJNU1uCuJNJwI0mYwg8/R1GEa2yS6bWDMG8Pc9qCVf7iwcVnIgipsuP+oU50\n\tYQ9yaQnPlURYvJmHpWR9lOKoBsPyjk9sfMeiQETtQfu/t9sOtCk7F5wTD2m3JYEgAFJ3/Q9/2fN\n\teZn0tlqWle4RUKij1qeykoDi8aHh7u7IK0CcRR0JjclkJkBNKseFAhgNwEv6GJuwMmcms02CPjZ\n\ti0Dtsc6vvoV9a/wDUNvLF/xPMYfkAe+yF+DokBKPPC3P9uwnoma35rrTq8XNqQ38+s4vCV6trUn\n\tmh1Ng/OKI3+NRVHtzI32u59+D046pVUFEDEun8WF4QOt/ay3V6x7dDKdRorTUYcLd2VXDTUvYP9\n\tDJhEGu+1ObNYHBiZQXTz/IvnfTJDqB4B+BPqCxeoKl8ga9ydGDzAaLUFyiMDCnlSVS8M+YgXFWL\n\tNe82uhfLp3+glDKcpkxUl8nphHomKlWDjiqRmDmeT4jrnnsJd9h8wUgbPectXZKNitcvrschVPj\n\tk9bZimWzaGo5eaA==","X-Developer-Key":"i=jacopo.mondi@ideasonboard.com; a=openpgp;\n\tfpr=72392EDC88144A65C701EA9BA5826A2587AD026B","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":"Support for extensible stats has been submitted for review first by\nAntonie then broken-out to a dedicated patch series here:\nhttps://patchwork.linuxtv.org/project/linux-media/list/?series=24772\n\nWith the same spirit as V4L2Params, introduce a V4L2Stats class to help\nIPA modules handle a buffer of V4L2 ISP statistics.\n\nThere are currently no users in-tree of the class but we have an example\nuser in the RPP-X1 IPA module available at:\nhttps://gitlab.freedesktop.org/jmondi/libcamera/-/blob/v4h/jmondi/rppx1/src/ipa/rppx1/stats.h\nhttps://gitlab.freedesktop.org/jmondi/libcamera/-/blob/v4h/jmondi/rppx1/src/ipa/rppx1/algorithms/awb.cpp#L365\n\non top, a drive-by change to V4L2Params.\n\nSigned-off-by: Jacopo Mondi \n---\nJacopo Mondi (3):\n include: v4l2-isp: Update to support extensible stats\n ipa: libipa: Introduce V4L2Stats\n ipa: libipa: v4l2_params: Fix code example in doc\n\n include/linux/media/v4l2-isp.h | 125 ++++++++++++++---------\n src/ipa/libipa/meson.build | 2 +\n src/ipa/libipa/v4l2_params.cpp | 4 +-\n src/ipa/libipa/v4l2_stats.cpp | 226 +++++++++++++++++++++++++++++++++++++++++\n src/ipa/libipa/v4l2_stats.h | 124 ++++++++++++++++++++++\n 5 files changed, 433 insertions(+), 48 deletions(-)\n---\nbase-commit: 2106c9f9867afd33909a56550e558b907c63fac3\nchange-id: 20260505-extensible-stats-772287be4ba8\n\nBest regards,"}