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{ "id": 26668, "url": "https://patchwork.libcamera.org/api/1.1/covers/26668/?format=api", "web_url": "https://patchwork.libcamera.org/cover/26668/", "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": "<20260507-extensible-stats-v2-0-dfca939ad327@ideasonboard.com>", "date": "2026-05-07T10:07:53", "name": "[v2,0/3] ipa: libipa: Add support for V4L2 ISP statistics", "submitter": { "id": 143, "url": "https://patchwork.libcamera.org/api/1.1/people/143/?format=api", "name": "Jacopo Mondi", "email": "jacopo.mondi@ideasonboard.com" }, "mbox": "https://patchwork.libcamera.org/cover/26668/mbox/", "series": [ { "id": 5916, "url": "https://patchwork.libcamera.org/api/1.1/series/5916/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5916", "date": "2026-05-07T10:07:53", "name": "ipa: libipa: Add support for V4L2 ISP statistics", "version": 2, "mbox": "https://patchwork.libcamera.org/series/5916/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/covers/26668/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 27A8FBDCB5\n\tfor <parsemail@patchwork.libcamera.org>;\n\tThu, 7 May 2026 10:08:11 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 706DD63024;\n\tThu, 7 May 2026 12:08:09 +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 A045262010\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 7 May 2026 12:08:06 +0200 (CEST)", "from [192.168.1.104] (net-93-65-100-155.cust.vodafonedsl.it\n\t[93.65.100.155])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 36614B63;\n\tThu, 7 May 2026 12:08:02 +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=\"HXvHWi9T\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1778148482;\n\tbh=fdBwTgzmhb2OtDPff8FFBSIAVeeE4uq8dI544aV+S7U=;\n\th=From:Subject:Date:To:Cc:From;\n\tb=HXvHWi9TCvhfR/ZTDF0RbG9nKweKxORclW3FZ7c1Mn4p/i8XDn2ah6SOwE55WJ2Fn\n\t8WmNUhaPGxmWSbwkkCD5znt2wn5S1Qd4tb/YrRTGkhoiyP9GjBTRoqmT7HBVl8PkUq\n\tyulZbiGRGJ18X/Uaj+HH14YEIaeYE3E1j/irkWp8=", "From": "Jacopo Mondi <jacopo.mondi@ideasonboard.com>", "Subject": "[PATCH v2 0/3] ipa: libipa: Add support for V4L2 ISP statistics", "Date": "Thu, 07 May 2026 12:07:53 +0200", "Message-Id": "<20260507-extensible-stats-v2-0-dfca939ad327@ideasonboard.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "X-B4-Tracking": "v=1; b=H4sIAHlk/GkC/32NQQrCMBBFr1JmbSQNtimuvEfpItOMdkATyYRQK\n\tb27sQdw+R789zcQSkwC12aDRIWFY6hgTg3MiwsPUuwrg9Gm153uFK2ZgjA+SUl2WZS1xgwW6YJ\n\tugDp7J7rzeiTHqfLCkmP6HA+l/dk/sdIqrTR2/WyxRfT9jT05iQGjS/48xxdM+75/ATksGCC3A\n\tAAA", "X-Change-ID": "20260505-extensible-stats-772287be4ba8", "To": "libcamera-devel@lists.libcamera.org, \n\tAntoine Bouyer <antoine.bouyer@nxp.com>", "Cc": "Jacopo Mondi <jacopo.mondi@ideasonboard.com>, Kieran Bingham\n\t<kieran.bingham@ideasonboard.com>, Laurent Pinchart\n\t<laurent.pinchart@ideasonboard.com>, =?utf-8?b?QmFybmFiw6FzIFDFkWN6?=\n\t=?utf-8?q?e?= <barnabas.pocze@ideasonboard.com>", "X-Mailer": "b4 0.14.3", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=1531;\n\ti=jacopo.mondi@ideasonboard.com; h=from:subject:message-id;\n\tbh=fdBwTgzmhb2OtDPff8FFBSIAVeeE4uq8dI544aV+S7U=;\n\tb=owEBbQKS/ZANAwAKAXI0Bo8WoVY8AcsmYgBp/GSF2BHUi9EPcCqJ8/qGmxhHJdInqtC2HgBy9\n\tTrVBlqOc+yJAjMEAAEKAB0WIQS1xD1IgJogio9YOMByNAaPFqFWPAUCafxkhQAKCRByNAaPFqFW\n\tPAUsD/9QXiPj1/eL8qoHcfuTnwTCPUtR8fbFnqmAGij2RmeGgoLnTYCGGkpe9zKklsnoh/O/06h\n\tO4NMyhYZykH/KYIKPvyHY0bngyLQrOE01Y0+86BUIMlMoZdw4yl/2seFtr2Gtw0P5NstxOaG0N3\n\tPRGb5/8bhg0hSrRT2hXmV/AnsTfNf+gi+IIYrfNGnGFYBhSWMS7pm7VsUw4Le6w/CNhfyod831m\n\trdL55e0cQ9UMCei8InGfSGVV+7Vjb/DS9mQy5jCvR7QNFl85tKswbUOe62nXzz87R5EuVV/uHXC\n\tkPVOia1nmQn4n8BJYoEIRYceMZ3yPfxrBASNm5s6BqlmpGibBW6nbyHDWW9OJN36T7K2PpvRdVl\n\tVqQ7e8jNJV5ZaYSDLIfIDDMNlPsU5ls8vm+jjPLI7m+3IlobNJ9BUQL89q1PXrvagd+7Y36gGm/\n\t7XpjySsHK7No73OMuZjuCmIUPG8ETFydHGpKbfFfHlOLzgcXTLx8uFgBtq0OnRjn4sLI7Y23+3r\n\tJTedyVW9zwrGj+tBtbYEVEwA4fUhh1ZDOaMoHU+toAGAY56Q7ZBfoXeDNiZOLJ56Vg6gTEg6YwU\n\t+hZTBBD33EmE73qaQJdEoDIcXEu0/FwT7aM5dR7nm7tBdaQnkhiQpS0VzwWGzcAdjK5Azgr3HIz\n\tTU3Yu8rL4lJkJ9Q==", "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": "<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": "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 <jacopo.mondi@ideasonboard.com>\n---\nChanges in v2:\n- Address Kieran's and Barnabas' comment\n\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 | 123 ++++++++++++++++++++++\n 5 files changed, 432 insertions(+), 48 deletions(-)\n---\nbase-commit: 39d8133fd17c1e963981490105a154d78eb6cb43\nchange-id: 20260505-extensible-stats-772287be4ba8\n\nBest regards," }