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{ "id": 24548, "url": "https://patchwork.libcamera.org/api/1.1/covers/24548/?format=api", "web_url": "https://patchwork.libcamera.org/cover/24548/", "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": "<20251002133523.293413-1-naush@raspberrypi.com>", "date": "2025-10-02T13:26:03", "name": "[v1,0/4] Raspberry Pi: Decompanding support", "submitter": { "id": 34, "url": "https://patchwork.libcamera.org/api/1.1/people/34/?format=api", "name": "Naushir Patuck", "email": "naush@raspberrypi.com" }, "mbox": "https://patchwork.libcamera.org/cover/24548/mbox/", "series": [ { "id": 5474, "url": "https://patchwork.libcamera.org/api/1.1/series/5474/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5474", "date": "2025-10-02T13:26:03", "name": "Raspberry Pi: Decompanding support", "version": 1, "mbox": "https://patchwork.libcamera.org/series/5474/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/covers/24548/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 DF0E4C328C\n\tfor <parsemail@patchwork.libcamera.org>;\n\tThu, 2 Oct 2025 13:35:33 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 6A4B46B5FE;\n\tThu, 2 Oct 2025 15:35:32 +0200 (CEST)", "from mail-wm1-x333.google.com (mail-wm1-x333.google.com\n\t[IPv6:2a00:1450:4864:20::333])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 48A016B5A2\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 2 Oct 2025 15:35:30 +0200 (CEST)", "by mail-wm1-x333.google.com with SMTP id\n\t5b1f17b1804b1-46e2f4167b9so696295e9.1\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 02 Oct 2025 06:35:30 -0700 (PDT)", "from NAUSH-P-DELL.pitowers.org ([93.93.133.154])\n\tby smtp.gmail.com with ESMTPSA id\n\t5b1f17b1804b1-46e6918bdebsm40396015e9.9.2025.10.02.06.35.28\n\t(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n\tThu, 02 Oct 2025 06:35:28 -0700 (PDT)" ], "Authentication-Results": "lancelot.ideasonboard.com; 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\n\tThu, 02 Oct 2025 06:35:29 -0700 (PDT)", "From": "Naushir Patuck <naush@raspberrypi.com>", "To": "libcamera-devel@lists.libcamera.org", "Cc": "David Plowman <david.plowman@raspberrypi.com>,\n\tNick Hollinghurst <nick.hollinghurst@raspberrypi.com>,\n\tNaushir Patuck <naush@raspberrypi.com>", "Subject": "[PATCH v1 0/4] Raspberry Pi: Decompanding support", "Date": "Thu, 2 Oct 2025 14:26:03 +0100", "Message-ID": "<20251002133523.293413-1-naush@raspberrypi.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,\n\nThis series is a successor to [1] adding support for sensor data decompanding in\nthe frontend.\n\nPatch 1 adds support for the algorithm in the IPA, and patches 2-4 update the\ncode to provide initial values to the hardware before the sensor starts\nstreaming. Without these patches, the first 1-2 frames would not have the\ndecompanding enabled.\n\nThanks,\nNaush\n\n[1]: https://patchwork.libcamera.org/patch/24540/\n\nNaushir Patuck (3):\n ipa: rpi: Add FE globals as a parameter to applyDecompand()\n ipa: rpi: pisp: Add a DecompandAlgorithm class\n ipa: rpi: pisp: Allow an initial decompand curve to be set on the FE\n\nSena Asotani (1):\n ipa: rpi: pisp: Add decompand support using PiSP hardware block\n\n src/ipa/rpi/controller/decompand_algorithm.h | 26 ++++++++\n src/ipa/rpi/controller/decompand_status.h | 8 +++\n src/ipa/rpi/controller/meson.build | 1 +\n src/ipa/rpi/controller/rpi/decompand.cpp | 66 ++++++++++++++++++++\n src/ipa/rpi/controller/rpi/decompand.h | 31 +++++++++\n src/ipa/rpi/pisp/pisp.cpp | 56 +++++++++++++++++\n 6 files changed, 188 insertions(+)\n create mode 100644 src/ipa/rpi/controller/decompand_algorithm.h\n create mode 100644 src/ipa/rpi/controller/decompand_status.h\n create mode 100644 src/ipa/rpi/controller/rpi/decompand.cpp\n create mode 100644 src/ipa/rpi/controller/rpi/decompand.h" }