{"id":24548,"url":"https://patchwork.libcamera.org/api/covers/24548/?format=json","web_url":"https://patchwork.libcamera.org/cover/24548/","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":"<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/people/34/?format=json","name":"Naushir Patuck","email":"naush@raspberrypi.com"},"mbox":"https://patchwork.libcamera.org/cover/24548/mbox/","series":[{"id":5474,"url":"https://patchwork.libcamera.org/api/series/5474/?format=json","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":"","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 ;\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 ;\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 ;\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 ","To":"libcamera-devel@lists.libcamera.org","Cc":"David Plowman ,\n\tNick Hollinghurst ,\n\tNaushir Patuck ","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":"","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":"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"}