[{"id":36075,"web_url":"https://patchwork.libcamera.org/comment/36075/","msgid":"","date":"2025-10-02T14:10:25","subject":"Re: [PATCH v1 0/4] Raspberry Pi: Decompanding support","submitter":{"id":130,"url":"https://patchwork.libcamera.org/api/people/130/","name":"Nick Hollinghurst","email":"nick.hollinghurst@raspberrypi.com"},"content":"Hi Naush,\n\nOn Thu, 2 Oct 2025 at 14:35, Naushir Patuck wrote:\n>\n> Hi,\n>\n> This series is a successor to [1] adding support for sensor data decompanding in\n> the frontend.\n>\n> Patch 1 adds support for the algorithm in the IPA, and patches 2-4 update the\n> code to provide initial values to the hardware before the sensor starts\n> streaming. Without these patches, the first 1-2 frames would not have the\n> decompanding enabled.\n>\n> Thanks,\n> Naush\n>\n> [1]: https://patchwork.libcamera.org/patch/24540/\n>\n> Naushir 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>\n> Sena 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\n>\n> --\n> 2.43.0\n>\n\nTested-by: Nick Hollinghurst \n\n Nick","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 20076C324C\n\tfor ;\n\tThu, 2 Oct 2025 14:10:41 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 0BD636B5AA;\n\tThu, 2 Oct 2025 16:10:40 +0200 (CEST)","from mail-ed1-x52d.google.com (mail-ed1-x52d.google.com\n\t[IPv6:2a00:1450:4864:20::52d])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 3DDEC6B5A2\n\tfor ;\n\tThu, 2 Oct 2025 16:10:38 +0200 (CEST)","by mail-ed1-x52d.google.com with SMTP id\n\t4fb4d7f45d1cf-6349e3578adso1804368a12.1\n\tfor ;\n\tThu, 02 Oct 2025 07:10:38 -0700 (PDT)"],"Authentication-Results":"lancelot.ideasonboard.com; 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