{"id":8439,"url":"https://patchwork.libcamera.org/api/1.1/patches/8439/?format=json","web_url":"https://patchwork.libcamera.org/patch/8439/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/1.1/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":"<20200626102531.1187650-2-naush@raspberrypi.com>","date":"2020-06-26T10:25:28","name":"[libcamera-devel,1/4] libcamera: controls: Add focus Figure of Merit (FoM) control","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"823eb2ccd1b67a58d9531bd51750b2c0041422e5","submitter":{"id":34,"url":"https://patchwork.libcamera.org/api/1.1/people/34/?format=json","name":"Naushir Patuck","email":"naush@raspberrypi.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/8439/mbox/","series":[{"id":1044,"url":"https://patchwork.libcamera.org/api/1.1/series/1044/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=1044","date":"2020-06-26T10:25:27","name":"Focus feedback control","version":1,"mbox":"https://patchwork.libcamera.org/series/1044/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/8439/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/8439/checks/","tags":{},"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 604C2C0109\n\tfor ;\n\tFri, 26 Jun 2020 10:25:55 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 1A863609DF;\n\tFri, 26 Jun 2020 12:25:55 +0200 (CEST)","from mail-wm1-x341.google.com (mail-wm1-x341.google.com\n\t[IPv6:2a00:1450:4864:20::341])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id B9F9F609C9\n\tfor ;\n\tFri, 26 Jun 2020 12:25:51 +0200 (CEST)","by mail-wm1-x341.google.com with SMTP id t194so8866375wmt.4\n\tfor ;\n\tFri, 26 Jun 2020 03:25:51 -0700 (PDT)","from naushir-VirtualBox.patuck.local ([88.97.76.4])\n\tby smtp.gmail.com with ESMTPSA id\n\tr8sm21959679wrp.40.2020.06.26.03.25.47\n\t(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n\tFri, 26 Jun 2020 03:25:48 -0700 (PDT)"],"Authentication-Results":"lancelot.ideasonboard.com;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n\tunprotected) header.d=raspberrypi.com header.i=@raspberrypi.com\n\theader.b=\"McLarQn+\"; 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charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"Provide a control to allow the IPA to return a FoM to indicate how\nin-focus a scene is. Note, this is not to be used as a means to\nimplement a focus algorithm by the application, rather an indication of\nhow in-focus a scene is.\n\nSigned-off-by: Naushir Patuck \n---\n src/libcamera/control_ids.yaml | 11 +++++++++++\n 1 file changed, 11 insertions(+)","diff":"diff --git a/src/libcamera/control_ids.yaml b/src/libcamera/control_ids.yaml\nindex 8c3e4c72..b46693ec 100644\n--- a/src/libcamera/control_ids.yaml\n+++ b/src/libcamera/control_ids.yaml\n@@ -251,4 +251,15 @@ controls:\n higher than anyone could reasonably want. Negative values are\n not allowed. Note also that sharpening is not applied to raw\n streams.\n+\n+ - FocusFoM:\n+ type: int32_t\n+ description: |\n+ Reports a Figure of Merit (FoM) to indicate how in-focus the frame is.\n+ A larger FocusFoM value indicates a more in-focus frame. This control\n+ depends on the IPA to gather ISP statistics from the defined focus\n+ region, and combine them in a suitable way to generate a FocusFoM value.\n+ In this respect, it is not necessarily aimed a providing a way to\n+ implement a focus algorithm by the application, rather an indication of\n+ how in-focus a frame is.\n ...\n","prefixes":["libcamera-devel","1/4"]}