{"id":21265,"url":"https://patchwork.libcamera.org/api/1.1/patches/21265/?format=json","web_url":"https://patchwork.libcamera.org/patch/21265/","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":"<01020191ec7e0ad5-37e0d829-4553-4d41-8063-37af6c08c380-000000@eu-west-1.amazonses.com>","date":"2024-09-13T17:46:08","name":"libcamera: pipeline: uvcvideo: Retrieve v4l2 device control information","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"af6f97103a58d13fbb96ac8fc486306a12691c0e","submitter":{"id":207,"url":"https://patchwork.libcamera.org/api/1.1/people/207/?format=json","name":"Cláudio Paulo","email":"claudio.paulo@makewise.pt"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/21265/mbox/","series":[{"id":4592,"url":"https://patchwork.libcamera.org/api/1.1/series/4592/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=4592","date":"2024-09-13T17:46:08","name":"libcamera: pipeline: uvcvideo: Retrieve v4l2 device control information","version":1,"mbox":"https://patchwork.libcamera.org/series/4592/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/21265/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/21265/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 AA7D6C324C\n\tfor ;\n\tFri, 13 Sep 2024 17:46:12 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 6FA6F634F8;\n\tFri, 13 Sep 2024 19:46:11 +0200 (CEST)","from a7-20.smtp-out.eu-west-1.amazonses.com\n\t(a7-20.smtp-out.eu-west-1.amazonses.com [54.240.7.20])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 44114634E3\n\tfor ;\n\tFri, 13 Sep 2024 19:46:10 +0200 (CEST)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (2048-bit key;\n\tunprotected) header.d=makewise.pt header.i=@makewise.pt\n\theader.b=\"ncXZJdp3\"; dkim=pass (1024-bit key;\n\tunprotected) header.d=amazonses.com header.i=@amazonses.com\n\theader.b=\"YAdCBSvB\"; dkim-atps=neutral","DKIM-Signature":["v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple;\n\ts=4ymqmigrodjwq5luewph2eedidgwlpqq; d=makewise.pt; t=1726249569;\n\th=From:To:Cc:Subject:Date:Message-Id:MIME-Version:Content-Type:Content-Transfer-Encoding;\n\tbh=JH5D+nAlVtZPXcWvi8cjEkTpNJjf4VBKppmK/kZY1Dc=;\n\tb=ncXZJdp3qpktb3NJxdkhHhdOdHcsNwnMkk2muhjHoS6zaGlsQ68Q57Y0fTVYdVad\n\tKucA3XVjBNDAQ109uTLOKHYjddvoIKsL/7iDObBAGdabwI2yvjMAFQOHeEr0NkhVMgs\n\tMU02lyC5FTjBMF0cfoWhpxebZwIF8qghNz2/MSzrdW+rUObEUUGgTndW7Y91aEywg2h\n\tE11/33MP0ZewfLQvOiT8fhJPvBF4yYjalUAq2t/ytVaUZOIwxx8ycFkNi9jw+PPBRQq\n\tSxXmvLtSz6WUGO8fQwMfGLzCrqIio7iRlTuDKGwYEq+jWSRaFMsWsEc8PZIjjrZr93H\n\t9F37iGScfQ==","v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple;\n\ts=uku4taia5b5tsbglxyj6zym32efj7xqv; d=amazonses.com; t=1726249569;\n\th=From:To:Cc:Subject:Date:Message-Id:MIME-Version:Content-Type:Content-Transfer-Encoding:Feedback-ID;\n\tbh=JH5D+nAlVtZPXcWvi8cjEkTpNJjf4VBKppmK/kZY1Dc=;\n\tb=YAdCBSvB2Kt8YMnFJH8XyQ1Ztn3kacfDhkUWgLzxQwJGkw2Dhtt8nRuYiF3+T/W+\n\tQxKhihoycCugOyOKJ5pnfX+cst6Q3uLQZX770psJL6bGWbGdlXJQibh04s3TWi10JI1\n\teWtDFDdD7UG+5jvF1B5uQuEKSPtHEjEPCzgxwZfc="],"From":"=?utf-8?q?Cl=C3=A1udio_Paulo?= ","To":"libcamera-devel@lists.libcamera.org","Cc":"=?utf-8?q?Cl=C3=A1udio_Paulo?= ","Subject":"[PATCH] libcamera: pipeline: uvcvideo: Retrieve v4l2 device control\n\tinformation","Date":"Fri, 13 Sep 2024 17:46:08 +0000","Message-ID":"<01020191ec7e0ad5-37e0d829-4553-4d41-8063-37af6c08c380-000000@eu-west-1.amazonses.com>","X-Mailer":"git-send-email 2.34.1","MIME-Version":"1.0","Content-Type":"text/plain; charset=UTF-8","Content-Transfer-Encoding":"8bit","Feedback-ID":"::1.eu-west-1.z8xjvhxVxUk+kM5mx7i/KMS/a2avhcAXFe/noI67NVQ=:AmazonSES","X-SES-Outgoing":"2024.09.13-54.240.7.20","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":"Populate frame metadata by using V4L2Device::getControls() to get\nthe values for all supported controls on each frame.\n\nSigned-off-by: Cláudio Paulo \n---\n src/libcamera/pipeline/uvcvideo/uvcvideo.cpp | 58 ++++++++++++++++++--\n 1 file changed, 54 insertions(+), 4 deletions(-)","diff":"diff --git a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp\nindex 6b32fa18..98a41557 100644\n--- a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp\n+++ b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp\n@@ -333,8 +333,8 @@ int PipelineHandlerUVC::processControl(ControlList *controls, unsigned int id,\n \n \tcase V4L2_CID_EXPOSURE_AUTO: {\n \t\tint32_t ivalue = value.get()\n-\t\t\t ? V4L2_EXPOSURE_APERTURE_PRIORITY\n-\t\t\t : V4L2_EXPOSURE_MANUAL;\n+\t\t\t\t\t ? V4L2_EXPOSURE_APERTURE_PRIORITY\n+\t\t\t\t\t : V4L2_EXPOSURE_MANUAL;\n \t\tcontrols->set(V4L2_CID_EXPOSURE_AUTO, ivalue);\n \t\tbreak;\n \t}\n@@ -750,10 +750,60 @@ void UVCCameraData::addControl(uint32_t cid, const ControlInfo &v4l2Info,\n void UVCCameraData::bufferReady(FrameBuffer *buffer)\n {\n \tRequest *request = buffer->request();\n+\tControlList *metadata = &request->metadata();\n \n \t/* \\todo Use the UVC metadata to calculate a more precise timestamp */\n-\trequest->metadata().set(controls::SensorTimestamp,\n-\t\t\t\tbuffer->metadata().timestamp);\n+\tmetadata->set(controls::SensorTimestamp, buffer->metadata().timestamp);\n+\n+\t/* Retrieve control as reported by the device. */\n+\tstd::vector ids;\n+\tfor (const auto &ctrl : video_->controls()) {\n+\t\tuint32_t cid = ctrl.first->id();\n+\t\tswitch (cid) {\n+\t\tcase V4L2_CID_BRIGHTNESS:\n+\t\tcase V4L2_CID_CONTRAST:\n+\t\tcase V4L2_CID_SATURATION:\n+\t\tcase V4L2_CID_EXPOSURE_AUTO:\n+\t\tcase V4L2_CID_EXPOSURE_ABSOLUTE:\n+\t\tcase V4L2_CID_GAIN:\n+\t\tcase V4L2_CID_FOCUS_ABSOLUTE:\n+\t\tcase V4L2_CID_FOCUS_AUTO:\n+\t\t\tids.push_back(cid);\n+\t\t\tbreak;\n+\t\tdefault:\n+\t\t\tcontinue;\n+\t\t}\n+\t}\n+\n+\tControlList deviceControls = video_->getControls(ids);\n+\tfor (const auto &item : deviceControls) {\n+\t\tswitch (item.first) {\n+\t\tcase V4L2_CID_BRIGHTNESS:\n+\t\t\tmetadata->set(controls::Brightness, item.second.get());\n+\t\t\tbreak;\n+\t\tcase V4L2_CID_CONTRAST:\n+\t\t\tmetadata->set(controls::Contrast, item.second.get());\n+\t\t\tbreak;\n+\t\tcase V4L2_CID_SATURATION:\n+\t\t\tmetadata->set(controls::Saturation, item.second.get());\n+\t\t\tbreak;\n+\t\tcase V4L2_CID_EXPOSURE_AUTO:\n+\t\t\tmetadata->set(controls::AeEnable, item.second.get());\n+\t\t\tbreak;\n+\t\tcase V4L2_CID_EXPOSURE_ABSOLUTE:\n+\t\t\tmetadata->set(controls::ExposureTime, item.second.get());\n+\t\t\tbreak;\n+\t\tcase V4L2_CID_GAIN:\n+\t\t\tmetadata->set(controls::AnalogueGain, item.second.get());\n+\t\t\tbreak;\n+\t\tcase V4L2_CID_FOCUS_ABSOLUTE:\n+\t\t\tmetadata->set(controls::LensPosition, item.second.get());\n+\t\t\tbreak;\n+\t\tcase V4L2_CID_FOCUS_AUTO:\n+\t\t\tmetadata->set(controls::AfMode, item.second.get());\n+\t\t\tbreak;\n+\t\t}\n+\t}\n \n \tpipe()->completeBuffer(request, buffer);\n \tpipe()->completeRequest(request);\n","prefixes":[]}