{"id":25640,"url":"https://patchwork.libcamera.org/api/patches/25640/?format=json","web_url":"https://patchwork.libcamera.org/patch/25640/","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":"<20260106165754.1759831-11-barnabas.pocze@ideasonboard.com>","date":"2026-01-06T16:57:42","name":"[v4,10/22] libcamera: camera: Store `MetadataListPlan` in `Camera::Private`","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"8b55b45b2e47dc7cb003e18bb2bfe325e46d4e32","submitter":{"id":216,"url":"https://patchwork.libcamera.org/api/people/216/?format=json","name":"Barnabás Pőcze","email":"barnabas.pocze@ideasonboard.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/25640/mbox/","series":[{"id":5688,"url":"https://patchwork.libcamera.org/api/series/5688/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=5688","date":"2026-01-06T16:57:32","name":"libcamera: Add `MetadataList`","version":4,"mbox":"https://patchwork.libcamera.org/series/5688/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/25640/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/25640/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 10F67C323E\n\tfor ;\n\tTue, 6 Jan 2026 16:58:17 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id A2F7661FF6;\n\tTue, 6 Jan 2026 17:58:09 +0100 (CET)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 9DA8D61FCE\n\tfor ;\n\tTue, 6 Jan 2026 17:58:00 +0100 (CET)","from pb-laptop.local (185.221.143.114.nat.pool.zt.hu\n\t[185.221.143.114])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 8DDD01784;\n\tTue, 6 Jan 2026 17:57:39 +0100 (CET)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"rI6cbcMx\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1767718659;\n\tbh=RhWs6D7ApT7n2cQkxiWg81Uqr385M4ceeJuLW2TNMSs=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=rI6cbcMxqkPjWdMQhGbbt7Kj/4huVVIdjNYRvT4T6RVevWwE5c1tl/Zs8sPMeWEOV\n\tAzQBiPLDU/7yuIq7QsHWM3xHq2MaZG5wagYsYnpYc5CRK4tMuiA9V4NkEP2F4cVhtF\n\tPoLUwmDnUO0UCjmJNp1ZJcRycDbjGTjzRRVzFSLo=","From":"=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= ","To":"libcamera-devel@lists.libcamera.org","Cc":"Jacopo Mondi ,\n\tPaul Elder ,\n\tKieran Bingham ","Subject":"[PATCH v4 10/22] libcamera: camera: Store `MetadataListPlan` in\n\t`Camera::Private`","Date":"Tue, 6 Jan 2026 17:57:42 +0100","Message-ID":"<20260106165754.1759831-11-barnabas.pocze@ideasonboard.com>","X-Mailer":"git-send-email 2.52.0","In-Reply-To":"<20260106165754.1759831-1-barnabas.pocze@ideasonboard.com>","References":"<20260106165754.1759831-1-barnabas.pocze@ideasonboard.com>","MIME-Version":"1.0","Content-Type":"text/plain; charset=UTF-8","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":"Just like `ControlInfoMap controlInfo_` is a public member of the private\ncamera data for pipeline handlers to populate, add a `MetadataListPlan` as\nwell for the pipeline handlers to fill. This will be used to initialize\nthe `MetadataList` of each request created by the camera.\n\nAlso add `Camera::metadata()`, which makes it accessible for applications.\n\nSigned-off-by: Barnabás Pőcze \nReviewed-by: Jacopo Mondi \nReviewed-by: Paul Elder \nReviewed-by: Kieran Bingham \n---\nchanges in v2:\n * make it available in `Camera::metadata()`\n---\n include/libcamera/camera.h | 2 ++\n include/libcamera/internal/camera.h | 2 ++\n src/libcamera/camera.cpp | 21 +++++++++++++++++++++\n 3 files changed, 25 insertions(+)","diff":"diff --git a/include/libcamera/camera.h b/include/libcamera/camera.h\nindex b24a29740..53089282a 100644\n--- a/include/libcamera/camera.h\n+++ b/include/libcamera/camera.h\n@@ -31,6 +31,7 @@ class FrameBuffer;\n class FrameBufferAllocator;\n class PipelineHandler;\n class Request;\n+class MetadataListPlan;\n \n class SensorConfiguration\n {\n@@ -131,6 +132,7 @@ public:\n \n \tconst ControlInfoMap &controls() const;\n \tconst ControlList &properties() const;\n+\tconst MetadataListPlan &metadata() const;\n \n \tconst std::set &streams() const;\n \ndiff --git a/include/libcamera/internal/camera.h b/include/libcamera/internal/camera.h\nindex 8a2e9ed58..016c1ae51 100644\n--- a/include/libcamera/internal/camera.h\n+++ b/include/libcamera/internal/camera.h\n@@ -18,6 +18,7 @@\n #include \n \n #include \n+#include \n \n namespace libcamera {\n \n@@ -40,6 +41,7 @@ public:\n \tstd::queue waitingRequests_;\n \tControlInfoMap controlInfo_;\n \tControlList properties_;\n+\tMetadataListPlan metadataPlan_;\n \n \tuint32_t requestSequence_;\n \ndiff --git a/src/libcamera/camera.cpp b/src/libcamera/camera.cpp\nindex 7c0e93ff4..88990c3c0 100644\n--- a/src/libcamera/camera.cpp\n+++ b/src/libcamera/camera.cpp\n@@ -658,6 +658,14 @@ Camera::Private::~Private()\n * when creating the camera, and shall not be modified afterwards.\n */\n \n+/**\n+ * \\var Camera::Private::metadataPlan_\n+ * \\brief The set of metadata supported by the camera\n+ *\n+ * The metadata information shall be initialised by the pipeline handler when\n+ * creating the camera.\n+ */\n+\n /**\n * \\var Camera::Private::requestSequence_\n * \\brief The queuing sequence number of the request\n@@ -1074,6 +1082,19 @@ const ControlInfoMap &Camera::controls() const\n \treturn _d()->controlInfo_;\n }\n \n+/**\n+ * \\brief Retrieve the set of metadata supported by the camera\n+ *\n+ * The list of metadata controls that may be reported by the camera\n+ * for a \\ref Request::metadata() \"request\".\n+ *\n+ * \\return A MetadataListPlan listing the metadata controls supported by the camera\n+ */\n+const MetadataListPlan &Camera::metadata() const\n+{\n+\treturn _d()->metadataPlan_;\n+}\n+\n /**\n * \\brief Retrieve the list of properties of the camera\n *\n","prefixes":["v4","10/22"]}