{"id":19747,"url":"https://patchwork.libcamera.org/api/1.1/patches/19747/?format=json","web_url":"https://patchwork.libcamera.org/patch/19747/","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":"<20240319120517.362082-8-stefan.klug@ideasonboard.com>","date":"2024-03-19T12:05:08","name":"[v3,07/16] libcamera: delayed_controls: Add controlsAreQueued() helper","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"b264b3de94b82883939bb33d3ce4e946bc257053","submitter":{"id":184,"url":"https://patchwork.libcamera.org/api/1.1/people/184/?format=json","name":"Stefan Klug","email":"stefan.klug@ideasonboard.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/19747/mbox/","series":[{"id":4230,"url":"https://patchwork.libcamera.org/api/1.1/series/4230/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=4230","date":"2024-03-19T12:05:01","name":"Preparation for per-frame-controls and initial tests","version":3,"mbox":"https://patchwork.libcamera.org/series/4230/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/19747/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/19747/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 9BF7DC32C5\n\tfor ;\n\tTue, 19 Mar 2024 12:05:41 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 3C84A62CA7;\n\tTue, 19 Mar 2024 13:05:38 +0100 (CET)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 2D21862973\n\tfor ;\n\tTue, 19 Mar 2024 13:05:29 +0100 (CET)","from jasper.fritz.box (unknown\n\t[IPv6:2a00:6020:448c:6c00:1478:344b:8fcb:baf5])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 7D640480;\n\tTue, 19 Mar 2024 13:05:02 +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=\"TkK93nuG\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1710849902;\n\tbh=CY+7rwNcPmr9tbggrYi5pB0eqv6maFoX762dCfO5dT4=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=TkK93nuG8AJ8wb1Sh3KZ9hoKK2eQJgqRisE+hjt2hRXNB5aoXAF/+pJJu4P2JvA2T\n\tGDbxxQ1twQHLaqQZ86iGjLZB5n0gcaSDm63h/UU9iWFUfSHHIaNjwz/Pt9nRFGqQUw\n\tOCg4DltFH5/1dJnm/wPvzpj0lX9kcKLNw/KiWLLE=","From":"Stefan Klug ","To":"libcamera-devel@lists.libcamera.org","Cc":"Stefan Klug ","Subject":"[PATCH v3 07/16] libcamera: delayed_controls: Add\n\tcontrolsAreQueued() helper","Date":"Tue, 19 Mar 2024 13:05:08 +0100","Message-Id":"<20240319120517.362082-8-stefan.klug@ideasonboard.com>","X-Mailer":"git-send-email 2.40.1","In-Reply-To":"<20240319120517.362082-1-stefan.klug@ideasonboard.com>","References":"<20240319120517.362082-1-stefan.klug@ideasonboard.com>","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":"This gets used in the upcoming patches to decide if controls need to be queued\nfor a later frame, or if the controls can be skipped because they are already\nqueued.\n\nSigned-off-by: Stefan Klug \n---\n include/libcamera/internal/delayed_controls.h | 2 ++\n src/libcamera/delayed_controls.cpp | 34 +++++++++++++++++++\n 2 files changed, 36 insertions(+)","diff":"diff --git a/include/libcamera/internal/delayed_controls.h b/include/libcamera/internal/delayed_controls.h\nindex 0e28106a..ccbe7239 100644\n--- a/include/libcamera/internal/delayed_controls.h\n+++ b/include/libcamera/internal/delayed_controls.h\n@@ -67,6 +67,8 @@ private:\n \t\t}\n \t};\n \n+\tbool controlsAreQueued(unsigned int frame, const ControlList &controls);\n+\n \tV4L2Device *device_;\n \t/* \\todo Evaluate if we should index on ControlId * or unsigned int */\n \tstd::unordered_map controlParams_;\ndiff --git a/src/libcamera/delayed_controls.cpp b/src/libcamera/delayed_controls.cpp\nindex 86571cd4..6c766ede 100644\n--- a/src/libcamera/delayed_controls.cpp\n+++ b/src/libcamera/delayed_controls.cpp\n@@ -137,6 +137,40 @@ void DelayedControls::reset()\n \t}\n }\n \n+/**\n+ * \\brief Helper function to check if controls are already queued\n+ * \\param[in] sequence Sequence number to check\n+ * \\param[in] controls List of controls to compare against\n+ *\n+ * This function checks if the controls queued for frame \\a sequence\n+ * are equal to \\a controls. This is helpful in cases where a control algorithm\n+ * unconditionally queues controls for every frame, but always too late.\n+ * In that case this can be used to check if incoming controls are already\n+ * queued or need to be queued for a later frame.\n+ *\n+ * \\returns true if \\a controls are queued for the given sequence\n+ */\n+bool DelayedControls::controlsAreQueued(unsigned int sequence,\n+\t\t\t\t\tconst ControlList &controls)\n+{\n+\tconst ControlIdMap &idmap = device_->controls().idmap();\n+\tfor (const auto &[id, value] : controls) {\n+\t\tconst auto &it = idmap.find(id);\n+\t\tif (it == idmap.end()) {\n+\t\t\tLOG(DelayedControls, Warning)\n+\t\t\t\t<< \"Unknown control \" << id;\n+\t\t\treturn false;\n+\t\t}\n+\n+\t\tconst ControlId *ctrlId = it->second;\n+\n+\t\tif (values_[ctrlId][sequence] != value)\n+\t\t\treturn false;\n+\t}\n+\n+\treturn true;\n+}\n+\n /**\n * \\brief Push a set of controls on the queue\n * \\param[in] controls List of controls to add to the device queue\n","prefixes":["v3","07/16"]}