{"id":20431,"url":"https://patchwork.libcamera.org/api/patches/20431/?format=json","web_url":"https://patchwork.libcamera.org/patch/20431/","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":"<20240627134656.582462-2-umang.jain@ideasonboard.com>","date":"2024-06-27T13:46:52","name":"[v4,1/5] libcamera: converter: Add interface for feature flags","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"96f53fbf428d75197d3f327364bac091af89b26d","submitter":{"id":86,"url":"https://patchwork.libcamera.org/api/people/86/?format=json","name":"Umang Jain","email":"umang.jain@ideasonboard.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/20431/mbox/","series":[{"id":4425,"url":"https://patchwork.libcamera.org/api/series/4425/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=4425","date":"2024-06-27T13:46:51","name":"libcamera: rkisp1: Plumb the ConverterDW100 converter","version":4,"mbox":"https://patchwork.libcamera.org/series/4425/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/20431/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/20431/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 36CA8BDB1D\n\tfor ;\n\tThu, 27 Jun 2024 13:47:08 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id CC27362E20;\n\tThu, 27 Jun 2024 15:47:07 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 236A862C95\n\tfor ;\n\tThu, 27 Jun 2024 15:47:04 +0200 (CEST)","from fedora.local (unknown\n\t[IPv6:2405:201:2015:f873:c173:4b:4a04:3a21])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 8C46C7E0;\n\tThu, 27 Jun 2024 15:46:39 +0200 (CEST)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"r8e1ZNJt\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1719496000;\n\tbh=kiCxZt+YqR+hG9uR+z4YXAuDO2nPQ/QHvxVq3kaAD2Q=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=r8e1ZNJtVaeoJxg/hCRcSoh5YB94j/faliQsjnxBFPSHDxrQQA9ZjW7gXgP4eAF2o\n\t26+1OcczuA7lEg6MMC1cYRqdsvS2ujjDTVqzrSkw17evwWYcUSsp99aMc8rkEbOn+B\n\tWBrB/HrRkxoBVn2biUACJ6m29UTIackmR5ATs1zs=","From":"Umang Jain ","To":"libcamera-devel@lists.libcamera.org","Cc":"Umang Jain ","Subject":"[PATCH v4 1/5] libcamera: converter: Add interface for feature flags","Date":"Thu, 27 Jun 2024 19:16:52 +0530","Message-ID":"<20240627134656.582462-2-umang.jain@ideasonboard.com>","X-Mailer":"git-send-email 2.44.0","In-Reply-To":"<20240627134656.582462-1-umang.jain@ideasonboard.com>","References":"<20240627134656.582462-1-umang.jain@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 patch intends to extend the converter interface to have feature\nflags, which enables each converter to expose the set of features\nit supports.\n\nSigned-off-by: Umang Jain \n---\n include/libcamera/internal/converter.h | 13 ++++++++++-\n .../internal/converter/converter_v4l2_m2m.h | 2 +-\n src/libcamera/converter.cpp | 22 ++++++++++++++++++-\n .../converter/converter_v4l2_m2m.cpp | 5 +++--\n 4 files changed, 37 insertions(+), 5 deletions(-)","diff":"diff --git a/include/libcamera/internal/converter.h b/include/libcamera/internal/converter.h\nindex b51563d7..15bc7dca 100644\n--- a/include/libcamera/internal/converter.h\n+++ b/include/libcamera/internal/converter.h\n@@ -17,6 +17,7 @@\n #include \n \n #include \n+#include \n #include \n \n #include \n@@ -32,7 +33,13 @@ struct StreamConfiguration;\n class Converter\n {\n public:\n-\tConverter(MediaDevice *media);\n+\tenum class Feature {\n+\t\tNone = (1 << 0),\n+\t};\n+\n+\tusing Features = Flags;\n+\n+\tConverter(MediaDevice *media, Features features = Feature::None);\n \tvirtual ~Converter();\n \n \tvirtual int loadConfiguration(const std::string &filename) = 0;\n@@ -61,8 +68,12 @@ public:\n \n \tconst std::string &deviceNode() const { return deviceNode_; }\n \n+\tFeatures getFeatures() const { return features_; }\n+\n private:\n \tstd::string deviceNode_;\n+\n+\tFeatures features_;\n };\n \n class ConverterFactoryBase\ndiff --git a/include/libcamera/internal/converter/converter_v4l2_m2m.h b/include/libcamera/internal/converter/converter_v4l2_m2m.h\nindex b9e59899..91701dbe 100644\n--- a/include/libcamera/internal/converter/converter_v4l2_m2m.h\n+++ b/include/libcamera/internal/converter/converter_v4l2_m2m.h\n@@ -35,7 +35,7 @@ class V4L2M2MDevice;\n class V4L2M2MConverter : public Converter\n {\n public:\n-\tV4L2M2MConverter(MediaDevice *media);\n+\tV4L2M2MConverter(MediaDevice *media, Features features = Feature::None);\n \n \tint loadConfiguration([[maybe_unused]] const std::string &filename) { return 0; }\n \tbool isValid() const { return m2m_ != nullptr; }\ndiff --git a/src/libcamera/converter.cpp b/src/libcamera/converter.cpp\nindex c5e38937..2dc7d984 100644\n--- a/src/libcamera/converter.cpp\n+++ b/src/libcamera/converter.cpp\n@@ -34,14 +34,27 @@ LOG_DEFINE_CATEGORY(Converter)\n * parameters from the same input stream.\n */\n \n+/**\n+ * \\enum Converter::Feature\n+ * \\brief Specify the features supported by the converter\n+ * \\var Converter::Feature::None\n+ * \\brief No extra features supported by the converter\n+ */\n+\n+/**\n+ * \\typedef Converter::Features\n+ * \\brief A bitwise combination of features supported by the converter\n+ */\n+\n /**\n * \\brief Construct a Converter instance\n * \\param[in] media The media device implementing the converter\n+ * \\param[in] features Features flags representing supported features\n *\n * This searches for the entity implementing the data streaming function in the\n * media graph entities and use its device node as the converter device node.\n */\n-Converter::Converter(MediaDevice *media)\n+Converter::Converter(MediaDevice *media, Features features)\n {\n \tconst std::vector &entities = media->entities();\n \tauto it = std::find_if(entities.begin(), entities.end(),\n@@ -56,6 +69,7 @@ Converter::Converter(MediaDevice *media)\n \t}\n \n \tdeviceNode_ = (*it)->deviceNode();\n+\tfeatures_ = features;\n }\n \n Converter::~Converter()\n@@ -163,6 +177,12 @@ Converter::~Converter()\n * \\return The converter device node string\n */\n \n+/**\n+ * \\fn Converter::getFeatures()\n+ * \\brief Gets the supported features by the converter\n+ * \\return The converter Features flag\n+ */\n+\n /**\n * \\class ConverterFactoryBase\n * \\brief Base class for converter factories\ndiff --git a/src/libcamera/converter/converter_v4l2_m2m.cpp b/src/libcamera/converter/converter_v4l2_m2m.cpp\nindex 2e77872e..4aeb7dd9 100644\n--- a/src/libcamera/converter/converter_v4l2_m2m.cpp\n+++ b/src/libcamera/converter/converter_v4l2_m2m.cpp\n@@ -191,10 +191,11 @@ void V4L2M2MConverter::V4L2M2MStream::captureBufferReady(FrameBuffer *buffer)\n * \\fn V4L2M2MConverter::V4L2M2MConverter\n * \\brief Construct a V4L2M2MConverter instance\n * \\param[in] media The media device implementing the converter\n+ * \\param[in] features Features flags representing supported features\n */\n \n-V4L2M2MConverter::V4L2M2MConverter(MediaDevice *media)\n-\t: Converter(media)\n+V4L2M2MConverter::V4L2M2MConverter(MediaDevice *media, Features features)\n+\t: Converter(media, features)\n {\n \tif (deviceNode().empty())\n \t\treturn;\n","prefixes":["v4","1/5"]}