From patchwork Sun Jan 27 00:22:04 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Niklas_S=C3=B6derlund?= X-Patchwork-Id: 410 Return-Path: Received: from vsp-unauthed02.binero.net (vsp-unauthed02.binero.net [195.74.38.227]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 77C4260C7D for ; Sun, 27 Jan 2019 01:22:51 +0100 (CET) X-Halon-ID: ae178ff2-21c9-11e9-874f-005056917f90 Authorized-sender: niklas@soderlund.pp.se Received: from bismarck.berto.se (unknown [89.233.230.99]) by bin-vsp-out-02.atm.binero.net (Halon) with ESMTPA id ae178ff2-21c9-11e9-874f-005056917f90; Sun, 27 Jan 2019 01:22:50 +0100 (CET) From: =?utf-8?q?Niklas_S=C3=B6derlund?= To: libcamera-devel@lists.libcamera.org Date: Sun, 27 Jan 2019 01:22:04 +0100 Message-Id: <20190127002208.18913-3-niklas.soderlund@ragnatech.se> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190127002208.18913-1-niklas.soderlund@ragnatech.se> References: <20190127002208.18913-1-niklas.soderlund@ragnatech.se> MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH v3 2/6] libcamera: stream: add initial StreamConfiguration class X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 27 Jan 2019 00:22:52 -0000 Add an initial StreamConfiguration implementation to hold configuration data for a single stream of a Camera. In its current form not many configuration parameters are supported but it's expected the number of options will grow over time. At this stage the pixel format is represented as an unsigned int to allow for easy mapping to the V4L2 API. This might be subject to change in the future as we finalize how libcamera shall represent pixel formats. Signed-off-by: Niklas Söderlund Reviewed-by: Laurent Pinchart --- include/libcamera/stream.h | 10 ++++++++++ src/libcamera/stream.cpp | 31 +++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+) diff --git a/include/libcamera/stream.h b/include/libcamera/stream.h index 580f2cc8d3a3ad59..e7597dd5a9492c2a 100644 --- a/include/libcamera/stream.h +++ b/include/libcamera/stream.h @@ -20,6 +20,16 @@ private: unsigned int id_; }; +class StreamConfiguration final +{ +public: + StreamConfiguration(); + + unsigned int width; + unsigned int height; + unsigned int pixelFormat; +}; + } /* namespace libcamera */ #endif /* __LIBCAMERA_STREAM_H__ */ diff --git a/src/libcamera/stream.cpp b/src/libcamera/stream.cpp index 307de3710d0ac6b1..530668a478a79c94 100644 --- a/src/libcamera/stream.cpp +++ b/src/libcamera/stream.cpp @@ -64,4 +64,35 @@ Stream::Stream(unsigned int id) * \return The stream ID */ +/** + * \class StreamConfiguration + * \brief Configuration parameters for a stream + * + * The StreamConfiguration class is a model of all information which can be + * configured for a single video stream. + */ + +StreamConfiguration::StreamConfiguration() + : width(0), height(0), pixelFormat(0) +{ +} + +/** + * \var StreamConfiguration::width + * \brief Stream width in pixels + */ + +/** + * \var StreamConfiguration::height + * \brief Stream height in pixels + */ + +/** + * \var StreamConfiguration::pixelFormat + * \brief Stream pixel format or type of compression + * + * This is a little endian four character code representation of the pixel + * format described in V4L2 using the V4L2_PIX_FMT_* definitions. + */ + } /* namespace libcamera */