Cover Letter Detail
Show a cover letter.
GET /api/covers/62/?format=api
{ "id": 62, "url": "https://patchwork.libcamera.org/api/covers/62/?format=api", "web_url": "https://patchwork.libcamera.org/cover/62/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<1545324285-16730-1-git-send-email-jacopo@jmondi.org>", "date": "2018-12-20T16:44:43", "name": "[libcamera-devel,0/2] Add MediaDevice and associated MediaObjects", "submitter": { "id": 3, "url": "https://patchwork.libcamera.org/api/people/3/?format=api", "name": "Jacopo Mondi", "email": "jacopo@jmondi.org" }, "mbox": "https://patchwork.libcamera.org/cover/62/mbox/", "series": [ { "id": 33, "url": "https://patchwork.libcamera.org/api/series/33/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=33", "date": "2018-12-20T16:44:43", "name": "Add MediaDevice and associated MediaObjects", "version": 1, "mbox": "https://patchwork.libcamera.org/series/33/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/covers/62/comments/", "headers": { "Return-Path": "<jacopo@jmondi.org>", "Received": [ "from relay10.mail.gandi.net (relay10.mail.gandi.net\n\t[217.70.178.230])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 1873160B1F\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 20 Dec 2018 17:45:01 +0100 (CET)", "from w540.lan (2-224-242-101.ip172.fastwebnet.it [2.224.242.101])\n\t(Authenticated sender: jacopo@jmondi.org)\n\tby relay10.mail.gandi.net (Postfix) with ESMTPSA id 9BE8C240011;\n\tThu, 20 Dec 2018 16:45:00 +0000 (UTC)" ], "From": "Jacopo Mondi <jacopo@jmondi.org>", "To": "libcamera-devel@lists.libcamera.org", "Date": "Thu, 20 Dec 2018 17:44:43 +0100", "Message-Id": "<1545324285-16730-1-git-send-email-jacopo@jmondi.org>", "X-Mailer": "git-send-email 2.7.4", "Subject": "[libcamera-devel] [PATCH 0/2] Add MediaDevice and associated\n\tMediaObjects", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.23", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "X-List-Received-Date": "Thu, 20 Dec 2018 16:45:01 -0000" }, "content": "Hello,\n this two patches add a class hierarcy to represent the media device objects\nregistered in a media graph.\n\nThe first patch adds the hierarcy used to represent media entities, pads and\nlinks, while the second one adds a class that handles the media graph making\nuse of the here introduced MediaObjects.\n\nThe MediaDevice class allows enumerations of all media objects in the media\ngraph and supports handling of pad-2-pad links.\n\nThis classes will be used by pipeline managers to setup the media graph\nfor the selected use case, and they've been tested with a sketched pipeline\nmanager targetting Intel's IPU3 platforms.\n\nAs of now, the media device depends on receiving a static map that associates\neach entity with its video subdevice path. This might be modified once a media\nenumerator is available, and will provide said map by inspecting what's\navailable in the system.\n\nFor this reason, I have a unit test I'm not sharing yet as it needs to\nhardcode the entity-path map for the platform I'm currently developing for.\n\nAs a minor side note: comments. This code is over-commented, I know. I don't\nthink that's a bad thing in general, but as this aims to be the reference\nimplementation, I felt like it was worth commenting everything I could.\nWe decided to comment as much as we can in the .cpp file, to keep headers\nsimple and clean. I still tend to agree with this, but I'm open to discuss it\nif necessary.\n\nThanks\n j\n\nJacopo Mondi (2):\n libcamera: Add MediaObject class hierarchy\n libcamera: Add MediaDevice class\n\n src/libcamera/include/media_device.h | 72 +++++\n src/libcamera/include/media_object.h | 119 +++++++\n src/libcamera/media_device.cpp | 603 +++++++++++++++++++++++++++++++++++\n src/libcamera/media_object.cpp | 302 ++++++++++++++++++\n src/libcamera/meson.build | 2 +\n 5 files changed, 1098 insertions(+)\n create mode 100644 src/libcamera/include/media_device.h\n create mode 100644 src/libcamera/include/media_object.h\n create mode 100644 src/libcamera/media_device.cpp\n create mode 100644 src/libcamera/media_object.cpp\n\n--\n2.7.4" }