From patchwork Wed Jan 29 03:31:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Dufresne X-Patchwork-Id: 2734 Return-Path: Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 9F5EE60447 for ; Wed, 29 Jan 2020 04:35:11 +0100 (CET) Received: from nicolas-tpx395.localdomain (unknown [IPv6:2002:c0de:c115:0:66fc:8b:2a38:8313]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: nicolas) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 5E0BA28EA9F; Wed, 29 Jan 2020 03:35:10 +0000 (GMT) From: Nicolas Dufresne To: libcamera-devel@lists.libcamera.org Cc: Nicolas Dufresne Date: Tue, 28 Jan 2020 22:31:47 -0500 Message-Id: <20200129033210.278800-1-nicolas@ndufresne.ca> X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH v1 00/23] GStreamer Element for libcamera X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Jan 2020 03:35:11 -0000 From: Nicolas Dufresne This patchset introduces two GStreamer features for libcamera. A GstDeviceProvider that allow enumerating the cameras and a libcamerasrc element the allow streaming from a selected camera. This is an early implementation that is not feature complete. It is designed to support multiple streams even though it currently only allow one srcpad. The goal of this submission is to get an inital element merged so that further improvement can happen incrementally. To test these features, you'll need GStreamer 1.16 (downgrade might be possible). To get the list of cameras you can run the following. Regression exist in the monitor of GStreamer 1.16.2 that may cause a crash, and also in master that may show nothing. This will be addressed in later release of GStreamer. gst-device-monitor-1.0 Video/Source To stream from a cameram, you can use the following pipeline: gst-launch-1.0 libcamerasrc ! videoconvert ! autovideosink Nicolas Dufresne (23): Add GStreamer plugin and element skeleton gst: Add utility to convert StreamFormats to GstCaps gst: Add initial device provider gst: utils: Add a macro to use a GMutexLocker gst: Add pads to the source gst: libcamerasrc: Allocate and add static pad gst: libcamerasrc: Add camera-name property gst: libcamerasrc: Add a debug category gst: libcamerasrc: Implement selection and acquisition gst: libcamerasrc: Start/Stop the streaming thread gst: libcamerapad: Add a method to access the role gst: libcamerasrc: Store the srcpad in a vector gst: libcamerasrc: Send stream start event gst: utils: Add StreamConfiguration helpers gst: libcamerasrc: Implement minimal caps negotiation gst: libcamerasrc: Push segment event gst: Add a pool and an allocator implementation gst: libcamerapad: Allow storing a pool gst: libcamerasrc: Allocate and release buffers gst: Add getters for Stream and FrameBuffer gst: pad: Add method to store retrieve pending buffers gst: libcamerasrc: Implement initial streaming gst: libcamerasrc: Add a TODO comment meson_options.txt | 5 + src/gstreamer/gstlibcamera-utils.cpp | 163 +++++++ src/gstreamer/gstlibcamera-utils.h | 23 + src/gstreamer/gstlibcamera.c | 27 + src/gstreamer/gstlibcameraallocator.cpp | 249 ++++++++++ src/gstreamer/gstlibcameraallocator.h | 31 ++ src/gstreamer/gstlibcamerapad.cpp | 182 +++++++ src/gstreamer/gstlibcamerapad.h | 35 ++ src/gstreamer/gstlibcamerapool.cpp | 129 +++++ src/gstreamer/gstlibcamerapool.h | 34 ++ src/gstreamer/gstlibcameraprovider.cpp | 227 +++++++++ src/gstreamer/gstlibcameraprovider.h | 23 + src/gstreamer/gstlibcamerasrc.cpp | 622 ++++++++++++++++++++++++ src/gstreamer/gstlibcamerasrc.h | 22 + src/gstreamer/meson.build | 31 ++ src/meson.build | 2 + 16 files changed, 1805 insertions(+) create mode 100644 src/gstreamer/gstlibcamera-utils.cpp create mode 100644 src/gstreamer/gstlibcamera-utils.h create mode 100644 src/gstreamer/gstlibcamera.c create mode 100644 src/gstreamer/gstlibcameraallocator.cpp create mode 100644 src/gstreamer/gstlibcameraallocator.h create mode 100644 src/gstreamer/gstlibcamerapad.cpp create mode 100644 src/gstreamer/gstlibcamerapad.h create mode 100644 src/gstreamer/gstlibcamerapool.cpp create mode 100644 src/gstreamer/gstlibcamerapool.h create mode 100644 src/gstreamer/gstlibcameraprovider.cpp create mode 100644 src/gstreamer/gstlibcameraprovider.h create mode 100644 src/gstreamer/gstlibcamerasrc.cpp create mode 100644 src/gstreamer/gstlibcamerasrc.h create mode 100644 src/gstreamer/meson.build