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{ "id": 20089, "url": "https://patchwork.libcamera.org/api/patches/20089/?format=api", "web_url": "https://patchwork.libcamera.org/patch/20089/", "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": "<20240522203924.1111388-3-nicolas@ndufresne.ca>", "date": "2024-05-22T20:39:24", "name": "[v1,2/2] gst: Document libcamerasrc multi stream usage", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "7e242f9bb2a9f9938a03b89482dc2d6c3e93198a", "submitter": { "id": 30, "url": "https://patchwork.libcamera.org/api/people/30/?format=api", "name": "Nicolas Dufresne", "email": "nicolas@ndufresne.ca" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/20089/mbox/", "series": [ { "id": 4322, "url": "https://patchwork.libcamera.org/api/series/4322/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=4322", "date": "2024-05-22T20:39:22", "name": "Document libcamerasrc multi stream usage", "version": 1, "mbox": "https://patchwork.libcamera.org/series/4322/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/20089/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/20089/checks/", "tags": {}, "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "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 8B68EBDE6B\n\tfor <parsemail@patchwork.libcamera.org>;\n\tWed, 22 May 2024 20:40:07 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 2E9D06349C;\n\tWed, 22 May 2024 22:40:07 +0200 (CEST)", "from madrid.collaboradmins.com (madrid.collaboradmins.com\n\t[IPv6:2a00:1098:ed:100::25])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 088E66349C\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 22 May 2024 22:39:58 +0200 (CEST)", "from nicolas-tpx395.lan (cola.collaboradmins.com [195.201.22.229])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\tkey-exchange X25519 server-signature RSA-PSS (4096 bits)\n\tserver-digest SHA256)\n\t(No client certificate requested) (Authenticated sender: nicolas)\n\tby madrid.collaboradmins.com (Postfix) with ESMTPSA id EF81F3781480; \n\tWed, 22 May 2024 20:39:57 +0000 (UTC)" ], "From": "Nicolas Dufresne <nicolas@ndufresne.ca>", "To": "libcamera-devel@lists.libcamera.org", "Cc": "Nicolas Dufresne <nicolas.dufresne@collabora.com>", "Subject": "[PATCH v1 2/2] gst: Document libcamerasrc multi stream usage", "Date": "Wed, 22 May 2024 16:39:24 -0400", "Message-ID": "<20240522203924.1111388-3-nicolas@ndufresne.ca>", "X-Mailer": "git-send-email 2.45.0", "In-Reply-To": "<20240522203924.1111388-1-nicolas@ndufresne.ca>", "References": "<20240522203924.1111388-1-nicolas@ndufresne.ca>", "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": "<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>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "From: Nicolas Dufresne <nicolas.dufresne@collabora.com>\n\nThis adds documentation and an example using gst-launch-1.0.\n\nSigned-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>\n---\n README.rst | 16 ++++++++++++++++\n 1 file changed, 16 insertions(+)", "diff": "diff --git a/README.rst b/README.rst\nindex 1da7a3d6..d605182b 100644\n--- a/README.rst\n+++ b/README.rst\n@@ -178,6 +178,22 @@ Which can be received on another device over the network with:\n gst-launch-1.0 tcpclientsrc host=$DEVICE_IP port=5000 ! \\\n multipartdemux ! jpegdec ! autovideosink\n \n+The GStreamer element also supports multiple streams. This is achieved by\n+requesting additionnal source pads. Downstream caps filteris can be used\n+to choose specific parameters like resolution and pixel format. The pad\n+property ``stream-role`` can be used to select a role.\n+\n+The following example displayis a 640x480 view finder while streamiing JPEG\n+encoded 800x600 video. You can use the receiver pipleine above to view the\n+remote stream from another device.\n+\n+.. code::\n+\n+ gst-launch-1.0 libcamerasrc name=cs src::stream-role=view-finder src_0::stream-role=video-recording \\\n+ cs.src ! queue ! video/x-raw,width=640,height=480 ! videoconvert ! autovideosink \\\n+ cs.src_0 ! queue ! video/x-raw,width=800,height=600 ! videoconvert ! \\\n+ jpegenc ! multipartmux ! tcpserversink host=0.0.0.0 port=5000\n+\n .. section-end-getting-started\n \n Troubleshooting\n", "prefixes": [ "v1", "2/2" ] }