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{ "id": 4090, "url": "https://patchwork.libcamera.org/api/patches/4090/?format=api", "web_url": "https://patchwork.libcamera.org/patch/4090/", "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": "<20200619054123.19052-11-paul.elder@ideasonboard.com>", "date": "2020-06-19T05:41:16", "name": "[libcamera-devel,v2,10/17] v4l2: v4l2_camera_proxy: noop if streamon when stream is already on", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "37f00d9ed0f82602dc2d26464ab932d20fabfa2e", "submitter": { "id": 17, "url": "https://patchwork.libcamera.org/api/people/17/?format=api", "name": "Paul Elder", "email": "paul.elder@ideasonboard.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/4090/mbox/", "series": [ { "id": 1017, "url": "https://patchwork.libcamera.org/api/series/1017/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=1017", "date": "2020-06-19T05:41:06", "name": "Support v4l2-compliance", "version": 2, "mbox": "https://patchwork.libcamera.org/series/1017/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/4090/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/4090/checks/", "tags": {}, "headers": { "Return-Path": "<paul.elder@ideasonboard.com>", "Received": [ "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 5A0E060AF2\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tFri, 19 Jun 2020 07:41:57 +0200 (CEST)", "from jade.flets-east.jp (unknown\n\t[IPv6:2400:4051:61:600:e972:d773:e99a:4f79])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id B3000556;\n\tFri, 19 Jun 2020 07:41:55 +0200 (CEST)" ], "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key; \n\tunprotected) header.d=ideasonboard.com\n\theader.i=@ideasonboard.com\n\theader.b=\"uW6h0MdB\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1592545316;\n\tbh=H/ZXtk9Q6IOQXuUmU2vYulaC9dDGP7RKuMI30+7YygM=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=uW6h0MdB0/JDzMk6pbnVJQ1fHtubi1siilWpZt0mzn38zmLW88h6nKmxUcyfSHwNd\n\tXmxLTuF6Hap7Hgv4pZlOVKlnb8laZ0yAYD6Dv73TRjRC5UKY50HRHpTgot1PKqBFjv\n\t1P5v9qedzcpQcUmCYzZKCxR6QGdSPiY9nfDpm1Es=", "From": "Paul Elder <paul.elder@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Date": "Fri, 19 Jun 2020 14:41:16 +0900", "Message-Id": "<20200619054123.19052-11-paul.elder@ideasonboard.com>", "X-Mailer": "git-send-email 2.27.0", "In-Reply-To": "<20200619054123.19052-1-paul.elder@ideasonboard.com>", "References": "<20200619054123.19052-1-paul.elder@ideasonboard.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH v2 10/17] v4l2: v4l2_camera_proxy: noop if\n\tstreamon when stream is already on", "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>", "X-List-Received-Date": "Fri, 19 Jun 2020 05:41:57 -0000" }, "content": "If VIDIOC_STREMAON is called when the stream is already on, do a noop.\n\nSigned-off-by: Paul Elder <paul.elder@ideasonboard.com>\n\n---\nNew in v2: (split from \"v4l2: v4l2_camera: Add isRunning()\")\n---\n src/v4l2/v4l2_camera_proxy.cpp | 3 +++\n 1 file changed, 3 insertions(+)", "diff": "diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp\nindex 63c6a2c..4d37662 100644\n--- a/src/v4l2/v4l2_camera_proxy.cpp\n+++ b/src/v4l2/v4l2_camera_proxy.cpp\n@@ -616,6 +616,9 @@ int V4L2CameraProxy::vidioc_streamon(V4L2CameraFile *cf, int *arg)\n {\n \tLOG(V4L2Compat, Debug) << \"Servicing vidioc_streamon fd = \" << cf->efd();\n \n+\tif (vcam_->isRunning())\n+\t\treturn 0;\n+\n \tint ret = lock(cf);\n \tif (ret < 0)\n \t\treturn ret;\n", "prefixes": [ "libcamera-devel", "v2", "10/17" ] }