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{ "id": 17293, "url": "https://patchwork.libcamera.org/api/patches/17293/?format=api", "web_url": "https://patchwork.libcamera.org/patch/17293/", "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": "<20220903230643.19284-1-laurent.pinchart@ideasonboard.com>", "date": "2022-09-03T23:06:43", "name": "[libcamera-devel] libcamera: v4l2_device: Map YCbCrEncoding::None to V4L2", "commit_ref": "a03ce60cf969b7b26b25c785f64cb5662635b702", "pull_url": null, "state": "accepted", "archived": false, "hash": "34b692234825230ac98ff795bdcdb0863ffbaf2f", "submitter": { "id": 2, "url": "https://patchwork.libcamera.org/api/people/2/?format=api", "name": "Laurent Pinchart", "email": "laurent.pinchart@ideasonboard.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/17293/mbox/", "series": [ { "id": 3468, "url": "https://patchwork.libcamera.org/api/series/3468/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3468", "date": "2022-09-03T23:06:43", "name": "[libcamera-devel] libcamera: v4l2_device: Map YCbCrEncoding::None to V4L2", "version": 1, "mbox": "https://patchwork.libcamera.org/series/3468/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/17293/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/17293/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 4B9A1C3272\n\tfor <parsemail@patchwork.libcamera.org>;\n\tSat, 3 Sep 2022 23:06:59 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id A1AB96203D;\n\tSun, 4 Sep 2022 01:06:58 +0200 (CEST)", "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 01F12603DD\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tSun, 4 Sep 2022 01:06:57 +0200 (CEST)", "from pendragon.ideasonboard.com (62-78-145-57.bb.dnainternet.fi\n\t[62.78.145.57])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 242A62E4;\n\tSun, 4 Sep 2022 01:06:57 +0200 (CEST)" ], "DKIM-Signature": [ "v=1; 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dkim=pass (1024-bit key; \n\tunprotected) header.d=ideasonboard.com\n\theader.i=@ideasonboard.com\n\theader.b=\"m1MtdSm0\"; dkim-atps=neutral", "To": "libcamera-devel@lists.libcamera.org", "Date": "Sun, 4 Sep 2022 02:06:43 +0300", "Message-Id": "<20220903230643.19284-1-laurent.pinchart@ideasonboard.com>", "X-Mailer": "git-send-email 2.35.1", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH] libcamera: v4l2_device: Map\n\tYCbCrEncoding::None to V4L2", "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>", "From": "Laurent Pinchart via libcamera-devel\n\t<libcamera-devel@lists.libcamera.org>", "Reply-To": "Laurent Pinchart <laurent.pinchart@ideasonboard.com>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "The ycbcrEncodingToV4l2 map is missing the YCbCrEncoding::None encoding,\nwhich results in a failure of V4L2Device::fromColorSpace() to convert\ncolor spaces from libcamera to V4L2 for RGB formats. Fix it by adding\nthe missing encoding. As V4L2 has no such encoding, use\nV4L2_YCBCR_ENC_DEFAULT as the value doesn't matter.\n\nSigned-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\n---\n src/libcamera/v4l2_device.cpp | 2 ++\n 1 file changed, 2 insertions(+)", "diff": "diff --git a/src/libcamera/v4l2_device.cpp b/src/libcamera/v4l2_device.cpp\nindex 1d899657bf7d..7f251bd820a0 100644\n--- a/src/libcamera/v4l2_device.cpp\n+++ b/src/libcamera/v4l2_device.cpp\n@@ -796,6 +796,8 @@ static const std::map<ColorSpace::TransferFunction, v4l2_xfer_func> transferFunc\n };\n \n static const std::map<ColorSpace::YcbcrEncoding, v4l2_ycbcr_encoding> ycbcrEncodingToV4l2 = {\n+\t/* V4L2 has no \"none\" encoding. */\n+\t{ ColorSpace::YcbcrEncoding::None, V4L2_YCBCR_ENC_DEFAULT },\n \t{ ColorSpace::YcbcrEncoding::Rec601, V4L2_YCBCR_ENC_601 },\n \t{ ColorSpace::YcbcrEncoding::Rec709, V4L2_YCBCR_ENC_709 },\n \t{ ColorSpace::YcbcrEncoding::Rec2020, V4L2_YCBCR_ENC_BT2020 },\n", "prefixes": [ "libcamera-devel" ] }