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{ "id": 14195, "url": "https://patchwork.libcamera.org/api/1.1/patches/14195/?format=api", "web_url": "https://patchwork.libcamera.org/patch/14195/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/1.1/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": "<20211020110825.12902-3-david.plowman@raspberrypi.com>", "date": "2021-10-20T11:08:20", "name": "[libcamera-devel,v3,2/7] libcamera: Add ColorSpace fields to StreamConfiguration", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "721865036c40d698c5350fead92bdfdb95e63940", "submitter": { "id": 42, "url": "https://patchwork.libcamera.org/api/1.1/people/42/?format=api", "name": "David Plowman", "email": "david.plowman@raspberrypi.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/14195/mbox/", "series": [ { "id": 2641, "url": "https://patchwork.libcamera.org/api/1.1/series/2641/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=2641", "date": "2021-10-20T11:08:18", "name": "Colour spaces", "version": 3, "mbox": "https://patchwork.libcamera.org/series/2641/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/14195/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/14195/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 217D2BDB1C\n\tfor <parsemail@patchwork.libcamera.org>;\n\tWed, 20 Oct 2021 11:08:35 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 19D1768F5B;\n\tWed, 20 Oct 2021 13:08:32 +0200 (CEST)", "from mail-wm1-x336.google.com (mail-wm1-x336.google.com\n\t[IPv6:2a00:1450:4864:20::336])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 23D7368F58\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 20 Oct 2021 13:08:29 +0200 (CEST)", "by mail-wm1-x336.google.com with SMTP id g2so18090148wme.4\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 20 Oct 2021 04:08:29 -0700 (PDT)", "from pi4-davidp.pitowers.org\n\t([2a00:1098:3142:14:1ce1:9965:4328:89c4])\n\tby smtp.gmail.com with ESMTPSA id\n\tf20sm1929654wmq.38.2021.10.20.04.08.28\n\t(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n\tWed, 20 Oct 2021 04:08:28 -0700 (PDT)" ], "Authentication-Results": "lancelot.ideasonboard.com;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n\tunprotected) header.d=raspberrypi.com header.i=@raspberrypi.com\n\theader.b=\"KmTrBTsC\"; 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\n\tWed, 20 Oct 2021 04:08:28 -0700 (PDT)", "From": "David Plowman <david.plowman@raspberrypi.com>", "To": "libcamera-devel@lists.libcamera.org", "Date": "Wed, 20 Oct 2021 12:08:20 +0100", "Message-Id": "<20211020110825.12902-3-david.plowman@raspberrypi.com>", "X-Mailer": "git-send-email 2.20.1", "In-Reply-To": "<20211020110825.12902-1-david.plowman@raspberrypi.com>", "References": "<20211020110825.12902-1-david.plowman@raspberrypi.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH v3 2/7] libcamera: Add ColorSpace fields\n\tto StreamConfiguration", "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": "This is so that applications can choose appropriate color spaces which\nwill then be passed down to the V4L2 devices.\n\nThere are two fields: the \"requestedColorSpace\" which is the one an\napplication wants, and the \"actualColorSpace\" which is what the\nunderlying hardware can deliver, and which is filled in by the\nvalidate() method.\n\nSigned-off-by: David Plowman <david.plowman@raspberrypi.com>\n---\n include/libcamera/stream.h | 4 ++++\n src/libcamera/stream.cpp | 25 +++++++++++++++++++++++++\n 2 files changed, 29 insertions(+)", "diff": "diff --git a/include/libcamera/stream.h b/include/libcamera/stream.h\nindex 0c55e716..fe491ff5 100644\n--- a/include/libcamera/stream.h\n+++ b/include/libcamera/stream.h\n@@ -12,6 +12,7 @@\n #include <string>\n #include <vector>\n \n+#include <libcamera/color_space.h>\n #include <libcamera/framebuffer.h>\n #include <libcamera/geometry.h>\n #include <libcamera/pixel_format.h>\n@@ -47,6 +48,9 @@ struct StreamConfiguration {\n \n \tunsigned int bufferCount;\n \n+\tColorSpace requestedColorSpace;\n+\tColorSpace actualColorSpace;\n+\n \tStream *stream() const { return stream_; }\n \tvoid setStream(Stream *stream) { stream_ = stream; }\n \tconst StreamFormats &formats() const { return formats_; }\ndiff --git a/src/libcamera/stream.cpp b/src/libcamera/stream.cpp\nindex b421e17e..1ddbbb8c 100644\n--- a/src/libcamera/stream.cpp\n+++ b/src/libcamera/stream.cpp\n@@ -329,6 +329,31 @@ StreamConfiguration::StreamConfiguration(const StreamFormats &formats)\n * \\brief Requested number of buffers to allocate for the stream\n */\n \n+/**\n+ * \\var StreamConfiguration::requestedColorSpace\n+ * \\brief The ColorSpace this stream should have\n+ *\n+ * The generateConfiguration method will generate reasonable default\n+ * values (ColorSpace::Jpeg for stills, ColorSpace::Rec709 for video and\n+ * ColorSpace::Raw for raw streams) but applications are free to overwrite\n+ * this value.\n+ */\n+\n+/**\n+ * \\var StreamConfiguration::actualColorSpace\n+ * \\brief The ColorSpace the will be used for this stream\n+ *\n+ * This field is filled in by CameraConfiguration::validate().\n+ * Normally this should match the requestedColorSpace, but it may differ\n+ * if the hardware does not support it.\n+ *\n+ * In general cameras may have different constraints here, for example,\n+ * they may require all output streams to share the same color space.\n+ * Sometimes the fields within this color space may report \"Undefined\"\n+ * values if the hardware drivers are going to use a color space that\n+ * is not recognised by the ColorSpace class.\n+ */\n+\n /**\n * \\fn StreamConfiguration::stream()\n * \\brief Retrieve the stream associated with the configuration\n", "prefixes": [ "libcamera-devel", "v3", "2/7" ] }