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{
    "id": 4073,
    "url": "https://patchwork.libcamera.org/api/patches/4073/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/4073/",
    "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": "<20200617164442.2643-1-david.plowman@raspberrypi.com>",
    "date": "2020-06-17T16:44:42",
    "name": "[libcamera-devel] libcamera: add support for planar YUV422 and YUV420 formats",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "a5bafc0e93f5fdb650674172f0d212d6f1dc5780",
    "submitter": {
        "id": 42,
        "url": "https://patchwork.libcamera.org/api/people/42/?format=api",
        "name": "David Plowman",
        "email": "david.plowman@raspberrypi.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/4073/mbox/",
    "series": [
        {
            "id": 1012,
            "url": "https://patchwork.libcamera.org/api/series/1012/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=1012",
            "date": "2020-06-17T16:44:42",
            "name": "[libcamera-devel] libcamera: add support for planar YUV422 and YUV420 formats",
            "version": 1,
            "mbox": "https://patchwork.libcamera.org/series/1012/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/4073/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/4073/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<david.plowman@raspberrypi.com>",
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        "X-Received": "by 2002:adf:fa89:: with SMTP id h9mr165499wrr.120.1592412287114; \n\tWed, 17 Jun 2020 09:44:47 -0700 (PDT)",
        "From": "David Plowman <david.plowman@raspberrypi.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Wed, 17 Jun 2020 17:44:42 +0100",
        "Message-Id": "<20200617164442.2643-1-david.plowman@raspberrypi.com>",
        "X-Mailer": "git-send-email 2.20.1",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [PATCH] libcamera: add support for planar YUV422\n\tand YUV420 formats",
        "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": "Wed, 17 Jun 2020 16:44:48 -0000"
    },
    "content": "These formats can be helpful when downstream applications or libraries\nsupport them natively (avoiding a costly conversion).\n\nSigned-off-by: David Plowman <david.plowman@raspberrypi.com>\n---\n src/libcamera/formats.cpp          | 14 ++++++++++++++\n src/libcamera/v4l2_pixelformat.cpp |  2 ++\n src/v4l2/v4l2_camera_proxy.cpp     |  2 ++\n 3 files changed, 18 insertions(+)",
    "diff": "diff --git a/src/libcamera/formats.cpp b/src/libcamera/formats.cpp\nindex 2ac3b41..dcd1dcf 100644\n--- a/src/libcamera/formats.cpp\n+++ b/src/libcamera/formats.cpp\n@@ -268,6 +268,20 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{\n \t\t.colourEncoding = PixelFormatInfo::ColourEncodingYUV,\n \t\t.packed = false,\n \t} },\n+\t{ PixelFormat(DRM_FORMAT_YUV422), {\n+\t\t.format = PixelFormat(DRM_FORMAT_YUV422),\n+\t\t.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_YUV422P),\n+\t\t.bitsPerPixel = 16,\n+\t\t.colourEncoding = PixelFormatInfo::ColourEncodingYUV,\n+\t\t.packed = false,\n+\t} },\n+\t{ PixelFormat(DRM_FORMAT_YUV420), {\n+\t\t.format = PixelFormat(DRM_FORMAT_YUV420),\n+\t\t.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_YUV420),\n+\t\t.bitsPerPixel = 12,\n+\t\t.colourEncoding = PixelFormatInfo::ColourEncodingYUV,\n+\t\t.packed = false,\n+\t} },\n \n \t/* Greyscale formats. */\n \t{ PixelFormat(DRM_FORMAT_R8), {\ndiff --git a/src/libcamera/v4l2_pixelformat.cpp b/src/libcamera/v4l2_pixelformat.cpp\nindex 94fae47..01778c0 100644\n--- a/src/libcamera/v4l2_pixelformat.cpp\n+++ b/src/libcamera/v4l2_pixelformat.cpp\n@@ -64,6 +64,8 @@ const std::map<V4L2PixelFormat, PixelFormat> vpf2pf{\n \t{ V4L2PixelFormat(V4L2_PIX_FMT_NV61), PixelFormat(DRM_FORMAT_NV61) },\n \t{ V4L2PixelFormat(V4L2_PIX_FMT_NV12), PixelFormat(DRM_FORMAT_NV12) },\n \t{ V4L2PixelFormat(V4L2_PIX_FMT_NV21), PixelFormat(DRM_FORMAT_NV21) },\n+\t{ V4L2PixelFormat(V4L2_PIX_FMT_YUV422P), PixelFormat(DRM_FORMAT_YUV422) },\n+\t{ V4L2PixelFormat(V4L2_PIX_FMT_YUV420), PixelFormat(DRM_FORMAT_YUV420) },\n \n \t/* Greyscale formats. */\n \t{ V4L2PixelFormat(V4L2_PIX_FMT_GREY), PixelFormat(DRM_FORMAT_R8) },\ndiff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp\nindex d7f14e6..a54d47e 100644\n--- a/src/v4l2/v4l2_camera_proxy.cpp\n+++ b/src/v4l2/v4l2_camera_proxy.cpp\n@@ -576,6 +576,8 @@ static const std::array<PixelFormatInfo, 14> pixelFormatInfo = {{\n \t{ PixelFormat(DRM_FORMAT_NV61),\t\tV4L2_PIX_FMT_NV61,\t2, {{ {  8, 1, 1 }, { 16, 2, 1 }, {  0, 0, 0 } }} },\n \t{ PixelFormat(DRM_FORMAT_NV24),\t\tV4L2_PIX_FMT_NV24,\t2, {{ {  8, 1, 1 }, { 16, 1, 1 }, {  0, 0, 0 } }} },\n \t{ PixelFormat(DRM_FORMAT_NV42),\t\tV4L2_PIX_FMT_NV42,\t2, {{ {  8, 1, 1 }, { 16, 1, 1 }, {  0, 0, 0 } }} },\n+\t{ PixelFormat(DRM_FORMAT_YUV422),\tV4L2_PIX_FMT_YUV422P,\t2, {{ {  8, 1, 1 }, { 8, 2, 1 }, {  8, 2, 1 } }} },\n+\t{ PixelFormat(DRM_FORMAT_YUV420),\tV4L2_PIX_FMT_YUV420,\t2, {{ {  8, 1, 1 }, { 8, 2, 2 }, {  8, 2, 2 } }} },\n \t/* Compressed formats. */\n \t/*\n \t * \\todo Get a better image size estimate for MJPEG, via\n",
    "prefixes": [
        "libcamera-devel"
    ]
}