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{
    "id": 3322,
    "url": "https://patchwork.libcamera.org/api/patches/3322/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/3322/",
    "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": "",
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        "webscm_url": ""
    },
    "msgid": "<20200325220252.GA14374@kaaira-HP-Pavilion-Notebook>",
    "date": "2020-03-25T22:02:52",
    "name": "[libcamera-devel,v2] libcamera: v4l2PixelFormat: Replace hex with fourCC",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "895733e26ff0d8e525f3956f5bf9205409283790",
    "submitter": {
        "id": 39,
        "url": "https://patchwork.libcamera.org/api/people/39/?format=api",
        "name": "Kaaira Gupta",
        "email": "kgupta@es.iitr.ac.in"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/3322/mbox/",
    "series": [
        {
            "id": 776,
            "url": "https://patchwork.libcamera.org/api/series/776/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=776",
            "date": "2020-03-25T22:02:52",
            "name": "[libcamera-devel,v2] libcamera: v4l2PixelFormat: Replace hex with fourCC",
            "version": 2,
            "mbox": "https://patchwork.libcamera.org/series/776/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/3322/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/3322/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<kgupta@es.iitr.ac.in>",
        "Received": [
            "from mail-pf1-x42e.google.com (mail-pf1-x42e.google.com\n\t[IPv6:2607:f8b0:4864:20::42e])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 3F1F760413\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 25 Mar 2020 23:03:04 +0100 (CET)",
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        "Date": "Thu, 26 Mar 2020 03:32:52 +0530",
        "From": "Kaaira Gupta <kgupta@es.iitr.ac.in>",
        "To": "libcamera-devel@lists.libcamera.org,\n\tKieran Bingham <kieran.bingham@ideasonboard.com>,\n\tHelen Koike <helen.koike@collabora.com>,\n\tVaishali Thakkar <vthakkar@vaishalithakkar.in>",
        "Message-ID": "<20200325220252.GA14374@kaaira-HP-Pavilion-Notebook>",
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        "Content-Type": "text/plain; charset=us-ascii",
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        "User-Agent": "Mutt/1.9.4 (2018-02-28)",
        "Subject": "[libcamera-devel] [PATCH v2] libcamera: v4l2PixelFormat: Replace\n\thex with fourCC",
        "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, 25 Mar 2020 22:03:04 -0000"
    },
    "content": "Print fourCC characters instead of the hex value in toString() as they are\nmore informative. Also, write the tests for this in formats.cpp\n\nSigned-off-by: Kaaira Gupta <kgupta@es.iitr.ac.in>\n---\n\nChanges since v1:\n\t- Add tests for checking this function.\n\t- use char[] instead of stringstream.\n\t- add checks for default value.\n\t- Print '.' for non-printable characters.\n\n src/libcamera/v4l2_videodevice.cpp | 19 ++++++++++++++++---\n test/v4l2_videodevice/formats.cpp  | 15 +++++++++++++++\n 2 files changed, 31 insertions(+), 3 deletions(-)",
    "diff": "diff --git a/src/libcamera/v4l2_videodevice.cpp b/src/libcamera/v4l2_videodevice.cpp\nindex b778181..f5c14aa 100644\n--- a/src/libcamera/v4l2_videodevice.cpp\n+++ b/src/libcamera/v4l2_videodevice.cpp\n@@ -336,9 +336,22 @@ bool V4L2BufferCache::Entry::operator==(const FrameBuffer &buffer) const\n  */\n std::string V4L2PixelFormat::toString() const\n {\n-\tchar str[11];\n-\tsnprintf(str, 11, \"0x%08x\", fourcc_);\n-\treturn str;\n+\tif (fourcc_ == 0)\n+\t\treturn \"Invalid\";\n+\n+\tchar ss[7] = {static_cast<char>(fourcc_ & 0x7f),\n+\t\t\t\t  static_cast<char>((fourcc_ >> 8) & 0x7f),\n+\t\t\t\t  static_cast<char>((fourcc_ >> 16) & 0x7f),\n+\t\t\t\t  static_cast<char>((fourcc_ >> 24) & 0x7f)};\n+\n+\tfor (unsigned int i = 0; i < strlen(ss); i++){\n+\t\tif (!isprint(ss[i]))\n+\t\t\tss[i]= '.';\n+\t}\n+\n+\tif (fourcc_ & (1 << 31))\n+\t\tstrcat(ss, \"-BE\");\n+\treturn ss;\n }\n \n /**\ndiff --git a/test/v4l2_videodevice/formats.cpp b/test/v4l2_videodevice/formats.cpp\nindex d504d17..f129c5c 100644\n--- a/test/v4l2_videodevice/formats.cpp\n+++ b/test/v4l2_videodevice/formats.cpp\n@@ -47,6 +47,21 @@ protected:\n \t\t\treturn TestFail;\n \t\t}\n \n+\t\tauto badfourcc = v4l2_fourcc( 1, 2, 3, 4 );\n+\t\tstd::vector<std::pair<uint32_t, const char*>> formats{\n+\t\t\t{V4L2_PIX_FMT_YUYV,\"YUYV\"},{0, \"Invalid\"}, {badfourcc, \"....\"},\n+\t\t\t{V4L2_PIX_FMT_Y16_BE,\"Y16 -BE\"}};\n+\n+\t\tfor (const auto &format :formats){\n+\t\t\tif (V4L2PixelFormat(format.first).toString()!=format.second){\n+\t\t\t\treturn TestFail;\n+\t\t\t}\n+\t\t}\n+\n+\t\tif (V4L2PixelFormat().toString() != \"Invalid\"){\n+\t\t\treturn TestFail;\n+\t\t}\n+\n \t\treturn TestPass;\n \t}\n };\n",
    "prefixes": [
        "libcamera-devel",
        "v2"
    ]
}