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{
    "id": 21376,
    "url": "https://patchwork.libcamera.org/api/covers/21376/?format=api",
    "web_url": "https://patchwork.libcamera.org/cover/21376/",
    "project": {
        "id": 1,
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        "name": "libcamera",
        "link_name": "libcamera",
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    "msgid": "<20240926093623.94136-1-umang.jain@ideasonboard.com>",
    "date": "2024-09-26T09:36:19",
    "name": "[v8,0/4] rkisp1: Plumb the DW100 dewarper as converter",
    "submitter": {
        "id": 86,
        "url": "https://patchwork.libcamera.org/api/people/86/?format=api",
        "name": "Umang Jain",
        "email": "umang.jain@ideasonboard.com"
    },
    "mbox": "https://patchwork.libcamera.org/cover/21376/mbox/",
    "series": [
        {
            "id": 4629,
            "url": "https://patchwork.libcamera.org/api/series/4629/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=4629",
            "date": "2024-09-26T09:36:19",
            "name": "rkisp1: Plumb the DW100 dewarper as converter",
            "version": 8,
            "mbox": "https://patchwork.libcamera.org/series/4629/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/covers/21376/comments/",
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
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            "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id CEE11C3257\n\tfor <parsemail@patchwork.libcamera.org>;\n\tThu, 26 Sep 2024 09:36:36 +0000 (UTC)",
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        "From": "Umang Jain <umang.jain@ideasonboard.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "Laurent Pinchart <laurent.pinchart@ideasonboard.com>,\n\tStefan Klug <stefan.klug@ideasonboard.com>,\n\tUmang Jain <umang.jain@ideasonboard.com>",
        "Subject": "[PATCH v8 0/4] rkisp1: Plumb the DW100 dewarper as converter",
        "Date": "Thu, 26 Sep 2024 15:06:19 +0530",
        "Message-ID": "<20240926093623.94136-1-umang.jain@ideasonboard.com>",
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        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "This series intends to support i.MX8MP DW100 dewarper in rkisp1\npipeline handler. It is modelled as a V4L2M2MConverter and has a\nhelper to support scaler crop control. Extensions to the base converter\ninterface has also been done initially in the series.\n\nPatch 1/4 add ability to add features to the Converter interface.\nEach Converter can dictate its own features it can support\n\nPatch 2/4 adds crop feature enumeration and virtual functions and\ngets implemented in the V4L2 M2M converter. \n\nPatch 3/4 prepares the rkisp1 pipeline handler to register controls\nfor the camera, outside of the IPA. The dw100 converter will let us\nsupport scaler crop - which will be registered as one of the camera\ncontrols.\n\nPatch 4/4 plumbs the DW100 as converter in the rkisp1 pipeline handler\n\nSeries is based on top of \n[PATCH] libcamera: v4l2_videodevice: Add getSelection() function\n\nTesting:\n--------\nThe series is tested on i.MX8MP and cam utility, by setting scaler crop\ncontrol via capture script with IMX283 attached to isp0.\n\nChanges in v8:\n- Fix subject to \"rkisp1: Plumb the DW100 dewarper as converter\"\n- Fix documentation in 2/4\n- Drop features_ member variable in 2/4 in V4L2M2MStream class\n- Use V4L2_SEL_TGT_CROP_BOUNDS for querying max crop bound (2/4)\n- Introduce V4L2M2MStream::getSelection() helper as well (2/4)\n- Fix race while setting scalercrop metadata in 4/4\n- Format debug logs in 2/4 and 4/4\n- Reduce indentation in 2/4 for discovering input crop\n\nChanges in v7:\n- Documentation improvements for input crop (1/4)\n- Crop feature now discovered dynamically at construction (2/4)\n- Handling of scaler crop control is deferred. Now scaler\n  crop is applied at dewarper after buffer from ISP is ready (4/4)\n- Add explanatory comments about dw100/i.MX8MP platform (4/4)\n- Drop dw100 Converter sub-classing from v6\n- lower indentation (4/4)\n- report scaler crop value for all frames now. (4/4)\n- Use ScopeExitActions on dewarp cleanup paths (4/4)\n- copy updateControls() documentation from IPU3 (3/4)\n\nChanges in v6:\n- clarify crop expectations - set on input side\n- Rename setCrop() to setInputCrop\n- Rename getFeatures() to features()\n- Rename getCropBounds() to inputCropBounds()\n- rename Features::Crop to Features::InputCrop\n- Document crop functionality properly\n- Improve error paths\n- exportsBuffers() between RkISP1Path<>dewarper instead of\n  allocateBuffers.\n\nChanges in v5:\n- Return -ENOTSUP for base implementation for virtual setCrop() in 2/5\n- Return configured size for base implemention for virtual getCropBounds\n  in 2/5.\n- Fix a bug in getting crop bounds when streams are not configured\n- drop getSelection() V4L2VideoDevices additions from v4. we can get\n  bounds by setSelection by setting 1x1 and UINT_MAX x UINT_MAX\n  rectangles.\n\nchanges in v4:\n- rework Converter Interface to expose Features\n- Add Crop Feature interface in Converter setCrop and setCropBound\n- Implement cropping in V4L2M2MConverter for V4L2 M2M based converters\n- Introduce useDewarper_ to denote when to use dewarper (simplied code\n  reading).\n- Trivial typo fixing.\n\nChanges in v3:\n- Base on top of [2]\n- Model dewarper class as converter, so can be used with Simple\n  pipeline-handler/ISI\n\nChanges in v2:\n- Fix raw capture configuration, disable dewarper in that case\n\nUmang Jain (4):\n  libcamera: converter: Add interface for feature flags\n  libcamera: converter: Add interface to support cropping capability\n  libcamera: rkisp1: Prepare for additional camera controls\n  libcamera: rkisp1: Plumb the dw100 dewarper as V4L2M2M converter\n\n include/libcamera/internal/converter.h        |  19 +-\n .../internal/converter/converter_v4l2_m2m.h   |  11 +\n src/libcamera/converter.cpp                   |  64 ++++-\n .../converter/converter_v4l2_m2m.cpp          | 114 +++++++++\n src/libcamera/pipeline/rkisp1/rkisp1.cpp      | 228 +++++++++++++++++-\n 5 files changed, 424 insertions(+), 12 deletions(-)"
}