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{
    "id": 23150,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/23150/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/23150/",
    "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": "<20250407085639.16180-9-mzamazal@redhat.com>",
    "date": "2025-04-07T08:56:34",
    "name": "[v4,08/11] libcamera: simple: Validate raw stream configurations",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "a11bbd87f43e7b9cf31e0596c04c45a5269a9b2a",
    "submitter": {
        "id": 177,
        "url": "https://patchwork.libcamera.org/api/1.1/people/177/?format=api",
        "name": "Milan Zamazal",
        "email": "mzamazal@redhat.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/23150/mbox/",
    "series": [
        {
            "id": 5117,
            "url": "https://patchwork.libcamera.org/api/1.1/series/5117/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5117",
            "date": "2025-04-07T08:56:26",
            "name": "Enable raw streams with software ISP",
            "version": 4,
            "mbox": "https://patchwork.libcamera.org/series/5117/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/23150/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/23150/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
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        "X-Mimecast-MFC-AGG-ID": "dt559nngPquZ0fnj1N0Urw_1744016235",
        "From": "Milan Zamazal <mzamazal@redhat.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "Milan Zamazal <mzamazal@redhat.com>,\n\tLaurent Pinchart <laurent.pinchart@ideasonboard.com>,\n\tKieran Bingham <kieran.bingham@ideasonboard.com>",
        "Subject": "[PATCH v4 08/11] libcamera: simple: Validate raw stream\n\tconfigurations",
        "Date": "Mon,  7 Apr 2025 10:56:34 +0200",
        "Message-ID": "<20250407085639.16180-9-mzamazal@redhat.com>",
        "In-Reply-To": "<20250407085639.16180-1-mzamazal@redhat.com>",
        "References": "<20250407085639.16180-1-mzamazal@redhat.com>",
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        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "SimpleCameraConfiguration::validate() looks for the best configuration.\nAs part of enabling raw stream support, the method must consider raw\nstreams in addition to the processed streams.\n\nIf only a processed stream is requested, nothing changes.\n\nIf only a raw stream is requested, the pixel format and output size may\nnot be adjusted.  The patch adds checks for this.\n\nIf both processed and raw streams are requested, things get more\ncomplicated.  The raw stream is expected to be passed through intact and\nall the adjustments are made for the processed streams.  We select a\npipe configuration for the processed streams.\n\nNote that with both processed and raw streams, the requested sizes must\nbe mutually matching, including resizing due to debayer requirements.\nFor example, the following `cam' setup is valid for imx219\n\n  cam -s role=viewfinder,width=1920,height=1080 \\\n      -s role=raw,width=3280,height=2464\n\nrather than\n\n  cam -s role=viewfinder,width=1920,height=1080 \\\n      -s role=raw,width=1920,height=1080\n\ndue to the resolution of 1924x1080 actually selected for debayering to\n1920x1080.  It is the application responsibility to select the right\nparameters for the raw stream.\n\nSetting up the right configurations is still not enough to make the raw\nstreams working.  Buffer handling must be changed in the simple\npipeline, which is addressed in followup patches.\n\nSigned-off-by: Milan Zamazal <mzamazal@redhat.com>\n---\n src/libcamera/pipeline/simple/simple.cpp | 103 ++++++++++++++++-------\n 1 file changed, 74 insertions(+), 29 deletions(-)",
    "diff": "diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp\nindex 6b65d79f..313c454c 100644\n--- a/src/libcamera/pipeline/simple/simple.cpp\n+++ b/src/libcamera/pipeline/simple/simple.cpp\n@@ -27,6 +27,7 @@\n #include <libcamera/camera.h>\n #include <libcamera/color_space.h>\n #include <libcamera/control_ids.h>\n+#include <libcamera/geometry.h>\n #include <libcamera/pixel_format.h>\n #include <libcamera/request.h>\n #include <libcamera/stream.h>\n@@ -1168,6 +1169,9 @@ CameraConfiguration::Status SimpleCameraConfiguration::validate()\n \tpipeConfig_ = nullptr;\n \n \tfor (const SimpleCameraData::Configuration *pipeConfig : *configs) {\n+\t\tif (data_->processedRequested_ && pipeConfig->raw)\n+\t\t\tcontinue;\n+\n \t\tconst Size &size = pipeConfig->captureSize;\n \n \t\tif (size.width >= maxStreamSize.width &&\n@@ -1209,37 +1213,60 @@ CameraConfiguration::Status SimpleCameraConfiguration::validate()\n \tfor (unsigned int i = 0; i < config_.size(); ++i) {\n \t\tStreamConfiguration &cfg = config_[i];\n \n+\t\t/*\n+\t\t * If both processed and raw streams are requested, the pipe\n+\t\t * configuration is set up for the processed stream. The raw\n+\t\t * configuration needs to be compared against the capture format and\n+\t\t * size in such a case.\n+\t\t */\n+\t\tconst bool rawStream = cfg.colorSpace == ColorSpace::Raw;\n+\t\tconst bool sideRawStream = rawStream && data_->processedRequested_;\n+\n \t\t/* Adjust the pixel format and size. */\n-\t\tauto it = std::find(pipeConfig_->outputFormats.begin(),\n-\t\t\t\t    pipeConfig_->outputFormats.end(),\n-\t\t\t\t    cfg.pixelFormat);\n-\t\tif (it == pipeConfig_->outputFormats.end())\n-\t\t\tit = pipeConfig_->outputFormats.begin();\n-\n-\t\tPixelFormat pixelFormat = *it;\n-\t\tif (cfg.pixelFormat != pixelFormat) {\n-\t\t\tLOG(SimplePipeline, Debug) << \"Adjusting pixel format\";\n-\t\t\tcfg.pixelFormat = pixelFormat;\n-\t\t\tif (cfg.colorSpace && cfg.colorSpace != ColorSpace::Raw)\n+\n+\t\tif (!sideRawStream) {\n+\t\t\tauto it = std::find(pipeConfig_->outputFormats.begin(),\n+\t\t\t\t\t    pipeConfig_->outputFormats.end(),\n+\t\t\t\t\t    cfg.pixelFormat);\n+\t\t\tif (it == pipeConfig_->outputFormats.end())\n+\t\t\t\tit = pipeConfig_->outputFormats.begin();\n+\n+\t\t\tPixelFormat pixelFormat = *it;\n+\n+\t\t\tif (cfg.pixelFormat != pixelFormat) {\n+\t\t\t\tif (rawStream) {\n+\t\t\t\t\tLOG(SimplePipeline, Info)\n+\t\t\t\t\t\t<< \"Raw pixel format \"\n+\t\t\t\t\t\t<< cfg.pixelFormat\n+\t\t\t\t\t\t<< \" doesn't match any of the pipe output formats\";\n+\t\t\t\t\treturn Invalid;\n+\t\t\t\t}\n+\t\t\t\tLOG(SimplePipeline, Debug)\n+\t\t\t\t\t<< \"Adjusting pixel format from \" << cfg.pixelFormat\n+\t\t\t\t\t<< \" to \" << pixelFormat;\n+\t\t\t\tcfg.pixelFormat = pixelFormat;\n+\t\t\t\tif (cfg.colorSpace && cfg.colorSpace != ColorSpace::Raw)\n+\t\t\t\t\tcfg.colorSpace->adjust(pixelFormat);\n+\t\t\t\tstatus = Adjusted;\n+\t\t\t}\n+\n+\t\t\tif (!cfg.colorSpace) {\n+\t\t\t\tconst PixelFormatInfo &info = PixelFormatInfo::info(pixelFormat);\n+\t\t\t\tswitch (info.colourEncoding) {\n+\t\t\t\tcase PixelFormatInfo::ColourEncodingRGB:\n+\t\t\t\t\tcfg.colorSpace = ColorSpace::Srgb;\n+\t\t\t\t\tbreak;\n+\t\t\t\tcase libcamera::PixelFormatInfo::ColourEncodingYUV:\n+\t\t\t\t\tcfg.colorSpace = ColorSpace::Sycc;\n+\t\t\t\t\tbreak;\n+\t\t\t\tdefault:\n+\t\t\t\t\tcfg.colorSpace = ColorSpace::Raw;\n+\t\t\t\t}\n \t\t\t\tcfg.colorSpace->adjust(pixelFormat);\n-\t\t\tstatus = Adjusted;\n-\t\t}\n-\t\tif (!cfg.colorSpace) {\n-\t\t\tconst PixelFormatInfo &info = PixelFormatInfo::info(pixelFormat);\n-\t\t\tswitch (info.colourEncoding) {\n-\t\t\tcase PixelFormatInfo::ColourEncodingRGB:\n-\t\t\t\tcfg.colorSpace = ColorSpace::Srgb;\n-\t\t\t\tbreak;\n-\t\t\tcase libcamera::PixelFormatInfo::ColourEncodingYUV:\n-\t\t\t\tcfg.colorSpace = ColorSpace::Sycc;\n-\t\t\t\tbreak;\n-\t\t\tdefault:\n-\t\t\t\tcfg.colorSpace = ColorSpace::Raw;\n \t\t\t}\n-\t\t\tcfg.colorSpace->adjust(pixelFormat);\n \t\t}\n \n-\t\tif (!pipeConfig_->outputSizes.contains(cfg.size)) {\n+\t\tif (!sideRawStream && !pipeConfig_->outputSizes.contains(cfg.size)) {\n \t\t\tSize adjustedSize = pipeConfig_->captureSize;\n \t\t\t/*\n \t\t\t * The converter (when present) may not be able to output\n@@ -1247,8 +1274,17 @@ CameraConfiguration::Status SimpleCameraConfiguration::validate()\n \t\t\t * not guaranteed to be a valid output size. In such cases, use\n \t\t\t * the smaller valid output size closest to the requested.\n \t\t\t */\n-\t\t\tif (!pipeConfig_->outputSizes.contains(adjustedSize))\n+\t\t\tif (!pipeConfig_->outputSizes.contains(adjustedSize)) {\n+\t\t\t\tif (rawStream) {\n+\t\t\t\t\tLOG(SimplePipeline, Info)\n+\t\t\t\t\t\t<< \"Raw output size \"\n+\t\t\t\t\t\t<< cfg.size\n+\t\t\t\t\t\t<< \" doesn't match any of the pipe output sizes: \"\n+\t\t\t\t\t\t<< pipeConfig_->outputSizes;\n+\t\t\t\t\treturn Invalid;\n+\t\t\t\t}\n \t\t\t\tadjustedSize = adjustSize(cfg.size, pipeConfig_->outputSizes);\n+\t\t\t}\n \t\t\tLOG(SimplePipeline, Debug)\n \t\t\t\t<< \"Adjusting size from \" << cfg.size\n \t\t\t\t<< \" to \" << adjustedSize;\n@@ -1258,11 +1294,20 @@ CameraConfiguration::Status SimpleCameraConfiguration::validate()\n \n \t\t/* \\todo Create a libcamera core class to group format and size */\n \t\tif (cfg.pixelFormat != pipeConfig_->captureFormat ||\n-\t\t    cfg.size != pipeConfig_->captureSize)\n+\t\t    cfg.size != pipeConfig_->captureSize) {\n+\t\t\tif (rawStream) {\n+\t\t\t\tLOG(SimplePipeline, Info)\n+\t\t\t\t\t<< \"Raw output format \" << cfg.pixelFormat\n+\t\t\t\t\t<< \" and size \" << cfg.size\n+\t\t\t\t\t<< \" not matching pipe format \" << pipeConfig_->captureFormat\n+\t\t\t\t\t<< \" and size \" << pipeConfig_->captureSize;\n+\t\t\t\treturn Invalid;\n+\t\t\t}\n \t\t\tneedConversion_ = true;\n+\t\t}\n \n \t\t/* Set the stride, frameSize and bufferCount. */\n-\t\tif (needConversion_) {\n+\t\tif (needConversion_ && !rawStream) {\n \t\t\tstd::tie(cfg.stride, cfg.frameSize) =\n \t\t\t\tdata_->converter_\n \t\t\t\t\t? data_->converter_->strideAndFrameSize(cfg.pixelFormat,\n",
    "prefixes": [
        "v4",
        "08/11"
    ]
}