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{
    "id": 23443,
    "url": "https://patchwork.libcamera.org/api/patches/23443/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/23443/",
    "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": "<20250526101536.29222-13-mzamazal@redhat.com>",
    "date": "2025-05-26T10:15:32",
    "name": "[v6,12/12] libcamera: simple: Make raw streams working",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "808f359a64f599a9598ab2234c38b822a1c96153",
    "submitter": {
        "id": 177,
        "url": "https://patchwork.libcamera.org/api/people/177/?format=api",
        "name": "Milan Zamazal",
        "email": "mzamazal@redhat.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/23443/mbox/",
    "series": [
        {
            "id": 5194,
            "url": "https://patchwork.libcamera.org/api/series/5194/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5194",
            "date": "2025-05-26T10:15:20",
            "name": "Enable raw streams with software ISP",
            "version": 6,
            "mbox": "https://patchwork.libcamera.org/series/5194/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/23443/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/23443/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
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        "X-Mimecast-MFC-AGG-ID": "8JIIt2XnMjW1GjtFE-Z9xQ_1748254577",
        "From": "Milan Zamazal <mzamazal@redhat.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "Milan Zamazal <mzamazal@redhat.com>, Laurent Pinchart\n\t<laurent.pinchart@ideasonboard.com>, Kieran Bingham\n\t<kieran.bingham@ideasonboard.com>, =?utf-8?q?Barnab=C3=A1s_P=C5=91cze?=\n\t<barnabas.pocze@ideasonboard.com>, Paul Elder\n\t<paul.elder@ideasonboard.com>",
        "Subject": "[PATCH v6 12/12] libcamera: simple: Make raw streams working",
        "Date": "Mon, 26 May 2025 12:15:32 +0200",
        "Message-ID": "<20250526101536.29222-13-mzamazal@redhat.com>",
        "In-Reply-To": "<20250526101536.29222-1-mzamazal@redhat.com>",
        "References": "<20250526101536.29222-1-mzamazal@redhat.com>",
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        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "When a raw stream is requested, whether alone or together with a\nprocessed stream, its buffers must be handled outside the software ISP\nmachinery.  They serve as output buffers, even when a processed stream\nis produced.\n\nAt most one raw stream and at most one processed stream are supported\nand can be combined.  An example of producing both raw and processed\nfiles using `cam' application:\n\n  cam -c1 -C100 -Ffile# \\\n    -s role=viewfinder,width=1920,height=1080,pixelformat=RGB888 \\\n    -s role=raw,width=3280,height=2464,pixelformat=SRGGB8 \\\n\nNote the difference in viewfinder and raw stream sizes due to the fact\nthat debayering requires enlarging the image width, which enforces\nselecting a larger sensor resolution in this case.\n\nIn order to distinguish between different cases, processedRequested_ and\nrawRequested_ flags are copied from SimpleCameraConfiguration to\nSimpleCameraData after successful configure(), similarly to\nuseConversion_ flag.\n\nThis is the final step to make raw streams working.\n\nSigned-off-by: Milan Zamazal <mzamazal@redhat.com>\n---\n src/libcamera/pipeline/simple/simple.cpp | 35 ++++++++++++++++--------\n 1 file changed, 24 insertions(+), 11 deletions(-)",
    "diff": "diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp\nindex c7b05f66..0e893226 100644\n--- a/src/libcamera/pipeline/simple/simple.cpp\n+++ b/src/libcamera/pipeline/simple/simple.cpp\n@@ -346,6 +346,8 @@ public:\n \t};\n \tstd::queue<RequestOutputs> conversionQueue_;\n \tbool useConversion_;\n+\tbool processedRequested_;\n+\tbool rawRequested_;\n \n \tstd::unique_ptr<Converter> converter_;\n \tstd::unique_ptr<SoftwareIsp> swIsp_;\n@@ -871,10 +873,13 @@ void SimpleCameraData::imageBufferReady(FrameBuffer *buffer)\n \t * point converting an erroneous buffer.\n \t */\n \tif (buffer->metadata().status != FrameMetadata::FrameSuccess) {\n-\t\tif (!useConversion_) {\n+\t\tif (rawRequested_) {\n \t\t\t/* No conversion, just complete the request. */\n \t\t\tRequest *request = buffer->request();\n \t\t\tpipe->completeBuffer(request, buffer);\n+\t\t\tSimpleFrameInfo *info = frameInfo_.find(request->sequence());\n+\t\t\tif (info)\n+\t\t\t\tinfo->metadataRequired = false;\n \t\t\ttryCompleteRequest(request);\n \t\t\treturn;\n \t\t}\n@@ -884,7 +889,8 @@ void SimpleCameraData::imageBufferReady(FrameBuffer *buffer)\n \t\t * buffer for capture (unless the stream is being stopped), and\n \t\t * complete the request with all the user-facing buffers.\n \t\t */\n-\t\tif (buffer->metadata().status != FrameMetadata::FrameCancelled)\n+\t\tif (buffer->metadata().status != FrameMetadata::FrameCancelled &&\n+\t\t    !rawRequested_)\n \t\t\tvideo_->queueBuffer(buffer);\n \n \t\tif (conversionQueue_.empty())\n@@ -933,13 +939,14 @@ void SimpleCameraData::imageBufferReady(FrameBuffer *buffer)\n \t */\n \tif (useConversion_) {\n \t\tif (conversionQueue_.empty()) {\n-\t\t\tvideo_->queueBuffer(buffer);\n+\t\t\tif (!rawRequested_)\n+\t\t\t\tvideo_->queueBuffer(buffer);\n \t\t\treturn;\n \t\t}\n \n \t\tif (converter_)\n \t\t\tconverter_->queueBuffers(buffer, conversionQueue_.front().outputs);\n-\t\telse\n+\t\telse if (processedRequested_)\n \t\t\t/*\n \t\t\t * request->sequence() cannot be retrieved from `buffer' inside\n \t\t\t * queueBuffers because unique_ptr's make buffer->request() invalid\n@@ -949,6 +956,8 @@ void SimpleCameraData::imageBufferReady(FrameBuffer *buffer)\n \t\t\t\t\t     conversionQueue_.front().outputs);\n \n \t\tconversionQueue_.pop();\n+\t\tif (rawRequested_)\n+\t\t\tpipe->completeBuffer(request, buffer);\n \t\treturn;\n \t}\n \n@@ -986,7 +995,8 @@ void SimpleCameraData::tryCompleteRequest(Request *request)\n void SimpleCameraData::conversionInputDone(FrameBuffer *buffer)\n {\n \t/* Queue the input buffer back for capture. */\n-\tvideo_->queueBuffer(buffer);\n+\tif (!rawRequested_)\n+\t\tvideo_->queueBuffer(buffer);\n }\n \n void SimpleCameraData::conversionOutputDone(FrameBuffer *buffer)\n@@ -1506,6 +1516,8 @@ int SimplePipelineHandler::configure(Camera *camera, CameraConfiguration *c)\n \t/* Configure the converter if needed. */\n \tstd::vector<std::reference_wrapper<StreamConfiguration>> outputCfgs;\n \tdata->useConversion_ = config->needConversion();\n+\tdata->processedRequested_ = config->processedRequested_;\n+\tdata->rawRequested_ = config->rawRequested_;\n \n \tfor (unsigned int i = 0; i < config->size(); ++i) {\n \t\tStreamConfiguration &cfg = config->at(i);\n@@ -1544,7 +1556,7 @@ int SimplePipelineHandler::exportFrameBuffers(Camera *camera, Stream *stream,\n \t * Export buffers on the converter or capture video node, depending on\n \t * whether the converter is used or not.\n \t */\n-\tif (data->useConversion_)\n+\tif (data->useConversion_ && !data->rawRequested_)\n \t\treturn data->converter_\n \t\t\t       ? data->converter_->exportBuffers(stream, count, buffers)\n \t\t\t       : data->swIsp_->exportBuffers(stream, count, buffers);\n@@ -1567,7 +1579,7 @@ int SimplePipelineHandler::start(Camera *camera, [[maybe_unused]] const ControlL\n \t\treturn -EBUSY;\n \t}\n \n-\tif (data->useConversion_) {\n+\tif (data->useConversion_ && !data->rawRequested_) {\n \t\t/*\n \t\t * When using the converter allocate a fixed number of internal\n \t\t * buffers.\n@@ -1575,7 +1587,7 @@ int SimplePipelineHandler::start(Camera *camera, [[maybe_unused]] const ControlL\n \t\tret = video->allocateBuffers(kNumInternalBuffers,\n \t\t\t\t\t     &data->conversionBuffers_);\n \t} else {\n-\t\t/* Otherwise, prepare for using buffers from the only stream. */\n+\t\t/* Otherwise, prepare for using buffers from the only or raw stream. */\n \t\tStream *stream = &data->streams_[0];\n \t\tret = video->importBuffers(stream->configuration().bufferCount);\n \t}\n@@ -1617,8 +1629,9 @@ int SimplePipelineHandler::start(Camera *camera, [[maybe_unused]] const ControlL\n \t\t}\n \n \t\t/* Queue all internal buffers for capture. */\n-\t\tfor (std::unique_ptr<FrameBuffer> &buffer : data->conversionBuffers_)\n-\t\t\tvideo->queueBuffer(buffer.get());\n+\t\tif (!data->rawRequested_)\n+\t\t\tfor (std::unique_ptr<FrameBuffer> &buffer : data->conversionBuffers_)\n+\t\t\t\tvideo->queueBuffer(buffer.get());\n \t}\n \n \treturn 0;\n@@ -1669,7 +1682,7 @@ int SimplePipelineHandler::queueRequestDevice(Camera *camera, Request *request)\n \t\t * queue, it will be handed to the converter in the capture\n \t\t * completion handler.\n \t\t */\n-\t\tif (data->useConversion_) {\n+\t\tif (data->useConversion_ && !isFormatRaw(stream->configuration().pixelFormat)) {\n \t\t\tbuffers.emplace(stream, buffer);\n \t\t\tmetadataRequired = !!data->swIsp_;\n \t\t} else {\n",
    "prefixes": [
        "v6",
        "12/12"
    ]
}