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{
    "id": 23059,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/23059/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/23059/",
    "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": "<20250327185945.159481-2-mzamazal@redhat.com>",
    "date": "2025-03-27T18:59:39",
    "name": "[v6,1/6] libcamera: software_isp: Track frames and requests",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": false,
    "hash": "d79764ea7667efdf27deb0a6f1264e2b12b171ab",
    "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/23059/mbox/",
    "series": [
        {
            "id": 5087,
            "url": "https://patchwork.libcamera.org/api/1.1/series/5087/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5087",
            "date": "2025-03-27T18:59:38",
            "name": "ipa: simple: Introduce metadata reporting",
            "version": 6,
            "mbox": "https://patchwork.libcamera.org/series/5087/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/23059/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/23059/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
        "X-Original-To": "parsemail@patchwork.libcamera.org",
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        "X-Mimecast-MFC-AGG-ID": "PZ9Cuq8tMoqFfzT7b8gORQ_1743101996",
        "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 v6 1/6] libcamera: software_isp: Track frames and requests",
        "Date": "Thu, 27 Mar 2025 19:59:39 +0100",
        "Message-ID": "<20250327185945.159481-2-mzamazal@redhat.com>",
        "In-Reply-To": "<20250327185945.159481-1-mzamazal@redhat.com>",
        "References": "<20250327185945.159481-1-mzamazal@redhat.com>",
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        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "Hardware pipelines track requests and other information related to\nparticular frames.  This hasn't been needed in software ISP so far.  But\nin order to be able to track metadata corresponding to a given frame,\nframe-request tracking mechanism starts being useful.  This patch\nintroduces the basic tracking structure, actual metadata handling is\nadded in the following patch.\n\nReviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>\nReviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\nTested-by: Kieran Bingham <kieran.bingham@ideasonboard.com> # Lenovo X13s\nSigned-off-by: Milan Zamazal <mzamazal@redhat.com>\n---\n src/libcamera/pipeline/simple/simple.cpp | 72 ++++++++++++++++++++++--\n 1 file changed, 68 insertions(+), 4 deletions(-)",
    "diff": "diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp\nindex 6e039bf3..004a8d53 100644\n--- a/src/libcamera/pipeline/simple/simple.cpp\n+++ b/src/libcamera/pipeline/simple/simple.cpp\n@@ -181,6 +181,54 @@ LOG_DEFINE_CATEGORY(SimplePipeline)\n \n class SimplePipelineHandler;\n \n+struct SimpleFrameInfo {\n+\tSimpleFrameInfo(uint32_t f, Request *r)\n+\t\t: frame(f), request(r)\n+\t{\n+\t}\n+\n+\tuint32_t frame;\n+\tRequest *request;\n+};\n+\n+class SimpleFrames\n+{\n+public:\n+\tvoid create(Request *request);\n+\tvoid destroy(uint32_t frame);\n+\tvoid clear();\n+\n+\tSimpleFrameInfo *find(uint32_t frame);\n+\n+private:\n+\tstd::map<uint32_t, SimpleFrameInfo> frameInfo_;\n+};\n+\n+void SimpleFrames::create(Request *request)\n+{\n+\tconst uint32_t frame = request->sequence();\n+\tauto [it, inserted] = frameInfo_.try_emplace(frame, frame, request);\n+\tASSERT(inserted);\n+}\n+\n+void SimpleFrames::destroy(uint32_t frame)\n+{\n+\tframeInfo_.erase(frame);\n+}\n+\n+void SimpleFrames::clear()\n+{\n+\tframeInfo_.clear();\n+}\n+\n+SimpleFrameInfo *SimpleFrames::find(uint32_t frame)\n+{\n+\tauto info = frameInfo_.find(frame);\n+\tif (info == frameInfo_.end())\n+\t\treturn nullptr;\n+\treturn &info->second;\n+}\n+\n struct SimplePipelineInfo {\n \tconst char *driver;\n \t/*\n@@ -293,11 +341,13 @@ public:\n \n \tstd::unique_ptr<Converter> converter_;\n \tstd::unique_ptr<SoftwareIsp> swIsp_;\n+\tSimpleFrames frameInfo_;\n \n private:\n \tvoid tryPipeline(unsigned int code, const Size &size);\n \tstatic std::vector<const MediaPad *> routedSourcePads(MediaPad *sink);\n \n+\tvoid completeRequest(Request *request);\n \tvoid conversionInputDone(FrameBuffer *buffer);\n \tvoid conversionOutputDone(FrameBuffer *buffer);\n \n@@ -785,7 +835,7 @@ void SimpleCameraData::imageBufferReady(FrameBuffer *buffer)\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\tpipe->completeRequest(request);\n+\t\t\tcompleteRequest(request);\n \t\t\treturn;\n \t\t}\n \n@@ -803,7 +853,7 @@ void SimpleCameraData::imageBufferReady(FrameBuffer *buffer)\n \t\tconst RequestOutputs &outputs = conversionQueue_.front();\n \t\tfor (auto &[stream, buf] : outputs.outputs)\n \t\t\tpipe->completeBuffer(outputs.request, buf);\n-\t\tpipe->completeRequest(outputs.request);\n+\t\tcompleteRequest(outputs.request);\n \t\tconversionQueue_.pop();\n \n \t\treturn;\n@@ -861,7 +911,7 @@ void SimpleCameraData::imageBufferReady(FrameBuffer *buffer)\n \n \t/* Otherwise simply complete the request. */\n \tpipe->completeBuffer(request, buffer);\n-\tpipe->completeRequest(request);\n+\tcompleteRequest(request);\n }\n \n void SimpleCameraData::clearIncompleteRequests()\n@@ -872,6 +922,18 @@ void SimpleCameraData::clearIncompleteRequests()\n \t}\n }\n \n+void SimpleCameraData::completeRequest(Request *request)\n+{\n+\tSimpleFrameInfo *info = frameInfo_.find(request->sequence());\n+\tif (!info) {\n+\t\t/* Something is really wrong, let's return. */\n+\t\treturn;\n+\t}\n+\n+\tframeInfo_.destroy(info->frame);\n+\tpipe()->completeRequest(request);\n+}\n+\n void SimpleCameraData::conversionInputDone(FrameBuffer *buffer)\n {\n \t/* Queue the input buffer back for capture. */\n@@ -885,7 +947,7 @@ void SimpleCameraData::conversionOutputDone(FrameBuffer *buffer)\n \t/* Complete the buffer and the request. */\n \tRequest *request = buffer->request();\n \tif (pipe->completeBuffer(request, buffer))\n-\t\tpipe->completeRequest(request);\n+\t\tcompleteRequest(request);\n }\n \n void SimpleCameraData::ispStatsReady(uint32_t frame, uint32_t bufferId)\n@@ -1398,6 +1460,7 @@ void SimplePipelineHandler::stopDevice(Camera *camera)\n \n \tvideo->bufferReady.disconnect(data, &SimpleCameraData::imageBufferReady);\n \n+\tdata->frameInfo_.clear();\n \tdata->clearIncompleteRequests();\n \tdata->conversionBuffers_.clear();\n \n@@ -1426,6 +1489,7 @@ int SimplePipelineHandler::queueRequestDevice(Camera *camera, Request *request)\n \t\t}\n \t}\n \n+\tdata->frameInfo_.create(request);\n \tif (data->useConversion_) {\n \t\tdata->conversionQueue_.push({ request, std::move(buffers) });\n \t\tif (data->swIsp_)\n",
    "prefixes": [
        "v6",
        "1/6"
    ]
}