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{
    "id": 18130,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/18130/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/18130/",
    "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": "<20230118085953.7027-5-naush@raspberrypi.com>",
    "date": "2023-01-18T08:59:45",
    "name": "[libcamera-devel,v5,04/12] pipeline: raspberrypi: Reorder startup drop frame initialisation",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": false,
    "hash": "ff791e119ad0da0aa7691ec299702cf9d4d0e1e9",
    "submitter": {
        "id": 34,
        "url": "https://patchwork.libcamera.org/api/1.1/people/34/?format=api",
        "name": "Naushir Patuck",
        "email": "naush@raspberrypi.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/18130/mbox/",
    "series": [
        {
            "id": 3713,
            "url": "https://patchwork.libcamera.org/api/1.1/series/3713/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3713",
            "date": "2023-01-18T08:59:41",
            "name": "Raspberry Pi: Platform configuration and buffer allocation improvements",
            "version": 5,
            "mbox": "https://patchwork.libcamera.org/series/3713/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/18130/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/18130/checks/",
    "tags": {},
    "headers": {
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        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Wed, 18 Jan 2023 08:59:45 +0000",
        "Message-Id": "<20230118085953.7027-5-naush@raspberrypi.com>",
        "X-Mailer": "git-send-email 2.25.1",
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        "References": "<20230118085953.7027-1-naush@raspberrypi.com>",
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        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [PATCH v5 04/12] pipeline: raspberrypi: Reorder\n\tstartup drop frame initialisation",
        "X-BeenThere": "libcamera-devel@lists.libcamera.org",
        "X-Mailman-Version": "2.1.29",
        "Precedence": "list",
        "List-Id": "<libcamera-devel.lists.libcamera.org>",
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        "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>",
        "From": "Naushir Patuck via libcamera-devel\n\t<libcamera-devel@lists.libcamera.org>",
        "Reply-To": "Naushir Patuck <naush@raspberrypi.com>",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "Reorder the code such that the IPA requested startup drop frames count is\navailable before the pipeline handler allocates any stream buffers.\n\nThis will be used in a subsequent change to stop Unicam buffer allocations if\nthere are no startup drop frames required and the application has configured a\nraw stream and always provides buffers for it.\n\nSigned-off-by: Naushir Patuck <naush@raspberrypi.com>\nReviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\nReviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>\n---\n .../pipeline/raspberrypi/raspberrypi.cpp      | 30 +++++++++----------\n 1 file changed, 15 insertions(+), 15 deletions(-)",
    "diff": "diff --git a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\nindex 6bf9a669c679..8d325c7a18c5 100644\n--- a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n+++ b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n@@ -1037,21 +1037,6 @@ int PipelineHandlerRPi::start(Camera *camera, const ControlList *controls)\n \tRPiCameraData *data = cameraData(camera);\n \tint ret;\n \n-\tfor (auto const stream : data->streams_)\n-\t\tstream->resetBuffers();\n-\n-\tif (!data->buffersAllocated_) {\n-\t\t/* Allocate buffers for internal pipeline usage. */\n-\t\tret = prepareBuffers(camera);\n-\t\tif (ret) {\n-\t\t\tLOG(RPI, Error) << \"Failed to allocate buffers\";\n-\t\t\tdata->freeBuffers();\n-\t\t\tstop(camera);\n-\t\t\treturn ret;\n-\t\t}\n-\t\tdata->buffersAllocated_ = true;\n-\t}\n-\n \t/* Check if a ScalerCrop control was specified. */\n \tif (controls)\n \t\tdata->applyScalerCrop(*controls);\n@@ -1068,6 +1053,21 @@ int PipelineHandlerRPi::start(Camera *camera, const ControlList *controls)\n \t/* Configure the number of dropped frames required on startup. */\n \tdata->dropFrameCount_ = startConfig.dropFrameCount;\n \n+\tfor (auto const stream : data->streams_)\n+\t\tstream->resetBuffers();\n+\n+\tif (!data->buffersAllocated_) {\n+\t\t/* Allocate buffers for internal pipeline usage. */\n+\t\tret = prepareBuffers(camera);\n+\t\tif (ret) {\n+\t\t\tLOG(RPI, Error) << \"Failed to allocate buffers\";\n+\t\t\tdata->freeBuffers();\n+\t\t\tstop(camera);\n+\t\t\treturn ret;\n+\t\t}\n+\t\tdata->buffersAllocated_ = true;\n+\t}\n+\n \t/* We need to set the dropFrameCount_ before queueing buffers. */\n \tret = queueAllBuffers(camera);\n \tif (ret) {\n",
    "prefixes": [
        "libcamera-devel",
        "v5",
        "04/12"
    ]
}