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{
    "id": 16058,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/16058/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/16058/",
    "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": "<20220526082737.1081262-10-chenghaoyang@google.com>",
    "date": "2022-05-26T08:27:37",
    "name": "[libcamera-devel,v2,9/9] ipu3: Fixes frame delay",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "5afbbf58145366fefcaa8c8bdd5bd46aa9db9d39",
    "submitter": {
        "id": 117,
        "url": "https://patchwork.libcamera.org/api/1.1/people/117/?format=api",
        "name": "Cheng-Hao Yang",
        "email": "chenghaoyang@chromium.org"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/16058/mbox/",
    "series": [
        {
            "id": 3141,
            "url": "https://patchwork.libcamera.org/api/1.1/series/3141/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3141",
            "date": "2022-05-26T08:27:28",
            "name": "Use two imgus in ipu3 pipeline handler",
            "version": 2,
            "mbox": "https://patchwork.libcamera.org/series/3141/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/16058/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/16058/checks/",
    "tags": {},
    "headers": {
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        "X-Google-Original-From": "Harvey Yang <chenghaoyang@google.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Thu, 26 May 2022 08:27:37 +0000",
        "Message-Id": "<20220526082737.1081262-10-chenghaoyang@google.com>",
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        "References": "<20220526082737.1081262-1-chenghaoyang@google.com>",
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        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [PATCH v2 9/9] ipu3: Fixes frame delay",
        "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": "Harvey Yang via libcamera-devel <libcamera-devel@lists.libcamera.org>",
        "Reply-To": "Harvey Yang <chenghaoyang@chromium.org>",
        "Cc": "Harvey Yang <chenghaoyang@google.com>,\n\tHarvey Yang <chenghaoyang@chromium.org>",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "Like the shipped ipu3 HAL, handle the frame delay with one extra input,\nneeded for the first frame and StillCapture's non-sequential frame\nrequests.\n\nSigned-off-by: Harvey Yang <chenghaoyang@chromium.org>\n---\n src/libcamera/pipeline/ipu3/ipu3.cpp | 73 +++++++++++++++++++++++-----\n 1 file changed, 62 insertions(+), 11 deletions(-)",
    "diff": "diff --git a/src/libcamera/pipeline/ipu3/ipu3.cpp b/src/libcamera/pipeline/ipu3/ipu3.cpp\nindex e26c2736..8689cf8b 100644\n--- a/src/libcamera/pipeline/ipu3/ipu3.cpp\n+++ b/src/libcamera/pipeline/ipu3/ipu3.cpp\n@@ -90,6 +90,9 @@ public:\n \n \tControlInfoMap ipaControls_;\n \n+\tbool firstRequest_ = true;\n+\tint lastRequestSequence_ = -1;\n+\n private:\n \tvoid metadataReady(unsigned int id, const ControlList &metadata);\n \tvoid paramsBufferReady(unsigned int id);\n@@ -565,6 +568,9 @@ int PipelineHandlerIPU3::configure(Camera *camera, CameraConfiguration *c)\n \tCIO2Device *cio2 = &data->cio2_;\n \tV4L2DeviceFormat outputFormat;\n \n+\tdata->firstRequest_ = true;\n+\tdata->lastRequestSequence_ = -1;\n+\n \tImgUDevice::PipeConfig imguConfig1 = config->imguConfig1();\n \tuseImgu1_ = !imguConfig1.isNull();\n \n@@ -1427,6 +1433,11 @@ void IPU3CameraData::paramsBufferReady(unsigned int id)\n \tif (!info)\n \t\treturn;\n \n+\tint yuvCount = firstRequest_ ? 2 : 1;\n+\tint stillCount = firstRequest_ || (lastRequestSequence_ + 1) != static_cast<int>(info->request->sequence()) ? 2 : 1;\n+\n+\tfirstRequest_ = false;\n+\n \tbool hasYuv = false;\n \tbool hasCapture = false;\n \t/* Queue all buffers from the request aimed for the ImgU. */\n@@ -1436,33 +1447,53 @@ void IPU3CameraData::paramsBufferReady(unsigned int id)\n \n \t\tif (stream == &outStream_) {\n \t\t\thasYuv = true;\n-\t\t\timgu0_->output_->queueBuffer(outbuffer);\n+\n+\t\t\tfor (int i = 0; i < yuvCount; ++i) {\n+\t\t\t\tbufferReturnCounters[outbuffer] += 1;\n+\t\t\t\timgu0_->output_->queueBuffer(outbuffer);\n+\t\t\t}\n \t\t} else if (stream == &vfStream_) {\n \t\t\thasYuv = true;\n-\t\t\timgu0_->viewfinder_->queueBuffer(outbuffer);\n+\n+\t\t\tfor (int i = 0; i < yuvCount; ++i) {\n+\t\t\t\tbufferReturnCounters[outbuffer] += 1;\n+\t\t\t\timgu0_->viewfinder_->queueBuffer(outbuffer);\n+\t\t\t}\n \t\t} else if (stream == &outCaptureStream_) {\n \t\t\thasCapture = true;\n \n-\t\t\timgu1_->output_->queueBuffer(outbuffer);\n+\t\t\tfor (int i = 0; i < stillCount; ++i) {\n+\t\t\t\tbufferReturnCounters[outbuffer] += 1;\n+\t\t\t\timgu1_->output_->queueBuffer(outbuffer);\n+\t\t\t}\n \t\t}\n \t}\n \n \tif (hasYuv) {\n-\t\tbufferReturnCounters[info->rawBuffer] += 1;\n-\n-\t\timgu0_->param_->queueBuffer(info->paramBuffer);\n-\t\timgu0_->stat_->queueBuffer(info->statBuffer);\n-\t\timgu0_->input_->queueBuffer(info->rawBuffer);\n+\t\tfor (int i = 0; i < yuvCount; ++i) {\n+\t\t\tbufferReturnCounters[info->paramBuffer] += 1;\n+\t\t\tbufferReturnCounters[info->statBuffer] += 1;\n+\t\t\tbufferReturnCounters[info->rawBuffer] += 1;\n+\n+\t\t\timgu0_->param_->queueBuffer(info->paramBuffer);\n+\t\t\timgu0_->stat_->queueBuffer(info->statBuffer);\n+\t\t\timgu0_->input_->queueBuffer(info->rawBuffer);\n+\t\t}\n \t} else {\n \t\tinfo->paramDequeued = true;\n \t\tinfo->metadataProcessed = true;\n \t}\n \n \tif (hasCapture) {\n-\t\tbufferReturnCounters[info->rawBuffer] += 1;\n+\t\tlastRequestSequence_ = info->request->sequence();\n \n-\t\timgu1_->param_->queueBuffer(info->captureParamBuffer);\n-\t\timgu1_->input_->queueBuffer(info->rawBuffer);\n+\t\tfor (int i = 0; i < stillCount; ++i) {\n+\t\t\tbufferReturnCounters[info->captureParamBuffer] += 1;\n+\t\t\tbufferReturnCounters[info->rawBuffer] += 1;\n+\n+\t\t\timgu1_->param_->queueBuffer(info->captureParamBuffer);\n+\t\t\timgu1_->input_->queueBuffer(info->rawBuffer);\n+\t\t}\n \t} else {\n \t\tinfo->captureParamDequeued = true;\n \t}\n@@ -1503,6 +1534,11 @@ void IPU3CameraData::tryReturnBuffer(FrameBuffer *buffer)\n  */\n void IPU3CameraData::imguOutputBufferReady(FrameBuffer *buffer)\n {\n+\tif (--bufferReturnCounters[buffer] > 0)\n+\t\treturn;\n+\n+\tbufferReturnCounters.erase(buffer);\n+\n \tIPU3Frames::Info *info = frameInfos_.find(buffer);\n \tif (!info)\n \t\treturn;\n@@ -1569,6 +1605,11 @@ void IPU3CameraData::cio2BufferReady(FrameBuffer *buffer)\n \n void IPU3CameraData::paramBufferReady(FrameBuffer *buffer)\n {\n+\tif (--bufferReturnCounters[buffer] > 0)\n+\t\treturn;\n+\n+\tbufferReturnCounters.erase(buffer);\n+\n \tIPU3Frames::Info *info = frameInfos_.find(buffer);\n \tif (!info)\n \t\treturn;\n@@ -1589,6 +1630,11 @@ void IPU3CameraData::paramBufferReady(FrameBuffer *buffer)\n \n void IPU3CameraData::captureParamBufferReady(FrameBuffer *buffer)\n {\n+\tif (--bufferReturnCounters[buffer] > 0)\n+\t\treturn;\n+\n+\tbufferReturnCounters.erase(buffer);\n+\n \tIPU3Frames::Info *info = frameInfos_.find(buffer);\n \tif (!info)\n \t\treturn;\n@@ -1609,6 +1655,11 @@ void IPU3CameraData::captureParamBufferReady(FrameBuffer *buffer)\n \n void IPU3CameraData::statBufferReady(FrameBuffer *buffer)\n {\n+\tif (--bufferReturnCounters[buffer] > 0)\n+\t\treturn;\n+\n+\tbufferReturnCounters.erase(buffer);\n+\n \tIPU3Frames::Info *info = frameInfos_.find(buffer);\n \tif (!info)\n \t\treturn;\n",
    "prefixes": [
        "libcamera-devel",
        "v2",
        "9/9"
    ]
}