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{
    "id": 14177,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/14177/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/14177/",
    "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": "<20211019114802.665980-4-umang.jain@ideasonboard.com>",
    "date": "2021-10-19T11:47:53",
    "name": "[libcamera-devel,v2,03/12] android: camera_device: Build capture_result dynamically",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": false,
    "hash": "62b13da331532a0e0b79087d6709ebdb069bca12",
    "submitter": {
        "id": 86,
        "url": "https://patchwork.libcamera.org/api/1.1/people/86/?format=api",
        "name": "Umang Jain",
        "email": "umang.jain@ideasonboard.com"
    },
    "delegate": {
        "id": 12,
        "url": "https://patchwork.libcamera.org/api/1.1/users/12/?format=api",
        "username": "uajain",
        "first_name": "Umang",
        "last_name": "Jain",
        "email": "umang.jain@ideasonboard.com"
    },
    "mbox": "https://patchwork.libcamera.org/patch/14177/mbox/",
    "series": [
        {
            "id": 2638,
            "url": "https://patchwork.libcamera.org/api/1.1/series/2638/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=2638",
            "date": "2021-10-19T11:47:50",
            "name": "android: Overhaul request handling",
            "version": 2,
            "mbox": "https://patchwork.libcamera.org/series/2638/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/14177/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/14177/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
        "X-Original-To": "parsemail@patchwork.libcamera.org",
        "Delivered-To": "parsemail@patchwork.libcamera.org",
        "Received": [
            "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 8C068C324C\n\tfor <parsemail@patchwork.libcamera.org>;\n\tTue, 19 Oct 2021 11:48:18 +0000 (UTC)",
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            "from perceval.ideasonboard.com (unknown [103.251.226.98])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 8C62512A;\n\tTue, 19 Oct 2021 13:48:15 +0200 (CEST)"
        ],
        "Authentication-Results": "lancelot.ideasonboard.com;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"WGnhijJl\"; dkim-atps=neutral",
        "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1634644096;\n\tbh=Vp6FzJ/7bMKJw0R1OjL1B4UrtnKEU8LtDGCwe5lZ70o=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=WGnhijJlwu50d8RI4Qih3NeXD24eYMMtOVXGIuOHClrSWY6FO+hWivR5i+6t5tWv5\n\tSufaBmiV9V3V6V/6X8pA99iviYTVz/vTd4q7YTMTYacD8CMOO+ifo0ou3T5f8Vd9KR\n\tsjqg31rJnUTn9BW7pBxAwSDp2F8EHzq/b68DXCms=",
        "From": "Umang Jain <umang.jain@ideasonboard.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Tue, 19 Oct 2021 17:17:53 +0530",
        "Message-Id": "<20211019114802.665980-4-umang.jain@ideasonboard.com>",
        "X-Mailer": "git-send-email 2.31.1",
        "In-Reply-To": "<20211019114802.665980-1-umang.jain@ideasonboard.com>",
        "References": "<20211019114802.665980-1-umang.jain@ideasonboard.com>",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [PATCH v2 03/12] android: camera_device: Build\n\tcapture_result dynamically",
        "X-BeenThere": "libcamera-devel@lists.libcamera.org",
        "X-Mailman-Version": "2.1.29",
        "Precedence": "list",
        "List-Id": "<libcamera-devel.lists.libcamera.org>",
        "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>",
        "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>",
        "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>",
        "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>",
        "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\n\nThe camera3_capture_result_t is only needed to convey capture results to\nthe camera service through the process_capture_result() callback.\nThere's no need to store it in the Camera3RequestDescriptor. Build it\ndynamically in CameraDevice::sendCaptureResults() instead.\n\nThis requires storing the result metadata created in\nCameraDevice::requestComplete() in the Camera3RequestDescriptor. A side\neffect of this change is that the request metadata lifetime will match\nthe Camera3RequestDescriptor instead of being destroyed at the end of\nrequestComplete(). This will be needed to support asynchronous\npost-processing, where the request completion will be signaled to the\ncamera service asynchronously from requestComplete().\n\nSigned-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\nSigned-off-by: Umang Jain <umang.jain@ideasonboard.com>\nReviewed-by: Hirokazu Honda <hiroh@chromium.org>\n---\n src/android/camera_device.cpp | 50 ++++++++++++++++++-----------------\n src/android/camera_request.h  |  2 +-\n 2 files changed, 27 insertions(+), 25 deletions(-)",
    "diff": "diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp\nindex 3689940d..38132cbd 100644\n--- a/src/android/camera_device.cpp\n+++ b/src/android/camera_device.cpp\n@@ -801,19 +801,11 @@ void CameraDevice::abortRequest(Camera3RequestDescriptor *descriptor) const\n {\n \tnotifyError(descriptor->frameNumber_, nullptr, CAMERA3_MSG_ERROR_REQUEST);\n \n-\tcamera3_capture_result_t &result = descriptor->captureResult_;\n-\tresult.num_output_buffers = descriptor->buffers_.size();\n-\tresult.frame_number = descriptor->frameNumber_;\n-\tresult.partial_result = 0;\n-\n-\tstd::vector<camera3_stream_buffer_t> resultBuffers(result.num_output_buffers);\n-\tfor (auto [i, buffer] : utils::enumerate(resultBuffers)) {\n-\t\tbuffer = descriptor->buffers_[i];\n-\t\tbuffer.release_fence = descriptor->buffers_[i].acquire_fence;\n+\tfor (auto &buffer : descriptor->buffers_) {\n+\t\tbuffer.release_fence = buffer.acquire_fence;\n \t\tbuffer.acquire_fence = -1;\n \t\tbuffer.status = CAMERA3_BUFFER_STATUS_ERROR;\n \t}\n-\tresult.output_buffers = resultBuffers.data();\n \n \tdescriptor->status_ = Camera3RequestDescriptor::Status::Error;\n }\n@@ -1062,9 +1054,6 @@ void CameraDevice::requestComplete(Request *request)\n \t * The buffer status is set to OK and later changed to ERROR if\n \t * post-processing/compression fails.\n \t */\n-\tcamera3_capture_result_t &captureResult = descriptor->captureResult_;\n-\tcaptureResult.frame_number = descriptor->frameNumber_;\n-\tcaptureResult.num_output_buffers = descriptor->buffers_.size();\n \tfor (camera3_stream_buffer_t &buffer : descriptor->buffers_) {\n \t\tCameraStream *cameraStream =\n \t\t\tstatic_cast<CameraStream *>(buffer.stream->priv);\n@@ -1085,8 +1074,6 @@ void CameraDevice::requestComplete(Request *request)\n \t\tbuffer.release_fence = -1;\n \t\tbuffer.status = CAMERA3_BUFFER_STATUS_OK;\n \t}\n-\tcaptureResult.output_buffers = descriptor->buffers_.data();\n-\tcaptureResult.partial_result = 1;\n \n \t/*\n \t * If the Request has failed, abort the request by notifying the error\n@@ -1100,7 +1087,6 @@ void CameraDevice::requestComplete(Request *request)\n \t\tnotifyError(descriptor->frameNumber_, nullptr,\n \t\t\t    CAMERA3_MSG_ERROR_REQUEST);\n \n-\t\tcaptureResult.partial_result = 0;\n \t\tfor (camera3_stream_buffer_t &buffer : descriptor->buffers_) {\n \t\t\t/*\n \t\t\t * Signal to the framework it has to handle fences that\n@@ -1137,12 +1123,17 @@ void CameraDevice::requestComplete(Request *request)\n \t * Notify if the metadata generation has failed, but continue processing\n \t * buffers and return an empty metadata pack.\n \t */\n-\tstd::unique_ptr<CameraMetadata> resultMetadata = getResultMetadata(*descriptor);\n-\tif (!resultMetadata) {\n+\tdescriptor->resultMetadata_ = getResultMetadata(*descriptor);\n+\tif (!descriptor->resultMetadata_) {\n \t\tnotifyError(descriptor->frameNumber_, nullptr, CAMERA3_MSG_ERROR_RESULT);\n \n-\t\t/* The camera framework expects an empty metadata pack on error. */\n-\t\tresultMetadata = std::make_unique<CameraMetadata>(0, 0);\n+\t\t/*\n+\t\t * The camera framework expects an empty metadata pack on error.\n+\t\t *\n+\t\t * \\todo Check that the post-processor code handles this situation\n+\t\t * correctly.\n+\t\t */\n+\t\tdescriptor->resultMetadata_ = std::make_unique<CameraMetadata>(0, 0);\n \t}\n \n \t/* Handle post-processing. */\n@@ -1164,7 +1155,7 @@ void CameraDevice::requestComplete(Request *request)\n \n \t\tint ret = cameraStream->process(*src, buffer,\n \t\t\t\t\t\tdescriptor->settings_,\n-\t\t\t\t\t\tresultMetadata.get());\n+\t\t\t\t\t\tdescriptor->resultMetadata_.get());\n \t\t/*\n \t\t * Return the FrameBuffer to the CameraStream now that we're\n \t\t * done processing it.\n@@ -1179,7 +1170,6 @@ void CameraDevice::requestComplete(Request *request)\n \t\t}\n \t}\n \n-\tcaptureResult.result = resultMetadata->get();\n \tdescriptor->status_ = Camera3RequestDescriptor::Status::Success;\n \tsendCaptureResults();\n }\n@@ -1197,8 +1187,20 @@ void CameraDevice::sendCaptureResults()\n \t\t * impact on performance which should be measured.\n \t\t */\n \t\tlock.unlock();\n-\t\tcallbacks_->process_capture_result(callbacks_,\n-\t\t\t\t\t\t   &descriptor->captureResult_);\n+\n+\t\tcamera3_capture_result_t captureResult = {};\n+\n+\t\tcaptureResult.frame_number = descriptor->frameNumber_;\n+\t\tif (descriptor->resultMetadata_)\n+\t\t\tcaptureResult.result = descriptor->resultMetadata_->get();\n+\t\tcaptureResult.num_output_buffers = descriptor->buffers_.size();\n+\t\tcaptureResult.output_buffers = descriptor->buffers_.data();\n+\n+\t\tif (descriptor->status_ == Camera3RequestDescriptor::Status::Success)\n+\t\t\tcaptureResult.partial_result = 1;\n+\n+\t\tcallbacks_->process_capture_result(callbacks_, &captureResult);\n+\n \t\tlock.lock();\n \t}\n }\ndiff --git a/src/android/camera_request.h b/src/android/camera_request.h\nindex 79dfdb58..db13f624 100644\n--- a/src/android/camera_request.h\n+++ b/src/android/camera_request.h\n@@ -40,8 +40,8 @@ public:\n \tstd::vector<std::unique_ptr<libcamera::FrameBuffer>> frameBuffers_;\n \tCameraMetadata settings_;\n \tstd::unique_ptr<CaptureRequest> request_;\n+\tstd::unique_ptr<CameraMetadata> resultMetadata_;\n \n-\tcamera3_capture_result_t captureResult_ = {};\n \tStatus status_ = Status::Pending;\n \n private:\n",
    "prefixes": [
        "libcamera-devel",
        "v2",
        "03/12"
    ]
}