Question

我对Kinect 2.0 SDK有问题：无法复制样本就无法捕获样本数据。

问题在于， AcquireLatestFrame 不会给我新的示例，除非我发布 IColorFrame 的 Microsoft :: WRL :: ComPtr 。

所有教程使用相同的副本：

然后出现问题：我该如何入侵 Microsoft :: WRL :: ComPtr ，并在不复制的情况下拦截数据？

SDKFetchSamplesWork.h

    #pragma once
    #include <memory>

    #include <Windows.h>
    #include <Kinect.h>
    #include <wrl/client.h>

    namespace kinect2
    {
        class ColorFrame
        {
            public:
                static constexpr int WIDTH  = 1920;
                static constexpr int HEIGHT = 1080;

            public:
                unsigned short texels_yuy2[WIDTH * HEIGHT];
        };

        class SDKFetchSamplesWork
        {
            public:
                SDKFetchSamplesWork();

                void TryFetchSample();

            public:
                std::shared_ptr<const ColorFrame> fetched_color_frame;

            private:
                Microsoft::WRL::ComPtr<IKinectSensor>     _kinect_sensor;
                Microsoft::WRL::ComPtr<IColorFrameReader> _color_frame_reader;
        };
    }

SDKFetchSamplesWork.cpp

    #include "Kinect2/sdk_fetch_samples_work.h"

    namespace kinect2
    {
        SDKFetchSamplesWork::SDKFetchSamplesWork()
            :
            fetched_color_frame(nullptr)
        {
            GetDefaultKinectSensor(&_kinect_sensor);
            _kinect_sensor->Open();

            Microsoft::WRL::ComPtr<IColorFrameSource> color_frame_source;

            _kinect_sensor->get_ColorFrameSource(&color_frame_source);
            _color_frame_source->OpenReader(&_color_frame_reader);
        }

        void SDKFetchSamplesWork::TryFetchSample()
        {
            if (!_color_frame_reader || fetched_color_frame) return;

            Microsoft::WRL::ComPtr<IColorFrame> sdk_color_frame;
            const HRESULT ret = _color_frame_reader->AcquireLatestFrame(&sdk_color_frame);

            if (FAILED(ret)) return;

            auto new_color_frame = std::make_shared<ColorFrame>();

            sdk_color_frame->CopyRawFrameDataToArray(
                sizeof(UINT16) * ColorFrame::WIDTH * ColorFrame::HEIGHT, 
                (BYTE*)(new_color_frame->texels_yuy2)
            );

            fetched_color_frame = new_color_frame;
        }
    }

如何拦截来自Microsoft :: WRL :: ComPtr的数据？

0 个答案: