超极本和平板电脑 Windows* 8 传感器开发指南

本指南为开发人员提供了面向 Desktop和Windows* 8商店应用的 Microsoft Windows* 8 传感器应用编程接口 (API) 的概述并重点介绍了 Windows 8 Desktop 模式中可用的传感器功能。 我们对可以创建交互应用的 API 进行了总结,包括采用Windows 8 的加速器、磁力计和陀螺仪等常见传感器。
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  • Pure virtual functional call

    Hi. We are using QSV h.264 decoder in our product to decode several streams simultaneously (in joined sessions).

    At some point, message box pops up which says "R6025 - pure virtual functional call" when inside MFXVideoDECODE_DecodeFrameAsync call.

    This happens with libmfxhw64.dll file version Is this a known issue and how it can be avoided?

    Record the depth image


    Now I try to record the depth image by UtilPipeline, and I enable the capture by :


    So I get a video of depth image which lasts about 20 seconds, 30fps. It takes about 607MB. Furthermore, I want to remove the UV map of the depth image so that the memory will be smaller. As a consequence, I change the code to:

    Quicksync doesn't work in 64-bit on some computers (Windows N + HD 3000)

    Hi. We find that QuickSync does not work in 64-bit on computer with Windows N and Intel HD 3000 graphics card. We investigated this issue and find following.

    1. 32-bit and 64-bit hardware dlls present and located in same folder.

    2. Quicksync works in 32-bit application but in 64-bit application it does not work.

    3. MFXInit function call fails in 64-bit with MFX_ERR_UNSUPPORTED error code, I tried also automatic detection.

    Analyzer tool logs for 32-bit and 64-bit attached.

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