说明： DXVA 规范
DXVA 是微软为DVD/Video硬件加速而提供的API, 用于显卡的驱动设计，此规范详细，对于显卡驱动设计人员以及DVD播放器应用程序设计人员有很大帮助 (theater is theater norms Microsoft DVD/Video and the hardware acceleration provided by the API, the drive for graphics design, this specification detailed graphics driver for the design and DVD player application programming staff is very helpful)
