Chapter 4 discusses the design of video encoder hardware and the interface driver, including Blackfin processor, video input interface, stream output interface and the memory architecture. 第四章讨论了视频采集编码系统的硬件及其接口驱动程序的设计,由Blackfin处理器,视频输入接口,码流输出接口,外部存储器等组成。
Regardless of the various video capturing hardware, the interface can handle multi-channel video ( such as play, pause, capture, clip window ) at the same time and enable the user to use a mouse in the video region and immediately control the video flexibly. 本文设计的接口,不需要考虑视频捕获硬件的差异,可同时处理多路视频(播放、暂停、捕获和视频区域任意切分),并接受用户直接在视频区域的鼠标操作,灵活控制各路视频。
The platform has completed the development of G.726, G.728, as well as a number of video IP. The results show that the hardware interface design of multimedia development platform can meet the multimedia chips design. 多媒体开发平台已经完成G.726、G.728、以及多个视频IP的开发工作,开发结果证明本文所设计的多媒体平台的硬件接口可以满足多媒体芯片设计的需要。
But many development of video display module is closely relative to the on screen display function realized by the hardware of video terminals, and this causes some problems, such as un-uniform interface and low utilization of the display module. 但是对于大多数的视频终端,视频显示模块的开发都是和具体硬件实现的屏幕显示(Onscreendisplay,OSD)功能紧密相关,由此带来开发出的显示模块接口不统一、可重用率低等问题。