丁类音频功率放大器的工作方式。同时利用PWM信号控制导通时间以放大信号。这个主要是性能研究开发 没有硬件-Class D audio power amplifier work. At the same time, the use of PWM signal to control turn-on time to signal amplification. The performance of the main research and development are not the hardware
视频抓帧,实现在一个能播放的视频里面连续的获取帧或者随即获取。并能对帧进行处理-Video grasp frame to achieve in a row can play video inside or immediately obtain access to the frame. And can deal with the frame