基于DM642RAW采集格式的视频驱动开发及应用

摘要

To solve the problem that video driver for C64X Digital Signal Processor ( DSP) family can not be used in RAW capture mode, the authors designed a data interface between DM642 and the high definition sensor of Charge-Coupled Device (CCD) , and analyzed and modified the video driver of standard format. After being optimized, the video driver could be used in RAW capture mode. Applications had been developed based on multilevel buffer management framework. At last, the capture speed achieves the minimum speed of 15 frame per second.%为解决C64X系列数字信号处理器(DSP)视频驱动不能应用于原始数据格式(RAW)采集格式的问题,设计了DM642和电耦合元件(CCD)高清传感器的数据传输接口,并分析、修改用于标准格式的视频驱动,使其优化后适用于RAW采集格式,在此基础上开发了基于多级缓存管理机制的应用程序,最终达到采集速率至少每秒15帧的要求.