基于嵌入式VxWorks的视频数据循环记录算法  

Video Data Circulative Record Algorithm Based on Embedded VxWorks OS

作　　者：葛晓菁[1] 

机构地区：[1]中国航空无线电电子研究所,上海200233

出　　处：《电视技术》2015年第21期111-113,共3页Video Engineering

摘　　要：介绍了基于VxWorks嵌入式操作系统的某型机载数字视频记录仪中使用的循环记录算法,并对其中需要完成的任务和关键技术进行了详细的描述,该算法运算速度快且不会影响视频数据的实时采集和存储操作,从而实现了机载设备对存储卡的有效管理。An algorithm of video data circulative record used in the airborne digital video recorders is presented based on the embedded vxworks OS. The key technologies and the tasks to be finished are also described in detail in this paper. This algorithm has no influence on the video capture and store operation but with the fast operation speed, then implements an effective management of the storage card in the airborne equipments.

关 键 词：数字视频 编码数据 存储管理 索引文件 

分 类 号：TN919.8[电子电信—通信与信息系统]