嵌入式数字视频监控系统中的媒体存储研究  

Research on Medium Storage of Embedded Digital Video Surveillance System

作　　者：欧阳甸[1] 

机构地区：[1]公安部第一研究所信息技术事业部,北京100048

出　　处：《电视技术》2014年第1期156-159,共4页Video Engineering

基　　金："十二五"国家科技支撑计划资助项目(2012BAH21B02)

摘　　要：基于目前较流行的嵌入式数字视频监控系统,提出了一种媒体存储的策略。该策略通过设计双缓冲媒体流算法、设计硬盘预分配空间和连续文件存储、多路存储轮转式调度算法以及媒体信息索引等,在较高的媒体编码数据量下,实现了不丢帧的稳定存储,并能快速而准确地检索,清晰流畅地回放历史视频。在长时间的测试中验证了该存储策略的实用性和可靠性。A strategy of medium storage is mentioned based on embedded digital video surveillance system. Double-buffered data algorithm,hard disk space pre-assigned and continuous files storage strategy ,multiplex storage circled scheduling algorithm and medium information index are designed. So that the storage is stable. Videos are searched accurately and fast, and historical videos are played distinctly and fluently in high code bitrate. Practica- bility and stability of this storage strategy are testified by long time experience.

关 键 词：媒体存储 数字视频 嵌入式 硬盘 

分 类 号：TN946[电子电信—信号与信息处理]