视频压缩控制系统优化  

Optimization of Video Compression Control System

作　　者：李拓 张贞雷 邹晓峰 刘同强 周玉龙 魏红杨 王贤坤 展永正 LI Tuo;ZHANG Zhenlei;ZOU Xiaofeng;LIU Tongqiang;ZHOU Yulong;WEI Hongyang;WANG Xiankun;ZHAN Yongzheng(State Key Laboratory of High-end Server&Storage Technology,Jinan 250101,China;Shandong Yunhai Guochuang Cloud Computing Equipment Industry Innovation Co.,Ltd.,Jinan 250101,China)

机构地区：[1]高效能服务器和存储技术重点实验室,山东济南250101 [2]山东云海国创云计算装备产业创新中心有限公司,山东济南250101

出　　处：《电视技术》2022年第2期139-145,共7页Video Engineering

基　　金：山东省重大创新工程项目(No.2019TSLH0125)。

摘　　要：针对传统视频压缩控制方案存在的频繁读写数据占用大量系统总线带宽等弊端,对传统视频压缩控制系统进行优化。为了高效地对原始视频进行实时压缩,设计丢帧模块、数据预处理模块等模块;为了减少视频压缩IP核(Intellectual Property core,IP core)对外部双倍速率同步动态随机存储器(Double Data Rate SDRAM,DDR)的访问,降低总线带宽,设计了BLOCK转换模块。同时,设计了动态+静态的组合丢帧机制,增强了对不同DDR容量的适配性,提高整体系统性能。In view of the disadvantages of the traditional video compression control scheme, such as frequent reading and writing of data and occupying a large amount of system bus bandwidth,this paper optimize the traditional video compression control system. To efficiently compress the original video in real time, frame dropping module, data preprocessing module, etc. are designed. In order to reduce the access of video compression IP core(Intellectual Property core) to external DDR(Double Data Rate SDRAM) and reduce the bus bandwidth, the BLOCK conversion module is designed. At the same time, a dynamic + static combined frame loss mechanism is designed to enhance the adaptability to different DDR capacities and improve the overall system performance.

关 键 词：视频压缩 丢帧机制 数据预处理 总线带宽 

分 类 号：TP311.1[自动化与计算机技术—计算机软件与理论]