摘要
目前我们处在一个视频大爆炸时代,各种新兴视频技术如雨后春笋般出现,形成多种视频接口标准共存的局面,因此视频接口的兼容性成为一个突出问题。本文提出一种基于STM32,结合高速视频处理芯片对HDMI接口的4K视频流实时转LVDS接口的方案,并选用不同格式的码流进行测试验证。经过测试,该方案能实现音视频数据流的分离输出,同时支持音视频参数变换,达到预期设计要求,为超高清数字电视的推广推波助澜。
At present,we are in the era of a big video explosion,and various emerging video technologies have sprung up,forming a situation in which multiple video interface standards coexist.Therefore,the compatibility of video interfaces has become a prominent problem.This paper proposes a scheme based on STM32,combined with high-speed video processing chip to HDMI interface 4K video stream real-time LVDS interface,and selects the code stream of different formats for test verification.After testing,the scheme can realize the separate output of audio and video data streams,and at the same time support audio and video parameter conversion to meet the expected design requirements,which will contribute to the promotion of ultra-high definition digital TV.
作者
张林铮
叶宇煌
黄荣铭
Zhang Linzheng;Ye Yuhuang;Huang Rongming(College of Physics and Information Engineering,Fuzhou University,Fuzhou 350108)
出处
《电气技术》
2019年第8期33-37,共5页
Electrical Engineering
