超低延时4K超高清编解码延时的测试实践

Ultra-low Delay 4K UHD Codec Testing

为解决超低延时4K超高清编解码延时的精准测量问题,本文在研究4K超高清编解码延时测试的基础上,针对传统叠加时间码的方式进行了改进,独立制作了一组新的测试序列,以确定所测设备为帧内延时,之后通过行和场的偏移量,精确计算出超低延时(毫秒级)4K超高清编解码的延时量。

In order to solve the problem of delay in the precise measurement of ultra-low delay 4K UHD codec,this paper improves the traditional method of stack timecode based on the study of 4K UHD codec delay test.The new method independently creates a group of new test sequence to determine whether the measured device is intra delay.Then it accurately calculates the delay of the ultra-low delay 4K UHD codec(in millisecond),utilizing the offset in lines and fields.