本标准定义了4:4:4和4:2:2颜色空间的数字视频编码，以及525/625行隔行扫描系统的虚拟并行接口。定义了两种luma采样率:13.5 MHz和18 MHz。SMPTE ST 259中定义的10位串行接口的源需要虚拟并行信号接口格式。附件D涵盖了家庭中4:4:4:4成员的视频编码，包括双通道的多路复用细节？活动

This standard defines the digital video coding for 4:4:4 and 4:2:2 color spaces and a virtual parallel interface for 525/625-line interlaced systems. Two luma sampling rates are defined: 13.5 MHz and 18 MHz. The virtual parallel signal interface format is required as the source for the 10 bit serial interface defined in SMPTE ST 259.Annex D covers video coding for the 4:4:4:4 member of the family, including multiplexing details for -dual channel? operation.