CVS vs GOP

[rudyb]

What is the difference in terminologies Coded Video Sequence (CVS) vs GOP?
each CVS can be independently decoded from another CVS. And the same statement is also true for Closed-GOP.
So, can we say that CVS is the same thing as Closed-GOP?
Because they are both a set of pictures (starting with a key frame), and they both have a sequence of pictures.
But why do we have two terminology serving the same purpose? I am sure there has to be some differences!
Are there any differences in respect to their non-VLC NAL units (PPS/SPS/VPS), or some other terms?

[foxyshadis]

No. A coded video sequence is a sequence of video for which a single set of PPS/SPS/VPS applies, that's all; a CVS can be a single GOP or a thousand GOPs, as long as all have the same parameters. Coded video sequence typically rolls over when video is spliced.