xvc - a next-generation video codec at xvc.io

[benwaggoner]

Looks like XVC moved to x265 as --hevc-aq.
Huh? Where did you get that?

I thought that VVC picked up some xvc features and contributions.

[LigH]

Now that would be some remarkable inheritance. https://cosgan.de/images/smilie/froehlich/a020.gif

[benwaggoner]

Now that would be some remarkable inheritance. https://cosgan.de/images/smilie/froehlich/a020.gif
In fact jonatans told me about how VVC got a some good xvc features at IBC last year. The specifics have faded with time, alas.

[jonatans]

Looks like XVC moved to x265 as --hevc-aq.

I don't know anything about this. I don't think there is any relation between xvc and --hevc-aq in x265.

In fact jonatans told me about how VVC got a some good xvc features at IBC last year. The specifics have faded with time, alas.

Thanks Ben. Yes, in VVC there is the concept of "general constraint info" which makes it possible to indicate at the top level if some coding tools and features are disabled in the bitstream. This concept is inspired by the "restriction flags" in xvc which serves exactly the same purpose.

In EVC there are actually more features directly brought in from xvc such as a mode for determining the output order of pictures (Picture Order Count derivation) and a mode for implicit derivation of which reference picture to use for inter prediction.

/ Jonatan