The difference between 265 and 266 quantization

hanyi · 4th June 2021, 08:24

As the title,what's the difference between HEVC and VVC quantization?
How VVC does scalar quantization?
How trellis-coded quantization works in VVC?

RanmaCanada · 5th June 2021, 00:15

We literally don't know. VVC is so in it's infancy that there is no measure for it.

benwaggoner · 5th June 2021, 01:08

These questions better for the VVC thread, or a new topic in that forum: https://forum.doom9.org/showthread.php?t=174940
Offhand I'm not aware of anything fundamentally different about quantization in VVC from HEVC, which was itself very similar to H.264 in having a logarithmic QP where every six steps would reduce the actual quantizer by half.

I'd consult the VVC spec if there are specific details you need beyond that.

4th June 2021, 08:24	#1 \| Link
hanyi Registered User Join Date: May 2021 Posts: 4	The difference between 265 and 266 quantization As the title,what's the difference between HEVC and VVC quantization? How VVC does scalar quantization? How trellis-coded quantization works in VVC?

5th June 2021, 01:08	#3 \| Link
benwaggoner Moderator Join Date: Jan 2006 Location: Portland, OR Posts: 4,770	These questions better for the VVC thread, or a new topic in that forum: https://forum.doom9.org/showthread.php?t=174940 Offhand I'm not aware of anything fundamentally different about quantization in VVC from HEVC, which was itself very similar to H.264 in having a logarithmic QP where every six steps would reduce the actual quantizer by half. I'd consult the VVC spec if there are specific details you need beyond that. __________________ Ben Waggoner Principal Video Specialist, Amazon Prime Video My Compression Book

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5th June 2021, 00:15	#2 \| Link
RanmaCanada Registered User Join Date: May 2009 Posts: 331	We literally don't know. VVC is so in it's infancy that there is no measure for it.