Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.

 

Go Back   Doom9's Forum > Video Encoding > New and alternative video codecs

Reply
 
Thread Tools Search this Thread Display Modes
Old 16th June 2021, 07:49   #1  |  Link
PatchWorKs
Registered User
 
PatchWorKs's Avatar
 
Join Date: Aug 2002
Location: Italy
Posts: 303
BBC VC-2: anyone ?

After long time, I recently surfed the BBC R&D website and discovered their new VC-2 Video Compression project.

Does anyone tested/builded/compared it ?

https://github.com/bbc/vc2-reference
PatchWorKs is offline   Reply With Quote
Old 16th June 2021, 10:01   #2  |  Link
SeeMoreDigital
Life's clearer in 4K UHD
 
SeeMoreDigital's Avatar
 
Join Date: Jun 2003
Location: Notts, UK
Posts: 12,219
BBC R&D: https://www.bbc.co.uk/rd/projects/vc-2
Wikipedia: https://en.wikipedia.org/wiki/Dirac_...n_format)#VC-2
__________________
| I've been testing hardware media playback devices and software A/V encoders and decoders since 2001 | My Network Layout & A/V Gear |

Last edited by SeeMoreDigital; 16th June 2021 at 10:05.
SeeMoreDigital is offline   Reply With Quote
Old 16th June 2021, 18:32   #3  |  Link
benwaggoner
Moderator
 
Join Date: Jan 2006
Location: Portland, OR
Posts: 4,752
VC-2 is a I-frame only subset of the Dirac wavelet codec, which never got much market traction. Dirac had no hardware encoders or decoders, nor any production-grade software encoders. It wasn't as good as H.264/x264 as an interframe codec back then. No wavelet-based interframe codec has ever been competitive against block-based codecs of its era, although intraframe-only wavelets have been popular in codecs like Cineform and J2K. I don't recall any indication that VC-2 had any substantive enough advantage over J2K to merit switching to it.

As an I-frame only codec, VC-2's use cases were archives, mezzanines and transport. I'm not aware of any production implementations of VC-2, however, and it's been the better part of a decade since I've heard of any further development of either Dirac or VC-2.

Newer technologies like JPEG XS are superior at addressing J2K and VC-2 for transport. Most mezzanine/archive stuff gets done in ProRes or J2K these days, with some high end using ACES.
__________________
Ben Waggoner
Principal Video Specialist, Amazon Prime Video

My Compression Book
benwaggoner is offline   Reply With Quote
Old 16th June 2021, 20:02   #4  |  Link
Blue_MiSfit
Derek Prestegard IRL
 
Blue_MiSfit's Avatar
 
Join Date: Nov 2003
Location: Los Angeles
Posts: 5,988
From what I understand, Open Broadcast Systems (Kieranrk here on doom9 is their CEO) uses VC-2 in certain cases in production on their live encoding solution for transport.
Blue_MiSfit is offline   Reply With Quote
Reply

Tags
bbc, codec, dirac, open source, video

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 00:49.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.