Scalable and Simulcast Video (SSV) AG
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October 22, 2011 Scalable and Simulcast Video (SSV) AG Alex Eleftheriadis, Ph.D. Chief Scientist - Vidyo, Inc.
Transcript of Scalable and Simulcast Video (SSV) AG
October 22, 2011
Scalable and
Simulcast Video (SSV) AG
Alex Eleftheriadis, Ph.D.
Chief Scientist - Vidyo, Inc.
• SSV AG approved by Board on May 20, 2014
– Merged IMTC SVC & UCIF Video groups
– First meeting, and new name, in July 2014
• Co-chairs:
– Alex Eleftheriadis (Vidyo)
– Jesus Sampedro (Polycom)
– Gal Eliraz-Levonai (Avaya/Radvision)
• Web page: www.imtc.org/ssv-activity-group/
SSV AG
• What We Do
– The AG focuses on improving the interoperability of
video communication systems that use scalable video
coding, including simulcast, through open standards.
• Scalability in Video Codecs
– H.264 SVC
– VP8
– HEVC (a.k.a. H.265) – finished Jan 2014
– SHVC (a.k.a. H.265 v.2) – finished Jul 2014
– VP9
– Scalable VP9 – developed by Vidyo & Google
Industry Developments
• Scalability in Video Codecs
• Simulcast
– Lync 2013 (H.264 SVC), among others
– WebRTC (VP8) on Chrome
Industry Developments
• Scalability in Video Codecs
• Simulcast
• SFUs – Selective Forwarding Units (new term)
– VidyoRouter
– Lync 2013
– Jitsi Videobridge
– …
Industry Developments
• SSV AG Objectives
– Address interoperability of systems that use scalable
coding, at the bitstream and transport levels.
– Development of requirements, test cases, system
• Proposal for UC Profiles for H.264 to ITU-T and
ISO [finished]
– submitted in November 21, 2011
– consented in January 2012
New profiles in H.264:
– Constrained High
– Scalable Constrained Baseline
– Scalable Constrained High
Work Items
• H.264/MPEG-4 Part 10 AVC and SVC Modes
Version 1.0 Specification [finished] • published December 21, 2012
• Mode 1 interop successfully tested in IMTC SuperOp 2013
(minus profile indication)
Work Items
• H.264/MPEG-4 Part 10 SVC RTP Transport
Version 1.0 [finished] • published June 12, 2014
Work Items
• H.265 HEVC Bitstream Specification [active] • Will include SHVC (July 2014) in first release
• Scheduled for end of 2014
• Will include pre-cert command line compliance tool by HCL
• H.265 HEVC Transport Specification [future] • Coordinate with ongoing work in the IETF (HEVC payload
format for RTP, ver. 6, 2014/08/13)
• Completion in Q1/2015 for HEVC
• TBD for SHVC (no I-D yet)
• H.265 Test Plan for SuperOp 2015 [future]
• UC-mode parameter [active] • definition of SDP-level parameter to indicate selected
bitstream mode
Work Items
• Mailing list:
• Video meetings every two weeks at 12 noon
Eastern (synced on 9/17/2014) using Vidyo’s
system:
http://bit.ly/IMTCatVidyo
http://www.imtc.org/ssv-activity-group
