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The SVC design team had a conference call on March 25th. The first objective of the design team is to get consensus
on the decoding order recovery solution. Roni mentioned that if there will be
no agreement the WG chairs will draft a proposal and send it to the AVT list
trying to see if there if consensus can be agreed on the list and if no
consensus we may need to sue RFC 3929 procedures. Roni Noted that there are three IPR statements concerning
this draft from LMI (Vidyo), Nokia and BT The meeting started with a presentation on the
"decoding order recovery" prepared by Ye-kui (thanks). The
presentation describes the two optional solutions: "Classical" RTP
and CL-DON. The presentation suggested two options to combine the two
methods: •
Combination of the
two existing solutions for the non-interleaved packetization mode –
Comb#1: Receivers
are required to support the 1st solution even PACSI NAL units carrying CS-DON
information are present, meaning that insertion of video NAL units to avoid
type I non-AU-aligned NAL units in sent NAL unit stream is always needed, though
that is not needed by the 2nd solution. –
Comb#2: An
alternative is to mandate both inclusion of PACSI NAL units carrying CS-DON
information and insertion of video NAL units to avoid type I non-AU-aligned NAL
units in sent NAL unit stream, such that the receiver can freely choose which
solution to use. Stephan also pointed out that such non-assert terms will be
less restrictive then the LMI one. Thomas Wiegand said that this is a good direction and asked
for time to get feedback. Alex mentioned that Vidyo will review their statement. The group mentioned that there is still the BT IPR
declaration that does not have the non-assert term and asked if BT can
reconsider its IPR statement based on the good faith shown by the other
parties. (There was no BT member in the meeting) The summary is that the parties will look at a possibility
to adopt Comb#2 based on Stephan's statement and will try to give the response
to the next meeting of the design team The editors of the draft should continue with the text
addressing the other open issues in order to expedite the work. There is also a need to expand the text explaining the decoding
order procedures. The next meeting is on April 8th Time: 7:00 PST ( Dial in number: +1-678-7955235 Regards |
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