Re: [codec] requirements #29 (closed): Packet loss concealment?
"codec issue tracker" <trac@tools.ietf.org> Mon, 24 January 2011 23:34 UTC
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Subject: Re: [codec] requirements #29 (closed): Packet loss concealment?
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#29: Packet loss concealment? Changes (by gmaxwell@…): * status: new => closed * resolution: => fixed Comment: This is addressed in the guidelines: http://tools.ietf.org/html/draft-valin-codec-guidelines-08 4.5: "To ensure freedom of implementation, decoder-side only error concealment does not need to be specified, although the reference implementation should include the same PLC algorithm as used in the testing phase. Is it up to the working group to decide whether minimum requirements on PLC quality will be required for compliance with the specification. Obviously, any information signaled in the bitstream intended to aid PLC needs to be specified." I don't believe the working group has expressed interest in PLC performance, and I know that there is at least some opposition to requiring specific that implementers provide a particular PLC or PLC performance (e.g. I'd be opposed to requiring a particular kind of PLC). As such, Jean-Marc is adding the following parallel language to section 3 of the requirements document: "To ensure freedom of implementation, decoder-side only error concealment does not need to be specified, although a functional PLC algorithm is desirable as part of the codec reference implementation. Obviously, any information signaled in the bitstream intended to aid PLC needs to be specified." (Available at http://jmvalin.ca/misc_stuff/draft-ietf-codec- requirements.txt) -- ------------------------------------+--------------------------------------- Reporter: hoene@… | Owner: Type: defect | Status: closed Priority: major | Milestone: Component: requirements | Version: Severity: - | Resolution: fixed Keywords: | ------------------------------------+--------------------------------------- Ticket URL: <http://trac.tools.ietf.org/wg/codec/trac/ticket/29#comment:2> codec <http://tools.ietf.org/codec/>
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