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Re: [codec] WGLC #2 for draft-ietf-codec-opus-10

Jean-Marc Valin <jmvalin@mozilla.com> Thu, 17 November 2011 09:56 UTC

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Date: Thu, 17 Nov 2011 17:57:19 +0800
From: Jean-Marc Valin <jmvalin@mozilla.com>
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To: Christian Hoene <hoene@uni-tuebingen.de>
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Subject: Re: [codec] WGLC #2 for draft-ietf-codec-opus-10
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On 17/11/11 05:32 PM, Christian Hoene wrote:
> If you can be charged for every bug in your Opus implementation that limits
> interoperability, then using Opus will become more expensive as there might
> be a risk that you have to pay royalties. Insuring this risk is costly.

Please keep in mind that the conformance test is restricted to test
vectors, so there is no risk. Either you pass or you fail and you know
that very early on. If it turns out that your decoder fails to correctly
decode something other than the test vectors, then you're still
"compliant" and the IPR licenses still apply. So regardless of how wide
or narrow the compliance test is, there will not be any uncertainty
because it will always only apply to the test vectors.

That being said, Koen and I are working on the actual test and we should
soon have something that is worth showing.

	Jean-Marc

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