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Re: [video-codec] Comments on draft-maxwell-videocodec-requirements-00

"Ali C. Begen (abegen)" <abegen@cisco.com> Tue, 04 December 2012 23:34 UTC

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From: "Ali C. Begen (abegen)" <abegen@cisco.com>
To: "Timothy B. Terriberry" <tterribe@xiph.org>, "video-codec@ietf.org" <video-codec@ietf.org>
Thread-Topic: [video-codec] Comments on draft-maxwell-videocodec-requirements-00
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Date: Tue, 04 Dec 2012 23:34:06 +0000
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Subject: Re: [video-codec] Comments on draft-maxwell-videocodec-requirements-00
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-----Original Message-----
From: "Timothy B. Terriberry" <tterribe@xiph.org>
Date: Tuesday, December 4, 2012 6:28 PM
To: "video-codec@ietf.org" <video-codec@ietf.org>
Subject: Re: [video-codec] Comments
on	draft-maxwell-videocodec-requirements-00

>This is something I hope rmcat will explore in more detail, though I
>recognize it's hard to evaluate. One idea that occurs to me is actually
>using VBR video and padding it with FEC data to get something closer to
>CBR. That might actually be a better use of the bits.

I doubt it. If a frame (or slide) has less bits due to VBR encoding, that
means it is easier to encode it, which implies it is less important than
the one that has more bits. FEC'ing these frames will not make the stream
CBR.

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