[opendtv] H.264 Terminology
- From: "Stephen W. Long" <longsw@xxxxxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx, opendtv@xxxxxxxxxxxxx
- Date: Wed, 18 May 2005 15:24:25 -0400
For several of the reasons cited by Craig, the DoD uses the term H.264, and
will not use MPEG-4 Part 10. H.264 is now officially part of the DoD and
NATO standards for motion imagery. NATO approved this (via STANAG 4609)
several weeks ago.
At 10:56 PM 5/17/2005 -0400, Craig Birkmaier wrote:
>At 10:04 PM -0400 5/17/05, Gary Hughes wrote:
>>I've never seen any other claim that VC1 was twice as efficient as
>>AVC. Maybe you could make that claim against MPEG-4 part 2 video
>>(I'm beginning to wish AVC was MPEG-something-other-than-4), but
>>I'd be sceptical about that too.
>
>I just finished my NAB feature on video compression for BE today. I
>used H.264 consistently throughout, despite the fact that more than
>25 companies came together at NAB under the AVC banner. Some
>companies are trying to avoid the legacy of MPEG-4 while others
>continue to promote some of the really useful MPEG-4 tools running
>atop the new Part 10 codec. Envivio had some very well done demos in
>their booth at NAB.
>
>It's going to wind up being either AVC or H.264 - MPEG-4 Part 10 is
>too many characters for jargonese. Apple and the ISMA are going with
>H.264 - these are the folks that will have millions of deployed
>decoders within a few weeks, albeit on niche platforms like the Mac,
>Solaris, Unix etc.
>>
>>As to why there are few if any live deployments of VC1 or AVC in
>>telcos... no one is shipping set tops in quantity yet and current
>>unit prices are on the high side. The cable world is not hurting
>>for bandwidth enough to make the transition; the telco guys will
>>likely make the leap first (although they are also facing sticker
>>shock for set tops and real time encoders).
>>
>
>DirecTV is likely to be the first large scale deployment outside the
>world of the PC. Echostar will not be far behind.
>
>One thing to consider: don't underestimate the impact of H.264 on the
>PVR market. Witha 50% bit rate saving benefit it won't take long for
>H.264 to find its way into the PVR - it may take a bit longer for
>native H.264 streams to be available for caching, but every new
>stream for a cable or DBS company represents additional revenue via
>NVOD, VOD or more room for broadband.
>
>Broadcasters are likely to jump on the H.264 bandwagon quickly for
>back haul applications...
>for NTSC.
>
>Regards
>Craig
>
>Regards
>Craig
>
>
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