[mythtv-users] XvMC, Plextor Question, and Sound

[Nathan Lutchansky]

On Sat, Feb 11, 2006 at 01:36:35PM -0500, Jesse Guardiani wrote:
> On Friday 10 February 2006 6:11 pm, Nathan Lutchansky wrote:
> > On Fri, Feb 10, 2006 at 03:24:30PM -0700, Brian Wood wrote:
> > > On Feb 10, 2006, at 2:12 PM, Jesse Guardiani wrote:
> > > > In addition to XvMC support, recording to Mpeg-2 would allow for
> > > > DVD burning via MythBurn.
> > > 
> > > Well the world is going the other way, towards mpeg4. I heard that
> > > DirectV's newest satellite is putting out mpeg4 streams, with
> > > Echostar to follow soon.
> > 
> > Actually, the world is going to H.264, which isn't supported in any
> > video card yet as far as I know.
> 
> Aren't you both right? Isn't H.264 just another name for Mpeg-4 layer
> 10 or something?

H.264 is the ITU's designator for the standard, and ISO has issued the
same text as ISO/IEC 14496-10.  Collectively, the ISO/IEC 14496
standards are known as MPEG4, so technically, yes, H.264 is a video
coding format that is part of the MPEG4 standard.  However, the original
video coding in the 14496 series was 14496-2, which what is most people
think of as "MPEG4 video".  So I think if you tried to refer to H.264 as
"MPEG4 video" you would just end up confusing everyone.  If you still
want to say MPEG4 though, you could call it "MPEG4 AVC" (AVC=Advanced
Video Coding) as that was the working name of the project.  -Nathan
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