[mythtv-users] Using firewire input and channel changing on SA3250

[Dan Gapinski]

I was afraid you'd paraphrase something like that! 

A little math then suggests the biggest drives that
money can buy. Not trying to be negative - just trying
to process Myth as less of a project and more of a
hobby. :-)

Honestly, I'm more curious about the channel changing
over firewire. Anyone know anything about that?

Thanks,
Dan

--- Yeechang Lee <ylee at pobox.com> wrote:

> Dan Gapinski <ashembers at sbcglobal.net> says:
> > I found a few things about using the SA3250 that I
> > thought I might share, since I have not seen much
> buzz
> > on these boxes. =
> 
> [...]
> 
> > 3) I don't know if it's the same way with Myth,
> but
> > when I use CapDVHS to capture video over firewire,
> the
> > resultant MPEG2 file is 700+MB for 6.5 minutes! I
> > figure that can't be right - Myth can do better
> right?
> 
> To paraphrase Gertrude Stein, "MPEG2 is MPEG2 is
> MPEG2 is MPEG2." HD
> cable boxes send out over their FireWire outputs the
> exact MPEG2 feed
> the boxes get; same with HD capture cards like the
> HD3000 and
> HD5000. All CapDVHS, MythTV, or any other software
> that can use the
> feeds does is decompress and decode it for playback.
> Let me repeat:
> Nothing on the computer side does any "compression"
> or "encoding"
> whatsoever with MPEG2. (It is possible to reencode
> the MPEG2 feeds to
> smaller files, and MythTV can help, but that's
> completely separate
> from capturing the initial feed from the cable box
> or antenna.)
> 
> "700MB+ for 6.5 minutes" is accurate; see
>
<URL:http://www.mail-archive.com/mythtv-users@mythtv.org/msg55101.html>.
> 
> Moral of the story: To paraphrase Mr. McGuire of
> _The Graduate_, "I
> want to say two words to you. Just two words . . .
> Disk space." And
> lots of it.
> 
> -- 
> Yeechang Lee <ylee at pobox.com> | +1 650 776 7763 |
> San Francisco CA US
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