[mythtv-users] Like an old movie!

[JC]

That's very interesting, Issac.  Thanks.

Don't you think that the GUI should skip asking for the resolution if you
pick hardware mjpeg?  Kind of fools the user letting them pick something
that doesn't do anything.

Finally, as you say, my hardware can't decode software in that resolution.
Well, what if I'm doing recording only (encoding) but not watching it.  In
that case, shouldn't decimation 1,2 2,1 or 1,1 work and then I can "watch
only" later?

As I understand it, decimation 1, x means 640,x and decimation x,1 means
x,480 (for NTSC) right?  So, I guess the next logical question is, is there
any way to go somewhere in-between?  Rather than 352x240 I'd love to try
something around 352x352 or 480x352, etc.  It's a huge jump up to 640x480
from 352x240 (4x right?).  Can intermediate resolutions be added like they
are in the other compression formats?  That would be really nice to have.

Thanks,
JC



----- Original Message -----
From: "Isaac Richards" <ijr at po.cwru.edu>
To: "Discussion about mythtv" <mythtv-users at snowman.net>
Sent: Friday, February 14, 2003 3:12 PM
Subject: Re: [mythtv-users] Like an old movie!


> On Friday 14 February 2003 03:01 pm, JC wrote:
> > If so, do you find that the resolution does anything at all?  I go to
setup
> > / recording / live tv and set the res. to 640x480 or 160x160 then escape
> > out and go to live tv, and it looks *exactly* the same.  However, if I
> > change the quality slider from 70 to 10 it's immediately obvious that
> > there's been a huge change.  However, changing from 70 to 100 isn't
> > noticeable.
> >
> > My decimation is 2,2 and audio is 32k.  What's yours?  Maybe that's the
> > difference?
>
> Decimation directly controls the resolution when using the hardware mjpeg
> stuff.  So, with 2x2, you're really recording at 352x240, regardless of
what
> the resolution is set to.
>
> > If I set it to 1,2 or 2,1 or 1,1 then I can't even view a picture at all
> > (regardless of quality) (and it usually seg faults).
>
> Your box wouldn't be fast enough to decode in software at that resolution.
>
> Isaac
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