[mythtv-users] DVD Authoring and MythTV Archive howto (writing one...)

[Mario L]

Chad,

There is a patch at the forum that hosts mythtvburn, that at least
allows for compatability in gentoo.  I nabbed the patch, but the
author seems to have made a few mistakes in it too.  If you grab that
& cvs, you'll be a little bit better off, but from the looks of it,
the author still hasn't made any major changes for a bit.

Mario


On Wed, 30 Mar 2005 03:09:04 -0700, Chad <masterclc at gmail.com> wrote:
> Could you possibly submit your "fixes" to the author, or create a
> tarball and submit it to the list for the generic users?  :)
> 
> Cool
> 
> 
> On Tue, 29 Mar 2005 08:59:09 +0200, Fredrik Karlsson <dargosch at gmail.com > wrote:
> > Hi all,
> >
> > I thinkit is not OT to point ot that there is a working solution for
> > knoppmyth which runs from th web intercace and that I was able to port
> > to "regular" mythtv without much trouble.
> >
> > http://sourceforge.net/projects/mythburn/ 
> >
> > There are some work being done on a frontend plugin too in the CVS.
> >
> > /Fredrik
> >
> > On Mon, 28 Mar 2005 06:17:17 -0500 (EST), Cory Papenfuss
> > <papenfuss at juneau.me.vt.edu > wrote:
> > > On Mon, 28 Mar 2005, Jeff Simpson wrote:
> > >
> > > > While the outline looks good, I don't think the organization of the
> > > > writeup was ever the brick wall preventing anything. The real lack is
> > > > in decent software applications to do the job.(ie, I think we should
> > > > be looking for people who can fix the missing parts rather than
> > > > re-write up the workarounds)
> > > >
> > > > but while we're at it, add these utilities to the toolbox, these are
> > > > all I use to make dvds out of PVR-350 NUVs:
> > > >
> > > > nuvexport (using avidemux2, MPEG2->MPEG2 cut option)
> > > > dvdstyler (for making dvd iso)
> > > > k3b (for burning dvd)
> > > >
> > >         I'll agree to this.  The problem with "one-touch" dvd authoring
> > > from ivtv-captured files is that they're not consistent.  Some procedures
> > > work well for some, and not for others.  Two big problems are:
> > >
> > > 1. No lossless MPEG2 cutting that does not break streams.  This would
> > > ideally be rolled into MythTV so when commercials are cut out of an MPEG2
> > > stream, the losslessly-cut MPEG2 stream is what remains.  Current somewhat
> > > working methods include:
> > >         A. avidemux: cut/demux/remux (what nuvexport does).  This method
> > > works most of the time, but breaks when a capture does not have a constant
> > > A/V offset throughout.
> > >         B. gopdit/gopchop: cuts in-place.  This method works somewhat, but
> > > the "correctness" of the resulting stream hasn't been fully verified.
> > > There are some details (timestamp manipulation, open/closed GOPs, "broken"
> > > GOPs, etc) that need to be investigated.
> > >
> > > 2. No MythTV support for MPEG2->MPEG2 cutting.  Ideally, one would want to
> > > apply a cutlist to a capture to save the master footage on the backend
> > > with commercials removed.  Since this tool doesn't yet exist properly,
> > > it's not rolled into MythTV proper... see #1 above.
> > >
> > >         Lather, rinse, repeat.
> > >
> > >         One other point to note is that the ivtv does a *horrible* job of
> > > producing low-mid quality captures.  If one is trying to build a
> > > broadcast-quality archive DVD, they cannot record at a low enough bitrate
> > > to do so straight off the card without crappy quality.  I use a 2-pass
> > > transcode to get very acceptable 2.2 Mbps 352x480 archival DVDs.  Roughly
> > > 760MB per 42-minute show.  That's 6 "hour-long" shows on one DVD.  If you
> > > try to capture at that directly, it'll look horrible.
> > >
> > >   -Cory
> > >
> > > *************************************************************************
> > > * Cory Papenfuss                                                        *
> > > * Electrical Engineering candidate Ph.D. graduate student               *
> > > * Virginia Polytechnic Institute and State University                   *
> > > *************************************************************************
> > >
> > >
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> > >
> > >
> > >
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