[mythtv-users] Recordings to DVD

[Joseph A. Caputo]

On Thursday 12 February 2004 14:43, Greg wrote:
> On Thu, 2004-02-12 at 14:36, Joseph A. Caputo wrote:
> > On Thursday 12 February 2004 08:58, J. Donavan Stanley wrote:
> > > Greg wrote:
> > > > J. Donavan Stanley wrote:
> > > >> Greg wrote:
> > > >>> J. Donavan Stanley wrote:
> > > >>>> Thomas Börkel wrote:
> > > >>>>> HI!
> > > >>>>>
> > > >>>>> J. Donavan Stanley wrote:
> > > >>>>>>> Is there some way to automatically master recordings
> > > >>>>>>> (done in MPEG2) to DVD? Possibly with generated menus? I
> > > >>>>>>> know, there is a plugin for VDR which does this, but I
> > > >>>>>>> don't know about MythTV.
> > > >>>>>>
> > > >>>>>> I've been looking at doing it but have kind of put it on
> > > >>>>>> hold till the MPEG2 to MPEG2 commercial cut code is up to
> > > >>>>>> snuff.  I don't see much
> > > >>>>>
> > > >>>>> What exactly is broken there? Is there a time frame when it
> > > >>>>> will be fixed?
> > > >>>>
> > > >>>> Video artifacts, and audio sync issues following cutpoints
> > > >>>> come to mind.  I believe I saw that someone was working on
> > > >>>> it.  The original author is pressed for time right now so if
> > > >>>> he has to fix it it'll be months from now.
> > > >>>>
> > > >>>> Personally, I'm less and less interested in archiving to
> > > >>>> video DVDs and more interested in archiving MPEG4 content to
> > > >>>> backup DVDs so I can fit several shows on one disk.
> > > >>>
> > > >>> Would be nice if transcoding mpeg2 converted it to a portable
> > > >>> mpeg4, so that I could burning them on a CD/DVD if I decided
> > > >>> to.. Mind you I can do that manually, so I guess if I need to
> > > >>> bad enough, just would be nice to have that built in...
> > > >>
> > > >> Myth has transcoded from MPEG2 to MPEG4 for quite some time
> > > >> now... MPlayer seems to play them fine.
> > > >
> > > > I've know that Myth has be able to transcode from MPEG2 to
> > > > MPEG4 for a while now, but I am not able to play transcode
> > > > files in Mplayer. This morning I attempted to play a transcode
> > > > MPEG4 file in Mplayer and Xine to see if something changed, but
> > > > I am still unable to play the file. I remember the patch for
> > > > Mplayer that allow this.... If there is something I'm missing
> > > > I'd sure like to know it.... =_)
> > >
> > > Odd, I tried the same experiment earlier and had no issues...
> >
> > How are you transcoding the files?  Inside of Myth (i.e.,
> > auto-transcode or press "X" during playback, using the transcoding
> > profiles), or outside of Myth (using nuvexport or transcode)? 
> > AFAIK, if you want to transcode to a portable/standard format, you
> > need to use an external tool like transcode (if your original
> > recordings are HW-generated MPEG) or nuvexport (for both HW- and
> > SW-encoded Myth recordings).
> >
> > -JAC
>
> I'm transcoding within Myth. My original thought on how transcoding
> works concurs  with your statement, that being; transcoding within
> Myth creates a non portable MPEG4 file. To get a portable file,
> transcode the MPEG2 files using other tools.. 

I figured.  I'm more curious as to how Donavan is transcoding, because I 
didn't think Myth's software encoder/transcoder output portable files.  
(I realize the support is in libavcodec & libavformat, but I still 
didn't think Myth did this).

> The transcoding that
> MythDVD uses to rip a dvd is a port format is it not? If so it would
> be nice if Myth used that method...

Well, MythDVD is just a nice frontend to the standard Linux transcoding 
tools.  You're taking a non-Myth source (DVD) and transcoding it to 
another non-Myth format (albeit one that gets imported to MythVideo).  
AFAIK, Myth does not natively support import or export of Myth content 
(i.e., content recorded by Myth).  Until it does, nuvexport is the way 
to go.

-JAC