[mythtv] transcoding with cutlist

Tako Schotanus quintesse at palacio-cristal.com
Tue Aug 19 12:24:33 EDT 2003

Just out of curiosity, what is used when you turn on the option to do
automatic transcoding? Does it use one of these systems (mythmkmovie,
mythencode or mythtranscode) or does it use something else?

NB: I just tried it for the first time and I think I still have some
settings to change because my 770MB original (PVR250) was transcoded
down to a 449MB MPEG4 file which doesn't seem correct ;-) I know Isaac
said it was not finished yet but I thought I had only to do with audio?


> -----Original Message-----
> From: mythtv-dev-bounces at mythtv.org 
> [mailto:mythtv-dev-bounces at mythtv.org] On Behalf Of Russ Southern
> Sent: maandag 18 augustus 2003 20:59
> To: Development of mythtv
> Subject: Re: [mythtv] transcoding with cutlist
> On Thu, Aug 14, 2003 at 01:41:03PM -0500, Geoffrey Hausheer wrote:
> > To make this generally useful, 
> > (c) there needs to be some
> > script that will automate these steps for the user.
> > 
> > (c) is really
> > important, and something I have no interest in doing.  
> There are already
> > two scripts I'm aware of (mythmkmovie and mythencode), and 
> I've never
> > used either.  Is anyone interested in doing this?
> I've done some work with mythmkmovie, to support PVR-250's 
> and cutlists.
> That patch is with the author, awaiting approval.  I know Michael's
> (mythmkmovie author) goal for mkmovie was just to provide a 
> temporary fix
> until something more permanent became available.  It has become a
> nicely-featured package, good for the long haul, IMO.  
> Adapting it to a
> working transcode solution sounds permanent to me :-)
> Anyway, I'd be willing to work on this, but only have MPEG-2 
> cards, so I'd
> have no way to test myth nuvs.  
> Just to summarize (please correct any errors here):
> The recent work with mythtranscode (specifically, the fifo 
> stuff) *should*
> allow mythtranscode to handle cutlists, splitting the 
> post-cutlist output
> into separate video and audio streams.  We can then use any 
> other tools to
> transcode/remux these raw streams as required.  Right?
> Sorry for the catch-up - I've been away on vacation for 10 
> days, and don't
> want to make faulty starting assumptions...
> My primary motivation is creating DVDs/SVCDs from cutlist-ed 
> programs.  So
> far, I have yet to make any set of VOB creation tools happy 
> with the 250's
> files or anything I have converted...  I just upgraded from 
> CVS last night,
> and hope to start playing with the new mythtranscode tonight. 
>  Assuming I
> find some success, I'd be happy to submit a wrapper script 
> (probably based
> on mythmkmovie).
> Russ

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