[mythtv] Myth .nuv MPEG4 format portability

Rob Snow lists at dympna.com
Wed Feb 26 21:56:53 EST 2003


Oh, another problem with doing this (besides that it doesn't seem to create a very portable 
.avi) is that you can't deinterlace, index or any other processing option. 
 
-Rob 
 
On Wed, 26 Feb 2003 11:13:09 -0700, Dave Madsen wrote 
> Yes.  Use mencoder to do it. 
>  
> mencoder -ovc copy -oac copy 
>  
> That will essentially repackage the video into an AVI  which should  
> be playable on other machines. 
>  
> Dave Madsen 
> ----- Original Message ----- 
> From: "COFFMAN Steven" <SCoffman at covansys.com> 
> To: "Development of mythtv" <mythtv-dev at snowman.net> 
> Sent: Wednesday, February 26, 2003 10:45 AM 
> Subject: RE: [mythtv] Myth .nuv MPEG4 format portability 
>  
> > Yeah, newer versions of mplayer (such as I have installed) already have 
> > that patch applied. I can watch them fine on my machine. I would like to 
> > be able to share a TV episode with a person who does not have Linux. 
> > 
> > My question: is there a way I can convert the NuppelVideo file to a more 
> > common file format such that the MPEG4 portion is not decoded and 
> > re-encoded at a substantial loss in quality? 
> > 
> > -Steve 
> > 
> > 
> > -----Original Message----- 
> > From: Dave Madsen [mailto:madsend at myrealbox.com] 
> > Sent: Wednesday, February 26, 2003 12:34 PM 
> > To: Development of mythtv 
> > Subject: Re: [mythtv] Myth .nuv MPEG4 format portability 
> > 
> > 
> > The .nuv extension means the file is a NuppelVideo file.  It does use 
> > the Mpeg4 codec do encode it, but it stores it multiplexed with the 
> > audio in the NuppelVideo file format, similar to an AVI if you know 
> > aobut how they work. You can use multiple codecs for the different audio 
> > and video, but they are all saved in the same file.  You can search the 
> > archives for a patch that allows the .nuv files to be played with 
> > mplayer.  This will also allow you to use mencoder which can transcode 
> > the file into a different file format. Read the documentation for 
> > mplayer and you should be able to figure it out, if you still need help 
> > after that, let me know. 
> > 
> > Dave Madsen 
> > ----- Original Message ----- 
> > From: "COFFMAN Steven" <SCoffman at covansys.com> 
> > To: "Development of mythtv" <mythtv-dev at snowman.net> 
> > Sent: Wednesday, February 26, 2003 9:42 AM 
> > Subject: [mythtv] Myth .nuv MPEG4 format portability 
> > 
> > 
> > > Hey, 
> > > Even if I have Myth setup to use MPEG-4 (and MP3), the extension of 
> > > the files is still .nuv. 
> > > 
> > > What do I need to do to make files portable to players/machines 
> > > without myth/NuppelVideo support? (Like a windows machine or 
> > > something) 
> > > 
> > > I'd prefer to avoid lossy transcoding if possible. 
> > > 
> > > Is it just changing the extension? Somehow, I doubt it. 
> > > 
> > > -Steve 
> > > 
> > > 
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> > > 
> > > 
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