[mythtv-users] MPEG2 -> MPEG2 Transcoding

Steven Adeff adeffs.mythtv at gmail.com
Wed Mar 29 15:47:41 UTC 2006

On 3/29/06, mikepolniak <mikpolniak at adelphia.net> wrote:
> On 09:11 Wed 29 Mar     , Steven Adeff wrote:
> > On 3/29/06, mikepolniak <mikpolniak at adelphia.net> wrote:
> > >
> > > I have used the lossless MPEG2 transcoding with nuvexport. nuvexport
> > > runs mythtranscode with honor cutlist and ffmpeg to create the DVD compliant
> > > file for burning. Some of these burned DVD's had bad audio-video sync.
> > >
> > > So i tried ProjectX instead of nuvexport and ProjectX seems to keep the
> > > a-v sync. But then some of the lossless MPEG2 files that ran thru  ProjectX
> > > produced truncated audio files (which some claim is due to noisey
> > > signal). Although i think in my case it has something to do with the
> > > cutting of commercials.
> >
> > When you ran it through ProjectX, what was your output format? I've
> > used it more than the internal cutter and haven't noticed the problem
> > you ran into. I output to m2p, but I've been told by one of the
> > developers that some of the other output modes are still buggy.
> >
> I ran demux to .m2v and .mp2 and then tcrequant on the .m2v file(if i need to
> shrink the size) and then mplex.
> Then check the size of the created audio file. If its around 50MB for a
> 44 min program its truncated and the DVD will only have audio for about
> the first 15-20 mins.
> This doesn't happen all the time and it just maybe something i am doing
> wrong. I have'nt played with it a lot.

that was one of the output modes I had an issue with as well and was
told it was still buggy. I would try using the m2p output for ProjectX
and then continue your process.


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