[mythtv-users] Anyone tried MPEG2 to MPEG2 transcoding?

Mudit Wahal mwahal at gmail.com
Wed Jul 6 15:00:41 EDT 2005


resending message .. as got relay error from the mailing list.
sorry if it shows up as double message.

++++++++++++++++
I used vlc to transcode MPEG2-TS (HD stream, 1920x1080, 5.1 DD AC3) to
MPEG2 (720x480, 2.0 stereo) when I was using media mvp.
++++++++++++++++

thanks
mudit

On 7/6/05, Mudit Wahal <mwahal at gmail.com> wrote:
> I used vlc to transcode MPEG2-TS (HD stream, 1920x1080, 5.1 DD AC3) to
> MPEG2 (720x480, 2.0 stereo) when I was using media mvp.
> 
> On 7/6/05, Joseph A. Caputo <jcaputo1 at comcast.net> wrote:
> > On Tuesday 05 July 2005 8:31, Phill Edwards wrote:
> > > Looking through the archives I've found that it's possible top set up
> > > MPEG2 to MPEG2 automatic transcoding by issuing the following update
> > > command in mysql:
> > >
> > > update recordingprofiles set videocodec = "MPEG-2" where name =
> > > "MPEG2";
> > >
> > > I want to give this a go because I want to keep my recordings in MPEG2
> > > format but want to reduce the size of the recordings. I can't adjust
> > > the original recording profile because I'm using DVB-T capture cards
> > > which don't encode, they just dump the broadcast MPEG2 stream straight
> > > to disk. So I figure I can reduce the size of them by transcoding to a
> > > lower bit rate MPEG2 file. I need them in MPEG2 format to work on my
> > > xbmcmythtv python scripts frontend.
> > >
> > > The question is - has anyone tried this, and what were your results? I
> > > read a post that said the reason you have to enable it via a mysql
> > > command is because it can be a bit dodgy which is why it's not turned
> > > on by default. Should I expect that it's going to play up quite badly
> > > and defrost my freezer overnight, or will it be OK?
> >
> >
> > Hmmm, unless there's special code to handle MPEG2->MPEG2 transcoding,
> > I'd guess that you'd end up with a Myth NuppelVideo container format
> > file, with MPEG2 video and either raw or MP3 audio.  Probably *not*
> > what you're looking for.
> >
> > -JAC
> > _______________________________________________
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> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >
>


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