[mythtv-users] Converting "mythtranscoded" files to avi...

[Steve Smith]

On 03/01/2008, Justin <jd2660 at hotmail.com> wrote:
>
> --------------------------------------------------
> From: "Steve Smith" <st3v3.sm1th at gmail.com>
> Sent: Wednesday, January 02, 2008 9:05 AM
> To: "Discussion about mythtv" <mythtv-users at mythtv.org>
> Subject: [mythtv-users]  Converting "mythtranscoded" files to avi...
>
> > A question for the transcoding gurus out there.
> >
> > I currently use the inbuilt Myth transcoding options to transcode many
> of
> > my
> > shows.
> > It's set to transcode to:
> >    MPEG4
> >    2400kbps
> >    MP3 audio with 32K sample rate.
> >
> > This seems to produce NUV files (and good results played back on MythFE
> or
> > VLC player on Windows).
> >
> > For Xmas I got a Yamada DVD player that can play back DIVX, XVID, MP4
> etc.
> >
> > Unfortunately it won't play the NUV files even if I rename them to AVI.
> >
> > I've tried getting ffmpeg to rewrite them to an AVI container using:
> >      ffmpeg -i FILE.nuv -f avi -vcodec copy -acodec copy OUT.avi
> >
> > However, what I get then is a file where the video plays at roughly
> twice
> > the speed of the audio!
> >
> > So my questions are:
> >     1) HOW do I convert the NUV files to a playable AVI (as in playable
> on
> > a "standards" based divx/mp4 player)?
> >     2) Can I do this WITHOUT further transcoding?
> >     3) Can I get Myth to do the transcoding correctly in the first
> place?
> > (I'd accept having to rename the file, re-transcoding seems a bit
> > pointless).
> >
> > Cheers
> >
> > Steve
> >
>
>
>
> > _______________________________________________
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> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >
>
> You can using nuv2avi at http://mythtv.beirdo.ca/nuvtools/nuv2avi.php
> For me I the SVN version wouldn't compile until I commented out the RTjpeg
> code. After that it worked for at least one file a few months ago. I
> haven't
> used it since then.
>
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>


Thanks Justin,

Finally got it to compile and.... the file produced has completely corrupted
sound.

However, if I replex it using:

ffmpeg -i IN.AVI -acodec copy -vcodec copy OUT.avi

it seems to clear it up and the AVI works perfectly on my DVD player (aside
from aspect ratio issues but that's another story!)

I finally got a decent nuvexport, well I say decent the bit rate is WAAAY
out and of course it forces a recode...

Cheers

Steve
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