[mythtv-users] Re: export HD (1920x1080i) to dvd with mencoder?

[Andrew Gallatin]

Byron Poland [wpoland at gmail.com] wrote:
> On 10/24/05, Boleslaw Ciesielski <bolek-mythtv at curl.com> wrote:
> > On Mon, Oct 24, 2005 at 11:38:55AM -0400, Andrew Gallatin wrote:
> > >
> > > I've gotten the following mencoder commandline to convert to pure
> > > mpeg2, but I'm at a loss how to make it scale its output to a DVD
> > > resolution (720x480).
> >
> > For 1080i ATSC files the following works for me:
> >
> > mencoder -of mpeg -mpegopts format=dvd:vbitrate=8000 -oac copy -ovc lavc -lavcopts vcodec=mpeg2video:vbitrate=8000:keyint=18:mbd=2:aspect=16/9 -vf scale=720:480:1 -fps 30000/1001 -vc mpeg12, -o foo.mpg foo.nuv
> >
> > You must also pass -v 16:9 to dvdauthor, since the resulting mpg file
> > has a non-square pixel (16:9 aspect in 720x480).
> >
> > Bolek
> 
> 
> I spent a few days a little while ago figuring out the best route. 
> after trying the tovid scripts and getting nothing but out of A/V sync
> vob's I figured out the following command for ffmpeg: (this was after
> running the ".nuv" through ProjectX in TS mode.
> 
> ffmpeg -i INFILE.ts -target dvd -hq -b 4656 -s 720x410 -padtop 34
> -padbottom 36 -padcolor 000000 -acodec copy OYTU_FILE.mpg
> 
> maybe it was the square pixel thing, but with out the padding the
> resulting dvd when played back on a 4:3 tv was squashed horizontally
> instead of letterboxed, so I added the letterbox manually.


Thanks guys.  I will try these tomorrow with the next one in the
series.  I actually managed to make a dvd today via:

 mencoder -oac copy -ovc lavc -of mpeg -mpegopts format=dvd -vf
scale=720:480,harddup -srate 48000 -af lavcresample=48000 -lavcopts
vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:vbitrate=5000:keyint=18:aspect=16/9
-ofps 30000/1001 -o file.mpg file.nuv

Running dvdauthor on that file.mpg creates a file with audio sync problems, so
I ran it through avidemux2 and-resaved a new mpg file.  *That* file
ended up working just fine.   I played the first few minutes in our
DVD player to check..  

Thanks again!

Drew