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

[Steve Adeff]

On Monday 24 October 2005 11:38, Andrew Gallatin wrote:
> I've been using nuvexport to transcode some of my HD programs.
> I have to use the -mencoder option to nuvexport, otherwise
> mythtranscode seems to leak memory like a seive.   Unfortunately,
> nuvexport does not have an easy way to export to dvd when using
> the -mencoder flag.
>
>
> 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).
>
>  mencoder  -idx /data/1005_20051024070000_20051024080000.nuv -zoom
> 720x480 -of mpeg -mpegopts format=dvd -srate 48000 -ofps 30000/1001
> -ovc lavc -oac lavc -lavcopts    vcodec=mpeg2video:
> vrc_buf_size=1835:   keyint=18:   vrc_maxrate=9800:   vbitrate=4900:
>   acodec=ac3:abitrate=192 -o /data/mythvideo/Bears.mpg
>
> I have also tried moving the zoom 740x480 around, and using
>  -vf scale=720:480.  This gets ignored, and the resulting mpg always
>  seems to be 1920x1080.
>
> Thanks for any help,
>
> Drew

your treating mencoder as if it was mplayer. its not. look through the video 
filter section and you will see crop, scale, pullup, etc. I would also take 
advantage of the mplayer/mencoder documentation on the mplayer website, it 
has a lot of information on how to encode to DVD.

Steve