Mailinglist Archive: opensuse (2459 mails)

[Nico Sabbi <Nicola.Sabbi@xxxxxxxx>]

Il Sunday 16 March 2008 21:49:07 Kai Ponte ha scritto:
> Once I get a video into the style I want,  convert it to mpeg format using a 
> cli tool.
>
> http://www.linux.com/feature/53702
>
> Here's a command to translate a movie from avi format to mpeg2.
>
> mencoder -oac lavc -ovc lavc -of mpeg -mpegopts format=dvd -vf scale=720:480, 

here you are rescaling without keeping into account the original aspect ratio,
possibly distorting the output.
Better use -vf scale=720:-10,expand=720:480  instead

> harddup -srate 48000 -af lavcresample=48000 -lavcopts 
> vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:vbitrate=5000:keyint=18:aspect=16/9:acodec=ac3:abitrate=192
>  -ofps 
> 30000/1001 -o mymovie_dvd_format.mpg mymovie_orig_format.avi

also, it's better avoiding any resampling and framerate conversion as long
as it's not necessary (rather than doing it blindly)
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