[MPlayer-users] Creating a letterbox (PAL) VCD

Michel Bardiaux mbardiaux at mediaxim.be
Thu Aug 30 11:20:53 CEST 2007


Colin Rosenthal a écrit :
> We have some windows media files in widescreen format (392x220 pixels). 
> We would
> like to encode them to pal-vcd mpegs in letterbox format. Our 
> first-attempt set of
> mencoder parameters for this is:
> 
> mencoder -oac twolame -twolameopts br=224 -ovc lavc -of mpeg -mpegopts 
> format=xvcd -vf \
>     scale=352:198,expand=352:288:0:45,harddup -srate 44100 -af 
> lavcresample=44100 -lavcopts \
>     vcodec=mpeg1video:keyint=15:vrc_buf_size=327:vrc_minrate=1150:\
> vbitrate=1150:vrc_maxrate=1150:acodec=mp2:abitrate=224:aspect=4/3 -ofps 
> 25  \
>     -o 392x220.mpeg 392x220.wmv
> 
> Does this look reasonable or can anyone suggest possible improvements? 

Better force stereo (dunno the exact option). Some set-top VCD players 
wont accept mono.

> (Also, how
> would you do the same in ffmpeg and would you expect the results to be 
> better/worse/the same?)
> 
> thanks in advance,
> Colin Rosenthal
> 


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Michel Bardiaux
R&D Director
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