Bttv
Jump to navigation
Jump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
Acquisition de l'entrée composite encodée en Divx4:
Première passe avec capture du son en raw:
mencoder -tv on:driver=v4l:input=1:norm=PAL:width=384:height=288:outfmt=rgb16 -o file1.avi -ovc lavc -lavcopts vcodec=mjpeg -oac copy
Deuxième passe pour compresser le son:
mencoder file1.avi -o file2.avi -ovc copy -oac mp3lame
vcodec=<value> use the specified codec (there is no default, you must specify it): __mjpeg__: Motion JPEG __h263__: H263 __h263p__: H263 Plus __mpeg4__: DivX 4/5 __msmpeg4__: DivX 3 __rv10__: an old !RealVideo codec __mpeg1video__: MPEG1 video :) vhq high quality mode, encode each macro block in all modes an choose the smallest (slow). (default: HQ disabled) vpass=<1-2> Activates internal 2pass mode (default: disabled): 1: first pass 2: second pass vbitrate=<value> specify bitrate (pass 1/2) in kBit <4-16000> or Bit <16001-24000000> (warning: 1kBit = 1000 Bits) (default: 800)
Pour le convertir:
[mencoder <source> -oac mp3lame -lameopts br=96:abr -ovc frameno -o frameno.avi] mencoder <source> -oac copy -ovc lavc -lavcopts vcodec=mpeg4:vhq:vbitrate=800:vpass=1 -o /dev/null mencoder <source> -oac copy -ovc lavc -lavcopts vcodec=mpeg4:vhq:vbitrate=800:vpass=2 -o <dest>