[MEncoder-users] ogm2avi script

[Phil Ehrens]

Your ogm only has one sound stream. Use -aid 0.
And if your ogm has no subtitle stream, don't
use -sid.

Note that the script you are using, which I wrote, is a
very simpleminded one, and was intended to create very
high bitrate .avi files as an intermediate step to making
dvd's.

Richard Konrad wrote:
> This is, I believe, the first time I've posted to this group.  I have
> a .ogm file which through a script I found at the transcode website,
> I've been able to convert it to an .avi.  The problem is there is no
> sound.  tcprobe -i confirms this.  This is the script:
> 
> #!/bin/sh
> 
>  #
>  # This script converts dual audio soft-subbed .ogm files
>  # to hard-subbed .avi files using the second audio track
>  # and the first subtitle track.
>  # I recommend using a 24 pixel subtitle font, anything
>  # less and folks *will* complain.
>  #
>  # Note that the bitrate of 3000 is HUGE. I do this
>  # because the .avi I create here is just an intermediate
>  # product. If you are only after a .avi, you should be
>  # using a bitrate of <= 1800 and a two-pass encode!
>  #
>  # 2-pass encoding is done by adding a vpass=1 option
>  # to lavcopts and just copying the audio on the first
>  # pass and setting -o /dev/null. Then use the vpass=2
>  # option on the command shown here and the dynamic
>  # analysis data from pass 1 will be used for the encode.
>  # Play with different vbitrate settings to see what the
>  # real optimal size/quality point is.
>  #
>  # Note that changing .ogm to .mkv in this script will
>  # make it work on .mkv files. Slight mods will allow
>  # it to be used on dvd's.
>  #
> 
>  files="$@";
> 
> 
>  for arg in $files ;
> 
> 
>  do
> 
> 
>  file=`echo $arg | sed -e 's/\.ogm$//'`
> 
> 
>  mencoder -oac mp3lame \
>           -ovc lavc \
>           -lavcopts vcodec=mpeg4:vqscale=2:vhq:v4mv:trell:vbitrate=3000
> \
>           -aid 1 \
>           -sid 0 \
>           -o $file.avi $file.ogm >& /dev/null
> 
> 
>  done
> 
>  # end of script
> 
> Any thoughts?  Is there a problem with the script?  THanks.
> 
> Richard
> 
> 
> 
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-- 
Phil Ehrens <phil at slug.org>      | Fun stuff:
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