[MEncoder-users] MEncoder Settings - Pls Help

[NHW3W at aol.com]

Nik:
 
Thanks. I will try this as soon as I get back from holiday vacation and  
report back.
 
Norbert :+>
 
 
In a message dated 12/26/2006 9:51:37 A.M. Eastern Standard Time,  
mencoder at nik-martin.com writes:

On  12/26/06, NHW3W at aol.com <NHW3W at aol.com> wrote:
>
> Can  anyone tell me what setting in mecoder I  need to change to encode  at
> 41000Hz instead of 48000Hz?
>

> I thought my code  (below) WAS setting to  encode at 44100Hz but when I 
check
> the  output it seems to be still at 48000Hz.
>
> Can anyone tell me  what setting in mecoder I need to change to encode at
> 41000Hz instead  of 48000Hz?
>
>
>  **************************************************************
>  $mencoderString = "mencoder.exe $stub"."_DVD.mpg -srate 44100 -af
>  lavcresample=44100 -oac copy -vf scale=480:320,lavcdeint -sws 2 -ovc  lavc 
 -lavcopts
>  vcodec=mpeg4:vhq:vmax_b_frames=2:vbitrate=400:vpass=1 -ofps 30  -ffourcc  
DX50 -o
> $stub".".avi";
> _print_  (http://forums.afterdawn.com/thread_view.cfm/401584#)
> $mencoderString  ."\n";
> `$mencoderString`;
> $mencoderString = "mencoder.exe  $stub"."_DVD.mpg -srate 44100 -af
> lavcresample=44100 -oac mp3lame  -lameopts mode=3:preset=128:aq=0 -vf
> scale=480:320,lavcdeint -sws 2  -ovc lavc -lavcopts
>  vcodec=mpeg4:vhq:vmax_b_frames=2:vbitrate=400:vpass=2 -ofps 30 -ffourcc 
DX50  -o
>  **********************************************************************
>
>From  my experience with mencoder, I would change the script in a couple of  
ways:
pass 1 will run a LOT faster if you only use pass one to gather  statistics.
also, you are using lame AND the built in lavc - I'd jusy us  elame to
do all your audio resampling/encoding. And, I get GREAT reults  using
XVID for all video encoding and compression:

#pass 1, video  only
mencoder -oac copy -ovc xvid -xvidencopts pass=1 [MyVideo].avi -o  /dev/null

#Then pass 2:
#video + audio track (pass: 2)
mencoder  -oac mp3lame -lameopts mode=1:cbr:br=96:vol=2 -srate 44100
-ovc xvid  -xvidencopts vhq=4:trellis:pass
=2:bitrate=800 -sws 1 -vf  scale=480:320,pullup,pp=md [Input.avi] -o 
[output].AVI


using lame,  the -srate parameter will be passed to the lame encoder as
the frequency to  resample to.  I have no idea why it's not part of
lameopts, but it's  not.

regards,
nik
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