[MEncoder-users] converting and subtitle questions

[Jorge Peixoto de Morais Neto]

2008/3/27 zechao wang <wzc0066 at yahoo.com.cn>:
> Hello, "Jorge Peixoto de Morais Neto", thank you very much really. You have given me so much advice .
>
>  mencoder -ffourcc DX50 -o /dev/null -ovc lavc -vf scale=400:240,harddup -lavcopts vstrict=0:keyint=32:mbd=2:trell:v4mv:last_pred=3:predia=3:dia=3:cbp:preme=2:vbitrate=512:vpass=1:turbo -oac faac -faacopts br=128 mov.rmvb
>
>
>  mencoder -ffourcc DX50 -o mov.avi -ovc lavc -vf scale=400:240,harddup -lavcopts vstrict=0:keyint=32:mbd=2:trell:v4mv:last_pred=3:predia=3:dia=3:cbp:preme=2:vbitrate=512:vpass=2 -oac faac -faacopts br=128 mov.rmvb
>
>  MP4Box -aviraw audio mov.avi
>
>  MP4Box -aviraw video mov.avi
>
>  mv mov_audio.raw mov.aac
>
>  mv mov_video.cmp mov.m4v
>
>  MP4Box -add mov.aac -add mov.m4v mov.mp4
>
>  The quality of the mp4 file is good, but still can not be played in phone.
>  May be the MP4Box was used in a wrong way, anyone who can tell me how to use it correctly .
Does your cell phone output any useful error message?
I'm lost. But try this (although the quality will be bad, this may work):

First pass:
mencoder -ffourcc DX50 -o mov.avi -ovc lavc -vf scale=400:240,harddup
-lavcopts vstrict=0:keyint=16:mbd=2:trell:v4mv:last_pred=3:predia=3:dia=3:cbp:preme=2:vbitrate=512:vrc_buf_size=327:vrc_maxrate=1152:vpass=1:turbo
-oac faac -faacopts br=128 mov.rmvb

Second pass:

mencoder -ffourcc DX50 -o mov.avi -ovc lavc -vf scale=400:240,harddup
-lavcopts
vstrict=0:keyint=16:mbd=2:trell:v4mv:last_pred=3:predia=3:dia=3:cbp:preme=2:vbitrate=512:vrc_buf_size=327:vrc_maxrate=1152:vpass=2
-oac faac -faacopts br=128 mov.rmvb


>
>  Thanks.
>
>  Jorge Peixoto de Morais Neto <please.no.spam.here at gmail.com> 写道： On Wed, Mar 26, 2008 at 2:54 AM, Jorge Peixoto de Morais Neto
>
>   wrote:
>  > 2008/3/21 zechao wang :
>
> >
>  >  >  But file mymov.mp4 could not be played in my cellphone!
>  >  >  Please give me some advice, thank you very much.
>  >  When encoding with mencoder, use the option -ffourcc DX50 . This is
>  >  sometimes necessary for your video to be recognized by a player (see
>  >  the man page for details).
>  >
>
>  Try these options, they have a greater chance of working (see the
>  documentation for their meaning):
>  First pass:
>  mencoder -ffourcc DX50 -o mov.avi -ovc lavc -vf scale=400:240,harddup
>  -lavcopts vstrict=0:keyint=32:mbd=2:trell:v4mv:last_pred=3:predia=3:dia=3:cbp:preme=2:vbitrate=512:vpass=1:turbo
>  -oac faac -faacopts br=128 mov.rmvb
>
>  Second pass:
>
>  mencoder -ffourcc DX50 -o mov.avi -ovc lavc -vf scale=400:240,harddup
>  -lavcopts
>  vstrict=0:keyint=32:mbd=2:trell:v4mv:last_pred=3:predia=3:dia=3:cbp:preme=2:vbitrate=512:vpass=2
>  -oac faac -faacopts br=128 mov.rmvb
>
>
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