[MEncoder-users] a/v sync problems

[Jon Drukman]

RC wrote:
> On Mon, 02 Feb 2009 17:40:47 -0800
> Jon Drukman <jdrukman at gmail.com> wrote:
> 
>> is there some way to tell mencoder to convert 
>> the variable frame rate input into a constant frame rate output, by 
>> duplicating/dropping frames as necessary?  i thought -ofps and -vf 
>> harddup would do that but it doesn't seem to work.
> 
> Yes it does.  You're telling mencoder to disable all A/V sync correction
> and the like by using -nosound.  After all, what is there to stay
> in-sync with, if there's only one stream?

if my input file has a video stream with a variable frame rate and a 
duration of one minute, i expect an -ofps/harddup/nosound transcode to 
still be one minute long.  that is definitely not happening.  am i not 
looking at this right?