[MPlayer-users] mencoder - phenomen....

[D Richard Felker III]

On Mon, Oct 27, 2003 at 02:17:51PM +0100, Rainer Hantsch wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]

> Hi!
> 
> Meanwhile it starts to become really strange:
> 
> I try to convert a movie from 3x(S)VCD  into  1x DivX   file. Source is a
> (S)Video-CD, no plain .mpg file.
> 
> So I tried to do the following steps:
> 1.  Use 'mencoder' to convert every particular CD into a partial AVI file.
>     This is done always with the same script (vcd2avi), which I attached
>     for your reference.
> 2.  Now I use avidemux to append all three parts to each other and save the
>     result as a new file.
> 
>     AVIDEMUX wants to use smartcopy. Maybe this is because Audio and video
>     have not exactly the same length?
> 
> 
> After 1. every file plays with voice in sync. Because all three avi's were
> made with the same script and settings, they should (also) have identical
> encoding.
> After putting the parts together, I loose more and more audio sync. within the
> 2nd part it is still acceptable, but the third part is awful, more than 3
> seconds wrong.
> 
> Any idea on what can be the reason for this?

Yes, you should not do this. Instead try to cat the mpeg files (ripped
from the svcd with -dumpstream) together first, then use mencoder.

Rich