[MPlayer-DOCS] [PATCH] real media sync faq

[Giacomo Comes]

On Thu, Nov 24, 2005 at 12:16:19AM +0100, Diego Biurrun wrote:
> On Wed, Nov 23, 2005 at 11:16:52AM -0400, Giacomo Comes wrote:
> > On Tue, Nov 22, 2005 at 10:23:02PM -0500, compn wrote:
> > > 
> > > +<question><para>
> > > +How can I get rid of a/v desync while seeking through .rm stream?
> > > +</para></question>
> > > +<answer><para>
> > > +<option>-mc 10</option> can help.
> > 
> > I do not suggest such big value. All the real files I have
> > with desync can be fixed with -mc .1 and using .1 has an 
> > advantage over bigger values.
> > The fact is that after a seek while playing a real file with
> > the option -mc n, audio and video are out of sync and it takes 
> > about 2*n+4 sec to regain the sync. So if n is 10, it takes 
> > more than 20 seconds to resync. If n is .1, it takes only few
> > seconds. If you use also the option -autosync 10 togheter with
> > -mc n then the time necessary to resync is about n+1.
> > The value of the argument of -autosync does not seem to play
> > a relevant role. Any values seems good.
> > If n is .1 it is also not necessary to use -autosync.
> 
> -mc 10 works satisfactorily with all the broken samples I have.  Could
> you provide one of your samples for comparison?

I have hundreds of real file like that. Unfortunately the web site that
was providing them has changed format, moving from Real to Windows Media
Player. So there are no more examples downloadable from the net.

I put one short examples in http://encode2mpeg.sf.net/real/

Giacomo