[MPlayer-users] Encoding to SVCD

[Rich Felker]

On Thu, Nov 17, 2005 at 02:45:16PM +0000, Tony Houghton wrote:
> In <20051116185622.GX247 at brightrain.aerifal.cx>, Rich Felker wrote:
> 
> > On Wed, Nov 16, 2005 at 04:35:00PM +0000, Tony Houghton wrote:
> > > I want to encode a 24000/1001 fps film to PAL SVCD, and have a few
> > > difficulties. SVCD is 25fps and I think the most sensible way to convert
> > > it would be to use -fps 25 -ofps 25 and play it slightly faster rather
> > > than add frames. I believe that's how PAL DVD players play 24fps
> > > material anyway. So I presume I need to speed up the sound to
> > > compensate. The source has 48KHz MP3 which I need to convert to 44.1KHz
> > > MP2 for SVCD anyway. If I used -srate 44100 and -af resample=42293.70629
> > > [1] would that do the trick?
> > 
> > No. There is an option for exactly what you want, -speed! Just use:
> > 
> > -speed 25025/24000 -srate 44100
> 
> That works really well, thanks! It sorts out the video fps as well; -fps
> 25 and -ofps 25 still seemed to be inserting duplicate frames and
> keeping the film at its original length.
> 
> It seems to mess up the bitrate estimations for -ovc frameno though;
> they were way over what I needed to use.

-ovc frameno is deprecated and should NEVER NEVER NEVER be used!
Calculating bitrate is elementary school math.....

Rich