[Ffmpeg-cvslog] CVS: ffmpeg/libavformat psxstr.c,1.9,1.10

[Rich Felker]

On Sun, Aug 14, 2005 at 05:05:47PM +0200, Balatoni Denes wrote:
> Hi!
> 
> vas?rnap 14 augusztus 2005 03.23-kor Rich Felker ezeket a bolcs gondolatokat 
> fogalmazta meg:
> > On Sat, Aug 13, 2005 at 03:58:35PM -0600, Mike Melanson wrote:
> > > Michael Niedermayer CVS wrote:
> > > >Update of /cvsroot/ffmpeg/ffmpeg/libavformat
> > > >In directory mail:/var2/tmp/cvs-serv5914
> > > >
> > > >Modified Files:
> > > >	psxstr.c
> > > >Log Message:
> > > >set timebase correctly? this thing is always 15fps?
> > >
> > > 	I don't think we have any better data than that.
> >
> > Are you sure it's 15 and not 15000/1001? IMO it should be the latter
> > for NTSC. No idea what it is for PAL games..
> 
> That would be "mpeg for NTSC" framerate. For plain NTSC it would be 29.9700 
> fps/2=14.9850 fps.

No, it's always in 1000/1001 units, regardless of whether it's "mpeg
for NTSC" or "plain NTSC". If you read the NTSC history on how the
framerate was reduced when the color carrier was added, the change is
*exactly* a factor of 1000/1001. This isn't just some magic number
people picked for mpeg use.

Rich