[MPlayer-dev-eng] enhancement for yuv4mpeg output driver

[Michael Niedermayer]

Hi

On Thursday 20 January 2005 03:20, Trent Piepho wrote:
> On Wed, 19 Jan 2005, D Richard Felker III wrote:
> > > + fprintf(yuv_out, "YUV4MPEG2 W%d H%d ", image_width, image_height);
> > > + if(image_fps>23.975973976 && image_fps<23.976073976)
> > > +  fprintf(yuv_out, "F24000:1001 ");
> > > + else if(image_fps>29.96997997 && image_fps<29.97007997)
> > > +  fprintf(yuv_out, "F30000:1001 ");
> >
> > There are already good fraction reducing routines in mplayer (or
> > lavc?) that let you specify maximum magnitude for the denominator.
> > They'll make mplayer's stupid float crap into correct values like
> > 30000/1001.
>
> I found av_reduce() in lavc, but it doesn't work for this.  Depending on
> what I specify for the max, it turns 23.976 into 2996973/125000, 983/41,
> 456427/19037, or 16831/702.  There doesn't seem to be any way to get the
> correct value of 24000/1001.

try to set max to 30000

[...]
-- 
Michael

"nothing is evil in the beginning. Even Sauron was not so." -- Elrond