Re: Video Coding Puzzle

Hi

On Friday 09 July 2004 17:17, Mike Melanson wrote:
[...]
> 0x3fa73d75 -> 1.306563
> 0x3f0a8bd4 -> 0.541196
> 0x3ec3cf15 -> 0.382439
> 0x59c00000 -> 6755399441055744.000000
>
> however i had trouble defining these numbers as a float, since
>
> 1.306563 -> 0x3fa73d75
> 0.541196 -> 0x3f0a8bd2                <---------------
> 0.382439 -> 0x3ec3cf0b                 <---------------
> 6755399441055744.000000 -> 0x59c00000
>
> which give a wrong result. This made me define those constants as
> hexadecimal values instead of floating point numbers just to be on the safe
> side (although this could be a quirk from Visual C++, i have yet to verify
> this)
u need to use more digits to uniquely store floats, try
		1.3065630,
		0.5411961,
		0.3824393,
		6755399441055744.0000000

[...]
-- 
Michael
level[i]= get_vlc(); i+=get_vlc();		(violates patent EP0266049)
median(mv[y-1][x], mv[y][x-1], mv[y+1][x+1]);	(violates patent #5,905,535)
buf[i]= qp - buf[i-1];				(violates patent #?)
for more examples, see http://mplayerhq.hu/~michael/patent.html
stop it, see http://petition.eurolinux.org & http://petition.ffii.org/eubsa/en


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