Re: [MP3 ENCODER] resampling

[Robert Hegemann]

Mark Taylor schrieb am Don, 28 Sep 2000:
> I hope to add something soon which has it precompute the exact amount
> needed.  Does anyone have code which computes the lcd (largest
> common denominator) of two ints?  I think the number of windows needed
> is given by:  out_samplerate/(lcd(in_samplerate,out_samplerate))
> 
> (44.1khz -> 32khz requires 320 windows, but 48khz->32khz only
> requires 4!)


int gcd( int u, int v )
{
    int t;
    
    while (u > 0) {
        if (u < v) {
            t = u;
            u = v;
            v = t;
        }
        u = u-v;
    }
    return v;
}

32000/gcd(44100,32000) = 320
32000/gcd(48000,32000) =   2



Ciao Robert

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