reverse.jsfx

desc:G: Reverse

slider1:0<0,30000,1>Length (ms)
slider2:0<-120,6,1>Wet Mix (dB)
slider3:-120<-120,6,1>Dry Mix (dB)
slider4:0<0,1>Edge Overlap
slider5:0<0,1,1{Off,On}>Old Compatible And Clicky Mode

in_pin:left input
in_pin:right input
out_pin:left output
out_pin:right output

@init
  pos=0;

@slider
  len = srate * slider1 * 2 / 1000;
  wet = 2 ^ (slider2 / 6);
  dry = 2 ^ (slider3 / 6);
  nonclickymode = slider5 != 1;
  fadelen = len * min(slider4, nonclickymode ? 0.5 : 1.0 ) * 0.5;
  freembuf(len * 2);

@sample

s0 = ((len - pos) * 2)[0];
s1 = ((len - pos) * 2)[1];
(pos * 2)[0] = spl0;
(pos * 2)[1] = spl1;

pp = len - pos;
w2 = pp < fadelen ? pp/fadelen : (pp > len - fadelen ? (len - pp) / fadelen : 1);

nonclickymode && w2 == 1 ? (
  pp = abs(len * 0.5 - pos);
  w2 = pp < fadelen ? pp / fadelen : 1;
);

spl0 = s0 * wet * w2 + spl0 * (dry + 1 - w2);
spl1 = s1 * wet * w2 + spl1 * (dry + 1 - w2);

(pos += 1) >= len ? pos = 0;