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This commit is contained in:
Jamie Hardt 2024-08-03 16:58:29 -07:00
parent 97a15e25c4
commit 490e3e6737
1 changed files with 6 additions and 12 deletions
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18
src/source/linear_ramp.rs
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@ -38,7 +38,7 @@ pub struct LinearGainRamp<I> {
start_gain: f32,
end_gain: f32,
clamp_end: bool,
sample_idx: u64
sample_idx: u64,
}
impl<I> LinearGainRamp<I>
@ -85,17 +85,15 @@ where
}
} else {
self.sample_idx += 1;
let p = self.elapsed_ns / self.total_ns;
factor = self.start_gain * (1.0f32 - p) + self.end_gain * p;
factor = self.start_gain * (1.0f32 - p) + self.end_gain * p;
}
if self.sample_idx % (self.channels() as u64) == 0 {
self.elapsed_ns +=
1000000000.0 / (self.input.sample_rate() as f32);
self.elapsed_ns += 1000000000.0 / (self.input.sample_rate() as f32);
}
self.input.next().map(|value| value.amplify(factor))
}
@ -157,9 +155,7 @@ mod tests {
#[test]
fn test_linearramp() {
let source1 = dummysource(10);
let mut faded = linear_gain_ramp(source1,
Duration::from_secs(4),
0.0, 1.0, true);
let mut faded = linear_gain_ramp(source1, Duration::from_secs(4), 0.0, 1.0, true);
assert_eq!(faded.next(), Some(0.0));
assert_eq!(faded.next(), Some(0.5));
@ -177,9 +173,7 @@ mod tests {
#[test]
fn test_linearramp_clamped() {
let source1 = dummysource(10);
let mut faded = linear_gain_ramp(source1,
Duration::from_secs(4),
0.0, 0.5, true);
let mut faded = linear_gain_ramp(source1, Duration::from_secs(4), 0.0, 0.5, true);
assert_eq!(faded.next(), Some(0.0));
assert_eq!(faded.next(), Some(0.25));