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SampleRateConverter: Generalize tests over rate ratio

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Nicolas Braud-Santoni 2020-10-01 17:00:30 +02:00
parent 663bdd57b2
commit 878de74821
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GPG key ID: E6F98EE292D5ECCB
1 changed files with 11 additions and 8 deletions
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19
src/conversions/sample_rate.rs
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@ -285,10 +285,10 @@ mod test {
assert_eq!(input, output);
}
fn half_sample_rate(to: u32, input: Vec<u16>, n: u16) -> () {
fn divide_sample_rate(to: u32, k: u32, input: Vec<u16>, n: u16) -> () {
let to = if to == 0 { return; } else { SampleRate(to) };
let from = multiply_rate(to, 2);
if n == 0 { return; }
let from = multiply_rate(to, k);
if k == 0 || n == 0 { return; }
// Truncate the input, so it contains an integer number of frames.
let input = {
@ -302,14 +302,15 @@ mod test {
SampleRateConverter::new(input.clone().into_iter(), from, to, n)
.collect::<Vec<_>>();
assert_eq!(input.chunks_exact(n.into()).step_by(2).collect::<Vec<_>>().concat(),
assert_eq!(input.chunks_exact(n.into())
.step_by(k as usize).collect::<Vec<_>>().concat(),
output)
}
fn double_sample_rate(from: u32, input: Vec<u16>, n: u16) -> () {
fn multiply_sample_rate(from: u32, k: u32, input: Vec<u16>, n: u16) -> () {
let from = if from == 0 { return; } else { SampleRate(from) };
let to = multiply_rate(from, 2);
if n == 0 { return; }
let to = multiply_rate(from, k);
if k == 0 || n == 0 { return; }
// Truncate the input, so it contains an integer number of frames.
let input = {
@ -324,7 +325,9 @@ mod test {
.collect::<Vec<_>>();
assert_eq!(input,
output.chunks_exact(n.into()).step_by(2).collect::<Vec<_>>().concat())
output.chunks_exact(n.into())
.step_by(k as usize).collect::<Vec<_>>().concat()
)
}
}