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Added benchmark for agc and inlines

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UnknownSuperficialNight 2024-09-29 15:03:58 +13:00
parent d4a09f3f0b
commit f4bb729235
2 changed files with 20 additions and 0 deletions
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16
benches/effects.rs
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@ -46,3 +46,19 @@ fn amplify(bencher: Bencher) {
.with_inputs(|| TestSource::music_wav().to_f32s()) .with_inputs(|| TestSource::music_wav().to_f32s())
.bench_values(|source| source.amplify(0.8).for_each(divan::black_box_drop)) .bench_values(|source| source.amplify(0.8).for_each(divan::black_box_drop))
} }
#[divan::bench]
fn agc(bencher: Bencher) {
bencher
.with_inputs(|| TestSource::music_wav().to_f32s())
.bench_values(|source| {
source
.automatic_gain_control(
1.0, // target_level
2.0, // attack_time (in seconds)
0.01, // release_time (in seconds)
5.0, // absolute_max_gain
)
.for_each(divan::black_box_drop)
})
}

4
src/source/agc.rs
View file

@ -59,6 +59,7 @@ impl CircularBuffer {
/// Creates a new CircularBuffer with a fixed size determined at compile time. /// Creates a new CircularBuffer with a fixed size determined at compile time.
/// ///
/// The `_size` parameter is ignored as the buffer size is set by `RMS_WINDOW_SIZE`. /// The `_size` parameter is ignored as the buffer size is set by `RMS_WINDOW_SIZE`.
#[inline]
fn new(_size: usize) -> Self { fn new(_size: usize) -> Self {
CircularBuffer { CircularBuffer {
buffer: [0.0; RMS_WINDOW_SIZE], buffer: [0.0; RMS_WINDOW_SIZE],
@ -70,6 +71,7 @@ impl CircularBuffer {
/// Pushes a new value into the buffer and returns the old value. /// Pushes a new value into the buffer and returns the old value.
/// ///
/// This method maintains a running sum for efficient mean calculation. /// This method maintains a running sum for efficient mean calculation.
#[inline]
fn push(&mut self, value: f32) -> f32 { fn push(&mut self, value: f32) -> f32 {
let old_value = self.buffer[self.index]; let old_value = self.buffer[self.index];
self.buffer[self.index] = value; self.buffer[self.index] = value;
@ -81,6 +83,7 @@ impl CircularBuffer {
/// Calculates the mean of all values in the buffer. /// Calculates the mean of all values in the buffer.
/// ///
/// This operation is O(1) due to the maintained running sum. /// This operation is O(1) due to the maintained running sum.
#[inline]
fn mean(&self) -> f32 { fn mean(&self) -> f32 {
self.sum / self.buffer.len() as f32 self.sum / self.buffer.len() as f32
} }
@ -95,6 +98,7 @@ impl CircularBuffer {
/// * `attack_time` - Time constant for gain increase /// * `attack_time` - Time constant for gain increase
/// * `release_time` - Time constant for gain decrease /// * `release_time` - Time constant for gain decrease
/// * `absolute_max_gain` - Maximum allowable gain /// * `absolute_max_gain` - Maximum allowable gain
#[inline]
pub fn automatic_gain_control<I>( pub fn automatic_gain_control<I>(
input: I, input: I,
target_level: f32, target_level: f32,