Struct Stretch 

pub struct Stretch { /* private fields */ }

WSOLA’s grid at one sample rate.

Implementations

impl Stretch

pub fn new(sample_rate: u32) -> Self

A 20 ms hop, 40 ms window and 10 ms tolerance at sample_rate.

pub const fn hop(&self) -> i64

Output samples between grains.

pub const fn tolerance(&self) -> i64

How far, in samples, a grain may move from its position.

pub const fn window(&self) -> i64

Samples one grain spans.

pub fn grains(&self, first: i64, end: i64) -> (i64, i64)

The first and last grains whose windows touch output samples [first, end).

pub const fn segment(grain: i64) -> i64

The segment whose chain decides grain grain’s offset.

pub const fn chain(segment: i64) -> (i64, i64)

The inclusive grain range segment’s chain runs over, warm-up included.

pub fn reach( &self, first: i64, last: i64, position: impl Fn(i64) -> i64, ) -> (i64, i64)

The signal samples [from, to) that deciding and reading grains first ..= last can touch, with grain k at position(k).

pub fn reach_output( &self, first: i64, end: i64, position: impl Fn(i64) -> i64, ) -> (i64, i64)

The signal samples [from, to) that reading output [first, end) can touch, including the full chains of their segments.

pub fn offsets( &self, segment: i64, position: impl Fn(i64) -> i64, mono: StretchSignal<'_>, ) -> Vec<i64>

The offsets segment’s chain gives its grains, in order, searched on mono.

pub fn overlap_add( &self, first: i64, output: &mut [f32], grains: impl IntoIterator<Item = (i64, i64)>, signal: StretchSignal<'_>, )

Adds each windowed grain (k, read) from signal into output, which starts at output sample first.

Trait Implementations

impl Clone for Stretch

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Stretch

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.