Struct MdctContext 

pub struct MdctContext {
    pub n: usize,
    pub twiddle_cos: Vec<i32>,
    pub twiddle_sin: Vec<i32>,
}

Pre-computed twiddle factors for MDCT in 2.30 fixed-point

Fields

n: usize

Block size (N)

twiddle_cos: Vec<i32>

Twiddle factors (cos) in 2.30 fixed-point

twiddle_sin: Vec<i32>

Twiddle factors (sin) in 2.30 fixed-point

Implementations

impl MdctContext

pub fn new(n: usize) -> Self

Create MDCT context for a given block size, precomputing twiddle factors.

pub fn imdct(&self, input: &[i32], output: &mut [i32])

Perform inverse MDCT: N/2 frequency coefficients -> N time-domain samples.

Trait Implementations

impl Clone for MdctContext

fn clone(&self) -> MdctContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MdctContext

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

Formats the value using the given formatter.