Struct Agc 

pub struct Agc {
    pub blocks: u64,
    pub frozen_blocks: u64,
    pub last_level_dbfs: f32,
    /* private fields */
}

One gain per block, moved toward the target at the attack or release rate, applied in f32 with rounding and saturation.

The block level is its RMS in dBFS; the correction is target − (level + gain), limited to what the rate allows in one block duration and to the gain range. Because the whole block gets one gain, blocks should be 10–30 ms.

Fields

blocks: u64

Blocks processed.

frozen_blocks: u64

Blocks whose level was below the noise floor (gain frozen).

last_level_dbfs: f32

Level of the last input block in dBFS.

Implementations

impl Agc

pub fn new(cfg: AgcConfig) -> Self

An AGC starting at 0 dB gain.

pub fn gain_db(&self) -> f32

The gain being applied, in dB.

pub fn config(&self) -> &AgcConfig

The configuration.

Trait Implementations

impl Clone for Agc

fn clone(&self) -> Agc

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Agc

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

Formats the value using the given formatter.

impl Default for Agc

fn default() -> Self

Returns the “default value” for a type.

impl Element for Agc

fn output_format(&self, input: PcmFormat) -> Result<PcmFormat>

The format this element emits for blocks in input, or Err(Unsupported) if it cannot take input at all.

fn process(&mut self, input: PcmBlock<'_>, out: &mut [u8]) -> Result<usize>

Process one block into out, returning the bytes written — a whole number of output frames, possibly zero.

fn reset(&mut self)

Forget all state (filter memories, gains, phases).

fn max_output_bytes(&self, input: PcmFormat, input_bytes: usize) -> usize

Upper bound on the bytes process writes for an input block of input_bytes bytes in input. Defaults to input_bytes (same-size elements); resamplers and channel converters override it.