Struct AudioFilterChain 

pub struct AudioFilterChain { /* private fields */ }

An ordered -af chain plus the resample target it requests, if any.

Implementations

impl AudioFilterChain

pub fn parse(spec: &str) -> Result<AudioFilterChain>

Parse an FFmpeg-style -af spec. Empty/blank yields a pass-through chain.

pub fn is_empty(&self) -> bool

True when no per-frame work is queued (aresample alone still counts as empty here: the engine’s resampler performs it).

pub fn resample_target(&self) -> Option<u32>

The output sample rate an aresample in the chain asked for.

pub fn apply( &mut self, frame: AudioFrame, t: Option<f64>, ) -> Result<Option<AudioFrame>>

Run the chain on one frame. t is the frame’s start time in seconds (output-relative). Returns None when trimming consumed the whole frame.

Trait Implementations

impl Default for AudioFilterChain

fn default() -> Self

Returns the “default value” for a type.