Struct FilterGraph 

pub struct FilterGraph { /* private fields */ }

A composable filter graph applied to frames between decode and encode.

Operations are applied in the order they were added. Video ops are skipped for audio frames, and vice-versa.

The baseline implementation is a pass-through: an empty FilterGraph forwards every frame unchanged.

Implementations

impl FilterGraph

pub fn new() -> Self

Creates a new, empty (pass-through) filter graph.

pub fn add_video_scale(self, width: u32, height: u32) -> Self

Adds a video scale operation (nearest-neighbour).

pub fn add_audio_gain_db(self, db: f64) -> Self

Adds an audio gain operation (dB).

pub fn add_hdr_passthrough(self, mode: HdrPassthroughMode) -> Self

Adds an HDR passthrough / conversion operation.

pub fn apply(&self, frame: Frame) -> Result<Option<Frame>>

Apply all filter operations to frame.

Returns Ok(Some(frame)) to pass the frame on, or Ok(None) to drop it (future use — currently never drops).

Errors

Returns an error if an HDR conversion is unsupported or a filter operation encounters invalid data.

Trait Implementations

impl Clone for FilterGraph

fn clone(&self) -> FilterGraph

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FilterGraph

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

Formats the value using the given formatter.

impl Default for FilterGraph

fn default() -> FilterGraph

Returns the “default value” for a type.