Struct FilterChain 

pub struct FilterChain { /* private fields */ }

An ordered chain of filters (the -vf graph).

Implementations

impl FilterChain

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

Parse an FFmpeg-style filter spec: filters separated by ,, each name=a:b:c. An empty/blank spec yields an empty (pass-through) chain.

pub fn is_empty(&self) -> bool

pub fn prepend_range_conversion(&mut self, to_full: bool)

Insert a range conversion at the FRONT of the chain, so every later filter (notably a colour conversion) sees full-range input.

pub fn set_source_color_range(&mut self, range: ColorRange)

Declare the range of the frames entering the chain, so colour conversions interpret Y’CbCr correctly instead of assuming full-range.

pub fn output_color_range(&self) -> Option<ColorRange>

The colour range the chain’s output is in, if any filter in it decides. Later filters win, matching evaluation order.

pub fn apply(&mut self, frame: VideoFrame) -> Result<VideoFrame>

Run every filter in order.

pub fn output_dims(&self, w: u32, h: u32) -> (u32, u32)

The dimensions a frame of (w, h) ends up with after the whole chain.

Trait Implementations

impl Default for FilterChain

fn default() -> Self

Returns the “default value” for a type.