Struct Overlay 

pub struct Overlay {
    pub mask: Arc<Mask>,
    pub parts: Vec<OverlayPart>,
    pub from: i64,
    pub to: i64,
    pub fade_in: f64,
    pub fade_out: f64,
    pub motion: Option<Arc<Motion>>,
    pub under: Option<usize>,
}

A mask drawn over output frames from..to (pipeline frame indices, 0 = the first frame output), fading in over the first fade_in frames and out over the last fade_out.

Fields

mask: Arc<Mask>

parts: Vec<OverlayPart>

from: i64

to: i64

fade_in: f64

fade_out: f64

motion: Option<Arc<Motion>>

Per-frame placements, replacing parts (the fades still apply).

under: Option<usize>

Drawn under the pipeline’s layer n (and every one above it); None is above them all.

Implementations

impl Overlay

pub fn parts_at(&self, frame: i64) -> &[OverlayPart]

The placements drawn on output frame frame.

pub fn opacity(&self, frame: i64) -> f32

Opacity at output frame frame, 0 outside from..to. Fades are linear and sampled at the frame’s middle, so a 1-frame fade still shows a half step.

Trait Implementations

impl Clone for Overlay

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Overlay

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

Formats the value using the given formatter.

impl Default for Overlay

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Overlay

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Overlay