Struct AnimFrame 

pub struct AnimFrame {
    pub pixels: Vec<u8>,
    pub width: u32,
    pub height: u32,
    pub x: u32,
    pub y: u32,
    pub duration: u32,
    pub blend: BlendingMethod,
    pub dispose: DisposalMethod,
    pub mode: AnimFrameMode,
}

A single animation frame to encode.

pixels is width * height * 4 interleaved 8-bit [R, G, B, A] bytes in scan-line order — the same flat layout crate::WebpFrame::rgba decodes to. x / y place the frame’s upper-left corner on the canvas (must be even per §2.7.1.1, since the on-disk field is the coordinate / 2).

Fields

pixels: Vec<u8>

width * height * 4 interleaved [R, G, B, A] bytes, scan order.

width: u32

Frame width in pixels (≥ 1).

height: u32

Frame height in pixels (≥ 1).

x: u32

X coordinate of the frame’s upper-left corner on the canvas. Must be even (§2.7.1.1 stores x / 2).

y: u32

Y coordinate of the frame’s upper-left corner on the canvas. Must be even (§2.7.1.1 stores y / 2).

duration: u32

Display duration in 1-millisecond units (the §2.7.1.1 Frame Duration field).

blend: BlendingMethod

§2.7.1.1 blending method (B bit).

dispose: DisposalMethod

§2.7.1.1 disposal method (D bit).

mode: AnimFrameMode

Per-frame compression mode.

Implementations

impl AnimFrame

pub fn new(width: u32, height: u32, pixels: Vec<u8>, duration: u32) -> Self

Construct a top-left, overwrite-blended, non-disposed lossless frame from a flat RGBA buffer — the common case.

BlendingMethod::Overwrite (§2.7.1.1 B = 1) is the default so a full-canvas frame round-trips byte-for-byte through crate::decode_webp’s canvas-compositing path. Callers that want §2.7.1.1 alpha-blending of a translucent sub-frame onto the existing canvas must build the struct literally and set blend: BlendingMethod::AlphaBlend.

Trait Implementations

impl Clone for AnimFrame

fn clone(&self) -> AnimFrame

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AnimFrame

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

Formats the value using the given formatter.

impl Eq for AnimFrame

impl PartialEq for AnimFrame

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for AnimFrame