Struct AnimationDecoder 

pub struct AnimationDecoder { /* private fields */ }

Stateful decoder for exactly one stored animation sequence.

Implementations

impl AnimationDecoder

pub fn new(input: &[u8], limits: DecodeLimits) -> Result<Self, DecodeError>

Creates a decoder for one stored animated WebP sequence.

The input bytes are copied so the returned decoder owns the data needed by libwebp. Frames are returned as composited, full-canvas RGBA buffers. The decoder does not replay the sequence according to its loop count.

pub fn info(&self) -> &AnimationInfo

Returns metadata for the stored animation sequence.

pub fn frame_durations(&self) -> Result<Vec<Duration>, DecodeError>

Returns one source display duration per stored frame, in frame order.

This reads animation-container metadata only: it does not decode RGBA pixels or advance the sequential decoder. The configured total-duration limit is applied and may cause this method to return an error.

pub fn reset(&mut self)

Resets this decoder to the first frame of its stored animation sequence.

The decoder, input allocation, immutable metadata, and configured limits are preserved; only libwebp’s sequence state and this wrapper’s timing accumulator are reset. This is a sequence reset, not a random-seek operation; the next Self::next_frame call starts at the first stored frame.

pub fn has_more_frames(&self) -> bool

Returns whether unread frames remain in the stored sequence.

pub fn next_frame(&mut self) -> Result<Option<AnimationFrame>, DecodeError>

Returns None only after every frame in the stored sequence was read.

Trait Implementations

impl Drop for AnimationDecoder

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.