Struct Codec 

pub struct Codec { /* private fields */ }

Codec is an opened image whose frames are decoded one at a time, on request.

It is the shape of Flutter’s ui.Codec: a still image is a codec with one frame, so a caller need not know in advance which it holds. Dropping the codec releases the decoder’s state.

Implementations

impl Codec

pub fn info(&self) -> ImageInfo

info is the frame size, frame count and repetition fixed when the image was opened.

pub fn next_frame(&self) -> Pending<Frame>

next_frame decodes the next frame, wrapping to the first after the last.

The returned future owns what it needs and does not borrow the codec, so it can be held across an await. Requests on one codec complete in the order they were made.

Trait Implementations

impl Debug for Codec

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

Formats the value using the given formatter.