WebPDecoder class

Decode a WebP formatted image. This supports lossless (vp8l), lossy (vp8), lossy+alpha, and animated WebP images.

Inheritance

• Object
• Decoder
• WebPDecoder

Constructors

WebPDecoder([List<int>? bytes])

Properties

format → ImageFormat

no setter, override

hashCode → int

The hash code for this object.

no setter, inherited

info → WebPInfo?

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

decode(List<int> bytes, {int? frame}) → Image?

Decode a WebP formatted file stored in bytes into an Image. If it's not a valid webp file, null is returned.

override

decodeFrame(int frame) → Image?

Decode a single frame from the data that was set with startDecode. If frame is out of the range of available frames, null is returned. Non animated image files will only have frame 0. An Image is returned, which provides the image, and top-left coordinates of the image, as animated frames may only occupy a subset of the canvas.

override

isValidFile(List<int> bytes) → bool

Is the given file a valid WebP image?

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

numFrames() → int

How many frames are available to decode?

override

startDecode(List<int> bytes) → WebPInfo?

Validate the file is a WebP image and get information about it. If the file is not a valid WebP image, null is returned.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited