animcodec library

Classes

AnimationFrameArea: Identifies the encoded rectangle from which a complete canvas frame came.
GifAnimationCodec: Reusable dart:convert codec for GIF animation sequences.
GifAnimationDecodeOptions: Resource limits applied before GIF frames are retained.
GifAnimationDecoder: Decodes and inspects bounded GIF animation data.
GifAnimationEncodeOptions: Settings used to quantize and bound an encoded GIF sequence.
GifAnimationEncoder: Encodes complete RGBA frames as GIF89a data.
GifAnimationInfo: Header-only information about a GIF sequence.
GifAnimationStreamEncoder: Encodes complete RGBA canvas frames one at a time as a GIF89a animation.
RasterAnimation: Stores an editable ordered sequence of complete raster frames.
RasterAnimationFrame: Stores one fully composited straight-alpha RGBA animation frame.

AnimationCodecFailure: Classifies why an animation could not be read or written.
AnimationFrameDisposal: Describes what a container does with a displayed frame before the next one.

defaultMaximumAnimationDecodedBytes → const int: Default aggregate byte budget for decoded frames and working canvases.
defaultMaximumAnimationEncodedBytes → const int: Default maximum encoded GIF size accepted by Animcodec.

decodeGifAnimation(Uint8List bytes, {GifAnimationDecodeOptions options = const GifAnimationDecodeOptions()}) → RasterAnimation: Decodes every GIF image descriptor to a complete composited RGBA canvas.
encodeGifAnimation(RasterAnimation animation, {GifAnimationEncodeOptions options = const GifAnimationEncodeOptions()}) → Uint8List: Encodes complete RGBA canvas frames as a GIF89a animation.
inspectGifAnimation(Uint8List bytes, {GifAnimationDecodeOptions options = const GifAnimationDecodeOptions()}) → GifAnimationInfo: Inspects GIF dimensions, timing and frame count without decoding pixels.

AnimationCodecException: Reports malformed animation data, exceeded limits or unsupported values.