gif.DisposalBackground
// Disposal Methods.
const DisposalBackground = 0x02
gif.DisposalNone
// Disposal Methods.
const DisposalNone = 0x01
gif.DisposalPrevious
// Disposal Methods.
const DisposalPrevious = 0x03
gif.Decode
// Decode reads a GIF image from r and returns the first embedded
// image as an image.Image.
func Decode(r io.Reader) (image.Image, error)
gif.DecodeAll
// DecodeAll reads a GIF image from r and returns the sequential frames
// and timing information.
func DecodeAll(r io.Reader) (*GIF, error)
gif.DecodeConfig
// DecodeConfig returns the global color model and dimensions of a GIF image
// without decoding the entire image.
func DecodeConfig(r io.Reader) (image.Config, error)
gif.Encode
// Encode writes the Image m to w in GIF format.
func Encode(w io.Writer, m image.Image, o *Options) error
gif.EncodeAll
// EncodeAll writes the images in g to w in GIF format with the
// given loop count and delay between frames.
func EncodeAll(w io.Writer, g *GIF) error