codec

type AnimatedDecoder ¶ added in v0.4.4

type AnimatedDecoder interface {
	DecodeAll(io.Reader) (*Animation, error)
}

AnimatedDecoder can decode all frames from an input.

type AnimatedEncoder ¶ added in v0.4.4

type AnimatedEncoder interface {
	EncodeAll(io.Writer, *Animation, opts.Common) error
}

AnimatedEncoder can encode all frames into an animated output.

type Animation ¶ added in v0.4.4

type Animation struct {
	Frames     []image.Image
	Delays     []int
	LoopCount  int
	Background color.RGBA
}

Animation represents a simple multi-frame image. Delays are in milliseconds.

type Codec ¶

type Codec interface {
	String() string

	Flags([]cli.Flag) []cli.Flag
	Extensions() []string

	CanEncode() bool

	Sniff(io.ReaderAt) (int, []byte, error)
	Decode(io.Reader) (image.Image, error)
	Encode(io.Writer, image.Image, opts.Common) error
}

func All() []Codec

func Detect(output, override string) (Codec, string, error)

func FindCodec(ext string, requireEncode bool) (Codec, error)

func Get(name string) (Codec, bool)

type Sniffed ¶

type Sniffed struct {
	Header     []byte
	Confidence int
	Codec      Codec
}

func Sniff(reader io.Reader, input, force string, ignoreExtension bool) (*Sniffed, io.Reader, error)

func (s *Sniffed) String() string