image

package

v0.4.0 Latest Latest Go to latest Published: Nov 4, 2024 License: Apache-2.0 Imports: 2 Imported by: 2

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var ErrWrongType = errors.New("wrong image type")

ErrWrongType is returned from [Opener].

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type Image interface {
	io.ReaderAt
	io.Closer
	Type() Type
	Size() int64 // -1 if unknown
	Readable() error
}

Image implements io.ReaderAt and io.Closer.

type ImageInfo struct {
	Type  Type  `json:"type"`
	Size  int64 `json:"size"`
	Image `json:"image"`
}

ImageInfo wraps Image for [json.Marshal].

func NewImageInfo(img Image) *ImageInfo

NewImageInfo returns image info.

type OpenWithType func(io.ReaderAt, Type) (Image, error)

OpenWithType opens Image with the specified Type. Opener must return ErrWrongType when the image is not parsable with the specified Type.

type Type string

Type must be a "Backing file format name string" that appears in QCOW2.