simple_webp

package module

Go to main page

Versions in this module

v0

v0.2.8

Oct 31, 2026

Changes in this version

+ func DecodeWebp(r io.Reader, opt DecodeOptions) (image.Image, error)

type LossyOptions

+ Segment bool

type ParseOptions

+ MaxChunkSize int

type Webp

+ func (w *Webp) DecodeInto(dst *image.NRGBA) error

v0.2.7

Oct 22, 2026

Changes in this version

+ func EncodeAnimation(w io.Writer, a *Animation, opt *AnimationOptions) error

+ func EncodeAnimationBytes(a *Animation, opt *AnimationOptions) ([]byte, error)

+ type Animation struct

+ BackgroundColor color.NRGBA

+ CanvasHeight int

+ CanvasWidth int

+ Frames []Frame

+ LoopCount uint16

+ type AnimationInfo struct

+ BackgroundColor color.NRGBA

+ FrameCount int

+ Height int

+ LoopCount uint16

+ Width int

+ type AnimationOptions struct

+ Encode *EncodeOptions

+ Lossy bool

+ LossyOpt *LossyOptions

type EncodeOptions

+ EXIF []byte

+ ICCP []byte

+ XMP []byte

+ type Frame struct

+ Blend bool

+ Dispose bool

+ Duration int

+ Image image.Image

+ X int

+ Y int

+ type FrameOptions struct

+ MaxPixels int

+ MaxTotalPixels int

+ type ImageOptions struct

+ Encode *EncodeOptions

+ Lossy bool

+ LossyOpt *LossyOptions

type LossyOptions

+ AlphaFilter uint8

+ AlphaUncompressed bool

+ EXIF []byte

+ FilterLevel int

+ ICCP []byte

+ QualityZero bool

+ SimpleFilter bool

+ TargetBytes int

+ XMP []byte

+ type ParseOptions struct

+ Strict bool

+ VerifySize bool

type PixelFormat

+ const PixelFormatYCbCr

type Webp

+ func NewWebp(width, height int) *Webp

+ func ParseWebpBytesWith(b []byte, opt ParseOptions) (*Webp, error)

+ func ParseWebpWith(r io.Reader, opt ParseOptions) (*Webp, error)

+ func (w *Webp) AddFrame(f *ANMF) error

+ func (w *Webp) AnimationInfo() (AnimationInfo, error)

+ func (w *Webp) FrameAt(i int, opt FrameOptions) (*image.NRGBA, int, error)

+ func (w *Webp) FramesWith(opt FrameOptions) ([]*image.NRGBA, []int, error)

+ func (w *Webp) InvalidateCache()

+ func (w *Webp) RemoveFrame(i int) error

+ func (w *Webp) SetImage(m image.Image, opt *ImageOptions) error

v0.2.6

Oct 20, 2026

v0.2.5

Oct 20, 2026

v0.2.4

Oct 20, 2026

v0.2.3

Oct 20, 2026

v0.2.2

Oct 20, 2026

Changes in this version

+ func EncodeLossy(w io.Writer, m image.Image, opt *LossyOptions) error

+ func EncodeLossyBytes(m image.Image, opt *LossyOptions) ([]byte, error)

+ type LossyOptions struct

+ Quality int

v0.2.1

Oct 19, 2026

v0.2.0

Oct 17, 2026

v0.1.0

Oct 17, 2026

Changes in this version

+ const ALPHCompressionLossless

+ const ALPHCompressionNone

+ const ALPHFilterGradient

+ const ALPHFilterHorizontal

+ const ALPHFilterNone

+ const ALPHFilterVertical

+ const FlagAlpha

+ const FlagAnimation

+ const FlagEXIF

+ const FlagICC

+ const FlagXMP

+ var ErrChunkNotFound = errors.New("chunk not found")

+ var ErrImageTooLarge = errors.New("webp image too large")

+ var ErrNotWebP = errors.New("invalid webp: bad RIFF/WEBP signature")

+ var ErrUnsupported = errors.New("unsupported webp feature")

+ func Decode(r io.Reader) (image.Image, error)

+ func DecodeConfig(r io.Reader) (image.Config, error)

+ func Encode(w io.Writer, m image.Image, opt *EncodeOptions) error

+ func EncodeBytes(m image.Image, opt *EncodeOptions) ([]byte, error)

+ type ALPH struct

+ Compression uint8

+ Data []byte

+ Filter uint8

+ Preprocessing uint8

+ func (a *ALPH) ChunkName() FourCC

+ func (a *ALPH) Parse(c *riffChunk) error

+ type ANIM struct

+ BackgroundColor uint32

+ LoopCount uint16

+ func (a *ANIM) ChunkName() FourCC

+ func (a *ANIM) Parse(c *riffChunk) error

+ type ANMF struct

+ ALPH *ALPH

+ Blend bool

+ Dispose bool

+ Duration int

+ Height int

+ VP8 *VP8

+ VP8L *VP8L

+ Width int

+ X int

+ Y int

+ func (a *ANMF) ChunkName() FourCC

+ func (a *ANMF) Parse(c *riffChunk) error

+ type ChunkParse interface

+ ChunkName func() FourCC

+ Parse func(chunk *riffChunk) error

+ type DecodeOptions struct

+ Format PixelFormat

+ Frame int

+ MaxPixels int

+ type EXIF struct

+ Data []byte

+ func (e *EXIF) ChunkName() FourCC

+ func (e *EXIF) Parse(c *riffChunk) error

+ type EncodeOptions struct

+ Lossless bool

+ Method int

+ type FourCC string

+ const ALPHChunk

+ const ANIMChunk

+ const ANMFChunk

+ const EXIFChunk

+ const ICCPChunk

+ const RIFFChunk

+ const VP8Chunk

+ const VP8LChunk

+ const VP8XChunk

+ const WEBPChunk

+ const XMPChunk

+ type ICCP struct

+ Data []byte

+ func (i *ICCP) ChunkName() FourCC

+ func (i *ICCP) Parse(c *riffChunk) error

+ type PixelFormat int

+ const PixelFormatNRGBA

+ const PixelFormatRGBA

+ type RawChunk struct

+ Data []byte

+ Name FourCC

+ type VP8 struct

+ Data []byte

+ FirstPartSize int

+ Height int

+ ShowFrame bool

+ Version uint8

+ Width int

+ func (v *VP8) ChunkName() FourCC

+ func (v *VP8) Parse(c *riffChunk) error

+ type VP8L struct

+ AlphaUsed bool

+ Data []byte

+ Height int

+ Version uint8

+ Width int

+ func (v *VP8L) ChunkName() FourCC

+ func (v *VP8L) Parse(c *riffChunk) error

+ type VP8X struct

+ CanvasHeight int

+ CanvasWidth int

+ Flags uint8

+ func (v *VP8X) ChunkName() FourCC

+ func (v *VP8X) HasAlpha() bool

+ func (v *VP8X) HasAnimation() bool

+ func (v *VP8X) HasEXIF() bool

+ func (v *VP8X) HasICC() bool

+ func (v *VP8X) HasXMP() bool

+ func (v *VP8X) Parse(c *riffChunk) error

+ type Webp struct

+ ALPH *ALPH

+ ANIM *ANIM

+ ANMFs []*ANMF

+ EXIF *EXIF

+ HasAlpha bool

+ HasAnimation bool

+ Height int

+ ICCP *ICCP

+ OtherChunk map[FourCC][]ChunkParse

+ VP8 *VP8

+ VP8L *VP8L

+ VP8X *VP8X

+ Width int

+ XMP *XMP

+ func ParseWebp(r io.Reader, verifySize ...bool) (*Webp, error)

+ func ParseWebpBytes(b []byte) (*Webp, error)

+ func (w *Webp) AddRawChunk(name FourCC, data []byte) error

+ func (w *Webp) At(x, y int) color.Color

+ func (w *Webp) Bounds() image.Rectangle

+ func (w *Webp) ColorModel() color.Model

+ func (w *Webp) DeleteRawChunk(name FourCC) int

+ func (w *Webp) Frames(maxPixels int) ([]*image.NRGBA, []int, error)

+ func (w *Webp) GetOtherChunkByName(name FourCC) ([]ChunkParse, error)

+ func (w *Webp) Image() (image.Image, error)

+ func (w *Webp) MarshalBytes() ([]byte, error)

+ func (w *Webp) ParseChunk(c ChunkParse, notSave ...bool) error

+ func (w *Webp) RawChunkByName(name FourCC) ([]byte, bool)

+ func (w *Webp) RawChunks() []RawChunk

+ func (w *Webp) ToImage() (image.Image, error)

+ func (w *Webp) ToImageWith(opt DecodeOptions) (image.Image, error)

+ func (w *Webp) WriteTo(out io.Writer) (int64, error)

+ type XMP struct

+ Data []byte

+ func (x *XMP) ChunkName() FourCC

+ func (x *XMP) Parse(c *riffChunk) error

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL