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webp

package module

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Versions in this module

v1

v1.4.0

Apr 6, 2025

Changes in this version

+ const WEBP_DECODER_ABI_VERSION

+ func WebPGetDecoderVersion() uint

+ func WebPGetInfo(data []byte) (width, height int, ok bool)

v1.1.1

Feb 19, 2022

v1.1.0

Mar 19, 2019

Changes in this version

+ func EncodeExactLosslessRGBA(m image.Image) (data []byte, err error)

type Options

+ Exact bool

v1.0.0

Mar 1, 2018

Changes in this version

+ const DefaulQuality

+ const MemPMagic

+ func C_webpFree(p unsafe.Pointer)

+ func C_webpMalloc(size C_size_t) unsafe.Pointer

+ func ChannelsOf(m image.Image) int

+ func ColorModel(channels int, dataType reflect.Kind) color.Model

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

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

+ func DecodeGray(data []byte) (m *image.Gray, err error)

+ func DecodeGrayToSize(data []byte, width, height int) (m *image.Gray, err error)

+ func DecodeRGBA(data []byte) (m *image.RGBA, err error)

+ func DecodeRGBAToSize(data []byte, width, height int) (m *image.RGBA, err error)

+ func DepthOf(m image.Image) int

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

+ func EncodeGray(m image.Image, quality float32) (data []byte, err error)

+ func EncodeLosslessGray(m image.Image) (data []byte, err error)

+ func EncodeLosslessRGB(m image.Image) (data []byte, err error)

+ func EncodeLosslessRGBA(m image.Image) (data []byte, err error)

+ func EncodeRGB(m image.Image, quality float32) (data []byte, err error)

+ func EncodeRGBA(m image.Image, quality float32) (data []byte, err error)

+ func GetInfo(data []byte) (width, height int, hasAlpha bool, err error)

+ func GetMetadata(data []byte, format string) (metadata []byte, err error)

+ func Load(name string) (m image.Image, err error)

+ func LoadConfig(name string) (config image.Config, err error)

+ func Save(name string, m image.Image, opt *Options) (err error)

+ func SetMetadata(data, metadata []byte, format string) (newData []byte, err error)

+ func SizeofImage(m image.Image) int

+ func SizeofKind(dataType reflect.Kind) int

+ func SizeofPixel(channels int, dataType reflect.Kind) int

+ type C_double C.double

+ type C_float C.float

+ type C_int C.int

+ func C_webpDecodeGrayToSize(data *C_uint8_t, data_size C_size_t, width C_int, height C_int, ...) C_int

+ func C_webpDecodeRGBAToSize(data *C_uint8_t, data_size C_size_t, width C_int, height C_int, ...) C_int

+ func C_webpDecodeRGBToSize(data *C_uint8_t, data_size C_size_t, width C_int, height C_int, ...) C_int

+ func C_webpGetInfo(data *C_uint8_t, data_size C_size_t, width *C_int, height *C_int, ...) C_int

+ type C_int16_t C.int16_t

+ type C_int32_t C.int32_t

+ type C_int64_t C.int64_t

+ type C_int8_t C.int8_t

+ type C_size_t C.size_t

+ type C_uint C.uint

+ type C_uint16_t C.uint16_t

+ type C_uint32_t C.uint32_t

+ type C_uint64_t C.uint64_t

+ type C_uint8_t C.uint8_t

+ func C_webpDecodeGray(data *C_uint8_t, data_size C_size_t, width *C_int, height *C_int) *C_uint8_t

+ func C_webpDecodeRGB(data *C_uint8_t, data_size C_size_t, width *C_int, height *C_int) *C_uint8_t

+ func C_webpDecodeRGBA(data *C_uint8_t, data_size C_size_t, width *C_int, height *C_int) *C_uint8_t

+ func C_webpEncodeGray(pix *C_uint8_t, width C_int, height C_int, stride C_int, ...) *C_uint8_t

+ func C_webpEncodeLosslessGray(pix *C_uint8_t, width C_int, height C_int, stride C_int, output_size *C_size_t) *C_uint8_t

+ func C_webpEncodeLosslessRGB(pix *C_uint8_t, width C_int, height C_int, stride C_int, output_size *C_size_t) *C_uint8_t

+ func C_webpEncodeLosslessRGBA(pix *C_uint8_t, width C_int, height C_int, stride C_int, output_size *C_size_t) *C_uint8_t

+ func C_webpEncodeRGB(pix *C_uint8_t, width C_int, height C_int, stride C_int, ...) *C_uint8_t

+ func C_webpEncodeRGBA(pix *C_uint8_t, width C_int, height C_int, stride C_int, ...) *C_uint8_t

+ type ColorModelInterface interface

+ Channels func() int

+ DataType func() reflect.Kind

+ type MemP interface

+ Bounds func() image.Rectangle

+ Channels func() int

+ DataType func() reflect.Kind

+ MemPMagic func() string

+ Pix func() []byte

+ Stride func() int

+ type MemPColor struct

+ Channels int

+ DataType reflect.Kind

+ Pix PixSlice

+ func (c MemPColor) RGBA() (r, g, b, a uint32)

+ type MemPImage struct

+ XChannels int

+ XDataType reflect.Kind

+ XMemPMagic string

+ XPix PixSlice

+ XRect image.Rectangle

+ XStride int

+ func AsMemPImage(m interface{}) (p *MemPImage, ok bool)

+ func NewMemPImage(r image.Rectangle, channels int, dataType reflect.Kind) *MemPImage

+ func NewMemPImageFrom(m image.Image) *MemPImage

+ func (p *MemPImage) AsStdImage() (m image.Image, ok bool)

+ func (p *MemPImage) At(x, y int) color.Color

+ func (p *MemPImage) Bounds() image.Rectangle

+ func (p *MemPImage) Channels() int

+ func (p *MemPImage) Clone() *MemPImage

+ func (p *MemPImage) ColorModel() color.Model

+ func (p *MemPImage) DataType() reflect.Kind

+ func (p *MemPImage) MemPMagic() string

+ func (p *MemPImage) Pix() []byte

+ func (p *MemPImage) PixOffset(x, y int) int

+ func (p *MemPImage) PixelAt(x, y int) []byte

+ func (p *MemPImage) Set(x, y int, c color.Color)

+ func (p *MemPImage) SetPixel(x, y int, c []byte)

+ func (p *MemPImage) StdImage() image.Image

+ func (p *MemPImage) Stride() int

+ func (p *MemPImage) SubImage(r image.Rectangle) image.Image

+ type Options struct

+ Lossless bool

+ Quality float32

+ type PixSlice []byte

+ func AsPixSilce(slice interface{}) (d PixSlice)

+ func (d PixSlice) Bytes() (v []byte)

+ func (d PixSlice) Complex128s() (v []complex128)

+ func (d PixSlice) Complex64s() (v []complex64)

+ func (d PixSlice) Float32s() (v []float32)

+ func (d PixSlice) Float64s() (v []float64)

+ func (d PixSlice) Int16s() (v []int16)

+ func (d PixSlice) Int32s() (v []int32)

+ func (d PixSlice) Int64s() (v []int64)

+ func (d PixSlice) Int8s() (v []int8)

+ func (d PixSlice) SetValue(i int, dataType reflect.Kind, v float64)

+ func (d PixSlice) Slice(newSliceType reflect.Type) interface{}

+ func (d PixSlice) SwapEndian(dataType reflect.Kind)

+ func (d PixSlice) Uint16s() (v []uint16)

+ func (d PixSlice) Uint32s() (v []uint32)

+ func (d PixSlice) Uint64s() (v []uint64)

+ func (d PixSlice) Uint8s() []uint8

+ func (d PixSlice) Value(i int, dataType reflect.Kind) float64

+ type RGB48Image struct

+ XPix []uint8

+ XRect image.Rectangle

+ XStride int

+ func NewRGB48Image(r image.Rectangle) *RGB48Image

+ func NewRGB48ImageFrom(m image.Image) *RGB48Image

+ func (p *RGB48Image) At(x, y int) color.Color

+ func (p *RGB48Image) Bounds() image.Rectangle

+ func (p *RGB48Image) Channels() int

+ func (p *RGB48Image) ColorModel() color.Model

+ func (p *RGB48Image) DataType() reflect.Kind

+ func (p *RGB48Image) MemPMagic() string

+ func (p *RGB48Image) Opaque() bool

+ func (p *RGB48Image) Pix() []byte

+ func (p *RGB48Image) PixOffset(x, y int) int

+ func (p *RGB48Image) RGB48At(x, y int) [3]uint16

+ func (p *RGB48Image) Set(x, y int, c color.Color)

+ func (p *RGB48Image) SetRGB48(x, y int, c [3]uint16)

+ func (p *RGB48Image) Stride() int

+ func (p *RGB48Image) SubImage(r image.Rectangle) image.Image

+ type RGBImage struct

+ XPix []uint8

+ XRect image.Rectangle

+ XStride int

+ func DecodeRGB(data []byte) (m *RGBImage, err error)

+ func DecodeRGBToSize(data []byte, width, height int) (m *RGBImage, err error)

+ func NewRGBImage(r image.Rectangle) *RGBImage

+ func NewRGBImageFrom(m image.Image) *RGBImage

+ func (p *RGBImage) At(x, y int) color.Color

+ func (p *RGBImage) Bounds() image.Rectangle

+ func (p *RGBImage) Channels() int

+ func (p *RGBImage) ColorModel() color.Model

+ func (p *RGBImage) DataType() reflect.Kind

+ func (p *RGBImage) MemPMagic() string

+ func (p *RGBImage) Opaque() bool

+ func (p *RGBImage) Pix() []byte

+ func (p *RGBImage) PixOffset(x, y int) int

+ func (p *RGBImage) RGBAt(x, y int) [3]uint8

+ func (p *RGBImage) Set(x, y int, c color.Color)

+ func (p *RGBImage) SetRGB(x, y int, c [3]uint8)

+ func (p *RGBImage) Stride() int

+ func (p *RGBImage) SubImage(r image.Rectangle) image.Image

+ type SizeofImager interface

+ SizeofImage func() int