webpanimation

package module
v0.0.0-...-aa4292d Latest Latest
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 Go to latest Published: Aug 7, 2021 License: BSD-3-Clause Imports: 7 Imported by: 0

README

webpanimation

Packge is binding to libwebp providing methods to create webp animations from golang image.Image interface

Installing

go get github.com/sizeofint/webpanimation

Examples

Check out examples folder

Dependencies

The only dependency is libwebp, it source code are embeded in package so no additional installations are needed on machine. It can be updated to latest libwebp via ./generate_from_libwebp.py /path/to/clean/libwebp/src/

Documentation

Index

Constants

View Source 
const (
	WebpMuxAbiVersion     = 0x0108
	WebpEncoderAbiVersion = 0x020f
)
View Source 
const (
	WebpMuxOk              = WebPMuxError(C.WEBP_MUX_OK)
	WebpMuxNotFound        = WebPMuxError(C.WEBP_MUX_NOT_FOUND)
	WebpMuxInvalidArgument = WebPMuxError(C.WEBP_MUX_INVALID_ARGUMENT)
	WebpMuxBadData         = WebPMuxError(C.WEBP_MUX_BAD_DATA)
	WebpMuxMemoryError     = WebPMuxError(C.WEBP_MUX_MEMORY_ERROR)
	WebpMuxNotEnoughData   = WebPMuxError(C.WEBP_MUX_NOT_ENOUGH_DATA)
)

Variables

This section is empty.

Functions

func WebPAnimEncoderAdd 

func WebPAnimEncoderAdd(webPAnimEncoder *WebPAnimEncoder, webPPicture *WebPPicture, timestamp int, webPConfig *WebPConfig) int

func WebPAnimEncoderAssemble 

func WebPAnimEncoderAssemble(webPAnimEncoder *WebPAnimEncoder, webPData *WebPData) int

func WebPAnimEncoderDelete 

func WebPAnimEncoderDelete(webPAnimEncoder *WebPAnimEncoder)

func WebPAnimEncoderOptionsInitInternal 

func WebPAnimEncoderOptionsInitInternal(webPAnimEncoderOptions *WebPAnimEncoderOptions) int

func WebPConfigInitInternal 

func WebPConfigInitInternal(config *WebPConfig) int

func WebPDataClear 

func WebPDataClear(webPData *WebPData)

func WebPDataInit 

func WebPDataInit(webPData *WebPData)

func WebPMuxDelete 

func WebPMuxDelete(webPMux *WebPMux)

func WebPPictureFree 

func WebPPictureFree(webPPicture *WebPPicture)

func WebPPictureImportRGBA 

func WebPPictureImportRGBA(data []byte, stride int, webPPicture *WebPPicture) error

func WebPPictureInit 

func WebPPictureInit(webPPicture *WebPPicture) int

Types

type WebPAnimEncoder 

type WebPAnimEncoder C.WebPAnimEncoder

func WebPAnimEncoderNewInternal 

func WebPAnimEncoderNewInternal(width, height int, webPAnimEncoderOptions *WebPAnimEncoderOptions) *WebPAnimEncoder

type WebPAnimEncoderOptions 

type WebPAnimEncoderOptions C.WebPAnimEncoderOptions

func (*WebPAnimEncoderOptions) GetAnimParams 

func (encOptions *WebPAnimEncoderOptions) GetAnimParams() WebPMuxAnimParams

func (*WebPAnimEncoderOptions) SetAllowMixed 

func (encOptions *WebPAnimEncoderOptions) SetAllowMixed(v int)

func (*WebPAnimEncoderOptions) SetAnimParams 

func (encOptions *WebPAnimEncoderOptions) SetAnimParams(v WebPMuxAnimParams)

func (*WebPAnimEncoderOptions) SetKmax 

func (encOptions *WebPAnimEncoderOptions) SetKmax(v int)

func (*WebPAnimEncoderOptions) SetKmin 

func (encOptions *WebPAnimEncoderOptions) SetKmin(v int)

func (*WebPAnimEncoderOptions) SetMinimizeSize 

func (encOptions *WebPAnimEncoderOptions) SetMinimizeSize(v int)

func (*WebPAnimEncoderOptions) SetVerbose 

func (encOptions *WebPAnimEncoderOptions) SetVerbose(v int)

type WebPConfig 

type WebPConfig C.WebPConfig

func NewWebpConfig 

func NewWebpConfig() *WebPConfig

NewWebpConfig create webpconfig instance

func (WebPConfig) GetLossless 

func (webpCfg WebPConfig) GetLossless() int

func (*WebPConfig) SetAlphaCompression 

func (webpCfg *WebPConfig) SetAlphaCompression(v int)

func (*WebPConfig) SetAlphaFiltering 

func (webpCfg *WebPConfig) SetAlphaFiltering(v int)

func (*WebPConfig) SetAlphaQuality 

func (webpCfg *WebPConfig) SetAlphaQuality(v int)

func (*WebPConfig) SetAutofilter 

func (webpCfg *WebPConfig) SetAutofilter(v int)

func (*WebPConfig) SetEmulateJpegSize 

func (webpCfg *WebPConfig) SetEmulateJpegSize(v int)

func (*WebPConfig) SetExact 

func (webpCfg *WebPConfig) SetExact(v int)

func (*WebPConfig) SetFilterSharpness 

func (webpCfg *WebPConfig) SetFilterSharpness(v int)

func (*WebPConfig) SetFilterStrength 

func (webpCfg *WebPConfig) SetFilterStrength(v int)

func (*WebPConfig) SetFilterType 

func (webpCfg *WebPConfig) SetFilterType(v int)

func (*WebPConfig) SetImageHint 

func (webpCfg *WebPConfig) SetImageHint(v int)

func (*WebPConfig) SetLossless 

func (webpCfg *WebPConfig) SetLossless(v int)

func (*WebPConfig) SetLowMemory 

func (webpCfg *WebPConfig) SetLowMemory(v int)

func (*WebPConfig) SetMethod 

func (webpCfg *WebPConfig) SetMethod(v int)

func (*WebPConfig) SetNearLossless 

func (webpCfg *WebPConfig) SetNearLossless(v int)

func (*WebPConfig) SetPartitionLimit 

func (webpCfg *WebPConfig) SetPartitionLimit(v int)

func (*WebPConfig) SetPartitions 

func (webpCfg *WebPConfig) SetPartitions(v int)

func (*WebPConfig) SetPass 

func (webpCfg *WebPConfig) SetPass(v int)

func (*WebPConfig) SetPreprocessing 

func (webpCfg *WebPConfig) SetPreprocessing(v int)

func (*WebPConfig) SetQuality 

func (webpCfg *WebPConfig) SetQuality(v float32)

func (*WebPConfig) SetSegments 

func (webpCfg *WebPConfig) SetSegments(v int)

func (*WebPConfig) SetShowCompressed 

func (webpCfg *WebPConfig) SetShowCompressed(v int)

func (*WebPConfig) SetSnsStrength 

func (webpCfg *WebPConfig) SetSnsStrength(v int)

func (*WebPConfig) SetTargetPSNR 

func (webpCfg *WebPConfig) SetTargetPSNR(v float32)

func (*WebPConfig) SetTargetSize 

func (webpCfg *WebPConfig) SetTargetSize(v int)

func (*WebPConfig) SetThreadLevel 

func (webpCfg *WebPConfig) SetThreadLevel(v int)

func (*WebPConfig) SetUseDeltaPalette 

func (webpCfg *WebPConfig) SetUseDeltaPalette(v int)

func (*WebPConfig) SetUseSharpYuv 

func (webpCfg *WebPConfig) SetUseSharpYuv(v int)

type WebPData 

type WebPData C.WebPData

func (WebPData) GetBytes 

func (wpd WebPData) GetBytes() []byte

type WebPMux 

type WebPMux C.WebPMux

func WebPMuxCreateInternal 

func WebPMuxCreateInternal(webPData *WebPData, copyData int) *WebPMux

type WebPMuxAnimParams 

type WebPMuxAnimParams C.WebPMuxAnimParams

func (*WebPMuxAnimParams) SetBgcolor 

func (wmap *WebPMuxAnimParams) SetBgcolor(v uint32)

func (*WebPMuxAnimParams) SetLoopCount 

func (wmap *WebPMuxAnimParams) SetLoopCount(v int)

type WebPMuxError 

type WebPMuxError int

func WebPMuxAssemble 

func WebPMuxAssemble(webPMux *WebPMux, webPData *WebPData) WebPMuxError

func WebPMuxGetAnimationParams 

func WebPMuxGetAnimationParams(webPMux *WebPMux, webPMuxAnimParams *WebPMuxAnimParams) WebPMuxError

func WebPMuxSetAnimationParams 

func WebPMuxSetAnimationParams(webPMux *WebPMux, webPMuxAnimParams *WebPMuxAnimParams) WebPMuxError

type WebPPicture 

type WebPPicture C.WebPPicture

func (WebPPicture) GetHeight 

func (wpp WebPPicture) GetHeight() int

func (WebPPicture) GetWidth 

func (wpp WebPPicture) GetWidth() int

func (*WebPPicture) SetHeight 

func (wpp *WebPPicture) SetHeight(v int)

func (*WebPPicture) SetUseArgb 

func (wpp *WebPPicture) SetUseArgb(v int)

func (*WebPPicture) SetWidth 

func (wpp *WebPPicture) SetWidth(v int)

type WebpAnimation 

type WebpAnimation struct {
	WebPAnimEncoderOptions *WebPAnimEncoderOptions
	Width                  int
	Height                 int

	AnimationEncoder *WebPAnimEncoder
	WebPData         *WebPData
	WebPMux          *WebPMux
	WebPPictures     []*WebPPicture
	// contains filtered or unexported fields
}

func NewWebpAnimation 

func NewWebpAnimation(width, height, loopCount int) *WebpAnimation

NewWebpAnimation Initialize animation

func (*WebpAnimation) AddFrame 

func (wpa *WebpAnimation) AddFrame(img image.Image, timestamp int, webPConfig *WebPConfig) error

AddFrame add frame to animation

func (*WebpAnimation) Encode 

func (wpa *WebpAnimation) Encode(w io.Writer) error

Encode encode animation

func (*WebpAnimation) ReleaseMemory 

func (wpa *WebpAnimation) ReleaseMemory()

ReleaseMemory release memory

Source Files

View all Source files

Directories

Path Synopsis
examples
gif-to-webp
simple-animation

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