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Versions in this module

v0

v0.3.0

Feb 7, 2024

v0.2.0

Feb 7, 2024

Changes in this version

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

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

+ func Encode(w io.Writer, img image.Image, c *Config) (err error)

v0.1.0

Feb 7, 2024

Changes in this version

+ const PreprocessingNone

+ const PreprocessingPseudoRandomDithering

+ const PreprocessingSegmentSmooth

+ var RGBModel = color.ModelFunc(rgbModel)

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

+ func EncodeGray(w io.Writer, p *image.Gray, c *Config) (err error)

+ func EncodeRGBA(w io.Writer, img image.Image, c *Config) (err error)

+ func EncodeYUVA(w io.Writer, img *YUVAImage, c *Config) (err error)

+ func GetDecoderVersion() (v int)

+ func GetDestinationManagerMapLen() int

+ func GetInfo(data []byte) (width, height int)

+ type Animation struct

+ Image []*image.RGBA

+ Timestamp []int

+ type AnimationDecoder struct

+ func NewAnimationDecoder(data []byte) (*AnimationDecoder, error)

+ func (ad *AnimationDecoder) Close()

+ func (ad *AnimationDecoder) Decode() (*Animation, error)

+ func (ad *AnimationDecoder) GetInfo() (*AnimationInfo, error)

+ type AnimationEncoder struct

+ func NewAnimationEncoder(width, height, kmin, kmax int) (*AnimationEncoder, error)

+ func (ae *AnimationEncoder) AddFrame(img image.Image, duration time.Duration) error

+ func (ae *AnimationEncoder) Assemble() ([]byte, error)

+ func (ae *AnimationEncoder) Close()

+ type AnimationInfo struct

+ BackgroundColor color.RGBA

+ CanvasHeight int

+ CanvasWidth int

+ FrameCount int

+ LoopCount int

+ type BitstreamFeatures struct

+ Format int

+ HasAlpha bool

+ HasAnimation bool

+ Height int

+ Width int

+ func GetFeatures(data []byte) (f *BitstreamFeatures, err error)

+ type ColorSpace int

+ const YUV420

+ const YUV420A

+ type Config struct

+ func ConfigLosslessPreset(level int) (*Config, error)

+ func ConfigPreset(preset Preset, quality float32) (*Config, error)

+ func (c *Config) AlphaCompression() int

+ func (c *Config) AlphaFiltering() int

+ func (c *Config) AlphaQuality() int

+ func (c *Config) AutoFilter() bool

+ func (c *Config) EmulateJPEGSize() bool

+ func (c *Config) Exact() bool

+ func (c *Config) FilterSharpness() int

+ func (c *Config) FilterStrength() int

+ func (c *Config) FilterType() FilterType

+ func (c *Config) ImageHint() ImageHint

+ func (c *Config) Lossless() bool

+ func (c *Config) LowMemory() bool

+ func (c *Config) Method() int

+ func (c *Config) NearLossless() int

+ func (c *Config) PartitionLimit() int

+ func (c *Config) Partitions() int

+ func (c *Config) Pass() int

+ func (c *Config) Preprocessing() Preprocessing

+ func (c *Config) Quality() float32

+ func (c *Config) SNSStrength() int

+ func (c *Config) Segments() int

+ func (c *Config) SetAlphaCompression(v int)

+ func (c *Config) SetAlphaFiltering(v int)

+ func (c *Config) SetAlphaQuality(v int)

+ func (c *Config) SetAutoFilter(v bool)

+ func (c *Config) SetEmulateJPEGSize(v bool)

+ func (c *Config) SetExact(v bool)

+ func (c *Config) SetFilterSharpness(v int)

+ func (c *Config) SetFilterStrength(v int)

+ func (c *Config) SetFilterType(v FilterType)

+ func (c *Config) SetImageHint(v ImageHint)

+ func (c *Config) SetLossless(v bool)

+ func (c *Config) SetLowMemory(v bool)

+ func (c *Config) SetMethod(v int)

+ func (c *Config) SetNearLossless(v int)

+ func (c *Config) SetPartitionLimit(v int)

+ func (c *Config) SetPartitions(v int)

+ func (c *Config) SetPass(v int)

+ func (c *Config) SetPreprocessing(v Preprocessing)

+ func (c *Config) SetQuality(v float32)

+ func (c *Config) SetSNSStrength(v int)

+ func (c *Config) SetSegments(v int)

+ func (c *Config) SetTargetPSNR(v float32)

+ func (c *Config) SetThreadLevel(v int)

+ func (c *Config) TargetPSNR() float32

+ func (c *Config) ThreadLevel() int

+ type DecoderOptions struct

+ AlphaDitheringStrength int

+ BypassFiltering bool

+ Crop image.Rectangle

+ DitheringStrength int

+ Flip bool

+ NoFancyUpsampling bool

+ Scale image.Rectangle

+ UseThreads bool

+ type FilterType int

+ const SimpleFilter

+ const StrongFilter

+ type ImageHint int

+ const HintDefault

+ const HintGraph

+ const HintLast

+ const HintPhoto

+ const HintPicture

+ type Preprocessing int

+ type Preset int

+ const PresetDefault

+ const PresetDrawing

+ const PresetIcon

+ const PresetPhoto

+ const PresetPicture

+ const PresetText

+ type RGB struct

+ B uint8

+ G uint8

+ R uint8

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

+ type RGBImage struct

+ Pix []uint8

+ Rect image.Rectangle

+ Stride int

+ func NewRGBImage(r image.Rectangle) *RGBImage

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

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

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

+ func (p *RGBImage) RGBAAt(x, y int) color.RGBA

+ type YUVAImage struct

+ A []uint8

+ AStride int

+ CStride int

+ Cb []uint8

+ ColorSpace ColorSpace

+ Cr []uint8

+ Rect image.Rectangle

+ Y []uint8

+ YStride int

+ func DecodeYUVA(data []byte, options *DecoderOptions) (img *YUVAImage, err error)

+ func NewYUVAImage(r image.Rectangle, c ColorSpace) (image *YUVAImage)