decoder

package

v0.0.0-...-fc0e231 Latest Latest Go to latest Published: Dec 8, 2023 License: AGPL-3.0, AGPL-3.0-only Imports: 5 Imported by: 0

Details

Package decoder provides primitives used to decode the jbig2 data stream.

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type Decoder struct {
	// contains filtered or unexported fields
}

Decoder is the structure used to decode JBIG2 encoded byte streams.

func Decode(input []byte, parameters Parameters, globals *document.Globals) (*Decoder, error)

Decode prepares decoder for the jbig2 encoded 'input' data, with optional 'parameters' and optional Globally encoded data segments - 'globals'.

func (d *Decoder) DecodeNextPage() ([]byte, error)

DecodeNextPage decodes next jbig2 encoded page and returns decoded byte stream

func (d *Decoder) DecodePage(pageNumber int) ([]byte, error)

DecodePage decodes jbig2 encoded page for provided 'pageNumber' in the document.

func (d *Decoder) DecodePageImage(pageNumber int) (image.Image, error)

DecodePageImage decodes page with 'pageNumber' from the document and stores it's result within go image.Image.

func (d *Decoder) PageNumber() (int, error)

PageNumber returns

type Parameters struct {
	UnpaddedData bool
	Color        bitmap.Color
}

Parameters are the parameters used by the jbig2 decoder.

Path	Synopsis
arithmetic Package arithmetic contains the jbig2 arithmetic decoder used to decode the jbig2 encoded segments.	Package arithmetic contains the jbig2 arithmetic decoder used to decode the jbig2 encoded segments.
huffman Package huffman contains jbig2 huffman tables used to decode jbig2 encoded data segments.	Package huffman contains jbig2 huffman tables used to decode jbig2 encoded data segments.
mmr Package mmr contains the jbig2 mmr decoder used to decode jbig2 encoded data segments.	Package mmr contains the jbig2 mmr decoder used to decode jbig2 encoded data segments.