Celartem::DjVu::JBIG2DecodeHelper Struct Reference

#include <djv_jbig2decoder.h>

Static Public Member Functions
static AutoPtr< JB2Dictionary >	createDict (Stream *inJB2d)
static AutoPtr< JB2Dictionary >	createDict (const Chunk *inJB2d)
static AutoPtr< JB2Page >	createPage (Stream *inJB2p, JB2Dictionary *inDict)
static AutoPtr< JB2Page >	createPage (const Chunk *inJB2p, JB2Dictionary *inDict)

Detailed Description

This class provides supplemental functions to decode JBIG2 images.
The actual JBIG2 decoder is integrated into JB2 decoder and the rendering functions are provided by JB2Page.
Please note that the decoder equips only some parts of JBIG2 specification enough to support JBIG2 on DjVu and PDF.

See Also

JB2Page, JBIG2EncodeHelper

Member Function Documentation

static AutoPtr<JB2Dictionary> Celartem::DjVu::JBIG2DecodeHelper::createDict ( Stream *  inJB2d )

static

Decode JB2d (JBIG2 dictionary) stream.

Parameters

inJB2d

Stream which contains JB2d (JBIG2 dictionary) data.

Returns

Pointer to the newly created JB2Dictionary instance.

static AutoPtr<JB2Dictionary> Celartem::DjVu::JBIG2DecodeHelper::createDict ( const Chunk *  inJB2d )

static

Decode JB2d (JBIG2 dictionary) chunk.

Parameters

inJB2d

Chunk which contains JB2d (JBIG2 dictionary) data.

Returns

Pointer to the newly created JB2Dictionary instance.

static AutoPtr<JB2Page> Celartem::DjVu::JBIG2DecodeHelper::createPage ( Stream *  inJB2p, JB2Dictionary *  inDict  )

static

Decode JB2p (JBIG2 page) stream.

Parameters

inJB2p	Stream which contains JB2p (JBIG2 page) data.
inDict	JBIG2 dictionary instance if any. It can be NULL for page data without dictionary.

Returns

Pointer to the newly created JB2Page instance.

static AutoPtr<JB2Page> Celartem::DjVu::JBIG2DecodeHelper::createPage ( const Chunk *  inJB2p, JB2Dictionary *  inDict  )

static

Decode JB2p (JBIG2 page) chunk.

Parameters

inJB2p	Chunk which contains JB2p (JBIG2 page) data.
inDict	JBIG2 dictionary instance if any. It can be NULL for page data without dictionary.

Returns

Pointer to the newly created JB2Page instance.

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The documentation for this struct was generated from the following file:

• djv_jbig2decoder.h