grk::mct Class Reference

#include <mct.h>

Static Public Member Functions
static void	compress_rev (Tile *tile, GrkImage *image, TileComponentCodingParams *tccps)
	Apply a reversible multi-component transform to an image. More...
static void	decompress_rev (Tile *tile, GrkImage *image, TileComponentCodingParams *tccps)
	Apply a reversible multi-component inverse transform to an image. More...
static const double *	get_norms_rev (void)
	Get wavelet norms for reversible transform. More...
static void	compress_irrev (Tile *tile, GrkImage *image, TileComponentCodingParams *tccps)
	Apply an irreversible multi-component transform to an image. More...
static void	decompress_irrev (Tile *tile, GrkImage *image, TileComponentCodingParams *tccps)
	Apply an irreversible multi-component inverse transform to an image. More...
static const double *	get_norms_irrev (void)
	Get wavelet norms for irreversible transform. More...
static bool	compress_custom (uint8_t *p_coding_data, uint64_t n, uint8_t **p_data, uint16_t numComps, uint32_t is_signed)
	Custom MCT transform. More...
static bool	decompress_custom (uint8_t *pDecodingData, uint64_t n, uint8_t **pData, uint16_t pNbComp, uint32_t isSigned)
	Custom MCT decode. More...
static void	calculate_norms (double *pNorms, uint16_t nb_comps, float *pMatrix)
	Calculate norm of MCT transform. More...
static void	decompress_dc_shift_rev (Tile *tile, GrkImage *image, TileComponentCodingParams *tccps, uint16_t compno)
	Apply a reversible inverse dc shift to an image. More...
static void	decompress_dc_shift_irrev (Tile *tile, GrkImage *image, TileComponentCodingParams *tccps, uint16_t compno)
	Apply an irreversible inverse dc shift to an image. More...

Static Private Member Functions
static void	genShift (uint16_t compno, GrkImage *image, TileComponentCodingParams *tccps, int32_t sign, std::vector< ShiftInfo > &shiftInfo)
static void	genShift (GrkImage *image, TileComponentCodingParams *tccps, int32_t sign, std::vector< ShiftInfo > &shiftInfo)

Member Function Documentation

calculate_norms()

static void grk::mct::calculate_norms ( double *  pNorms, uint16_t  nb_comps, float *  pMatrix  )

static

Calculate norm of MCT transform.

Parameters

pNorms	MCT data
nb_comps	number of components
pMatrix	components

Referenced by grk::CodeStreamCompress::init().

compress_custom()

static bool grk::mct::compress_custom ( uint8_t *  p_coding_data, uint64_t  n, uint8_t **  p_data, uint16_t  numComps, uint32_t  is_signed  )

static

Custom MCT transform.

Parameters

p_coding_data	MCT data
n	size of components
p_data	components
numComps	nb of components (i.e. size of p_data)
is_signed	indicates if the data is signed

Returns

false if function encounter a problem, true otherwise

Referenced by grk::TileProcessor::mct_encode().

compress_irrev()

static void grk::mct::compress_irrev ( Tile *  tile, GrkImage *  image, TileComponentCodingParams *  tccps  )

static

Apply an irreversible multi-component transform to an image.

Parameters

tile	tile
image	image
tccps	tile component coding parameters

Referenced by grk::TileProcessor::mct_encode().

compress_rev()

static void grk::mct::compress_rev ( Tile *  tile, GrkImage *  image, TileComponentCodingParams *  tccps  )

static

Apply a reversible multi-component transform to an image.

Parameters

tile	tile
image	image
tccps	tile component coding parameters

Referenced by grk::TileProcessor::mct_encode().

decompress_custom()

static bool grk::mct::decompress_custom ( uint8_t *  pDecodingData, uint64_t  n, uint8_t **  pData, uint16_t  pNbComp, uint32_t  isSigned  )

static

Custom MCT decode.

Parameters

pDecodingData	MCT data
n	size of components
pData	components
pNbComp	nb of components (i.e. size of p_data)
isSigned	tells if the data is signed

Returns

false if function encounter a problem, true otherwise

Referenced by grk::TileProcessor::mctDecompress().

decompress_dc_shift_irrev()

static void grk::mct::decompress_dc_shift_irrev ( Tile *  tile, GrkImage *  image, TileComponentCodingParams *  tccps, uint16_t  compno  )

static

Apply an irreversible inverse dc shift to an image.

Parameters

tile	tile
image	image
tccps	tile component coding parameters

Referenced by grk::TileProcessor::dcLevelShiftDecompress().

decompress_dc_shift_rev()

static void grk::mct::decompress_dc_shift_rev ( Tile *  tile, GrkImage *  image, TileComponentCodingParams *  tccps, uint16_t  compno  )

static

Apply a reversible inverse dc shift to an image.

Parameters

tile	tile
image	image
tccps	tile component coding parameters

Referenced by grk::TileProcessor::dcLevelShiftDecompress().

decompress_irrev()

static void grk::mct::decompress_irrev ( Tile *  tile, GrkImage *  image, TileComponentCodingParams *  tccps  )

static

Apply an irreversible multi-component inverse transform to an image.

Parameters

tile	tile
image	image
tccps	tile component coding parameters

Referenced by grk::TileProcessor::mctDecompress().

decompress_rev()

static void grk::mct::decompress_rev ( Tile *  tile, GrkImage *  image, TileComponentCodingParams *  tccps  )

static

Apply a reversible multi-component inverse transform to an image.

Parameters

tile	tile
image	image
tccps	tile component coding parameters

Referenced by grk::TileProcessor::mctDecompress().

genShift() [1/2]

static void grk::mct::genShift ( GrkImage *  image, TileComponentCodingParams *  tccps, int32_t  sign, std::vector< ShiftInfo > &  shiftInfo  )

staticprivate

genShift() [2/2]

static void grk::mct::genShift ( uint16_t  compno, GrkImage *  image, TileComponentCodingParams *  tccps, int32_t  sign, std::vector< ShiftInfo > &  shiftInfo  )

staticprivate

get_norms_irrev()

static const double* grk::mct::get_norms_irrev ( void  )

static

Get wavelet norms for irreversible transform.

Referenced by grk::TileProcessor::t1_encode().

get_norms_rev()

static const double* grk::mct::get_norms_rev ( void  )

static

Get wavelet norms for reversible transform.

Referenced by grk::TileProcessor::t1_encode().

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

• mct.h