grk::Quantizer Struct Reference

#include <Quantizer.h>

Inheritance diagram for grk::Quantizer:

Public Member Functions
	Quantizer (bool reversible, uint8_t guard_bits)
virtual	~Quantizer ()=default
void	pull (grk_stepsize *stepptr)
	Note:
void	push (grk_stepsize *stepptr)
virtual void	generate (uint8_t decomps, uint8_t max_bit_depth, bool color_transform, bool is_signed)
virtual bool	write (t1_t2::IStreamWriter *stream)

Protected Member Functions
uint32_t	get_num_guard_bits () const

Protected Attributes
uint8_t	Sqcd
union {
uint8_t   u8_SPqcd [97]
uint16_t   u16_SPqcd [97]
};
uint32_t	num_decomps
bool	isReversible

Constructor & Destructor Documentation

Quantizer()

grk::Quantizer::Quantizer	(	bool	reversible,
		uint8_t	guard_bits )

References GRK_MAXBANDS, isReversible, num_decomps, Sqcd, u16_SPqcd, and u8_SPqcd.

Referenced by grk::ojph::QuantizerOJPH::QuantizerOJPH().

~Quantizer()

virtual grk::Quantizer::~Quantizer ( )

virtualdefault

Member Function Documentation

generate()

void grk::Quantizer::generate ( uint8_t decomps, uint8_t max_bit_depth, bool color_transform, bool is_signed )

virtual

Reimplemented in grk::ojph::QuantizerOJPH.

References grk::floorlog2(), grk::t1::BlockCoder::getnorm(), isReversible, num_decomps, u16_SPqcd, and u8_SPqcd.

get_num_guard_bits()

uint32_t grk::Quantizer::get_num_guard_bits ( ) const

protected

References Sqcd.

Referenced by grk::ojph::QuantizerOJPH::get_MAGBp().

pull()

void grk::Quantizer::pull

(

grk_stepsize *

stepptr

)

Note:

Lossless u8_SPqcd[] stores expn in upper 5 bits (mantissa is zero)

Lossy u16_SPqcd[bn] stores expn in upper 5 bits and mantissa in lower 11 bits

References isReversible, num_decomps, u16_SPqcd, and u8_SPqcd.

push()

void grk::Quantizer::push

(

grk_stepsize *

stepptr

)

References isReversible, num_decomps, u16_SPqcd, and u8_SPqcd.

write()

bool grk::Quantizer::write ( t1_t2::IStreamWriter * stream )

virtual

Reimplemented in grk::ojph::QuantizerOJPH.

Member Data Documentation

[union]

union { ... } grk::Quantizer

isReversible

bool grk::Quantizer::isReversible

protected

Referenced by grk::ojph::QuantizerOJPH::generate(), generate(), pull(), push(), Quantizer(), and grk::ojph::QuantizerOJPH::write().

num_decomps

uint32_t grk::Quantizer::num_decomps

protected

Referenced by grk::ojph::QuantizerOJPH::generate(), generate(), grk::ojph::QuantizerOJPH::get_MAGBp(), pull(), push(), Quantizer(), grk::ojph::QuantizerOJPH::set_irrev_quant(), and grk::ojph::QuantizerOJPH::set_rev_quant().

Sqcd

uint8_t grk::Quantizer::Sqcd

protected

Referenced by grk::ojph::QuantizerOJPH::get_MAGBp(), get_num_guard_bits(), and Quantizer().

u16_SPqcd

uint16_t grk::Quantizer::u16_SPqcd[97]

Referenced by generate(), grk::ojph::QuantizerOJPH::get_MAGBp(), pull(), push(), Quantizer(), and grk::ojph::QuantizerOJPH::set_irrev_quant().

u8_SPqcd

uint8_t grk::Quantizer::u8_SPqcd[97]

Referenced by generate(), grk::ojph::QuantizerOJPH::get_MAGBp(), pull(), push(), Quantizer(), and grk::ojph::QuantizerOJPH::set_rev_quant().

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

• Quantizer.h
• Quantizer.cpp