src/quantizer.c File Reference

#include <stdarg.h>
#include <it/types.h>
#include <it/vec.h>
#include <it/math.h>
#include <it/quantizer.h>
#include <it/io.h>

Define Documentation

#define gray_to_bin ( x ) ((x) ^ (x >> 1))

Definition at line 384 of file quantizer.c.

Referenced by it_instanciate().

Function Documentation

it_function ( lloyd_max_distortion )

Definition at line 561 of file quantizer.c.

it_function_args ( lloyd_max_distortion )

Definition at line 554 of file quantizer.c.

static vec scalar_quantizer_dequantize	(	it_quantizer_t *	it_this,
		ivec	q
	)			`[static]`

Definition at line 237 of file quantizer.c.

References IT_SCALAR_QUANTIZER, it_scalar_quantizer_scalar_dequantize, ivec_length(), and vec_new().

Referenced by it_instanciate().

static void scalar_quantizer_destructor ( it_object_t * it_this ) [static]

Definition at line 113 of file quantizer.c.

References _scalar_quantizer_::codebook, _scalar_quantizer_::it_overloaded(), IT_SCALAR_QUANTIZER, and vec_delete().

Referenced by it_instanciate().

static unsigned int scalar_quantizer_get_cardinal ( it_quantizer_t * it_this ) [static]

Definition at line 251 of file quantizer.c.

References IT_SCALAR_QUANTIZER.

Referenced by it_instanciate().

static vec scalar_quantizer_get_codebook_range	(	it_scalar_quantizer_t *	q,
		int	start,
		int	end
	)			`[static]`

Definition at line 124 of file quantizer.c.

References _scalar_quantizer_::codebook, _scalar_quantizer_::imax, _scalar_quantizer_::imin, and vec_get_subvector().

Referenced by it_instanciate().

static void scalar_quantizer_get_index_range	(	it_scalar_quantizer_t *	q,
		int *	_imin,
		int *	_imax
	)			`[static]`

Definition at line 134 of file quantizer.c.

References _scalar_quantizer_::imax, and _scalar_quantizer_::imin.

Referenced by it_instanciate().

static ivec scalar_quantizer_quantize	(	it_quantizer_t *	it_this,
		vec	v
	)			`[static]`

Definition at line 223 of file quantizer.c.

References IT_SCALAR_QUANTIZER, it_scalar_quantizer_scalar_quantize, ivec_new(), and vec_length().

Referenced by it_instanciate().

static double scalar_quantizer_scalar_dequantize	(	it_scalar_quantizer_t *	it_this,
		int	q
	)			`[static]`

Definition at line 197 of file quantizer.c.

References _scalar_quantizer_::codebook, and _scalar_quantizer_::first.

Referenced by it_instanciate().

static int scalar_quantizer_scalar_quantize	(	it_scalar_quantizer_t *	q,
		double	v
	)			`[static]`

Definition at line 165 of file quantizer.c.

References _scalar_quantizer_::codebook, _scalar_quantizer_::first, _scalar_quantizer_::imax, and _scalar_quantizer_::imin.

Referenced by it_instanciate().

static void scalar_quantizer_set_codebook	(	it_scalar_quantizer_t *	it_this,
		vec	codebook,
		int	first
	)			`[static]`

Definition at line 205 of file quantizer.c.

References _scalar_quantizer_::codebook, _scalar_quantizer_::first, it_scalar_quantizer_set_index_range, vec_clone(), vec_length(), and vec_sort().

Referenced by it_instanciate().

static void scalar_quantizer_set_index_range	(	it_scalar_quantizer_t *	q,
		int	_imin,
		int	_imax
	)			`[static]`

Definition at line 141 of file quantizer.c.

References _scalar_quantizer_::codebook, _scalar_quantizer_::first, _scalar_quantizer_::imax, _scalar_quantizer_::imin, and vec_length().

Referenced by it_instanciate().

static vec trellis_coded_quantizer_dequantize	(	it_quantizer_t *	it_this,
		ivec	q
	)			`[static]`

Definition at line 505 of file quantizer.c.

References _trellis_coded_quantizer_::code, _trellis_coded_quantizer_::coset_quantizers, it_cc_encode_symbolic, it_dequantize, IT_TRELLIS_CODED_QUANTIZER, ivec_delete(), ivec_length(), ivec_new(), and vec_new().

Referenced by it_instanciate().

static void trellis_coded_quantizer_destructor ( it_object_t * it_this ) [static]

Definition at line 439 of file quantizer.c.

References _trellis_coded_quantizer_::code, _trellis_coded_quantizer_::coset_quantizers, it_delete, _trellis_coded_quantizer_::it_overloaded(), IT_TRELLIS_CODED_QUANTIZER, and _convolutional_code_::n.

Referenced by it_instanciate().

static unsigned int trellis_coded_quantizer_get_cardinal ( it_quantizer_t * it_this ) [static]

Definition at line 539 of file quantizer.c.

References _trellis_coded_quantizer_::code, _trellis_coded_quantizer_::coset_quantizers, it_quantizer_get_cardinal, IT_TRELLIS_CODED_QUANTIZER, and _convolutional_code_::k.

Referenced by it_instanciate().

static ivec trellis_coded_quantizer_quantize	(	it_quantizer_t *	it_this,
		vec	v
	)			`[static]`

Definition at line 456 of file quantizer.c.

References _trellis_coded_quantizer_::code, _trellis_coded_quantizer_::coset_quantizers, imat_delete(), imat_new(), it_cc_encode_symbolic, it_dequantize, it_quantize, IT_TRELLIS_CODED_QUANTIZER, it_viterbi_decode_symbolic(), ivec_delete(), ivec_new(), mat_delete(), mat_new(), _convolutional_code_::n_labels, and vec_length().

Referenced by it_instanciate().

static vec uniform_quantizer_get_codebook_range	(	it_scalar_quantizer_t *	it_this,
		int	s,
		int	e
	)			`[static]`

Definition at line 334 of file quantizer.c.

References _scalar_quantizer_::codebook, _scalar_quantizer_::imax, _scalar_quantizer_::imin, it_scalar_quantizer_get_codebook_range, it_scalar_quantizer_scalar_dequantize, and vec_new().

Referenced by it_instanciate().

static double uniform_quantizer_scalar_dequantize	(	it_scalar_quantizer_t *	it_this,
		int	q
	)			`[static]`

Definition at line 317 of file quantizer.c.

References it_quantizer_get_center, it_quantizer_get_deadzone_step, and it_quantizer_get_step.

Referenced by it_instanciate().

static int uniform_quantizer_scalar_quantize	(	it_scalar_quantizer_t *	it_this,
		double	v
	)			`[static]`

Definition at line 292 of file quantizer.c.

References _scalar_quantizer_::imax, _scalar_quantizer_::imin, it_quantizer_get_center, it_quantizer_get_deadzone_step, it_quantizer_get_step, IT_UNIFORM_QUANTIZER, and min().

Referenced by it_instanciate().

static void uniform_quantizer_set_codebook	(	it_scalar_quantizer_t *	it_this,
		vec	codebook,
		int	first
	)			`[static]`

Definition at line 374 of file quantizer.c.

Referenced by it_instanciate().

static void uniform_quantizer_set_index_range	(	it_scalar_quantizer_t *	q,
		int	_imin,
		int	_imax
	)			`[static]`

Definition at line 357 of file quantizer.c.

References _scalar_quantizer_::imax, _scalar_quantizer_::imin, it_dequantize, and IT_UNIFORM_QUANTIZER.

Referenced by it_instanciate().


Defines
#define	gray_to_bin(x) ((x) ^ (x >> 1))
Functions
static void	scalar_quantizer_destructor (it_object_t *it_this)
static vec	scalar_quantizer_get_codebook_range (it_scalar_quantizer_t *q, int start, int end)
static void	scalar_quantizer_get_index_range (it_scalar_quantizer_t q, int _imin, int *_imax)
static void	scalar_quantizer_set_index_range (it_scalar_quantizer_t *q, int _imin, int _imax)
static int	scalar_quantizer_scalar_quantize (it_scalar_quantizer_t *q, double v)
static double	scalar_quantizer_scalar_dequantize (it_scalar_quantizer_t *it_this, int q)
static void	scalar_quantizer_set_codebook (it_scalar_quantizer_t *it_this, vec codebook, int first)
static ivec	scalar_quantizer_quantize (it_quantizer_t *it_this, vec v)
static vec	scalar_quantizer_dequantize (it_quantizer_t *it_this, ivec q)
static unsigned int	scalar_quantizer_get_cardinal (it_quantizer_t *it_this)
static int	uniform_quantizer_scalar_quantize (it_scalar_quantizer_t *it_this, double v)
static double	uniform_quantizer_scalar_dequantize (it_scalar_quantizer_t *it_this, int q)
static vec	uniform_quantizer_get_codebook_range (it_scalar_quantizer_t *it_this, int s, int e)
static void	uniform_quantizer_set_index_range (it_scalar_quantizer_t *q, int _imin, int _imax)
static void	uniform_quantizer_set_codebook (it_scalar_quantizer_t *it_this, vec codebook, int first)
static void	trellis_coded_quantizer_destructor (it_object_t *it_this)
static ivec	trellis_coded_quantizer_quantize (it_quantizer_t *it_this, vec v)
static vec	trellis_coded_quantizer_dequantize (it_quantizer_t *it_this, ivec q)
static unsigned int	trellis_coded_quantizer_get_cardinal (it_quantizer_t *it_this)
	it_instanciate (it_scalar_quantizer_t)
	it_instanciate (it_uniform_quantizer_t)
	it_instanciate (it_trellis_coded_quantizer_t)
	it_function_args (lloyd_max_distortion)
	it_function (lloyd_max_distortion)
vec	lloyd_max (it_function_t function, it_args_t args, double a, double b, int N)
imat	__it_quantize_mat (it_quantizer_t *q, mat m)
mat	__it_dequantize_mat (it_quantizer_t *q, imat m)

src/quantizer.c File Reference

Defines

Functions

Define Documentation

Function Documentation