sharedbook.c File Reference

#include <stdlib.h>
#include <math.h>
#include <string.h>
#include <ogg/ogg.h>
#include "os.h"
#include "misc.h"
#include "vorbis/codec.h"
#include "codebook.h"
#include "scales.h"

Go to the source code of this file.

Macros
#define	VQ_FEXP   10
#define	VQ_FEXP_BIAS   768 /* bias toward values smaller than 1. */
#define	VQ_FMAN   21

Functions
long	_book_maptype1_quantvals (const static_codebook *b)
float *	_book_unquantize (const static_codebook *b, int n, int *sparsemap)
long	_float32_pack (float val)
float	_float32_unpack (long val)
int	_ilog (unsigned int v)
ogg_uint32_t *	_make_words (long *l, long n, long sparsecount)
static ogg_uint32_t	bitreverse (ogg_uint32_t x)
static int	sort32a (const void *a, const void *b)
void	vorbis_book_clear (codebook *b)
long	vorbis_book_codelen (codebook *book, int entry)
long	vorbis_book_codeword (codebook *book, int entry)
int	vorbis_book_init_decode (codebook *c, const static_codebook *s)
int	vorbis_book_init_encode (codebook *c, const static_codebook *s)
void	vorbis_staticbook_destroy (static_codebook *b)

Macro Definition Documentation

#define VQ_FEXP   10

Definition at line 42 of file sharedbook.c.

#define VQ_FEXP_BIAS   768 /* bias toward values smaller than 1. */

Definition at line 44 of file sharedbook.c.

Referenced by _float32_pack(), and _float32_unpack().

#define VQ_FMAN   21

Definition at line 43 of file sharedbook.c.

Referenced by _float32_pack(), and _float32_unpack().

Function Documentation

long _book_maptype1_quantvals

(

const static_codebook *

b

)

Definition at line 163 of file sharedbook.c.

References static_codebook::dim, static_codebook::entries, entries, floor(), and i.

Referenced by _book_unquantize(), codebook_load(), main(), vorbis_book_init_encode(), vorbis_staticbook_pack(), vorbis_staticbook_unpack(), and write_codebook().

float* _book_unquantize	(	const static_codebook *	b,
		int	n,
		int *	sparsemap
	)

Definition at line 196 of file sharedbook.c.

References _book_maptype1_quantvals(), _float32_unpack(), _ogg_calloc, static_codebook::dim, static_codebook::entries, fabs(), j, k, static_codebook::lengthlist, static_codebook::maptype, NULL, static_codebook::q_delta, static_codebook::q_min, static_codebook::q_sequencep, and static_codebook::quantlist.

Referenced by codebook_load(), and vorbis_book_init_decode().

long _float32_pack

(

float

val

)

Definition at line 47 of file sharedbook.c.

References floor(), sign, VQ_FEXP_BIAS, and VQ_FMAN.

Referenced by main(), and vqgen_quantize().

float _float32_unpack

(

long

val

)

Definition at line 62 of file sharedbook.c.

References sign, VQ_FEXP_BIAS, and VQ_FMAN.

Referenced by _book_unquantize(), main(), vorbis_book_init_encode(), vqgen_quantize(), and vqgen_unquantize().

int _ilog

(

unsigned int

v

)

Definition at line 29 of file sharedbook.c.

References ret.

Referenced by floor0_inverse1(), vorbis_book_init_decode(), vorbis_staticbook_pack(), and vorbis_staticbook_unpack().

ogg_uint32_t* _make_words	(	long *	l,
		long	n,
		long	sparsecount
	)

Definition at line 73 of file sharedbook.c.

References _ogg_free, _ogg_malloc, i, j, memset, and NULL.

Referenced by vorbis_book_init_decode(), and vorbis_book_init_encode().

static ogg_uint32_t bitreverse ( ogg_uint32_t  x )

static

Definition at line 299 of file sharedbook.c.

Referenced by vorbis_book_init_decode().

static int sort32a ( const void *  a, const void *  b  )

static

Definition at line 307 of file sharedbook.c.

Referenced by vorbis_book_init_decode().

void vorbis_book_clear

(

codebook *

b

)

Definition at line 270 of file sharedbook.c.

References _ogg_free, codebook::codelist, codebook::dec_codelengths, codebook::dec_firsttable, codebook::dec_index, memset, and codebook::valuelist.

Referenced by vorbis_book_init_decode(), and vorbis_info_clear().

long vorbis_book_codelen	(	codebook *	book,
		int	entry
	)

Definition at line 437 of file sharedbook.c.

References codebook::c, and static_codebook::lengthlist.

Referenced by process_one().

long vorbis_book_codeword	(	codebook *	book,
		int	entry
	)

Definition at line 430 of file sharedbook.c.

References codebook::c, and codebook::codelist.

int vorbis_book_init_decode	(	codebook *	c,
		const static_codebook *	s
	)

Definition at line 313 of file sharedbook.c.

References _book_unquantize(), _ilog(), _make_words(), _ogg_calloc, _ogg_free, _ogg_malloc, bitreverse(), codebook::codelist, codebook::dec_codelengths, codebook::dec_firsttable, codebook::dec_firsttablen, codebook::dec_index, codebook::dec_maxlength, static_codebook::dim, codebook::dim, static_codebook::entries, codebook::entries, cordic::hi, i, j, static_codebook::lengthlist, cordic::lo, memset, NULL, qsort(), sort32a(), codebook::used_entries, codebook::valuelist, and vorbis_book_clear().

Referenced by _vds_shared_init().

int vorbis_book_init_encode	(	codebook *	c,
		const static_codebook *	s
	)

Definition at line 283 of file sharedbook.c.

References _book_maptype1_quantvals(), _float32_unpack(), _make_words(), codebook::c, codebook::codelist, codebook::delta, static_codebook::dim, codebook::dim, static_codebook::entries, codebook::entries, int, static_codebook::lengthlist, memset, codebook::minval, static_codebook::q_delta, static_codebook::q_min, codebook::quantvals, and codebook::used_entries.

Referenced by _vds_shared_init(), and codebook_load().

void vorbis_staticbook_destroy

(

static_codebook *

b

)

Definition at line 261 of file sharedbook.c.

References _ogg_free, static_codebook::allocedp, static_codebook::lengthlist, memset, and static_codebook::quantlist.

Referenced by _vds_shared_init(), vorbis_info_clear(), and vorbis_staticbook_unpack().