codebook.c File Reference

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

Go to the source code of this file.

Functions
static ogg_uint32_t	bitreverse (ogg_uint32_t x)
STIN long	decode_packed_entry_number (codebook *book, oggpack_buffer *b)
long	vorbis_book_decode (codebook *book, oggpack_buffer *b)
long	vorbis_book_decodev_add (codebook *book, float *a, oggpack_buffer *b, int n)
long	vorbis_book_decodev_set (codebook *book, float *a, oggpack_buffer *b, int n)
long	vorbis_book_decodevs_add (codebook *book, float *a, oggpack_buffer *b, int n)
long	vorbis_book_decodevv_add (codebook *book, float **a, long offset, int ch, oggpack_buffer *b, int n)
int	vorbis_book_encode (codebook *book, int a, oggpack_buffer *b)
int	vorbis_staticbook_pack (const static_codebook *c, oggpack_buffer *opb)
static_codebook *	vorbis_staticbook_unpack (oggpack_buffer *opb)

Function Documentation

static ogg_uint32_t bitreverse ( ogg_uint32_t  x )

static

Definition at line 288 of file codebook.c.

Referenced by decode_packed_entry_number().

STIN long decode_packed_entry_number	(	codebook *	book,
		oggpack_buffer *	b
	)

Definition at line 296 of file codebook.c.

References bitreverse(), codebook::codelist, codebook::dec_codelengths, codebook::dec_firsttable, codebook::dec_firsttablen, codebook::dec_maxlength, cordic::hi, cordic::lo, oggpack_adv(), oggpack_look(), and codebook::used_entries.

Referenced by vorbis_book_decode(), vorbis_book_decodev_add(), vorbis_book_decodev_set(), vorbis_book_decodevs_add(), and vorbis_book_decodevv_add().

long vorbis_book_decode	(	codebook *	book,
		oggpack_buffer *	b
	)

Definition at line 358 of file codebook.c.

References codebook::dec_index, decode_packed_entry_number(), and codebook::used_entries.

Referenced by _01inverse(), floor1_inverse1(), and res2_inverse().

long vorbis_book_decodev_add	(	codebook *	book,
		float *	a,
		oggpack_buffer *	b,
		int	n
	)

Definition at line 389 of file codebook.c.

References decode_packed_entry_number(), codebook::dim, i, j, codebook::used_entries, and codebook::valuelist.

Referenced by res1_inverse().

long vorbis_book_decodev_set	(	codebook *	book,
		float *	a,
		oggpack_buffer *	b,
		int	n
	)

Definition at line 434 of file codebook.c.

References decode_packed_entry_number(), codebook::dim, i, j, codebook::used_entries, and codebook::valuelist.

Referenced by floor0_inverse1().

long vorbis_book_decodevs_add	(	codebook *	book,
		float *	a,
		oggpack_buffer *	b,
		int	n
	)

Definition at line 370 of file codebook.c.

References decode_packed_entry_number(), codebook::dim, i, j, codebook::used_entries, and codebook::valuelist.

Referenced by res0_inverse().

long vorbis_book_decodevv_add	(	codebook *	book,
		float **	a,
		long	offset,
		int	ch,
		oggpack_buffer *	b,
		int	n
	)

Definition at line 457 of file codebook.c.

References decode_packed_entry_number(), codebook::dim, i, j, codebook::used_entries, and codebook::valuelist.

Referenced by res2_inverse().

int vorbis_book_encode	(	codebook *	book,
		int	a,
		oggpack_buffer *	b
	)

Definition at line 274 of file codebook.c.

References codebook::c, codebook::codelist, static_codebook::entries, static_codebook::lengthlist, and oggpack_write().

Referenced by _01forward(), _encodepart(), and floor1_encode().

int vorbis_staticbook_pack	(	const static_codebook *	c,
		oggpack_buffer *	opb
	)

Definition at line 30 of file codebook.c.

References _book_maptype1_quantvals(), _ilog(), static_codebook::dim, static_codebook::entries, i, j, static_codebook::lengthlist, static_codebook::maptype, oggpack_write(), static_codebook::q_delta, static_codebook::q_min, static_codebook::q_quant, static_codebook::q_sequencep, and static_codebook::quantlist.

Referenced by _vorbis_pack_books().

static_codebook* vorbis_staticbook_unpack

(

oggpack_buffer *

opb

)

Definition at line 149 of file codebook.c.

References _book_maptype1_quantvals(), _ilog(), _ogg_calloc, _ogg_malloc, static_codebook::allocedp, static_codebook::dim, static_codebook::entries, i, j, static_codebook::lengthlist, static_codebook::maptype, NULL, oggpack_bytes(), oggpack_read(), static_codebook::q_delta, static_codebook::q_min, static_codebook::q_quant, static_codebook::q_sequencep, static_codebook::quantlist, oggpack_buffer::storage, and vorbis_staticbook_destroy().

Referenced by _vorbis_unpack_books().