floor1.c File Reference

#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "../../ogg.h"
#include "../../codec.h"
#include "codec_internal.h"
#include "registry.h"
#include "codebook.h"
#include "misc.h"
#include "scales.h"
#include <stdio.h>

Classes
struct	lsfit_acc

Macros
#define	floor1_rangedB   140 /* floor 1 fixed at -140dB to 0dB range */

Typedefs
typedef struct lsfit_acc	lsfit_acc

Functions
static void	floor1_free_info (vorbis_info_floor *i)
static void	floor1_free_look (vorbis_look_floor *i)
static void	floor1_pack (vorbis_info_floor *i, oggpack_buffer *opb)
static int	icomp (const void *a, const void *b)
static vorbis_info_floor *	floor1_unpack (vorbis_info *vi, oggpack_buffer *opb)
static vorbis_look_floor *	floor1_look (vorbis_dsp_state *, vorbis_info_floor *in)
static int	render_point (int x0, int x1, int y0, int y1, int x)
static int	vorbis_dBquant (const float *x)
static void	render_line (int n, int x0, int x1, int y0, int y1, float *d)
static void	render_line0 (int n, int x0, int x1, int y0, int y1, int *d)
static int	accumulate_fit (const float *flr, const float *mdct, int x0, int x1, lsfit_acc *a, int n, vorbis_info_floor1 *info)
static int	fit_line (lsfit_acc *a, int fits, int *y0, int *y1, vorbis_info_floor1 *info)
static int	inspect_error (int x0, int x1, int y0, int y1, const float *mask, const float *mdct, vorbis_info_floor1 *info)
static int	post_Y (int *A, int *B, int pos)
int *	floor1_fit (vorbis_block *vb, vorbis_look_floor1 *look, const float *logmdct, const float *logmask)
int *	floor1_interpolate_fit (vorbis_block *vb, vorbis_look_floor1 *look, int *A, int *B, int del)
int	floor1_encode (oggpack_buffer *opb, vorbis_block *vb, vorbis_look_floor1 *look, int *post, int *ilogmask)
static void *	floor1_inverse1 (vorbis_block *vb, vorbis_look_floor *in)
static int	floor1_inverse2 (vorbis_block *vb, vorbis_look_floor *in, void *memo, float *out)

Variables
static const float	FLOOR1_fromdB_LOOKUP [256]
const vorbis_func_floor	floor1_exportbundle

Macro Definition Documentation

floor1_rangedB

#define floor1_rangedB   140 /* floor 1 fixed at -140dB to 0dB range */

Typedef Documentation

lsfit_acc

typedef struct lsfit_acc lsfit_acc

Function Documentation

accumulate_fit()

int accumulate_fit ( const float * flr, const float * mdct, int x0, int x1, lsfit_acc * a, int n, vorbis_info_floor1 * info )

static

fit_line()

int fit_line ( lsfit_acc * a, int fits, int * y0, int * y1, vorbis_info_floor1 * info )

static

floor1_encode()

int floor1_encode	(	oggpack_buffer *	opb,
		vorbis_block *	vb,
		vorbis_look_floor1 *	look,
		int *	post,
		int *	ilogmask )

floor1_fit()

int * floor1_fit	(	vorbis_block *	vb,
		vorbis_look_floor1 *	look,
		const float *	logmdct,
		const float *	logmask )

floor1_free_info()

void floor1_free_info ( vorbis_info_floor * i )

static

floor1_free_look()

void floor1_free_look ( vorbis_look_floor * i )

static

floor1_interpolate_fit()

int * floor1_interpolate_fit	(	vorbis_block *	vb,
		vorbis_look_floor1 *	look,
		int *	A,
		int *	B,
		int	del )

floor1_inverse1()

void * floor1_inverse1 ( vorbis_block * vb, vorbis_look_floor * in )

static

floor1_inverse2()

int floor1_inverse2 ( vorbis_block * vb, vorbis_look_floor * in, void * memo, float * out )

static

floor1_look()

vorbis_look_floor * floor1_look ( vorbis_dsp_state * , vorbis_info_floor * in )

static

floor1_pack()

void floor1_pack ( vorbis_info_floor * i, oggpack_buffer * opb )

static

floor1_unpack()

vorbis_info_floor * floor1_unpack ( vorbis_info * vi, oggpack_buffer * opb )

static

icomp()

int icomp ( const void * a, const void * b )

static

inspect_error()

int inspect_error ( int x0, int x1, int y0, int y1, const float * mask, const float * mdct, vorbis_info_floor1 * info )

static

post_Y()

int post_Y ( int * A, int * B, int pos )

static

render_line()

void render_line ( int n, int x0, int x1, int y0, int y1, float * d )

static

render_line0()

void render_line0 ( int n, int x0, int x1, int y0, int y1, int * d )

static

render_point()

int render_point ( int x0, int x1, int y0, int y1, int x )

static

vorbis_dBquant()

int vorbis_dBquant ( const float * x )

static

Variable Documentation

floor1_exportbundle

const vorbis_func_floor floor1_exportbundle

Initial value:

                                           ={
  &floor1_pack,&floor1_unpack,&floor1_look,&floor1_free_info,
  &floor1_free_look,&floor1_inverse1,&floor1_inverse2
}

FLOOR1_fromdB_LOOKUP

const float FLOOR1_fromdB_LOOKUP[256]

static