aactns.c 文件参考

#include "aaccoder.h"
#include "aacassembly.h"

宏定义
#define	FBITS_LPC_COEFS   20

函数
static void	DecodeLPCCoefs (int order, int res, signed char *filtCoef, int *a, int *b)
static int	FilterRegion (int size, int dir, int order, int *audioCoef, int *a, int *hist)
int	TNSFilter (AACDecInfo *aacDecInfo, int ch)

变量
static const int	invQuant3 [16]
static const int	invQuant4 [16]

宏定义说明

FBITS_LPC_COEFS

#define FBITS_LPC_COEFS   20

函数说明

DecodeLPCCoefs()

static void DecodeLPCCoefs ( int  order, int  res, signed char *  filtCoef, int *  a, int *  b  )

static

FilterRegion()

static int FilterRegion ( int  size, int  dir, int  order, int *  audioCoef, int *  a, int *  hist  )

static

TNSFilter()

int TNSFilter	(	AACDecInfo *	aacDecInfo,
		int	ch
	)

变量说明

invQuant3

const int invQuant3[16]

static

初始值:

= {
    0x00000000, 0xc8767f65, 0x9becf22c, 0x83358feb, 0x83358feb, 0x9becf22c, 0xc8767f65, 0x00000000,
    0x2bc750e9, 0x5246dd49, 0x6ed9eba1, 0x7e0e2e32, 0x7e0e2e32, 0x6ed9eba1, 0x5246dd49, 0x2bc750e9,
}

invQuant4

const int invQuant4[16]

static

初始值:

= {
    0x00000000, 0xe5632654, 0xcbf00dbe, 0xb4c373ee, 0xa0e0a15f, 0x9126145f, 0x8643c7b3, 0x80b381ac,
    0x7f7437ad, 0x7b1d1a49, 0x7294b5f2, 0x66256db2, 0x563ba8aa, 0x4362210e, 0x2e3d2abb, 0x17851aad,
}