mp3imdct.c 文件参考

#include "mp3coder.h"
#include "mp3assembly.h"

函数
static _XIF_ void	AntiAlias (int *x, int nBfly)
static _XIF_ void	WinPrevious (int *xPrev, int *xPrevWin, int btPrev)
static _XIF_ int	FreqInvertRescale (int *y, int *xPrev, int blockIdx, int es)
static _XIF_ void	idct9 (int *x)
static _XIF_ int	IMDCT36 (int *xCurr, int *xPrev, int *y, int btCurr, int btPrev, int blockIdx, int gb)
static _XIF_ void	imdct12 (int *x, int *out)
static _XIF_ int	IMDCT12x3 (int *xCurr, int *xPrev, int *y, int btPrev, int blockIdx, int gb)
static _XIF_ int	HybridTransform (int *xCurr, int *xPrev, int y[18][32], SideInfoSub *sis, BlockCount *bc)
_XIF_ int	IMDCT (MP3DecInfo *mp3DecInfo, int gr, int ch)

变量
static _DIF_ const int	c9_0 = 0x6ed9eba1
static _DIF_ const int	c9_1 = 0x620dbe8b
static _DIF_ const int	c9_2 = 0x163a1a7e
static _DIF_ const int	c9_3 = 0x5246dd49
static _DIF_ const int	c9_4 = 0x7e0e2e32
static _DIF_ const int	c18 [9]
static _DIF_ const int	fastWin36 [18]
static _DIF_ const int	c3_0 = 0x6ed9eba1
static _DIF_ const int	c6 [3] = { 0x7ba3751d, 0x5a82799a, 0x2120fb83 }

函数说明

AntiAlias()

static _XIF_ void AntiAlias ( int *  x, int  nBfly  )

static

FreqInvertRescale()

static _XIF_ int FreqInvertRescale ( int *  y, int *  xPrev, int  blockIdx, int  es  )

static

HybridTransform()

static _XIF_ int HybridTransform ( int *  xCurr, int *  xPrev, int  y[18][32], SideInfoSub *  sis, BlockCount *  bc  )

static

idct9()

static _XIF_ void idct9 ( int *  x )

static

IMDCT()

_XIF_ int IMDCT	(	MP3DecInfo *	mp3DecInfo,
		int	gr,
		int	ch
	)

imdct12()

static _XIF_ void imdct12 ( int *  x, int *  out  )

static

IMDCT12x3()

static _XIF_ int IMDCT12x3 ( int *  xCurr, int *  xPrev, int *  y, int  btPrev, int  blockIdx, int  gb  )

static

IMDCT36()

static _XIF_ int IMDCT36 ( int *  xCurr, int *  xPrev, int *  y, int  btCurr, int  btPrev, int  blockIdx, int  gb  )

static

WinPrevious()

static _XIF_ void WinPrevious ( int *  xPrev, int *  xPrevWin, int  btPrev  )

static

变量说明

c18

_DIF_ const int c18[9]

static

初始值:

= {
    0x7f834ed0, 0x7ba3751d, 0x7401e4c1, 0x68d9f964, 0x5a82799a, 0x496af3e2, 0x36185aee, 0x2120fb83, 0x0b27eb5c, 
}

c3_0

_DIF_ const int c3_0 = 0x6ed9eba1

static

c6

_DIF_ const int c6[3] = { 0x7ba3751d, 0x5a82799a, 0x2120fb83 }

static

c9_0

_DIF_ const int c9_0 = 0x6ed9eba1

static

c9_1

_DIF_ const int c9_1 = 0x620dbe8b

static

c9_2

_DIF_ const int c9_2 = 0x163a1a7e

static

c9_3

_DIF_ const int c9_3 = 0x5246dd49

static

c9_4

_DIF_ const int c9_4 = 0x7e0e2e32

static

fastWin36

_DIF_ const int fastWin36[18]

static

初始值:

= {
    0x42aace8b, 0xc2e92724, 0x47311c28, 0xc95f619a, 0x4a868feb, 0xd0859d8c,
    0x4c913b51, 0xd8243ea0, 0x4d413ccc, 0xe0000000, 0x4c913b51, 0xe7dbc161,
    0x4a868feb, 0xef7a6275, 0x47311c28, 0xf6a09e67, 0x42aace8b, 0xfd16d8dd,
}