aacsbrhuff.c 文件参考

#include "aacsbr.h"
#include "aacassembly.h"

函数
static int	DecodeHuffmanScalar (const signed short *huffTab, const HuffInfo *huffTabInfo, unsigned int bitBuf, signed int *val)
static int	DecodeOneSymbol (BitStreamInfo *bsi, int huffTabIndex)
static int	DequantizeEnvelope (int nBands, int ampRes, signed char *envQuant, int *envDequant)
static void	DequantizeNoise (int nBands, signed char *noiseQuant, int *noiseDequant)
void STATNAME()	DecodeSBREnvelope (BitStreamInfo *bsi, PSInfoSBR *psi, SBRGrid *sbrGrid, SBRFreq *sbrFreq, SBRChan *sbrChan, int ch)
void STATNAME()	DecodeSBRNoise (BitStreamInfo *bsi, PSInfoSBR *psi, SBRGrid *sbrGrid, SBRFreq *sbrFreq, SBRChan *sbrChan, int ch)
void STATNAME()	UncoupleSBREnvelope (PSInfoSBR *psi, SBRGrid *sbrGrid, SBRFreq *sbrFreq, SBRChan *sbrChanR)
void STATNAME()	UncoupleSBRNoise (PSInfoSBR *psi, SBRGrid *sbrGrid, SBRFreq *sbrFreq, SBRChan *sbrChanR)

变量
static const int	envDQTab [2] = {0x20000000, 0x2d413ccc}
static const int	dqTabCouple [25]

函数说明

DecodeHuffmanScalar()

static int DecodeHuffmanScalar ( const signed short *  huffTab, const HuffInfo *  huffTabInfo, unsigned int  bitBuf, signed int *  val  )

static

DecodeOneSymbol()

static int DecodeOneSymbol ( BitStreamInfo *  bsi, int  huffTabIndex  )

static

DecodeSBREnvelope()

void STATNAME() DecodeSBREnvelope	(	BitStreamInfo *	bsi,
		PSInfoSBR *	psi,
		SBRGrid *	sbrGrid,
		SBRFreq *	sbrFreq,
		SBRChan *	sbrChan,
		int	ch
	)

DecodeSBRNoise()

void STATNAME() DecodeSBRNoise	(	BitStreamInfo *	bsi,
		PSInfoSBR *	psi,
		SBRGrid *	sbrGrid,
		SBRFreq *	sbrFreq,
		SBRChan *	sbrChan,
		int	ch
	)

DequantizeEnvelope()

static int DequantizeEnvelope ( int  nBands, int  ampRes, signed char *  envQuant, int *  envDequant  )

static

DequantizeNoise()

static void DequantizeNoise ( int  nBands, signed char *  noiseQuant, int *  noiseDequant  )

static

UncoupleSBREnvelope()

void STATNAME() UncoupleSBREnvelope	(	PSInfoSBR *	psi,
		SBRGrid *	sbrGrid,
		SBRFreq *	sbrFreq,
		SBRChan *	sbrChanR
	)

UncoupleSBRNoise()

void STATNAME() UncoupleSBRNoise	(	PSInfoSBR *	psi,
		SBRGrid *	sbrGrid,
		SBRFreq *	sbrFreq,
		SBRChan *	sbrChanR
	)

变量说明

dqTabCouple

const int dqTabCouple[25]

static

初始值:

= {
    0x0007ff80, 0x000ffe00, 0x001ff802, 0x003fe010, 0x007f8080, 0x00fe03f8, 0x01f81f82, 0x03e0f83e, 
    0x07878788, 0x0e38e38e, 0x1999999a, 0x2aaaaaab, 0x40000000, 0x55555555, 0x66666666, 0x71c71c72, 
    0x78787878, 0x7c1f07c2, 0x7e07e07e, 0x7f01fc08, 0x7f807f80, 0x7fc01ff0, 0x7fe007fe, 0x7ff00200, 
    0x7ff80080, 
}

envDQTab

const int envDQTab[2] = {0x20000000, 0x2d413ccc}

static