aaccoder.h 文件参考

#include "aaccommon.h"
#include "aacbitstream.h"

浏览源代码.

结构体
struct	_HuffInfo
struct	_PulseInfo
struct	_TNSInfo
struct	_GainControlInfo
struct	_ICSInfo
struct	_ADTSHeader
struct	_ADIFHeader
struct	_ProgConfigElement
struct	_PSInfoBase

宏定义
#define	ASSERT(x)   /* do nothing */
#define	MAX(a, b)   ((a) > (b) ? (a) : (b))
#define	MIN(a, b)   ((a) < (b) ? (a) : (b))
#define	NWINDOWS_LONG   1
#define	NWINDOWS_SHORT   8
#define	DATA_BUF_SIZE   510 /* max count = 255 + 255 */
#define	FILL_BUF_SIZE   269 /* max count = 15 + 255 - 1*/
#define	ADIF_COPYID_SIZE   9
#define	MAX_COMMENT_BYTES   255
#define	MAX_NUM_FCE   15
#define	MAX_NUM_SCE   15
#define	MAX_NUM_BCE   15
#define	MAX_NUM_LCE   3
#define	MAX_NUM_ADE   7
#define	MAX_NUM_CCE   15
#define	CHAN_ELEM_IS_CPE(x)   (((x) & 0x10) >> 4) /* bit 4 = SCE/CPE flag */
#define	CHAN_ELEM_GET_TAG(x)   (((x) & 0x0f) >> 0) /* bits 3-0 = instance tag */
#define	CHAN_ELEM_SET_CPE(x)   (((x) & 0x01) << 4) /* bit 4 = SCE/CPE flag */
#define	CHAN_ELEM_SET_TAG(x)   (((x) & 0x0f) << 0) /* bits 3-0 = instance tag */
#define	MAX_HUFF_BITS   20
#define	HUFFTAB_SPEC_OFFSET   1
#define	CLIP_2N_SHIFT(y, n)
#define	CLIP_2N(val, n)
#define	SF_DQ_OFFSET   15
#define	FBITS_OUT_DQ   20
#define	FBITS_OUT_DQ_OFF   (FBITS_OUT_DQ - SF_DQ_OFFSET) /* number of fraction bits out of dequant, including 2^15 bias */
#define	FBITS_IN_IMDCT   FBITS_OUT_DQ_OFF /* number of fraction bits into IMDCT */
#define	GBITS_IN_DCT4   4 /* min guard bits in for DCT4 */
#define	FBITS_LOST_DCT4   1 /* number of fraction bits lost (>> out) in DCT-IV */
#define	FBITS_LOST_WND   1 /* number of fraction bits lost (>> out) in synthesis window (neg = gain frac bits) */
#define	FBITS_LOST_IMDCT   (FBITS_LOST_DCT4 + FBITS_LOST_WND)
#define	FBITS_OUT_IMDCT   (FBITS_IN_IMDCT - FBITS_LOST_IMDCT)
#define	NUM_IMDCT_SIZES   2
#define	DecodeProgramConfigElement   STATNAME(DecodeProgramConfigElement)
#define	DecodeHuffmanScalar   STATNAME(DecodeHuffmanScalar)
#define	DecodeSpectrumLong   STATNAME(DecodeSpectrumLong)
#define	DecodeSpectrumShort   STATNAME(DecodeSpectrumShort)
#define	DecodeICSInfo   STATNAME(DecodeICSInfo)
#define	DCT4   STATNAME(DCT4)
#define	R4FFT   STATNAME(R4FFT)
#define	DecWindowOverlapNoClip   STATNAME(DecWindowOverlapNoClip)
#define	DecWindowOverlapLongStartNoClip   STATNAME(DecWindowOverlapLongStartNoClip)
#define	DecWindowOverlapLongStopNoClip   STATNAME(DecWindowOverlapLongStopNoClip)
#define	DecWindowOverlapShortNoClip   STATNAME(DecWindowOverlapShortNoClip)
#define	huffTabSpecInfo   STATNAME(huffTabSpecInfo)
#define	huffTabSpec   STATNAME(huffTabSpec)
#define	huffTabScaleFactInfo   STATNAME(huffTabScaleFactInfo)
#define	huffTabScaleFact   STATNAME(huffTabScaleFact)
#define	cos4sin4tab   STATNAME(cos4sin4tab)
#define	cos4sin4tabOffset   STATNAME(cos4sin4tabOffset)
#define	cos1sin1tab   STATNAME(cos1sin1tab)
#define	sinWindow   STATNAME(sinWindow)
#define	sinWindowOffset   STATNAME(sinWindowOffset)
#define	kbdWindow   STATNAME(kbdWindow)
#define	kbdWindowOffset   STATNAME(kbdWindowOffset)
#define	bitrevtab   STATNAME(bitrevtab)
#define	bitrevtabOffset   STATNAME(bitrevtabOffset)
#define	uniqueIDTab   STATNAME(uniqueIDTab)
#define	twidTabEven   STATNAME(twidTabEven)
#define	twidTabOdd   STATNAME(twidTabOdd)

类型定义
typedef struct _HuffInfo	HuffInfo
typedef struct _PulseInfo	PulseInfo
typedef struct _TNSInfo	TNSInfo
typedef struct _GainControlInfo	GainControlInfo
typedef struct _ICSInfo	ICSInfo
typedef struct _ADTSHeader	ADTSHeader
typedef struct _ADIFHeader	ADIFHeader
typedef struct _ProgConfigElement	ProgConfigElement
typedef struct _PSInfoBase	PSInfoBase

函数
int STATNAME()	DecodeProgramConfigElement (ProgConfigElement *pce, BitStreamInfo *bsi)
int STATNAME()	DecodeHuffmanScalar (const signed short *huffTab, const HuffInfo *huffTabInfo, unsigned int bitBuf, signed int *val)
void STATNAME()	DecodeSpectrumLong (PSInfoBase *psi, BitStreamInfo *bsi, int ch)
void STATNAME()	DecodeSpectrumShort (PSInfoBase *psi, BitStreamInfo *bsi, int ch)
void STATNAME()	DecodeICSInfo (BitStreamInfo *bsi, ICSInfo *icsInfo, int sampRateIdx)
void STATNAME()	DCT4 (int tabidx, int *coef, int gb)
void STATNAME()	R4FFT (int tabidx, int *x)
void STATNAME()	DecWindowOverlapNoClip (int *buf0, int *over0, int *out0, int winTypeCurr, int winTypePrev)
void STATNAME()	DecWindowOverlapLongStartNoClip (int *buf0, int *over0, int *out0, int winTypeCurr, int winTypePrev)
void STATNAME()	DecWindowOverlapLongStopNoClip (int *buf0, int *over0, int *out0, int winTypeCurr, int winTypePrev)
void STATNAME()	DecWindowOverlapShortNoClip (int *buf0, int *over0, int *out0, int winTypeCurr, int winTypePrev)
const HuffInfo	STATNAME (huffTabSpecInfo) [11]
const signed short	STATNAME (huffTabSpec) [1241]
const HuffInfo	STATNAME (huffTabScaleFactInfo)
const signed short	STATNAME (huffTabScaleFact) [121]
const int	STATNAME (cos4sin4tabOffset) [2]
const int	STATNAME (sinWindowOffset) [2]
const int	STATNAME (kbdWindowOffset) [2]
const unsigned char	STATNAME (bitrevtab) [17+129]
const int	STATNAME (bitrevtabOffset) [2]
const int	STATNAME (cos4sin4tab) [128+1024]
const int	STATNAME (cos1sin1tab) [514]
const int	STATNAME (sinWindow) [128+1024]
const int	STATNAME (kbdWindow) [128+1024]
const int	STATNAME (twidTabEven) [4 *6+16 *6+64 *6]
const int	STATNAME (twidTabOdd) [8 *6+32 *6+128 *6]

---

结构体说明

_HuffInfo

struct _HuffInfo

成员变量
unsigned char	count[20]
int	maxBits
int	offset

_PulseInfo

struct _PulseInfo

成员变量
unsigned char	amp[MAX_PULSES]
unsigned char	numPulse
unsigned char	offset[MAX_PULSES]
unsigned char	pulseDataPresent
unsigned char	startSFB

_TNSInfo

struct _TNSInfo

成员变量
signed char	coef[MAX_TNS_COEFS]
unsigned char	coefRes[MAX_TNS_FILTERS]
unsigned char	dir[MAX_TNS_FILTERS]
unsigned char	length[MAX_TNS_FILTERS]
unsigned char	numFilt[MAX_TNS_FILTERS]
unsigned char	order[MAX_TNS_FILTERS]
unsigned char	tnsDataPresent

_GainControlInfo

struct _GainControlInfo

成员变量
unsigned char	adjNum[MAX_GAIN_BANDS][MAX_GAIN_WIN]
unsigned char	alevCode[MAX_GAIN_BANDS][MAX_GAIN_WIN][MAX_GAIN_ADJUST]
unsigned char	alocCode[MAX_GAIN_BANDS][MAX_GAIN_WIN][MAX_GAIN_ADJUST]
unsigned char	gainControlDataPresent
unsigned char	maxBand

_ICSInfo

struct _ICSInfo

成员变量
unsigned char	icsResBit
unsigned char	maxSFB
unsigned char	numWinGroup
unsigned char	predictionUsed[MAX_PRED_SFB]
unsigned char	predictorDataPresent
unsigned char	predictorReset
unsigned char	predictorResetGroupNum
unsigned char	sfGroup
unsigned char	winGroupLen[MAX_WIN_GROUPS]
unsigned char	winSequence
unsigned char	winShape

_ADTSHeader

struct _ADTSHeader

成员变量
int	bufferFull
unsigned char	channelConfig
unsigned char	copyBit
unsigned char	copyStart
int	crcCheckWord
int	frameLength
unsigned char	home
unsigned char	id
unsigned char	layer
unsigned char	numRawDataBlocks
unsigned char	origCopy
unsigned char	privateBit
unsigned char	profile
unsigned char	protectBit
unsigned char	sampRateIdx

_ADIFHeader

struct _ADIFHeader

成员变量
int	bitRate
unsigned char	bsType
int	bufferFull
unsigned char	copyBit
unsigned char	copyID[9]
unsigned char	home
unsigned char	numPCE
unsigned char	origCopy

_ProgConfigElement

struct _ProgConfigElement

成员变量
unsigned char	ade[7]
unsigned char	bce[15]
unsigned char	cce[15]
unsigned char	elemInstTag
unsigned char	fce[15]
unsigned char	lce[3]
unsigned char	matrixMixdown
unsigned char	monoMixdown
unsigned char	numADE
unsigned char	numBCE
unsigned char	numCCE
unsigned char	numFCE
unsigned char	numLCE
unsigned char	numSCE
unsigned char	profile
unsigned char	sampRateIdx
unsigned char	sce[15]
unsigned char	stereoMixdown

_PSInfoBase

struct _PSInfoBase

成员变量
int	coef[MAX_NCHANS_ELEM][AAC_MAX_NSAMPS]
int	commonWin
unsigned char	dataBuf[510]
int	dataCount
ADIFHeader	fhADIF
ADTSHeader	fhADTS
unsigned char	fillBuf[269]
int	fillCount
GainControlInfo	gainControlInfo[MAX_NCHANS_ELEM]
int	gbCurrent[MAX_NCHANS_ELEM]
ICSInfo	icsInfo[MAX_NCHANS_ELEM]
int	intensityUsed[MAX_NCHANS_ELEM]
unsigned char	msMaskBits[MAX_MS_MASK_BYTES]
int	msMaskPresent
int	nChans
int	overlap[AAC_MAX_NCHANS][AAC_MAX_NSAMPS]
ProgConfigElement	pce[MAX_NUM_PCE_ADIF]
int	pnsLastVal
int	pnsUsed[MAX_NCHANS_ELEM]
int	prevWinShape[AAC_MAX_NCHANS]
PulseInfo	pulseInfo[MAX_NCHANS_ELEM]
int	sampRateIdx
short	scaleFactors[MAX_NCHANS_ELEM][MAX_SF_BANDS]
unsigned char	sfbCodeBook[MAX_NCHANS_ELEM][MAX_SF_BANDS]
TNSInfo	tnsInfo[MAX_NCHANS_ELEM]
int	tnsLPCBuf[MAX_TNS_ORDER]
int	tnsWorkBuf[MAX_TNS_ORDER]
int	useImpChanMap

宏定义说明

ADIF_COPYID_SIZE

#define ADIF_COPYID_SIZE   9

ASSERT

#define ASSERT

(

x

)

/* do nothing */

bitrevtab

#define bitrevtab   STATNAME(bitrevtab)

bitrevtabOffset

#define bitrevtabOffset   STATNAME(bitrevtabOffset)

CHAN_ELEM_GET_TAG

#define CHAN_ELEM_GET_TAG

(

x

)

(((x) & 0x0f) >> 0) /* bits 3-0 = instance tag */

CHAN_ELEM_IS_CPE

#define CHAN_ELEM_IS_CPE

(

x

)

(((x) & 0x10) >> 4) /* bit 4 = SCE/CPE flag */

CHAN_ELEM_SET_CPE

#define CHAN_ELEM_SET_CPE

(

x

)

(((x) & 0x01) << 4) /* bit 4 = SCE/CPE flag */

CHAN_ELEM_SET_TAG

#define CHAN_ELEM_SET_TAG

(

x

)

(((x) & 0x0f) << 0) /* bits 3-0 = instance tag */

CLIP_2N

#define CLIP_2N	(		val,
			n
	)

值:

{                               \
        if ((val) >> 31 != (val) >> (n))                \
            (val) = ((val) >> 31) ^ ((1 << (n)) - 1);   \
    }

CLIP_2N_SHIFT

#define CLIP_2N_SHIFT	(		y,
			n
	)

值:

{                   \
        int sign = (y) >> 31;                   \
        if (sign != (y) >> (30 - (n)))  {       \
            (y) = sign ^ (0x3fffffff);          \
        } else {                                \
            (y) = (y) << (n);                   \
        }                                       \
    }

cos1sin1tab

#define cos1sin1tab   STATNAME(cos1sin1tab)

cos4sin4tab

#define cos4sin4tab   STATNAME(cos4sin4tab)

cos4sin4tabOffset

#define cos4sin4tabOffset   STATNAME(cos4sin4tabOffset)

DATA_BUF_SIZE

#define DATA_BUF_SIZE   510 /* max count = 255 + 255 */

DCT4

#define DCT4   STATNAME(DCT4)

DecodeHuffmanScalar

#define DecodeHuffmanScalar   STATNAME(DecodeHuffmanScalar)

DecodeICSInfo

#define DecodeICSInfo   STATNAME(DecodeICSInfo)

DecodeProgramConfigElement

#define DecodeProgramConfigElement   STATNAME(DecodeProgramConfigElement)

DecodeSpectrumLong

#define DecodeSpectrumLong   STATNAME(DecodeSpectrumLong)

DecodeSpectrumShort

#define DecodeSpectrumShort   STATNAME(DecodeSpectrumShort)

DecWindowOverlapLongStartNoClip

#define DecWindowOverlapLongStartNoClip   STATNAME(DecWindowOverlapLongStartNoClip)

DecWindowOverlapLongStopNoClip

#define DecWindowOverlapLongStopNoClip   STATNAME(DecWindowOverlapLongStopNoClip)

DecWindowOverlapNoClip

#define DecWindowOverlapNoClip   STATNAME(DecWindowOverlapNoClip)

DecWindowOverlapShortNoClip

#define DecWindowOverlapShortNoClip   STATNAME(DecWindowOverlapShortNoClip)

FBITS_IN_IMDCT

#define FBITS_IN_IMDCT   FBITS_OUT_DQ_OFF /* number of fraction bits into IMDCT */

FBITS_LOST_DCT4

#define FBITS_LOST_DCT4   1 /* number of fraction bits lost (>> out) in DCT-IV */

FBITS_LOST_IMDCT

#define FBITS_LOST_IMDCT   (FBITS_LOST_DCT4 + FBITS_LOST_WND)

FBITS_LOST_WND

#define FBITS_LOST_WND   1 /* number of fraction bits lost (>> out) in synthesis window (neg = gain frac bits) */

FBITS_OUT_DQ

#define FBITS_OUT_DQ   20

FBITS_OUT_DQ_OFF

#define FBITS_OUT_DQ_OFF   (FBITS_OUT_DQ - SF_DQ_OFFSET) /* number of fraction bits out of dequant, including 2^15 bias */

FBITS_OUT_IMDCT

#define FBITS_OUT_IMDCT   (FBITS_IN_IMDCT - FBITS_LOST_IMDCT)

FILL_BUF_SIZE

#define FILL_BUF_SIZE   269 /* max count = 15 + 255 - 1*/

GBITS_IN_DCT4

#define GBITS_IN_DCT4   4 /* min guard bits in for DCT4 */

HUFFTAB_SPEC_OFFSET

#define HUFFTAB_SPEC_OFFSET   1

huffTabScaleFact

#define huffTabScaleFact   STATNAME(huffTabScaleFact)

huffTabScaleFactInfo

#define huffTabScaleFactInfo   STATNAME(huffTabScaleFactInfo)

huffTabSpec

#define huffTabSpec   STATNAME(huffTabSpec)

huffTabSpecInfo

#define huffTabSpecInfo   STATNAME(huffTabSpecInfo)

kbdWindow

#define kbdWindow   STATNAME(kbdWindow)

kbdWindowOffset

#define kbdWindowOffset   STATNAME(kbdWindowOffset)

MAX

#define MAX	(		a,
			b
	)		((a) > (b) ? (a) : (b))

MAX_COMMENT_BYTES

#define MAX_COMMENT_BYTES   255

MAX_HUFF_BITS

#define MAX_HUFF_BITS   20

MAX_NUM_ADE

#define MAX_NUM_ADE   7

MAX_NUM_BCE

#define MAX_NUM_BCE   15

MAX_NUM_CCE

#define MAX_NUM_CCE   15

MAX_NUM_FCE

#define MAX_NUM_FCE   15

MAX_NUM_LCE

#define MAX_NUM_LCE   3

MAX_NUM_SCE

#define MAX_NUM_SCE   15

MIN

#define MIN	(		a,
			b
	)		((a) < (b) ? (a) : (b))

NUM_IMDCT_SIZES

#define NUM_IMDCT_SIZES   2

NWINDOWS_LONG

#define NWINDOWS_LONG   1

NWINDOWS_SHORT

#define NWINDOWS_SHORT   8

R4FFT

#define R4FFT   STATNAME(R4FFT)

SF_DQ_OFFSET

#define SF_DQ_OFFSET   15

sinWindow

#define sinWindow   STATNAME(sinWindow)

sinWindowOffset

#define sinWindowOffset   STATNAME(sinWindowOffset)

twidTabEven

#define twidTabEven   STATNAME(twidTabEven)

twidTabOdd

#define twidTabOdd   STATNAME(twidTabOdd)

uniqueIDTab

#define uniqueIDTab   STATNAME(uniqueIDTab)

类型定义说明

ADIFHeader

typedef struct _ADIFHeader ADIFHeader

ADTSHeader

typedef struct _ADTSHeader ADTSHeader

GainControlInfo

typedef struct _GainControlInfo GainControlInfo

HuffInfo

typedef struct _HuffInfo HuffInfo

ICSInfo

typedef struct _ICSInfo ICSInfo

ProgConfigElement

typedef struct _ProgConfigElement ProgConfigElement

PSInfoBase

typedef struct _PSInfoBase PSInfoBase

PulseInfo

typedef struct _PulseInfo PulseInfo

TNSInfo

typedef struct _TNSInfo TNSInfo

函数说明

DCT4()

void STATNAME() DCT4	(	int	tabidx,
		int *	coef,
		int	gb
	)

DecodeHuffmanScalar()

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

DecodeICSInfo()

void STATNAME() DecodeICSInfo	(	BitStreamInfo *	bsi,
		ICSInfo *	icsInfo,
		int	sampRateIdx
	)

DecodeProgramConfigElement()

int STATNAME() DecodeProgramConfigElement	(	ProgConfigElement *	pce,
		BitStreamInfo *	bsi
	)

DecodeSpectrumLong()

void STATNAME() DecodeSpectrumLong	(	PSInfoBase *	psi,
		BitStreamInfo *	bsi,
		int	ch
	)

DecodeSpectrumShort()

void STATNAME() DecodeSpectrumShort	(	PSInfoBase *	psi,
		BitStreamInfo *	bsi,
		int	ch
	)

DecWindowOverlapLongStartNoClip()

void STATNAME() DecWindowOverlapLongStartNoClip	(	int *	buf0,
		int *	over0,
		int *	out0,
		int	winTypeCurr,
		int	winTypePrev
	)

DecWindowOverlapLongStopNoClip()

void STATNAME() DecWindowOverlapLongStopNoClip	(	int *	buf0,
		int *	over0,
		int *	out0,
		int	winTypeCurr,
		int	winTypePrev
	)

DecWindowOverlapNoClip()

void STATNAME() DecWindowOverlapNoClip	(	int *	buf0,
		int *	over0,
		int *	out0,
		int	winTypeCurr,
		int	winTypePrev
	)

DecWindowOverlapShortNoClip()

void STATNAME() DecWindowOverlapShortNoClip	(	int *	buf0,
		int *	over0,
		int *	out0,
		int	winTypeCurr,
		int	winTypePrev
	)

R4FFT()

void STATNAME() R4FFT	(	int	tabidx,
		int *	x
	)

STATNAME() [1/15]

const HuffInfo STATNAME

(

huffTabSpecInfo

)

STATNAME() [2/15]

const signed short STATNAME

(

huffTabSpec

)

STATNAME() [3/15]

const HuffInfo STATNAME

(

huffTabScaleFactInfo

)

STATNAME() [4/15]

const signed short STATNAME

(

huffTabScaleFact

)

STATNAME() [5/15]

const int STATNAME

(

cos4sin4tabOffset

)

STATNAME() [6/15]

const int STATNAME

(

sinWindowOffset

)

STATNAME() [7/15]

const int STATNAME

(

kbdWindowOffset

)

STATNAME() [8/15]

const unsigned char STATNAME

(

bitrevtab

)

STATNAME() [9/15]

const int STATNAME

(

bitrevtabOffset

)

STATNAME() [10/15]

const int STATNAME

(

cos4sin4tab

)

STATNAME() [11/15]

const int STATNAME

(

cos1sin1tab

)

STATNAME() [12/15]

const int STATNAME

(

sinWindow

)

STATNAME() [13/15]

const int STATNAME

(

kbdWindow

)

STATNAME() [14/15]

const int STATNAME

(

twidTabEven

)

STATNAME() [15/15]

const int STATNAME

(

twidTabOdd

)