coder.h File Reference

#include "aaccommon.h"
#include "bitstream.h"

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Classes
struct	_HuffInfo
struct	_PulseInfo
struct	_TNSInfo
struct	_GainControlInfo
struct	_ICSInfo
struct	_ADTSHeader
struct	_ADIFHeader
struct	_ProgConfigElement
struct	_PSInfoBase

Macros
#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	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)

Typedefs
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

Functions
int	DecodeProgramConfigElement (ProgConfigElement *pce, BitStreamInfo *bsi)
int	DecodeHuffmanScalar (const signed short *huffTab, const HuffInfo *huffTabInfo, unsigned int bitBuf, signed int *val)
void	DecodeSpectrumLong (PSInfoBase *psi, BitStreamInfo *bsi, int ch)
void	DecodeSpectrumShort (PSInfoBase *psi, BitStreamInfo *bsi, int ch)
void	DecodeICSInfo (BitStreamInfo *bsi, ICSInfo *icsInfo, int sampRateIdx)
void	DCT4 (int tabidx, int *coef, int gb)
void	R4FFT (int tabidx, int *x)
void	DecWindowOverlapNoClip (int *buf0, int *over0, int *out0, int winTypeCurr, int winTypePrev)
void	DecWindowOverlapLongStartNoClip (int *buf0, int *over0, int *out0, int winTypeCurr, int winTypePrev)
void	DecWindowOverlapLongStopNoClip (int *buf0, int *over0, int *out0, int winTypeCurr, int winTypePrev)
void	DecWindowOverlapShortNoClip (int *buf0, int *over0, int *out0, int winTypeCurr, int winTypePrev)

Variables
const HuffInfo	huffTabSpecInfo [11]
const signed short	huffTabSpec [1241]
const HuffInfo	huffTabScaleFactInfo
const signed short	huffTabScaleFact [121]
const int	cos4sin4tabOffset [NUM_IMDCT_SIZES]
const int	sinWindowOffset [NUM_IMDCT_SIZES]
const int	kbdWindowOffset [NUM_IMDCT_SIZES]
const unsigned char	bitrevtab [17+129]
const int	bitrevtabOffset [NUM_IMDCT_SIZES]
const int	cos4sin4tab [128+1024]
const int	cos1sin1tab [514]
const int	sinWindow [128+1024]
const int	kbdWindow [128+1024]
const int	twidTabEven [4 *6+16 *6+64 *6]
const int	twidTabOdd [8 *6+32 *6+128 *6]

Macro Definition Documentation

ADIF_COPYID_SIZE

#define ADIF_COPYID_SIZE   9

ASSERT

#define ASSERT

(

x

)

/* do nothing */

bitrevtab

const unsigned char bitrevtab   STATNAME(bitrevtab)

bitrevtabOffset

const int 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 */

cos1sin1tab

const int cos1sin1tab   STATNAME(cos1sin1tab)

cos4sin4tab

const int 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

const signed short huffTabScaleFact   STATNAME(huffTabScaleFact)

huffTabScaleFactInfo

#define huffTabScaleFactInfo   STATNAME(huffTabScaleFactInfo)

huffTabSpec

const signed short huffTabSpec   STATNAME(huffTabSpec)

huffTabSpecInfo

#define huffTabSpecInfo   STATNAME(huffTabSpecInfo)

kbdWindow

const int kbdWindow   STATNAME(kbdWindow)

kbdWindowOffset

const int 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

const int sinWindow   STATNAME(sinWindow)

sinWindowOffset

const int sinWindowOffset   STATNAME(sinWindowOffset)

twidTabEven

const int twidTabEven   STATNAME(twidTabEven)

twidTabOdd

const int twidTabOdd   STATNAME(twidTabOdd)

uniqueIDTab

#define uniqueIDTab   STATNAME(uniqueIDTab)

Typedef Documentation

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

Function Documentation

DCT4()

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

DecodeHuffmanScalar()

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

DecodeICSInfo()

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

DecodeProgramConfigElement()

int DecodeProgramConfigElement	(	ProgConfigElement *	pce,
		BitStreamInfo *	bsi
	)

DecodeSpectrumLong()

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

DecodeSpectrumShort()

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

DecWindowOverlapLongStartNoClip()

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

DecWindowOverlapLongStopNoClip()

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

DecWindowOverlapNoClip()

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

DecWindowOverlapShortNoClip()

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

R4FFT()

void R4FFT	(	int	tabidx,
		int *	x
	)

Variable Documentation

bitrevtab

const unsigned char bitrevtab[17+129]

extern

bitrevtabOffset

const int bitrevtabOffset[NUM_IMDCT_SIZES]

extern

cos1sin1tab

const int cos1sin1tab[514]

extern

cos4sin4tab

const int cos4sin4tab[128+1024]

extern

cos4sin4tabOffset

const int cos4sin4tabOffset[NUM_IMDCT_SIZES]

extern

huffTabScaleFact

const signed short huffTabScaleFact[121]

extern

huffTabScaleFactInfo

const HuffInfo huffTabScaleFactInfo

extern

huffTabSpec

const signed short huffTabSpec[1241]

extern

huffTabSpecInfo

const HuffInfo huffTabSpecInfo[11]

extern

kbdWindow

const int kbdWindow[128+1024]

extern

kbdWindowOffset

const int kbdWindowOffset[NUM_IMDCT_SIZES]

extern

sinWindow

const int sinWindow[128+1024]

extern

sinWindowOffset

const int sinWindowOffset[NUM_IMDCT_SIZES]

extern

twidTabEven

const int twidTabEven[4 *6+16 *6+64 *6]

extern

twidTabOdd

const int twidTabOdd[8 *6+32 *6+128 *6]

extern