coder.h

* Fixed-point MP3 decoder * Jon Recker (jrecker@real.com), Ken Cooke (kenc@real.com) * June 2003 * * coder.h - private, implementation-specific header file

Included Files

#include "nut/include/contrib/hxmp3/mp3common.h"
- #include <nut/include/contrib/hxmp3/mp3dec.h>
- #include <nut/include/contrib/hxmp3/statname.h>

Preprocessor definitions

#define _CODER_H

#define ASSERT( x )

#define MAX( a, b )

#define MIN( a, b )

#define CLIP_2N( y, n )

#define SIBYTES_MPEG1_MONO 17

#define SIBYTES_MPEG1_STEREO 32

#define SIBYTES_MPEG2_MONO 9

#define SIBYTES_MPEG2_STEREO 17

#define POW43_FRACBITS_LOW 22

#define POW43_FRACBITS_HIGH 12

#define DQ_FRACBITS_OUT 25

#define IMDCT_SCALE 2

#define HUFF_PAIRTABS 32

#define BLOCK_SIZE 18

#define NBANDS 32

#define MAX_REORDER_SAMPS

#define VBUF_LENGTH

#define SetBitstreamPointer

#define GetBits

#define CalcBitsUsed

#define DequantChannel

#define MidSideProc

#define IntensityProcMPEG1

#define IntensityProcMPEG2

#define PolyphaseMono

#define PolyphaseStereo

#define FDCT32

#define ISFMpeg1

#define ISFMpeg2

#define ISFIIP

#define uniqueIDTab

#define coef32

#define polyCoef

#define csa

#define imdctWin

#define huffTable

#define huffTabOffset

#define huffTabLookup

#define quadTable

#define quadTabOffset

#define quadTabMaxBits

Typedef StereoMode

typedef enum {...} StereoMode

`enum`
`{`
`Stereo;`
`Joint;`
`Dual;`
`Mono;`
`}`

Typedef BitStreamInfo

typedef struct _BitStreamInfo BitStreamInfo

`struct _BitStreamInfo`
`{`
`unsigned char* bytePtr;`
`unsigned int iCache;`
`int cachedBits;`
`int nBytes;`
`}`

Typedef FrameHeader

typedef struct _FrameHeader FrameHeader

`struct _FrameHeader`
`{`
`MPEGVersion ver;`
`int layer;`
`int crc;`
`int brIdx;`
`int srIdx;`
`int paddingBit;`
`int privateBit;`
`StereoMode sMode;`
`int modeExt;`
`int copyFlag;`
`int origFlag;`
`int emphasis;`
`int CRCWord;`
`const SFBandTable* sfBand;`
`}`

Typedef SideInfoSub

typedef struct _SideInfoSub SideInfoSub

`struct _SideInfoSub`
`{`
`int part23Length;`
`int nBigvals;`
`int globalGain;`
`int sfCompress;`
`int winSwitchFlag;`
`int blockType;`
`int mixedBlock;`
`int tableSelect[3];`
`int subBlockGain[3];`
`int region0Count;`
`int region1Count;`
`int preFlag;`
`int sfactScale;`
`int count1TableSelect;`
`}`

Typedef SideInfo

typedef struct _SideInfo SideInfo

`struct _SideInfo`
`{`
`int mainDataBegin;`
`int privateBits;`
`int scfsi[2][4];`
`SideInfoSub sis[2][2];`
`}`

Typedef CriticalBandInfo

typedef struct {...} CriticalBandInfo

`struct`
`{`
`int cbType;`
`int cbEndS[3];`
`int cbEndSMax;`
`int cbEndL;`
`}`

Typedef DequantInfo

typedef struct _DequantInfo DequantInfo

`struct _DequantInfo`
`{`
`int workBuf[((192-126)*3)];`
`CriticalBandInfo cbi[2];`
`}`

Typedef HuffmanInfo

typedef struct _HuffmanInfo HuffmanInfo

`struct _HuffmanInfo`
`{`
`int huffDecBuf[2][576];`
`int nonZeroBound[2];`
`int gb[2];`
`}`

Typedef HuffTabType

typedef enum _HuffTabType HuffTabType

`enum _HuffTabType`
`{`
`noBits;`
`oneShot;`
`loopNoLinbits;`
`loopLinbits;`
`quadA;`
`quadB;`
`invalidTab;`
`}`

Typedef HuffTabLookup

typedef struct _HuffTabLookup HuffTabLookup

`struct _HuffTabLookup`
`{`
`int linBits;`
`HuffTabType tabType;`
`}`

Typedef IMDCTInfo

typedef struct _IMDCTInfo IMDCTInfo

`struct _IMDCTInfo`
`{`
`int outBuf[2][18][32];`
`int overBuf[2][576/2];`
`int numPrevIMDCT[2];`
`int prevType[2];`
`int prevWinSwitch[2];`
`int gb[2];`
`}`

Typedef BlockCount

typedef struct _BlockCount BlockCount

`struct _BlockCount`
`{`
`int nBlocksLong;`
`int nBlocksTotal;`
`int nBlocksPrev;`
`int prevType;`
`int prevWinSwitch;`
`int currWinSwitch;`
`int gbIn;`
`int gbOut;`
`}`