jens
e93e7927cb
git-svn-id: http://moon:8086/svn/software/trunk/libsrc/avpflms@1 b431acfa-c32f-4a4a-93f1-934dc6c82436
70 lines
2.2 KiB
Plaintext
Executable File
70 lines
2.2 KiB
Plaintext
Executable File
/*-------------------------------------------------------------------------
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* pfft.h Partioned Fast Fourier Transform
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* $Id: $
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*-------------------------------------------------------------------------
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*
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* Copyright (C) 2001 Algo Vision Systems GmbH
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef _PFFT_H
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#define _PFFT_H
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#include "avtypes.h"
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#include "avfft.h"
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/*-----------------------------------------------------------------------*/
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/* PFLMS-Parameter */
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/*-----------------------------------------------------------------------*/
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typedef struct _sCOMPLEX
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{
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avfloat_t *pReal, *pImag;
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} COMPLEX;
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typedef struct _sREALBUF
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{
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avfloat_t *pData;
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struct _sREALBUF *pNext, *pLast, *pLastPS;
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UINT32 user;
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} REALBUF;
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typedef struct _sCMPXBUF
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{
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struct _sCOMPLEX cmpxData;
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struct _sCMPXBUF *pNext, *pLast, *pLastPS;
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UINT32 user;
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} CMPXBUF;
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typedef struct _sPFFT
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{
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UINT32 N, P, S, L, C; /* PFLMS-Parameter N, P, S, L, C */
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CMPXBUF *pBufX; /* komplexer Puffer X[P*S][C] */
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CMPXBUF *pX; /* aktuelle Zeiger auf Puffer[p][] */
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COMPLEX *pY; /* temporaerer Puffer fuer Y[] und E[] */
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avfloat_t *pBufXsave; /* Overlap-Save Puffer xs[S*L] */
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FFT *pFFT; /* FFT-Objekt */
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} PFFT;
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void CmpxVectMul(struct _sCOMPLEX *pA, struct _sCOMPLEX *pB, struct _sCOMPLEX *pAB, UINT32 len);
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void CmpxVectAdd(struct _sCOMPLEX *pA, struct _sCOMPLEX *pB, struct _sCOMPLEX *pAB, UINT32 len);
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void CmpxVectMac(struct _sCOMPLEX *pA, struct _sCOMPLEX *pB, struct _sCOMPLEX *pAB, UINT32 len);
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void CmpxVectMulS(struct _sCOMPLEX *pA, struct _sCOMPLEX *pB, struct _sCOMPLEX *pAB, UINT32 len);
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void CmpxVectMacS(struct _sCOMPLEX *pA, struct _sCOMPLEX *pB, struct _sCOMPLEX *pAB, UINT32 len);
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#ifdef __cplusplus
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extern "C" {
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#endif
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AVERR PfftInit(PFFT *pObj,UINT32 N, UINT32 P, UINT32 S, UINT32 L, UINT32 C);
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AVERR PfftFilterAlloc(PFFT *pObj, CMPXBUF **ppH);
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AVERR PfftFilterInit(PFFT *pObj, avfloat_t *pWTD, CMPXBUF *pH);
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AVERR PfftFilter(PFFT *pObj, CMPXBUF *pH, avfloat_t *px, avfloat_t *py);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _PFFT_H */
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