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Diffstat (limited to 'libSBRenc/src/psenc_hybrid.h')
| -rw-r--r-- | libSBRenc/src/psenc_hybrid.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/libSBRenc/src/psenc_hybrid.h b/libSBRenc/src/psenc_hybrid.h new file mode 100644 index 0000000..79e600d --- /dev/null +++ b/libSBRenc/src/psenc_hybrid.h @@ -0,0 +1,182 @@ +/***************************** MPEG Audio Encoder *************************** + + (C) Copyright Fraunhofer IIS (2004-2005) + All Rights Reserved + + Please be advised that this software and/or program delivery is + Confidential Information of Fraunhofer and subject to and covered by the + + Fraunhofer IIS Software Evaluation Agreement + between Google Inc. and Fraunhofer + effective and in full force since March 1, 2012. + + You may use this software and/or program only under the terms and + conditions described in the above mentioned Fraunhofer IIS Software + Evaluation Agreement. Any other and/or further use requires a separate agreement. + + + $Id$ + Initial author: M. Neuendorf, M. Multrus + contents/description: hypbrid filter bank (prototypes) + + This software and/or program is protected by copyright law and international + treaties. Any reproduction or distribution of this software and/or program, + or any portion of it, may result in severe civil and criminal penalties, and + will be prosecuted to the maximum extent possible under law. + +******************************************************************************/ +#ifndef __hybrid_h +#define __hybrid_h + +/* Includes ******************************************************************/ +#include "sbr_def.h" +#include "ps_const.h" + +#include "qmf.h" + +/* Data Types ****************************************************************/ + +typedef enum { + HYBRID_2_REAL = 2, + HYBRID_4_CPLX = 4, + HYBRID_6_CPLX = 6, + HYBRID_8_CPLX = 8, + HYBRID_12_CPLX = 12 +} HYBRID_RES; + +#define MAX_HYBRID_RES (HYBRID_12_CPLX) + +/* Defines *******************************************************************/ +#define MAX_QMF_BANDS_IN_HYBRID (5) +#define MAX_IID_GROUPS (50) /* NO_IID_GROUPS_HI_RES */ + +#define HYBRID_FILTER_LENGTH ( 13 ) + +#define HYBRID_FRAMESIZE ( QMF_MAX_TIME_SLOTS ) +#define HYBRID_WRITEOFFSET ( 10 ) +#define HYBRID_NUM_BANDS ( 10 ) + +#define NO_QMF_BANDS_HYBRID_10 ( 3 ) +#define NO_QMF_BANDS_HYBRID_20 ( 3 ) +#define HYBRID_MAX_QMF_BANDS ( NO_QMF_BANDS_HYBRID_20 ) + +#define QMF_BUFFER_MOVE ( HYBRID_FILTER_LENGTH - 1 ) + + +/* Data Types ****************************************************************/ +typedef struct PS_HYBRID_CONFIG_tag { + PS_BANDS mode; + + UINT noQmfBandsInHybrid; + INT aHybridResolution[MAX_QMF_BANDS_IN_HYBRID]; /* valid entries from 0 to noQmfBandsInHybrid */ + +} PS_HYBRID_CONFIG, *HANDLE_PS_HYBRID_CONFIG; + +typedef struct PS_HYBRID_tag +{ + PS_BANDS mode; + INT nQmfBands; + INT frameSizeInit; + INT frameSize; + INT pResolution[HYBRID_MAX_QMF_BANDS]; + INT qmfBufferMove; + INT hybridFilterDelay; + + FIXP_DBL *fft; + + FIXP_QMF *pWorkReal; /**< Working arrays for Qmf samples. */ + FIXP_QMF *pWorkImag; + + FIXP_QMF mQmfBufferReal[HYBRID_MAX_QMF_BANDS][QMF_BUFFER_MOVE]; /**< Stores old Qmf samples. */ + FIXP_QMF mQmfBufferImag[HYBRID_MAX_QMF_BANDS][QMF_BUFFER_MOVE]; + FIXP_QMF *mTempReal[HYBRID_FRAMESIZE]; /**< Temporary matrices for filter bank output. */ + FIXP_QMF *mTempImag[HYBRID_FRAMESIZE]; + +} PS_HYBRID; + +typedef struct PS_HYBRID_DATA_tag { + INT frameSize; + INT nHybridBands; + INT nHybridQmfBands; + INT nHybridResolution [HYBRID_MAX_QMF_BANDS]; + + FIXP_QMF* rHybData [(HYBRID_FRAMESIZE + HYBRID_WRITEOFFSET)]; + FIXP_QMF* iHybData [(HYBRID_FRAMESIZE + HYBRID_WRITEOFFSET)]; + SCHAR sf_fixpHybrid; + + INT hybDataReadOffset; + INT hybDataWriteOffset; + +} PS_HYBRID_DATA; + + +typedef struct PS_HYBRID_DATA_tag *HANDLE_PS_HYBRID_DATA; +typedef struct PS_HYBRID_tag *HANDLE_PS_HYBRID; + + + +/* Function Declarations *********************************************/ + +/*****************************************************************************/ +/* **** FILTERBANK CONFIG **** */ + +HANDLE_ERROR_INFO FDKsbrEnc_CreateHybridConfig(HANDLE_PS_HYBRID_CONFIG *phHybConfig, + PS_BANDS mode); + +/*****************************************************************************/ +/* **** FILTERBANK DATA **** */ + +HANDLE_ERROR_INFO FDKsbrEnc_CreateHybridData(HANDLE_PS_HYBRID_DATA *phHybData, + INT ch); + +HANDLE_ERROR_INFO FDKsbrEnc_InitHybridData(HANDLE_PS_HYBRID_DATA hHybData, + HANDLE_PS_HYBRID_CONFIG hHybConfig, + INT frameSize); + +HANDLE_ERROR_INFO FDKsbrEnc_DestroyHybridData(HANDLE_PS_HYBRID_DATA* phHybData); + +inline INT FDKsbrEnc_GetHybridFrameSize(HANDLE_PS_HYBRID_DATA h) { + return h->frameSize; +} + +inline INT FDKsbrEnc_GetNumberHybridBands(HANDLE_PS_HYBRID_DATA h) { + return h->nHybridBands; +} + +inline INT FDKsbrEnc_GetNumberHybridQmfBands(HANDLE_PS_HYBRID_DATA h) { + return h->nHybridQmfBands; +} + +INT FDKsbrEnc_GetHybridResolution(HANDLE_PS_HYBRID_DATA h, INT qmfBand); + + + +/*****************************************************************************/ +/* **** FILTERBANK **** */ + +HANDLE_ERROR_INFO +FDKsbrEnc_CreateHybridFilterBank ( HANDLE_PS_HYBRID *phHybrid, + INT ch ); + +HANDLE_ERROR_INFO +FDKsbrEnc_InitHybridFilterBank ( HANDLE_PS_HYBRID hHybrid, + HANDLE_PS_HYBRID_CONFIG hHybConfig, + INT frameSize ); + +HANDLE_ERROR_INFO +FDKsbrEnc_DeleteHybridFilterBank ( HANDLE_PS_HYBRID* phHybrid ); + +HANDLE_ERROR_INFO +HybridAnalysis ( HANDLE_PS_HYBRID hHybrid, + FIXP_QMF *const * const mQmfReal, + FIXP_QMF *const * const mQmfImag, + SCHAR sf_fixpQmf, + FIXP_QMF **mHybridReal, + FIXP_QMF **mHybridImag, + SCHAR *sf_fixpHybrid); + + +INT +FDKsbrEnc_GetHybridFilterDelay(HANDLE_PS_HYBRID hHybrid); + +#endif /*__hybrid_h*/ |