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Diffstat (limited to 'libSBRdec/src/sbr_dec.h')
-rw-r--r-- | libSBRdec/src/sbr_dec.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/libSBRdec/src/sbr_dec.h b/libSBRdec/src/sbr_dec.h new file mode 100644 index 0000000..d967957 --- /dev/null +++ b/libSBRdec/src/sbr_dec.h @@ -0,0 +1,152 @@ +/**************************************************************************** + + (C) Copyright Fraunhofer IIS (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. + + + 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. + + $Id$ + +*******************************************************************************/ +/*! + \file + \brief Sbr decoder $Revision: 36841 $ +*/ +#ifndef __SBR_DEC_H +#define __SBR_DEC_H + +#include "sbrdecoder.h" + +#include "lpp_tran.h" +#include "qmf.h" +#include "env_calc.h" +#include "FDK_audio.h" + + +#include "sbrdec_drc.h" + +#define SACDEC_ALIGNMENT_FIX + +typedef struct +{ + QMF_FILTER_BANK AnalysiscQMF; + QMF_FILTER_BANK SynthesisQMF; + + SBR_CALCULATE_ENVELOPE SbrCalculateEnvelope; + SBR_LPP_TRANS LppTrans; + + QMF_SCALE_FACTOR sbrScaleFactor; + QMF_SCALE_FACTOR sbrScaleFactorRight; + + /*! Delayed spectral data needed for the dynamic framing of SBR. Not required in case of CLDFB */ + FIXP_DBL * pSbrOverlapBuffer; + + /* References to workbuffers */ + FIXP_DBL * WorkBuffer1; + FIXP_DBL * WorkBuffer2; + + /* QMF filter states */ + FIXP_QAS anaQmfStates[(320)]; + FIXP_QSS * pSynQmfStates; + + /* Reference pointer arrays for QMF time slots, + mixed among overlap and current slots. */ + FIXP_DBL * QmfBufferReal[(((1024)/(32))+(6))]; + FIXP_DBL * QmfBufferImag[(((1024)/(32))+(6))]; + int useLP; + + /* QMF domain extension time slot reference pointer array */ + + SBRDEC_DRC_CHANNEL sbrDrcChannel; + +} SBR_DEC; + +typedef SBR_DEC *HANDLE_SBR_DEC; + + +typedef struct +{ + SBR_FRAME_DATA frameData[(1)+1]; + SBR_PREV_FRAME_DATA prevFrameData; + SBR_DEC SbrDec; +} +SBR_CHANNEL; + +typedef SBR_CHANNEL *HANDLE_SBR_CHANNEL; + +void +SbrDecodeAndProcess (HANDLE_SBR_DEC hSbrDec, + INT_PCM *timeIn, + HANDLE_SBR_HEADER_DATA hHeaderData, + HANDLE_SBR_FRAME_DATA hFrameData, + HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData, + int applyProcessing, + int channelNr + , UCHAR useLP + ); + + +void +SbrConstructTimeOutput (HANDLE_SBR_DEC hSbrDec, /*!< handle to Decoder channel */ + INT_PCM *timeOut, /*!< pointer to output time signal */ + HANDLE_SBR_HEADER_DATA hHeaderData,/*!< Static control data */ + HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData, /*!< Some control data of last frame */ + int channelNr + ,UCHAR useLP + ); + + +void +sbr_dec (HANDLE_SBR_DEC hSbrDec, /*!< handle to Decoder channel */ + INT_PCM *timeIn, /*!< pointer to input time signal */ + INT_PCM *timeOut, /*!< pointer to output time signal */ + HANDLE_SBR_DEC hSbrDecRight, /*!< handle to Decoder channel right */ + INT_PCM *timeOutRight, /*!< pointer to output time signal */ + const int strideIn, /*!< Time data traversal strideIn */ + const int strideOut, /*!< Time data traversal strideOut */ + HANDLE_SBR_HEADER_DATA hHeaderData,/*!< Static control data */ + HANDLE_SBR_FRAME_DATA hFrameData, /*!< Control data of current frame */ + HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData, /*!< Some control data of last frame */ + const int applyProcessing, /*!< Flag for SBR operation */ + HANDLE_PS_DEC h_ps_d, + const UINT flags + ); + + + +SBR_ERROR +createSbrDec (SBR_CHANNEL * hSbrChannel, + HANDLE_SBR_HEADER_DATA hHeaderData, + TRANSPOSER_SETTINGS *pSettings, + const int downsampleFac, + const UINT qmfFlags, + const UINT flags, + const int overlap, + int chan); + +int +deleteSbrDec (SBR_CHANNEL * hSbrChannel); + +SBR_ERROR +resetSbrDec (HANDLE_SBR_DEC hSbrDec, + HANDLE_SBR_HEADER_DATA hHeaderData, + HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData, + const int useLP, + const int downsampleFac); + +#endif |