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/****************************************************************************
(C) Copyright Fraunhofer IIS (2004)
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 missing harmonics detection header file $Revision: 36847 $
*/
#ifndef __MH_DETECT_H
#define __MH_DETECT_H
#include "sbr_encoder.h"
#include "fram_gen.h"
typedef struct
{
FIXP_DBL thresHoldDiff; /*!< threshold for tonality difference */
FIXP_DBL thresHoldDiffGuide; /*!< threshold for tonality difference for the guide */
FIXP_DBL thresHoldTone; /*!< threshold for tonality for a sine */
FIXP_DBL invThresHoldTone;
FIXP_DBL thresHoldToneGuide; /*!< threshold for tonality for a sine for the guide */
FIXP_DBL sfmThresSbr; /*!< tonality flatness measure threshold for the SBR signal.*/
FIXP_DBL sfmThresOrig; /*!< tonality flatness measure threshold for the original signal.*/
FIXP_DBL decayGuideOrig; /*!< decay value of the tonality value of the guide for the tone. */
FIXP_DBL decayGuideDiff; /*!< decay value of the tonality value of the guide for the tonality difference. */
FIXP_DBL derivThresMaxLD64; /*!< threshold for detecting LP character in a signal. */
FIXP_DBL derivThresBelowLD64; /*!< threshold for detecting LP character in a signal. */
FIXP_DBL derivThresAboveLD64; /*!< threshold for detecting LP character in a signal. */
}THRES_HOLDS;
typedef struct
{
INT deltaTime; /*!< maximum allowed transient distance (from frame border in number of qmf subband sample)
for a frame to be considered a transient frame.*/
THRES_HOLDS thresHolds; /*!< the thresholds used for detection. */
INT maxComp; /*!< maximum alllowed compensation factor for the envelope data. */
}DETECTOR_PARAMETERS_MH;
typedef struct
{
FIXP_DBL *guideVectorDiff;
FIXP_DBL *guideVectorOrig;
UCHAR* guideVectorDetected;
}GUIDE_VECTORS;
typedef struct
{
INT qmfNoChannels;
INT nSfb;
INT sampleFreq;
INT previousTransientFlag;
INT previousTransientFrame;
INT previousTransientPos;
INT noVecPerFrame;
INT transientPosOffset;
INT move;
INT totNoEst;
INT noEstPerFrame;
INT timeSlots;
UCHAR *guideScfb;
UCHAR *prevEnvelopeCompensation;
UCHAR *detectionVectors[MAX_NO_OF_ESTIMATES];
FIXP_DBL tonalityDiff[MAX_NO_OF_ESTIMATES/2][MAX_FREQ_COEFFS];
FIXP_DBL sfmOrig[MAX_NO_OF_ESTIMATES/2][MAX_FREQ_COEFFS];
FIXP_DBL sfmSbr[MAX_NO_OF_ESTIMATES/2][MAX_FREQ_COEFFS];
const DETECTOR_PARAMETERS_MH *mhParams;
GUIDE_VECTORS guideVectors[MAX_NO_OF_ESTIMATES];
}
SBR_MISSING_HARMONICS_DETECTOR;
typedef SBR_MISSING_HARMONICS_DETECTOR *HANDLE_SBR_MISSING_HARMONICS_DETECTOR;
void
FDKsbrEnc_SbrMissingHarmonicsDetectorQmf(HANDLE_SBR_MISSING_HARMONICS_DETECTOR h_sbrMissingHarmonicsDetector,
FIXP_DBL ** pQuotaBuffer,
INT ** pSignBuffer,
SCHAR *indexVector,
const SBR_FRAME_INFO *pFrameInfo,
const UCHAR* pTranInfo,
INT* pAddHarmonicsFlag,
UCHAR* pAddHarmonicsScaleFactorBands,
const UCHAR* freqBandTable,
INT nSfb,
UCHAR * envelopeCompensation,
FIXP_DBL *pNrgVector);
INT
FDKsbrEnc_CreateSbrMissingHarmonicsDetector (
HANDLE_SBR_MISSING_HARMONICS_DETECTOR hSbrMHDet,
INT chan);
INT
FDKsbrEnc_InitSbrMissingHarmonicsDetector(
HANDLE_SBR_MISSING_HARMONICS_DETECTOR h_sbrMissingHarmonicsDetector,
INT sampleFreq,
INT frameSize,
INT nSfb,
INT qmfNoChannels,
INT totNoEst,
INT move,
INT noEstPerFrame,
UINT sbrSyntaxFlags);
void
FDKsbrEnc_DeleteSbrMissingHarmonicsDetector (HANDLE_SBR_MISSING_HARMONICS_DETECTOR h_sbrMissingHarmonicsDetector);
INT
FDKsbrEnc_ResetSbrMissingHarmonicsDetector (HANDLE_SBR_MISSING_HARMONICS_DETECTOR hSbrMissingHarmonicsDetector,
INT nSfb);
#endif
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