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/******************************** MPEG Audio Encoder **************************
(C) Copyright Fraunhofer IIS (1999)
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.
$Id$
Initial author: M.Werner
contents/description: Psychoaccoustic configuration
******************************************************************************/
#ifndef _PSY_CONFIGURATION_H
#define _PSY_CONFIGURATION_H
#include "aacenc.h"
#include "common_fix.h"
#include "psy_const.h"
#include "aacenc_tns.h"
#include "aacenc_pns.h"
#define THR_SHIFTBITS 4
#define PCM_QUANT_THR_SCALE 16
#define C_RATIO (FIXP_DBL)0x02940a10 /* FL2FXCONST_DBL(0.001258925f) << THR_SHIFTBITS; */ /* pow(10.0f, -(29.0f/10.0f)) */
typedef struct{
INT sfbCnt; /* number of existing sf bands */
INT sfbActive; /* number of sf bands containing energy after lowpass */
INT sfbActiveLFE;
INT sfbOffset[MAX_SFB+1];
INT filterbank; /* LC, LD or ELD */
FIXP_DBL sfbPcmQuantThreshold[MAX_SFB];
INT maxAllowedIncreaseFactor; /* preecho control */
FIXP_SGL minRemainingThresholdFactor;
INT lowpassLine;
INT lowpassLineLFE;
FIXP_DBL clipEnergy; /* for level dependend tmn */
FIXP_DBL sfbMaskLowFactor[MAX_SFB];
FIXP_DBL sfbMaskHighFactor[MAX_SFB];
FIXP_DBL sfbMaskLowFactorSprEn[MAX_SFB];
FIXP_DBL sfbMaskHighFactorSprEn[MAX_SFB];
FIXP_DBL sfbMinSnrLdData[MAX_SFB]; /* minimum snr (formerly known as bmax) */
TNS_CONFIG tnsConf;
PNS_CONFIG pnsConf;
INT granuleLength;
INT allowIS;
}PSY_CONFIGURATION;
typedef struct{
UCHAR sfbCnt; /* Number of scalefactor bands */
UCHAR sfbWidth[MAX_SFB_LONG]; /* Width of scalefactor bands for long blocks */
}SFB_PARAM_LONG;
typedef struct{
UCHAR sfbCnt; /* Number of scalefactor bands */
UCHAR sfbWidth[MAX_SFB_SHORT]; /* Width of scalefactor bands for short blocks */
}SFB_PARAM_SHORT;
AAC_ENCODER_ERROR FDKaacEnc_InitPsyConfiguration(INT bitrate,
INT samplerate,
INT bandwidth,
INT blocktype,
INT granuleLength,
INT useIS,
PSY_CONFIGURATION *psyConf,
FB_TYPE filterbank);
#endif /* _PSY_CONFIGURATION_H */
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