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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 data
******************************************************************************/
#ifndef _PSY_DATA_H
#define _PSY_DATA_H
#include "block_switch.h"
/* Be careful with MAX_SFB_LONG as length of the .Long arrays.
* sfbEnergy.Long and sfbEnergyMS.Long and sfbThreshold.Long are used as a temporary storage for the regrouped
* short energies and thresholds between FDKaacEnc_groupShortData() and BuildInterface() in FDKaacEnc_psyMain().
* The space required for this is MAX_GROUPED_SFB ( = MAX_NO_OF_GROUPS*MAX_SFB_SHORT ).
* However, this is not important if unions are used (which is not possible with pfloat). */
typedef shouldBeUnion{
FIXP_DBL Long[MAX_GROUPED_SFB];
FIXP_DBL Short[TRANS_FAC][MAX_SFB_SHORT];
}SFB_THRESHOLD;
typedef shouldBeUnion{
FIXP_DBL Long[MAX_GROUPED_SFB];
FIXP_DBL Short[TRANS_FAC][MAX_SFB_SHORT];
}SFB_ENERGY;
typedef shouldBeUnion{
FIXP_DBL Long[MAX_GROUPED_SFB];
FIXP_DBL Short[TRANS_FAC][MAX_SFB_SHORT];
}SFB_LD_ENERGY;
typedef shouldBeUnion{
INT Long[MAX_GROUPED_SFB];
INT Short[TRANS_FAC][MAX_SFB_SHORT];
}SFB_MAX_SCALE;
typedef struct{
INT_PCM* psyInputBuffer;
FIXP_DBL overlapAddBuffer[1024];
BLOCK_SWITCHING_CONTROL blockSwitchingControl; /* block switching */
FIXP_DBL sfbThresholdnm1[MAX_SFB]; /* FDKaacEnc_PreEchoControl */
INT mdctScalenm1; /* scale of last block's mdct (FDKaacEnc_PreEchoControl) */
INT calcPreEcho;
INT isLFE;
}PSY_STATIC;
typedef struct{
FIXP_DBL *mdctSpectrum;
SFB_THRESHOLD sfbThreshold; /* adapt */
SFB_ENERGY sfbEnergy; /* sfb energies */
SFB_LD_ENERGY sfbEnergyLdData; /* sfb energies in ldData format */
SFB_MAX_SCALE sfbMaxScaleSpec;
SFB_ENERGY sfbEnergyMS; /* mid/side sfb energies */
FIXP_DBL sfbEnergyMSLdData[MAX_GROUPED_SFB]; /* mid/side sfb energies in ldData format */
SFB_ENERGY sfbSpreadEnergy;
INT mdctScale; /* exponent of data in mdctSpectrum */
INT groupedSfbOffset[MAX_GROUPED_SFB+1];
INT sfbActive;
INT lowpassLine;
}PSY_DATA;
#endif /* _PSY_DATA_H */
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