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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: Global psychoaccoustic constants
******************************************************************************/
#ifndef _PSYCONST_H
#define _PSYCONST_H
#define TRUE 1
#define FALSE 0
#define TRANS_FAC 8 /* encoder short long ratio */
#define FRAME_MAXLEN_SHORT ((1024)/TRANS_FAC)
#define FRAME_LEN_SHORT_128 ((1024)/TRANS_FAC)
#define FRAME_LEN_SHORT_120 (FRAME_LEN_LONG_960/TRANS_FAC)
/* Filterbank type*/
enum FB_TYPE {
FB_LC = 0,
FB_LD = 1,
FB_ELD = 2
};
/* Block types */
#define N_BLOCKTYPES 6
enum
{
LONG_WINDOW = 0,
START_WINDOW,
SHORT_WINDOW,
STOP_WINDOW,
_LOWOV_WINDOW, /* Do not use this block type out side of block_switch.cpp */
WRONG_WINDOW
};
/* Window shapes */
enum
{
SINE_WINDOW = 0,
KBD_WINDOW = 1,
LOL_WINDOW = 2 /* Low OverLap window shape for AAC-LD */
};
/*
MS stuff
*/
enum
{
SI_MS_MASK_NONE = 0,
SI_MS_MASK_SOME = 1,
SI_MS_MASK_ALL = 2
};
#define MAX_NO_OF_GROUPS 4
#define MAX_SFB_LONG 51 /* 51 for a memory optimized implementation, maybe 64 for convenient debugging */
#define MAX_SFB_SHORT 15 /* 15 for a memory optimized implementation, maybe 16 for convenient debugging */
#define MAX_SFB (MAX_SFB_SHORT > MAX_SFB_LONG ? MAX_SFB_SHORT : MAX_SFB_LONG) /* = 51 */
#define MAX_GROUPED_SFB (MAX_NO_OF_GROUPS*MAX_SFB_SHORT > MAX_SFB_LONG ? \
MAX_NO_OF_GROUPS*MAX_SFB_SHORT : MAX_SFB_LONG) /* = 60 */
#define MAX_INPUT_BUFFER_SIZE (2*(1024)) /* 2048 */
#define PCM_LEVEL 1.0f
#define NORM_PCM (PCM_LEVEL/32768.0f)
#define NORM_PCM_ENERGY (NORM_PCM*NORM_PCM)
#define LOG_NORM_PCM -15
#define TNS_PREDGAIN_SCALE (1000)
#define LFE_LOWPASS_LINE 12
#endif /* _PSYCONST_H */
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