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67 lines
2.3 KiB
C
67 lines
2.3 KiB
C
13 years ago
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/*
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** Copyright 2003-2010, VisualOn, Inc.
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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/*******************************************************************************
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File: psy_data.h
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Content: Psychoacoustic data and structures
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*******************************************************************************/
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#ifndef _PSY_DATA_H
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#define _PSY_DATA_H
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#include "block_switch.h"
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#include "tns.h"
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/*
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the structs can be implemented as unions
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*/
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typedef struct{
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Word32 sfbLong[MAX_GROUPED_SFB];
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Word32 sfbShort[TRANS_FAC][MAX_SFB_SHORT];
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}SFB_THRESHOLD; /* Word16 size: 260 */
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typedef struct{
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Word32 sfbLong[MAX_GROUPED_SFB];
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Word32 sfbShort[TRANS_FAC][MAX_SFB_SHORT];
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}SFB_ENERGY; /* Word16 size: 260 */
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typedef struct{
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Word32 sfbLong;
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Word32 sfbShort[TRANS_FAC];
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}SFB_ENERGY_SUM; /* Word16 size: 18 */
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typedef struct{
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BLOCK_SWITCHING_CONTROL blockSwitchingControl; /* block switching */
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Word16 *mdctDelayBuffer; /* mdct delay buffer [BLOCK_SWITCHING_OFFSET]*/
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Word32 sfbThresholdnm1[MAX_SFB]; /* PreEchoControl */
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Word16 mdctScalenm1; /* scale of last block's mdct (PreEchoControl) */
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SFB_THRESHOLD sfbThreshold; /* adapt */
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SFB_ENERGY sfbEnergy; /* sfb Energy */
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SFB_ENERGY sfbEnergyMS;
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SFB_ENERGY_SUM sfbEnergySum;
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SFB_ENERGY_SUM sfbEnergySumMS;
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SFB_ENERGY sfbSpreadedEnergy;
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Word32 *mdctSpectrum; /* mdct spectrum [FRAME_LEN_LONG] */
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Word16 mdctScale; /* scale of mdct */
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}PSY_DATA; /* Word16 size: 4 + 87 + 102 + 360 + 360 + 360 + 18 + 18 + 360 = 1669 */
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#endif /* _PSY_DATA_H */
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