1 /* 2 ** Copyright 2003-2010, VisualOn, Inc. 3 ** 4 ** Licensed under the Apache License, Version 2.0 (the "License"); 5 ** you may not use this file except in compliance with the License. 6 ** You may obtain a copy of the License at 7 ** 8 ** http://www.apache.org/licenses/LICENSE-2.0 9 ** 10 ** Unless required by applicable law or agreed to in writing, software 11 ** distributed under the License is distributed on an "AS IS" BASIS, 12 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 ** See the License for the specific language governing permissions and 14 ** limitations under the License. 15 */ 16 /******************************************************************************* 17 File: psy_data.h 18 19 Content: Psychoacoustic data and structures 20 21 *******************************************************************************/ 22 23 #ifndef _PSY_DATA_H 24 #define _PSY_DATA_H 25 26 #include "block_switch.h" 27 #include "tns.h" 28 29 /* 30 the structs can be implemented as unions 31 */ 32 33 typedef struct{ 34 Word32 sfbLong[MAX_GROUPED_SFB]; 35 Word32 sfbShort[TRANS_FAC][MAX_SFB_SHORT]; 36 }SFB_THRESHOLD; /* Word16 size: 260 */ 37 38 typedef struct{ 39 Word32 sfbLong[MAX_GROUPED_SFB]; 40 Word32 sfbShort[TRANS_FAC][MAX_SFB_SHORT]; 41 }SFB_ENERGY; /* Word16 size: 260 */ 42 43 typedef struct{ 44 Word32 sfbLong; 45 Word32 sfbShort[TRANS_FAC]; 46 }SFB_ENERGY_SUM; /* Word16 size: 18 */ 47 48 49 typedef struct{ 50 BLOCK_SWITCHING_CONTROL blockSwitchingControl; /* block switching */ 51 Word16 *mdctDelayBuffer; /* mdct delay buffer [BLOCK_SWITCHING_OFFSET]*/ 52 Word32 sfbThresholdnm1[MAX_SFB]; /* PreEchoControl */ 53 Word16 mdctScalenm1; /* scale of last block's mdct (PreEchoControl) */ 54 55 SFB_THRESHOLD sfbThreshold; /* adapt */ 56 SFB_ENERGY sfbEnergy; /* sfb Energy */ 57 SFB_ENERGY sfbEnergyMS; 58 SFB_ENERGY_SUM sfbEnergySum; 59 SFB_ENERGY_SUM sfbEnergySumMS; 60 SFB_ENERGY sfbSpreadedEnergy; 61 62 Word32 *mdctSpectrum; /* mdct spectrum [FRAME_LEN_LONG] */ 63 Word16 mdctScale; /* scale of mdct */ 64 }PSY_DATA; /* Word16 size: 4 + 87 + 102 + 360 + 360 + 360 + 18 + 18 + 360 = 1669 */ 65 66 #endif /* _PSY_DATA_H */ 67