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_configuration.h 18 19 Content: Psychoaccoustic configuration structure and functions 20 21 *******************************************************************************/ 22 23 #ifndef _PSY_CONFIGURATION_H 24 #define _PSY_CONFIGURATION_H 25 26 #include "typedefs.h" 27 #include "psy_const.h" 28 #include "tns.h" 29 30 typedef struct{ 31 32 Word16 sfbCnt; 33 Word16 sfbActive; /* number of sf bands containing energy after lowpass */ 34 const Word16 *sfbOffset; 35 36 Word32 sfbThresholdQuiet[MAX_SFB_LONG]; 37 38 Word16 maxAllowedIncreaseFactor; /* preecho control */ 39 Word16 minRemainingThresholdFactor; 40 41 Word16 lowpassLine; 42 Word16 sampRateIdx; 43 Word32 clipEnergy; /* for level dependend tmn */ 44 45 Word16 ratio; 46 Word16 sfbMaskLowFactor[MAX_SFB_LONG]; 47 Word16 sfbMaskHighFactor[MAX_SFB_LONG]; 48 49 Word16 sfbMaskLowFactorSprEn[MAX_SFB_LONG]; 50 Word16 sfbMaskHighFactorSprEn[MAX_SFB_LONG]; 51 52 53 Word16 sfbMinSnr[MAX_SFB_LONG]; /* minimum snr (formerly known as bmax) */ 54 55 TNS_CONFIG tnsConf; 56 57 }PSY_CONFIGURATION_LONG; /*Word16 size: 8 + 52 + 102 + 51 + 51 + 51 + 51 + 47 = 515 */ 58 59 60 typedef struct{ 61 62 Word16 sfbCnt; 63 Word16 sfbActive; /* number of sf bands containing energy after lowpass */ 64 const Word16 *sfbOffset; 65 66 Word32 sfbThresholdQuiet[MAX_SFB_SHORT]; 67 68 Word16 maxAllowedIncreaseFactor; /* preecho control */ 69 Word16 minRemainingThresholdFactor; 70 71 Word16 lowpassLine; 72 Word16 sampRateIdx; 73 Word32 clipEnergy; /* for level dependend tmn */ 74 75 Word16 ratio; 76 Word16 sfbMaskLowFactor[MAX_SFB_SHORT]; 77 Word16 sfbMaskHighFactor[MAX_SFB_SHORT]; 78 79 Word16 sfbMaskLowFactorSprEn[MAX_SFB_SHORT]; 80 Word16 sfbMaskHighFactorSprEn[MAX_SFB_SHORT]; 81 82 83 Word16 sfbMinSnr[MAX_SFB_SHORT]; /* minimum snr (formerly known as bmax) */ 84 85 TNS_CONFIG tnsConf; 86 87 }PSY_CONFIGURATION_SHORT; /*Word16 size: 8 + 16 + 16 + 16 + 16 + 16 + 16 + 16 + 47 = 167 */ 88 89 90 /* Returns the sample rate index */ 91 Word32 GetSRIndex(Word32 sampleRate); 92 93 94 Word16 InitPsyConfigurationLong(Word32 bitrate, 95 Word32 samplerate, 96 Word16 bandwidth, 97 PSY_CONFIGURATION_LONG *psyConf); 98 99 Word16 InitPsyConfigurationShort(Word32 bitrate, 100 Word32 samplerate, 101 Word16 bandwidth, 102 PSY_CONFIGURATION_SHORT *psyConf); 103 104 #endif /* _PSY_CONFIGURATION_H */ 105 106 107 108
