| /*
|
| ** Copyright 2003-2010, VisualOn, Inc.
|
| **
|
| ** Licensed under the Apache License, Version 2.0 (the "License");
|
| ** you may not use this file except in compliance with the License.
|
| ** You may obtain a copy of the License at
|
| **
|
| ** http://www.apache.org/licenses/LICENSE-2.0
|
| **
|
| ** Unless required by applicable law or agreed to in writing, software
|
| ** distributed under the License is distributed on an "AS IS" BASIS,
|
| ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
| ** See the License for the specific language governing permissions and
|
| ** limitations under the License.
|
| */
|
| /*******************************************************************************
|
| File: tns.h
|
|
|
| Content: TNS structures
|
|
|
| *******************************************************************************/ |
| |
| #ifndef _TNS_H |
| #define _TNS_H |
|
|
| #include "typedef.h" |
| #include "psy_const.h" |
| |
| |
| |
| #define TNS_MAX_ORDER 12 |
| #define TNS_MAX_ORDER_SHORT 5 |
| |
| #define FILTER_DIRECTION 0 |
| |
| typedef struct{ /*stuff that is tabulated dependent on bitrate etc. */ |
| Word16 threshOn; /* min. prediction gain for using tns TABUL * 100*/ |
| Word32 lpcStartFreq; /* lowest freq for lpc TABUL*/ |
| Word32 lpcStopFreq; /* TABUL */ |
| Word32 tnsTimeResolution; |
| }TNS_CONFIG_TABULATED; |
| |
| |
| typedef struct { /*assigned at InitTime*/ |
| Word16 tnsActive; |
| Word16 tnsMaxSfb; |
| |
| Word16 maxOrder; /* max. order of tns filter */ |
| Word16 tnsStartFreq; /* lowest freq. for tns filtering */ |
| Word16 coefRes; |
| |
| TNS_CONFIG_TABULATED confTab; |
| |
| Word32 acfWindow[TNS_MAX_ORDER+1]; |
| |
| Word16 tnsStartBand; |
| Word16 tnsStartLine; |
| |
| Word16 tnsStopBand; |
| Word16 tnsStopLine; |
| |
| Word16 lpcStartBand; |
| Word16 lpcStartLine; |
| |
| Word16 lpcStopBand; |
| Word16 lpcStopLine; |
| |
| Word16 tnsRatioPatchLowestCb; |
| Word16 tnsModifyBeginCb; |
| |
| Word16 threshold; /* min. prediction gain for using tns TABUL * 100 */ |
| |
| }TNS_CONFIG; |
| |
| |
| typedef struct { |
| Word16 tnsActive; |
| Word32 parcor[TNS_MAX_ORDER]; |
| Word16 predictionGain; |
| } TNS_SUBBLOCK_INFO; /* Word16 size: 26 */ |
| |
| typedef struct{ |
| TNS_SUBBLOCK_INFO subBlockInfo[TRANS_FAC]; |
| } TNS_DATA_SHORT; |
| |
| typedef struct{ |
| TNS_SUBBLOCK_INFO subBlockInfo; |
| } TNS_DATA_LONG; |
| |
| typedef struct{ |
| TNS_DATA_LONG tnsLong; |
| TNS_DATA_SHORT tnsShort; |
| }TNS_DATA_RAW; |
| |
| typedef struct{ |
| Word16 numOfSubblocks; |
| TNS_DATA_RAW dataRaw; |
| }TNS_DATA; /* Word16 size: 1 + 8*26 + 26 = 235 */ |
| |
| typedef struct{ |
| Word16 tnsActive[TRANS_FAC]; |
| Word16 coefRes[TRANS_FAC]; |
| Word16 length[TRANS_FAC]; |
| Word16 order[TRANS_FAC]; |
| Word16 coef[TRANS_FAC*TNS_MAX_ORDER_SHORT]; |
| }TNS_INFO; /* Word16 size: 72 */ |
| |
| #endif /* _TNS_H */ |