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/*
** 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_func.h
Content: TNS functions
*******************************************************************************/
/*
Temporal noise shaping
*/
#ifndef _TNS_FUNC_H
#define _TNS_FUNC_H
#include "typedef.h"
#include "psy_configuration.h"
Word16 InitTnsConfigurationLong(Word32 bitrate,
Word32 samplerate,
Word16 channels,
TNS_CONFIG *tnsConfig,
PSY_CONFIGURATION_LONG *psyConfig,
Word16 active);
Word16 InitTnsConfigurationShort(Word32 bitrate,
Word32 samplerate,
Word16 channels,
TNS_CONFIG *tnsConfig,
PSY_CONFIGURATION_SHORT *psyConfig,
Word16 active);
Word32 TnsDetect(TNS_DATA* tnsData,
TNS_CONFIG tC,
Word32* pScratchTns,
const Word16 sfbOffset[],
Word32* spectrum,
Word16 subBlockNumber,
Word16 blockType,
Word32 * sfbEnergy);
void TnsSync(TNS_DATA *tnsDataDest,
const TNS_DATA *tnsDataSrc,
const TNS_CONFIG tC,
const Word16 subBlockNumber,
const Word16 blockType);
Word16 TnsEncode(TNS_INFO* tnsInfo,
TNS_DATA* tnsData,
Word16 numOfSfb,
TNS_CONFIG tC,
Word16 lowPassLine,
Word32* spectrum,
Word16 subBlockNumber,
Word16 blockType);
void ApplyTnsMultTableToRatios(Word16 startCb,
Word16 stopCb,
TNS_SUBBLOCK_INFO subInfo,
Word32 *thresholds);
#endif /* _TNS_FUNC_H */
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