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