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+/******************************** MPEG Audio Encoder **************************
+
+ (C) Copyright Fraunhofer IIS (2001)
+ All Rights Reserved
+
+ Please be advised that this software and/or program delivery is
+ Confidential Information of Fraunhofer and subject to and covered by the
+
+ Fraunhofer IIS Software Evaluation Agreement
+ between Google Inc. and Fraunhofer
+ effective and in full force since March 1, 2012.
+
+ You may use this software and/or program only under the terms and
+ conditions described in the above mentioned Fraunhofer IIS Software
+ Evaluation Agreement. Any other and/or further use requires a separate agreement.
+
+
+ This software and/or program is protected by copyright law and international
+ treaties. Any reproduction or distribution of this software and/or program,
+ or any portion of it, may result in severe civil and criminal penalties, and
+ will be prosecuted to the maximum extent possible under law.
+
+ $Id$
+
+ Initial author: M. Lohwasser
+ contents/description: pns_func.h
+
+******************************************************************************/
+
+#ifndef _PNS_FUNC_H
+#define _PNS_FUNC_H
+
+#include "common_fix.h"
+
+#include "aacenc_pns.h"
+#include "psy_data.h"
+
+
+
+AAC_ENCODER_ERROR FDKaacEnc_InitPnsConfiguration(PNS_CONFIG *pnsConf,
+ INT bitRate,
+ INT sampleRate,
+ INT usePns,
+ INT sfbCnt,
+ const INT *sfbOffset,
+ const INT numChan,
+ const INT isLC );
+
+void FDKaacEnc_PnsDetect( PNS_CONFIG *pnsConf,
+ PNS_DATA *pnsData,
+ const INT lastWindowSequence,
+ const INT sfbActive,
+ const INT maxSfbPerGroup,
+ FIXP_DBL *sfbThresholdLdData,
+ const INT *sfbOffset,
+ FIXP_DBL *mdctSpectrum,
+ INT *sfbMaxScaleSpec,
+ FIXP_SGL *sfbtonality,
+ int tnsOrder,
+ INT tnsPredictionGain,
+ INT tnsActive,
+ FIXP_DBL *sfbEnergyLdData,
+ INT *noiseNrg );
+
+void FDKaacEnc_CodePnsChannel( const INT sfbActive,
+ PNS_CONFIG *pnsConf,
+ INT *pnsFlag,
+ FIXP_DBL *sfbEnergy,
+ INT *noiseNrg,
+ FIXP_DBL *sfbThreshold );
+
+void FDKaacEnc_PreProcessPnsChannelPair( const INT sfbActive,
+ FIXP_DBL *sfbEnergyLeft,
+ FIXP_DBL *sfbEnergyRight,
+ FIXP_DBL *sfbEnergyLeftLD,
+ FIXP_DBL *sfbEnergyRightLD,
+ FIXP_DBL *sfbEnergyMid,
+ PNS_CONFIG *pnsConfLeft,
+ PNS_DATA *pnsDataLeft,
+ PNS_DATA *pnsDataRight );
+
+void FDKaacEnc_PostProcessPnsChannelPair( const INT sfbActive,
+ PNS_CONFIG *pnsConf,
+ PNS_DATA *pnsDataLeft,
+ PNS_DATA *pnsDataRight,
+ INT *msMask,
+ INT *msDigest );
+
+#endif /* _PNS_FUNC_H */