media/libstagefright/codecs/aacenc/inc/pre_echo_control.h

/*
 ** 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:		pre_echo_control.h

	Content:	Pre echo control functions

*******************************************************************************/

#ifndef __PRE_ECHO_CONTROL_H
#define __PRE_ECHO_CONTROL_H

#include "typedefs.h"

void InitPreEchoControl(Word32 *pbThresholdnm1,
                        Word16  numPb,
                        Word32 *pbThresholdQuiet);


void PreEchoControl(Word32 *pbThresholdNm1,
                    Word16  numPb,
                    Word32  maxAllowedIncreaseFactor,
                    Word16  minRemainingThresholdFactor,
                    Word32 *pbThreshold,
                    Word16  mdctScale,
                    Word16  mdctScalenm1);

#endif