/*

Copyright (C) 2016 Apple Inc. All Rights Reserved.

See LICENSE.txt for this sample’s licensing information

Abstract:

Part of Core Audio AUBase Classes

*/

#ifndef __AUSilentTimeout

#define __AUSilentTimeout

class AUSilentTimeout

{

public:

    AUSilentTimeout()

        :   mTimeoutCounter(0),

            mResetTimer(true)

                {};

    void                Process(UInt32 inFramesToProcess, UInt32 inTimeoutLimit, bool &ioSilence )

    {

        if(ioSilence )

        {

            if(mResetTimer )

            {

                mTimeoutCounter = inTimeoutLimit;

                mResetTimer = false;

            }

            if(mTimeoutCounter > 0 )

            {

                mTimeoutCounter -= inFramesToProcess;

                ioSilence = false;

            }

        }

        else

        {

            // signal to reset the next time we receive silence

            mResetTimer = true; 

        }

    }

    void                Reset()

    {

        mResetTimer = true;

    };

private:

    SInt32              mTimeoutCounter;

    bool                mResetTimer;

};

#endif // __AUSilentTimeout