MprAudioFrameBuffer.h

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//  
// Copyright (C) 2007 SIPez LLC. 
// Licensed to SIPfoundry under a Contributor Agreement. 
//
// Copyright (C) 2007 SIPfoundry Inc.
// Licensed by SIPfoundry under the LGPL license.
//
// $$

// Author: Dan Petrie <dpetrie AT SIPez DOT com>

#ifndef _MprAudioFrameBuffer_h_
#define _MprAudioFrameBuffer_h_

// SYSTEM INCLUDES

// APPLICATION INCLUDES
#include "mp/MpAudioResource.h"

// DEFINES
// MACROS
// EXTERNAL FUNCTIONS
// EXTERNAL VARIABLES
// CONSTANTS
// STRUCTS
// TYPEDEFS
// FORWARD DECLARATIONS

class MprAudioFrameBuffer : public MpAudioResource
{
/* //////////////////////////// PUBLIC //////////////////////////////////// */
public:

/* ============================ CREATORS ================================== */

   MprAudioFrameBuffer(const UtlString& rName, 
                       int numFramesHistory);

   virtual
   ~MprAudioFrameBuffer();


/* ============================ MANIPULATORS ============================== */



/* ============================ ACCESSORS ================================= */


   OsStatus getFrame(int pastFramesIndex, MpBufPtr& frameBuffer);


/* ============================ INQUIRY =================================== */



/* //////////////////////////// PROTECTED ///////////////////////////////// */
protected:

/* //////////////////////////// PRIVATE /////////////////////////////////// */
private:

   virtual UtlBoolean doProcessFrame(MpBufPtr inBufs[],
                                     MpBufPtr outBufs[],
                                     int inBufsSize,
                                     int outBufsSize,
                                     UtlBoolean isEnabled,
                                     int samplesPerFrame,
                                     int samplesPerSecond);

   MprAudioFrameBuffer(const MprAudioFrameBuffer& rMprAudioFrameBuffer);

   MprAudioFrameBuffer& operator=(const MprAudioFrameBuffer& rhs);

   int mFrameCount;
   int mNumBufferFrames;
   MpBufPtr* mpBufferedFrameArray;

};

/* ============================ INLINE METHODS ============================ */

#endif  // _MprAudioFrameBuffer_h_