MprFromInputDevice.h

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//  
// Copyright (C) 2007-2013 SIPez LLC.  All rights reserved.
//
// Copyright (C) 2007-2008 SIPfoundry Inc.
// Licensed by SIPfoundry under the LGPL license.
//
// $$

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

#ifndef _MprFromInputDevice_h_
#define _MprFromInputDevice_h_

// SYSTEM INCLUDES

// APPLICATION INCLUDES
#include <mp/MpAudioResource.h>
#include <mp/MpResampler.h>
#include <mp/MpResourceMsg.h>
#include <mp/MpBridgeAlgBase.h> // For MpBridgeGain type

// DEFINES
// MACROS
// EXTERNAL FUNCTIONS
// EXTERNAL VARIABLES
// CONSTANTS
// STRUCTS
// TYPEDEFS
// FORWARD DECLARATIONS
class MpInputDeviceManager;
class MpIntResourceMsg;

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

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


   MprFromInputDevice(const UtlString& rName, 
                      MpInputDeviceManager* deviceManager,
                      MpInputDeviceHandle deviceId);

   virtual
   ~MprFromInputDevice();


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


   static OsStatus setDeviceId(const UtlString& resourceName,
                               OsMsgQ& flowgraphMessageQueue,
                               MpInputDeviceHandle deviceId);
   static OsStatus setGain(const UtlString& namedResource, 
                           OsMsgQ& fgQ,
                           MpBridgeGain gain);

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



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



/* //////////////////////////// PROTECTED ///////////////////////////////// */
protected:
    UtlBoolean handleSetInputDeviceId(const MpIntResourceMsg& message);

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

   typedef enum
   {
      MPRM_SET_GAIN = MpResourceMsg::MPRM_EXTERNAL_MESSAGE_START,
      MPRM_SET_INPUT_DEVICE_ID,
   } AddlMsgTypes;

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

   MpInputDeviceManager* mpInputDeviceManager;
   UtlBoolean mFrameTimeInitialized;
   MpFrameTime mPreviousFrameTime;
   MpInputDeviceHandle mDeviceId;
   MpResamplerBase *mpResampler;
   MpBridgeGain mGain;
   MpBridgeAccum *mpGainBuffer;

   virtual UtlBoolean handleMessage(MpResourceMsg& rMsg);

   virtual UtlBoolean handleSetGain(MpBridgeGain gain);
   MprFromInputDevice(const MprFromInputDevice& rMprFromInputDevice);

   MprFromInputDevice& operator=(const MprFromInputDevice& rhs);

};

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

#endif  // _MprFromInputDevice_h_