MpodOss.h

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//
// Copyright (C) 2007-2017 SIPez LLC.
//
//
// $$

// Author: Sergey Kostanbaev <Sergey DOT Kostanbaev AT sipez DOT com>

#ifndef _MpodOss_h_
#define _MpodOss_h_

// SYSTEM INCLUDES
#include <pthread.h>
#include <semaphore.h>

#ifdef __linux__
#include <sys/types.h>
#include <sys/soundcard.h>
#endif // __linux__


// APPLICATION INCLUDES
#include "mp/MpOutputDeviceDriver.h"
#include "mp/MpOss.h"


// MACROS
// EXTERNAL FUNCTIONS
// EXTERNAL VARIABLES
// CONSTANTS
// STRUCTS
// TYPEDEFS
// FORWARD DECLARATIONS
class MpOutputDeviceManager;


class MpodOss : public MpOutputDeviceDriver
{
    friend class MpOss;
/* //////////////////////////// PUBLIC //////////////////////////////////// */
public:

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


   MpodOss(const UtlString& name);
   ~MpodOss();


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


   OsStatus enableDevice(unsigned samplesPerFrame,
                         unsigned samplesPerSec,
                         MpFrameTime currentFrameTime,
                         OsCallback &frameTicker);

   OsStatus disableDevice();

   OsStatus pushFrame(unsigned int numSamples,
                      const MpAudioSample* samples,
                      MpFrameTime frameTime);

   OsStatus setNotificationMode(UtlBoolean bThreadNotification);


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



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


   virtual OsStatus canEnable();
   /* @see MpOutputDeviceDriver::canEnable */

   inline UtlBoolean isDeviceValid();


/* //////////////////////////// PROTECTED ///////////////////////////////// */
protected:
   MpAudioSample* mAudioFrame;  
   MpFrameTime mCurrentFrameTime; 
   UtlBoolean mNotificationThreadEn;

   MpOssContainer* mpCont; 

   OsStatus signalForNextFrame();

   void skipFrame();

/* //////////////////////////// PRIVATE /////////////////////////////////// */
private:
   MpOss *pDevWrapper;

   MpodOss(const MpodOss& rMpOutputDeviceDriver);

   MpodOss& operator=(const MpodOss& rhs);


};

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

UtlBoolean MpodOss::isDeviceValid()
{
   //printf("MpRsOdOss::isDeviceValid()\n"); fflush(stdout);
   return ((pDevWrapper != NULL) && pDevWrapper->isDeviceValid());
}

#endif  // _MpodOss_h_