lgrPlaybackMedia.h

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/******************************************************************************
** Copyright (c) 1992-2016 VT MAK
** All rights reserved.
******************************************************************************/


#pragma once

#ifdef GST_ENABLED

#include <lgrCore/lgrPlaybackOperation.h>

class DtString;

namespace MAKLogger
{
   class DtLogger;
   class DtLgrPlaybackDriver;
   class DtLgrGStreamerPipeline;
   class DtLgrPlaybackInterface;

   class DT_DLL_LGRCORE DtLgrPlaybackMedia : public DtLgrPlaybackOperation
   {
   public:

      static double theSyncThreshold;

      DtLgrPlaybackMedia(DtLogger& logger, DtLgrPlaybackDriver* playbackDriver, double offset);

      virtual ~DtLgrPlaybackMedia();

      virtual bool configureOperation(const DtString& pipelineConfiguration,
         const DtString& tapeFilePath);

      virtual void commandOperation();


      void playbackStateChanged(const bool& state);

      void pausedChanged(const bool& isPaused);

      void playbackSpeedChanged(const double& speed);

      void jumpTimeChanged(const DtAbsoluteTime& jumpTime);


   protected:

      virtual void setSynchronizeThreshold(double speed);

      virtual void synchronize();


      virtual void doPlaybackStateChange(const bool& state);

      virtual void doPlaybackSpeedChange(const double& speed);

      virtual bool doJumpTime(const DtAbsoluteTime& jumpTime);


   protected:

      DtLgrGStreamerPipeline* myGstreamerPipeline;

      double myOffset;
      double mySpeed;
      bool myJumpFailed;
      double myLastTime;
      double mySyncThreshold;
      bool mySyncPause;
   };
}

#endif   // GST_ENABLED