ossimVideoHandler.h

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//**************************************************************************************************
//                          OSSIM -- Open Source Software Image Map
//
// LICENSE: See top level LICENSE.txt file.
//
// AUTHOR: Oscar Kramer, GeoEye Inc.
//
// DESCRIPTION: 
// 
//**************************************************************************************************
//  $Id: ossimVideoHandler.h 2650 2011-05-27 16:53:41Z oscar.kramer $

#ifndef ossimVideoHandler_HEADER
#define ossimVideoHandler_HEADER

#include <ossim/base/ossimRefPtr.h>
#include <ossim/video/ossimVideoSource.h>
#include <ossim/base/ossimFilename.h>
#include <ossim/base/ossimIpt.h>
#include <ossim/video/ossimVideoGeometry.h>

//*************************************************************************************************
//*************************************************************************************************
class OSSIMDLLEXPORT ossimVideoHandler : public ossimVideoSource
{
public:
   
   //*************************************************************************************************
   // The following are first declared here in ossimVideoHandler
   //*************************************************************************************************
   virtual bool open(const ossimFilename& videoFile);
   
   virtual bool open() = 0;

   virtual void close() = 0;

   virtual bool isOpen() const = 0;

   const ossimFilename& filename() const { return m_videoFilename; }

   //**********************************************************************************************
   // The following are implementations of ossimVideoSource virtuals:
   //**********************************************************************************************
   virtual void rewind();

   virtual bool seek(ossim_float64 reference_time_sec, SeekType seekType) = 0;

   virtual const ossimRefPtr<ossimVideoGeometry> getVideoGeometry() const {return m_videoGeometry;}

   ossim_float64 currentFrameTime() const { return m_currentFrameTime; }
   
   ossim_float64 videoFrameRate() const { return m_frameRate; };
   
   ossim_float64 duration() const { return m_videoDuration; }

   //**********************************************************************************************
   // The following are implementations of ossimConnectableObject virtuals:
   //**********************************************************************************************
   virtual bool canConnectMyInputTo(ossim_int32, const ossimConnectableObject*) const {return false;}

protected:
   ossimVideoHandler();

   ossimFilename                       m_videoFilename;
   ossimRefPtr<ossimVideoGeometry>     m_videoGeometry;
   ossim_float64                       m_currentFrameTime; 
   mutable ossim_float64               m_videoDuration;    
   ossim_float64                       m_frameRate;        

   TYPE_DATA
};
#endif