/* 
 * This Software is the original work of Daniel TUNG 
 * This Software is submitted in partial fulfillment of the 
 * requirements for the degree of BCSE.  
 * Dept. Computer Science, Monash University 2000 
 * 
 *   Copyright (c) 2000 beetung@cs.monash.edu.au 
 * 			beetung@geocities.com 
 * 			beetung@yahoo.com 
 */

#ifndef CCC_STREAMER_H
#define CCC_STREAMER_H

#include <iostream>
#include <fstream>
#include <string>


#include "fastbuf.h"
#include "bttv.h"
#include "semaphore.h"

////
//// This class encapsulate a streamer object. Its main job is to handle 
//// all the streaming video related tasks.
////
// template <class Btype = unsigned char>
/////////////////////////////////////////
class Streamer : public BaseSema {
/////////////////////////////////////////
////
//// More like an Envenlop/Letter method. Implementing it this way
//// minimizes alteration requried when introducing a new capture card.
//// When another capture device comes along, only class BttvCapture is 
//// required to be re-coded.
////
  private:
        MySemaphore aSem;       // this one should die with the object!!!
				// - to synchronize betwn bttv and isRead() 
	BttvCapture bttv;

  public:
	 Streamer();
	~Streamer();

	void*  Capture(void)	 { bttv.StartCapture(); return 0; }
	inline Fastbuf* grab1Frame() { return bttv.mmGrab1Frame(); }


	//----------------------
	Fastbuf& GetCurrentFrame(void) {
	//----------------------
		return bttv.GetCurrentFrame();
	}

	/// block until a frame is ready as indicated 
	/// by the semaphore
	//---------------------
	void   block (void) { SemWait();}
	void isReady (void) { SemWait();}
	//---------------------

	//// not using this at the moment
	//---------------------
	void *run(void) { isReady(); return 0;}
	//---------------------
};





/*

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////
//// This class encapsulate a single frame along with its buffers
//// and operations
////
template <class Btype = unsigned char>
/////////////////////////////////////////
class Frame {
/////////////////////////////////////////

  enum { GRABBER_BUFFER_SIZE_32BPP = 288*384*4 };

  private:
    const bool bAlloc;	// buf allocated by *this?
    const  int bsize;	// bufsize
    const  int xSize, ySize;	// size of buffer in terms of x,y

 	Btype *buffer;	// where to put image
	 bool captured;	// capture completed?
	  int frame_id;	// this frame id, (0-->30)

  public:
	//--------------------
	  Frame() : bsize(GRABBER_BUFFER_SIZE_32BPP),bAlloc(true),
		    xSize(384),ySize(288),captured(false), frame_id(frameCount()++) {
	//--------------------
//	  cout << "ID: " << frame_id << endl;
	  buffer = new Btype [bsize];
	}

	//--------------------
	 Frame(Btype b) : captured(false), frame_id(frameCount()++),bAlloc(false),
			  buffer(b) {
	//--------------------
//	  cout << "ID: " << frame_id << endl;
	}

	//--------------------
	 Frame(unsigned char * b) : captured(false), frame_id(frameCount()++),bAlloc(false),
			  buffer((unsigned char*) b) {
	//--------------------
//	  cout << "ID: " << frame_id << endl;
	}

	//--------------------
	  ~Frame() {
	//--------------------
	/// must delete buffer obviously!!!
	  if (bAlloc) delete [] buffer;
	}

	///
	/// reset flag so indicate as not-captured...
	///
	//--------------------
	 void reset(void) { captured = false; }
	//--------------------

	///
	/// Various overloaded operators...
	///
	//--------------------
	operator bool (void) { return captured; }
	//--------------------

	//--------------------
	int* operator= (const Frame<Btype> &b) {
	//--------------------
	return (int*) &buf[0];
	}

	//--------------------
	static int& frameCount() {
	//--------------------
	  static int fCount =0;
	  return fCount;
	}
};


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*/
#endif