#ifndef YUV_FRAME_H_
#define YUV_FRAME_H_

#include <stdio.h>
#include "datatypes.h"

#define YROWS 288
#define YCOLS 352
#define UROWS 144
#define UCOLS 176
#define VROWS 144
#define VCOLS 176

class yuv_frame
{
  /* functions */
 public:
  /* constructor will create an empty yuv frame with given size
   * or otherwise with default cif size
   * note that this function will allocate space for the yuv arrays
   */
  yuv_frame::yuv_frame(int yrows = YROWS, int ycols = YCOLS);

  /* constructor will create yuv frame of given size and initialize
   * the yuv components to the arrays given
   */
  yuv_frame::yuv_frame(uint8* the_y_component, uint8* the_u_component,
		       uint8* the_v_component,
		       int yrows = YROWS, int ycols = YCOLS);

  /* constructor builds a yuv_frame by reading frame from file
   * returns on status variable either true for successful read
   * or false on empty file
   * if file contains partial data, function will terminate with error
   */
  yuv_frame(FILE*& fp, uint8& status, int yrows = YROWS, int ycols = YCOLS);

  /* destructor: clear memory
   */
  yuv_frame::~yuv_frame();

  void write_ycomponent_to_file(char* filename, char* comment);

  /* return the number of rows */
  int get_num_rows();

  /* return the number of columns */
  int get_num_cols();

  /* variables */
 public:
  /* y_component, u_component and v_component arrays begin from top
   * left of image, first along cols and then along rows
   *     1 -> 2 -> 3 -> 4
   *     5 -> 6 -> ...
   */
  //uint8* y_component;
  //uint8* u_component;
  //uint8* v_component;
  uint8 y_component[25344];
  uint8 u_component[6336];
  uint8 v_component[6336];

  /* number of rows and columns for y component. u and v components
   * will contains num_rows/2 and num_cols/2 rows and columns
   * respectively.
   */
  uint32 num_rows;
  uint32 num_cols;
};

#endif