Dr. Wael Badawy, P. Eng.

Here is a C code to read 2 frames from the QCIF file

unsigned char y0[144][176]; // the y 
unsigned char cr0[72][88]; // the cr 
unsigned char cb0[72][88]; // the cb 
unsigned char y1[144][176]; // the y 
unsigned char cr1[72][88]; // the cr 
unsigned char cb1[72][88]; // the cb 

int fd; // pointer to the input file

// read two frames
void read2frames()
{ 
 // Open the I/P file 
   fd = open ("claire5.qcif", O_RDONLY) ;
 // Read the first frame 
   read (fd, y0, 144*176);
   read (fd, cr0, 72*88);
   read (fd, cb0, 72*88);

 // Read the second frame 
   read (fd, y1, 144*176);
   read (fd, cr1, 72*88);
   read (fd, cb1, 72*88);
}