#include <stdio.h>
#include <fcntl.h>
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <strings.h>

extern const char *__progname;

static const char *videodev = "viddev";

#define MAXFRAMEBYTES (100<<20)
#define MAXFRAMES 100

static int vfd;
static unsigned char framebuf[MAXFRAMEBYTES];
static unsigned char *frames[MAXFRAMES];
static unsigned int framelens[MAXFRAMES];

static void open_video(void)
{
 vfd = open(videodev,O_RDWR,0);
 if (vfd < 0)
  { fprintf(stderr,"%s: %s: %s\n",__progname,videodev,strerror(errno));
    exit(1);
  }
}

int main(void);
int main(void)
{
 int i;
 int o;
 int l;
 int l0;

 open_video();
 o = 0;
 l0 = 0;
 for (i=0;i<MAXFRAMES;i++)
  { if ((l0 > 0) && (o+l0 > MAXFRAMEBYTES)) break;
    l = read(vfd,&framebuf[o],MAXFRAMEBYTES-o);
    if (l < 0)
     { fprintf(stderr,"%s: %s: read: %s\n",__progname,videodev,strerror(errno));
       exit(1);
     }
    if (l == 0)
     { fprintf(stderr,"%s: %s: read EOF\n",__progname,videodev);
       exit(1);
     }
    if (o == 0) l0 = l;
    frames[i] = &framebuf[o];
    framelens[i] = l;
    o += l;
    write(2,".",1);
  }
 write(1,frames[i-1],framelens[i-1]);
 return(0);
}