1 files changed, 3 insertions, 200 deletions

diff --git a/Documentation/video4linux/CQcam.txt b/Documentation/video4linux/CQcam.txt
index 464e4cec94cb..ade8651e2443 100644
--- a/Documentation/video4linux/CQcam.txt
+++ b/Documentation/video4linux/CQcam.txt
@@ -185,207 +185,10 @@ this work is documented at the video4linux2 site listed below.
 
 9.0 --- A sample program using v4lgrabber,
 
-This program is a simple image grabber that will copy a frame from the
+v4lgrab is a simple image grabber that will copy a frame from the
 first video device, /dev/video0 to standard output in portable pixmap
-format (.ppm)  Using this like: 'v4lgrab | convert - c-qcam.jpg'
-produced this picture of me at
-    http://mug.sys.virginia.edu/~drf5n/extras/c-qcam.jpg
-
--------------------- 8< ---------------- 8< -----------------------------
-
-/* Simple Video4Linux image grabber. */
-/*
- *      Video4Linux Driver Test/Example Framegrabbing Program
- *
- *      Compile with:
- *              gcc -s -Wall -Wstrict-prototypes v4lgrab.c -o v4lgrab
- *      Use as:
- *              v4lgrab >image.ppm
- *
- *      Copyright (C) 1998-05-03, Phil Blundell <philb@gnu.org>
- *      Copied from http://www.tazenda.demon.co.uk/phil/vgrabber.c
- *      with minor modifications (Dave Forrest, drf5n@virginia.edu).
- *
- */
-
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <sys/ioctl.h>
-#include <stdlib.h>
-
-#include <linux/types.h>
-#include <linux/videodev.h>
-
-#define FILE "/dev/video0"
-
-/* Stole this from tvset.c */
-
-#define READ_VIDEO_PIXEL(buf, format, depth, r, g, b)                   \
-{                                                                       \
-        switch (format)                                                 \
-        {                                                               \
-                case VIDEO_PALETTE_GREY:                                \
-                        switch (depth)                                  \
-                        {                                               \
-                                case 4:                                 \
-                                case 6:                                 \
-                                case 8:                                 \
-                                        (r) = (g) = (b) = (*buf++ << 8);\
-                                        break;                          \
-                                                                        \
-                                case 16:                                \
-                                        (r) = (g) = (b) =               \
-                                                *((unsigned short *) buf);      \
-                                        buf += 2;                       \
-                                        break;                          \
-                        }                                               \
-                        break;                                          \
-                                                                        \
-                                                                        \
-                case VIDEO_PALETTE_RGB565:                              \
-                {                                                       \
-                        unsigned short tmp = *(unsigned short *)buf;    \
-                        (r) = tmp&0xF800;                               \
-                        (g) = (tmp<<5)&0xFC00;                          \
-                        (b) = (tmp<<11)&0xF800;                         \
-                        buf += 2;                                       \
-                }                                                       \
-                break;                                                  \
-                                                                        \
-                case VIDEO_PALETTE_RGB555:                              \
-                        (r) = (buf[0]&0xF8)<<8;                         \
-                        (g) = ((buf[0] << 5 | buf[1] >> 3)&0xF8)<<8;    \
-                        (b) = ((buf[1] << 2 ) & 0xF8)<<8;               \
-                        buf += 2;                                       \
-                        break;                                          \
-                                                                        \
-                case VIDEO_PALETTE_RGB24:                               \
-                        (r) = buf[0] << 8; (g) = buf[1] << 8;           \
-                        (b) = buf[2] << 8;                              \
-                        buf += 3;                                       \
-                        break;                                          \
-                                                                        \
-                default:                                                \
-                        fprintf(stderr,                                 \
-                                "Format %d not yet supported\n",        \
-                                format);                                \
-        }                                                               \
-}
-
-int get_brightness_adj(unsigned char *image, long size, int *brightness) {
-  long i, tot = 0;
-  for (i=0;i<size*3;i++)
-    tot += image[i];
-  *brightness = (128 - tot/(size*3))/3;
-  return !((tot/(size*3)) >= 126 && (tot/(size*3)) <= 130);
-}
-
-int main(int argc, char ** argv)
-{
-  int fd = open(FILE, O_RDONLY), f;
-  struct video_capability cap;
-  struct video_window win;
-  struct video_picture vpic;
-
-  unsigned char *buffer, *src;
-  int bpp = 24, r, g, b;
-  unsigned int i, src_depth;
-
-  if (fd < 0) {
-    perror(FILE);
-    exit(1);
-  }
-
-  if (ioctl(fd, VIDIOCGCAP, &cap) < 0) {
-    perror("VIDIOGCAP");
-    fprintf(stderr, "(" FILE " not a video4linux device?)\n");
-    close(fd);
-    exit(1);
-  }
-
-  if (ioctl(fd, VIDIOCGWIN, &win) < 0) {
-    perror("VIDIOCGWIN");
-    close(fd);
-    exit(1);
-  }
-
-  if (ioctl(fd, VIDIOCGPICT, &vpic) < 0) {
-    perror("VIDIOCGPICT");
-    close(fd);
-    exit(1);
-  }
-
-  if (cap.type & VID_TYPE_MONOCHROME) {
-    vpic.depth=8;
-    vpic.palette=VIDEO_PALETTE_GREY;    /* 8bit grey */
-    if(ioctl(fd, VIDIOCSPICT, &vpic) < 0) {
-      vpic.depth=6;
-      if(ioctl(fd, VIDIOCSPICT, &vpic) < 0) {
-        vpic.depth=4;
-        if(ioctl(fd, VIDIOCSPICT, &vpic) < 0) {
-          fprintf(stderr, "Unable to find a supported capture format.\n");
-          close(fd);
-          exit(1);
-        }
-      }
-    }
-  } else {
-    vpic.depth=24;
-    vpic.palette=VIDEO_PALETTE_RGB24;
-
-    if(ioctl(fd, VIDIOCSPICT, &vpic) < 0) {
-      vpic.palette=VIDEO_PALETTE_RGB565;
-      vpic.depth=16;
-
-      if(ioctl(fd, VIDIOCSPICT, &vpic)==-1) {
-        vpic.palette=VIDEO_PALETTE_RGB555;
-        vpic.depth=15;
-
-        if(ioctl(fd, VIDIOCSPICT, &vpic)==-1) {
-          fprintf(stderr, "Unable to find a supported capture format.\n");
-          return -1;
-        }
-      }
-    }
-  }
-
-  buffer = malloc(win.width * win.height * bpp);
-  if (!buffer) {
-    fprintf(stderr, "Out of memory.\n");
-    exit(1);
-  }
-
-  do {
-    int newbright;
-    read(fd, buffer, win.width * win.height * bpp);
-    f = get_brightness_adj(buffer, win.width * win.height, &newbright);
-    if (f) {
-      vpic.brightness += (newbright << 8);
-      if(ioctl(fd, VIDIOCSPICT, &vpic)==-1) {
-        perror("VIDIOSPICT");
-        break;
-      }
-    }
-  } while (f);
-
-  fprintf(stdout, "P6\n%d %d 255\n", win.width, win.height);
-
-  src = buffer;
-
-  for (i = 0; i < win.width * win.height; i++) {
-    READ_VIDEO_PIXEL(src, vpic.palette, src_depth, r, g, b);
-    fputc(r>>8, stdout);
-    fputc(g>>8, stdout);
-    fputc(b>>8, stdout);
-  }
-
-  close(fd);
-  return 0;
-}
--------------------- 8< ---------------- 8< -----------------------------
+format (.ppm)  To produce .jpg output, you can use it like this:
+'v4lgrab | convert - c-qcam.jpg'
 
 
 10.0 --- Other Information