[media] Remove the old V4L1 v4lgrab.c file (55fe25b4) · Commits · e / devices / android_kernel_xiaomi_markw

Documentation/Makefile

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	obj-m := DocBook/ accounting/ auxdisplay/ connector/ \		obj-m := DocBook/ accounting/ auxdisplay/ connector/ \
	filesystems/ filesystems/configfs/ ia64/ laptops/ networking/ \		filesystems/ filesystems/configfs/ ia64/ laptops/ networking/ \
	pcmcia/ spi/ timers/ video4linux/ vm/ watchdog/src/		pcmcia/ spi/ timers/ vm/ watchdog/src/

obj-m := DocBook/ accounting/ auxdisplay/ connector/ \

obj-m := DocBook/ accounting/ auxdisplay/ connector/ \

	filesystems/ filesystems/configfs/ ia64/ laptops/ networking/ \

	filesystems/ filesystems/configfs/ ia64/ laptops/ networking/ \

	pcmcia/ spi/ timers/ video4linux/ vm/ watchdog/src/

	pcmcia/ spi/ timers/ vm/ watchdog/src/

Documentation/video4linux/Makefile

deleted100644 → 0

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	# kbuild trick to avoid linker error. Can be omitted if a module is built.
	obj- := dummy.o

	# List of programs to build
	hostprogs-y := v4lgrab

	# Tell kbuild to always build the programs
	always := $(hostprogs-y)

Documentation/video4linux/v4lgrab.c

deleted100644 → 0

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	/* 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).
	*
	*
	* For some cameras you may need to pre-load libv4l to perform
	* the necessary decompression, e.g.:
	*
	* export LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so
	* ./v4lgrab >image.ppm
	*
	* see http://hansdegoede.livejournal.com/3636.html for details.
	*
	*/

	#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 VIDEO_DEV "/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); \
	} \
	}

	static 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/(size3))/3;
	return !((tot/(size3)) >= 126 && (tot/(size3)) <= 130);
	}

	int main(int argc, char ** argv)
	{
	int fd = open(VIDEO_DEV, O_RDONLY), f;
	struct video_capability cap;
	struct video_window win;
	struct video_picture vpic;

	unsigned char buffer, src;
	int bpp = 24, r = 0, g = 0, b = 0;
	unsigned int i, src_depth = 16;

	if (fd < 0) {
	perror(VIDEO_DEV);
	exit(1);
	}

	if (ioctl(fd, VIDIOCGCAP, &cap) < 0) {
	perror("VIDIOGCAP");
	fprintf(stderr, "(" VIDEO_DEV " 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;
	}