spcav4l.h

linux下用c语言写的一个图像抓拍程序。

/****************************************************************************
Mouse-capture Version 1:2006-6-29
This program is used to get one picture from a jpeg webcam to test whether the webcam's drive is successfully installed.
It is made for ARM9.Of course it can be used on PC if you modify the complier:)
It is modified from servfox by daily3(戴丽-戴小鼠 in Hefei University of Technology and HHCN-BBS).
Thanks to 我爱狗熊.
If you have problems ,you can contact me.
Email:[e-mail]
Wish you some useful help!
Best Wish to the orignal authors! Thank you very much!
****************************************************************************/

#ifndef SPCAV4L_H
#define SPCAV4L_H 
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <stdarg.h>
#include <linux/types.h>
#include <linux/videodev.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <sys/types.h>
#include <sys/stat.h>

#define VIDEO_PALETTE_JPEG 21
#define BRIDGE_ZC3XX 0
#define MAX_BRIDGE 2
#define JPEG 0
#define UNOW 1

struct bridge_list {
	int num;
	const char *name;
};
	
struct vdIn {
	int fd;
	char *videodevice ;
	struct video_mmap vmmap;
	struct video_capability videocap;
	int mmapsize;
	struct video_mbuf videombuf;
	struct video_picture videopict;
	struct video_channel videochan;	
	int cameratype ;
	char *cameraname;
	char bridge[9];
	int palette; // available palette
	int grabMethod ;
	unsigned char *pFramebuffer;
	unsigned char *ptframe;
	int framesizeIn ;
	int bppIn;
	int  hdrwidth;
	int  hdrheight;
	int  formatIn;
	};
	
int init_videoIn(struct vdIn *vd,char *device,int width,int height,int format,int grabmethod);
int v4lGrab (struct vdIn *vd,char *filename );
int close_v4l (struct vdIn *vd);
int get_jpegsize (unsigned char *buf, int insize);
void exit_fatal(char *messages);

#endif /* SPCAV4L_H */