#include?
#include?
#include?
#include?
#include?
#include?
#include???
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include??
#include?
#include?“jpg.h“
#include?“capture.h“
#include?“h264encoder.h“

struct?buffer?*?buffers?=?NULL;
static?unsigned?int?n_buffers?=?0;
static?char?*video_name=“/dev/video0“;
static?int?video_fd??=?-1;
int?h264_fd;
//static?unsigned?int?number?=?0;

//static?unsigned?long?file_length;
//static?unsigned?char?*file_name;

Encoder?en;
uint8_t?*h264_buf?=?NULL;
int?count_flag?=?1;


void?open_video_device?（void）??????//創(chuàng)建視頻文件，打開(kāi)攝像頭。
{
?????
	
	struct?stat?st;?//store?the?device?information

	//get?the?device?information?
	if?（-1?==?stat（video_name&st））
	{
		fprintf（stderr?“?Cannot?identify?‘%s‘:?%d??%s\n“
			video_nameerrnostrerror（errno））;
		exit（EXIT_FAILURE）;
	}

	//?test?the?device?is?or?isn‘t?a?special?character?file?
	//?because?the?camera?device?is?a?charcter?file?on?linux
	if?（!S_ISCHR（st.st_mode））//if?it?isn‘t?character?file?enter?if
	{
		fprintf（stderr“%s?is?no?device?\n“video_name）;
		exit（EXIT_FAILURE）;
	}

	//open?device?on?the?read??write?and?nonblock?mode???
	if?（-1?==?（video_fd?=?open（video_nameO_RDWR?|?O_NONBLOCK0）））
	{
		fprintf（stderr“Cannot?open?‘%s‘?:?‘%d‘%s?\n“
			video_nameerrnostrerror（errno））;
		exit（EXIT_FAILURE）;
	}
	else?
		printf（“camera?device?is?open?OK?!?camera?name?is?%s?\n“
			video_name）;
	
}

void?query_video_device?（void）
{
	struct?v4l2_capability?????cap;
	/*?It?is?used?to?identify?kernel?devices?compatible?with?this?specification?and?to?abtain?information?about?driver?and?hardware?capabilities*/
	if?（-1?==?ioctl?（video_fd?VIDIOC_QUERYCAP&cap））???/*?獲取設(shè)備支持的操作?*/?
	{
		perror（“VIDIOC_QUERYCAP:“）;	
		exit?（EXIT_FAILURE）;
	}
	//其中域?capabilities?代表設(shè)備支持的操作模式，
	//常見(jiàn)的值有?V4L2_CAP_VIDEO_CAPTURE?|?V4L2_CAP_STREAMING?表示是一個(gè)視頻捕捉設(shè)備并且具有數(shù)據(jù)流控制模式；
	//另外?driver?域需要和?struct?video_device?中的?name?匹配。
	if?（!（cap.capabilities?&?V4L2_CAP_VIDEO_CAPTURE））????
	{
		fprintf（stderr?“%s?is?no?video?capture?device\n“video_name）;
		exit（EXIT_FAILURE）;
	}
	else?
	{
		printf（“%s?is?a?video?capture?device!\n“video_name）;
	}	
	if?（!（cap.capabilities?&?V4L2_CAP_READWRITE））
	{
		fprintf（stderr?“%s?does?not?support?read?i/o\n“video_name）;
	}
	else?
	{
		printf（“%s?support?read?i/o?!\n“video_name）;
	}
	
	if?（!（cap.capabilities?&?V4L2_CAP_STREAMING））
	{
		fprintf（stderr“%s?does?not?support?streaming?i/o\n“video_name）;
	}
	else
	{
		printf（“%s?supports?streaming?i/o?method!\n“video_name）;
	}
	printf（“The?driver?name?is?%s\n“cap.driver）;
	printf（“The?device?name?is?%s\n“cap.card）;
	printf（“The?device?bus?is?%s\n“cap.bus_info）;
}

void?change_video_properties（void）????//?設(shè)置特性
{
	struct?v4l2_cropcap?cropcap;
	struct?v4l2_crop??crop;
	
	CLEAR（cropcap）;
	cropcap.type?=?V4L2_

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件????1069831??2013-12-13?16:10??farsight_camera_arm\bin\cl_camera

?????文件??????12408??2013-12-09?14:03??farsight_camera_arm\capture.c

?????文件????????575??2013-12-02?11:45??farsight_camera_arm\capture.h

?????文件??????40212??2013-12-13?16:10??farsight_camera_arm\capture.o

?????文件???????3045??2013-12-01?16:14??farsight_camera_arm\h264encoder.c

?????文件????????574??2012-11-13?20:51??farsight_camera_arm\h264encoder.h

?????文件??????17104??2013-12-13?16:10??farsight_camera_arm\h264encoder.o

?????文件???????1616??2013-11-23?16:02??farsight_camera_arm\include\jconfig.h

?????文件??????12714??2009-11-20?16:01??farsight_camera_arm\include\jmorecfg.h

?????文件??????48475??2009-11-16?19:44??farsight_camera_arm\include\jpeglib.h

?????文件??????40915??2013-12-02?13:23??farsight_camera_arm\include\x264.h

?????文件????????245??2012-04-17?13:43??farsight_camera_arm\include\x264_config.h

?????文件???????3583??2013-12-02?09:42??farsight_camera_arm\jpg.c

?????文件????????940??2013-12-13?16:10??farsight_camera_arm\jpg.h

?????文件??????19024??2013-12-13?16:10??farsight_camera_arm\jpg.o

?????文件????1096477??2013-11-23?16:07??farsight_camera_arm\lib\libjpeg.so

?????文件????1115908??2012-11-15?15:27??farsight_camera_arm\lib\libx264.a

?????文件????1046287??2012-11-15?15:27??farsight_camera_arm\lib\libx264.so.120

?????文件????1115908??2012-11-15?15:27??farsight_camera_arm\lib\pkgconfig\libx264.a

?????文件????1046287??2012-11-15?15:27??farsight_camera_arm\lib\pkgconfig\libx264.so

?????文件????1046287??2012-11-15?15:27??farsight_camera_arm\lib\pkgconfig\libx264.so.120

?????文件????????278??2012-11-15?15:27??farsight_camera_arm\lib\pkgconfig\x264.pc

?????文件???????1533??2013-12-02?11:37??farsight_camera_arm\main.c

?????文件???????5624??2013-12-13?16:10??farsight_camera_arm\main.o

?????文件????????315??2013-12-02?13:34??farsight_camera_arm\Makefile

?????文件??????34381??2013-11-26?21:00??farsight_camera_arm\tags

?????目錄??????????0??2013-12-18?18:41??farsight_camera_arm\lib\pkgconfig

?????目錄??????????0??2013-12-18?18:41??farsight_camera_arm\bin

?????目錄??????????0??2013-12-18?18:41??farsight_camera_arm\include

?????目錄??????????0??2013-12-18?18:41??farsight_camera_arm\lib

............此處省略4個(gè)文件信息