#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
//#include?
#include?

#include?“camerainit.h“

static?int?fd?=?-1;

struct?buffer?{
????????void?*??????????????????start;
????????size_t??????????????????length;
};

//static?io_method????????io??????????????=?IO_METHOD_MMAP;

struct?buffer?*?????????buffers1?????????=?NULL;
static?unsigned?int?????n_buffers???????=?0;

//?global?settings

static?unsigned?int?width?=?800;
static?unsigned?int?height?=?480;
static?char*?deviceName?=?“/dev/video0“;
char?image_buf[1536000+54];

unsigned?char?bmp_h[]?={
????????????????0x420x4d?//BM
????????????????0x420x700x170x00?//?172000+66
????????????????0x000x000x000x00
????????????????0x360x000x000x00??//bmp_data?offset
????????????????0x280x000x000x00
????????????????0x200x030x000x00???//width
????????????????0xE00x010x000x00???//hieght
????????????????0x010x00
????????????????0x200x00???//32bit
????????????????0x000x000x000x00
????????????????0x000x700x170x00??//bmp_data?size
????????????????0x000x000x000x00
????????????????0x000x000x000x00
????????????????0x000x000x000x00
????????????????0x000x000x000x00
};

void?deviceOpen（void）
{
????fd?=?open（deviceName?O_RDWR?/*?required?*/?|?O_NONBLOCK?0）;

????//?check?if?opening?was?successfull
????if?（-1?==?fd）
????{
??????????fprintf（stderr?“Cannot?open?‘%s‘:?%d?%s\n“?deviceName?errno?strerror?（errno））;
??????????//exit（EXIT_FAILURE）;??//liaoxp?20140216
????}
}

/**
??initialize?device
*/
void?deviceInit（void）
{
????struct?v4l2_capability?cap;
????struct?v4l2_cropcap?cropcap;
????struct?v4l2_crop?crop;
????struct?v4l2_format?fmt;

????unsigned?int?min;

????if?（-1?==?xioctl（fd?VIDIOC_QUERYCAP?&cap））
????{
????????if?（EINVAL?==?errno）
????????{
????????????fprintf（stderr?“%s?is?no?V4L2?device\n“deviceName）;
????????????exit（EXIT_FAILURE）;
????????}?else
????????{
????????????errno_exit（“VIDIOC_QUERYCAP“）;
????????}
????}

????if?（!（cap.capabilities?&?V4L2_CAP_VIDEO_CAPTURE））
????{
????????fprintf（stderr?“%s?is?no?video?capture?device\n“deviceName）;
????????exit（EXIT_FAILURE）;
????}

????struct?v4l2_input?input;
????input.index?=?0;
????if?（?ioctl（fd?VIDIOC_ENUMINPUT?&input）?!=?0）
????{
????????printf（“?set?input?error.\n“）;
????????exit（0）;
????}

????if?（（ioctl（fd?VIDIOC_S_INPUT?&input））?????{
????????printf（“set?s_input?error.\n“）;
????????exit（0）;
????}

????/*?Select?video?input?video?standard?and?tune?here.?*/
????CLEAR（cropcap）;

????cropcap.type?=?V4L2_BUF_TYPE_VIDEO_CAPTURE;

????if?（0?==?xioctl（fd?VIDIOC_CROPCAP?&cropcap））
????{
??????????crop.type?=?V4L2_BUF_TYPE_VIDEO_CAPTURE;
??????????crop.c?=?cropcap.defrect;?/*?res

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????603017??2018-10-18?16:17??IOT128\1.png

?????文件?????603017??2018-10-18?16:29??IOT128\final\1.png

?????文件???????9217??2018-10-23?17:26??IOT128\final\camerainit.cpp

?????文件????????501??2018-10-23?17:26??IOT128\final\camerainit.h

?????文件???????6920??2018-10-23?17:22??IOT128\final\camerainit.o

?????文件????????993??2018-10-23?17:27??IOT128\final\constant.h

?????文件????????230??2018-10-16?22:43??IOT128\final\enddevice.cpp

?????文件????????300??2018-10-16?22:43??IOT128\final\enddevice.h

?????文件???????1348??2018-10-23?17:35??IOT128\final\enddevice.o

?????文件?????712638??2018-10-23?17:35??IOT128\final\Intelligent

?????文件????????799??2018-10-23?17:30??IOT128\final\Intelligent.pro

?????文件??????14147??2018-10-23?17:35??IOT128\final\Intelligent.pro.user

?????文件??????????0??2018-10-18?22:39??IOT128\final\Intelligent.pro.user.1.3

?????文件????????182??2018-10-16?22:43??IOT128\final\main.cpp

?????文件???????1604??2018-10-23?17:35??IOT128\final\main.o

?????文件??????17201??2018-10-23?17:34??IOT128\final\mainwindow.cpp

?????文件???????2390??2018-10-23?17:34??IOT128\final\mainwindow.h

?????文件??????55708??2018-10-23?17:35??IOT128\final\mainwindow.o

?????文件???????9674??2018-10-18?19:18??IOT128\final\mainwindow.ui

?????文件??????14338??2018-10-23?17:31??IOT128\final\Makefile

?????文件????????236??2018-10-16?22:43??IOT128\final\messagequeue.cpp

?????文件????????238??2018-10-16?22:43??IOT128\final\messagequeue.h

?????文件???????1688??2018-10-23?17:35??IOT128\final\messagequeue.o

?????文件???????2331??2018-10-23?17:35??IOT128\final\moc_enddevice.cpp

?????文件???????4128??2018-10-23?17:35??IOT128\final\moc_enddevice.o

?????文件???????6160??2018-10-23?17:35??IOT128\final\moc_mainwindow.cpp

?????文件??????11412??2018-10-23?17:35??IOT128\final\moc_mainwindow.o

?????文件???????3098??2018-10-23?17:35??IOT128\final\moc_mythread.cpp

?????文件???????5056??2018-10-23?17:35??IOT128\final\moc_mythread.o

?????文件???????3097??2018-10-23?17:35??IOT128\final\moc_qextserialbase.cpp

............此處省略47個文件信息