widget.h头文件代码

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>

#include <jpeglib.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <getopt.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <malloc.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <asm/types.h>
#include <linux/videodev2.h>

#include<QImage>
#include<QDebug>
#include<QTimer>
#define CAMERA_DEVICE "/dev/video0"
#define CAPTURE_FILE "yuyv.dat"

#define VIDEO_WIDTH 640
#define VIDEO_HEIGHT 480
#define VIDEO_FORMAT V4L2_PIX_FMT_YUYV
#define BUFFER_COUNT 1

typedef struct VideoBuffer {
    void   *start;
    size_t  length;
} VideoBuffer;


typedef long LONG;
typedef unsigned long DWORD;
typedef unsigned short WORD;

typedef struct {
            WORD    bfType;
            DWORD   bfSize;
            WORD    bfReserved1;
            WORD    bfReserved2;
            DWORD   bfOffBits;
} BMPFILEHEADER_T;

typedef struct{
            DWORD      biSize;
            LONG       biWidth;
            LONG       biHeight;
            WORD       biPlanes;
            WORD       biBitCount;
            DWORD      biCompression;
            DWORD      biSizeImage;
            LONG       biXPelsPerMeter;
            LONG       biYPelsPerMeter;
            DWORD      biClrUsed;
            DWORD      biClrImportant;
} BMPINFOHEADER_T;
namespace Ui {
class Widget;
}

class Widget : public QWidget
{
    Q_OBJECT
    
public:
    explicit Widget(QWidget *parent = 0);
    ~Widget();
    int Camera_RequestBuffers(struct v4l2_requestbuffers *reqbuf__);
    int convert_yuv_to_rgb_pixel(int y, int u, int v);
    void Camera_RecordYUYV(struct v4l2_buffer *buf_,int width,int height);
    int Camera_EnQueueBuffer(struct v4l2_buffer *buf_);
    int Camera_DeQueueBufferGetFrame( struct v4l2_buffer *buf_);
    int Camera_StartCameraStreaming();
    void Camera_UNMap(VideoBuffer *framebuf_);
    int Camera_MapAndEnqueue(struct v4l2_requestbuffers *reqbuf__, struct v4l2_buffer *buf__,VideoBuffer *framebuf_);
    int Camera_SetCamFMT();
    int Camera_GetCamInfo();
    int Camera_OpenCam();
    void savebmp(unsigned char * pdata, int width, int height );
    void trans_picture(int width,int height);
    int Camera_CloseCam();
    int convert_yuv_to_rgb_buffer(unsigned char *yuv, unsigned char *rgb, unsigned int width,unsigned int height);
     int fd_cam ;
     struct v4l2_requestbuffers reqbuf;

     struct v4l2_buffer buf;
     VideoBuffer framebuf1[BUFFER_COUNT];
     QTimer* time1;

 public slots:
     void DisplayVideo();
private:
    Ui::Widget *ui;
};

#endif // WIDGET_H
#ifndef WIDGET_H
#define WIDGET