encode.cpp

/******** encode.cpp ********/
#include <iostream>
#include <cstdlib>
#include <cstdio>
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include <opencv2/core/core.hpp>

//函数声明
int encode(const char* str1);//参数1为二进制文件的绝对位置,如果出错返回-1，正常运行返回图片的张数
void Image_to_Video_Generate(int num,int frame_width,int frame_height,float frame_fps,float video_time);//解释在函数实现部分
int work(int argc, char** argv);
using namespace cv;
using namespace std;
//全局变量定义
const int Rows = 100, Cols = 100;//二进制文件中转为图片的像素的行列信息

int main(int argc, char** argv) {
	return work(argc, argv);
}
/* -----zhr----- */
int work(int argc, char** argv) {
	int retCode = 0;
	//cout << "Binary file name: " << argv[1] << endl;
	//cout << "Encoding.." << endl;
	retCode = encode("HH");
	Image_to_Video_Generate(1, 30.0, 5);
	//cout << "Output video file name: " << argv[2] << endl;
	//cout << "Length of video: " << argv[3] << "ms" << endl; //注意argv[3]是char格式的，如果要当作数值应用atoi(argv[3])函数转换
	return retCode;
}
//END zhr.
/* -----ldr----- */
int encode(const char* str1) {
	FILE* filePoint = NULL;
	fopen_s(&filePoint, "in.bin", "rb");
	if (filePoint == NULL) {
		cout << "Failed to open file!" << endl;
		return -1;
	}
	int num=1;//图片的张数
	char name[20];
	//fread(&num, sizeof(int), 1, filePoint);//二进制文件先给出有多少张图片
	Mat image(Rows, Cols, CV_8UC3, Scalar::all(0));
	for (int i = 1; i <= num; i++) {
		sprintf_s(name, "%s%d%s", "image", i, ".jpg");//输出图片的格式
		char* pData = (char*)image.data;
		for (int j = 0; j < Rows * Cols; j++)
			for (int k = 0; k < 3; k++)
				fread(&pData[j * 3 + k], sizeof(char), 1, filePoint);
		imwrite(name, image);
	}
	fclose(filePoint);
	return num;
}
//End ldr
/* -----y g----- */
/*图像生成视频*/
void Image_to_Video_Generate(int num,int frame_width,int frame_height,float frame_fps,float video_time)
{
//frame_height——图片高度
//frame_width——图片宽度
//frame_fps——图片帧率,初步定为10.0
//num——图片帧数
//video_time——视频播放时间，秒
//图像预先存储命名为：imageXX.jpg(eg:image1,image2...)
	char image_name[20];
	string s_image_name;
	VideoWriter writer;
	int isColor = 1;//非0为彩色
	string video_name = "output.avi";
	float time = 0;//记录播放时间
	writer = VideoWriter(video_name,writer.fourcc('X', 'V', 'I', 'D'), frame_fps, Size(frame_width, frame_height), isColor);
	cout << "frame_width is " << frame_width << endl;
	cout << "frame_height is " << frame_height << endl;
	cout << "frame_fps is " << frame_fps << endl;
	int i = 0;
	Mat img;
	int Video_Num = (int)(frame_fps* video_time);
	if (Video_Num > num)
	{
		cout << "视频长度不足,按原长度播放" << endl;
		Video_Num = num;
	}
	while (i <= Video_Num)
	{
		sprintf_s(image_name, "%s%d%s", "image", ++i, ".jpg");//将所存图片名字写入
		s_image_name = image_name;
		img = imread(s_image_name);//读入图片
		if (!img.data)//判断图片调入是否成功
		{
			cout << "Could not load image file...\n" << endl;
		}
		writer.write(img);
		if (waitKey(30) == 27 || i == num)//27 ESC键ascll码
		{
			cout << "按下ESC键" << endl;
			break;
		}
		
	}
	cout << "视频已生成" << endl;
}
//end yg