OpenCV视频播放方法

OpenCV视频播放方法

今天折腾了一下OpenCV的视频播放功能，希望能对项目又帮助～

代码还是非常easy的，仅仅是之前遇到点小麻烦，找不到cvCreateFileCapture函数的定义，花了一两个小时



Makefile：

SOURCE_FILE :=  play_video.c

OBJECT_FILE :=  play_video.o

CFLAGS = -Wall -Wconversion -O3 `pkg-config --cflags opencv`

LIBS = `pkg-config --libs --cflags opencv`

complie:
gcc $(CFLAGS) -c $(SOURCE_FILE) $(LIBS)
link:
gcc $(CFLAGS) $(OBJECT_FILE) -o ./a.out $(LIBS)

clean:
rm -rf ./*.o ./a.out

/**************************************************************************
code writer : EOF
code date : 2014.10.22
code file : videos.c
e-mail  : jasonleaster@gmail.com jasonleaster@163.com

code decription:
This is the demo for how to play a vedio by OpenCV.

If you find something wrong with my code, please touch me by e-mail.Thank you.

****************************************************************************/
#include <stdio.h>
//#include "opencv2/highgui/highgui_c.h"
//#include "opencv2/imgproc/imgproc_c.h"
#include "highgui.h"
int main(int argc,char* argv[])
{
CvCapture* capture = cvCreateFileCapture ("./B.avi");

char* win_name = "Hello World";

if(!capture)
{
printf("No capture");
return 1;
}

cvNamedWindow(win_name,CV_WINDOW_AUTOSIZE);

IplImage* frame;

float ratio = 0;
char  temp  = 0;
while(1)
{
frame = cvQueryFrame(capture);
if(!frame)
{
break;
}

cvShowImage(win_name,frame);

temp = cvWaitKey(33);
if(temp == 27)
{
break;
}
}

cvReleaseCapture(&capture);
cvDestroyWindow(win_name);

return 0;
}

总体的框架就这样。能够玩视频~\(≧▽≦)/~啦啦啦