UNIX for Dummies Questions & Answers

//just in case you needed to know what libraries I included
#include<iostream>
#include<opencv/cv.h>
#include<opencv/highgui.h>
#include<dirent.h>
#include<string>
#include<cstdlib>
#include<cstdio>
#define SPACE_BAR 32
#define ENTER_KEY 10

using namespace std;
int main(int argc,char *argv[]){
        char title[]="ImageClipper";
        char title2[]="Cropped Image";
        if(argc!=2 && (cout<<"Usage: ./imageclipper <avi-path>"<<endl))exit(0);

        char *avifile=argv[1];
        cout<<"avi file is "<<avifile<<endl;

        CvCapture *capture=NULL;
 CvCapture *capture=NULL;
        capture=cvCreateFileCapture(avifile);
        if(capture==NULL){
          cout<<"capture is Null..exiting"<<endl;
          exit(1);
        }

// code to open some windows providing an interface to select sub regions of a frame...but the above lines should be sufficient
...
}

./a.out path/to/video.avi

find path_to_folder_containing_avis -name "*.avi" > to_process.txt

for f in `cat to_process.txt`
do
./a.out $f
done

while read f
do
  ## echo $f
  ./a.out $f
done < to_process.txt