title: FFMPEG in Java (runtime error)
body: <p>I want to write a program that converts video into frames using FFMPEG. When I use it on the Ubuntu terminal, it works fine. But when I try to put it into the Java code, it gives me a runtime error. Did I make a mistake in my code below?</p>
  
  <pre><code>import java.util.*;
  import java.awt.*;
  import java.lang.*;
  import java.lang.Runtime;
  import java.io.*;
  import java.io.IOException;
  
  public class ConvertVideoToImage
  {
      private SingletonServer ss = null;
  
      public ConvertVideoToImage(SingletonServer ss)
      {
          this.ss = ss;
      }
  
      public void run()
      {
          convertVideo();
      }
  
      public void convertVideo()
      {
          try
          {
              Runtime rt = Runtime.getRunTime().exec("ffmpeg" + "-i" +         "display.wmv" + "image%d.jpg");
          }
          catch(Exception e){}
      }
  
  }
  </code></pre>
  
  <p><b>Edit:</b></p>
  
  <p>I have changed the code like you suggested, but it also doesn't work. And when I Googled it, I found out that someone put the full path inside the executable and it became like this:</p>
  
  <pre><code>Runtime.getRuntime().exec("/home/pc3/Documents/ffmpeg_temp/ffmpeg -i display.wmv image%d.jpg")
  </code></pre>
  
  <p>BTW, thanks for the reply. I have another question. Is it possible to make a counter for FFMPEG? I used this command in the Ubuntu terminal to make it convert a video to 30 frames/1seconds:</p>
  
  <pre><code>ffmpeg -i display.wmv image%d.jpg
  </code></pre>
  
  <p>This will automatically generate numbers like image1.jpg, image2.jpg, to image901.jpg. Is it possible to make a counter for this? Because I need to count the files and control the number.</p>
  
  <p>Thanks in advance.</p>