Execute the command line arguments in java Program

[swethak]

Hi,

i have a command to convert the video file into image

ffmpeg -i sample.wmv -f image2 -t 0.001 -ss 3 ss.jpg

i run that one in command prompt it converted the video file into image.


But i executed that command in jsp Program .It didn't work.It shows error.

 
<% 
Runtime rt = Runtime.getRuntime();
 Process p = rt.exec("ffmpeg  -i  sample.wmv  -f image2 -t 0.001 -ss 3 ss.jpg");
 %>
 
 

error messages:

org.apache.jasper.JasperException: Exception in JSP: /upload4.jsp:29
 
26: 
27: <% 
28: Runtime rt = Runtime.getRuntime();
29:  Process p = rt.exec("ffmpeg  -i  sample.wmv  -f image2 -t 0.001 -ss 3 ss.jpg");
30:  %>
 

Stacktrace:
    org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:504)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:381)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
 
root cause
 
java.io.IOException: CreateProcess: ffmpeg -i sample.wmv -f image2 -t 0.001 -ss 3 ss.jpg error=2
    java.lang.ProcessImpl.create(Native Method)
    java.lang.ProcessImpl.<init>(Unknown Source)
    java.lang.ProcessImpl.start(Unknown Source)
    java.lang.ProcessBuilder.start(Unknown Source)
    java.lang.Runtime.exec(Unknown Source)
    java.lang.Runtime.exec(Unknown Source)
    java.lang.Runtime.exec(Unknown Source)
    org.apache.jsp.upload4_jsp._jspService(upload4_jsp.java:97)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
 
 

please tell the solution whats the Problem in my code.

[JosAH]

Look at the root cause: the process couldn't be created; most likely that ffmpeg command is not in the PATH of your web application; either supply the full path of the command or adjust your PATH variable.

kind regards,

Jos

[swethak]

Hi,

Thank you to Reply. I give the full path .But it shows the same error.Please tell that Problem.

 
File workDir = new File("C:/Program Files/Apache Software Foundation/Tomcat 5.5/webapps/test/");
Process p = Runtime.getRuntime().exec("ffmpeg  -i  sample.wmv  -f image2 -t 0.001 -ss 3 ss.jpg",null,"workDir");
 
 

[JosAH]

@swethak
No, you're still passing 'ffmpeg' as the command (in the String). Pass the absolute path in your String where your ffmpeg command is stored.

kind regards,

Jos

[swethak]

hi,

i gave the full path of ffmpeg as

<%
Process p = Runtime.getRuntime().exec("C:/Program Files/Apache Software Foundation/Tomcat 5.5/webapps/test/ffmpeg  -i  sample.wmv  -f image2 -t 0.001 -ss 3 sssssss.jpg");
%>
 

Those errors are resolved and also that command didn't work(That means video file didn't convert into an image.) .please help that what is the Problem in that

[r035198x]

What happened when you ran it this time? Where (in which folder) are you expecting the image to be saved to?

[swethak]

Hi,

When i run the code a blank page will appear.Nothing will happen.And i want to give the video file from my working directory.And also i want the image in my working directory

Main thing is i run the command in command prompt

"ffmpeg -i sample.wmv -f image2 -t 0.001 -ss 3 ss.jpg"

It works fine and sample.wmv video converted into ss.jpg in my working directory.

I want to execute the same command in jsp program .Please tell that solution

[r035198x]

The JSP is blank because you haven't output anything with it. Better do all this in a servlet and output the relevant messages to the JSP. That way you can tell if the conversion was successful or not. You probably also need to give an absolute path for the file output to a directory you can easily check.