title: Image to video conversion with ffmpeg
body: <p>I'm trying to make a video showing one image per second using ffmpeg with node-fluent-ffmpeg. I'm using this code as shown on the examples, but I can only get a 1 second video. How can I modify the parameters to get 1 images per seconds and get a video with length that allow to show all images? </p>
  
  <pre><code>    var proc = ffmpeg('/images/%09d.jpg'))
      .fps(1)
      .on('end', function() {
           console.log('file has been converted succesfully');
      })
        .on('error', function(err) {
          console.log('an error happened: ' + err.message);
      })
      .save(path.resolve('/output/video.m4v'));
  </code></pre>