title: mp4Parser: How to create a video file with background audio from an mp3 file
body: <p>I am trying create an android app which merges a video and audio file using mp4Parser. I succeeded when I merge two mp4 file into a single file that displays the video of the first one and plays the audio of the second file.</p>
  
  <p>But I couldn't use an mp3 file as the audio source.</p>
  
  <p>The below code returns exception when I try to create Movie object with an mp3 file. The same code works fine with m4a and mp4 files.</p>
  
  <pre><code>Movie audio;
      try {
          String audioFileName    =   Environment.getExternalStorageDirectory().toString()+"/music.mp3";
          audio = new MovieCreator().build(audioFileName);
      } catch (IOException e) {
          e.printStackTrace();
          return false;
      } catch (NullPointerException e) {
          e.printStackTrace();
          return false;
      }
  </code></pre>
  
  <p>Is it possible to create Movie object from an mp3 file ?</p>
  
  <p>Anyone please help me on this</p>