title: open source mp4 muxer in java
body: <p>Is there any Open Source MP4 muxer/writer java project(source written in java, no native code) available?</p>
  
  <p>I have H.264 &amp; AAC raw/elementary streams stored seperate files. I want to mux them and get the .mp4 video file containing both Audio &amp; Video.</p>
  
  <p>Thanks in advance for your valuable suggestions.</p>