title: Compile init.mp4 and audio.mp4 that has segment timeline
body: <p>I am trying to complie init.mp4 and its audio file 
  using copy /b init.mp4 + audio.mp4  complie.mp4 </p>
  
  <p>It is compiling but, its not able to play on vlc and on ffmpeg play.</p>
  
  <p>When I checked the mpd file, I see for audio  it has </p>
  
  <p></p>
  
  <pre><code>            &lt;SegmentTemplate timescale="48000" media="57_audio_1_17_$Number$.mp4?m=1532401844" initialization="57_audio_1_17_init.mp4?m=1532401844" startNumber="6815976"&gt;
                  &lt;SegmentTimeline&gt;
                      &lt;S t="1521333224447" d="479232" r="1"/&gt;
                      &lt;S t="1521334182911" d="483328"/&gt;
                      &lt;S t="1521334666239" d="479232" r="3"/&gt;
                      &lt;S t="1521336583167" d="483328"/&gt;
                      &lt;S t="1521337066495" d="479232" r="3"/&gt;
                      &lt;S t="1521338983423" d="483328"/&gt;
                      &lt;S t="1521339466751" d="479232" r="4"/&gt;
                      &lt;S t="1521341862911" d="483328"/&gt;
                      &lt;S t="1521342346239" d="479232" r="3"/&gt;
                      &lt;S t="1521344263167" d="483328"/&gt;
                      &lt;S t="1521344746495" d="479232" r="3"/&gt;
                      &lt;S t="1521346663423" d="483328"/&gt;
                      &lt;S t="1521347146751" d="479232" r="4"/&gt;
                      &lt;S t="1521349542911" d="483328"/&gt;
                      &lt;S t="1521350026239" d="479232" r="3"/&gt;
                      &lt;S t="1521351943167" d="483328"/&gt;
                      &lt;S t="1521352426495" d="479232" r="3"/&gt;
                      &lt;S t="1521354343423" d="483328"/&gt;
                      &lt;S t="1521354826751" d="479232" r="4"/&gt;
                      &lt;S t="1521357222911" d="483328"/&gt;
                      &lt;S t="1521357706239" d="479232" r="3"/&gt;
                      &lt;S t="1521359623167" d="483328"/&gt;
                      &lt;S t="1521360106495" d="479232" r="3"/&gt;
                      &lt;S t="1521362023423" d="483328"/&gt;
                      &lt;S t="1521362506751" d="479232" r="4"/&gt;
                      &lt;S t="1521364902911" d="483328"/&gt;
                      &lt;S t="1521365386239" d="479232" r="3"/&gt;
                      &lt;S t="1521367303167" d="483328"/&gt;
                      &lt;S t="1521367786495" d="479232" r="3"/&gt;
                      &lt;S t="1521369703423" d="483328"/&gt;
                      &lt;S t="1521370186751" d="479232" r="4"/&gt;
                      &lt;S t="1521372582911" d="483328"/&gt;
                      &lt;S t="1521373066239" d="479232" r="3"/&gt;
                      &lt;S t="1521374983167" d="483328"/&gt;
                      &lt;S t="1521375466495" d="479232" r="3"/&gt;
                      &lt;S t="1521377383423" d="483328"/&gt;
                  &lt;/SegmentTimeline&gt;
              &lt;/SegmentTemplate&gt;
          &lt;/Representation&gt;
  </code></pre>
  
  <p>Can somebody explain  what it is ? And those t,r,d values are.
  How do I add these audio segments to complie.mp4  and make it play ?</p>