title: Specify timestamp in ffmpeg video segment command
body: <p>I have a continuous RTSP stream coming from a camera over the network.
  I want to dump the stream but in video files of length 1 min each.</p>
  
  <p>I an using the following command</p>
  
  <pre><code>ffmpeg -i "rtsp://user:pass@example.com"  -f mp4 -r 12 -s 640x480 -ar 44100 \
  -ac 1 -segment_time 60 -segment_format mp4 "out%03d.mp4"
  </code></pre>
  
  <p>The name of the files being created are of the form <code>out001.mp4</code>, <code>out002.mp4</code>, etc.</p>
  
  <p>I want to include the timestamp (hour and minute) in the name of the file segments eg. <code>09-30.mp4</code>, <code>09-31.mp4</code>, etc.</p>
  
  <p>If it is mandatory to provide a serial number for the segment, is it possible to get something like <code>09-30-001.mp4</code>, <code>09-31-002</code>.mp4 ?</p>