title: FFPMEG: stream local video to UDP address, make client aware about video length and current frame time offset (make stream seekable?)
body: <p>Just started to use FFMPEG. This is a really great library which is capable of video life transcoding and streaming.</p>
  
  <p>I use following commands to transcode and stream local video file to UDP address:
  ffmpeg  -y -re -i inputvideo.mpeg2  -vsync 1 -vcodec mpeg4 -b 1600k -r 15 -crf 20 -acodec aac -ar 44100 -strict -2 -f mpegts udp://192.168.1.30:1234 </p>
  
  <p>It works smooth. I can open this udp address in VLC player and play life stream.</p>
  
  <p>Does anybody know how to make client aware about video duration and current time stamp? </p>
  
  <p>Ideally would be nice to make stream seekable, as far as I understand it is not possible, but at least I would like to tell VLC client the total duration of the video and current frame time stamp, so it could show the progress.</p>
  
  <p>Thanks.</p>