blog/data/2015-02-25-frikanalen-uninett.txt

   1 Title: The Norwegian open channel Frikanalen - 24x7 on the Internet
   2 Tags: english, video, nuug, frikanalen, h264
   3 Date: 2015-02-25 09:10
   4
   5 <p>The Norwegian nationwide open channel
   6 <a href="http://www.frikanalen.no/">Frikanalen</a> is still going
   7 strong.  It allow everyone to send the video they want on national
   8 television.  It is a TV station administrated completely using a web
   9 browser, running only <ahref="https://github.com/Frikanalen">Free
  10 Software</a>, providing <ahref="http://beta.frikanalen.tv/api">a REST
  11 api</a> for administrators and members, and with distribution on the
  12 national DVB-T distribution network RiksTV.  But only between 12:00
  13 and 17:30 Norwegian time.  This has finally changed, after many years
  14 with limited distribution.  A few weeks ago, we set up a Ogg Theora
  15 stream via icecast to allow everyone with Internet access to check out
  16 the channel the rest of the day.  This is presented on
  17 <a href="http://www.frikanalen.tv/se">the Frikanalen web site now</a>.  And
  18 since a few days ago, the channel is also available
  19 via <a href="https://www.uninett.no/iptv-tilgang">multicast on
  20 UNINETT</a>, available for those using IPTV TVs and set-top boxes in
  21 the Norwegian National Research and Education network.</p>
  22
  23 <p>If you want to see what is on the channel, point your media player
  24 to one of these sources.  The first should work with most players and
  25 browsers, while as far as I know, the multicast UDP stream only work
  26 with VLC.</p>
  27
  28 <ul>
  29   <li><a href="http://video.nuug.no/frikanalen.ogv">http://video.nuug.no/frikanalen.ogv</a></li>
  30   <li>udp://@224.17.43.129:1234</li>
  31 </ul>
  32
  33 <p>The Ogg Theora / icecast stream is not working well, as the video
  34 and audio is slightly out of sync.  We have not been able to figure
  35 out how to fix it.  It is generated by recoding a internal MPEG
  36 transport stream with MPEG4 coded video (ie H.264) to Ogg Theora /
  37 Vorbis, and the result is less then stellar.  If you have ideas how to
  38 fix it, please let us know on frikanalen (at) nuug.no.  We currently
  39 use this with ffmpeg2theora 0.29:</p>
  40
  41 <blockquote><pre>
  42 ./ffmpeg2theora.linux &lt;OBE_gemini_URL.ts&gt; -F 25 -x 720 -y 405 \
  43  --deinterlace --inputfps 25 -c 1 -H 48000 --keyint 8 --buf-delay 100 \
  44  --nosync -V 700 -o - | oggfwd video.nuug.no 8000 &lt;pw&gt; /frikanalen.ogv
  45 </pre></blockquote>
  46
  47 <p>If you get the multicast UDP stream working, please let me know, as
  48 I am curious how far the multicast stream reach.  It do not make it to
  49 my home network, nor any other commercially available network in
  50 Norway that I am aware of.</p>