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  13   <h1>
  14        <a href="../../../">Petter Reinholdtsen</a>
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  19
  20  <p>Entries from April 2009.</p>
  21
  22
  23 <div class="entry">
  24  <div class="title">
  25  <a href="../../../Recording_video_from_cron_using_VLC.html">Recording video from cron using VLC</a>
  26  </div>
  27  <div class="date">
  28   2009-04-05 10:00
  29  </div>
  30
  31  <div class="body">
  32
  33 <p>One think I have wanted to figure out for a along time is how to
  34 run vlc from cron to do recording of video streams on the net.  The
  35 task is trivial with mplayer, but I do not really trust the security
  36 of mplayer (it crashes too often on strange input), and thus prefer
  37 vlc.  I finally found a way to do it today.  I spent an hour or so
  38 searching the web for recipes and reading the documentation.  The
  39 hardest part was to get rid of the GUI window, but after finding the
  40 dummy interface, the command line finally presented itself:</p>
  41
  42 <blockquote><pre>URL=http://www.ping.uio.no/video/rms-oslo_2009.ogg
  43 SAVEFILE=rms.ogg
  44 DISPLAY= vlc -q $URL \
  45   --sout="#duplicate{dst=std{access=file,url='$SAVEFILE'},dst=nodisplay}" \
  46   --intf=dummy</pre></blockquote>
  47
  48 <p>The command stream the URL and store it in the SAVEFILE by
  49 duplicating the output stream to "nodisplay" and the file, using the
  50 dummy interface.  The dummy interface and the nodisplay output make
  51 sure no X interface is needed.</p>
  52
  53 <p>The cron job then need to start this job with the appropriate URL
  54 and file name to save, sleep for the duration wanted, and then kill
  55 the vlc process with SIGTERM.  Here is a complete script
  56 <tt>vlc-record</tt> to use from <tt>at</tt> or <tt>cron</tt>:</p>
  57
  58 <blockquote><pre>#!/bin/sh
  59 set -e
  60 URL="$1"
  61 SAVEFILE="$2"
  62 DURATION="$3"
  63 DISPLAY= vlc -q "$URL" \
  64   --sout="#duplicate{dst=std{access=file,url='$SAVEFILE'},dst=nodisplay}" \
  65   --intf=dummy < /dev/null > /dev/null 2>&1 &
  66 pid=$!
  67 sleep $DURATION
  68 kill $pid
  69 wait $pid</pre></blockquote>
  70
  71  </div>
  72  <div class="tags">
  73
  74
  75
  76   Tags: <a href="../../../tags/english">english</a>, <a href="../../../tags/nuug">nuug</a>, <a href="../../../tags/video">video</a>.
  77
  78  </div>
  79 </div>
  80  <div class="padding"></div>
  81
  82 <div class="entry">
  83  <div class="title">
  84  <a href="../../../Fransk_idiotlovforslag_hinker_gjennom_parlamentet.html">Fransk idiotlovforslag hinker gjennom parlamentet</a>
  85  </div>
  86  <div class="date">
  87   2009-04-10 00:10
  88  </div>
  89
  90  <div class="body">
  91
  92 <p><a href="http://www.dagbladet.no/2009/04/09/kultur/musikk/fildeling/tekno/5689356/">Dagbladet
  93 melder at det franske idiotforslaget om å kutte Internet-forbindelsen
  94 til alle som blir anklaget for å ha brutt opphavsretten 3 ganger</a>
  95 ble nedstemt i dag med 21 mot 15 stemmer.  Vinklingen i Dagbladet er
  96 litt merkelig når en vet at det samme forslaget ble vedtatt i
  97 parlamentets andre kammer med 12 mot 4 stemmer, etter at det
  98 <a href="http://opendotdotdot.blogspot.com/2009/04/hadopi-law-passed-by-12-votes-to-4.html">overraskende
  99 ble foreslått å ta saken opp til votering 22:45 sist torsdag</a>,
 100 etter sigende i strid med vanlige rutiner i det franske parlamentet.</p>
 101
 102 <p>Det hele blir ennå mer komisk når et vet at
 103 <a href="http://www.zeropaid.com/news/10034/political_hypocrisy_french_president_sued_for_copyright_infringement/">presidentens
 104 parti er blitt anklaget for å ha brutt opphavsretten</a>.  Mon tro om
 105 partet skal miste internet-forbindelsen hvis de får 2 anklager til
 106 rettet mot seg.</p>
 107
 108  </div>
 109  <div class="tags">
 110
 111
 112
 113   Tags: <a href="../../../tags/norsk">norsk</a>, <a href="../../../tags/nuug">nuug</a>, <a href="../../../tags/personvern">personvern</a>.
 114
 115  </div>
 116 </div>
 117  <div class="padding"></div>
 118
 119  <p style="text-align: right;"><a href="04.rss"><img src="../../../xml.gif" alt="RSS Feed" width="36" height="14"></a></p>
 120
 121
 122
 123 <div id="sidebar">
 124
 125 <h2>Archive</h2>
 126 <ul>
 127
 128 <li>2009
 129 <ul>
 130
 131 <li><a href="../../../archive/2009/01/">January (8)</a></li>
 132
 133 <li><a href="../../../archive/2009/02/">February (8)</a></li>
 134
 135 <li><a href="../../../archive/2009/03/">March (12)</a></li>
 136
 137 <li><a href="../../../archive/2009/04/">April (2)</a></li>
 138
 139 </ul></li>
 140
 141 <li>2008
 142 <ul>
 143
 144 <li><a href="../../../archive/2008/11/">November (5)</a></li>
 145
 146 <li><a href="../../../archive/2008/12/">December (7)</a></li>
 147
 148 </ul></li>
 149
 150 </ul>
 151
 152
 153
 154 <h2>Tags</h2>
 155 <ul>
 156
 157  <li><a href="../../../tags/3d-printer">3d-printer (9)</a></li>
 158
 159  <li><a href="../../../tags/amiga">amiga (1)</a></li>
 160
 161  <li><a href="../../../tags/aros">aros (1)</a></li>
 162
 163  <li><a href="../../../tags/debian">debian (6)</a></li>
 164
 165  <li><a href="../../../tags/debian edu">debian edu (6)</a></li>
 166
 167  <li><a href="../../../tags/english">english (10)</a></li>
 168
 169  <li><a href="../../../tags/fiksgatami">fiksgatami (1)</a></li>
 170
 171  <li><a href="../../../tags/ltsp">ltsp (1)</a></li>
 172
 173  <li><a href="../../../tags/multimedia">multimedia (2)</a></li>
 174
 175  <li><a href="../../../tags/norsk">norsk (32)</a></li>
 176
 177  <li><a href="../../../tags/nuug">nuug (32)</a></li>
 178
 179  <li><a href="../../../tags/personvern">personvern (4)</a></li>
 180
 181  <li><a href="../../../tags/reprap">reprap (9)</a></li>
 182
 183  <li><a href="../../../tags/rss">rss (1)</a></li>
 184
 185  <li><a href="../../../tags/standard">standard (2)</a></li>
 186
 187  <li><a href="../../../tags/stavekontroll">stavekontroll (1)</a></li>
 188
 189  <li><a href="../../../tags/video">video (6)</a></li>
 190
 191  <li><a href="../../../tags/vitenskap">vitenskap (1)</a></li>
 192
 193  <li><a href="../../../tags/web">web (2)</a></li>
 194
 195 </ul>
 196
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