blog/archive/2018/02/02.rss

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   3         <channel>
   4                 <title>Petter Reinholdtsen - Entries from February 2018</title>
   5                 <description>Entries from February 2018</description>
   6                 <link>http://people.skolelinux.org/pere/blog/</link>
   7
   8
   9         <item>
  10                 <title>Using VLC to stream bittorrent sources</title>
  11                 <link>http://people.skolelinux.org/pere/blog/Using_VLC_to_stream_bittorrent_sources.html</link>
  12                 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Using_VLC_to_stream_bittorrent_sources.html</guid>
  13                 <pubDate>Wed, 14 Feb 2018 08:00:00 +0100</pubDate>
  14                 <description>&lt;p&gt;A few days ago, a new major version of
  15 &lt;a href=&quot;https://www.videolan.org/&quot;&gt;VLC&lt;/a&gt; was announced, and I
  16 decided to check out if it now supported streaming over
  17 &lt;a href=&quot;http://bittorrent.org/&quot;&gt;bittorrent&lt;/a&gt; and
  18 &lt;a href=&quot;https://webtorrent.io&quot;&gt;webtorrent&lt;/a&gt;.  Bittorrent is one of
  19 the most efficient ways to distribute large files on the Internet, and
  20 Webtorrent is a variant of Bittorrent using
  21 &lt;a href=&quot;https://webrtc.org&quot;&gt;WebRTC&lt;/a&gt; as its transport channel,
  22 allowing web pages to stream and share files using the same technique.
  23 The network protocols are similar but not identical, so a client
  24 supporting one of them can not talk to a client supporting the other.
  25 I was a bit surprised with what I discovered when I started to look.
  26 Looking at
  27 &lt;a href=&quot;https://www.videolan.org/vlc/releases/3.0.0.html&quot;&gt;the release
  28 notes&lt;/a&gt; did not help answering this question, so I started searching
  29 the web.  I found several news articles from 2013, most of them
  30 tracing the news from Torrentfreak
  31 (&quot;&lt;a href=https://torrentfreak.com/open-source-giant-vlc-mulls-bittorrent-support-130211/&quot;&gt;Open
  32 Source Giant VLC Mulls BitTorrent Streaming Support&lt;/a&gt;&quot;), about a
  33 initiative to pay someone to create a VLC patch for bittorrent
  34 support.  To figure out what happend with this initiative, I headed
  35 over to the #videolan IRC channel and asked if there were some bug or
  36 feature request tickets tracking such feature.  I got an answer from
  37 lead developer Jean-Babtiste Kempf, telling me that there was a patch
  38 but neither he nor anyone else knew where it was.  So I searched a bit
  39 more, and came across an independent
  40 &lt;a href=&quot;https://github.com/johang/vlc-bittorrent&quot;&gt;VLC plugin to add
  41 bittorrent support&lt;/a&gt;, created by Johan Gunnarsson in 2016/2017.
  42 Again according to Jean-Babtiste, this is not the patch he was talking
  43 about.&lt;/p&gt;
  44
  45 &lt;p&gt;Anyway, to test the plugin, I made a working Debian package from
  46 the git repository, with some modifications.  After installing this
  47 package, I could stream videos from
  48 &lt;a href=&quot;https://www.archive.org/&quot;&gt;The Internet Archive&lt;/a&gt; using VLC
  49 commands like this:&lt;/p&gt;
  50
  51 &lt;p&gt;&lt;blockquote&gt;&lt;pre&gt;
  52 vlc https://archive.org/download/LoveNest/LoveNest_archive.torrent
  53 &lt;/pre&gt;&lt;/blockquote&gt;&lt;/p&gt;
  54
  55 &lt;p&gt;The plugin is supposed to handle magnet links too, but since The
  56 Internet Archive do not have magnet links and I did not want to spend
  57 time tracking down another source, I have not tested it.  It can take
  58 quite a while before the video start playing without any indication of
  59 what is going on from VLC.  It took 10-20 seconds when I measured it.
  60 Some times the plugin seem unable to find the correct video file to
  61 play, and show the metadata XML file name in the VLC status line.  I
  62 have no idea why.&lt;/p&gt;
  63
  64 &lt;p&gt;I have created a &lt;a href=&quot;https://bugs.debian.org/890360&quot;&gt;request for
  65 a new package in Debian (RFP)&lt;/a&gt; and
  66 &lt;a href=&quot;https://github.com/johang/vlc-bittorrent/issues/1&quot;&gt;asked if
  67 the upstream author is willing to help make this happen&lt;/a&gt;.  Now we
  68 wait to see what come out of this.  I do not want to maintain a
  69 package that is not maintained upstream, nor do I really have time to
  70 maintain more packages myself, so I might leave it at this.  But I
  71 really hope someone step up to do the packaging, and hope upstream is
  72 still maintaining the source.  If you want to help, please update the
  73 RFP request or the upstream issue.&lt;/p&gt;
  74
  75 &lt;p&gt;I have not found any traces of webtorrent support for VLC.&lt;/p&gt;
  76
  77 &lt;p&gt;As usual, if you use Bitcoin and want to show your support of my
  78 activities, please send Bitcoin donations to my address
  79 &lt;b&gt;&lt;a href=&quot;bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&quot;&gt;15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&lt;/a&gt;&lt;/b&gt;.&lt;/p&gt;
  80 </description>
  81         </item>
  82
  83         <item>
  84                 <title>Version 3.1 of Cura, the 3D print slicer, is now in Debian</title>
  85                 <link>http://people.skolelinux.org/pere/blog/Version_3_1_of_Cura__the_3D_print_slicer__is_now_in_Debian.html</link>
  86                 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Version_3_1_of_Cura__the_3D_print_slicer__is_now_in_Debian.html</guid>
  87                 <pubDate>Tue, 13 Feb 2018 06:20:00 +0100</pubDate>
  88                 <description>&lt;p&gt;A new version of the
  89 &lt;a href=&quot;https://tracker.debian.org/pkg/cura&quot;&gt;3D printer slicer
  90 software Cura&lt;/a&gt;, version 3.1.0, is now available in Debian Testing
  91 (aka Buster) and Debian Unstable (aka Sid).  I hope you find it
  92 useful.  It was uploaded the last few days, and the last update will
  93 enter testing tomorrow.  See the
  94 &lt;a href=&quot;https://ultimaker.com/en/products/cura-software/release-notes&quot;&gt;release
  95 notes&lt;/a&gt; for the list of bug fixes and new features.  Version 3.2
  96 was announced 6 days ago.  We will try to get it into Debian as
  97 well.&lt;/p&gt;
  98
  99 &lt;p&gt;More information related to 3D printing is available on the
 100 &lt;a href=&quot;https://wiki.debian.org/3DPrinting&quot;&gt;3D printing&lt;/a&gt; and
 101 &lt;a href=&quot;https://wiki.debian.org/3D-printer&quot;&gt;3D printer&lt;/a&gt; wiki pages
 102 in Debian.&lt;/p&gt;
 103
 104 &lt;p&gt;As usual, if you use Bitcoin and want to show your support of my
 105 activities, please send Bitcoin donations to my address
 106 &lt;b&gt;&lt;a href=&quot;bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&quot;&gt;15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&lt;/a&gt;&lt;/b&gt;.&lt;/p&gt;
 107 </description>
 108         </item>
 109
 110         <item>
 111                 <title>Overvåkning i Kina vs. Norge</title>
 112                 <link>http://people.skolelinux.org/pere/blog/Overv_kning_i_Kina_vs__Norge.html</link>
 113                 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Overv_kning_i_Kina_vs__Norge.html</guid>
 114                 <pubDate>Mon, 12 Feb 2018 09:40:00 +0100</pubDate>
 115                 <description>&lt;p&gt;Jeg lar meg fascinere av en artikkel
 116 &lt;a href=&quot;https://www.dagbladet.no/kultur/terroristene-star-pa-dora/69436116&quot;&gt;i
 117 Dagbladet om Kinas håndtering av Xinjiang&lt;/a&gt;, spesielt følgende
 118 utsnitt:&lt;/p&gt;
 119
 120 &lt;p&gt;&lt;blockquote&gt;
 121
 122 &lt;p&gt;«I den sørvestlige byen Kashgar nærmere grensa til
 123 Sentral-Asia meldes det nå at 120.000 uigurer er internert i såkalte
 124 omskoleringsleirer. Samtidig er det innført et omfattende
 125 helsesjekk-program med innsamling og lagring av DNA-prøver fra
 126 absolutt alle innbyggerne. De mest avanserte overvåkingsmetodene
 127 testes ut her. Programmer for å gjenkjenne ansikter og stemmer er på
 128 plass i regionen. Der har de lokale myndighetene begynt å installere
 129 GPS-systemer i alle kjøretøy og egne sporingsapper i
 130 mobiltelefoner.&lt;/p&gt;
 131
 132 &lt;p&gt;Politimetodene griper så dypt inn i folks dagligliv at motstanden
 133 mot Beijing-regimet øker.»&lt;/p&gt;
 134
 135 &lt;/blockquote&gt;&lt;/p&gt;
 136
 137 &lt;p&gt;Beskrivelsen avviker jo desverre ikke så veldig mye fra tilstanden
 138 her i Norge.&lt;/p&gt;
 139
 140 &lt;table&gt;
 141 &lt;tr&gt;
 142 &lt;th&gt;Dataregistrering&lt;/th&gt;
 143 &lt;th&gt;Kina&lt;/th&gt;
 144 &lt;th&gt;Norge&lt;/th&gt;
 145
 146 &lt;tr&gt;
 147 &lt;td&gt;Innsamling og lagring av DNA-prøver fra befolkningen&lt;/td&gt;
 148 &lt;td&gt;Ja&lt;/td&gt;
 149 &lt;td&gt;Delvis, planlagt for alle nyfødte.&lt;/td&gt;
 150 &lt;/tr&gt;
 151
 152 &lt;tr&gt;
 153 &lt;td&gt;Ansiktsgjenkjenning&lt;/td&gt;
 154 &lt;td&gt;Ja&lt;/td&gt;
 155 &lt;td&gt;Ja&lt;/td&gt;
 156 &lt;/tr&gt;
 157
 158 &lt;tr&gt;
 159 &lt;td&gt;Stemmegjenkjenning&lt;/td&gt;
 160 &lt;td&gt;Ja&lt;/td&gt;
 161 &lt;td&gt;Nei&lt;/td&gt;
 162 &lt;/tr&gt;
 163
 164 &lt;tr&gt;
 165 &lt;td&gt;Posisjons-sporing av mobiltelefoner&lt;/td&gt;
 166 &lt;td&gt;Ja&lt;/td&gt;
 167 &lt;td&gt;Ja&lt;/td&gt;
 168 &lt;/tr&gt;
 169
 170 &lt;tr&gt;
 171 &lt;td&gt;Posisjons-sporing av biler&lt;/td&gt;
 172 &lt;td&gt;Ja&lt;/td&gt;
 173 &lt;td&gt;Ja&lt;/td&gt;
 174 &lt;/tr&gt;
 175
 176 &lt;/table&gt;
 177
 178 &lt;p&gt;I Norge har jo situasjonen rundt Folkehelseinstituttets lagring av
 179 DNA-informasjon på vegne av politiet, der de nektet å slette
 180 informasjon politiet ikke hadde lov til å ta vare på, gjort det klart
 181 at DNA tar vare på ganske lenge.  I tillegg finnes det utallige
 182 biobanker som lagres til evig tid, og det er planer om å innføre
 183 &lt;a href=&quot;https://www.aftenposten.no/norge/i/75E9/4-av-10-mener-staten-bor-lagre-DNA-profiler-pa-alle-nyfodte&quot;&gt;evig
 184 lagring av DNA-materiale fra alle spebarn som fødes&lt;/a&gt; (med mulighet
 185 for å be om sletting).&lt;/p&gt;
 186
 187 &lt;p&gt;I Norge er det system på plass for ansiktsgjenkjenning, som
 188 &lt;a href=&quot;https://www.nrk.no/norge/kun-gardermoen-har-teknologi-for-ansiktsgjenkjenning-i-norge-1.12719461&quot;&gt;en
 189 NRK-artikkel fra 2015&lt;/a&gt; forteller er aktiv på Gardermoen, samt
 190 &lt;a href=&quot;https://www.dagbladet.no/nyheter/inntil-27-000-bor-i-norge-under-falsk-id/60500781&quot;&gt;brukes
 191 til å analysere bilder innsamlet av myndighetene&lt;/a&gt;.  Brukes det også
 192 flere plasser?  Det er tett med overvåkningskamera kontrollert av
 193 politi og andre myndigheter i for eksempel Oslo sentrum.&lt;/p&gt;
 194
 195 &lt;p&gt;Jeg er ikke kjent med at Norge har noe system for identifisering av
 196 personer ved hjelp av stemmegjenkjenning.&lt;/p&gt;
 197
 198 &lt;p&gt;Posisjons-sporing av mobiltelefoner er ruinemessig tilgjengelig for
 199 blant annet politi, NAV og Finanstilsynet, i tråd med krav i
 200 telefonselskapenes konsesjon.  I tillegg rapporterer smarttelefoner
 201 sin posisjon til utviklerne av utallige mobil-apper, der myndigheter
 202 og andre kan hente ut informasjon ved behov.  Det er intet behov for
 203 noen egen app for dette.&lt;/p&gt;
 204
 205 &lt;p&gt;Posisjons-sporing av biler er rutinemessig tilgjengelig via et tett
 206 nett av målepunkter på veiene (automatiske bomstasjoner,
 207 køfribrikke-registrering, automatiske fartsmålere og andre veikamera).
 208 Det er i tillegg vedtatt at alle nye biler skal selges med utstyr for
 209 GPS-sporing (eCall).&lt;/p&gt;
 210
 211 &lt;p&gt;Det er jammen godt vi lever i et liberalt demokrati, og ikke en
 212 overvåkningsstat, eller?&lt;/p&gt;
 213
 214 &lt;p&gt;Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til
 215 det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner
 216 til min adresse
 217 &lt;b&gt;&lt;a href=&quot;bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&quot;&gt;15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&lt;/a&gt;&lt;/b&gt;.&lt;/p&gt;
 218 </description>
 219         </item>
 220
 221         <item>
 222                 <title>How hard can æ, ø and å be?</title>
 223                 <link>http://people.skolelinux.org/pere/blog/How_hard_can______and___be_.html</link>
 224                 <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/How_hard_can______and___be_.html</guid>
 225                 <pubDate>Sun, 11 Feb 2018 17:10:00 +0100</pubDate>
 226                 <description>&lt;img src=&quot;http://people.skolelinux.org/pere/blog/images/2018-02-11-peppes-unicode.jpeg&quot; align=&quot;right&quot;/&gt;
 227
 228 &lt;p&gt;We write 2018, and it is 30 years since Unicode was introduced.
 229 Most of us in Norway have come to expect the use of our alphabet to
 230 just work with any computer system.  But it is apparently beyond reach
 231 of the computers printing recites at a restaurant.  Recently I visited
 232 a Peppes pizza resturant, and noticed a few details on the recite.
 233 Notice how &#39;ø&#39; and &#39;å&#39; are replaced with strange symbols in
 234 &#39;Servitør&#39;, &#39;Å BETALE&#39;, &#39;Beløp pr. gjest&#39;, &#39;Takk for besøket.&#39; and &#39;Vi
 235 gleder oss til å se deg igjen&#39;.&lt;/p&gt;
 236
 237 &lt;p&gt;I would say that this state is passed sad and over in embarrassing.&lt;/p&gt;
 238
 239 &lt;p&gt;I removed personal and private information to be nice.&lt;/p&gt;
 240
 241 &lt;p&gt;As usual, if you use Bitcoin and want to show your support of my
 242 activities, please send Bitcoin donations to my address
 243 &lt;b&gt;&lt;a href=&quot;bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&quot;&gt;15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&lt;/a&gt;&lt;/b&gt;.&lt;/p&gt;
 244 </description>
 245         </item>
 246
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 248 </rss>