+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/VLC_in_Debian_now_can_do_bittorrent_streaming.html">VLC in Debian now can do bittorrent streaming</a>
+ </div>
+ <div class="date">
+ 24th September 2018
+ </div>
+ <div class="body">
+ <p>Back in February, I got curious to see
+<a href="http://people.skolelinux.org/pere/blog/Using_VLC_to_stream_bittorrent_sources.html">if
+VLC now supported Bittorrent streaming</a>. It did not, despite the
+fact that the idea and code to handle such streaming had been floating
+around for years. I did however find
+<a href="https://github.com/johang/vlc-bittorrent">a standalone plugin
+for VLC</a> to do it, and half a year later I decided to wrap up the
+plugin and get it into Debian. I uploaded it to NEW a few days ago,
+and am very happy to report that it
+<a href="https://tracker.debian.org/pkg/vlc-plugin-bittorrent">entered
+Debian</a> a few hours ago, and should be available in Debian/Unstable
+tomorrow, and Debian/Testing in a few days.</p>
+
+<p>With the vlc-plugin-bittorrent package installed you should be able
+to stream videos using a simple call to</p>
+
+<p><blockquote><pre>
+vlc https://archive.org/download/TheGoat/TheGoat_archive.torrent
+</pre></blockquote></p>
+
+</p>It can handle magnet links too. Now if only native vlc had
+bittorrent support. Then a lot more would be helping each other to
+share public domain and creative commons movies. The plugin need some
+stability work with seeking and picking the right file in a torrent
+with many files, but is already usable. Please note that the plugin
+is not removing downloaded files when vlc is stopped, so it can fill
+up your disk if you are not careful. Have fun. :)</p>
+
+<p>I would love to get help maintaining this package. Get in touch if
+you are interested.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Using_the_Kodi_API_to_play_Youtube_videos.html">Using the Kodi API to play Youtube videos</a>
+ </div>
+ <div class="date">
+ 2nd September 2018
+ </div>
+ <div class="body">
+ <p>I continue to explore my Kodi installation, and today I wanted to
+tell it to play a youtube URL I received in a chat, without having to
+insert search terms using the on-screen keyboard. After searching the
+web for API access to the Youtube plugin and testing a bit, I managed
+to find a recipe that worked. If you got a kodi instance with its API
+available from http://kodihost/jsonrpc, you can try the following to
+have check out a nice cover band.</p>
+
+<p><blockquote><pre>curl --silent --header 'Content-Type: application/json' \
+ --data-binary '{ "id": 1, "jsonrpc": "2.0", "method": "Player.Open",
+ "params": {"item": { "file":
+ "plugin://plugin.video.youtube/play/?video_id=LuRGVM9O0qg" } } }' \
+ http://projector.local/jsonrpc</pre></blockquote></p>
+
+<p>I've extended kodi-stream program to take a video source as its
+first argument. It can now handle direct video links, youtube links
+and 'desktop' to stream my desktop to Kodi. It is almost like a
+Chromecast. :)</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/kodi">kodi</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Software_created_using_taxpayers__money_should_be_Free_Software.html">Software created using taxpayers’ money should be Free Software</a>
+ </div>
+ <div class="date">
+ 30th August 2018
+ </div>
+ <div class="body">
+ <p>It might seem obvious that software created using tax money should
+be available for everyone to use and improve. Free Software
+Foundation Europe recentlystarted a campaign to help get more people
+to understand this, and I just signed the petition on
+<a href="https://publiccode.eu/">Public Money, Public Code</a> to help
+them. I hope you too will do the same.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/A_bit_more_on_privacy_respecting_health_monitor___fitness_tracker.html">A bit more on privacy respecting health monitor / fitness tracker</a>
+ </div>
+ <div class="date">
+ 13th August 2018
+ </div>
+ <div class="body">
+ <p>A few days ago, I wondered if there are any privacy respecting
+health monitors and/or fitness trackers available for sale these days.
+I would like to buy one, but do not want to share my personal data
+with strangers, nor be forced to have a mobile phone to get data out
+of the unit. I've received some ideas, and would like to share them
+with you.
+
+One interesting data point was a pointer to a Free Software app for
+Android named
+<a href="https://github.com/Freeyourgadget/Gadgetbridge/">Gadgetbridge</a>.
+It provide cloudless collection and storing of data from a variety of
+trackers. Its
+<a href="https://github.com/Freeyourgadget/Gadgetbridge/#supported-devices">list
+of supported devices</a> is a good indicator for units where the
+protocol is fairly open, as it is obviously being handled by Free
+Software. Other units are reportedly encrypting the collected
+information with their own public key, making sure only the vendor
+cloud service is able to extract data from the unit. The people
+contacting me about Gadgetbirde said they were using
+<a href="https://us.amazfit.com/shop/bip?variant=336750">Amazfit
+Bip</a> and
+<a href="http://www.xiaomimi6phone.com/xiaomi-mi-band-3-features-release-date-rumors/">Xiaomi
+Band 3</a>.</p>
+
+<p>I also got a suggestion to look at some of the units from Garmin.
+I was told their GPS watches can be connected via USB and show up as a
+USB storage device with
+<a href="https://www.gpsbabel.org/htmldoc-development/fmt_garmin_fit.html">Garmin
+FIT files</a> containing the collected measurements. While
+proprietary, FIT files apparently can be read at least by
+<a href="https://www.gpsbabel.org">GPSBabel</a> and the
+<a href="https://apps.nextcloud.com/apps/gpxpod">GpxPod</a> Nextcloud
+app. It is unclear to me if they can read step count and heart rate
+data. The person I talked to was using a
+<a href="https://buy.garmin.com/en-US/US/p/564291">Garmin Forerunner
+935</a>, which is a fairly expensive unit. I doubt it is worth it for
+a unit where the vendor clearly is trying its best to move from open
+to closed systems. I still remember when Garmin dropped NMEA support
+in its GPSes.</p>
+
+<p>A final idea was to build ones own unit, perhaps by basing it on a
+wearable hardware platforms like
+<a href="https://learn.adafruit.com/flora-geo-watch">the Flora Geo
+Watch</a>. Sound like fun, but I had more money than time to spend on
+the topic, so I suspect it will have to wait for another time.</p>
+
+<p>While I was working on tracking down links, I came across an
+inspiring TED talk by Dave Debronkart about
+<a href="https://archive.org/details/DavedeBronkart_2010X">being a
+e-patient</a>, and discovered the web site
+<a href="https://participatorymedicine.org/epatients/">Participatory
+Medicine</a>. If you too want to track your own health and fitness
+without having information about your private life floating around on
+computers owned by others, I recommend checking it out.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Privacy_respecting_health_monitor___fitness_tracker_.html">Privacy respecting health monitor / fitness tracker?</a>
+ </div>
+ <div class="date">
+ 7th August 2018
+ </div>
+ <div class="body">
+ <p>Dear lazyweb,</p>
+
+<p>I wonder, is there a fitness tracker / health monitor available for
+sale today that respect the users privacy? With this I mean a
+watch/bracelet capable of measuring pulse rate and other
+fitness/health related values (and by all means, also the correct time
+and location if possible), which is <strong>only</strong> provided for
+me to extract/read from the unit with computer without a radio beacon
+and Internet connection. In other words, it do not depend on a cell
+phone app, and do make the measurements available via other peoples
+computer (aka "the cloud"). The collected data should be available
+using only free software. I'm not interested in depending on some
+non-free software that will leave me high and dry some time in the
+future. I've been unable to find any such unit. I would like to buy
+it. The ones I have seen for sale here in Norway are proud to report
+that they share my health data with strangers (aka "cloud enabled").
+Is there an alternative? I'm not interested in giving money to people
+requiring me to accept "privacy terms" to allow myself to measure my
+own health.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Sharing_images_with_friends_and_family_using_RSS_and_EXIF_XMP_metadata.html">Sharing images with friends and family using RSS and EXIF/XMP metadata</a>
+ </div>
+ <div class="date">
+ 31st July 2018
+ </div>
+ <div class="body">
+ <p>For a while now, I have looked for a sensible way to share images
+with my family using a self hosted solution, as it is unacceptable to
+place images from my personal life under the control of strangers
+working for data hoarders like Google or Dropbox. The last few days I
+have drafted an approach that might work out, and I would like to
+share it with you. I would like to publish images on a server under
+my control, and point some Internet connected display units using some
+free and open standard to the images I published. As my primary
+language is not limited to ASCII, I need to store metadata using
+UTF-8. Many years ago, I hoped to find a digital photo frame capable
+of reading a RSS feed with image references (aka using the
+<enclosure> RSS tag), but was unable to find a current supplier
+of such frames. In the end I gave up that approach.</p>
+
+<p>Some months ago, I discovered that
+<a href="https://www.jwz.org/xscreensaver/">XScreensaver</a> is able to
+read images from a RSS feed, and used it to set up a screen saver on
+my home info screen, showing images from the Daily images feed from
+NASA. This proved to work well. More recently I discovered that
+<a href="https://kodi.tv">Kodi</a> (both using
+<a href="https://www.openelec.tv/">OpenELEC</a> and
+<a href="https://libreelec.tv">LibreELEC</a>) provide the
+<a href="https://github.com/grinsted/script.screensaver.feedreader">Feedreader</a>
+screen saver capable of reading a RSS feed with images and news. For
+fun, I used it this summer to test Kodi on my parents TV by hooking up
+a Raspberry PI unit with LibreELEC, and wanted to provide them with a
+screen saver showing selected pictures from my selection.</p>
+
+<p>Armed with motivation and a test photo frame, I set out to generate
+a RSS feed for the Kodi instance. I adjusted my <a
+href="https://freedombox.org/">Freedombox</a> instance, created
+/var/www/html/privatepictures/, wrote a small Perl script to extract
+title and description metadata from the photo files and generate the
+RSS file. I ended up using Perl instead of python, as the
+libimage-exiftool-perl Debian package seemed to handle the EXIF/XMP
+tags I ended up using, while python3-exif did not. The relevant EXIF
+tags only support ASCII, so I had to find better alternatives. XMP
+seem to have the support I need.</p>
+
+<p>I am a bit unsure which EXIF/XMP tags to use, as I would like to
+use tags that can be easily added/updated using normal free software
+photo managing software. I ended up using the tags set using this
+exiftool command, as these tags can also be set using digiKam:</p>
+
+<blockquote><pre>
+exiftool -headline='The RSS image title' \
+ -description='The RSS image description.' \
+ -subject+=for-family photo.jpeg
+</pre></blockquote>
+
+<p>I initially tried the "-title" and "keyword" tags, but they were
+invisible in digiKam, so I changed to "-headline" and "-subject". I
+use the keyword/subject 'for-family' to flag that the photo should be
+shared with my family. Images with this keyword set are located and
+copied into my Freedombox for the RSS generating script to find.</p>
+
+<p>Are there better ways to do this? Get in touch if you have better
+suggestions.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Simple_streaming_the_Linux_desktop_to_Kodi_using_GStreamer_and_RTP.html">Simple streaming the Linux desktop to Kodi using GStreamer and RTP</a>
+ </div>
+ <div class="date">
+ 12th July 2018
+ </div>
+ <div class="body">
+ <p>Last night, I wrote
+<a href="http://people.skolelinux.org/pere/blog/Streaming_the_Linux_desktop_to_Kodi_using_VLC_and_RTSP.html">a
+recipe to stream a Linux desktop using VLC to a instance of Kodi</a>.
+During the day I received valuable feedback, and thanks to the
+suggestions I have been able to rewrite the recipe into a much simpler
+approach requiring no setup at all. It is a single script that take
+care of it all.</p>
+
+<p>This new script uses GStreamer instead of VLC to capture the
+desktop and stream it to Kodi. This fixed the video quality issue I
+saw initially. It further removes the need to add a m3u file on the
+Kodi machine, as it instead connects to
+<a href="https://kodi.wiki/view/JSON-RPC_API/v8">the JSON-RPC API in
+Kodi</a> and simply ask Kodi to play from the stream created using
+GStreamer. Streaming the desktop to Kodi now become trivial. Copy
+the script below, run it with the DNS name or IP address of the kodi
+server to stream to as the only argument, and watch your screen show
+up on the Kodi screen. Note, it depend on multicast on the local
+network, so if you need to stream outside the local network, the
+script must be modified. Also note, I have no idea if audio work, as
+I only care about the picture part.</p>
+
+<blockquote><pre>
+#!/bin/sh
+#
+# Stream the Linux desktop view to Kodi. See
+# http://people.skolelinux.org/pere/blog/Streaming_the_Linux_desktop_to_Kodi_using_VLC_and_RTSP.html
+# for backgorund information.
+
+# Make sure the stream is stopped in Kodi and the gstreamer process is
+# killed if something go wrong (for example if curl is unable to find the
+# kodi server). Do the same when interrupting this script.
+kodicmd() {
+ host="$1"
+ cmd="$2"
+ params="$3"
+ curl --silent --header 'Content-Type: application/json' \
+ --data-binary "{ \"id\": 1, \"jsonrpc\": \"2.0\", \"method\": \"$cmd\", \"params\": $params }" \
+ "http://$host/jsonrpc"
+}
+cleanup() {
+ if [ -n "$kodihost" ] ; then
+ # Stop the playing when we end
+ playerid=$(kodicmd "$kodihost" Player.GetActivePlayers "{}" |
+ jq .result[].playerid)
+ kodicmd "$kodihost" Player.Stop "{ \"playerid\" : $playerid }" > /dev/null
+ fi
+ if [ "$gstpid" ] && kill -0 "$gstpid" >/dev/null 2>&1; then
+ kill "$gstpid"
+ fi
+}
+trap cleanup EXIT INT
+
+if [ -n "$1" ]; then
+ kodihost=$1
+ shift
+else
+ kodihost=kodi.local
+fi
+
+mcast=239.255.0.1
+mcastport=1234
+mcastttl=1
+
+pasrc=$(pactl list | grep -A2 'Source #' | grep 'Name: .*\.monitor$' | \
+ cut -d" " -f2|head -1)
+gst-launch-1.0 ximagesrc use-damage=0 ! video/x-raw,framerate=30/1 ! \
+ videoconvert ! queue2 ! \
+ x264enc bitrate=8000 speed-preset=superfast tune=zerolatency qp-min=30 \
+ key-int-max=15 bframes=2 ! video/x-h264,profile=high ! queue2 ! \
+ mpegtsmux alignment=7 name=mux ! rndbuffersize max=1316 min=1316 ! \
+ udpsink host=$mcast port=$mcastport ttl-mc=$mcastttl auto-multicast=1 sync=0 \
+ pulsesrc device=$pasrc ! audioconvert ! queue2 ! avenc_aac ! queue2 ! mux. \
+ > /dev/null 2>&1 &
+gstpid=$!
+
+# Give stream a second to get going
+sleep 1
+
+# Ask kodi to start streaming using its JSON-RPC API
+kodicmd "$kodihost" Player.Open \
+ "{\"item\": { \"file\": \"udp://@$mcast:$mcastport\" } }" > /dev/null
+
+# wait for gst to end
+wait "$gstpid"
+</pre></blockquote>
+
+<p>I hope you find the approach useful. I know I do.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/kodi">kodi</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Streaming_the_Linux_desktop_to_Kodi_using_VLC_and_RTSP.html">Streaming the Linux desktop to Kodi using VLC and RTSP</a>
+ </div>
+ <div class="date">
+ 12th July 2018
+ </div>
+ <div class="body">
+ <p>PS: See
+<ahref="http://people.skolelinux.org/pere/blog/Simple_streaming_the_Linux_desktop_to_Kodi_using_GStreamer_and_RTP.html">the
+followup post</a> for a even better approach.</p>
+
+<p>A while back, I was asked by a friend how to stream the desktop to
+my projector connected to Kodi. I sadly had to admit that I had no
+idea, as it was a task I never had tried. Since then, I have been
+looking for a way to do so, preferable without much extra software to
+install on either side. Today I found a way that seem to kind of
+work. Not great, but it is a start.</p>
+
+<p>I had a look at several approaches, for example
+<a href="https://github.com/mfoetsch/dlna_live_streaming">using uPnP
+DLNA as described in 2011</a>, but it required a uPnP server, fuse and
+local storage enough to store the stream locally. This is not going
+to work well for me, lacking enough free space, and it would
+impossible for my friend to get working.</p>
+
+<p>Next, it occurred to me that perhaps I could use VLC to create a
+video stream that Kodi could play. Preferably using
+broadcast/multicast, to avoid having to change any setup on the Kodi
+side when starting such stream. Unfortunately, the only recipe I
+could find using multicast used the rtp protocol, and this protocol
+seem to not be supported by Kodi.</p>
+
+<p>On the other hand, the rtsp protocol is working! Unfortunately I
+have to specify the IP address of the streaming machine in both the
+sending command and the file on the Kodi server. But it is showing my
+desktop, and thus allow us to have a shared look on the big screen at
+the programs I work on.</p>
+
+<p>I did not spend much time investigating codeces. I combined the
+rtp and rtsp recipes from
+<a href="https://wiki.videolan.org/Documentation:Streaming_HowTo/Command_Line_Examples/">the
+VLC Streaming HowTo/Command Line Examples</a>, and was able to get
+this working on the desktop/streaming end.</p>
+
+<blockquote><pre>
+vlc screen:// --sout \
+ '#transcode{vcodec=mp4v,acodec=mpga,vb=800,ab=128}:rtp{dst=projector.local,port=1234,sdp=rtsp://192.168.11.4:8080/test.sdp}'
+</pre></blockquote>
+
+<p>I ssh-ed into my Kodi box and created a file like this with the
+same IP address:</p>
+
+<blockquote><pre>
+echo rtsp://192.168.11.4:8080/test.sdp \
+ > /storage/videos/screenstream.m3u
+</pre></blockquote>
+
+<p>Note the 192.168.11.4 IP address is my desktops IP address. As far
+as I can tell the IP must be hardcoded for this to work. In other
+words, if someone elses machine is going to do the steaming, you have
+to update screenstream.m3u on the Kodi machine and adjust the vlc
+recipe. To get started, locate the file in Kodi and select the m3u
+file while the VLC stream is running. The desktop then show up in my
+big screen. :)</p>
+
+<p>When using the same technique to stream a video file with audio,
+the audio quality is really bad. No idea if the problem is package
+loss or bad parameters for the transcode. I do not know VLC nor Kodi
+enough to tell.</p>
+
+<p><strong>Update 2018-07-12</strong>: Johannes Schauer send me a few
+succestions and reminded me about an important step. The "screen:"
+input source is only available once the vlc-plugin-access-extra
+package is installed on Debian. Without it, you will see this error
+message: "VLC is unable to open the MRL 'screen://'. Check the log
+for details." He further found that it is possible to drop some parts
+of the VLC command line to reduce the amount of hardcoded information.
+It is also useful to consider using cvlc to avoid having the VLC
+window in the desktop view. In sum, this give us this command line on
+the source end
+
+<blockquote><pre>
+cvlc screen:// --sout \
+ '#transcode{vcodec=mp4v,acodec=mpga,vb=800,ab=128}:rtp{sdp=rtsp://:8080/}'
+</pre></blockquote>
+
+<p>and this on the Kodi end<p>
+
+<blockquote><pre>
+echo rtsp://192.168.11.4:8080/ \
+ > /storage/videos/screenstream.m3u
+</pre></blockquote>
+
+<p>Still bad image quality, though. But I did discover that streaming
+a DVD using dvdsimple:///dev/dvd as the source had excellent video and
+audio quality, so I guess the issue is in the input or transcoding
+parts, not the rtsp part. I've tried to change the vb and ab
+parameters to use more bandwidth, but it did not make a
+difference.</p>
+
+<p>I further received a suggestion from Einar Haraldseid to try using
+gstreamer instead of VLC, and this proved to work great! He also
+provided me with the trick to get Kodi to use a multicast stream as
+its source. By using this monstrous oneliner, I can stream my desktop
+with good video quality in reasonable framerate to the 239.255.0.1
+multicast address on port 1234:
+
+<blockquote><pre>
+gst-launch-1.0 ximagesrc use-damage=0 ! video/x-raw,framerate=30/1 ! \
+ videoconvert ! queue2 ! \
+ x264enc bitrate=8000 speed-preset=superfast tune=zerolatency qp-min=30 \
+ key-int-max=15 bframes=2 ! video/x-h264,profile=high ! queue2 ! \
+ mpegtsmux alignment=7 name=mux ! rndbuffersize max=1316 min=1316 ! \
+ udpsink host=239.255.0.1 port=1234 ttl-mc=1 auto-multicast=1 sync=0 \
+ pulsesrc device=$(pactl list | grep -A2 'Source #' | \
+ grep 'Name: .*\.monitor$' | cut -d" " -f2|head -1) ! \
+ audioconvert ! queue2 ! avenc_aac ! queue2 ! mux.
+</pre></blockquote>
+
+<p>and this on the Kodi end<p>
+
+<blockquote><pre>
+echo udp://@239.255.0.1:1234 \
+ > /storage/videos/screenstream.m3u
+</pre></blockquote>
+
+<p>Note the trick to pick a valid pulseaudio source. It might not
+pick the one you need. This approach will of course lead to trouble
+if more than one source uses the same multicast port and address.
+Note the ttl-mc=1 setting, which limit the multicast packages to the
+local network. If the value is increased, your screen will be
+broadcasted further, one network "hop" for each increase (read up on
+multicast to learn more. :)!</p>
+
+<p>Having cracked how to get Kodi to receive multicast streams, I
+could use this VLC command to stream to the same multicast address.
+The image quality is way better than the rtsp approach, but gstreamer
+seem to be doing a better job.</p>
+
+<blockquote><pre>
+cvlc screen:// --sout '#transcode{vcodec=mp4v,acodec=mpga,vb=800,ab=128}:rtp{mux=ts,dst=239.255.0.1,port=1234,sdp=sap}'
+</pre></blockquote>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/kodi">kodi</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/What_is_the_most_supported_MIME_type_in_Debian_in_2018_.html">What is the most supported MIME type in Debian in 2018?</a>
+ </div>
+ <div class="date">
+ 9th July 2018
+ </div>
+ <div class="body">
+ <p>Five years ago,
+<a href="http://people.skolelinux.org/pere/blog/What_is_the_most_supported_MIME_type_in_Debian_.html">I
+measured what the most supported MIME type in Debian was</a>, by
+analysing the desktop files in all packages in the archive. Since
+then, the DEP-11 AppStream system has been put into production, making
+the task a lot easier. This made me want to repeat the measurement,
+to see how much things changed. Here are the new numbers, for
+unstable only this time:
+
+<p><strong>Debian Unstable:</strong></p>
+
+<pre>
+ count MIME type
+ ----- -----------------------
+ 56 image/jpeg
+ 55 image/png
+ 49 image/tiff
+ 48 image/gif
+ 39 image/bmp
+ 38 text/plain
+ 37 audio/mpeg
+ 34 application/ogg
+ 33 audio/x-flac
+ 32 audio/x-mp3
+ 30 audio/x-wav
+ 30 audio/x-vorbis+ogg
+ 29 image/x-portable-pixmap
+ 27 inode/directory
+ 27 image/x-portable-bitmap
+ 27 audio/x-mpeg
+ 26 application/x-ogg
+ 25 audio/x-mpegurl
+ 25 audio/ogg
+ 24 text/html
+</pre>
+
+<p>The list was created like this using a sid chroot: "cat
+/var/lib/apt/lists/*sid*_dep11_Components-amd64.yml.gz| zcat | awk '/^
+- \S+\/\S+$/ {print $2 }' | sort | uniq -c | sort -nr | head -20"</p>
+
+<p>It is interesting to see how image formats have passed text/plain
+as the most announced supported MIME type. These days, thanks to the
+AppStream system, if you run into a file format you do not know, and
+want to figure out which packages support the format, you can find the
+MIME type of the file using "file --mime <filename>", and then
+look up all packages announcing support for this format in their
+AppStream metadata (XML or .desktop file) using "appstreamcli
+what-provides mimetype <mime-type>. For example if you, like
+me, want to know which packages support inode/directory, you can get a
+list like this:</p>
+
+<p><blockquote><pre>
+% appstreamcli what-provides mimetype inode/directory | grep Package: | sort
+Package: anjuta
+Package: audacious
+Package: baobab
+Package: cervisia
+Package: chirp
+Package: dolphin
+Package: doublecmd-common
+Package: easytag
+Package: enlightenment
+Package: ephoto
+Package: filelight
+Package: gwenview
+Package: k4dirstat
+Package: kaffeine
+Package: kdesvn
+Package: kid3
+Package: kid3-qt
+Package: nautilus
+Package: nemo
+Package: pcmanfm
+Package: pcmanfm-qt
+Package: qweborf
+Package: ranger
+Package: sirikali
+Package: spacefm
+Package: spacefm
+Package: vifm
+%
+</pre></blockquote></p>
+
+<p>Using the same method, I can quickly discover that the Sketchup file
+format is not yet supported by any package in Debian:</p>
+
+<p><blockquote><pre>
+% appstreamcli what-provides mimetype application/vnd.sketchup.skp
+Could not find component providing 'mimetype::application/vnd.sketchup.skp'.
+%
+</pre></blockquote></p>
+
+<p>Yesterday I used it to figure out which packages support the STL 3D
+format:</p>
+
+<p><blockquote><pre>
+% appstreamcli what-provides mimetype application/sla|grep Package
+Package: cura
+Package: meshlab
+Package: printrun
+%
+</pre></blockquote></p>
+
+<p>PS: A new version of Cura was uploaded to Debian yesterday.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Debian_APT_upgrade_without_enough_free_space_on_the_disk___.html">Debian APT upgrade without enough free space on the disk...</a>
+ </div>
+ <div class="date">
+ 8th July 2018
+ </div>
+ <div class="body">
+ <p>Quite regularly, I let my Debian Sid/Unstable chroot stay untouch
+for a while, and when I need to update it there is not enough free
+space on the disk for apt to do a normal 'apt upgrade'. I normally
+would resolve the issue by doing 'apt install <somepackages>' to
+upgrade only some of the packages in one batch, until the amount of
+packages to download fall below the amount of free space available.
+Today, I had about 500 packages to upgrade, and after a while I got
+tired of trying to install chunks of packages manually. I concluded
+that I did not have the spare hours required to complete the task, and
+decided to see if I could automate it. I came up with this small
+script which I call 'apt-in-chunks':</p>
+
+<p><blockquote><pre>
+#!/bin/sh
+#
+# Upgrade packages when the disk is too full to upgrade every
+# upgradable package in one lump. Fetching packages to upgrade using
+# apt, and then installing using dpkg, to avoid changing the package
+# flag for manual/automatic.
+
+set -e
+
+ignore() {
+ if [ "$1" ]; then
+ grep -v "$1"
+ else
+ cat
+ fi
+}
+
+for p in $(apt list --upgradable | ignore "$@" |cut -d/ -f1 | grep -v '^Listing...'); do
+ echo "Upgrading $p"
+ apt clean
+ apt install --download-only -y $p
+ for f in /var/cache/apt/archives/*.deb; do
+ if [ -e "$f" ]; then
+ dpkg -i /var/cache/apt/archives/*.deb
+ break
+ fi
+ done
+done
+</pre></blockquote></p>
+
+<p>The script will extract the list of packages to upgrade, try to
+download the packages needed to upgrade one package, install the
+downloaded packages using dpkg. The idea is to upgrade packages
+without changing the APT mark for the package (ie the one recording of
+the package was manually requested or pulled in as a dependency). To
+use it, simply run it as root from the command line. If it fail, try
+'apt install -f' to clean up the mess and run the script again. This
+might happen if the new packages conflict with one of the old
+packages. dpkg is unable to remove, while apt can do this.</p>
+
+<p>It take one option, a package to ignore in the list of packages to
+upgrade. The option to ignore a package is there to be able to skip
+the packages that are simply too large to unpack. Today this was
+'ghc', but I have run into other large packages causing similar
+problems earlier (like TeX).</p>
+
+<p>Update 2018-07-08: Thanks to Paul Wise, I am aware of two
+alternative ways to handle this. The "unattended-upgrades
+--minimal-upgrade-steps" option will try to calculate upgrade sets for
+each package to upgrade, and then upgrade them in order, smallest set
+first. It might be a better option than my above mentioned script.
+Also, "aptutude upgrade" can upgrade single packages, thus avoiding
+the need for using "dpkg -i" in the script above.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/The_worlds_only_stone_power_plant_.html">The worlds only stone power plant?</a>
+ </div>
+ <div class="date">
+ 30th June 2018
+ </div>
+ <div class="body">
+ <p>So far, at least hydro-electric power, coal power, wind power,
+solar power, and wood power are well known. Until a few days ago, I
+had never heard of stone power. Then I learn about a quarry in a
+mountain in
+<a href="https://en.wikipedia.org/wiki/Bremanger">Bremanger</a> i
+Norway, where
+<a href="https://www.bontrup.com/en/activities/raw-materials/bremanger-quarry/">the
+Bremanger Quarry</a> company is extracting stone and dumping the stone
+into a shaft leading to its shipping harbour. This downward movement
+in this shaft is used to produce electricity. In short, it is using
+falling rocks instead of falling water to produce electricity, and
+according to its own statements it is producing more power than it is
+using, and selling the surplus electricity to the Norwegian power
+grid. I find the concept truly amazing. Is this the worlds only
+stone power plant?</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Add_on_to_control_the_projector_from_within_Kodi.html">Add-on to control the projector from within Kodi</a>
+ </div>
+ <div class="date">
+ 26th June 2018
+ </div>
+ <div class="body">
+ <p>My movie playing setup involve <a href="https://kodi.tv/">Kodi</a>,
+<a href="https://openelec.tv">OpenELEC</a> (probably soon to be
+replaced with <a href="https://libreelec.tv/">LibreELEC</a>) and an
+Infocus IN76 video projector. My projector can be controlled via both
+a infrared remote controller, and a RS-232 serial line. The vendor of
+my projector, <a href="https://www.infocus.com/">InFocus</a>, had been
+sensible enough to document the serial protocol in its user manual, so
+it is easily available, and I used it some years ago to write
+<a href="https://github.com/petterreinholdtsen/infocus-projector-control">a
+small script to control the projector</a>. For a while now, I longed
+for a setup where the projector was controlled by Kodi, for example in
+such a way that when the screen saver went on, the projector was
+turned off, and when the screen saver exited, the projector was turned
+on again.</p>
+
+<p>A few days ago, with very good help from parts of my family, I
+managed to find a Kodi Add-on for controlling a Epson projector, and
+got in touch with its author to see if we could join forces and make a
+Add-on with support for several projectors. To my pleasure, he was
+positive to the idea, and we set out to add InFocus support to his
+add-on, and make the add-on suitable for the official Kodi add-on
+repository.</p>
+
+<p>The Add-on is now working (for me, at least), with a few minor
+adjustments. The most important change I do relative to the master
+branch in the github repository is embedding the
+<a href="https://github.com/pyserial/pyserial">pyserial module</a> in
+the add-on. The long term solution is to make a "script" type
+pyserial module for Kodi, that can be pulled in as a dependency in
+Kodi. But until that in place, I embed it.</p>
+
+<p>The add-on can be configured to turn on the projector when Kodi
+starts, off when Kodi stops as well as turn the projector off when the
+screensaver start and on when the screesaver stops. It can also be
+told to set the projector source when turning on the projector.
+
+<p>If this sound interesting to you, check out
+<a href="https://github.com/fredrik-eriksson/kodi_projcontrol">the
+project github repository</a>. Perhaps you can send patches to
+support your projector too? As soon as we find time to wrap up the
+latest changes, it should be available for easy installation using any
+Kodi instance.</p>
+
+<p>For future improvements, I would like to add projector model
+detection and the ability to adjust the brightness level of the
+projector from within Kodi. We also need to figure out how to handle
+the cooling period of the projector. My projector refuses to turn on
+for 60 seconds after it was turned off. This is not handled well by
+the add-on at the moment.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Self_appointed_leaders_of_the_Free_World.html">Self-appointed leaders of the Free World</a>
+ </div>
+ <div class="date">
+ 22nd March 2018
+ </div>
+ <div class="body">
+ <p>The leaders of the worlds have started to congratulate the
+re-elected Russian head of state, and this causes some criticism. I
+am though a little fascinated by a comment from USA senator John McCain,
+<a href="http://thehill.com/homenews/senate/379339-mccain-rips-trumps-congratulatory-call-to-putin-as-insult-to-russian-people">sited
+by The Hill and others</a>:
+
+<p><blockquote>
+<p>"An American president does not lead the Free World by
+congratulating dictators on winning sham elections."</p>
+</blockquote></p>
+
+<p>While I totally agree with the senator here, the way the quote is
+phrased make me suspect that he is unaware of the simple fact that USA
+have not lead the Free World since at least before its government
+<a href="https://en.wikipedia.org/wiki/Maher_Arar">kidnapped a
+completely innocent Canadian citizen in transit on his way home to
+Canada via John F. Kennedy International Airport in September 2002 and
+sent him to be tortured in Syria for a year</a>.</p>
+
+<p>USA might be running ahead, but the path they are taking is not the
+one taken by any Free World.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Facebooks_ability_to_sell_your_personal_information_is_the_real_Cambridge_Analytica_scandal.html">Facebooks ability to sell your personal information is the real Cambridge Analytica scandal</a>
+ </div>
+ <div class="date">
+ 21st March 2018
+ </div>
+ <div class="body">
+ <p>So, Cambridge Analytica is getting some well deserved criticism for
+(mis)using information it got from Facebook about 50 million people,
+mostly in the USA. What I find a bit surprising, is how little
+criticism Facebook is getting for handing the information over to
+Cambridge Analytica and others in the first place. And what about the
+people handing their private and personal information to Facebook?
+And last, but not least, what about the government offices who are
+handing information about the visitors of their web pages to Facebook?
+No-one who looked at the terms of use of Facebook should be surprised
+that information about peoples interests, political views, personal
+lifes and whereabouts would be sold by Facebook.</p>
+
+<p>What I find to be the real scandal is the fact that Facebook is
+selling your personal information, not that one of the buyers used it
+in a way Facebook did not approve when exposed. It is well known that
+Facebook is selling out their users privacy, but a scandal
+nevertheless. Of course the information provided to them by Facebook
+would be misused by one of the parties given access to personal
+information about the millions of Facebook users. Collected
+information will be misused sooner or later. The only way to avoid
+such misuse, is to not collect the information in the first place. If
+you do not want Facebook to hand out information about yourself for
+the use and misuse of its customers, do not give Facebook the
+information.</p>
+
+<p>Personally, I would recommend to completely remove your Facebook
+account, and take back some control of your personal information.
+<a href="https://www.theguardian.com/technology/2018/mar/19/how-to-protect-your-facebook-privacy-or-delete-yourself-completely">According
+to The Guardian</a>, it is a bit hard to find out how to request
+account removal (and not just 'disabling'). You need to
+<a href="https://www.facebook.com/help/224562897555674?helpref=faq_content">visit
+a specific Facebook page</a> and click on 'let us know' on that page
+to get to <a href="https://www.facebook.com/help/delete_account">the
+real account deletion screen</a>. Perhaps something to consider? I
+would not trust the information to really be deleted (who knows,
+perhaps NSA, GCHQ and FRA already got a copy), but it might reduce the
+exposure a bit.</p>
+
+<p>If you want to learn more about the capabilities of Cambridge
+Analytica, I recommend to see the video recording of the one hour talk
+Paul-Olivier Dehaye gave to <a href="">NUUG</a> last april about
+<a href="https://www.nuug.no/aktiviteter/20170404-big-data-psychometric/">
+Data collection, psychometric profiling and their impact on
+politics</a>.</p>
+
+<p>And if you want to communicate with your friends and loved ones,
+use some end-to-end encrypted method like
+<a href="https://www.signal.org/">Signal</a> or
+<a href="https://ring.cx/">Ring</a>, and stop sharing your private
+messages with strangers like Facebook and Google.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/First_rough_draft_Norwegian_and_Spanish_edition_of_the_book_Made_with_Creative_Commons.html">First rough draft Norwegian and Spanish edition of the book Made with Creative Commons</a>
+ </div>
+ <div class="date">
+ 13th March 2018
+ </div>
+ <div class="body">
+ <p>I am working on publishing yet another book related to Creative
+Commons. This time it is a book filled with interviews and histories
+from those around the globe making a living using Creative
+Commons.</p>
+
+<p>Yesterday, after many months of hard work by several volunteer
+translators, the first draft of a Norwegian Bokmål edition of the book
+<a href="https://madewith.cc">Made with Creative Commons from 2017</a>
+was complete. The Spanish translation is also complete, while the
+Dutch, Polish, German and Ukraine edition need a lot of work. Get in
+touch if you want to help make those happen, or would like to
+translate into your mother tongue.</p>
+
+<p>The whole book project started when
+<a href="http://gwolf.org/node/4102">Gunnar Wolf announced</a> that he
+was going to make a Spanish edition of the book. I noticed, and
+offered some input on how to make a book, based on my experience with
+translating the
+<a href="https://www.lulu.com/shop/lawrence-lessig/fri-kultur/paperback/product-22441576.html">Free
+Culture</a> and
+<a href="https://debian-handbook.info/get/#norwegian">The Debian
+Administrator's Handbook</a> books to Norwegian Bokmål. To make a
+long story short, we ended up working on a Bokmål edition, and now the
+first rough translation is complete, thanks to the hard work of
+Ole-Erik Yrvin, Ingrid Yrvin, Allan Nordhøy and myself. The first
+proof reading is almost done, and only the second and third proof
+reading remains. We will also need to translate the 14 figures and
+create a book cover. Once it is done we will publish the book on
+paper, as well as in PDF, ePub and possibly Mobi formats.</p>
+
+<p>The book itself originates as a manuscript on Google Docs, is
+downloaded as ODT from there and converted to Markdown using pandoc.
+The Markdown is modified by a script before is converted to DocBook
+using pandoc. The DocBook is modified again using a script before it
+is used to create a Gettext POT file for translators. The translated
+PO file is then combined with the earlier mentioned DocBook file to
+create a translated DocBook file, which finally is given to dblatex to
+create the final PDF. The end result is a set of editions of the
+manuscript, one English and one for each of the translations.</p>
+
+<p>The translation is conducted using
+<a href="https://hosted.weblate.org/projects/madewithcc/translation/">the
+Weblate web based translation system</a>. Please have a look there
+and get in touch if you would like to help out with proof
+reading. :)</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Debian_used_in_the_subway_info_screens_in_Oslo__Norway.html">Debian used in the subway info screens in Oslo, Norway</a>
+ </div>
+ <div class="date">
+ 2nd March 2018
+ </div>
+ <div class="body">
+ <p>Today I was pleasantly surprised to discover my operating system of
+choice, Debian, was used in the info screens on the subway stations.
+While passing Nydalen subway station in Oslo, Norway, I discovered the
+info screen booting with some text scrolling. I was not quick enough
+with my camera to be able to record a video of the scrolling boot
+screen, but I did get a photo from when the boot got stuck with a
+corrupt file system:
+
+<p align="center"><a href="http://people.skolelinux.org/pere/blog/images/2018-03-02-ruter-debian-lenny.jpeg"><img align="center" width="40%" src="http://people.skolelinux.org/pere/blog/images/2018-03-02-ruter-debian-lenny.jpeg" alt="[photo of subway info screen]"></a></p>
+
+<p>While I am happy to see Debian used more places, some details of the
+content on the screen worries me.</p>
+
+<p>The image show the version booting is 'Debian GNU/Linux lenny/sid',
+indicating that this is based on code taken from Debian Unstable/Sid
+after Debian Etch (version 4) was released 2007-04-08 and before
+Debian Lenny (version 5) was released 2009-02-14. Since Lenny Debian
+has released version 6 (Squeeze) 2011-02-06, 7 (Wheezy) 2013-05-04, 8
+(Jessie) 2015-04-25 and 9 (Stretch) 2017-06-15, according to
+<a href="https://en.wikipedia.org/wiki/Debian_version_history">a Debian
+version history on Wikpedia</a>. This mean the system is running
+around 10 year old code, with no security fixes from the vendor for
+many years.</p>
+
+<p>This is not the first time I discover the Oslo subway company,
+Ruter, running outdated software. In 2012,
+<a href="http://people.skolelinux.org/pere/blog/Er_billettautomatene_til_kollektivtrafikken_i_Oslo_uten_sikkerhetsoppdateringer_.html">I
+discovered the ticket vending machines were running Windows 2000</a>,
+and this was
+<a href="http://people.skolelinux.org/pere/blog/Fortsatt_ingen_sikkerhetsoppdateringer_for_billettautomatene_til_kollektivtrafikken_i_Oslo_.html">still
+the case in 2016</a>. Given the response from the responsible people
+in 2016, I would assume the machines are still running unpatched
+Windows 2000. Thus, an unpatched Debian setup come as no surprise.</p>
+
+<p>The photo is made available under the license terms
+<a href="http://creativecommons.org/licenses/by/4.0/">Creative Commons
+4.0 Attribution International (CC BY 4.0)</a>.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/The_SysVinit_upstream_project_just_migrated_to_git.html">The SysVinit upstream project just migrated to git</a>
+ </div>
+ <div class="date">
+ 18th February 2018
+ </div>
+ <div class="body">
+ <p>Surprising as it might sound, there are still computers using the
+traditional Sys V init system, and there probably will be until
+systemd start working on Hurd and FreeBSD.
+<a href="https://savannah.nongnu.org/projects/sysvinit">The upstream
+project still exist</a>, though, and up until today, the upstream
+source was available from Savannah via subversion. I am happy to
+report that this just changed.</p>
+
+<p>The upstream source is now in Git, and consist of three
+repositories:</p>
+
+<ul>
+
+<li><a href="http://git.savannah.nongnu.org/cgit/sysvinit.git">sysvinit</a></li>
+<li><a href="http://git.savannah.nongnu.org/cgit/sysvinit/insserv.git">insserv</a></li>
+<li><a href="http://git.savannah.nongnu.org/cgit/sysvinit/startpar.git">startpar</a></li>
+
+</ul>
+
+<p>I do not really spend much time on the project these days, and I
+has mostly retired, but found it best to migrate the source to a good
+version control system to help those willing to move it forward.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Using_VLC_to_stream_bittorrent_sources.html">Using VLC to stream bittorrent sources</a>
+ </div>
+ <div class="date">
+ 14th February 2018
+ </div>
+ <div class="body">
+ <p>A few days ago, a new major version of
+<a href="https://www.videolan.org/">VLC</a> was announced, and I
+decided to check out if it now supported streaming over
+<a href="http://bittorrent.org/">bittorrent</a> and
+<a href="https://webtorrent.io">webtorrent</a>. Bittorrent is one of
+the most efficient ways to distribute large files on the Internet, and
+Webtorrent is a variant of Bittorrent using
+<a href="https://webrtc.org">WebRTC</a> as its transport channel,
+allowing web pages to stream and share files using the same technique.
+The network protocols are similar but not identical, so a client
+supporting one of them can not talk to a client supporting the other.
+I was a bit surprised with what I discovered when I started to look.
+Looking at
+<a href="https://www.videolan.org/vlc/releases/3.0.0.html">the release
+notes</a> did not help answering this question, so I started searching
+the web. I found several news articles from 2013, most of them
+tracing the news from Torrentfreak
+("<a href=https://torrentfreak.com/open-source-giant-vlc-mulls-bittorrent-support-130211/">Open
+Source Giant VLC Mulls BitTorrent Streaming Support</a>"), about a
+initiative to pay someone to create a VLC patch for bittorrent
+support. To figure out what happend with this initiative, I headed
+over to the #videolan IRC channel and asked if there were some bug or
+feature request tickets tracking such feature. I got an answer from
+lead developer Jean-Babtiste Kempf, telling me that there was a patch
+but neither he nor anyone else knew where it was. So I searched a bit
+more, and came across an independent
+<a href="https://github.com/johang/vlc-bittorrent">VLC plugin to add
+bittorrent support</a>, created by Johan Gunnarsson in 2016/2017.
+Again according to Jean-Babtiste, this is not the patch he was talking
+about.</p>
+
+<p>Anyway, to test the plugin, I made a working Debian package from
+the git repository, with some modifications. After installing this
+package, I could stream videos from
+<a href="https://www.archive.org/">The Internet Archive</a> using VLC
+commands like this:</p>
+
+<p><blockquote><pre>
+vlc https://archive.org/download/LoveNest/LoveNest_archive.torrent
+</pre></blockquote></p>
+
+<p>The plugin is supposed to handle magnet links too, but since The
+Internet Archive do not have magnet links and I did not want to spend
+time tracking down another source, I have not tested it. It can take
+quite a while before the video start playing without any indication of
+what is going on from VLC. It took 10-20 seconds when I measured it.
+Some times the plugin seem unable to find the correct video file to
+play, and show the metadata XML file name in the VLC status line. I
+have no idea why.</p>
+
+<p>I have created a <a href="https://bugs.debian.org/890360">request for
+a new package in Debian (RFP)</a> and
+<a href="https://github.com/johang/vlc-bittorrent/issues/1">asked if
+the upstream author is willing to help make this happen</a>. Now we
+wait to see what come out of this. I do not want to maintain a
+package that is not maintained upstream, nor do I really have time to
+maintain more packages myself, so I might leave it at this. But I
+really hope someone step up to do the packaging, and hope upstream is
+still maintaining the source. If you want to help, please update the
+RFP request or the upstream issue.</p>
+
+<p>I have not found any traces of webtorrent support for VLC.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Version_3_1_of_Cura__the_3D_print_slicer__is_now_in_Debian.html">Version 3.1 of Cura, the 3D print slicer, is now in Debian</a>
+ </div>
+ <div class="date">
+ 13th February 2018
+ </div>
+ <div class="body">
+ <p>A new version of the
+<a href="https://tracker.debian.org/pkg/cura">3D printer slicer
+software Cura</a>, version 3.1.0, is now available in Debian Testing
+(aka Buster) and Debian Unstable (aka Sid). I hope you find it
+useful. It was uploaded the last few days, and the last update will
+enter testing tomorrow. See the
+<a href="https://ultimaker.com/en/products/cura-software/release-notes">release
+notes</a> for the list of bug fixes and new features. Version 3.2
+was announced 6 days ago. We will try to get it into Debian as
+well.</p>
+
+<p>More information related to 3D printing is available on the
+<a href="https://wiki.debian.org/3DPrinting">3D printing</a> and
+<a href="https://wiki.debian.org/3D-printer">3D printer</a> wiki pages
+in Debian.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer</a>, <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/How_hard_can______and___be_.html">How hard can æ, ø and å be?</a>
+ </div>
+ <div class="date">
+ 11th February 2018
+ </div>
+ <div class="body">
+ <img src="http://people.skolelinux.org/pere/blog/images/2018-02-11-peppes-unicode.jpeg" align="right"/>
+
+<p>We write 2018, and it is 30 years since Unicode was introduced.
+Most of us in Norway have come to expect the use of our alphabet to
+just work with any computer system. But it is apparently beyond reach
+of the computers printing recites at a restaurant. Recently I visited
+a Peppes pizza resturant, and noticed a few details on the recite.
+Notice how 'ø' and 'å' are replaced with strange symbols in
+'Servitør', 'Å BETALE', 'Beløp pr. gjest', 'Takk for besøket.' and 'Vi
+gleder oss til å se deg igjen'.</p>
+
+<p>I would say that this state is passed sad and over in embarrassing.</p>
+
+<p>I removed personal and private information to be nice.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Legal_to_share_more_than_11_000_movies_listed_on_IMDB_.html">Legal to share more than 11,000 movies listed on IMDB?</a>
+ </div>
+ <div class="date">
+ 7th January 2018
+ </div>
+ <div class="body">
+ <p>I've continued to track down list of movies that are legal to
+distribute on the Internet, and identified more than 11,000 title IDs
+in The Internet Movie Database (IMDB) so far. Most of them (57%) are
+feature films from USA published before 1923. I've also tracked down
+more than 24,000 movies I have not yet been able to map to IMDB title
+ID, so the real number could be a lot higher. According to the front
+web page for <a href="https://retrofilmvault.com/">Retro Film
+Vault</A>, there are 44,000 public domain films, so I guess there are
+still some left to identify.</p>
+
+<p>The complete data set is available from
+<a href="https://github.com/petterreinholdtsen/public-domain-free-imdb">a
+public git repository</a>, including the scripts used to create it.
+Most of the data is collected using web scraping, for example from the
+"product catalog" of companies selling copies of public domain movies,
+but any source I find believable is used. I've so far had to throw
+out three sources because I did not trust the public domain status of
+the movies listed.</p>
+
+<p>Anyway, this is the summary of the 28 collected data sources so
+far:</p>
+
+<p><pre>
+ 2352 entries ( 66 unique) with and 15983 without IMDB title ID in free-movies-archive-org-search.json
+ 2302 entries ( 120 unique) with and 0 without IMDB title ID in free-movies-archive-org-wikidata.json
+ 195 entries ( 63 unique) with and 200 without IMDB title ID in free-movies-cinemovies.json
+ 89 entries ( 52 unique) with and 38 without IMDB title ID in free-movies-creative-commons.json
+ 344 entries ( 28 unique) with and 655 without IMDB title ID in free-movies-fesfilm.json
+ 668 entries ( 209 unique) with and 1064 without IMDB title ID in free-movies-filmchest-com.json
+ 830 entries ( 21 unique) with and 0 without IMDB title ID in free-movies-icheckmovies-archive-mochard.json
+ 19 entries ( 19 unique) with and 0 without IMDB title ID in free-movies-imdb-c-expired-gb.json
+ 6822 entries ( 6669 unique) with and 0 without IMDB title ID in free-movies-imdb-c-expired-us.json
+ 137 entries ( 0 unique) with and 0 without IMDB title ID in free-movies-imdb-externlist.json
+ 1205 entries ( 57 unique) with and 0 without IMDB title ID in free-movies-imdb-pd.json
+ 84 entries ( 20 unique) with and 167 without IMDB title ID in free-movies-infodigi-pd.json
+ 158 entries ( 135 unique) with and 0 without IMDB title ID in free-movies-letterboxd-looney-tunes.json
+ 113 entries ( 4 unique) with and 0 without IMDB title ID in free-movies-letterboxd-pd.json
+ 182 entries ( 100 unique) with and 0 without IMDB title ID in free-movies-letterboxd-silent.json
+ 229 entries ( 87 unique) with and 1 without IMDB title ID in free-movies-manual.json
+ 44 entries ( 2 unique) with and 64 without IMDB title ID in free-movies-openflix.json
+ 291 entries ( 33 unique) with and 474 without IMDB title ID in free-movies-profilms-pd.json
+ 211 entries ( 7 unique) with and 0 without IMDB title ID in free-movies-publicdomainmovies-info.json
+ 1232 entries ( 57 unique) with and 1875 without IMDB title ID in free-movies-publicdomainmovies-net.json
+ 46 entries ( 13 unique) with and 81 without IMDB title ID in free-movies-publicdomainreview.json
+ 698 entries ( 64 unique) with and 118 without IMDB title ID in free-movies-publicdomaintorrents.json
+ 1758 entries ( 882 unique) with and 3786 without IMDB title ID in free-movies-retrofilmvault.json
+ 16 entries ( 0 unique) with and 0 without IMDB title ID in free-movies-thehillproductions.json
+ 63 entries ( 16 unique) with and 141 without IMDB title ID in free-movies-vodo.json
+11583 unique IMDB title IDs in total, 8724 only in one list, 24647 without IMDB title ID
+</pre></p>
+
+<p> I keep finding more data sources. I found the cinemovies source
+just a few days ago, and as you can see from the summary, it extended
+my list with 63 movies. Check out the mklist-* scripts in the git
+repository if you are curious how the lists are created. Many of the
+titles are extracted using searches on IMDB, where I look for the
+title and year, and accept search results with only one movie listed
+if the year matches. This allow me to automatically use many lists of
+movies without IMDB title ID references at the cost of increasing the
+risk of wrongly identify a IMDB title ID as public domain. So far my
+random manual checks have indicated that the method is solid, but I
+really wish all lists of public domain movies would include unique
+movie identifier like the IMDB title ID. It would make the job of
+counting movies in the public domain a lot easier.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Cura__the_nice_3D_print_slicer__is_now_in_Debian_Unstable.html">Cura, the nice 3D print slicer, is now in Debian Unstable</a>
+ </div>
+ <div class="date">
+ 17th December 2017
+ </div>
+ <div class="body">
+ <p>After several months of working and waiting, I am happy to report
+that the nice and user friendly 3D printer slicer software Cura just
+entered Debian Unstable. It consist of five packages,
+<a href="https://tracker.debian.org/pkg/cura">cura</a>,
+<a href="https://tracker.debian.org/pkg/cura-engine">cura-engine</a>,
+<a href="https://tracker.debian.org/pkg/libarcus">libarcus</a>,
+<a href="https://tracker.debian.org/pkg/fdm-materials">fdm-materials</a>,
+<a href="https://tracker.debian.org/pkg/libsavitar">libsavitar</a> and
+<a href="https://tracker.debian.org/pkg/uranium">uranium</a>. The last
+two, uranium and cura, entered Unstable yesterday. This should make
+it easier for Debian users to print on at least the Ultimaker class of
+3D printers. My nearest 3D printer is an Ultimaker 2+, so it will
+make life easier for at least me. :)</p>
+
+<p>The work to make this happen was done by Gregor Riepl, and I was
+happy to assist him in sponsoring the packages. With the introduction
+of Cura, Debian is up to three 3D printer slicers at your service,
+Cura, Slic3r and Slic3r Prusa. If you own or have access to a 3D
+printer, give it a go. :)</p>
+
+<p>The 3D printer software is maintained by the 3D printer Debian
+team, flocking together on the
+<a href="http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/3dprinter-general">3dprinter-general</a>
+mailing list and the
+<a href="irc://irc.debian.org/#debian-3dprinting">#debian-3dprinting</a>
+IRC channel.</p>
+
+<p>The next step for Cura in Debian is to update the cura package to
+version 3.0.3 and then update the entire set of packages to version
+3.1.0 which showed up the last few days.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer</a>, <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Idea_for_finding_all_public_domain_movies_in_the_USA.html">Idea for finding all public domain movies in the USA</a>
+ </div>
+ <div class="date">
+ 13th December 2017
+ </div>
+ <div class="body">
+ <p>While looking at
+<a href="http://onlinebooks.library.upenn.edu/cce/">the scanned copies
+for the copyright renewal entries for movies published in the USA</a>,
+an idea occurred to me. The number of renewals are so few per year, it
+should be fairly quick to transcribe them all and add references to
+the corresponding IMDB title ID. This would give the (presumably)
+complete list of movies published 28 years earlier that did _not_
+enter the public domain for the transcribed year. By fetching the
+list of USA movies published 28 years earlier and subtract the movies
+with renewals, we should be left with movies registered in IMDB that
+are now in the public domain. For the year 1955 (which is the one I
+have looked at the most), the total number of pages to transcribe is
+21. For the 28 years from 1950 to 1978, it should be in the range
+500-600 pages. It is just a few days of work, and spread among a
+small group of people it should be doable in a few weeks of spare
+time.</p>
+
+<p>A typical copyright renewal entry look like this (the first one
+listed for 1955):</p>
+
+<p><blockquote>
+ ADAM AND EVIL, a photoplay in seven reels by Metro-Goldwyn-Mayer
+ Distribution Corp. (c) 17Aug27; L24293. Loew's Incorporated (PWH);
+ 10Jun55; R151558.
+</blockquote></p>
+
+<p>The movie title as well as registration and renewal dates are easy
+enough to locate by a program (split on first comma and look for
+DDmmmYY). The rest of the text is not required to find the movie in
+IMDB, but is useful to confirm the correct movie is found. I am not
+quite sure what the L and R numbers mean, but suspect they are
+reference numbers into the archive of the US Copyright Office.</p>
+
+<p>Tracking down the equivalent IMDB title ID is probably going to be
+a manual task, but given the year it is fairly easy to search for the
+movie title using for example
+<a href="http://www.imdb.com/find?q=adam+and+evil+1927&s=all">http://www.imdb.com/find?q=adam+and+evil+1927&s=all</a>.
+Using this search, I find that the equivalent IMDB title ID for the
+first renewal entry from 1955 is
+<a href="http://www.imdb.com/title/tt0017588/">http://www.imdb.com/title/tt0017588/</a>.</p>
+
+<p>I suspect the best way to do this would be to make a specialised
+web service to make it easy for contributors to transcribe and track
+down IMDB title IDs. In the web service, once a entry is transcribed,
+the title and year could be extracted from the text, a search in IMDB
+conducted for the user to pick the equivalent IMDB title ID right
+away. By spreading out the work among volunteers, it would also be
+possible to make at least two persons transcribe the same entries to
+be able to discover any typos introduced. But I will need help to
+make this happen, as I lack the spare time to do all of this on my
+own. If you would like to help, please get in touch. Perhaps you can
+draft a web service for crowd sourcing the task?</p>
+
+<p>Note, Project Gutenberg already have some
+<a href="http://www.gutenberg.org/ebooks/search/?query=copyright+office+renewals">transcribed
+copies of the US Copyright Office renewal protocols</a>, but I have
+not been able to find any film renewals there, so I suspect they only
+have copies of renewal for written works. I have not been able to find
+any transcribed versions of movie renewals so far. Perhaps they exist
+somewhere?</p>
+
+<p>I would love to figure out methods for finding all the public
+domain works in other countries too, but it is a lot harder. At least
+for Norway and Great Britain, such work involve tracking down the
+people involved in making the movie and figuring out when they died.
+It is hard enough to figure out who was part of making a movie, but I
+do not know how to automate such procedure without a registry of every
+person involved in making movies and their death year.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Is_the_short_movie__Empty_Socks__from_1927_in_the_public_domain_or_not_.html">Is the short movie «Empty Socks» from 1927 in the public domain or not?</a>
+ </div>
+ <div class="date">
+ 5th December 2017
+ </div>
+ <div class="body">
+ <p>Three years ago, a presumed lost animation film,
+<a href="https://en.wikipedia.org/wiki/Empty_Socks">Empty Socks from
+1927</a>, was discovered in the Norwegian National Library. At the
+time it was discovered, it was generally assumed to be copyrighted by
+The Walt Disney Company, and I blogged about
+<a href="http://people.skolelinux.org/pere/blog/Opphavsretts_status_for__Empty_Socks__fra_1927_.html">my
+reasoning to conclude</a> that it would would enter the Norwegian
+equivalent of the public domain in 2053, based on my understanding of
+Norwegian Copyright Law. But a few days ago, I came across
+<a href="http://www.toonzone.net/forums/threads/exposed-disneys-repurchase-of-oswald-the-rabbit-a-sham.4792291/">a
+blog post claiming the movie was already in the public domain</a>, at
+least in USA. The reasoning is as follows: The film was released in
+November or Desember 1927 (sources disagree), and presumably
+registered its copyright that year. At that time, right holders of
+movies registered by the copyright office received government
+protection for there work for 28 years. After 28 years, the copyright
+had to be renewed if the wanted the government to protect it further.
+The blog post I found claim such renewal did not happen for this
+movie, and thus it entered the public domain in 1956. Yet someone
+claim the copyright was renewed and the movie is still copyright
+protected. Can anyone help me to figure out which claim is correct?
+I have not been able to find Empty Socks in Catalog of copyright
+entries. Ser.3 pt.12-13 v.9-12 1955-1958 Motion Pictures
+<a href="http://onlinebooks.library.upenn.edu/cce/1955r.html#film">available
+from the University of Pennsylvania</a>, neither in
+<a href="https://babel.hathitrust.org/cgi/pt?id=mdp.39015084451130;page=root;view=image;size=100;seq=83;num=45">page
+45 for the first half of 1955</a>, nor in
+<a href="https://babel.hathitrust.org/cgi/pt?id=mdp.39015084451130;page=root;view=image;size=100;seq=175;num=119">page
+119 for the second half of 1955</a>. It is of course possible that
+the renewal entry was left out of the printed catalog by mistake. Is
+there some way to rule out this possibility? Please help, and update
+the wikipedia page with your findings.
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Metadata_proposal_for_movies_on_the_Internet_Archive.html">Metadata proposal for movies on the Internet Archive</a>
+ </div>
+ <div class="date">
+ 28th November 2017
+ </div>
+ <div class="body">
+ <p>It would be easier to locate the movie you want to watch in
+<a href="https://www.archive.org/">the Internet Archive</a>, if the
+metadata about each movie was more complete and accurate. In the
+archiving community, a well known saying state that good metadata is a
+love letter to the future. The metadata in the Internet Archive could
+use a face lift for the future to love us back. Here is a proposal
+for a small improvement that would make the metadata more useful
+today. I've been unable to find any document describing the various
+standard fields available when uploading videos to the archive, so
+this proposal is based on my best quess and searching through several
+of the existing movies.</p>
+
+<p>I have a few use cases in mind. First of all, I would like to be
+able to count the number of distinct movies in the Internet Archive,
+without duplicates. I would further like to identify the IMDB title
+ID of the movies in the Internet Archive, to be able to look up a IMDB
+title ID and know if I can fetch the video from there and share it
+with my friends.</p>
+
+<p>Second, I would like the Butter data provider for The Internet
+archive
+(<a href="https://github.com/butterproviders/butter-provider-archive">available
+from github</a>), to list as many of the good movies as possible. The
+plugin currently do a search in the archive with the following
+parameters:</p>
+
+<p><pre>
+collection:moviesandfilms
+AND NOT collection:movie_trailers
+AND -mediatype:collection
+AND format:"Archive BitTorrent"
+AND year
+</pre></p>
+
+<p>Most of the cool movies that fail to show up in Butter do so
+because the 'year' field is missing. The 'year' field is populated by
+the year part from the 'date' field, and should be when the movie was
+released (date or year). Two such examples are
+<a href="https://archive.org/details/SidneyOlcottsBen-hur1905">Ben Hur
+from 1905</a> and
+<a href="https://archive.org/details/Caminandes2GranDillama">Caminandes
+2: Gran Dillama from 2013</a>, where the year metadata field is
+missing.</p>
+
+So, my proposal is simply, for every movie in The Internet Archive
+where an IMDB title ID exist, please fill in these metadata fields
+(note, they can be updated also long after the video was uploaded, but
+as far as I can tell, only by the uploader):
+
+<dl>
+
+<dt>mediatype</dt>
+<dd>Should be 'movie' for movies.</dd>
+
+<dt>collection</dt>
+<dd>Should contain 'moviesandfilms'.</dd>
+
+<dt>title</dt>
+<dd>The title of the movie, without the publication year.</dd>
+
+<dt>date</dt>
+<dd>The data or year the movie was released. This make the movie show
+up in Butter, as well as make it possible to know the age of the
+movie and is useful to figure out copyright status.</dd>
+
+<dt>director</dt>
+<dd>The director of the movie. This make it easier to know if the
+correct movie is found in movie databases.</dd>
+
+<dt>publisher</dt>
+<dd>The production company making the movie. Also useful for
+identifying the correct movie.</dd>
+
+<dt>links</dt>
+
+<dd>Add a link to the IMDB title page, for example like this: <a
+href="http://www.imdb.com/title/tt0028496/">Movie in
+IMDB</a>. This make it easier to find duplicates and allow for
+counting of number of unique movies in the Archive. Other external
+references, like to TMDB, could be added like this too.</dd>
+
+</dl>
+
+<p>I did consider proposing a Custom field for the IMDB title ID (for
+example 'imdb_title_url', 'imdb_code' or simply 'imdb', but suspect it
+will be easier to simply place it in the links free text field.</p>
+
+<p>I created
+<a href="https://github.com/petterreinholdtsen/public-domain-free-imdb">a
+list of IMDB title IDs for several thousand movies in the Internet
+Archive</a>, but I also got a list of several thousand movies without
+such IMDB title ID (and quite a few duplicates). It would be great if
+this data set could be integrated into the Internet Archive metadata
+to be available for everyone in the future, but with the current
+policy of leaving metadata editing to the uploaders, it will take a
+while before this happen. If you have uploaded movies into the
+Internet Archive, you can help. Please consider following my proposal
+above for your movies, to ensure that movie is properly
+counted. :)</p>
+
+<p>The list is mostly generated using wikidata, which based on
+Wikipedia articles make it possible to link between IMDB and movies in
+the Internet Archive. But there are lots of movies without a
+Wikipedia article, and some movies where only a collection page exist
+(like for <a href="https://en.wikipedia.org/wiki/Caminandes">the
+Caminandes example above</a>, where there are three movies but only
+one Wikidata entry).</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Legal_to_share_more_than_3000_movies_listed_on_IMDB_.html">Legal to share more than 3000 movies listed on IMDB?</a>
+ </div>
+ <div class="date">
+ 18th November 2017
+ </div>
+ <div class="body">
+ <p>A month ago, I blogged about my work to
+<a href="http://people.skolelinux.org/pere/blog/Locating_IMDB_IDs_of_movies_in_the_Internet_Archive_using_Wikidata.html">automatically
+check the copyright status of IMDB entries</a>, and try to count the
+number of movies listed in IMDB that is legal to distribute on the
+Internet. I have continued to look for good data sources, and
+identified a few more. The code used to extract information from
+various data sources is available in
+<a href="https://github.com/petterreinholdtsen/public-domain-free-imdb">a
+git repository</a>, currently available from github.</p>
+
+<p>So far I have identified 3186 unique IMDB title IDs. To gain
+better understanding of the structure of the data set, I created a
+histogram of the year associated with each movie (typically release
+year). It is interesting to notice where the peaks and dips in the
+graph are located. I wonder why they are placed there. I suspect
+World War II caused the dip around 1940, but what caused the peak
+around 2010?</p>
+
+<p align="center"><img src="http://people.skolelinux.org/pere/blog/images/2017-11-18-verk-i-det-fri-filmer.png" /></p>
+
+<p>I've so far identified ten sources for IMDB title IDs for movies in
+the public domain or with a free license. This is the statistics
+reported when running 'make stats' in the git repository:</p>
+
+<pre>
+ 249 entries ( 6 unique) with and 288 without IMDB title ID in free-movies-archive-org-butter.json
+ 2301 entries ( 540 unique) with and 0 without IMDB title ID in free-movies-archive-org-wikidata.json
+ 830 entries ( 29 unique) with and 0 without IMDB title ID in free-movies-icheckmovies-archive-mochard.json
+ 2109 entries ( 377 unique) with and 0 without IMDB title ID in free-movies-imdb-pd.json
+ 291 entries ( 122 unique) with and 0 without IMDB title ID in free-movies-letterboxd-pd.json
+ 144 entries ( 135 unique) with and 0 without IMDB title ID in free-movies-manual.json
+ 350 entries ( 1 unique) with and 801 without IMDB title ID in free-movies-publicdomainmovies.json
+ 4 entries ( 0 unique) with and 124 without IMDB title ID in free-movies-publicdomainreview.json
+ 698 entries ( 119 unique) with and 118 without IMDB title ID in free-movies-publicdomaintorrents.json
+ 8 entries ( 8 unique) with and 196 without IMDB title ID in free-movies-vodo.json
+ 3186 unique IMDB title IDs in total
+</pre>
+
+<p>The entries without IMDB title ID are candidates to increase the
+data set, but might equally well be duplicates of entries already
+listed with IMDB title ID in one of the other sources, or represent
+movies that lack a IMDB title ID. I've seen examples of all these
+situations when peeking at the entries without IMDB title ID. Based
+on these data sources, the lower bound for movies listed in IMDB that
+are legal to distribute on the Internet is between 3186 and 4713.
+
+<p>It would be great for improving the accuracy of this measurement,
+if the various sources added IMDB title ID to their metadata. I have
+tried to reach the people behind the various sources to ask if they
+are interested in doing this, without any replies so far. Perhaps you
+can help me get in touch with the people behind VODO, Public Domain
+Torrents, Public Domain Movies and Public Domain Review to try to
+convince them to add more metadata to their movie entries?</p>
+
+<p>Another way you could help is by adding pages to Wikipedia about
+movies that are legal to distribute on the Internet. If such page
+exist and include a link to both IMDB and The Internet Archive, the
+script used to generate free-movies-archive-org-wikidata.json should
+pick up the mapping as soon as wikidata is updates.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+
+ </div>
+ <div class="tags">
+
+
+ Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
projects / homepage.git / blobdiff