X-Git-Url: http://pere.pagekite.me/gitweb/homepage.git/blobdiff_plain/b2642f1921797c2600da902d19e93d7bc138d02e..55372de68ea018b89d8bc929ee1a9b90e9a7cf73:/blog/index.html diff --git a/blog/index.html b/blog/index.html index 866f8a1a00..708b325ccf 100644 --- a/blog/index.html +++ b/blog/index.html @@ -19,6 +19,355 @@ +
+
MakerCon Nordic videos now available on Frikanalen
+
2nd July 2015
+

Last oktober I was involved on behalf of +NUUG with recording the talks at +MakerCon Nordic, a conference for +the Maker movement. Since then it has been the plan to publish the +recordings on Frikanalen, which +finally happened the last few days. A few talks are missing because +the speakers asked the organizers to not publish them, but most of the +talks are available. The talks are being broadcasted on RiksTV +channel 50 and using multicast on Uninett, as well as being available +from the Frikanalen web site. The unedited recordings are +available on +Youtube too.

+ +

This is the list of talks available at the moment. Visit the +Frikanalen video +pages to view them.

+ + + +

Part of the reason this took so long was that the scripts NUUG had +to prepare a recording for publication were five years old and no +longer worked with the current video processing tools (command line +argument changes). In addition, we needed better audio normalization, +which sent me on a detour to +package +bs1770gain for Debian. Now this is in place and it became a lot +easier to publish NUUG videos on Frikanalen.

+
+
+ + + Tags: english, frikanalen, multimedia, video. + + +
+
+
+ +
+
Hvem fører Medietilsynet tilsyn med?
+
28th June 2015
+

I en global verden med eierskap på tvers, trengs det informasjon om +hvem som har kontrollen i selskaper og bedrifter. Og for å få tilgang +til slik informasjon for alle som ønsker å analysere eierskap, holder +med ikke med nasjonale databaser over eierskap, det må globale +samledatabaser med åpne data til. Heldigvis finnes det en +internasjonal bevegelse for å gjøre selskapsinformasjon for alle land +offentlig tilgjengelig. En slik database heter +OpenCorporates, der +informasjonen er gratis tilgjengelig med en "del på samme +vilkår"-lisens. De samler inn selskapsinformasjon, eierskap, +konsesjonstildelinger og lignende. De manglet ganske mye for Norge, +da bruksvilkårene til Norsk offentlig informasjon i stor grad +blokkerer OpenCorporates fra å samle den inn.

+ +

Men jeg er jo involvert i +Frikanalen, som har +TV-konsesjon, og tenkte det kunne være fint om informasjon om alle +mediakonsesjoner var tilgjengelig i OpenCorporates, så jeg sendte +avgårde følgende spørsmål til Medietilsynet 2015-06-22:

+ +
+

Hei. Finnes det en oversikt over enhetene som Mediatilsynet fører +tilsyn med som åpne data? Jeg lette etter den på +<URL:http://data.norge.no/> og +<URL:http://hotell.difi.no/> uten å +finne noe der, og fant heller ikke noe under +<URL:http://www.medietilsynet.no/>.

+ +

Jeg tenker på alle som har fått kringkastingskonsesjon og alle som +er omtalt under +<URL:http://www.medietilsynet.no/mediebildet/>.

+ +

Jeg skulle gjerne hatt dette maskinlesbart, og inkludert +organisasjonsnummer og hva slags forhold mediatilsynet har til +organisasjonene. Tanken er å importere det i +<URL:https://opencorporates.com/> for analyse, så det bør ikke ha +bruksbegresninger som gjør dette umulig.

+
+ +

To dager senere fikk jeg svar, med de datasettene de hadde +tilgjengelig. Svaret fra Hanne Sekkelsten hos Medietilsynet var +informativt og imøtekommende.

+ +
+

Vi viser til din e-post av 22. juni, der du ber om å få tilsendt oversikter +over aktører Medietilsynet fører tilsyn med.

+ +

Medietilsynet fører tilsyn med kringkastere og audiovisuelle +bestillingstjenester som omfattes av kringkastingsloven, og med +eierskap i aviser, fjernsyn radio og elektroniske medier etter +medieeierskapsloven. I tillegg vil Medietilsynet etter at +beskyttelsesloven trer i kraft fra 1. juli ha tilsyn med en rekke nye +aktører. Nærmere informasjon om den nye loven finnes på Medietilsynets +nettsted, her: +http://www.medietilsynet.no/mediebransjen/bildeprogramloven/ +. Vi har ikke utarbeidet oversikter over alle aktørene, men vi sender +deg her de listene vi har utarbeidet, hentet fra våre databaser. Vi +har dessverre ikke ferdige rapporter som inneholder +organisasjonsnummer. Dersom du ønsker flere opplysninger ber vi om at +du tar kontakt med oss slik at vi kan finne ut av hvilke opplysninger +du trenger, og hvilke vi kan fremskaffe.

+ +

Vedlagt følger: + +

    + +
  • Konsesjoner - lokalradio FM pr. 31.12.2014 [PDF (original)]
    • + +
  • Konsesjoner - lokalfjernsyn i det digitale bakkenettet for fjernsyn, pr. mars 2015 [DOCX (original), +PDF]
    • + +
  • Konsesjoner - DAB-radio, status mars 2015 [XPS (original), +PDF]
    • + +
  • Registreringspliktige kringkastere - status mars 2015: [XPS (original), PDF] + +
      +
    • Kabelsendt fjernsyn +
    • Satellittsendt fjernsyn +
    • Nett-tv +
    • Kabelsendt radio +
    • Satellittsendt radio +
    • Nett-radio +
    • +
+ +

Vi må ta forbehold om at det kan være enkelte feil i oversiktene +siden disse ikke er oppdaterte pr. dags dato. Vi vil foreta nye +oppdateringer i august.

+ +

Med hilsen

+ +

Hanne Nistad Sekkelsten +
Seniorrådgiver | Senior Legal Adviser +
Medietilsynet | Norwegian Media Authority +
A: Nygata 4, NO-1607 Fredrikstad +
T: [telefonnummer fjernet] +
E: [adresse fjernet] | W: www.medietilsynet.no +

+
+ +

Desverre er formatene for ustrukturerte til maskinell behandling og +mangler endel informasjon, men det er gode oversikter over hvem +Medietilsynet fører tilsyn med. Filene er på formatene PDF, XPS +(XML-basert PDF-lignende format fra Microsoft) og DOCX, så det vil +være en stor jobb å strukturere informasjonen på en måte som kan +importeres i OpenCorporates. Svaret er ikke i tråd med +Forskrift +om IT-standarder i offentlig forvaltning som sier epostvedlegg +skal sendes som PDF, så jeg har gjorde PDF-utgaver av XPS og +DOCX-utgavene tilgjengelig for å gjøre det enklere for alle å se +innholdet.

+
+
+ + + Tags: norsk, offentlig innsyn. + + +
+
+
+ +
+
Graphing the Norwegian company ownership structure
+
15th June 2015
+

It is a bit work to figure out the ownership structure of companies +in Norway. The information is publicly available, but one need to +recursively look up ownership for all owners to figure out the complete +ownership graph of a given set of companies. To save me the work in +the future, I wrote a script to do this automatically, outputting the +ownership structure using the Graphviz/dotty format. The data source +is web scraping from Proff, because +I failed to find a useful source directly from the official keepers of +the ownership data, Brønnøysundsregistrene.

+ +

To get an ownership graph for a set of companies, fetch +the code from git and run it using the organisation number. I'm +using the Norwegian newspaper Dagbladet as an example here, as its +ownership structure is very simple:

+ +
+% time ./bin/eierskap-dotty 958033540 > dagbladet.dot
+
+real    0m2.841s
+user    0m0.184s
+sys     0m0.036s
+%
+
+ +

The script accept several organisation numbers on the command line, +allowing a cluster of companies to be graphed in the same image. The +resulting dot file for the example above look like this. The edges +are labeled with the ownership percentage, and the nodes uses the +organisation number as their name and the name as the label:

+ +
+digraph ownership {
+rankdir = LR;
+"Aller Holding A/s" -> "910119877" [label="100%"]
+"910119877" -> "998689015" [label="100%"]
+"998689015" -> "958033540" [label="99%"]
+"974530600" -> "958033540" [label="1%"]
+"958033540" [label="AS DAGBLADET"]
+"998689015" [label="Berner Media Holding AS"]
+"974530600" [label="Dagbladets Stiftelse"]
+"910119877" [label="Aller Media AS"]
+}
+
+ +

To view the ownership graph, run "dotty dagbladet.dot" or +convert it to a PNG using "dot -T png dagbladet.dot > +dagbladet.png". The result can be seen below:

+ + + +

Note that I suspect the "Aller Holding A/S" entry to be incorrect +data in the official ownership register, as that name is not +registered in the official company register for Norway. The ownership +register is sensitive to typos and there seem to be no strict checking +of the ownership links.

+ +

Let me know if you improve the script or find better data sources. +The code is licensed according to GPL 2 or newer.

+ +

Update 2015-06-15: Since the initial post I've been told that +"Aller +Holding A/S" is a Danish company, which explain why it did not +have a Norwegian organisation number. I've also been told that there +is a web +services API available from Brønnøysundsregistrene, for those +willing to accept the terms or pay the price.

+
+
+ + + Tags: english, offentlig innsyn. + + +
+
+
+ +
+
Measuring and adjusting the loudness of a TV channel using bs1770gain
+
11th June 2015
+

Television loudness is the source of frustration for viewers +everywhere. Some channels are very load, others are less loud, and +ads tend to shout very high to get the attention of the viewers, and +the viewers do not like this. This fact is well known to the TV +channels. See for example the BBC white paper +"Terminology +for loudness and level dBTP, LU, and all that" from 2011 for a +summary of the problem domain. To better address the need for even +loadness, the TV channels got together several years ago to agree on a +new way to measure loudness in digital files as one step in +standardizing loudness. From this came the ITU-R standard BS.1770, +"Algorithms to +measure audio programme loudness and true-peak audio level".

+ +

The ITU-R BS.1770 specification describe an algorithm to measure +loadness in LUFS (Loudness Units, referenced to Full Scale). But +having a way to measure is not enough. To get the same loudness +across TV channels, one also need to decide which value to standardize +on. For European TV channels, this was done in the EBU Recommondaton +R128, "Loudness +normalisation and permitted maximum level of audio signals", which +specifies a recommended level of -23 LUFS. In Norway, I have been +told that NRK, TV2, MTG and SBS have decided among themselves to +follow the R128 recommondation for playout from 2016-03-01.

+ +

There are free software available to measure and adjust the loudness +level using the LUFS. In Debian, I am aware of a library named +libebur128 +able to measure the loudness and since yesterday morning a new binary +named bs1770gain +capable of both measuring and adjusting was uploaded and is waiting +for NEW processing. I plan to maintain the latter in Debian under the +Debian +multimedia umbrella.

+ +

The free software based TV channel I am involved in, +Frikanalen, plan to follow the +R128 recommondation ourself as soon as we can adjust the software to +do so, and the bs1770gain tool seem like a good fit for that part of +the puzzle to measure loudness on new video uploaded to Frikanalen. +Personally, I plan to use bs1770gain to adjust the loudness of videos +I upload to Frikanalen on behalf of the +NUUG member organisation. The program seem to be able to measure +the LUFS value of any media file handled by ffmpeg, but I've only +successfully adjusted the LUFS value of WAV files. I suspect it +should be able to adjust it for all the formats handled by ffmpeg.

+
+
+ + + Tags: english, frikanalen, multimedia, video. + + +
+
+
+
Hva gjør at NRK kan distribuere H.264-video uten patentavtale med MPEG LA?
10th June 2015
@@ -345,7 +694,7 @@ enn privat og ikke-kommersiell bruk.

- Tags: multimedia, norsk, opphavsrett, standard, video, web. + Tags: h264, multimedia, norsk, opphavsrett, standard, video, web.
@@ -965,170 +1314,6 @@ there was :

-
-
I'm going to the Open Source Developers' Conference Nordic 2015!
-
7th April 2015
-

I am happy to let you all know that I'm going to the Open Source Developers' -Conference Nordic 2015!

- -

It take place Friday 8th to Sunday 10th of May in Oslo next to -where I work, and I finally got around to submitting -a talk proposal for -it (dead link for most people until the talk is accepted). As -part of my involvement with the -Norwegian Unix User Group member -association I have been slightly involved in the planning of this -conference for a while now, with a focus on organising a Civic Hacking -Hackathon with our friends -over at mySociety and -Holder de ord. This part is -named the 'My Society' track in the program. There is still space for -more talks and participants. I hope to see you there.

- -

Check out the talks -submitted and accepted so far.

-
-
- - - Tags: english, fiksgatami, nuug, offentlig innsyn. - - -
-
-
- -
-
Proof reading the Norwegian translation of Free Culture by Lessig
-
4th April 2015
-

During eastern I had some time to continue working on the Norwegian -docbook version of the 2004 book -Free Culture by Lawrence Lessig. -At the moment I am proof reading the finished text, looking for typos, -inconsistent wordings and sentences that do not flow as they should. -I'm more than two thirds done with the text, and welcome others to -check the text up to chapter 13. The current status is available on the -github -project pages. You can also check out the -PDF, -EPUB -and HTML version available in the -archive -directory.

- -

Please report typos, bugs and improvements to the github project if -you find any.

-
-
- - - Tags: docbook, english, freeculture. - - -
-
-
- -
-
Frikanalen, Norwegian TV channel for technical topics
-
9th March 2015
-

The Norwegian Unix User Group, -where I am a member, and where people interested in free software, -open standards and UNIX like operating systems like Linux and the BSDs -come together, record our monthly technical presentations on video. -The purpose is to document the talks and spread them to a wider -audience. For this, the the Norwegian nationwide open channel -Frikanalen is a useful venue. -Since a few days ago, when I figured out the -REST API to program the -channel time schedule, -the channel has been filled with NUUG talks, related recordings and -some Creative Commons licensed TED talks (from archive.org). I fill -all "leftover bits" on the channel with content from NUUG, which at -the moment is almost 17 of 24 hours every day.

- -

The list of NUUG videos -uploaded so far -include things like a -one hour talk by John -Perry Barlow when he visited Oslo, a presentation of -Haiku, the BeOS -re-implementation, the -history of FiksGataMi, -the Norwegian version of FixMyStreet, the good old -Warriors of the net -video and many others.

- -

We have a large backlog of NUUG talks not yet uploaded to -Frikanalen, and plan to upload every useful bit to the channel to -spread the word there. I also hope to find useful recordings from the -Chaos Computer Club and Debian conferences and spread them on the -channel as well. But this require locating the videos and their meta -information (title, description, license, etc), and preparing the -recordings for broadcast, and I have not yet had the spare time to -focus on this. Perhaps you want to help. Please join us on IRC, -#nuug on irc.freenode.net -if you want to help make this happen.

- -

But as I said, already the channel is already almost exclusively -filled with technical topics, and if you want to learn something new -today, check out the Ogg Theora -web stream or use one of the other ways to get access to the -channel. Unfortunately the Ogg Theora recoding for distribution still -do not properly sync the video and sound. It is generated by recoding -a internal MPEG transport stream with MPEG4 coded video (ie H.264) to -Ogg Theora / Vorbis, and we have not been able to find a way that -produces acceptable quality. Help needed, please get in touch if you -know how to fix it using free software.

-
-
- - - Tags: english, frikanalen, nuug, video. - - -
-
-
- -
-
The Citizenfour documentary on the Snowden confirmations to Norway
-
28th February 2015
-

Today I was happy to learn that the documentary -Citizenfour by -Laura Poitras -finally will show up in Norway. According to the magazine -Montages, a deal has finally been -made for -Cinema -distribution in Norway and the movie will have its premiere soon. -This is great news. As part of my involvement with -the Norwegian Unix User Group, me and -a friend have -tried -to get the movie to Norway ourselves, but obviously -we -were too late and Tor Fosse beat us to it. I am happy he did, as -the movie will make its way to the public and we do not have to make -it happen ourselves. -The trailer -can be seen on youtube, if you are curious what kind of film this -is.

- -

The whistle blower Edward Snowden really deserve political asylum -here in Norway, but I am afraid he would not be safe.

-
-
- - - Tags: english, nuug, personvern, surveillance. - - -
-
-
-

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