X-Git-Url: http://pere.pagekite.me/gitweb/homepage.git/blobdiff_plain/7e36d7f1ee3064b18e93a22e424476eb8b4e0b64..9c0028016e6f31a004dc484b21958b8ccd5b5e9e:/blog/index.html diff --git a/blog/index.html b/blog/index.html index cb89379d47..05bf2aa1b2 100644 --- a/blog/index.html +++ b/blog/index.html @@ -20,79 +20,438 @@
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Measuring the speaker frequency response using the AUDMES free software GUI - nice free software
-
22nd October 2018
-

+ +
16th January 2019
+

I forrige uke var jeg i Borgarting lagmannsrett som partshjelper og + sakkyndig vitne og presenterte mine oppdaterte undersøkelser rundt + telling + av filmverk i det fri, relatert til + foreningen NUUGs involvering i saken om + Økokrims beslag og senere inndragning av DNS-domenet + popcorn-time.no. I forkant hadde jeg oppdatert mitt notat med + kommentarer til et av aktors bevis, som forsøkte å måle hvor stor + andel ulovligheter som var tilgjengelig via Popcorn Time-avspillere. + Jeg mistenker flere kan ha glede av å lese dette notatet, som jeg + publiserte en tidligere versjon av i fjor, så her er det. Legger + også ved avskrift av dokument 09,13, som er det sentrale dokumentet + jeg kommenterer.

+ +

Oppdaterte kommentarer til «Evaluation of (il)legality» for +Popcorn Time

+ +

Oppsummering

+ +

Målemetoden som Økokrim har lagt til grunn når de påstår at 99% av + filmene tilgjengelig fra Popcorn Time deles ulovlig har svakheter + som gjør resultatet upålitelig.

+ +

De eller den som har vurdert hvorvidt filmer kan lovlig deles er + ikke i stand til å identifisere filmer som kan deles lovlig eller er + falt i det fri og har tilsynelatende antatt at kun veldig gamle + filmer kan deles lovlig. Økokrim legger til grunn at det bare finnes + èn film, Charlie Chaplin-filmen «The Circus» fra 1928, som kan deles + fritt blant de som ble observert tilgjengelig via ulike Popcorn + Time-varianter. Med min begrensede og ufullstendige oversikt finner + jeg tre flere blant de observerte filmene: «The Brain That Wouldn't + Die» fra 1962, «God’s Little Acre» fra 1958 og «She Wore a Yellow + Ribbon» fra 1949. Det er godt mulig det finnes flere. Det finnes + dermed minst fire ganger så mange filmer som lovlig kan deles på + Internett i datasettet Økokrim har lagt til grunn når det påstås at + mindre enn 1 % kan deles lovlig.

+ +

Dernest, utplukket som gjøres ved søk på tilfeldige ord hentet fra + ordlisten til Dale-Chall avviker fra årsfordelingen til de brukte + filmkatalogene som helhet, hvilket påvirker fordelingen mellom + filmer som kan lovlig deles og filmer som ikke kan lovlig deles. I + tillegg gir valg av øvre del (de fem første) av søkeresultatene et + avvik fra riktig årsfordeling, hvilket påvirker fordelingen av verk + i det fri i søkeresultatet.

+ +

Til sist er det viktig å merke seg at det som måles er ikke + (u)lovligheten knyttet til bruken av Popcorn Time, + men (u)lovligheten til innholdet i ulike bittorrent-filmkataloger + som vedlikeholdes av ulike miljøer uavhengig av Popcorn Time, og som + ulike Popcorn Time-varianter har benyttet seg av.

+ +

Omtalte dokumenter: 09,12, 09,13, 09,14, + 09,18, 09,19, 09,20.

+ +

Utfyllende kommentarer

+ +

Økokrim har forklart domstolene at minst 99% av alt som er + tilgjengelig fra ulike Popcorn Time-varianter deles ulovlig på + Internet. Jeg ble nysgjerrig på hvordan de er kommet frem til dette + tallet, og dette notatet er en samling kommentarer rundt målingen + Økokrim henviser til. Litt av bakgrunnen for at jeg valgte å se på + saken er at jeg er interessert i å identifisere og telle hvor mange + kunstneriske verk som er falt i det fri eller av andre grunner kan + lovlig deles på Internett, og dermed var interessert i hvordan en + hadde funnet den ene prosenten som kanskje deles lovlig.

+ +

Andelen på 99% kommer fra et ukreditert og udatert notatet som tar + mål av seg å dokumentere en metode for å måle hvor (u)lovlig ulike + Popcorn Time-varianter er.

+ +

Raskt oppsummert, så forteller metodedokumentet at fordi det ikke + er mulig å få tak i komplett liste over alle filmtitler tilgjengelig + via Popcorn Time, så lages noe som skal være et representativt + utvalg ved å velge 50 tilfeldige søkeord større enn tre tegn fra en + ordliste kjent som Dale-Chall. For hvert søkeord gjøres et søk og de + første fem filmene i søkeresultatet samles inn inntil 100 unike + filmtitler er funnet. Hvis 50 søkeord ikke var tilstrekkelig for å + nå 100 unike filmtitler ble flere filmer fra hvert søkeresultat lagt + til. Hvis dette heller ikke var tilstrekkelig, så ble det hentet ut + og søkt på flere tilfeldig valgte søkeord inntil 100 unike + filmtitler var identifisert.

+ +

Deretter ble for hver av filmtitlene «vurdert hvorvidt det var + rimelig å forvente om at verket var vernet av copyright, ved å se på + om filmen var tilgjengelig i IMDB, samt se på regissør, + utgivelsesår, når det var utgitt for bestemte markedsområder samt + hvilke produksjons- og distribusjonsselskap som var registrert» (min + oversettelse).

+ +

Metoden er gjengitt både i de ukrediterte dokumentene 09,13 og + 09,19, samt beskrevet fra side 47 i dokument 09,20, lysark datert + 2017-02-01. Sistnevnte er kreditert Geerart Bourlon fra Motion + Picture Association EMEA.

+ +

Metoden virker å ha flere svakheter som gir resultatene en + slagside. Den starter med å slå fast at det ikke er mulig å hente ut + en komplett liste over alle filmtitler som er tilgjengelig, og at + dette er bakgrunnen for metodevalget. Denne forutsetningen er ikke i + tråd med det som står i dokument 09,12, som ikke heller har oppgitt + forfatter og dato. Dokument 09,12 forteller hvordan hele + kataloginnholdet i en bittorrent-katalog ble lasted ned og talt + opp. Dokument 09,12 er muligens samme rapport som det ble referert + til i dom fra Oslo Tingrett 2017-11-03 + (sak + 17-093347TVI-OTIR/05) under navnet rapport av 1. juni 2017 av + Alexander Kind Petersen. De ligner, men jeg har ikke sammenlignet + dokumentene ord for ord for å kontrollere om de er identiske.

+ +

Det finnes flere kilder som kan brukes til å finne filmer som er + allemannseie (public domain) eller har bruksvilkår som gjør det + lovlig for alle å dele dem på Internett. Jeg har det siste året + forsøkt å samle og krysskoble disse listene ved hjelp av tittel-ID i + IMDB for å forsøke å telle antall filmer i det fri. Ved å ta + utgangspunkt i slike lister (og publiserte filmer for + Internett-arkivets del), har jeg så langt klart å identifisere over + 14 000 filmer, hovedsaklig spillefilmer. Noen filmer er gått tapt + ved at de eneste kjente eksemplarene er blitt ødelagt. Jeg har ikke + forsøkt å finne ut hvilke filmer som er gått tapt, ut over å se + hvilke filmer som er tilgjengelig på filmdelings-nettsteder.

+ +

IMDB er en forkortelse for The Internet Movie Database, en + anerkjent kommersiell nettjeneste som brukes aktivt av både + filmbransjen og andre til å holde rede på hvilke spillefilmer (og + endel andre filmer) som finnes eller er under produksjon, samt + informasjon om disse filmene. Datakvaliteten er høy, med få feil og + få filmer som mangler. IMDB viser ikke informasjon om + opphavsrettslig status for filmene på infosiden for hver film, men + frivillige har lagt ut på IMDB-tjenesten lister med filmer som antas + å være verk i det fri. Disse listene er en liten del av kildene for + min telling av verk som kan lovlig deles på Internett.

+ +

De aller fleste oppføringene over verk i det fri er hentet fra IMDB + selv, basert på det faktum at alle filmer laget i USA før 1923 er + falt i det fri. Tilsvarende tidsgrense for Storbritannia er + 1912-07-01, men dette utgjør bare veldig liten del av spillefilmene + i IMDB (19 totalt). En annen stor andel kommer fra + Internett-arkivet, der jeg har identifisert filmer som har referanse + til IMDB. Internett-arkivet, som holder til i USA, har + som policy å kun + publisere filmer som det er lovlig å distribuere. Jeg har under + arbeidet kommet over flere filmer som har blitt fjernet fra + Internett-arkivet, hvilket gjør at jeg konkluderer med at folkene + som kontrollerer Internett-arkivet har et aktivt forhold til kun å + ha lovlig innhold der, selv om det i stor grad er drevet av + frivillige. Internett-arkivet har publisert 4.6 millioner + videofilmer som samtlige er tilgjengelig også med + Bittorrent-protokollen. En annen stor liste med filmer kommer fra + det kommersielle selskapet Retro Film Vault, som selger + allemannseide filmer til TV- og filmbransjen, Jeg har også benyttet + meg av lister over filmer som hevdes å være allemannseie, det være + seg Public Domain Review, Public Domain Torrents og Public Domain + Movies (to ulike tjenester med samme navn, på .net og .info), samt + lister over filmer med Creative Commons-lisensiering fra Wikipedia, + VODO og The Hill Productions. Jeg har gjort endel stikkontroll ved å + vurdere filmer som kun omtales på en liste. Der jeg har funnet feil + som har gjort meg i tvil om vurderingen til de som har laget listen + har jeg forkastet listen fullstendig (gjelder for eksemel en av + listene fra IMDB).

+ +

Ved å ta utgangspunkt i verk som kan antas å være lovlig delt på + Internett (fra blant annet Internett-arkivet, Public Domain + Torrents, Public Domain Reivew og Public Domain Movies), og knytte + dem til oppføringer i IMDB, så har jeg så langt klart å identifisere + over 14 000 filmer (hovedsaklig spillefilmer) det er grunn til å tro + kan lovlig distribueres av alle på Internett. Som ekstra kilder er + det brukt lister over filmer som antas/påstås å være + allemannseie. Disse kildene kommer fra miljøer som jobber for å + gjøre tilgjengelig for almennheten alle verk som er falt i det fri + eller har bruksvilkår som tillater deling.

+ +

I tillegg til de over 14 000 filmene der tittel-ID i IMDB er + identifisert, har jeg funnet mer enn 26 000 oppføringer der jeg ennå + ikke har hatt kapasitet til å spore opp tittel-ID i IMDB. Jeg har + sett at noen av disse er duplikater av de IMDB-oppføringene som er + identifisert så langt, men de fleste jeg har hatt tid til å + undersøke så langt har vist seg å ikke være duplikater. Retro Film + Vault hevder å ha 44 000 filmverk i det fri i sin katalog, så det er + mulig at det reelle tallet er betydelig høyere enn de jeg har klart + å identifisere så langt. Konklusjonen en kan trekke fra dette er at + tallet 14 000 er nedre grense for hvor mange filmer i IMDB som kan + lovlig deles på Internett. I + følge statistikk fra IMDB + er det 4.6 millioner titler registrert, hvorav 3 millioner er + TV-serieepisoder.

+ +

Hvis en fordeler på år alle tittel-IDene i IMDB som hevdes å deles + lovlig på Internett, får en følgende histogram:

+ +

histogram over frie filmer per år

+ +

En kan i histogrammet se at effekten av manglende registrering + eller fornying av registrering er at mange filmer gitt ut i USA før + 1978 er allemannseie i dag. I tillegg kan en se at det finnes flere + filmer gitt ut de siste årene med bruksvilkår som tillater deling, + muligens på grunn av fremveksten + av Creative + Commons-bevegelsen.

+ +

IMDB har lagt ut en + maskinlesbare liste over alle registreringene i sin database, og + ved hjelp av denne har jeg oppsummert antall titler per år i + kategoriene «movies» og «short», som er det jeg fokuserer på i min + telling. Inn i oversikten er det tegnet hvor stor prosentandel + antallet filmer som hevdes å kunne deles lovlig på Internett utgjør + av IMDB-totalen. Ut fra oversikten får man en ide om hvor stor andel + av totalen som kan mangle i min telling, for eksempel ved å merke + seg at få prosenter av filmene utgitt tidlig på 1900-tallet er med i + min telling.

+ +

histogram over filmer og frie filmer per år

+ +

For maskinell analyse av katalogene laget jeg et lite program som + kobler seg til bittorrent-katalogene som brukes av ulike Popcorn + Time-varianter og laster ned komplett liste over filmer i + katalogene. Dette bekrefter at det er mulig å hente ut komplett + liste med alle filmtitler som er tilgjengelig i katalogene, i strid + med påstanden i dokumentene 09,13, 09,19 og 09,20. Jeg har sett på + fire bittorrent-kataloger. Den ene ble brukt av klienten + tilgjengelig fra www.popcorntime.sh 2017-12-18 og er navngitt «sh» i + dette dokumentet. Den andre brukes i følge dokument 09,12 av + klienten tilgjengelig fra popcorntime.ag og popcorntime.sh på ukjent + tidspunkt og er navngitt «yts» i dette dokumentet. Den tredje ble + brukt av websidene tilgjengelig fra popcorntime-online.tv 2017-12-18 + og er navngitt «apidomain» i dette dokumentet. Den fjerde ble brukt + av klienten tilgjengelig fra popcorn-time.to i følge dokument 09,12 + på ukjent tidspunkt, og er navngitt «ukrfnlge» i dette + dokumentet. Hvilke kataloger som brukes av ulike Popcorn + Time-klienter endrer seg over tid, da Popcorn Time-klientene i + praksis er nettlesere som viser frem ulike nettsider og disse + nettsidene bytter datakilder når nettsidens eier ønsker det.

+ +

Metoden som Økokrim legger til grunn, skriver i sitt punkt fire at + skjønn er en egnet metode for å finne ut om en film kan lovlig deles + på Internett eller ikke, og sier at det ble «vurdert hvorvidt det + var rimelig å forvente om at verket var vernet av copyright». For + det første er det ikke nok å slå fast om en film er «vernet av + copyright» for å vite om det er lovlig å dele den på Internett eller + ikke, da det finnes flere filmer med opphavsrettslige bruksvilkår + som tillater deling på Internett. Eksempler på dette er Creative + Commons-lisensierte filmer som Citizenfour fra 2014 og Sintel fra + 2010. I tillegg til slike finnes det flere filmer som nå er + allemannseie (public domain) på grunn av manglende registrering + eller fornying av registrering selv om både regisør, + produksjonsselskap og distributør ønsker seg vern. Eksempler på + dette er Plan 9 from Outer Space fra 1959 og Night of the Living + Dead fra 1968. Alle filmer fra USA som var allemannseie før + 1989-03-01 forble i det fri da Bern-konvensjonen, som tok effekt i + USA på det tidspunktet, ikke ble gitt tilbakevirkende + kraft. Historien + om sangen «Happy birthday», der betaling for bruk har vært krevd + inn i flere tiår selv om sangen ikke var vernet av åndsverksloven, + forteller oss at hvert enkelt verk må vurderes nøye og i detalj før + en kan slå fast om verket er allemannseie eller ikke, det holder + ikke å tro på selverklærte rettighetshavere. Flere eksempel på verk + i det fri som feilklassifiseres som vernet er fra dokument 09,18, + som lister opp søkeresultater for pklienten omtalt som + popcorntime.sh og i følge notatet kun inneholder en film (The Circus + fra 1928) som under tvil kan antas å være allemannseie.

+ +

Ved rask gjennomlesning av dokument 09,18, som inneholder + skjermbilder fra bruk av en Popcorn Time-variant, fant jeg omtalt + både filmen «The Brain That Wouldn't Die» fra 1962 som + er tilgjengelig + fra Internett-arkivet og + som i + følge Wikipedia er allemannseie i USA da den ble gitt ut i 1962 + uten «copyright»-merking, og filmen «God’s Little Acre» fra + 1958 som + er lagt ut på Wikipedia, der det fortelles at sort/hvit-utgaven + er allemannseie. Det fremgår ikke fra dokument 09,18 om filmen + omtalt der er sort/hvit-utgaven. Av kapasitetsårsaker og på grunn av + at filmoversikten i dokument 09,18 ikke er maskinlesbart har jeg + ikke forsøkt å sjekke alle filmene som listes opp der om mot liste + med filmer som er antatt lovlig kan distribueres på Internet.

+ +

Ved maskinell gjennomgang av listen med IMDB-referanser under + regnearkfanen «Unique titles» i dokument 09.14, fant jeg i tillegg + filmen «She Wore a Yellow Ribbon» fra 1949) som nok også er + feilklassifisert. Filmen «She Wore a Yellow Ribbon» er tilgjengelig + fra Internett-arkivet og markert som allemannseie der. Det virker + dermed å være minst fire ganger så mange filmer som kan lovlig deles + på Internett enn det som er lagt til grunn når en påstår at minst + 99% av innholdet er ulovlig. Jeg ser ikke bort fra at nærmere + undersøkelser kan avdekke flere. Poenget er uansett ikke hvor mange + filmer i listen som er lovlig å dele på Internet, men at metodens + punkt med vurdering av «rimelig å forvente om at verket var vernet + av copyright» gjør metoden upålitelig.

+ +

Den omtalte målemetoden velger ut tilfeldige søketermer fra + ordlisten Dale-Chall. Den ordlisten inneholder 3000 enkle engelske + ord som fjerdeklassinger i USA er forventet å forstå. Det fremgår + ikke hvorfor akkurat denne ordlisten er valgt, og det er uklart for + meg om den er egnet til å få et representativt utvalg av + filmer. Mange av ordene gir tomt søkeresultat. Ved å simulerte + tilsvarende søk ser jeg store avvik fra fordelingen i katalogen for + enkeltmålinger. Dette antyder at enkeltmålinger av 100 filmer slik + målemetoden beskriver er gjort, ikke er velegnet til å finne andel + ulovlig innhold i bittorrent-katalogene.

+ +

En kan motvirke dette store avviket for enkeltmålinger ved å gjøre + mange søk og slå sammen resultatet. Jeg har testet ved å gjennomføre + 100 enkeltmålinger (dvs. måling av (100x100=) 10 000 tilfeldig + valgte filmer) som gir mindre, men fortsatt betydelig avvik, i + forhold til telling av filmer pr år i hele katalogen.

+ +

Målemetoden henter ut de fem øverste i + søkeresultatet. Søkeresultatene er sortert på antall + bittorrent-klienter registrert som delere i katalogene, hvilket kan + gi en slagside mot hvilke filmer som er populære blant de som bruker + bittorrent-katalogene, uten at det forteller noe om hvilket innhold + som er tilgjengelig eller hvilket innhold som deles med Popcorn + Time-klienter. Jeg har forsøkt å måle hvor stor en slik slagside + eventuelt er ved å sammenligne fordelingen hvis en tar de 5 nederste + i søkeresultatet i stedet. Avviket for disse to metodene for flere + av katalogene er godt synlig på histogramet. Her er histogram over + filmer funnet i den komplette katalogen (grønn strek), og filmer + funnet ved søk etter ord i Dale-Chall. Grafer merket «top» henter + fra de 5 første i søkeresultatet, mens de merket «bottom» henter fra + de 5 siste. En kan her se at resultatene påvirkes betydelig av + hvorvidt en ser på de første eller de siste filmene i et + søketreff.

+ +

+ + +
+ + +
+ + +
+ + +

-

My current home stereo is a patchwork of various pieces I got on -flee markeds over the years. It is amazing what kind of equipment -show up there. I've been wondering for a while if it was possible to -measure how well this equipment is working together, and decided to -see how far I could get using free software. After trawling the web I -came across an article from DIY Audio and Video on -Speaker -Testing and Analysis describing how to test speakers, and it listing -several software options, among them -AUDio MEasurement -System (AUDMES). It is the only free software system I could find -focusing on measuring speakers and audio frequency response. In the -process I also found an interesting article from NOVO on -Understanding -Speaker Specifications and Frequency Response and an article from -ecoustics on -Understanding -Speaker Frequency Response, with a lot of information on what to -look for and how to interpret the graphs. Armed with this knowledge, -I set out to measure the state of my speakers.

+

Det er viktig å merke seg at de omtalte bittorrent-katalogene ikke + er laget for bruk med Popcorn Time, men for ulike miljøer av + bittorrent-brukere. Eksempelvis tilhører katalogen YTS, som brukes + av klientet som ble lastes ned fra popcorntime.sh, et selvstendig + fildelings-relatert nettsted YTS.AG med et separat + brukermiljø. Målemetoden foreslått av Økokrim måler dermed ikke + (u)lovligheten rundt bruken av Popcorn Time, men (u)lovligheten til + innholdet i disse katalogene.

-

The first hurdle was that AUDMES hadn't seen a commit for 10 years -and did not build with current compilers and libraries. I got in -touch with its author, who no longer was spending time on the program -but gave me write access to the subversion repository on Sourceforge. -The end result is that now the code build on Linux and is capable of -saving and loading the collected frequency response data in CSV -format. The application is quite nice and flexible, and I was able to -select the input and output audio interfaces independently. This made -it possible to use a USB mixer as the input source, while sending -output via my laptop headphone connection. I lacked the hardware and -cabling to figure out a different way to get independent cabling to -speakers and microphone.

+
-

Using this setup I could see how a large range of high frequencies -apparently were not making it out of my speakers. The picture show -the frequency response measurement of one of the speakers. Note the -frequency lines seem to be slightly misaligned, compared to the CSV -output from the program. I can not hear several of these are high -frequencies, according to measurement from -Free Hearing Test -Software, an freeware system to measure your hearing (still -looking for a free software alternative), so I do not know if they are -coming out out the speakers. I thus do not quite know how to figure -out if the missing frequencies is a problem with the microphone, the -amplifier or the speakers, but I managed to rule out the audio card in my -PC by measuring my Bose noise canceling headset using its own -microphone. This setup was able to see the high frequency tones, so -the problem with my stereo had to be in the amplifier or speakers.

+

Metoden fra Økokrims dokument 09,13 i straffesaken + om DNS-beslag.

-

Anyway, to try to role out one factor I ended up picking up a new -set of speakers at a flee marked, and these work a lot better than the -old speakers, so I guess the microphone and amplifier is OK. If you -need to measure your own speakers, check out AUDMES. If more people -get involved, perhaps the project could become good enough to include -in Debian? And if you know of some other free software to measure -speakers and amplifier performance, please let me know. I am aware of -the freeware option REW, -but I want something that can be developed also when the vendor -looses interest.

+
-

As usual, if you use Bitcoin and want to show your support of my -activities, please send Bitcoin donations to my address -15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.

+

1. Evaluation of (il)legality

+ +

1.1. Methodology + +

Due to its technical configuration, Popcorn Time applications don't +allow to make a full list of all titles made available. In order to +evaluate the level of illegal operation of PCT, the following +methodology was applied:

+ +
    + +
  1. A random selection of 50 keywords, greater than 3 letters, was + made from the Dale-Chall list that contains 3000 simple English + words1. The selection was made by using a Random Number + Generator2.
  2. + +
  3. For each keyword, starting with the first randomly selected + keyword, a search query was conducted in the movie section of the + respective Popcorn Time application. For each keyword, the first + five results were added to the title list until the number of 100 + unique titles was reached (duplicates were removed).
  4. + +
  5. For one fork, .CH, insufficient titles were generated via this + approach to reach 100 titles. This was solved by adding any + additional query results above five for each of the 50 keywords. + Since this still was not enough, another 42 random keywords were + selected to finally reach 100 titles.
  6. + +
  7. It was verified whether or not there is a reasonable expectation + that the work is copyrighted by checking if they are available on + IMDb, also verifying the director, the year when the title was + released, the release date for a certain market, the production + company/ies of the title and the distribution company/ies.
  8. + +
+ +

1.2. Results

+ +

Between 6 and 9 June 2016, four forks of Popcorn Time were +investigated: popcorn-time.to, popcorntime.ag, popcorntime.sh and +popcorntime.ch. An excel sheet with the results is included in +Appendix 1. Screenshots were secured in separate Appendixes for each +respective fork, see Appendix 2-5.

+ +

For each fork, out of 100, de-duplicated titles it was possible to +retrieve data according to the parameters set out above that indicate +that the title is commercially available. Per fork, there was 1 title +that presumably falls within the public domain, i.e. the 1928 movie +"The Circus" by and with Charles Chaplin.

+ +

Based on the above it is reasonable to assume that 99% of the movie +content of each fork is copyright protected and is made available +illegally.

+ +

This exercise was not repeated for TV series, but considering that +besides production companies and distribution companies also +broadcasters may have relevant rights, it is reasonable to assume that +at least a similar level of infringement will be established.

+ +

Based on the above it is reasonable to assume that 99% of all the +content of each fork is copyright protected and are made available +illegally.

+ +
+ +

Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til +det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner +til min adresse +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. +Merk, betaling med bitcoin er ikke anonymt. :)

@@ -100,58 +459,33 @@ activities, please send Bitcoin donations to my address
- -
21st October 2018
-

Bittorrent is as far as I know, currently the most efficient way to -distribute content on the Internet. It is used all by all sorts of -content providers, from national TV stations like -NRK, Linux distributors like -Debian and -Ubuntu, and of course the -Internet archive. - -

Almost a month ago -a new -package adding Bittorrent support to VLC became available in -Debian testing and unstable. To test it, simply install it like -this:

- -

-apt install vlc-plugin-bittorrent
-

- -

Since the plugin was made available for the first time in Debian, -several improvements have been made to it. In version 2.2-4, now -available in both testing and unstable, a desktop file is provided to -teach browsers to start VLC when the user click on torrent files or -magnet links. The last part is thanks to me finally understanding -what the strange x-scheme-handler style MIME types in desktop files -are used for. By adding x-scheme-handler/magnet to the MimeType entry -in the desktop file, at least the browsers Firefox and Chromium will -suggest to start VLC when selecting a magnet URI on a web page. The -end result is that now, with the plugin installed in Buster and Sid, -one can visit any -Internet -Archive page with movies using a web browser and click on the -torrent link to start streaming the movie.

- -

Note, there is still some misfeatures in the plugin. One is the -fact that it will hang and -block VLC -from exiting until the torrent streaming starts. Another is the -fact that it -will pick -and play a random file in a multi file torrent. This is not -always the video file you want. Combined with the first it can be a -bit hard to get the video streaming going. But when it work, it seem -to do a good job.

- -

For the Debian packaging, I would love to find a good way to test -if the plugin work with VLC using autopkgtest. I tried, but do not -know enough of the inner workings of VLC to get it working. For now -the autopkgtest script is only checking if the .so file was -successfully loaded by VLC. If you have any suggestions, please -submit a patch to the Debian bug tracking system.

+ +
15th January 2019
+

The layered video playout server created by Sveriges Television, +CasparCG Server, entered Debian +today. This completes many months of work to get the source ready to +go into Debian. The first upload to the Debian NEW queue happened a +month ago, but the work upstream to prepare it for Debian started more +than two and a half month ago. So far +the +casparcg-server package is only available for amd64, but I hope +this can be improved. The package is in contrib because it depend on +the non-free fdk-aac +library. The Debian package lack support for streaming web pages +because Debian is missing CEF, Chromium Embedded Framework. CEF is +wanted by several packages in Debian. But because the Chromium source +is not available as a build +dependency, it is not yet possible to upload CEF to Debian. I +hope this will change in the future.

+ +

The reason I got involved is that +the Norwegian open channel +Frikanalen is starting to use CasparCG for our HD playout, and I +would like to have all the free software tools we use to run the TV +channel available as packages from the Debian project. The last +remaining piece in the puzzle is Open Broadcast Encoder, but it depend +on quite a lot of patched libraries which would have to be included in +Debian first.

As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -160,7 +494,7 @@ activities, please send Bitcoin donations to my address

@@ -168,71 +502,50 @@ activities, please send Bitcoin donations to my address
- -
18th October 2018
-

This morning, the new release of the -Nikita -Noark 5 core project was -announced -on the project mailing list. The free software solution is an -implementation of the Norwegian archive standard Noark 5 used by -government offices in Norway. These were the changes in version 0.2 -since version 0.1.1 (from NEWS.md): - -

    -
  • Fix typos in REL names
  • -
  • Tidy up error message reporting
  • -
  • Fix issue where we used Integer.valueOf(), not Integer.getInteger()
  • -
  • Change some String handling to StringBuffer
  • -
  • Fix error reporting
  • -
  • Code tidy-up
  • -
  • Fix issue using static non-synchronized SimpleDateFormat to avoid - race conditions
  • -
  • Fix problem where deserialisers were treating integers as strings
  • -
  • Update methods to make them null-safe
  • -
  • Fix many issues reported by coverity
  • -
  • Improve equals(), compareTo() and hash() in domain model
  • -
  • Improvements to the domain model for metadata classes
  • -
  • Fix CORS issues when downloading document
  • -
  • Implementation of case-handling with registryEntry and document upload
  • -
  • Better support in Javascript for OPTIONS
  • -
  • Adding concept description of mail integration
  • -
  • Improve setting of default values for GET on ny-journalpost
  • -
  • Better handling of required values during deserialisation
  • -
  • Changed tilknyttetDato (M620) from date to dateTime
  • -
  • Corrected some opprettetDato (M600) (de)serialisation errors.
  • -
  • Improve parse error reporting.
  • -
  • Started on OData search and filtering.
  • -
  • Added Contributor Covenant Code of Conduct to project.
  • -
  • Moved repository and project from Github to Gitlab.
  • -
  • Restructured repository, moved code into src/ and web/.
  • -
  • Updated code to use Spring Boot version 2.
  • -
  • Added support for OAuth2 authentication.
  • -
  • Fixed several bugs discovered by Coverity.
  • -
  • Corrected handling of date/datetime fields.
  • -
  • Improved error reporting when rejecting during deserializatoin.
  • -
  • Adjusted default values provided for ny-arkivdel, ny-mappe, - ny-saksmappe, ny-journalpost and ny-dokumentbeskrivelse.
  • -
  • Several fixes for korrespondansepart*.
  • -
  • Updated web GUI: -
      -
    • Now handle both file upload and download.
    • -
    • Uses new OAuth2 authentication for login.
    • -
    • Forms now fetches default values from API using GET.
    • -
    • Added RFC 822 (email), TIFF and JPEG to list of possible file formats.
    • -
  • -
- -

The changes and improvements are extensive. Running diffstat on -the changes between git tab 0.1.1 and 0.2 show 1098 files changed, -108666 insertions(+), 54066 deletions(-).

- -

If free and open standardized archiving API sound interesting to -you, please contact us on IRC -(#nikita on -irc.freenode.net) or email -(nikita-noark -mailing list).

+ +
15th December 2018
+

A fun way to learn how to program +Python is to follow the +instructions in the book +"Learn to program +with Minecraft", which introduces programming in Python to people +who like to play with Minecraft. The book uses a Python library to +talk to a TCP/IP socket with an API accepting build instructions and +providing information about the current players in a Minecraft world. +The TCP/IP API was first created for the Minecraft implementation for +Raspberry Pi, and has since been ported to some server versions of +Minecraft. The book contain recipes for those using Windows, MacOSX +and Raspian. But a little known fact is that you can follow the same +recipes using the free software construction game +Minetest.

+ +

There is a +Minetest module implementing the same API, making it possible to +use the Python programs coded to talk to Minecraft with Minetest too. +I +uploaded +this module to Debian two weeks ago, and as soon as it clears the +FTP masters NEW queue, learning to program Python with Minetest on +Debian will be a simple 'apt install' away. The Debian package is +maintained as part of the Debian Games team, and +the +packaging rules are currently located under 'unfinished' on +Salsa.

+ +

You will most likely need to install several of the Minetest +modules in Debian for the examples included with the library to work +well, as there are several blocks used by the example scripts that are +provided via modules in Minetest. Without the required blocks, a +simple stone block is used instead. My initial testing with a analog +clock did not get gold arms as instructed in the python library, but +instead used stone arms.

+ +

I tried to find a way to add the API to the desktop version of +Minecraft, but were unable to find any working recipes. The +recipes +I found are only +working with a standalone Minecraft server setup. Are there any +options to use with the normal desktop version?

As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -241,7 +554,7 @@ activities, please send Bitcoin donations to my address

@@ -249,102 +562,30 @@ activities, please send Bitcoin donations to my address
- -
8th October 2018
-

I have earlier covered the basics of trusted timestamping using the -'openssl ts' client. See blog post for -2014, -2016 -and -2017 -for those stories. But some times I want to integrate the timestamping -in other code, and recently I needed to integrate it into Python. -After searching a bit, I found -the -rfc3161 library which seemed like a good fit, but I soon -discovered it only worked for python version 2, and I needed something -that work with python version 3. Luckily I next came across -the rfc3161ng library, -a fork of the original rfc3161 library. Not only is it working with -python 3, it have fixed a few of the bugs in the original library, and -it has an active maintainer. I decided to wrap it up and make it -available in -Debian, and a few days ago it entered Debian unstable and testing.

- -

Using the library is fairly straight forward. The only slightly -problematic step is to fetch the required certificates to verify the -timestamp. For some services it is straight forward, while for others -I have not yet figured out how to do it. Here is a small standalone -code example based on of the integration tests in the library code:

- -
-#!/usr/bin/python3
-
-"""
-
-Python 3 script demonstrating how to use the rfc3161ng module to
-get trusted timestamps.
-
-The license of this code is the same as the license of the rfc3161ng
-library, ie MIT/BSD.
-
-"""
-
-import os
-import pyasn1.codec.der
-import rfc3161ng
-import subprocess
-import tempfile
-import urllib.request
-
-def store(f, data):
-    f.write(data)
-    f.flush()
-    f.seek(0)
-
-def fetch(url, f=None):
-    response = urllib.request.urlopen(url)
-    data = response.read()
-    if f:
-        store(f, data)
-    return data
-
-def main():
-    with tempfile.NamedTemporaryFile() as cert_f,\
-    	 tempfile.NamedTemporaryFile() as ca_f,\
-    	 tempfile.NamedTemporaryFile() as msg_f,\
-    	 tempfile.NamedTemporaryFile() as tsr_f:
-
-        # First fetch certificates used by service
-        certificate_data = fetch('https://freetsa.org/files/tsa.crt', cert_f)
-        ca_data_data = fetch('https://freetsa.org/files/cacert.pem', ca_f)
-
-        # Then timestamp the message
-        timestamper = \
-            rfc3161ng.RemoteTimestamper('http://freetsa.org/tsr',
-                                        certificate=certificate_data)
-        data = b"Python forever!\n"
-        tsr = timestamper(data=data, return_tsr=True)
-
-        # Finally, convert message and response to something 'openssl ts' can verify
-        store(msg_f, data)
-        store(tsr_f, pyasn1.codec.der.encoder.encode(tsr))
-        args = ["openssl", "ts", "-verify",
-                "-data", msg_f.name,
-	        "-in", tsr_f.name,
-		"-CAfile", ca_f.name,
-                "-untrusted", cert_f.name]
-        subprocess.check_call(args)
-
-if '__main__' == __name__:
-   main()
-
- -

The code fetches the required certificates, store them as temporary -files, timestamp a simple message, store the message and timestamp to -disk and ask 'openssl ts' to verify the timestamp. A timestamp is -around 1.5 kiB in size, and should be fairly easy to store for future -use.

+ +
12th December 2018
+

A few hours ago, a new and improved version (2.4) of +the VLC +bittorrent plugin was uploaded to Debian. This new version +include a complete rewrite of the bittorrent related code, which seem +to make the plugin non-blocking. This mean you can actually exit VLC +even when the plugin seem to be unable to get the bittorrent streaming +started. The new version also include support for filtering playlist +by file extension using command line options, if you want to avoid +processing audio, video or images. The package is currently in Debian +unstable, but should be available in Debian testing in two days. To +test it, simply install it like this:

+ +

+apt install vlc-plugin-bittorrent
+

+ +

After it is installed, you can try to use it to play a file +downloaded live via bittorrent like this: + +

+vlc https://archive.org/download/Glass_201703/Glass_201703_archive.torrent
+

As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -353,7 +594,7 @@ activities, please send Bitcoin donations to my address

- Tags: english, sikkerhet. + Tags: english, verkidetfri, video.
@@ -361,68 +602,55 @@ activities, please send Bitcoin donations to my address
- -
4th October 2018
-

A few days, I rescued a Windows victim over to Debian. To try to -rescue the remains, I helped set up automatic sync with Google Drive. -I did not find any sensible Debian package handling this -automatically, so I rebuild the grive2 source from -the Ubuntu UPD8 PPA to do the -task and added a autostart desktop entry and a small shell script to -run in the background while the user is logged in to do the sync. -Here is a sketch of the setup for future reference.

- -

I first created ~/googledrive, entered the directory and -ran 'grive -a' to authenticate the machine/user. Next, I -created a autostart hook in ~/.config/autostart/grive.desktop -to start the sync when the user log in:

- -

-[Desktop Entry]
-Name=Google drive autosync
-Type=Application
-Exec=/home/user/bin/grive-sync
-

- -

Finally, I wrote the ~/bin/grive-sync script to sync -~/googledrive/ with the files in Google Drive.

- -

-#!/bin/sh
-set -e
-cd ~/
-cleanup() {
-    if [ "$syncpid" ] ; then
-        kill $syncpid
-    fi
-}
-trap cleanup EXIT INT QUIT
-/usr/lib/grive/grive-sync.sh listen googledrive 2>&1 | sed "s%^%$0:%" &
-syncpdi=$!
-while true; do
-    if ! xhost >/dev/null 2>&1 ; then
-        echo "no DISPLAY, exiting as the user probably logged out"
-        exit 1
-    fi
-    if [ ! -e /run/user/1000/grive-sync.sh_googledrive ] ; then
-        /usr/lib/grive/grive-sync.sh sync googledrive
-    fi
-    sleep 300
-done 2>&1 | sed "s%^%$0:%"
-

- -

Feel free to use the setup if you want. It can be assumed to be -GNU GPL v2 licensed (or any later version, at your leisure), but I -doubt this code is possible to claim copyright on.

- -

As usual, if you use Bitcoin and want to show your support of my -activities, please send Bitcoin donations to my address -15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.

+ +
11th December 2018
+

FNs +menneskerettighetserklæring artikkel 13 første punkt lyder som +følger:

+ +

+Enhver har rett til å bevege seg fritt og til fritt å velge +oppholdssted innenfor en stats grenser. +

+ +

Det er altsÃ¥ en menneskerett Ã¥ kunne bevege seg fritt i landet. +For Ã¥ bevege seg fritt i landet, sÃ¥ mÃ¥ en kunne bevege seg uten Ã¥ bli +sporet. Det vil i dagens samfunn innebære Ã¥ bevege seg uten Ã¥ legge +igjen digitale spor og uten Ã¥ være radiomerket. Hvis en vet at ens +bevegelser, hvor en befinner seg nÃ¥r, og hvem som befinner seg i +nærheten, blir samlet inn og gjort tilgjengelig for fremmede, det være +seg myndighetene eller private organisasjoner, sÃ¥ kan en ikke lenger +bevege seg fritt. Dette gjør at det er en forutsetning for Ã¥ ha glede +av retten til Ã¥ bevege seg fritt i landet at en motstÃ¥r fristelsen til +Ã¥ legge igjen digitale spor nÃ¥r en betaler for seg. Rettigheter som +ikke blir brukt, blir fjernet. Den eneste mÃ¥ten i dag Ã¥ unngÃ¥ Ã¥ legge +igjen digitale spor nÃ¥r en betaler for seg, er Ã¥ betale med kontanter, +samt takke nei til Ã¥ legge igjen navn og adresse (slik f.eks. Elkjøp +ber om — jeg sier de kan legge inn «anonym anonym» nÃ¥r +datasystemet deres trenger et navn). Personlig anbefaler jeg Ã¥ +konsekvent bruke kontant betaling nÃ¥r man beveger seg rundt, for Ã¥ +bidra til forsvaret av menneskerettighetene i Norge. Kanskje noe ogsÃ¥ +for deg? Merk at det ikke er tilstrekkelig for Ã¥ unngÃ¥ sporing Ã¥ +betale med kontanter, men det er et lite steg i riktig retning.

+ +

Det er flere andre argumenter i tillegg til +menneskerettighetsargumentet for å bruke kontanter. I går hadde +Dagbladet en utmerket kommentar av sin journalist John Olav Egeland om +hvilket +kontantløst +diktatur som venter oss hvis mange nok slutter å insistere på å +betale med kontanter. Jeg anbefaler deg å lese den.

+ +

Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til +det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner +til min adresse +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. +Merk, betaling med bitcoin er ikke anonymt. :)

- Tags: debian, english. + Tags: norsk, personvern.
@@ -430,152 +658,36 @@ activities, please send Bitcoin donations to my address
- -
29th September 2018
-

It would come as no surprise to anyone that I am interested in -bitcoins and virtual currencies. I've been keeping an eye on virtual -currencies for many years, and it is part of the reason a few months -ago, I started writing a python library for collecting currency -exchange rates and trade on virtual currency exchanges. I decided to -name the end result valutakrambod, which perhaps can be translated to -small currency shop.

- -

The library uses the tornado python library to handle HTTP and -websocket connections, and provide a asynchronous system for -connecting to and tracking several services. The code is available -from -github.

- -

There are two example clients of the library. One is very simple and -list every updated buy/sell price received from the various services. -This code is started by running bin/btc-rates and call the client code -in valutakrambod/client.py. The simple client look like this:

- -

-import functools
-import tornado.ioloop
-import valutakrambod
-class SimpleClient(object):
-    def __init__(self):
-        self.services = []
-        self.streams = []
-        pass
-    def newdata(self, service, pair, changed):
-        print("%-15s %s-%s: %8.3f %8.3f" % (
-            service.servicename(),
-            pair[0],
-            pair[1],
-            service.rates[pair]['ask'],
-            service.rates[pair]['bid'])
-        )
-    async def refresh(self, service):
-        await service.fetchRates(service.wantedpairs)
-    def run(self):
-        self.ioloop = tornado.ioloop.IOLoop.current()
-        self.services = valutakrambod.service.knownServices()
-        for e in self.services:
-            service = e()
-            service.subscribe(self.newdata)
-            stream = service.websocket()
-            if stream:
-                self.streams.append(stream)
-            else:
-                # Fetch information from non-streaming services immediately
-                self.ioloop.call_later(len(self.services),
-                                       functools.partial(self.refresh, service))
-                # as well as regularly
-                service.periodicUpdate(60)
-        for stream in self.streams:
-            stream.connect()
-        try:
-            self.ioloop.start()
-        except KeyboardInterrupt:
-            print("Interrupted by keyboard, closing all connections.")
-            pass
-        for stream in self.streams:
-            stream.close()
-

- -

The library client loops over all known "public" services, -initialises it, subscribes to any updates from the service, checks and -activates websocket streaming if the service provide it, and if no -streaming is supported, fetches information from the service and sets -up a periodic update every 60 seconds. The output from this client -can look like this:

- -

-Bl3p            BTC-EUR: 5687.110 5653.690
-Bl3p            BTC-EUR: 5687.110 5653.690
-Bl3p            BTC-EUR: 5687.110 5653.690
-Hitbtc          BTC-USD: 6594.560 6593.690
-Hitbtc          BTC-USD: 6594.560 6593.690
-Bl3p            BTC-EUR: 5687.110 5653.690
-Hitbtc          BTC-USD: 6594.570 6593.690
-Bitstamp        EUR-USD:    1.159    1.154
-Hitbtc          BTC-USD: 6594.570 6593.690
-Hitbtc          BTC-USD: 6594.580 6593.690
-Hitbtc          BTC-USD: 6594.580 6593.690
-Hitbtc          BTC-USD: 6594.580 6593.690
-Bl3p            BTC-EUR: 5687.110 5653.690
-Paymium         BTC-EUR: 5680.000 5620.240
-

- -

The exchange order book is tracked in addition to the best buy/sell -price, for those that need to know the details.

- -

The other example client is focusing on providing a curses view -with updated buy/sell prices as soon as they are received from the -services. This code is located in bin/btc-rates-curses and activated -by using the '-c' argument. Without the argument the "curses" output -is printed without using curses, which is useful for debugging. The -curses view look like this:

- -

-           Name Pair   Bid         Ask         Spr    Ftcd    Age
- BitcoinsNorway BTCEUR   5591.8400   5711.0800   2.1%   16    nan     60
-       Bitfinex BTCEUR   5671.0000   5671.2000   0.0%   16     22     59
-        Bitmynt BTCEUR   5580.8000   5807.5200   3.9%   16     41     60
-         Bitpay BTCEUR   5663.2700         nan   nan%   15    nan     60
-       Bitstamp BTCEUR   5664.8400   5676.5300   0.2%    0      1      1
-           Bl3p BTCEUR   5653.6900   5684.9400   0.5%    0    nan     19
-       Coinbase BTCEUR   5600.8200   5714.9000   2.0%   15    nan    nan
-         Kraken BTCEUR   5670.1000   5670.2000   0.0%   14     17     60
-        Paymium BTCEUR   5620.0600   5680.0000   1.1%    1   7515    nan
- BitcoinsNorway BTCNOK  52898.9700  54034.6100   2.1%   16    nan     60
-        Bitmynt BTCNOK  52960.3200  54031.1900   2.0%   16     41     60
-         Bitpay BTCNOK  53477.7833         nan   nan%   16    nan     60
-       Coinbase BTCNOK  52990.3500  54063.0600   2.0%   15    nan    nan
-        MiraiEx BTCNOK  52856.5300  54100.6000   2.3%   16    nan    nan
- BitcoinsNorway BTCUSD   6495.5300   6631.5400   2.1%   16    nan     60
-       Bitfinex BTCUSD   6590.6000   6590.7000   0.0%   16     23     57
-         Bitpay BTCUSD   6564.1300         nan   nan%   15    nan     60
-       Bitstamp BTCUSD   6561.1400   6565.6200   0.1%    0      2      1
-       Coinbase BTCUSD   6504.0600   6635.9700   2.0%   14    nan    117
-         Gemini BTCUSD   6567.1300   6573.0700   0.1%   16     89    nan
-         Hitbtc+BTCUSD   6592.6200   6594.2100   0.0%    0      0      0
-         Kraken BTCUSD   6565.2000   6570.9000   0.1%   15     17     58
-  Exchangerates EURNOK      9.4665      9.4665   0.0%   16 107789    nan
-     Norgesbank EURNOK      9.4665      9.4665   0.0%   16 107789    nan
-       Bitstamp EURUSD      1.1537      1.1593   0.5%    4      5      1
-  Exchangerates EURUSD      1.1576      1.1576   0.0%   16 107789    nan
- BitcoinsNorway LTCEUR      1.0000     49.0000  98.0%   16    nan    nan
- BitcoinsNorway LTCNOK    492.4800    503.7500   2.2%   16    nan     60
- BitcoinsNorway LTCUSD      1.0221     49.0000  97.9%   15    nan    nan
-     Norgesbank USDNOK      8.1777      8.1777   0.0%   16 107789    nan
-

- -

The code for this client is too complex for a simple blog post, so -you will have to check out the git repository to figure out how it -work. What I can tell is how the three last numbers on each line -should be interpreted. The first is how many seconds ago information -was received from the service. The second is how long ago, according -to the service, the provided information was updated. The last is an -estimate on how often the buy/sell values change.

- -

If you find this library useful, or would like to improve it, I -would love to hear from you. Note that for some of the services I've -implemented a trading API. It might be the topic of a future blog -post.

+ +
9th December 2018
+

Yesterday, I had the pleasure of watching on Frikanalen the OWASP +talk by Scott Helme titled +"What We’ve Learned From +Billions of Security Reports". I had not heard of the +Content +Security Policy standard nor its ability to "call home" when a +browser detect a policy breach (I do not follow web page design +development much these days), and found the talk very illuminating.

+ +

The mechanism allow a web site owner to use HTTP headers to tell +visitors web browser which sources (internal and external) are allowed to +be used on the web site. Thus it become possible to enforce a "only +local content" policy despite web designers urge to fetch programs +from random sites on the Internet, like the one +enabling +the attack reported by Scott Helme earlier this year.

+ +

Using CSP seem like an obvious thing for a site admin to implement +to take some control over the information leak that occur when +external sources are used to render web pages, it is a mystery more +sites are not using CSP? It is being +standardized under W3C these +days, and is supposed by most web browsers

+ +

I managed to find a +Django middleware for implementing CSP and was happy to discover +it was already in Debian. I plan to use it to add CSP support to the +Frikanalen web site soon.

As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -584,7 +696,7 @@ activities, please send Bitcoin donations to my address

- Tags: bitcoin, english. + Tags: english, standard, web.
@@ -592,38 +704,37 @@ activities, please send Bitcoin donations to my address
- -
24th September 2018
-

Back in February, I got curious to see -if -VLC now supported Bittorrent streaming. 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 standalone plugin -for VLC 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 -entered -Debian a few hours ago, and should be available in Debian/Unstable -tomorrow, and Debian/Testing in a few days.

- -

With the vlc-plugin-bittorrent package installed you should be able -to stream videos using a simple call to

- -

-vlc https://archive.org/download/TheGoat/TheGoat_archive.torrent
-

- -

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. :)

- -

I would love to get help maintaining this package. Get in touch if -you are interested.

+ +
8th November 2018
+

If you read my blog regularly, you probably know I am involved in +running and developing the Norwegian +TV channel Frikanalen. It is an open channel, allowing everyone +in Norway to publish videos on a TV channel with national coverage. +You can think of it as Youtube for national television. +In addition to distribution on RiksTV and Uninett, Frikanalen is also +available as a Kodi addon. The last few days I have updated the code +to add more features. A +new +and improved version 0.0.3 Frikanalen addon was just made +available via the Kodi repositories. This new version include a +option to browse videos by category, as well as free text search +in the video archive. It will now also show the video duration in the +video lists, which were missing earlier. A new and experimental +link to the HD video stream currently being worked on is provided, for +those that want to see what the CasparCG +output look like. The alternative is the SD video stream, generated +using MLT. CasparCG is controlled by our +mltplayout +server which instead of talking to mlt is giving PLAY instructions +to the CasparCG server when it is time to start a new program.

+ +

By now, you are probably wondering what kind of content is being +played on the channel. These days, it is filled with technical +presentations like those from NUUG, +Debconf, Makercon, and TED, +but there are also some periods with +EMPT TV and +P7.

As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -632,7 +743,7 @@ activities, please send Bitcoin donations to my address

@@ -640,26 +751,33 @@ activities, please send Bitcoin donations to my address
- -
2nd September 2018
-

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.

- -

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

- -

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. :)

+ +
1st November 2018
+

As part of my involvement in +the Nikita +archive API project, I've been importing a fairly large lump of +emails into a test instance of the archive to see how well this would +go. I picked a subset of my +notmuch email database, all public emails sent to me via +@lists.debian.org, giving me a set of around 216 000 emails to import. +In the process, I had a look at the various attachments included in +these emails, to figure out what to do with attachments, and noticed +that one of the most common attachment formats do not have +an +official MIME type registered with IANA/IETF. The output from +diff, ie the input for patch, is on the top 10 list of formats +included in these emails. At the moment people seem to use either +text/x-patch or text/x-diff, but neither is officially registered. It +would be better if one official MIME type were registered and used +everywhere.

+ +

To try to get one official MIME type for these files, I've brought +up the topic on +the +media-types mailing list. If you are interested in discussion +which MIME type to use as the official for patch files, or involved in +making software using a MIME type for patches, perhaps you would like +to join the discussion?

As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -668,7 +786,7 @@ activities, please send Bitcoin donations to my address

- Tags: debian, english, kodi, video. + Tags: debian, english, standard.
@@ -676,19 +794,79 @@ activities, please send Bitcoin donations to my address
- -
30th August 2018
-

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 -Public Money, Public Code to help -them. I hope you too will do the same.

+ +
22nd October 2018
+

+ +

My current home stereo is a patchwork of various pieces I got on +flee markeds over the years. It is amazing what kind of equipment +show up there. I've been wondering for a while if it was possible to +measure how well this equipment is working together, and decided to +see how far I could get using free software. After trawling the web I +came across an article from DIY Audio and Video on +Speaker +Testing and Analysis describing how to test speakers, and it listing +several software options, among them +AUDio MEasurement +System (AUDMES). It is the only free software system I could find +focusing on measuring speakers and audio frequency response. In the +process I also found an interesting article from NOVO on +Understanding +Speaker Specifications and Frequency Response and an article from +ecoustics on +Understanding +Speaker Frequency Response, with a lot of information on what to +look for and how to interpret the graphs. Armed with this knowledge, +I set out to measure the state of my speakers.

+ +

The first hurdle was that AUDMES hadn't seen a commit for 10 years +and did not build with current compilers and libraries. I got in +touch with its author, who no longer was spending time on the program +but gave me write access to the subversion repository on Sourceforge. +The end result is that now the code build on Linux and is capable of +saving and loading the collected frequency response data in CSV +format. The application is quite nice and flexible, and I was able to +select the input and output audio interfaces independently. This made +it possible to use a USB mixer as the input source, while sending +output via my laptop headphone connection. I lacked the hardware and +cabling to figure out a different way to get independent cabling to +speakers and microphone.

+ +

Using this setup I could see how a large range of high frequencies +apparently were not making it out of my speakers. The picture show +the frequency response measurement of one of the speakers. Note the +frequency lines seem to be slightly misaligned, compared to the CSV +output from the program. I can not hear several of these are high +frequencies, according to measurement from +Free Hearing Test +Software, an freeware system to measure your hearing (still +looking for a free software alternative), so I do not know if they are +coming out out the speakers. I thus do not quite know how to figure +out if the missing frequencies is a problem with the microphone, the +amplifier or the speakers, but I managed to rule out the audio card in my +PC by measuring my Bose noise canceling headset using its own +microphone. This setup was able to see the high frequency tones, so +the problem with my stereo had to be in the amplifier or speakers.

+ +

Anyway, to try to role out one factor I ended up picking up a new +set of speakers at a flee marked, and these work a lot better than the +old speakers, so I guess the microphone and amplifier is OK. If you +need to measure your own speakers, check out AUDMES. If more people +get involved, perhaps the project could become good enough to +include in Debian? And if +you know of some other free software to measure speakers and amplifier +performance, please let me know. I am aware of the freeware option +REW, but I want something +that can be developed also when the vendor looses interest.

+ +

As usual, if you use Bitcoin and want to show your support of my +activities, please send Bitcoin donations to my address +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.

@@ -696,62 +874,58 @@ them. I hope you too will do the same.

- -
13th August 2018
-

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 -Gadgetbridge. -It provide cloudless collection and storing of data from a variety of -trackers. Its -list -of supported devices 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 -Amazfit -Bip and -Xiaomi -Band 3.

- -

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 -Garmin -FIT files containing the collected measurements. While -proprietary, FIT files apparently can be read at least by -GPSBabel and the -GpxPod 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 -Garmin Forerunner -935, 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.

- -

A final idea was to build ones own unit, perhaps by basing it on a -wearable hardware platforms like -the Flora Geo -Watch. 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.

- -

While I was working on tracking down links, I came across an -inspiring TED talk by Dave Debronkart about -being a -e-patient, and discovered the web site -Participatory -Medicine. 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.

+ +
21st October 2018
+

Bittorrent is as far as I know, currently the most efficient way to +distribute content on the Internet. It is used all by all sorts of +content providers, from national TV stations like +NRK, Linux distributors like +Debian and +Ubuntu, and of course the +Internet archive. + +

Almost a month ago +a new +package adding Bittorrent support to VLC became available in +Debian testing and unstable. To test it, simply install it like +this:

+ +

+apt install vlc-plugin-bittorrent
+

+ +

Since the plugin was made available for the first time in Debian, +several improvements have been made to it. In version 2.2-4, now +available in both testing and unstable, a desktop file is provided to +teach browsers to start VLC when the user click on torrent files or +magnet links. The last part is thanks to me finally understanding +what the strange x-scheme-handler style MIME types in desktop files +are used for. By adding x-scheme-handler/magnet to the MimeType entry +in the desktop file, at least the browsers Firefox and Chromium will +suggest to start VLC when selecting a magnet URI on a web page. The +end result is that now, with the plugin installed in Buster and Sid, +one can visit any +Internet +Archive page with movies using a web browser and click on the +torrent link to start streaming the movie.

+ +

Note, there is still some misfeatures in the plugin. One is the +fact that it will hang and +block VLC +from exiting until the torrent streaming starts. Another is the +fact that it +will pick +and play a random file in a multi file torrent. This is not +always the video file you want. Combined with the first it can be a +bit hard to get the video streaming going. But when it work, it seem +to do a good job.

+ +

For the Debian packaging, I would love to find a good way to test +if the plugin work with VLC using autopkgtest. I tried, but do not +know enough of the inner workings of VLC to get it working. For now +the autopkgtest script is only checking if the .so file was +successfully loaded by VLC. If you have any suggestions, please +submit a patch to the Debian bug tracking system.

As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -760,7 +934,7 @@ activities, please send Bitcoin donations to my address

- Tags: english. + Tags: english, verkidetfri, video.
@@ -775,6 +949,13 @@ activities, please send Bitcoin donations to my address

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