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• Call for Speakers : Share Your Voice at MatomoCamp 2025 !

  10 juillet, par Alex Carmona

  MatomoCamp is back for its 2025 edition — and the Call for Speakers is now open until July 31st !

  As proud sponsors of this unique, community-driven event, we’re excited to invite experts, enthusiasts, and curious minds to contribute to MatomoCamp 2025, the annual online gathering dedicated to web analytics, open source, digital privacy, and of course — Matomo. MatomoCamp is the premier free online conference for the Matomo Analytics community in Europe, sponsored by Matomo Analytics. Taking place online on Wednesday 26 November 2025 from 9:30 AM to 5:30 PM CET, this event brings together professionals passionate about ethical analytics, data privacy, and building a better web.

  Whether you’re a long-time user, developer, marketer, researcher, or just someone with a fresh perspective on ethical analytics, your voice belongs at MatomoCamp. Last year, we welcomed over 1,000 attendees from around the world. This year, we’re aiming even higher with an expanded programme designed to serve everyone from analytics beginners to enterprise architects.

  What is MatomoCamp ?

  MatomoCamp is a free, fully online event bringing together the global Matomo community. Across two days of talks, panels, demos, and workshops, participants explore :

  • Web analytics & measurement
  • Digital marketing & SEO
  • Open source projects & collaboration
  • Privacy-first data strategies
  • Case studies, experiments, and more

  With sessions in English, French, German, and beyond, MatomoCamp aims to make digital analytics more accessible, ethical, and transparent for everyone.

  MatomoCamp returns this November 2025 with an exciting new vision. For the first time, we’re expanding beyond purely technical content to welcome speakers from all backgrounds who can contribute insights on analytics, privacy, marketing, and the ethical web. Whether you’re a developer, marketer, analyst, or privacy advocate, we want to hear from you.

  Who can apply ?

  Anyone ! We’re looking for people from all backgrounds who want to share :

  • A practical tip or use case with Matomo
  • Insights into digital analytics, privacy, or open source
  • A success (or failure !) story from your own journey
  • A workshop or hands-on demonstration
  • A bold opinion on the future of web data
  • A behind-the-scenes look at your work or research

  You don’t have to be a professional speaker. We welcome first-time speakers, underrepresented voices, and community members who want to share something valuable — no matter how niche or broad.

  What makes a great talk ?

  There’s no one right formula. But here’s what works well :

  • Real-world experience
  • Specific, actionable insights
  • A clear structure (15–45 minutes)
  • Something you care deeply about
  • A story only you can tell

  And remember — this isn’t just about Matomo. Topics that touch on ethical analytics, open source values, or digital sovereignty are more than welcome.

  Key info

  • Where : Online (free & open to all)
  • When : November 2025 (exact dates to be announced)
  • Languages : English, French, German (other languages welcome !)
  • Deadline to apply : July 31, 2025
  • Submit your talk here

  Why does this matter ?

  At Matomo, we believe that data should empower, not exploit. MatomoCamp is more than just an event — it’s a celebration of what’s possible when communities come together to build a better digital future.

  As sponsors, we’re proud to support this independent, open source event. But more importantly, we want to amplify your voice — because every perspective shared brings us closer to a more ethical, transparent, and inclusive analytics ecosystem.

  Have a story to share ?

  Don’t overthink it. If it matters to you, it will matter to someone else. Apply to speak before July 31st and join us at MatomoCamp 2025 !

  Submit your session here !

  Let’s build the future of analytics — together.

  

• Piwik SSO options and why is it useful ?

  8 novembre 2017, par Piwik Core Team — Plugins

  Bored with typing again and again different logins and passwords for each service you have access to ? Would you like to add hundreds or thousands of users with different roles to your Piwik at once ? Would you like to save time and effort of managing your users while increasing the security in your business ? Guess what, Piwik has come up with great features to do just that.

  But what is a SSO ?

  Before introducing you to new Piwik features, let me explain what a SSO is.
  SSO is the acronym for Single Sign On. As its name suggests this authentication process allows a user to access multiple applications with one set of login credentials.

  Advantages of using a SSO are numerous :

  • improving security, for example when an employee is leaving your company, how can you check that all his credentials have been removed ?
  • reducing employees time-wasters such as having to enter logins/passwords each time.
  • providing a centralized database for administrators. They can then easily manage permissions of all employees saving them heaps of time.
  • reduces support costs related to authentication / accounts management.

  In order to provide SSO options, two Piwik plugins have been developed and are available on the marketplace :

  • SAML
  • LDAP

  SAML

  

  SAML stands for “Security Assertion Markup Language”, it is a standard in order to exchange authentication and authorization between an identity provider (OneLogin, Okta, Ping Identity, ADFS, Google, Salesforce, SharePoint…) and a service provider.
  An identity provider is an online service that authenticates users on the Internet by using security tokens.

  Are you wondering if your business or organization is using any of these providers ? We recommend to ask your operations team or sysadmin.

  At InnoCraft, we developed a plugin in order to allow SSO with SAML for Piwik. It can ensure consistent access control across the enterprise and external providers, potentially reducing support costs related to authentication and accounts management.

  The installation process is straightforward. All you need is to get the SAML premium feature from the marketplace. Once installed, you will access the SAML configuration interface through the admin where you can configure various settings :

  • SAML Status
  • Identity Provider (Entity ID, SSO endpoint info, Public x509 certificate)
  • Just-in-time provisioning and Mapping attributes
  • Access Synchronization
  • Advanced settings

  

  From there you will need to follow our detailed documentation to have it up and running :
  https://piwik.org/docs/login-saml/.
  Once finished, you will then be able to use SAML to authenticate to your Piwik account :

  

  As all premium features, SAML is eligible to a 30-day period money back guarantee, so do not hesitate to have it a try.

  LDAP

  

  LDAP stands for Lightweight Directory Access Protocol. As its names implies LDAP is a directory, hosted on a server, which organizes the data about people in your company.
  Thanks to the LDAP plugin, Piwik can be connected to your LDAP infrastructure and then use all its power in order to give each individual an access with different rights according to their needs.

  Let’s say that you have 1,000 employees within a company and they all need right now an access to the analytics reports in Piwik with different roles. This is what LDAP can do.

  Moreover if your business or organization is already using LDAP, we recommend using the LDAP connector for Piwik for better security, to stop wasting time of your users and sysadmins, and to reduce the costs related to account management.

  You understood it well. LDAP is a plugin which saves a LOT of time within an organization. Here is a preview of the settings part :

  

  LDAP has been developed by the Piwik core team and is available as a Free plugin on the marketplace.

  Try it now within the marketplace

  If you are surprised by the possibilities that Piwik is offering in terms of plugins, the good news is that many other plugins are waiting for you on the marketplace. Check out our premium marketplace which offers state-of-the-art plugins to get the most out of Piwik.

  And if you are a developer feel free to create your own plugin, a detailed documentation is available at : https://developer.piwik.org/guides/getting-started-part-1.

• Inputing a List of Files for Concatenation with Node.js Module fluent-ffmpeg

  26 juin 2018, par carpiediem

  Version information

  • fluent-ffmpeg version : 2.1.2
  • ffmpeg version : 3.4.2
  • OS : Windows 10

  Code to reproduce

  ffmpeg('C:/path/to/list.txt').mergeToFile('C:/path/to/out.mp4', 'C:/path/to/temp');

  list.txt :

  file 'C:/path/to/chunk01.ts'
  
  file 'C:/path/to/chunk02.ts'
  
  file 'C:/path/to/chunk03.ts'
  
  file 'C:/path/to/chunk04.ts'

  Note : I’ve tried both absolute and relative paths, with the same result.

  Expected results

  A video file at C:/path/to/out.mp4 that matches the 4 files in list.txt, concatenated end-to-end.

  Observed results

  An empty file at C:/path/to/out.mp4 with 0 duration and only 15kB in size. No errors were thrown.

  This is the command that I’m trying to duplicate (it works as expected, with relative paths in list.txt) :

  C:/path/to> ffmpeg -f concat -i list.txt -c copy out.ts

  stdout & stderr

  stdout was empty. stderr is copied below (with file names modified to match the ones above) :

  ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 7.3.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libmfx --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth
  
    libavutil      55. 78.100 / 55. 78.100
  
    libavcodec     57.107.100 / 57.107.100
  
    libavformat    57. 83.100 / 57. 83.100
  
    libavdevice    57. 10.100 / 57. 10.100
  
    libavfilter     6.107.100 /  6.107.100
  
    libswscale      4.  8.100 /  4.  8.100
  
    libswresample   2.  9.100 /  2.  9.100
  
    libpostproc    54.  7.100 / 54.  7.100
  
  Input #0, tty, from 'C:/path/to/list.txt':
  
    Duration: 00:00:00.08, bitrate: 42 kb/s
  
      Stream #0:0: Video: ansi, pal8, 640x400, 25 fps, 25 tbr, 25 tbn, 25 tbc
  
  Stream mapping:
  
    Stream #0:0 (ansi) -> concat
  
    concat -> Stream #0:0 (libx264)
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 000001e385b45040] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  [libx264 @ 000001e385b45040] profile High 4:4:4 Predictive, level 3.0, 4:4:4 8-bit
  
  [libx264 @ 000001e385b45040] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to 'C:/path/to/out.mp4':
  
    Metadata:
  
      encoder         : Lavf57.83.100
  
      Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv444p, 640x400, q=-1--1, 25 fps, 12800 tbn, 25 tbc
  
      Metadata:
  
        encoder         : Lavc57.107.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
  frame=    2 fps=0.0 q=-1.0 Lsize=      15kB time=00:00:00.04 bitrate=3099.0kbits/s speed=1.55x
  
  video:14kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 5.619430%
  
  [libx264 @ 000001e385b45040] frame I:1     Avg QP:12.71  size:  8083
  
  [libx264 @ 000001e385b45040] frame P:1     Avg QP:29.71  size:  5928
  
  [libx264 @ 000001e385b45040] mb I  I16..4: 87.9%  0.0% 12.1%
  
  [libx264 @ 000001e385b45040] mb P  I16..4:  9.3%  0.0%  0.0%  P16..4:  0.4%  0.0%  0.0%  0.0%  0.0% skip:90.3%
  
  [libx264 @ 000001e385b45040] coded y,u,v intra: 17.9% 0.0% 0.0% inter: 0.1% 0.0% 0.0%
  
  [libx264 @ 000001e385b45040] i16 v,h,dc,p: 88%  8%  4%  0%
  
  [libx264 @ 000001e385b45040] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 31% 19%  3%  2%  3%  7%  4%  3%
  
  [libx264 @ 000001e385b45040] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 000001e385b45040] kb/s:1401.10