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• Q&A : An interview with Matomo founder, Matthieu Aubry

  20 novembre 2018, par Joselyn Khor — About, Community

  Hey everyone ! Joselyn here. As always the views of our community remain top of mind. So to make sure you guys know the thinking behind these new projects, we reached out to Matomo’s founder, Matthieu, to ask questions you might want answered. Please check it out below !

  Hi guys, it’s Matthieu ! Here to answer some questions about the rebrand and the future of Matomo and Innocraft.

  What’s upcoming ?

  We’ve been busy implementing our rebrand into all aspects of Matomo and there’s also our new website, which is launching today ! The new website will help people better understand what Matomo is and how they can benefit from using modern web analytics.

  Why was Matomo and Innocraft brought onto one website ?

  In the past the separation caused a bit of confusion so we’re taking this as a chance to unite both the business brand, Innocraft and community brand, Matomo, on one website. Putting our focus on one brand, Matomo, makes it easier for people to see us with fresh eyes. We have a community side as well as a business side and while the community is still incredibly important to us, we find we have a powerful analytics tool that is capable of helping businesses too.

  Is Matomo becoming commercial or turning corporate ?

  No. nothing is changing. Matomo is still an open-source project and community. Although we’ll have a pricing page and “start free trial” on the new website brought over from Innocraft.cloud, the Matomo community will still play the biggest part on the Matomo website. We have dedicated sections focused on Community and On-Premise.

  The rebrand exercise helped us gain a refreshed perspective. After reflecting on how far we’ve come, we can feel more confident about Matomo Analytics itself as a platform. We believe it’s a great chance to bring that confidence into the brand and vision. We are proud that it’s an awesome open-source platform and at the same time it’s also powerful as a tool for businesses.

  Why is there no ‘download for free’ button on the homepage ?

   

  
  We feel many users coming to the site will get confused about our hosting options (Cloud and On-Premise) which is something you don’t usually consider when choosing an analytics tool.

  The reason for us to not have that button is when people see a “download for free” button on the homepage next to a “try it for free” button, it creates confusion. For those who do choose to download Matomo often become confused when they are left with a .zip file unaware how to install it and the technical requirements of self-hosting. We feel presenting our users with the simplest installation option first will give them the best chance possible to try Matomo to its full potential, without cost.

  And you can still find the link to Download Matomo in the footer of each page.
  

   

  Is Matomo still free to download and have forever ?

  Absolutely. The free open-source download can be found on the On-Premise section of the website, or download Matomo here.

  Why is it important to have a business behind the project ?

  There’s the reality that we have to make money in order for the Matomo project to survive … and thrive. The reason we still need a business side (Innocraft) is to fund and sustain the Matomo project. Whenever people purchase premium features, this helps finance the development of Matomo for our community.

  Because of the business we’re able to continually maintain and develop Matomo for you guys as well as future users. For example, the next release Matomo 3.8.0 is already mostly developed and will bring lots of interesting features too, like the two-factor authentication, Brute Force Protection, failed tracking requests reporting, lots of JavaScript tracker improvements, a new total summary row below reports, and many more security fixes, bug fixes, and other new features.

  So we see a business being very helpful in supporting our open-source community. Without a business side, our free, open-source project would not be able to survive.

  How will you protect the Matomo project ?

  We’ve ensured the Matomo project will be protected for the future as we wish to turn it into a not-for-profit foundation.

  We’ve also got a safeguard where the open-source code will stay under a GPL license forever. This is so we can guarantee, that no matter what happens, the Matomo project itself will stay completely free software.

  Is there a way for people to help ?

  There are heaps of ways to help ! You can help other Matomo users in the forums, contribute to fixes on GitHub, leave a great review (e.g. alternativeTo), help look for bugs with our Security Bounty Programme or participate and spread the word about Matomo in our community social media pages – Mastodon, Facebook, Twitter. Telling your friends about us would be very helpful too !

  What’s planned for the future ?
  We’ve worked hard to become the #1 open-source analytics platform (1.4 million websites use Matomo today), but now we need to empower even more individuals and businesses to take back control of their own data.

  Showing our community that we have a powerful platform is crucial, but alongside that our values are what define us. User privacy is still of utmost importance and we’re here to make it known that power needs to rest in the hands of people and not large corporations.

  You can rest easy knowing you’re doing your part in using trustworthy and dependable tools. By joining many other companies who are growing this movement to decentralise the Internet, we can build a safer, online world together.

  Join this analytics revolution and let us know what you think about Matomo !

• Data Privacy Day 2020

  27 janvier 2020, par Matthieu Aubry — Privacy
  It’s January 28th which means it’s Data Privacy Day !

  Today is an important day for the Matomo team as we reflect on our mission and our goals for 2020. This year I wanted to send a video message to all Matomo users, community members and customers. 

  Check it out (full transcript below)

  

  A video message from Matomo founder, Matthieu Aubry

  Privacy-friendly alternatives

  • NoMoreGoogle :
    a comprehensive list giving you options for other privacy-friendly alternatives.
  • Switching.Software :
    Ethical alternatives to popular sites and apps.
  • Web browser :
    Firefox
    Brave
    Vivaldi
  • Search engine :
    DuckDuckGo
    Qwant
  • File sharing :
    Nextcloud
  • Email provider :
    ProtonMail
    Mailfence
    Tutanota

  Video transcript

  Hey everyone,

  Matthieu here, Founder of Matomo.

  Today is one of the most significant days of the year for the Matomo team – it’s Data Privacy Day. And so I wanted to quickly reflect on our mission and the significance of this day. 

  In today’s busy online world where data is king, this day is an important reminder of being vigilant in protecting our personal information online.

  Matomo began 12 years ago as an open-source alternative to Google Analytics – the goal was, and still is to give full control of data back to users. 

  In 2020, we are determined to see through this commitment. We will keep building a powerful and ethical web analytics platform that focuses on privacy protection, data ownership, and provides value to all Matomo users and customers.

  And what’s fantastic is to see the rise of other quality software companies offering privacy-friendly alternatives for web browsers, search engines, file sharing, email providers, all with a similar mission. And with these products now widely available, we encourage you to take back control of all your online activities and begin this new decade with a resolution to stay safe online.

  I’ll provide you with some links below the video to check out these privacy-friendly alternatives. If you have a website and want to gain valuable insights on the visitors while owning your data, join us ! 

  Matomo Analytics On-Premise is and always will be free to download and install on your own servers and on your own terms.

  Also feel free to join our active community or spread the word to your friends and network about the importance of data privacy.

  Thank you all and wishing you a great 2020 !

  For more information on how Matomo protects the privacy of your users, visit : https://matomo.org/privacy/

  Do you have privacy concerns ?

  What better day than today to speak up ! What privacy concerns have you experienced ?

  Contact Support

• Syncing 3 RTSP video streams in ffmpeg

  26 septembre 2017, par Damon Maria

  I’m using an AXIS Q3708 camera. It internally has 3 sensors to create a 180º view. Each sensor puts out it’s own RTSP stream. To put together the full 180º view I need to pull an image from each stream and place the images side-by-side. Obviously it’s important that the 3 streams be synchronized so the 3 images were taken at the same ’wall clock’ time. For this reason I want to use ffmpeg because it should be a champ at this.

  I intended to use the hstack filter to combine the 3 images. However, it’s causing me a lot of grief and errors.

  What I’ve tried :

  1. Hstack the rtsp streams :

  ffmpeg -i "rtsp://root:root@192.168.13.104/axis-media/media.amp?camera=1" -i "rtsp://root:root@192.168.13.104/axis-media/media.amp?camera=2" -i "rtsp://root:root@192.168.13.104/axis-media/media.amp?camera=3" -filter_complex "[0:v][1:v][2:v]hstack=inputs=3[v]" -map "[v]" out.mp4

  I get lots of RTSP dropped packets decoding errors which is strange given this is an i7-7700K 4.2GHz with an NVIDIA GTX 1080 Ti and 32GB of RAM and the camera is on a local gigabit network :

  [rtsp @ 0xd4eca42a00] max delay reached. need to consume packetA dup=0 drop=136 speed=1.16x    
  
  [rtsp @ 0xd4eca42a00] RTP: missed 5 packets
  
  [rtsp @ 0xd4eca42a00] max delay reached. need to consume packetA dup=0 drop=137 speed=1.15x    
  
  [rtsp @ 0xd4eca42a00] RTP: missed 4 packets
  
  [h264 @ 0xd4ecbb3520] error while decoding MB 14 15, bytestream -21
  
  [h264 @ 0xd4ecbb3520] concealing 1185 DC, 1185 AC, 1185 MV errors in P frame

  2. Using ffmpeg -i %s -c:v copy -map 0:0 out.mp4 to save each stream to a file and then run the above hstack command with the 3 files rather than 3 RSTP streams. First off, there are no dropped packets saving the files, and the hstack runs at speed=25x so I don’t know why the operation in 1 had so many errors. But in the resulting video, some parts ’pause’ between frames as tho the same image was used across 2 frames for some of the hstack inputs, but not the others. Also, the ’scene’ at a set distance into the video lags behind the input videos – which would happen if the frames are being duplicated.

  3. If I use the RTSP streams as the input, and for the output specify -f null - (the null demuxer) then the demuxer reports a lot of these errors :

  [null @ 0x76afb1a060] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 1 >= 1
  
      Last message repeated 1 times
  
  [null @ 0x76afb1a060] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 2 >= 2
  
  [null @ 0x76afb1a060] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 3 >= 3
  
  [null @ 0x76afb1a060] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 4 >= 4
  
      Last message repeated 1 times
  
  [null @ 0x76afb1a060] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 5 >= 5
  
      Last message repeated 1 times

  Which sounds again like frames are being duplicated.

  4. If I add -vsync cfr then the null muxer no longer reports non monotonically increasing dts, and dropped packet / decoding errors are reduced (but still there). Does this show that timing info from the RTSP streams is ’tripping up’ ffmpeg ? I presume it’s not a solution tho because it is essentially wiping out and replacing the timing information ffmpeg would need to use to sync ?

  5. Saving a single RTSP stream (re-encoding, not using the copy codec or null demuxer) logs a lot of warnings like :

  Past duration 0.999992 too large
  
      Last message repeated 7 times
  
  Past duration 0.999947 too large
  
  Past duration 0.999992 too large

  6. I first tried performing this in code (using PyAV). But struck problems when pushing a frame from each container into the 3 hstack inputs would cause hstack to output multiple frames (when it should be only one). Again, this points to hstack duplicating frames.

  7. I have used Wireshark to sniff the RTCP/RTP traffic and the RTCP Sender Report’s have correct NTP timestamps in them matched to the timestamps in the RTP streams.

  8. Using ffprobe to show the frames of a RTSP stream (example below) I would have expected to see real (NTP based timestamps) given they exist in the RTCP packets. I’m not sure what is correct behaviour for ffprobe. But it does show that most frame timestamps are not exactly 0.25s (the camera is running 4 FPS) which might explain -vsync cfr ’fixing’ some issues and the Past duration 0.999992 style errors :

  pkt_pts=1012502
  
  pkt_pts_time=0:00:11.250022
  
  pkt_dts=1012502
  
  pkt_dts_time=0:00:11.250022
  
  best_effort_timestamp=1012502
  
  best_effort_timestamp_time=0:00:11.250022
  
  pkt_duration=N/A
  
  pkt_duration_time=N/A
  
  pkt_pos=N/A

  I posted this as a possible hstack bug on the ffmpeg bug tracker but that discussion fizzled out.

  So, question : how do I sync 3 RTSP video streams through hstack in ffmpeg ?