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• Senior Software Engineer to join Piwik Product Engineering team

  10 janvier 2015, par Matthieu Aubry — Jobs

  At Piwik and Piwik PRO we develop the leading open source web analytics platform, used by more than one million websites worldwide. Our vision is to help the world liberate their analytics data by building the best open alternative to Google Analytics.

  The Piwik platform collects, stores and processes a lot of information : hundreds of millions of data points each month. We create intuitive, simple and beautiful reports that delight our users.

  Are you seeking a new challenge ? We are currently looking for a full time Software Developer to join our small and dedicated Product Engineering team.

  At Piwik PRO we practise agile methodology, test driven development and fast release cycles. The main technologies we work with are PHP5, JavaScript (AngularJS, jQuery) and MySQL and our tools include PhpStorm, Github, Travis CI and Slack.

  As a Software Developer for Piwik PRO, you will be writing open source code that will directly benefit 250,000+ Piwik users in 200+ countries and 50 languages.

  Key Responsibilities

  • Writing server-side code (PHP 5) and front-end code (JavaScript).
  • Creating robust high-volume production applications and developing prototypes quickly.
  • Tackling new problems as we continue to push technology forward.
  • Assisting other developers by writing peer code reviews.
  • Improving and updating our platform developer guides.
  • Lead by example, able to self manage and use initiative to get things done.

  Minimum qualifications

  • Experience in product development, security, the open source philosophy and usable interface design.
  • Understanding of, and practical experience with PHP5 and JavaScript application development.
  • 3+ years experience building successful production software systems.
  • Solid knowledge of testing principles and OOP.
  • Strong analytical and coding skills.
  • Strong written communication.

  Location

  • Offices based in Wellington, New Zealand or Wrocław, Poland.
  • However remote work is also possible.

  Apply online

  To apply for this position, please Apply online here. We look forward to receiving your applications !

• Senior Software Engineer to join Piwik Product Engineering team

  10 janvier 2015, par Matthieu Aubry — Jobs

  At Piwik and Piwik PRO we develop the leading open source web analytics platform, used by more than one million websites worldwide. Our vision is to help the world liberate their analytics data by building the best open alternative to Google Analytics.

  The Piwik platform collects, stores and processes a lot of information : hundreds of millions of data points each month. We create intuitive, simple and beautiful reports that delight our users.

  Are you seeking a new challenge ? We are currently looking for a full time Software Developer to join our small and dedicated Product Engineering team.

  At Piwik PRO we practise agile methodology, test driven development and fast release cycles. The main technologies we work with are PHP5, JavaScript (AngularJS, jQuery) and MySQL and our tools include PhpStorm, Github, Travis CI and Slack.

  As a Software Developer for Piwik PRO, you will be writing open source code that will directly benefit 250,000+ Piwik users in 200+ countries and 50 languages.

  Key Responsibilities

  • Writing server-side code (PHP 5) and front-end code (JavaScript).
  • Creating robust high-volume production applications and developing prototypes quickly.
  • Tackling new problems as we continue to push technology forward.
  • Assisting other developers by writing peer code reviews.
  • Improving and updating our platform developer guides.
  • Lead by example, able to self manage and use initiative to get things done.

  Minimum qualifications

  • Experience in product development, security, the open source philosophy and usable interface design.
  • Understanding of, and practical experience with PHP5 and JavaScript application development.
  • 3+ years experience building successful production software systems.
  • Solid knowledge of testing principles and OOP.
  • Strong analytical and coding skills.
  • Strong written communication.

  Location

  • Offices based in Wellington, New Zealand or Wrocław, Poland.
  • However remote work is also possible.

  Apply online

  To apply for this position, please Apply online here. We look forward to receiving your applications !

• Merge audio (m4s) segments into one

  20 avril 2022, par akinuri

  I recently started learning Laravel, and currently watching an online course. Online courses are fine, but I like to have local copies, so I'm trying to download/merge segmented audio from Laracasts : Laravel 8 From Scratch series.

  


  I've written some scripts (in Python) that does the following :

  


  

  1. Download the master.json

  


  2. Read master.json and download audio segments

  


  3. Merge the segments into a single file (the file is not playable yet)

  


  4. Process the audio file via ffmpeg (now it's playable, but has issues)

  


  


  I think there's a problem with the step 3 and/or 4.

  


  In step/script 3, I create a new file, and add the contents of the segments to the file in binary.

  


  Then (step/script 4), run a ffmpeg command in python : ffmpeg -i merged-file.mp4 -c copy processed-file.mp4

  


  However, the final file doesn't work/play as expected. There's a delay in the beginning, and some parts seem to be cut off/skipped.

  


  There are three possibilities :

  


  

  • Segment files are problematic (not likely ?)

  


  • I'm doing the merging wrong

  


  • I'm doing the ffmpeg processing wrong

  


  


  Can someone guide me here ?

  


  ---

  


  The issues/colored parts in the ffmpeg output are :

  


  ...
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001cfbc0de780] could not find corresponding track id 2
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001cfbc0de780] could not find corresponding trex (id 2)
...
[aac @ 000001cfbc0f0380] Number of bands (31) exceeds limit (6).
...
[mp4 @ 000001cfbc20ecc0] track 0: codec frame size is not set
...
[mp4 @ 000001cfbc20ecc0] Non-monotonous DTS in output stream 0:0; previous: 318318, current: 286286; changing to 318319. This may result in incorrect timestamps in the output file.
...


  


  Everything required for a test case is located in GitHub (akinuri/dump/m4s-segments/). Screenshot of the contents :

  


  

  


  ---

  


  Note : there are two types/formats of audio in the master.json : mp42 and dash. dash works as expected, and seem to be used in limited videos/courses. On the other hand, mp42 appears more. So I need a way to make mp42 work.