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• Announcing Piwik Community Meetup in Munich : Register now !

  5 mai 2014, par Piwik Core Team

  We’re excited to announce our second Piwik community Meetup ! This will be a unique opportunity to connect with other Piwik users, and meet the core team behind Piwik.

  Updated : presentation slides

  The Making Of The Analytics Platform Of The Future

  Piwik in Enterprise

  Piwik Analytics Platform

  Guest lecture : TV to Web Analytics

  Guest lecture : Oxid analytics with Piwik

  When and where is the meetup ? (update, see below)

  Location : Munich, Germany
  Date : Tuesday July 29th 2014
  Time : 5PM
  Language : German/English
  Cost : Free !

  Register now !

  Who can join ?

  All Piwik community members (users, translators, contributors) are warmly invited to join the meetup. Almost all of the core team will be present, we’re looking forward to meeting you !

  What to expect for the Piwik meetup ?

  The meetup will consist of three speakers giving quick 15-20 minute presentations followed by Q&A.

  • Discover some of the upcoming features
  • Learn tricks to make the most out of Piwik
  • Networking and socialising… and an after party in a local bar to continue the discussion !

  Who can join the meetup ?

  This meetup is open to all Piwik users and members of the community.

  • If you are using Piwik to improve your websites and apps, or generally curious about digital analytics and marketing
  • If you are interested in the platform, integrating your app with Piwik or building plugins, come meet with other developers and creators of Piwik

  Timing

  • Doors open at 17:00
  • Starts at 17:30
  • Ends at 20:00 – 20:30

  Schedule

  • 17:30 – Welcome speech (Peter Boehlke (german))
  • 17:40 – Piwik for governments & corporations – Piwik PRO case study (Maciej Zawadziński english)
  • 18:05 – Break (25 minutes) – Coffee, Tea, pastries and cold buffet (free)
  • 18:30 – Overview of the platform Piwik, custom data tracking, publishing on the new Marketplace (Thomas Steur (german))
  • 18:55 – Break (10 minutes)
  • 19:05 – Piwik users present interesting real world use cases (german)
    – TV-to-Web analytics (Jasper Sasse)
    – Piwik from a SEO’s perspective (Thomas Zeithaml)
    – Using the Piwik Framework to analyze Shop-Data (Joachim Barthel)
  • 19:30 – Break (10 minutes)
  • 19:40 – Next big features, milestones, future roadmap (Matthieu Aubry english)
  • 20:05 – Break (5 minutes)
  • 20:10 – Summary & end of the conference (german)
  • After party at a nearby bar or restaurant (open end)

  Call for Papers

  We would like to hear about how you use Piwik ! If you’d like to present your interesting use case on the conference (speaking time 5 to 7 minutes), please contact us at hello@piwik.org !

  Meetup location

  Munich Workstyle
  Landwehrstraße 61
  80336 München
  Location / Directions

  Parking space is limited : We recommend to use public transport !
  Stations nearby :
  
   S-Bahn : Hauptbahnhof, Stachus (both 700m)
  
   U-Bahn : Stachus (700m), Theresienwiese (400m)

  Beverage pricing
  
   Mineral water : EUR 3,10 (0,75l)
  
   Softdrinks / juices : EUR 2,10
  
   Beer : EUR 2,80

  

  A special thank you to our sponsor Mayflower GmbH !
  
  
  

  Register now

  Seats are limited, please register today to secure your seat :
  Register now !

• Announcing Piwik Community Meetup in Munich : Register now !

  5 mai 2014, par Piwik Core Team

  We’re excited to announce our second Piwik community Meetup ! This will be a unique opportunity to connect with other Piwik users, and meet the core team behind Piwik.

  Updated : presentation slides

  The Making Of The Analytics Platform Of The Future

  Piwik in Enterprise

  Piwik Analytics Platform

  Guest lecture : TV to Web Analytics

  Guest lecture : Oxid analytics with Piwik

  When and where is the meetup ? (update, see below)

  Location : Munich, Germany
  Date : Tuesday July 29th 2014
  Time : 5PM
  Language : German/English
  Cost : Free !

  Register now !

  Who can join ?

  All Piwik community members (users, translators, contributors) are warmly invited to join the meetup. Almost all of the core team will be present, we’re looking forward to meeting you !

  What to expect for the Piwik meetup ?

  The meetup will consist of three speakers giving quick 15-20 minute presentations followed by Q&A.

  • Discover some of the upcoming features
  • Learn tricks to make the most out of Piwik
  • Networking and socialising… and an after party in a local bar to continue the discussion !

  Who can join the meetup ?

  This meetup is open to all Piwik users and members of the community.

  • If you are using Piwik to improve your websites and apps, or generally curious about digital analytics and marketing
  • If you are interested in the platform, integrating your app with Piwik or building plugins, come meet with other developers and creators of Piwik

  Timing

  • Doors open at 17:00
  • Starts at 17:30
  • Ends at 20:00 – 20:30

  Schedule

  • 17:30 – Welcome speech (Peter Boehlke (german))
  • 17:40 – Piwik for governments & corporations – Piwik PRO case study (Maciej Zawadziński english)
  • 18:05 – Break (25 minutes) – Coffee, Tea, pastries and cold buffet (free)
  • 18:30 – Overview of the platform Piwik, custom data tracking, publishing on the new Marketplace (Thomas Steur (german))
  • 18:55 – Break (10 minutes)
  • 19:05 – Piwik users present interesting real world use cases (german)
    – TV-to-Web analytics (Jasper Sasse)
    – Piwik from a SEO’s perspective (Thomas Zeithaml)
    – Using the Piwik Framework to analyze Shop-Data (Joachim Barthel)
  • 19:30 – Break (10 minutes)
  • 19:40 – Next big features, milestones, future roadmap (Matthieu Aubry english)
  • 20:05 – Break (5 minutes)
  • 20:10 – Summary & end of the conference (german)
  • After party at a nearby bar or restaurant (open end)

  Call for Papers

  We would like to hear about how you use Piwik ! If you’d like to present your interesting use case on the conference (speaking time 5 to 7 minutes), please contact us at hello@piwik.org !

  Meetup location

  Munich Workstyle
  Landwehrstraße 61
  80336 München
  Location / Directions

  Parking space is limited : We recommend to use public transport !
  Stations nearby :
  
   S-Bahn : Hauptbahnhof, Stachus (both 700m)
  
   U-Bahn : Stachus (700m), Theresienwiese (400m)

  Beverage pricing
  
   Mineral water : EUR 3,10 (0,75l)
  
   Softdrinks / juices : EUR 2,10
  
   Beer : EUR 2,80

  

  A special thank you to our sponsor Mayflower GmbH !
  
  
  

  Register now

  Seats are limited, please register today to secure your seat :
  Register now !

• WebM file not seekable in Chrome when loaded through PHP (other browsers work)

  13 avril 2014, par Zoon

  I am having a mind-boggling problem, I just can't seem to resolve.

  Providing a WebM file through PHP is nothing new in my world, and I even know how to work with HTTP 206 Partial Content. But for some reason Chrome does not like it.

  A simple HTML5 video playback

  <video width="640" height="360" poster="picture/preview/V00000006.jpg" controls="controls" preload="preload">
  
      <source type="video/webm" src="/video/V00000006.webm">
  
  </source></video>

  where /video/V00000006.webm is rewritten to a PHP-file in Apache, will playback just fine.
  But in Chrome the seekbar is not effective. When clicking on the seekbar the player will freeze and no longer playback until page is refreshed. Firefox handles it just fine !

  If I change /video/V00000006.webm to be a direct link to the same video it works just fine. I even compared the network requests between the two versions (with and without PHP) and there is barely any difference in the first request, but the second is failing in the PHP-delivered video.

  Initial request and seek request for Apache-delivered video file :

      Request URL :http://mytestserver.net/movie1152x720.webm
      Request Method:GET
      Status Code:206 Partial Content
      Request Headers
      Accept :*/*
      Accept-Encoding:identity ;q=1, * ;q=0
      Accept-Language:da-DK,da ;q=0.8,en-US ;q=0.6,en ;q=0.4
      Cache-Control:no-cache
      Connection:keep-alive
      Cookie:PHPSESSID=i562540rek172mnv3nk528acj0 ; userPassword= ; userEmail=
      Host:mytestserver.net
      Pragma:no-cache
      Range:bytes=0-
      Referer :http://mytestserver.net/video.html
      User-Agent:Mozilla/5.0 (X11 ; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36
      Response Headers
      Accept-Ranges:bytes
      Connection:close
      Content-Length:4446451
      Content-Range:bytes 0-4446450/4446451
      Content-Type:video/webm
      Date:Fri, 11 Apr 2014 13:07:30 GMT
      ETag :"d2d0027-43d8f3-b91417c0"
      Last-Modified:Fri, 11 Apr 2014 12:46:31 GMT
      Server:Apache/2.2.3 (CentOS)
      —
      Request URL :http://mytestserver.net/movie1152x720.webm
  
      Request Method:GET
  
      Status Code:206 Partial Content
  
      Request Headers
  
      Accept :*/*
  
      Accept-Encoding:identity ;q=1, * ;q=0
  
      Accept-Language:da-DK,da ;q=0.8,en-US ;q=0.6,en ;q=0.4
  
      Cache-Control:no-cache
  
      Connection:keep-alive
  
      Cookie:PHPSESSID=i562540rek172mnv3nk528acj0 ; userPassword= ; userEmail=
  
      Host:mytestserver.net
  
      Pragma:no-cache
  
      Range:bytes=4445881-
  
      Referer :http://mytestserver.net/video.html
  
      User-Agent:Mozilla/5.0 (X11 ; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36
  
      Response Headers
  
      Accept-Ranges:bytes
  
      Connection:close
  
      Content-Length:570
  
      Content-Range:bytes 4445881-4446450/4446451
  
      Content-Type:video/webm
  
      Date:Fri, 11 Apr 2014 13:09:02 GMT
  
      ETag :"d2d0027-43d8f3-b91417c0"
  
      Last-Modified:Fri, 11 Apr 2014 12:46:31 GMT
  
      Server:Apache/2.2.3 (CentOS)
  

  Initial request and seek request for PHP-streamed video :

      Request URL :http://mytestserver.net/video/V00000006.webm
      Request Method:GET
      Status Code:206 Partial Content
      Request Headers
      Accept :*/*
      Accept-Encoding:identity ;q=1, * ;q=0
      Accept-Language:da-DK,da ;q=0.8,en-US ;q=0.6,en ;q=0.4
      Cache-Control:no-cache
      Connection:keep-alive
      Cookie:PHPSESSID=i562540rek172mnv3nk528acj0 ; userPassword= ; userEmail=
      Host:mytestserver.net
      Pragma:no-cache
      Range:bytes=0-
      Referer :http://mytestserver.net/video.html
      User-Agent:Mozilla/5.0 (X11 ; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36
      Response Headers
      Accept-Ranges:bytes
      Cache-Control:no-store, no-cache, must-revalidate, post-check=0, pre-check=0
      Connection:close
      Content-Length:8566268
      Content-Range:bytes 0-8566267/8566268
      Content-Type:video/webm
      Date:Fri, 11 Apr 2014 13:31:27 GMT
      Expires:Thu, 19 Nov 1981 08:52:00 GMT
      Pragma:no-cache
      Server:Apache/2.2.3 (CentOS)
      X-Powered-By:PHP/5.3.27
      —
      Request URL :http://mytestserver.net/video/V00000006.webm
  
      Request Headers CAUTION : Provisional headers are shown.
  
      Accept-Encoding:identity ;q=1, * ;q=0
  
      Cache-Control:no-cache
  
      Pragma:no-cache
  
      Range:bytes=4338314-
  
      Referer :http://mytestserver.net/video.html
  
      User-Agent:Mozilla/5.0 (X11 ; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36
  

  Notice how the second request does not complete, Provisional headers are shown.

  I have tried altering the cache headers, setting it to the future, setting them blank and using file attachment headers.

  I tried fiddling around a lot with the serving code, but lately I have ended up with a simple example.

  <?php
  
  
  
  $path = 'test.webm';
  
  
  
  $size=filesize($path);
  
  
  
  $fm=@fopen($path,'rb');
  
  if(!$fm) {
  
    header ("HTTP/1.0 404 Not Found");
  
    die();
  
  }
  
  
  
  $begin=0;
  
  $end = $size-1;
  
  
  
  if(isset($_SERVER['HTTP_RANGE'])) {
  
    if(preg_match('/bytes=\h*(\d+)-(\d*)[\D.*]?/i', $_SERVER['HTTP_RANGE'], $matches)) {
  
      $begin=intval($matches[0]);
  
      if(!empty($matches[1])) {
  
        $end=intval($matches[1]);
  
      }
  
    }
  
  }
  
  
  
  if($begin>0||$end<$size)
  
    header('HTTP/1.0 206 Partial Content');
  
  else
  
    header('HTTP/1.0 200 OK');
  
  
  
  header("Content-Type: video/webm");
  
  header('Accept-Ranges: bytes');
  
  header('Content-Length:'.($end-$begin+1));
  
  header("Content-Disposition: inline;");
  
  header("Content-Range: bytes $begin-$end/$size");
  
  header("Content-Transfer-Encoding: binary\n");
  
  header('Connection: close');
  
  
  
  ob_get_clean();
  
  flush();
  
  
  
  $f = fopen($path, 'r');
  
  fseek($f, $offset);
  
  
  
  $pos = 0;
  
  $length = $end-$begin;
  
  
  
  while($pos < $length)
  
  {
  
      $chunk = min($length-$pos, 1024);
  
  
  
      echo fread($f, $chunk);
  
      flush();
  
  
  
      $pos += $chunk;
  
  }
  
  ?>

  Please note, entering the PHP-delivered video URL directly into the browser does not make a difference from showing it in a HTML page.

  I hope someone has an answer to why seeking might not work. Let me know if you have any suggestions.

  Thanks !