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• Community survey revealed – Discover the profile of a Piwik user

  7 novembre 2017, par Piwik Core Team — Community

  In January 2017 we launched a Piwik community survey which gathered more than a thousand responses. It is now time for us to release the results of this study. We release today the results of this survey painting a picture of the growing Piwik Analytics community !

  What types of businesses are using Piwik ?

  Just a reminder : Piwik is currently used on over 1 million websites and mobile apps.

  

  According to the community survey, 75% of businesses using Piwik are small companies and 25% are medium to large enterprises. Out of those 25%, more than 7% are large enterprises with more than a 1,000 of employees.

  Why choosing Piwik ?

  With a large majority, Open Source came first with almost 50% of the answers, then come the data security aspect (27%) in third comes the raw data access (10,5%) and for a minor part customizability with 1,9%.

  How often is Piwik used ?

  92% of respondents said that they are using Piwik regularly (at least once per month) :

  • on a daily basis 28%
  • on a weekly basis 41%
  • on a monthly basis 23%

  Is Piwik mostly installed on Intranet or External websites ?

  

  Piwik is mainly installed on external websites, 80% of the cases. However, 12% of respondents answer that they are using it on intranet too. The remaining 8% have chosen not to answer.

  Which CRM for Piwik users ?

  As CRM is a high valuable asset within the company, we wanted to check if there were any needs for Piwik to develop something specifically for CRM.
  The answers showed us that in almost 60% of the cases no CRM was used at all, for the rest there is no clear leading CRM which is used more than others.

  Do Piwik users wish more integrations to third party applications such as CRM, support systems ?

  60% of responders said no, which can clearly be understood from previous question. But the 40% remaining are clearly showing that they wish more integrations. We heard you, we are constantly updating our integration page. If there are any integrations you wish to have, do not hesitate to contact the solution provider and suggest them to integrate their product with Piwik.

  How do Piwik users get notified when a KPI reach a specific value ?

  Great question, great answers. Almost 50% of responders are not notified when something happens in Piwik and prefer to have a look at the UI instead. 15% did not know that it was possible using Custom Alerts but may have a look it. Some of you are also designing their own system. It made us realize here that we need to change our UI and integrate custom alerts to the main UI directly. Custom alerts is a great feature that you can access within the administration panel to get notified when something happened in your Piwik data.

  

  Which improvements could be made to Piwik ?

  Only 20% of you answered to this question, which is a good thing for us

• ffmpeg MAMP "dyld : Library not loaded" error

  9 octobre 2013, par benedict_w

  I am using ffmpeg on Mac OSX 10.7.3 in MAMP through PHP's exec() command, I have an absolute path set to call ffmpeg, e.g.

  /opt/local/bin/ffmpeg -i "/sample.avi"

  But I receive the following error -

  dyld: Library not loaded: /opt/local/lib/libjpeg.8.dylib  Referenced from: /opt/local/lib/libopenjpeg.1.dylib  Reason: Incompatible library version: libopenjpeg.1.dylib requires version 13.0.0 or later, but libJPEG.dylib provides version 12.0.0

  N.B. ffmpeg was installed through Macports.

  It works from the command line.

  What to do ?

  EDIT

  I've reopened this - originally thought shell_exec() solved the issue, but infact it should be called differently - and I didn't realise until investigating further today. Here is my code using shell_exec and still giving the error above :

   $cmd = '/opt/local/bin/ffmpeg -h';
  
   $cmd = escapeshellcmd($cmd) . ' 2>&1';
  
   $output = shell_exec($cmd);
  
   var_dump($output);

• Can you "stream" images to ffmpeg to construct a video, instead of saving them to disk ?

  8 juillet 2016, par Brandon

  My work recently involves programmatically making videos. In python, the typical workflow looks something like this :

  import subprocess, Image, ImageDraw
  
  
  
  for i in range(frames_per_second * video_duration_seconds):
  
      img = createFrame(i)
  
      img.save("%07d.png" % i)
  
  
  
  subprocess.call(["ffmpeg","-y","-r",str(frames_per_second),"-i", "%07d.png","-vcodec","mpeg4", "-qscale","5", "-r", str(frames_per_second), "video.avi"])

  This workflow creates an image for each frame in the video and saves it to disk. After all images have been saved, ffmpeg is called to construct a video from all of the images.

  Saving the images to disk (not the creation of the images in memory) consumes the majority of the cycles here, and does not appear to be necessary. Is there some way to perform the same function, but without saving the images to disk ? So, ffmpeg would be called and the images would be constructed and fed to ffmpeg immediately after being constructed.