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• Official Piwik Training in Berlin – 2014, June 6th

  6 mai 2014, par Piwik Core Team — Community

  This event will focus on providing training to users of the Piwik analytics platform. The training will provide attendees with the necessary skills and knowledge that they will need to be able to take their website to the next level with Piwik.

  Language : English

  Register to Piwik Training now.

  Location : The 25hours Hotel Bikini Berlin is as diverse as the big city it is located in and as wild as a jungle. The hotel showcases cosmopolitan Berlin at its location in the listed Bikini-Haus building between the Tiergarten park and Breitscheidplatz with Kaiser Wilhelm Memorial Church.

  

  Why do you need training ?

  If you have just started using Piwik and are finding it a bit overwhelming, this training event will benefit you immensely. You will be able to learn all the necessary skills that will allow you move forward with Piwik.

  For users who have been using Piwik for a short time and have a bit of experience in using Piwik, you will be able to learn how to advance your skills and extend your knowledge of the Piwik platform.

  Advanced users will be able to gain more knowledge about the complex features and functions that Piwik incorporates, allowing you to customise different areas of the platform and learn about advanced topics.

  How can you benefit from this training event ?

  By understanding how Piwik works and how to use and operate Piwik more effectively, you will be able to make sound changes to your website that will allow you to achieve your business goals.

  Everyone, from ecommerce businesses to government organisations can benefit from this training event and learn the essential skills and gain the relevant knowledge to meet their goals and requirements.

  Some of the skills that you will learn during the training include :

  • How to install and get started with the Piwik platform
  • How Piwik will add value to your website
  • How to analyse and make sense of the data and information that you collect
  • How to create custom segments that will allow you to report on certain data and information
  • Advance exercises – Piwik settings, tweaking and basic diagnostics

  What equipment do I need in order to participate in the event ?

  You will need a computer that is able to connect to a Wifi network

  Are the tickets transferable ?

  Yes, the tickets are transferable.

  What is the refund policy on the tickets ?

  You are entitled to a refund up to 1 week before the commencement of the training.

  Training details

  <script type="text/javascript">          (function() { var scribd = document.createElement("script"); scribd.type = "text/javascript"; scribd.async = true; scribd.src = "#{root_url}javascripts/embed_code/inject.js"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(scribd, s); })()        </script>

  Contact us : contact@piwik.pro

  Registrations

  Register to Piwik Training now !

• fftools/ffmpeg_filter : take fallback parameters from decoder, not demuxer

  30 avril 2023, par Anton Khirnov

  fftools/ffmpeg_filter : take fallback parameters from decoder, not demuxer
  When an input stream terminates and no frames were successfully decoded,
  
  filtering code will currently configure the filtergraph using demuxer
  
  stream parameters. Use decoder parameters instead, which should be more
  
  reliable. Also, initialize them immediately when an input stream is
  
  bound to a filtergraph input, so that these parameters are always
  
  available (if at all) and filtering code does not need to reach into the
  
  decoder at some arbitrary later point.
  

  • [DH] fftools/ffmpeg.c
  • [DH] fftools/ffmpeg.h
  • [DH] fftools/ffmpeg_demux.c
  • [DH] fftools/ffmpeg_filter.c

• pydub .export() issue - "wave.Error : # channels not specified"

  6 novembre 2018, par Jeremy

  I’m trying to cut a clip from an mp3 using the pydub library. Exporting the clip is giving me a bit of an issue.

  I’ve tried exporting as both .mp3 and .wav. I’m sure it’s something silly I’ve done on my end. Pydub seems great so far, I’m just messing something up along the way.

  The export portion of the my code is as follows :

  def cut_clip(track, start, stop):
  
      full_file = pydub.AudioSegment.from_file(track, format="mp3")
  
      clip = full_file[start:stop]
  
      return 
  
  
  
  def create_clip_file():
  
      global clip
  
      clip = cut_clip('test.mp3', 2200000, 2280000)
  
      clip = pydub.AudioSegment.export("clip.wav", format="wav")
  
      print("%s is written." % clip)
  
      new_file_length = get_track_length(clip)
  
  
  
  create_clip_file()

  Here is the Traceback.

  subprocess.call(['ffmpeg', '-y', '-f', 'mp3', '-i', 'test.mp3', '-acodec', 'pcm_s16le', '-vn', '-f', 'wav', '-'])
  
  Traceback (most recent call last):
  
    File "test.py", line 43, in <module>
  
      create_clip_file()
  
    File "test.py", line 38, in create_clip_file
  
      clip = pydub.AudioSegment.export("clip.wav", format="wav")
  
    File "/home/jeremy/.virtualenvs/chopin-qm-qH-MX/lib/python3.4/site-packages/pydub/audio_segment.py", line 795, in export
  
      wave_data.setnchannels(self.channels)
  
  AttributeError: 'str' object has no attribute 'channels'
  
  Exception ignored in: <bound method="method" of="of" object="object" at="at" 0x6fee80b615c0="0x6fee80b615c0">>
  
  Traceback (most recent call last):
  
    File "/usr/lib/python3.4/wave.py", line 315, in __del__
  
      self.close()
  
    File "/usr/lib/python3.4/wave.py", line 433, in close
  
      self._ensure_header_written(0)
  
    File "/usr/lib/python3.4/wave.py", line 450, in _ensure_header_written
  
      raise Error('# channels not specified')
  
  wave.Error: # channels not specified
  
  </bound></module>

  Does anyone happen to see what I’m doing wrong here ?

  I am able to cut the clip using ffmpeg but I was really trying to wrap my head around pydub.