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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 !

• 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 !

• FFMPEG get stuck when transcoding too many FLAC audios [closed]

  6 juin 2024, par user25436721

  I'm currently using Editly for create some videos from code, but there are some bugs with ffmpeg(latest).

  


  Nothing returns after hours processing(460 audios files during test), I already tried with flac, aac, libshine and libmp3lame encoders, already tried a different a ffmpeg version(static).

  


  From the editly code, I already changed the ffmpeg query, slicing in chunks(75), the results were :

  


  

  • 0, 75 ok

  


  • 0, 80 stuck

  


  • 75, 150 ok

  


  • 150, 225 ok

  


  • 225, 300 stuck

  


  • 300, 375 ok

  


  • 375, 450 ok

  


  


  Stuck screen(directly from terminal) :

  


  built with gcc 13 (Ubuntu 13.2.0-23ubuntu4)
  configuration: --pkg-config-flags=--static --prefix='~/ffmpeg/dyn' --extra-cflags='-I/~/ffmpeg/dyn/include' --extra-ldflags='-L/~/ffmpegffmpeg/dyn/lib' --bindir='~/ffmpeg/dyn/bin' --enable-debug=3 --enable-vaapi --enable-libvorbis --enable-libvpx --enable-gpl --cpu=native --enable-opengl --enable-libfdk-aac --enable-libx264 --enable-nonfree --enable-libmp3lame --enable-libshine
  libavutil      59. 21.100 / 59. 21.100
  libavcodec     61.  6.100 / 61.  6.100
  libavformat    61.  3.104 / 61.  3.104
  libavdevice    61.  2.100 / 61.  2.100
  libavfilter    10.  2.102 / 10.  2.102
  libswscale      8.  2.100 /  8.  2.100
  libswresample   5.  2.100 /  5.  2.100
  libpostproc    58.  2.100 / 58.  2.100

Input #n..., flac, from 'editly-tmp-.../clip...-audio.flac':
  Metadata:
    encoder         : Lavf61.3.104
  Duration: 00:01:53.62, start: 0.000000, bitrate: 1 kb/s
  Stream #458:0: Audio: flac, 48000 Hz, stereo, s32 (24 bit)
Stream mapping:
  Stream #n1:0 (flac) -> acrossfade
  Stream #n2:0 (flac) -> acrossfade
  Stream #n3:0 (flac) -> acrossfade
  Stream #n...:0 (flac) -> acrossfade
  acrossfade:default -> Stream #0:0 (libshine)
  Press [q] to stop, [?] for help


  


  if I quit then returns :

  


  [fc#0 @] [ao0->#0:0 @] No filtered frames for output stream, trying to initialize anyway.
Output #0, mp3, to 'editly-tmp-.../audio-concat.mp3':
  Metadata:
    TSSE            : Lavf61.3.104
  Stream #0:0: Audio: mp3, 48000 Hz, stereo, s16p, 128 kb/s
      Metadata:
        encoder         : Lavc61.6.100 libshine
[out#0/mp3 @ 0x60633b423480] video:0KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: unknown
[out#0/mp3 @ 0x60633b423480] Output file is empty, nothing was encoded(check -ss / -t / -frames parameters if used)
size=       0KiB time=N/A bitrate=N/A speed=N/A    


  


  Editly code for generating FFMPEG query :

  


      let inStream = '[0:a]';
    const filterGraph = clipAudio.slice(0, -1).map(({ transition }, i) => {
      const outStream = `[concat${i}]`;

      const epsilon = 0.0001; // If duration is 0, ffmpeg seems to default to 1 sec instead, hence epsilon.
      let ret = `${inStream}[${i + 1}:a]acrossfade=d=${Math.max(epsilon, transition.duration)}:c1=${transition.audioOutCurve || 'tri'}:c2=${transition.audioInCurve || 'tri'}`;

      inStream = outStream;

      if (i < clipAudio.length - 2) ret += outStream;
      return ret;
    }).join(',');

    const args = [
      ...getFfmpegCommonArgs({ enableFfmpegLog }),
      ...(flatMap(clipAudio, ({ path }) => ['-i', path])),
      '-filter_complex',
      filterGraph,
      '-c', 'flac',
      '-y',
      outPath,
    ];
    await execa(ffmpegPath, args);


  


  FFMPEG query structure :

  


  ffmpeg -i /editly-tmp-.../clip000-audio.flac -i /editly-tmp-.../clip226-audio.flac -i ... -filter_complex [0:a][1:a]acrossfade=d=1:c1=tri:c2=tri[concat0],[concat0][2:a]acrossfade=d=0.425:c1=tri:c2=tri[concat1],[concat1][3:a]acrossfade=d=0.425:c1=tri:c2=tri[concat2],... -c flac -y /editly-tmp-.../audio-concat-3.mp3


  


  My hardware :

  


  Ubuntu 24.04 LTS
AMD Ryzen™ 5 5600G
Only 8gb(the other slot is broken)
AMD Radeon™ RX 580 2048SP


  


  Sorry my poor english :P

  


  Change Codecs, FFMPEG version, node version, slice the files in chunks, change SO(worked in Windows).