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• Python - second subprocess won't open if I use sys.argv

  3 juin 2015, par Hyperion

  I’ve got a Python script which download a video using youtube-dl and then extract frames from it using ffmpeg. This is the code :

  def DownloadVideo():
  
      output_file = "/Users/francesco/Desktop/SOURCE/%(title)s-%(id)s.%(ext)s"
  
      check_call(["youtube-dl","--output", output_file, "--restrict-filenames", "-f", "best", sys.argv[1]])
  
  
  
  def ConvertVideo(video):
  
      DEST = "/Users/francesco/Desktop/OUTPUT"
  
      SOURCE = "/Users/francesco/Desktop/SOURCE"
  
      ffmpeg_path = "/Users/francesco/Desktop/ffmpeg/ffmpeg"
  
      video_path = SOURCE + "/" + video
  
      dest_path = DEST + "/" + os.path.splitext(video)[0] + "-%d.png"
  
      check_call([ffmpeg_path, "-v", "0", "-i", video_path, "-f", "image2", dest_path])
  
  
  
  def Main():
  
      DownloadVideo()
  
      for video in os.listdir("/Users/francesco/Desktop/SOURCE"):
  
         ConvertVideo(video)

  I run the command python myscript.py myvideolink and everything goes fine in the download process, but the ConvertVideo doesn’t start, it just get frozen for a couple of seconds and then the program exits.

  If I try to run the same command skipping the DownloadVideo() (with the video already downloaded in the folder) it doens’t work too, but if I use python myscript.py without the argv[1], the ffmpeg process works ! Why this happens ?

  Update : I’ve tried to remove the -v 0 option in ffmpeg to see what actually happens, ffmpeg process starts, but get frozen like this :

  ffmpeg version 2.6.2 Copyright (c) 2000-2015 the FFmpeg developers
  
    built with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
  
    configuration: --prefix=/Volumes/Ramdisk/sw --enable-gpl --enable-pthreads --enable-version3 --enable-libspeex --enable-libvpx --disable-decoder=libvpx --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-filters --enable-libgsm --enable-libvidstab --enable-libx265 --disable-doc --arch=x86_64 --enable-runtime-cpudetect
  
    libavutil      54. 20.100 / 54. 20.100
  
    libavcodec     56. 26.100 / 56. 26.100
  
    libavformat    56. 25.101 / 56. 25.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 11.102 /  5. 11.102
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100

  Update 2 : This code seems not to work too, so I deduce is an ffmpeg problem with sys.args ?

  import subprocess
  
  import os
  
  import sys
  
  
  
  variable = sys.argv[1]
  
  
  
  
  
  def ConvertVideo(video):
  
      DEST = '/Users/francesco/Desktop/OUTPUT'
  
      SOURCE = '/Users/francesco/Desktop/SOURCE'
  
      ffmpeg_path = '/Users/francesco/Desktop/PYVIDID/ffmpeg/ffmpeg'
  
      video_path = SOURCE + '/' + video
  
      dest_path = DEST + '/' + os.path.splitext(video)[0] + '-%d.png'
  
      subprocess.check_call(['ffmpeg', '-i', video_path,'-r', '1', '-f', 'image2', dest_path])
  
  
  
  def Main():
  
      #DownloadVideo()
  
      for video in os.listdir('/Users/francesco/Desktop/SOURCE'):
  
          if not video.startswith("."):
  
              ConvertVideo(video)

  I’m not even using the argv[1] but it still got stuck.

• WordPress Analytics plugin WP-Piwik reaches version 1.0.0 (and 50,000 active users)

  29 mai 2015, par André Bräkling — Plugins

  After six years of development, we are proud to announce the 1.0.0 release of our WP-Piwik WordPress plugin !

  Started as a simple plugin to show a selection of statistics within the WordPress dashboard, WP-Piwik has become a full Piwik integration plugin. The plugin automatically adds the Piwik tracking code to your WordPress sites. The plugin displays your analytics reports directly within the WordPress admin panel. WordPress networks (“multisite”), CDN URLs and the Piwik proxy script are also supported.

  According to WordPress.org the plugin is being used by more than 50,000 WordPress sites !

  

  This article explains how to install WP-Piwik and how to configure it to work with your Piwik instance.
  

  Install WP-Piwik

  You can get WP-Piwik using WordPress’ plugin management. Login to your WordPress admin dashboard and go to « Plugins » → « Add New ». Enter « WP-Piwik » into the search field at the top right, press enter and next to WP-Piwik choose « Install Now ».

  

  If you want to use WP-Piwik in your simple WordPress blog you can just click « Activate Plugin » and WP-Piwik will ask you to configure your Piwik connection.

  Running a WordPress network/multisite you can choose to « Network Activate » the plugin after the installation process. In this case, WP-Piwik will be a fully automated feature of your WordPress network automatically tracking your sites in the same Piwik instance in separate Websites.

  Alternatively you can download WP-Piwik manually from the WordPress website and upload all files to your `wp-content/plugins` directory.

  Configure your Piwik connection

  WP-Piwik lets you choose between three connection modes :

  • Self-hosted (HTTP API) : This is the default option for a self-hosted Piwik and should work for most configurations. You just have to know your Piwik URL, which is the URL you enter to access Piwik, and your auth token (see below). WP-Piwik will connect to Piwik using http(s)-requests.
  • Self-hosted (PHP API) : Choose this, if your self-hosted Piwik and WordPress are running on the same machine and you know the full server path to your Piwik instance. Beside the full server path, you also need to know your auth token (see below).
  • Cloud-hosted (Piwik Pro) : If you are using a cloud-hosted Piwik by Piwik Pro, you just need to know your user name and your auth token (see below).

  Setting up WP-Piwik

  To configure WP-Piwik you will need to specify your Authentication token.

  • If the site you want to track in Piwik is already configured in your Piwik, you only need to specify a token_auth for a user with `view` permission.
  • If you want WP-Piwik to create the website in Piwik (or if you use WP-Piwik in network mode which requires to be able to configure your sites), you should specify a token_auth which has Super User access (after the setting up phase is completed you can set the authentication token back to the token of a `view` user).

  To find your token_auth in Piwik, click on your user name in the right right corner of your Piwik dashboard, then click the « API » in the left menu. The API page displays your auth token in a colored box, just behind the “&token_auth=” string. The screenshot below shows the token_auth anonymous, but your real one will be an alpha numerous random string like a1ec31524a8eabc7a546d71d68b28d17.

  

  That’s it. After you entered your connection data and submitted the form, WP-Piwik will welcome you with some information :

  

  You can now start to configure WP-Piwik and enable the tracking code. Learn about any setting by clicking on the small question mark sign. If you have any problem configuring or using WP-Piwik feel free to use the WordPress support forum related to WP-Piwik.

  Translating WP-Piwik

  We invite you to join our translation community at Transifex and help to translate WP-Piwik in more languages !

  Happy WordPress Analytics !

• WordPress Analytics plugin WP-Piwik reaches version 1.0.0 (and 50,000 active users)

  29 mai 2015, par André Bräkling — Plugins

  After six years of development, we are proud to announce the 1.0.0 release of our WP-Piwik WordPress plugin !

  Started as a simple plugin to show a selection of statistics within the WordPress dashboard, WP-Piwik has become a full Piwik integration plugin. The plugin automatically adds the Piwik tracking code to your WordPress sites. The plugin displays your analytics reports directly within the WordPress admin panel. WordPress networks (“multisite”), CDN URLs and the Piwik proxy script are also supported.

  According to WordPress.org the plugin is being used by more than 50,000 WordPress sites !

  

  This article explains how to install WP-Piwik and how to configure it to work with your Piwik instance.
  

  Install WP-Piwik

  You can get WP-Piwik using WordPress’ plugin management. Login to your WordPress admin dashboard and go to « Plugins » → « Add New ». Enter « WP-Piwik » into the search field at the top right, press enter and next to WP-Piwik choose « Install Now ».

  

  If you want to use WP-Piwik in your simple WordPress blog you can just click « Activate Plugin » and WP-Piwik will ask you to configure your Piwik connection.

  Running a WordPress network/multisite you can choose to « Network Activate » the plugin after the installation process. In this case, WP-Piwik will be a fully automated feature of your WordPress network automatically tracking your sites in the same Piwik instance in separate Websites.

  Alternatively you can download WP-Piwik manually from the WordPress website and upload all files to your `wp-content/plugins` directory.

  Configure your Piwik connection

  WP-Piwik lets you choose between three connection modes :

  • Self-hosted (HTTP API) : This is the default option for a self-hosted Piwik and should work for most configurations. You just have to know your Piwik URL, which is the URL you enter to access Piwik, and your auth token (see below). WP-Piwik will connect to Piwik using http(s)-requests.
  • Self-hosted (PHP API) : Choose this, if your self-hosted Piwik and WordPress are running on the same machine and you know the full server path to your Piwik instance. Beside the full server path, you also need to know your auth token (see below).
  • Cloud-hosted (Piwik Pro) : If you are using a cloud-hosted Piwik by Piwik Pro, you just need to know your user name and your auth token (see below).

  Setting up WP-Piwik

  To configure WP-Piwik you will need to specify your Authentication token.

  • If the site you want to track in Piwik is already configured in your Piwik, you only need to specify a token_auth for a user with `view` permission.
  • If you want WP-Piwik to create the website in Piwik (or if you use WP-Piwik in network mode which requires to be able to configure your sites), you should specify a token_auth which has Super User access (after the setting up phase is completed you can set the authentication token back to the token of a `view` user).

  To find your token_auth in Piwik, click on your user name in the right right corner of your Piwik dashboard, then click the « API » in the left menu. The API page displays your auth token in a colored box, just behind the “&token_auth=” string. The screenshot below shows the token_auth anonymous, but your real one will be an alpha numerous random string like a1ec31524a8eabc7a546d71d68b28d17.

  

  That’s it. After you entered your connection data and submitted the form, WP-Piwik will welcome you with some information :

  

  You can now start to configure WP-Piwik and enable the tracking code. Learn about any setting by clicking on the small question mark sign. If you have any problem configuring or using WP-Piwik feel free to use the WordPress support forum related to WP-Piwik.

  Translating WP-Piwik

  We invite you to join our translation community at Transifex and help to translate WP-Piwik in more languages !

  Happy WordPress Analytics !