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• ffmpeg converting video to images while video file is being written

  20 décembre 2018, par user3398227

  Hopefully an easy question for an ffmpeg expert !

  I’m currently converting large (+6GB) mpeg video into an image sequence - which is working well using the below ffmpeg command :

  ffmpeg -i "input.mpeg" -vf - fps=fps=2 -f image2 -qscale 1 -s 1026x768
  "output%6d.jpg"

  however i have to wait for the file to finish being written to disk before i kick off ffmpeg - but this takes a good hour or so to finish writing, but what i’ve noticed is that ffmpeg can start reading the file while its being written to disk - the only snag here is it gets to the end of the file and stops before the file has finished being written...

  Question is, is there a way that ffmpeg can convert to an image sequence at the same pace the video is being written (and not exit out ?)... or know to wait for the next frame to be written from the source. (unfortunately the input doesn’t support streaming, I only get a network drive and file to work off.. ) I thought i read somewhere that ffmpeg can process at the video frame rate but cant seem to find this command for love or money in the doco !!

  Thanks !

• Load processed video instead of original video - Rails, Dragonfly

  1er février 2016, par Michael B

  In my Rails 4-Project, I am using Dragonfly to upload images and videos.
  For image-processing I use imagemagick, for videoprocessing I use ffmpeg.

  Videos are uploaded and stored in the folder uploads/videos. After processing, they are stored in public/ffmpeg_videos/

  My question is : How can I use the processed-video instead of the uploaded video ?

  e.g. I use this code in the view, to display a video :

  <video src="&lt;%=@video.video.url%>"></video>

  This successfully loads the original video from the upload-path. But what do I have to change, to load the video from the ffmpeg-path ?

  initializers/dragonfly.rb

  require 'dragonfly'
  
  
  
  # Configure
  
  Dragonfly.app(:images).configure do
  
    plugin :imagemagick
  
    protect_from_dos_attacks false
  
    secret 'd045734b043b4383a246c5c8daf2d3e31217dc8b030f21861e4fd16c4b72d382'
  
    url_format '/media/:job/:name'
  
  
  
    datastore :file,
  
              root_path: Rails.root.join('uploads/images/'),
  
              server_root: Rails.root.join('uploads')
  
  end
  
  
  
  Dragonfly.app(:videos).configure do
  
    secret 'd045734b043b4383a246c5c8daf2d3e31217dc8b030f21861e4fd16c4b72d382'
  
    url_format "/video/:job/:name"
  
  
  
    datastore :file,
  
              root_path: Rails.root.join('uploads/videos/'),
  
              server_root: Rails.root.join('uploads')
  
  end
  
  
  
  # Logger
  
  Dragonfly.logger = Rails.logger
  
  
  
  # Mount as middleware
  
  Rails.application.middleware.use Dragonfly::Middleware, :images
  
  Rails.application.middleware.use Dragonfly::Middleware, :videos
  
  
  
  # Add model functionality
  
  if defined?(ActiveRecord::Base)
  
    ActiveRecord::Base.extend Dragonfly::Model
  
    ActiveRecord::Base.extend Dragonfly::Model::Validations
  
  end

• Evolution #4493 (Nouveau) : Ajouter des robots à l’écran de sécurité

  17 mai 2020

  Bonjour,

  J’ai quelques sites qui ont des nombres de visites bizarres (trop grand, d’un facteur 10 à 30 certains jours).

  J’ai fait un patch : https://git.spip.net/RealET/spip/commit/ce2ce832b697ab0754a78e0fc8b298ae1e9c992b
  Mais je ne sais pas comment en faire un PR.

  Pour info, voici un extrait d’awstats pour le serveur concerné :
  Pour info :
  MJ12bot 2 241 164+29470 32.60 Go 17 Mai 2020 - 11:50
  AhrefsBot 1 388 315+9242 28.07 Go 17 Mai 2020 - 11:50
  SemrushBot 1 251 075+74309 23.91 Go 17 Mai 2020 - 11:50
  bingbot 619 488+28872 22.38 Go 17 Mai 2020 - 11:50
  DotBot 394 445+7038 22.52 Go 17 Mai 2020 - 11:50
  Googlebot 297 801+35895 11.64 Go 17 Mai 2020 - 11:50
  crawl 243 784+325 4.66 Go 17 Mai 2020 - 11:39
  MegaIndex.ru 172 567+51 5.41 Go 17 Mai 2020 - 04:50
  BLEXBot 161 178+4405 4.24 Go 17 Mai 2020 - 06:42
  Applebot 136 660+2443 3.20 Go 17 Mai 2020 - 11:50
  robot 129 533+3017 7.80 Go 17 Mai 2020 - 11:50
  empty user agent string 117 782+778 6.55 Go 17 Mai 2020 - 11:49
  Firefox version 10 and lower - various robots 106 252+366 1.87 Go 17 Mai 2020 - 11:50
  qwantify 83 743+3013 3.61 Go 17 Mai 2020 - 11:50
  Unknown robot identified by bot* 53 246+1846 2.25 Go 17 Mai 2020 - 11:37
  spip 46 253 554.75 Mo 17 Mai 2020 - 11:50
  link 44 510+567 761.38 Mo 17 Mai 2020 - 11:50
  Googlebot-Image 36 704 1.24 Go 17 Mai 2020 - 11:48
  facebookexternalhit 35 176+1 1.31 Go 17 Mai 2020 - 11:49
  MSIE 6 - ( Rogue Robot ) 33 090 1.10 Go 17 Mai 2020 - 11:47
  YandexBot 21 272+9245 822.57 Mo 17 Mai 2020 - 11:50
  Unknown robot (identified by hit on robots.txt) 0+27213 98.21 Mo 17 Mai 2020 - 11:48
  LinkpadBot 17 954 289.02 Mo 17 Mai 2020 - 06:46
  infobot 15 038+1887 198.28 Mo 17 Mai 2020 - 04:19
  MSIE 5 - ( Rogue Robot ) 16 110+1 980.04 Mo 17 Mai 2020 - 11:18
  Sogou web spider 14 514+453 239.14 Mo 17 Mai 2020 - 11:49
  ltx71 10 593+3663 378.89 Mo 17 Mai 2020 - 11:50
  BingPreview 11 920 1.87 Go 17 Mai 2020 - 11:40
  nbot 8 476+1023 230.66 Mo 17 Mai 2020 - 11:42
  Apache-HttpClient 7 897+43 99.64 Mo 17 Mai 2020 - 11:01
  Curl 7 752 151.93 Mo 17 Mai 2020 - 11:49
  CFNetwork 7 313 779.65 Mo 17 Mai 2020 - 11:25
  core 7 295+2 174.93 Mo 17 Mai 2020 - 11:35
  oBot 7 064+230 338.14 Mo 17 Mai 2020 - 08:06
  SeznamBot 3 677+3204 148.02 Mo 16 Mai 2020 - 22:36
  twitterbot 4 264+2518 100.64 Mo 17 Mai 2020 - 11:44
  panscient 6 298+397 97.66 Mo 17 Mai 2020 - 06:37
  A PHP script 6 395 13.36 Mo 17 Mai 2020 - 11:50
  archive.org_bot 4 917+385 157.65 Mo 17 Mai 2020 - 11:50
  vagabondo 5 022+12 197.93 Mo 17 Mai 2020 - 09:58
  Feedfetcher-Google 4 808 137.78 Mo 17 Mai 2020 - 11:41
  zend_http_client 4 535 20.98 Mo 17 Mai 2020 - 11:34
  ia_archiver 4 411+98 302.37 Mo 17 Mai 2020 - 03:58
  feed 4 401 127.40 Mo 17 Mai 2020 - 11:45
  dataprovider.com 4 003+167 169.38 Mo 17 Mai 2020 - 10:31
  universalfeedparser 4 156 82.26 Mo 17 Mai 2020 - 11:36
  Baidu ( catchall ) 3 956 260.02 Mo 17 Mai 2020 - 11:11
  coccoc 1 509+2374 33.71 Mo 17 Mai 2020 - 10:37
  python 3 607+87 54.82 Mo 17 Mai 2020 - 11:44
  Mail.RU Bot 1 969+1492 177.25 Mo 17 Mai 2020 - 11:13