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• No such file or directory - the ffprobe binary could not be found error

  22 juin 2016, par rahul

  I am using carrierwave-video gem uploading videos through carrierwave and it’s not working.

  video_uploader.rb

  class VideoUploader < CarrierWave::Uploader::Base
  
    include CarrierWave::Video
  
    storage :file
  
    def store_dir
  
      "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  
    end
  
  end

  video.rb

  class Video < ActiveRecord::Base
  
    mount_uploader :file, VideoUploader
  
  
  
    def set_success(format, opts)
  
      self.success = true
  
    end
  
  end

  The error I am getting is :

  No such file or directory - the ffprobe binary could not be found in /home/administrator/.rvm/gems/ruby-2.3.0/bin:/home/administrator/.rvm/gems/ruby-2.3.0@global/bin:/usr/share/rvm/rubies/ruby-2.3.0/bin:/usr/share/rvm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games

• No such file or directory - the ffprobe binary could not be found error

  9 mars 2023, par webster

  I am using carrierwave-video gem uploading videos through carrierwave and it's not working.

  



  video_uploader.rb

  



  class VideoUploader < CarrierWave::Uploader::Base
  include CarrierWave::Video
  storage :file
  def store_dir
    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  end
end


  



  video.rb

  



  class Video < ActiveRecord::Base
  mount_uploader :file, VideoUploader

  def set_success(format, opts)
    self.success = true
  end
end


  



  The error I am getting is :

  



  No such file or directory - the ffprobe binary could not be found in /home/administrator/.rvm/gems/ruby-2.3.0/bin:/home/administrator/.rvm/gems/ruby-2.3.0@global/bin:/usr/share/rvm/rubies/ruby-2.3.0/bin:/usr/share/rvm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games


  


• Video size optimization

  21 janvier 2020, par Heba Gamal Eldin

  I’m working on a task that should optimize the video’s size before uploading to the server in a web application.
  So i want my model to automatically optimize each input video size.

  I have many trials in different approaches like FFmpeg :
  I used libx265, h264 and lib265 as a codec, with some videos it increases the video size and others minimize it with little ratio and it takes so long to generate the output file.

  for example with video of size 8M

  input = {input_name: None}
  
  output = {output_name: '-n preset faster -vcodec libx265 -crf 28'} 

  The output file is 10M.

  And also tried OpenCV :
  But the output videos aren’t written the file appears 0kb size.

  ex : with input video resolution (1280×544)
  I want to down scale it by :

  cap= cv2.VideoCapture(file_name)
  
  cap.set(3,640)
  
  cap.set(4,480)
  
  codec = cv2.VideoWriter_fourcc(*'XDIV')
  
  out = cv2.VideoWriter(output_file, codec, 28.0 , (640,480))
  
  While cap.isOpened():
  
     bol, frame = cap.read()
  
     out.write(frame)
  
     cv2.imshow('video', frame)

  I become little bit confused. what are the parameters of the input,output videos i should consider to be optimized and make a vital size change in each specific video ? Is it the codec, width, height only ?

  What is the most effective approach to do this ?

  Should i build a predictive model for estimating the suitable output video file parameters or there is a method that auto adjust ?

  if there’s an illustrative example please provide me.