Module: CarrierWave::OptimzeImage

Defined in:
lib/carrierwave-optimize-image.rb

Instance Method Summary collapse

Instance Method Details

#check_file_format? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/carrierwave-optimize-image.rb', line 16

def check_file_format?
  if file.content_type.include?("gif") || file.content_type.include?("video")
    false
  else 
    true
  end
end

#create_temp_image ⇒ Object 



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# File 'lib/carrierwave-optimize-image.rb', line 28

def create_temp_image
  tempfile = Tempfile.new(["#{file.filename}_#{Time.current.to_i}", File.extname(file.path)])
  tempfile.binmode
  tempfile.write(to_blob)
  ffmpeg(tempfile)
  tempfile.unlink
end

#ffmpeg(tempfile) ⇒ Object 



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# File 'lib/carrierwave-optimize-image.rb', line 40

def ffmpeg(tempfile)
   system(" ffmpeg -y -i #{tempfile.path}  -q:v #{@level} #{current_path}")  
end

#lossless_ffmpeg_compression ⇒ Object 



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# File 'lib/carrierwave-optimize-image.rb', line 24

def lossless_ffmpeg_compression
   create_temp_image
end

#optimize(options = {}) ⇒ Object 



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# File 'lib/carrierwave-optimize-image.rb', line 3

def optimize(options = {})
  @level = options[:level].present? ? options[:level].to_i : 30
  begin
    
  if check_file_format?
    lossless_ffmpeg_compression
  end
    
  rescue Exception => e
    puts e
  end
end

#to_blob ⇒ Object 



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# File 'lib/carrierwave-optimize-image.rb', line 36

def to_blob
  File.binread(file.path)
end