Class: VCSRuby::ContactSheet

Inherits:
Object
  • Object
show all
Defined in:
lib/contact_sheet.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(video, capturer) ⇒ ContactSheet

Returns a new instance of ContactSheet.



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# File 'lib/contact_sheet.rb', line 16

def initialize video, capturer
  @video = video
  @capturer = capturer
  @signature = "Created by Video Contact Sheet Ruby"
  initialize_filename

  if Configuration.instance.verbose?
    puts "Processing #{File.basename(video.full_path)}..."
  end

  return unless @video.valid?

  detect_video_properties

  @from = TimeIndex.new 0
  @to = @video.info.duration

  @timestamp = Configuration.instance.timestamp
  @softshadow = Configuration.instance.softshadow
  @polaroid = Configuration.instance.polaroid

  @tempdir = Dir.mktmpdir

  ObjectSpace.define_finalizer(self, self.class.finalize(@tempdir) )
  initialize_geometry(Configuration.instance.rows, Configuration.instance.columns, Configuration.instance.interval)

end

Instance Attribute Details

#aspect_ratio ⇒ Object

Returns the value of attribute aspect_ratio.



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# File 'lib/contact_sheet.rb', line 13

def aspect_ratio
  @aspect_ratio
end

#format ⇒ Object

Returns the value of attribute format.



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# File 'lib/contact_sheet.rb', line 13

def format
  @format
end

#from ⇒ Object

Returns the value of attribute from.



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# File 'lib/contact_sheet.rb', line 14

def from
  @from
end

#highlight ⇒ Object

Returns the value of attribute highlight.



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# File 'lib/contact_sheet.rb', line 11

def highlight
  @highlight
end

#length ⇒ Object (readonly)

Returns the value of attribute length.



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# File 'lib/contact_sheet.rb', line 14

def length
  @length
end

#polaroid ⇒ Object

Returns the value of attribute polaroid.



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# File 'lib/contact_sheet.rb', line 12

def polaroid
  @polaroid
end

#signature ⇒ Object

Returns the value of attribute signature.



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# File 'lib/contact_sheet.rb', line 11

def signature
  @signature
end

#softshadow ⇒ Object

Returns the value of attribute softshadow.



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# File 'lib/contact_sheet.rb', line 12

def softshadow
  @softshadow
end

#thumbnail_height ⇒ Object

Returns the value of attribute thumbnail_height.



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# File 'lib/contact_sheet.rb', line 13

def thumbnail_height
  @thumbnail_height
end

#thumbnail_width ⇒ Object

Returns the value of attribute thumbnail_width.



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# File 'lib/contact_sheet.rb', line 13

def thumbnail_width
  @thumbnail_width
end

#timestamp ⇒ Object

Returns the value of attribute timestamp.



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# File 'lib/contact_sheet.rb', line 12

def timestamp
  @timestamp
end

#title ⇒ Object

Returns the value of attribute title.



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# File 'lib/contact_sheet.rb', line 11

def title
  @title
end

#to ⇒ Object

Returns the value of attribute to.



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# File 'lib/contact_sheet.rb', line 14

def to
  @to
end

Instance Method Details

#build ⇒ Object 



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# File 'lib/contact_sheet.rb', line 126

def build
  if (@video.info.duration.total_seconds < 1.0)
    puts "Video is shorter than 1 sec"
  else
    initialize_filters
    initialize_thumbnails
    capture_thumbnails

    puts "Composing standard contact sheet..." unless Configuration.instance.quiet?
    montage = splice_montage(montage_thumbs)

    image = MiniMagick::Image.open(montage)

    puts "Adding header and footer..." unless Configuration.instance.quiet?
    final = add_header_and_footer image

    puts "Done. Output wrote to '#{filename}'" unless Configuration.instance.quiet?
    FileUtils.mv(final, full_path)
  end
end

#columns ⇒ Object 



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# File 'lib/contact_sheet.rb', line 75

def columns
  @columns
end

#filename ⇒ Object 



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# File 'lib/contact_sheet.rb', line 59

def filename
  "#{@out_filename}#{@format}"
end

#full_path ⇒ Object 



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# File 'lib/contact_sheet.rb', line 67

def full_path
  File.join(@out_path, filename)
end

#initialize_filename(override = nil) ⇒ Object 



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# File 'lib/contact_sheet.rb', line 44

def initialize_filename override = nil
  @out_path = File.dirname(@video.full_path)
  @out_filename = File.basename(override || @video.full_path,'.*')

  extension = override ?  File.extname(override) : ''
  @format = extension.length > 0 ? extension : '.png'
end

#initialize_geometry(rows, columns, interval) ⇒ Object 



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# File 'lib/contact_sheet.rb', line 52

def initialize_geometry(rows, columns, interval)
  @has_interval = !!interval
  @rows = rows
  @columns = columns
  @interval = interval
end

#interval ⇒ Object 



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# File 'lib/contact_sheet.rb', line 79

def interval
  @interval || (@to - @from) / (number_of_caps)
end

#number_of_caps ⇒ Object 



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# File 'lib/contact_sheet.rb', line 83

def number_of_caps
  if @has_interval
    (@to - @from) / @interval
  else
    if @rows && @columns
      @rows * @columns
    else
      raise "you need at least 2 parameters from columns, rows and interval"
    end
  end
end

#rows ⇒ Object 



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# File 'lib/contact_sheet.rb', line 71

def rows
  @rows
end