subtitles-shift-up

subtitles-shift-up.rb

# Appends a new line with a - to every frame of movie subtitles to shift 
# the overall position up when the tv cuts down the bottom.
#
# ruby subtitles-shift-up.rb Titanic.srt
# or
# ruby subtitles-shift-up.rb Titanic.srt UTF-8
#
# result: Titanic-shifted.srt

def addEmptyLine(inFile, outFile)
    inFile.each_line do |line|
        if line.strip.empty?
            outFile.puts "-"
            outFile.puts
        else
            outFile.puts line
        end
    end
end

inFile = 
  if ARGV[1].nil?
    File.open(ARGV[0], "r", :encoding => ARGV[1])
  else 
    File.open(ARGV[0], "r", :encoding => 'ISO-8859-1')
  end

outFile = File.open("#{ARGV[0]}-shifted.srt", "w", :encoding => 'UTF-8')

addEmptyLine(inFile, outFile)