split ts and encode.

enc.rb

#!/usr/bin/env ruby

require 'optparse'
require 'fileutils'

class Runner
  def initialize(argv)
    @recorded_dir = '/chinachu/recorded'
    @encoded_dir = ENV['HOME'] + '/encoded'
    @work_dir = ENV['HOME'] + '/tmp'
    @work_name = 'v'
    @m2ts_suffix = '.m2ts'
    @m4v_suffix = '.m4v'
    @dryrun = true

    opt = OptionParser.new
    opt.on('-x') { |v| @dryrun = false }
    opt.parse!(argv)
  end

  def run
    abort('pid_file exists.') unless lock
    Dir.glob("#{@recorded_dir}/*#{@m2ts_suffix}").sort!.each do |f|
      next unless finished?(f)
      name = f.gsub(/#{@recorded_dir}\//, '').gsub(/#{@m2ts_suffix}/, '')
      next if File.exists?(efname(name))
      File.symlink(f, ifname)
      Encoder.new(ifname, ofname, @dryrun).run
      File.rename(ofname, efname(name))
      File.delete(ifname)
    end
    unlock
  end

  private
  def lock
    return false if File.exists?(pidfile)
    File.open(pidfile, 'w') { |f| f.write($$) }
  end

  def unlock
    File.delete(pidfile)
  end

  def pidfile
    "#{@work_dir}/#{@work_name}.pid"
  end

  def efname(name)
    "#{@encoded_dir}/#{name}#{@m4v_suffix}"
  end

  def ifname
    "#{@work_dir}/#{@work_name}#{@m2ts_suffix}"
  end

  def ofname
    "#{@work_dir}/#{@work_name}#{@m4v_suffix}"
  end

  def finished?(f)
    x = File.stat(f)
    sleep 1
    y = File.stat(f)
    x == y
  end
end

class Encoder
  def initialize(ifname, ofname, dryrun=true)
    @ifname = ifname
    @ofname = ofname
    @dryrun = dryrun

    @wine_bin = '/usr/local/bin/wine'
    @ts_splitter_bin = '/usr/local/bin/TsSplitter.exe'
    @ts_splitter_opt = '-EIT -ECM  -EMM -SD -1SEG -WAIT2'

    @ffmpeg_bin = '/usr/local/bin/ffmpeg'
    @ffmpeg_opt = '-acodec copy -absf aac_adtstoasc -threads 0 -deinterlace -s hd720 -aspect 16:9 -r 29.97 -vcodec libx264 -g 300 -b 1600000 -f mp4'
  end

  def run
    split
    encode
    File.delete(sfname)
  end

  private
  def sfname
    @ifname =~ /^(.*)\.([^\.]+)$/
    "#{$1}_HD.#{$2}"
  end

  def split
    cmd = "#{@wine_bin} #{@ts_splitter_bin} #{@ts_splitter_opt} #{@ifname}"
    if @dryrun
      puts cmd
      FileUtils.touch(sfname)
    elsif
      `#{cmd}`
    end
  end

  def encode
    cmd = "#{@ffmpeg_bin} -i #{sfname} #{@ffmpeg_opt} #{@ofname}"
    if @dryrun
      puts cmd
      FileUtils.touch(@ofname)
    elsif
      `#{cmd}`
    end
  end
end

Runner.new(ARGV).run