Encode the recorded m2ts file

auto_encode.rb

require 'fileutils'
require 'shellwords'

WD = File.dirname(File.expand_path(__FILE__))
TSDIR = "path"
MP4DIR = "path"

def recodeing? (ts)
  s1 = File.size(ts)
  sleep 1
  s2 = File.size(ts)

  return true if s1 < s2
  return false if s1 == s2
end

def encode (ts)
  ts_shl = Shellwords.escape(ts)
  mp4_shl = Shellwords.escape(MP4DIR + "/" + File.basename(ts, ".m2ts") + ".mp4")
  option = "-threads 4 -vcodec libx264 -ar 48000 -ab 128k -r 30000/1001 -vsync 1 -deinterlace -f mp4 -bufsize 20000k -maxrate 25000k"
  system("ffmpeg -i #{ts_shl} #{option} #{mp4_shl}")
end

# read encode log
FileUtils.touch(WD+"/encode.log") unless File.exist?(WD+"/encode.log")
encode_log = File.open(WD+"/encode.log","r").read

# read recode dirctory files
Dir.glob(TSDIR+"/*.m2ts") do |ts|
  ts_name = File.basename(ts)	
  # Skip encoded
  next if encode_log.include?(ts_name)

  puts ("Find new ts file #{ts_name}")
  if recodeing? (ts)
    puts ("Recodeing ts skip.")
  else
    puts ("Start encode!")
    encode (ts)

    File.open(WD+"/encode.log","a") do |f|
      f.puts(Time.now.to_s+"\t"+ts_name)
    end
  end

end