It merges xhiaopang's 1 minute videos to 1 day video. 샤오팡의 1분짜리 결과물들을 모아서 하루짜리 비디오로 합쳐줍니다.

xiaomi_xiaopang_video_merge.rb

require 'fileutils'
require 'filemagic'

fm = FileMagic.new

entries = Dir.glob('*').select {|f| File.directory? f}
entries.each do |dir|
    puts "PWD: #{Dir.pwd}"
    Dir.chdir(dir)
    puts "PWD: #{Dir.pwd}"
    dirs = Dir.glob('*').select {|x| x =~ /\d{8}/}.sort
    dirs.each do |working_directory|
        Dir.chdir(working_directory)
        puts "PWD: #{Dir.pwd}"

        files = Dir.glob('*.mp4').select {|x| x =~ /\d\d_\d\d/}.select do |file|
            fm.file(file).include?('MP4')
        end

        params = files.sort.join(' + ')   
        output_name = Dir.pwd.split('/').last + '.mp4'
        system("mkvmerge -o #{output_name} #{params}", out: $stdout, err: :out)

        Dir.chdir('..')
    end

    Dir.chdir('..')
end