Class: MultimediaParadise::Audio::ToMp3

Inherits:
MultimediaParadise::AudioBase show all
Defined in:
lib/multimedia_paradise/audio/to_mp3.rb

Overview

MultimediaParadise::Audio::ToMp3

Constant Summary collapse

BITRATE_TO_USE =
#

BITRATE_TO_USE

#
'128k'

Constants inherited from Base

Base::ERROR, Base::ERROR_LINE, Base::NAMESPACE, Base::USE_THIS_NAMESPACE_FOR_THE_COLOURS, Base::USE_THIS_NAMESPACE_FOR_THE_CORE_COLOURS

Instance Method Summary collapse

Methods inherited from MultimediaParadise::AudioBase

#directory_to_the_local_songs?, #return_random_audio_file

Methods inherited from Base

[], #actions, #append_what_into, #be_silent, #be_verbose?, #beautiful_url, #cartoons_directory?, #clear_the_internal_hash, #cliner, #cliner_with_time_stamp, #colourized_comment, #copy_file, #crimson, #dataset_from_file_video_collection, #dd_mm_yyyy, #debug?, #default_readlines, #directory_to_realvids?, #do_not_use_opn, #dodgerblue, #does_the_video_player_support_this_commandline?, #e, #ecomment, #ecrimson, #efancy, #enable_debug, #ensure_main_encoding, #ensure_that_the_output_directory_exists, #eparse, #erev, #esystem, #ewarn, #file_video_collection?, #filter_for_audio_files, #filter_for_video_files, #forestgreen, #gold, #grey, #hh_mm_ss, #home_x_video?, #indianred, #infer_the_namespace, #internal_hash?, #is_audio_file?, #is_mkv?, #is_mp3?, #is_mp4?, #is_multimedia_file?, #is_on_roebe?, #is_video_file?, #konsole_colour_peru, #lightblue, #lightgreen, #load_yaml, #local_audio_directory?, #log_dir?, #map_symbol_to_locally_existing_file, #mediumorchid, #mediumpurple, #mediumslateblue, #mkdir, #move_file, #namespace?, #no_file_exists, #no_file_exists_at, #olive, #olivedrab, #opne, #opnecomment, #opnn, #orange, #palegoldenrod, #palegreen, #powderblue, #project_base_directory?, #rds, #register_sigint, #remove_file, #report_pwd, #reset_the_internal_hash, #return_all_video_files, #return_pwd, #return_random_video, #rev, #royalblue, #save_what_into, #sdir, #seagreen, #seconds_to_time_format, #select_only_video_files_from, #set_be_verbose, #set_use_colours, #sfancy, #sfile, #simp, #skyblue, #slateblue, #springgreen, #steelblue, #swarn, #teal, #time_right_now, #to_hh_mm_ss, #tomato, #true_rev, #try_to_rename_kde_konsole_tab, #ucliner, #use_colours?, #use_opn?, #use_which_video_player?, #verbose_truth, #video_collection?, #violet, #yaml_directory?, #yel

Methods included from CommandlineArgumentsModule

#all_input_starts_with_a_number?, #commandline_arguments?, #commandline_arguments_as_a_string, #first_argument?, #first_non_hyphened_commandline_argument?, #set_commandline_arguments

Constructor Details

#initialize(*i) ⇒ ToMp3

#

initialize

#


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# File 'lib/multimedia_paradise/audio/to_mp3.rb', line 29

def initialize(*i)
  reset
  set_files(i)
  run
end

Instance Method Details

#filter_away_commandline_arguments_from_this_input(i) ⇒ Object

#

filter_away_commandline_arguments_from_this_input

We assume the input to this method will be an Array.

#


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# File 'lib/multimedia_paradise/audio/to_mp3.rb', line 51

def filter_away_commandline_arguments_from_this_input(i)
  selection = i.select {|entry| entry.start_with? '--' }
  set_commandline_arguments(selection)
  return i.reject {|entry| entry.start_with? '--' }
end

#menu(i = commandline_arguments? ) ⇒ Object

#

menu (menu tag)

#


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# File 'lib/multimedia_paradise/audio/to_mp3.rb', line 75

def menu(
    i = commandline_arguments?
  )
  if i.is_a? Array
    i.flatten.each {|entry| menu(entry) }
  else
    case i # case tag
    # ===================================================================== #
    # === tomp3 * --basic-output-name
    # ===================================================================== #
    when /^-?-?basic(-|_)?output(-|_)?name$/i
      @prepend_this_string_to_the_filename = ''
    end
  end
end

#process_the_files(i = @files) ⇒ Object

#

process_the_files

#


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# File 'lib/multimedia_paradise/audio/to_mp3.rb', line 94

def process_the_files(
    i = @files
  )
  i.each {|this_file|
    output_filename = @prepend_this_string_to_the_filename+
                      File.basename(this_file).
                           sub(/#{File.extname(this_file)}$/,'').delete('()')+
                           '.mp3'
    if this_file.include? '(' or this_file.include?(' ')
      this_file = '"'+this_file+'"'
    end
    _ = 'ffmpeg -i '+this_file+
        ' -vn -ar 44100 -ac 2 -ab '+BITRATE_TO_USE+' -f mp3 '+
        output_filename
    e "#{rev}The output file will be called: #{sfile(output_filename)}"
    e
    esystem _, colour: :royalblue # <- Pass the command into this system()-variant.
    e
    output_filename # <- And return it here.
  }
end

#reset ⇒ Object

#

reset

#


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# File 'lib/multimedia_paradise/audio/to_mp3.rb', line 38

def reset
  super()
  # ======================================================================= #
  # === @prepend_this_string_to_the_filename
  # ======================================================================= #
  @prepend_this_string_to_the_filename = 'output_'
end

#run ⇒ Object

#

run (run tag)

#


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# File 'lib/multimedia_paradise/audio/to_mp3.rb', line 119

def run
  menu
  process_the_files
end

#set_files(i) ⇒ Object

#

set_files

#


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# File 'lib/multimedia_paradise/audio/to_mp3.rb', line 60

def set_files(i)
  i = [i].flatten.compact
  i = filter_away_commandline_arguments_from_this_input(i)
  if i and i.is_a?(Array) and i.flatten.empty?
    # ===================================================================== #
    # Try to use all .wav files in the current directory in this case.
    # ===================================================================== #
    i = Dir['*.wav']
  end
  @files = i
end