Class: Hearken::Indexing::FfmpegFile

Inherits:
Object
  • Object
show all
Includes:
Executor
Defined in:
lib/hearken/indexing/ffmpeg_file.rb

Constant Summary

Constants included from Tagged

Tagged::FIELDS, Tagged::FILE_FIELDS, Tagged::TAG_FIELDS

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Executor

#debug, #execute, #extract_file_attributes

Methods included from Tagged

#no_tag_fields?, #to_a

Constructor Details

#initialize(path) ⇒ FfmpegFile

Returns a new instance of FfmpegFile.



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# File 'lib/hearken/indexing/ffmpeg_file.rb', line 14

def initialize path
  extract_file_attributes path
  content = execute "ffmpeg -i #{@path.escape_for_sh}"
  state = :draining
  @meta = {}
  content.each_line do |line|
    l = line.chomp
    case l
      when "  Metadata:"
        state = :metadata
      else
        if state == :metadata
          begin
            m = / *: */.match l
            add_meta m.pre_match.strip.downcase.to_sym, m.post_match.strip if m
          rescue ArgumentError => e
          end
        end
    end
  end

  @title = tag :title, :tit2
  @album = tag :album, :talb
  @artist = tag :artist, :tpe1, :tpe2
  @albumartist = tag :album_artist, :tso2
  @time = to_duration tag :duration
  @date = tag :date, :tdrc, :tyer
  @track = tag :track, :trck
  @puid = tag :"musicip puid"
  @mbartistid = tag :musicbrainz_artistid, :"musicbrainz artist id"
  @mbalbumid = tag :musicbrainz_albumid,:"musicbrainz album id"
  @mbalbumartistid = tag :musicbrainz_albumartistid, :"musicbrainz album artist id"
  @asin = tag :asin
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method) ⇒ Object 



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# File 'lib/hearken/indexing/ffmpeg_file.rb', line 58

def method_missing method
  @meta[method.to_s]
end

Class Method Details

.from_file(path) ⇒ Object 



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# File 'lib/hearken/indexing/ffmpeg_file.rb', line 9

def self.from_file path
  file = Hearken::Indexing::File.new Pathname.new path
  Hearken::Indexing::FfmpegFile.new file
end

Instance Method Details

#add_meta(key, value) ⇒ Object 



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# File 'lib/hearken/indexing/ffmpeg_file.rb', line 49

def add_meta key, value
  @meta[key] ||= value
end

#tag(*names) ⇒ Object 



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# File 'lib/hearken/indexing/ffmpeg_file.rb', line 53

def tag *names
  names.each { |name| return @meta[name] if @meta[name] }
  nil
end