Class: Radio

Inherits:
Object
  • Object
show all
Defined in:
lib/rbtune/radio.rb

Direct Known Subclasses

Agqr, ListenRadio, Radiko, Radiru, Simul

Defined Under Namespace

Classes: HTTPBadRequestException, HTTPForbiddenException

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Radio

Returns a new instance of Radio.



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# File 'lib/rbtune/radio.rb', line 30

def initialize
	@outdir = '.'
	@ext = 'm4a'
end

Instance Attribute Details

#area_en ⇒ Object (readonly)

for Radiko(Premium)



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# File 'lib/rbtune/radio.rb', line 22

def area_en
  @area_en
end

#area_id ⇒ Object (readonly)

for Radiko(Premium)



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# File 'lib/rbtune/radio.rb', line 20

def area_id
  @area_id
end

#area_ja ⇒ Object (readonly)

for Radiko(Premium)



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# File 'lib/rbtune/radio.rb', line 21

def area_ja
  @area_ja
end

#ext ⇒ Object (readonly)

Returns the value of attribute ext.



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# File 'lib/rbtune/radio.rb', line 19

def ext
  @ext
end

#outdir ⇒ Object

Returns the value of attribute outdir.



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# File 'lib/rbtune/radio.rb', line 18

def outdir
  @outdir
end

Class Method Details

.bands ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 51

def self.bands
	@@bands
end

.channels ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 46

def self.channels
	@channels ||= self.stations.map {|st| [st.id, st.uri]}.to_h
end

.db ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 36

def self.db
	@@db ||= Station::pstore_db
end

.find(id) ⇒ Object

Radioクラスのリストから、id と一致する放送局を探すreturn: [Radioクラス, 放送局] or nil



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# File 'lib/rbtune/radio.rb', line 63

def self.find(id)
	Radio.bands.each do |tuner|
		if tuner.stations
			station = tuner.stations.find {|station| station.id == id}
			return [tuner, station] if station
		end
	end
	nil
end

.inherited(subclass) ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 24

def Radio.inherited(subclass)
	@@bands ||= []
	@@bands << subclass
end

.match(name) ⇒ Object

Radioクラスのリストから、name を含む放送局を探すreturn: [Radioクラス, 放送局] or nil



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# File 'lib/rbtune/radio.rb', line 76

def self.match(name)
	matcher = /#{name}/i
	Radio.bands.each do |tuner|
		next unless tuner.stations
		found = tuner.stations.find { |station| station.name.match?(matcher) || station.ascii_name.match?(matcher) }
		return [tuner, found] if found
	end
	nil
end

.search(channel) ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 56

def self.search(channel)
	radio_class, station = self.find(channel) || self.match(channel)
end

.stations ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 41

def self.stations
	@stations ||= self.db.transaction(true) { self.db[name] }
end

Instance Method Details

#agent ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 87

def agent
	@agent ||= Mechanize.new
end

#channel_to_uri ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 117

def channel_to_uri
	self.class::channels[@channel] || @channel
end

#close ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 108

def close
end

#convert(tmpfile, recfile) ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 167

def convert(tmpfile, recfile)
	FileUtils.mv tmpfile, recfile
end

#convert_ffmpeg(tmpfile, recfile) ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 172

def convert_ffmpeg(tmpfile, recfile)
	ffmpeg = FFMpeg.new
	ffmpeg['loglevel'] = 'quiet'
	ffmpeg['i'] = %Q("#{tmpfile}")
	# ffmpeg['b:a'] = '70k'
	stdout, stderr, status = ffmpeg.rec recfile, nil
	FileUtils.rm tmpfile if status.success?
end

#create_player(uri) ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 92

def create_player(uri)
	# Player のサブクラスのインスタンスを生成する
	FFMpeg.new( {
		i: uri,
		# acodec: 'copy', # acodecオプションはiオプションのあとに置かないとエラー
	} )
end

#datetime(dt) ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 182

def datetime(dt)
	dt.to_s[0..15].gsub(/:/, '=')
end

#fetch_stations ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 201

def fetch_stations
	body = agent.get stations_uri
	stations = parse_stations body
end

#login(account = nil, password = nil) ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 101

def (=nil, password=nil)
	# ラジオサービスにログイン
end

#make_recfile(title, datetime) ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 196

def make_recfile(title, datetime)
	File.join outdir, "#{title}.#{datetime}.#{out_ext}"
end

#make_tmpfile(channel, datetime) ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 187

def make_tmpfile(channel, datetime)
	File.join outdir, "#{channel}.#{datetime}.#{$$}.#{ext}"
end

#open ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 105

def open
end

#out_ext ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 192

def out_ext
	@out_ext || ext
end

#play ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 159

def play
	uri = channel_to_uri
	raise 'not tuned yet.' unless uri
	puts "play: #{uri}"
	create_player(uri).play
end

#record(filename, sec, quiet: false, dt: DateTime.now) ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 122

def record(filename, sec, quiet: false, dt: DateTime.now)
	begin
		uri = channel_to_uri
		raise 'not tuned yet.' unless uri

		puts "record: #{uri}"
		# $stderr.puts "play: #{sec}, #{filename}, #{quiet}"
		player      = create_player uri
		remain_sec  = sec
		rtime       = 0
		minimum_sec = 60   # 残り録音時間がこれ以下ならば、録音が中断してもやり直さない
		datetimes   = []
		begin
			rtime += Benchmark.realtime do
				dt = datetime dt
				datetimes << dt
				tmpfile = make_tmpfile @channel, dt
				player.rec tmpfile, remain_sec, quiet
			end
			remain_sec -= rtime
			dt = DateTime.now
		end while remain_sec >= minimum_sec

	rescue Interrupt, Errno::EPIPE
		# do nothing

	ensure
		# 最後にまとめて convert する
		datetimes.each do |dt|
			tmpfile = make_tmpfile @channel, dt
			recfile = make_recfile(filename, dt)
			convert tmpfile, recfile
		end
	end
end

#tune(channel) ⇒ Object 



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# File 'lib/rbtune/radio.rb', line 112

def tune(channel)
	@channel = channel
end