Sha256: e925880fa44f5d4f21f55412206a587d834b45d0bc240732343dd6e32592ef0e
Contents?: true
Size: 736 Bytes
Versions: 10
Compression:
Stored size: 736 Bytes
Contents
require 'mp3info'
require 'pathname'
require 'riff/reader'
module Scissor
class SoundFile
SUPPORTED_FORMATS = %w/mp3 wav/
class Error < StandardError; end
class UnknownFormat < Error; end
def initialize(filename)
@filename = Pathname.new(filename)
@ext = @filename.extname.sub(/^\./, '').downcase
unless SUPPORTED_FORMATS.include?(@ext)
raise UnknownFormat
end
end
def length
case @ext
when 'mp3'
Mp3Info.new(@filename).length
when 'wav'
riff = Riff::Reader.open(@filename ,"r")
data = riff.root_chunk['data']
fmt = riff.root_chunk['fmt ']
data.length / fmt.body.unpack('s2i2')[3].to_f
end
end
end
end
Version data entries
10 entries across 10 versions & 2 rubygems