Module: AudioFile

Defined in:
lib/bbcnet.rb

Class Method Summary collapse

Class Method Details

.getDuration(file) ⇒ Object

return seconds of audio file duration.



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# File 'lib/bbcnet.rb', line 233

def self.getDuration(file)
    return 0 unless File.exist?(file)

    case file[/\.\w+$/].downcase
    when ".mp3"
        cmd = "| exiftool -S -Duration %s" % file.shellescape
    when ".wma"
        cmd = "| exiftool -S -PlayDuration %s" % file.shellescape
    end
    msg = open(cmd) do |f| f.read end
    a = msg.scan(/(?:(\d+):){0,2}(\d+)/)[0]
    return 0 unless a
    i = -1
    a.reverse.inject(0) do |s, d|
        i += 1
        s + d.to_i * [ 1, 60, 3600 ][i]
    end
end