Passing in stream file results in Bad file descriptor

[turboladen]

I have a cuke test that, when extracting from steps, looks something like:

def save_streamed_file(file_to_save, save_to_directory)
  capture_dir = File.expand_path(save_to_directory)

  unless File.directory? capture_dir
    FileUtils.mkdir capture_dir
  end

  FileUtils.cp(file_to_save, capture_dir)
end

@streamed_file = Tempfile.new("sarix_streamed_file")
rtsp_url = "#{@sarix.ip_address}#{@sarix.rtsp_stream_path}"

@rtsp_client = RTSP::Client.new(rtsp_url) do |connection, capturer|
  capturer.rtp_file = @streamed_file
end

@rtsp_client.describe
@rtsp_client.setup(@rtsp_client.media_control_tracks.first)

begin
  @rtsp_client.play(@rtsp_client.aggregate_control_track)
  @logger.debug "Starting stream capturing for #{duration} second(s)..."
  sleep duration.to_i
ensure
  @logger.debug "Tearing down RTSP stream..."
  @rtsp_client.teardown(@rtsp_client.aggregate_control_track)
end

if @config[:save_capture_to_file]
  save_streamed_file(@streamed_file, @config[:capture_directory])
end

Running this returns:

[Sep 19 13:14:06]:ERROR:       Bad file descriptor (Errno::EBADF)
[Sep 19 13:14:06]:ERROR:       /Users/sloveless/.rvm/gems/ruby-1.9.2-p290/gems/rtsp-0.1.2/lib/rtsp/capturer.rb:77:in `recvfrom'
[Sep 19 13:14:06]:ERROR:       /Users/sloveless/.rvm/gems/ruby-1.9.2-p290/gems/rtsp-0.1.2/lib/rtsp/capturer.rb:77:in `run'
[Sep 19 13:14:06]:ERROR:       /Users/sloveless/.rvm/gems/ruby-1.9.2-p290/gems/rtsp-0.1.2/lib/rtsp/client.rb:297:in `block (2 levels) in play'

[turboladen]

I can't recreate this. Also, it doesn't seem like this is the fault of rtsp, but rather the saving logic.