Class: Lolcommits::CaptureLinux

Inherits:
Capturer
  • Object
show all
Defined in:
lib/lolcommits/capture_linux.rb

Instance Attribute Summary

Attributes inherited from Capturer

#capture_delay, #capture_device, #font, #snapshot_location

Instance Method Summary collapse

Methods inherited from Capturer

#initialize

Constructor Details

This class inherits a constructor from Lolcommits::Capturer

Instance Method Details

#capture ⇒ Object 



3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
# File 'lib/lolcommits/capture_linux.rb', line 3

def capture
  debug "LinuxCapturer: making tmp directory"
  tmpdir = Dir.mktmpdir

  # There's no way to give a capture delay in mplayer, but a number of frame
  # I've found that 6 is a good value for me.
  frames = if capture_delay != 0 then capture_delay else 6 end

  debug "LinuxCapturer: calling out to mplayer to capture image"
  # mplayer's output is ugly and useless, let's throw it away
  _, r, _ = Open3.popen3("mplayer -vo jpeg:outdir=#{tmpdir} -frames #{frames} tv://")
  # looks like we still need to read the output for something to happen
  r.read

  # the below SHOULD tell FileUtils actions to post their output if we are in debug mode
  include FileUtils::Verbose if logger.level == 0

  debug "LinuxCapturer: calling out to mplayer to capture image"
  FileUtils.mv(tmpdir + "/%08d.jpg" % frames, snapshot_location)
  debug "LinuxCapturer: cleaning up"
  FileUtils.rm_rf( tmpdir )
end