Class: VCSRuby::MPlayer

Inherits:
Capturer show all
Defined in:
lib/MPlayer/mplayer.rb

Constant Summary collapse

HEADER = 
2

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Capturer

create, #format, #format=, #format_extension, initialize_capturers

Constructor Details

#initialize(video) ⇒ MPlayer

Returns a new instance of MPlayer.



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# File 'lib/MPlayer/mplayer.rb', line 14

def initialize video
  @video = video
  @mplayer = Command.new :mplayer, 'mplayer'

  detect_version if available?
end

Instance Attribute Details

#audio_streams ⇒ Object (readonly)

Returns the value of attribute audio_streams.



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# File 'lib/MPlayer/mplayer.rb', line 13

def audio_streams
  @audio_streams
end

#info ⇒ Object (readonly)

Returns the value of attribute info.



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# File 'lib/MPlayer/mplayer.rb', line 13

def info
  @info
end

#video_streams ⇒ Object (readonly)

Returns the value of attribute video_streams.



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# File 'lib/MPlayer/mplayer.rb', line 13

def video_streams
  @video_streams
end

Instance Method Details

#available? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/MPlayer/mplayer.rb', line 29

def available?
  @mplayer.available?
end

#available_formats ⇒ Object 



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# File 'lib/MPlayer/mplayer.rb', line 44

def available_formats
  # Ordered by priority
  image_formats = ['png', 'jpeg']
  formats = []

  list = @mplayer.execute("-vo help", 0, true)
  list.lines.drop(HEADER).each do |codec|
    name = format_split(codec)
    formats << name if image_formats.include?(name)
  end

  image_formats.select{ |format| formats.include?(format) }.map(&:to_sym)
end

#detect_version ⇒ Object 



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# File 'lib/MPlayer/mplayer.rb', line 33

def detect_version
  info = @mplayer.execute('')
  match = /MPlayer (.*),/.match(info)
  @version = match[1] if match
end

#file_valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/MPlayer/mplayer.rb', line 21

def file_valid?
  return probe_meta_information
end

#grab(time, image_path) ⇒ Object 



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# File 'lib/MPlayer/mplayer.rb', line 39

def grab time, image_path
  @mplayer.execute "-vo png -ss #{time.total_seconds} -endpos 0 \"#{@video.full_path}\""
  FileUtils.mv(file_pattern(1), image_path)
end

#name ⇒ Object 



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# File 'lib/MPlayer/mplayer.rb', line 25

def name
  :mplayer
end

#to_s ⇒ Object 



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# File 'lib/MPlayer/mplayer.rb', line 58

def to_s
  "MPlayer #{@version}"
end