Class: MediaInfoNative::StreamProxy

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/mediainfo-native/mediainfo.rb

Constant Summary collapse

SingleStreamAPIError = 
Class.new(RuntimeError)
NoStreamsForProxyError = 
Class.new(NoMethodError)
UnknownAttributeError = 
Class.new(NoMethodError)

Instance Method Summary collapse

Constructor Details

#initialize(streams) ⇒ StreamProxy

Returns a new instance of StreamProxy.



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# File 'lib/mediainfo-native/mediainfo.rb', line 40

def initialize(streams)    
  @streams = streams
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(m, *a, &b) ⇒ Object 



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# File 'lib/mediainfo-native/mediainfo.rb', line 70

def method_missing(m, *a, &b)
  case @streams.size
  when 0
    raise NoStreamsForProxyError
  when 1
    if @streams.first.respond_to?(m)
      @streams.first.send(m, *a, &b)
    else
      raise UnknownAttributeError
    end
  else
    raise SingleStreamAPIError
  end
end

Instance Method Details

#[](idx) ⇒ Object 



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# File 'lib/mediainfo-native/mediainfo.rb', line 48

def [](idx); @streams[idx]; end

#count ⇒ Object 



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# File 'lib/mediainfo-native/mediainfo.rb', line 49

def count; @streams.size; end

#each(&blk) ⇒ Object 



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# File 'lib/mediainfo-native/mediainfo.rb', line 51

def each(&blk)
  @streams.each(&blk)
end

#respond_to?(meth, include_all = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mediainfo-native/mediainfo.rb', line 55

def respond_to?(meth, include_all = false)
  begin
    case @streams.size
    when 0
      false
    when 1
      @streams.first.respond_to?(meth, include_all)
    when [:[], :count].include?(meth)
      true
    else
      raise SingleStreamAPIError
    end
  end || super
end