Class: Yamdi

Inherits:
Object
  • Object
show all
Defined in:
lib/yamdi.rb

Instance Method Summary collapse

Constructor Details

#initialize(flv_path) ⇒ Yamdi

Returns a new instance of Yamdi.



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# File 'lib/yamdi.rb', line 6

def initialize(flv_path)
  @metadata = Nokogiri.parse( parse(flv_path) )
end

Instance Method Details

#audio_codec_id ⇒ Object 



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# File 'lib/yamdi.rb', line 46

def audio_codec_id
  @metadata.xpath("//audiocodecid").inner_text.to_i
end

#audio_data_rate ⇒ Object 



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# File 'lib/yamdi.rb', line 54

def audio_data_rate
  @metadata.xpath("//audiodatarate").inner_text.to_i
end

#audio_delay ⇒ Object 



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# File 'lib/yamdi.rb', line 62

def audio_delay
  @metadata.xpath("//audiodelay").inner_text.to_f
end

#audio_sample_rate ⇒ Object 



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# File 'lib/yamdi.rb', line 50

def audio_sample_rate
  @metadata.xpath("//audiosamplerate").inner_text.to_i
end

#audio_sample_size ⇒ Object 



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# File 'lib/yamdi.rb', line 58

def audio_sample_size
  @metadata.xpath("//audiosamplesize").inner_text.to_i
end

#audio_size ⇒ Object 



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# File 'lib/yamdi.rb', line 94

def audio_size
  @metadata.xpath("//audiosize").inner_text.to_i
end

#can_seek_to_end? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/yamdi.rb', line 42

def can_seek_to_end?
  boolean @metadata.xpath("//canSeekToEnd").inner_text
end

#data_size ⇒ Object 



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# File 'lib/yamdi.rb', line 90

def data_size
  @metadata.xpath("//datasize").inner_text.to_i
end

#duration ⇒ Object 



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# File 'lib/yamdi.rb', line 18

def duration
  @metadata.xpath("//duration").inner_text.to_f
end

#file_size ⇒ Object 



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# File 'lib/yamdi.rb', line 102

def file_size
  @metadata.xpath("//filesize").inner_text.to_i
end

#frame_rate ⇒ Object 



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# File 'lib/yamdi.rb', line 74

def frame_rate
  @metadata.xpath("//framerate").inner_text.to_f
end

#has_audio? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/yamdi.rb', line 30

def has_audio?
  boolean @metadata.xpath("//hasAudio").inner_text
end

#has_cue_points? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/yamdi.rb', line 38

def has_cue_points?
  boolean @metadata.xpath("//hasCuePoints").inner_text
end

#has_keyframes? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/yamdi.rb', line 22

def has_keyframes?
  boolean @metadata.xpath("//hasKeyframes").inner_text
end

#has_metadata? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/yamdi.rb', line 34

def has_metadata?
  boolean @metadata.xpath("//hasMetadata").inner_text
end

#has_video? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/yamdi.rb', line 26

def has_video?
  boolean @metadata.xpath("//hasVideo").inner_text
end

#height ⇒ Object 



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# File 'lib/yamdi.rb', line 82

def height
  @metadata.xpath("//height").inner_text.to_i
end

#key_frames ⇒ Object 



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# File 'lib/yamdi.rb', line 122

def key_frames
  times_data_xml = @metadata.xpath("//keyframes/times/value")
  times = []
  times_data_xml.children.each do |el|
    times << el.inner_text.to_f
  end
  
  file_positions_xml = @metadata.xpath("//keyframes/filepositions/value")
  file_positions = []
  file_positions_xml.children.each do |el|
    file_positions << el.inner_text.to_i
  end
  
  count = 0
  key_frames = []
  while count < times.size do
    key_frames << OpenStruct.new(:time => times[count], :file_position => file_positions[count])
    count = count + 1
  end
  
  key_frames
end

#last_key_frame_location ⇒ Object 



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# File 'lib/yamdi.rb', line 118

def last_key_frame_location
  @metadata.xpath("//lastkeyframelocation").inner_text.to_i
end

#last_key_frame_timestamp ⇒ Object 



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# File 'lib/yamdi.rb', line 114

def last_key_frame_timestamp
  @metadata.xpath("//lastkeyframetimestamp").inner_text.to_f
end

#last_timestamp ⇒ Object 



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# File 'lib/yamdi.rb', line 106

def last_timestamp
  @metadata.xpath("//lasttimestamp").inner_text.to_f
end

#last_video_frame_timestamp ⇒ Object 



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# File 'lib/yamdi.rb', line 110

def last_video_frame_timestamp
  @metadata.xpath("//lastvideoframetimestamp").inner_text.to_f
end

#parse(flv_path) ⇒ Object 



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# File 'lib/yamdi.rb', line 10

def parse(flv_path)
  temp_file = Tempfile.new('yamdi_tmp')
  `yamdi -i #{flv_path} -x #{temp_file.path}`
  contents = temp_file.read
  temp_file.close
  contents
end

#stereo? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/yamdi.rb', line 66

def stereo?
  boolean @metadata.xpath("//stereo").inner_text
end

#video_codec_id ⇒ Object 



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# File 'lib/yamdi.rb', line 70

def video_codec_id
  @metadata.xpath("//videocodecid").inner_text.to_i
end

#video_data_rate ⇒ Object 



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# File 'lib/yamdi.rb', line 78

def video_data_rate
  @metadata.xpath("//videodatarate").inner_text.to_i
end

#video_size ⇒ Object 



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# File 'lib/yamdi.rb', line 98

def video_size
  @metadata.xpath("//videosize").inner_text.to_i
end

#width ⇒ Object 



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# File 'lib/yamdi.rb', line 86

def width
  @metadata.xpath("//width").inner_text.to_i
end