Class: V2av

Inherits:
Object
  • Object
show all
Includes:
WavTool
Defined in:
lib/v2av.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from WavTool

#ogg_to_wav, #wav_concat, #wav_silence

Constructor Details

#initialize(src, srt, working_dir: '/tmp/v2av', debug: false, pollyspeech: {access_key: nil, secret_key: nil, voice_id: 'Amy', cache_filepath: '/tmp/v2av/pollyspeech/cache'}) ⇒ V2av

Returns a new instance of V2av.



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# File 'lib/v2av.rb', line 79

def initialize(src, srt, working_dir: '/tmp/v2av', debug: false, 
    pollyspeech: {access_key: nil, secret_key: nil, voice_id: 'Amy', 
               cache_filepath: '/tmp/v2av/pollyspeech/cache'})

  @source, @working_dir, @debug = src, working_dir, debug

  @steps = srt.lines.map do |x| 
    raw_time, desc = x.chomp.split(/ +/,2)
    OpenStruct.new({time: raw_time.to_i, desc: desc})
  end
  
  s = `exiftool #{src}`
  puts 's: ' + s.inspect if @debug
  #a = s[/Duration.*(\d{1,2}:\d{2}:\d{2})/,1].split(':').map(&:to_i)
  #@duration = Subunit.new(units={minutes:60, hours:60, seconds: 0}, a).to_i
  @duration = s[/Duration.*: (\d+)/,1].to_i        
  puts ('@duration: ' + @duration.inspect).debug if @debug
  
  @steps[0..-2].each.with_index do |x, i|
    x.duration = @steps[i+1].time - x.time
  end
  
  @steps.last.duration = @duration - @steps.last.time    

  @pollyspeech = PollySpeech.new(pollyspeech) if pollyspeech[:access_key]
  
end

Instance Attribute Details

#duration ⇒ Object

Returns the value of attribute duration.



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# File 'lib/v2av.rb', line 77

def duration
  @duration
end

#steps ⇒ Object

Returns the value of attribute steps.



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# File 'lib/v2av.rb', line 77

def steps
  @steps
end

Instance Method Details

#build(destination) ⇒ Object 



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# File 'lib/v2av.rb', line 107

def build(destination)

  if block_given? then

    yield(self)

  else

    dir = File.dirname(@source)
    file = File.basename(@source)      
    
    vid2 = File.join(@working_dir, file.sub(/\.mp4$/,'b\0'))
    trim_video @source, vid2

    vid3 = File.join(@working_dir, file.sub(/\.mp4$/,'c.avi'))

    generate_audio
    add_audio_track File.join(@working_dir, 'audio.wav'), vid2, vid3
    
    vid4 = File.join(dir, file.sub(/\.avi$/,'d\0'))
    resize_video vid3, vid4
    
    vid5 = File.join(dir, file.sub(/\.mp4$/,'e\0'))
    transcode_video(vid4, vid5)
    add_subtitles(vid5, destination)    

  end

end