Class: Renchin::Client

Inherits:
Object
  • Object
show all
Includes:
FileProcessor
Defined in:
lib/renchin/client.rb

Instance Method Summary collapse

Methods included from FileProcessor

#delete_directory, #exists?, #image_directory, #init_file

Instance Method Details

#cgraph(input, output, options = {}) ⇒ Object 



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# File 'lib/renchin/client.rb', line 103

def cgraph(input, output, options={})
  # validate input params
  return false unless exists?(input)

  opts = {
    viewport_w: 100,
    viewport_h: 100,
    duration: 4,
    frame_start: 1,
    frame_end: 10,
    frame_bg: 1,
    overlay_x: nil,
    overlay_y: nil,
    overlay_w: 50,
    overlay_h: 50,
    viewport_x: 0,
    viewport_y: 0,
    debug: 0
  }.merge(options)
  command_path = Renchin.options[:command_path].nil? ? '' : Renchin.options[:command_path]+'/'
  gif_file = input
  result_file = output
  gif_configs = (`identify #{gif_file}`).split("\n")
  viewport_w = opts[:viewport_w] || gif_configs[0].split(" ")[2].split("x")[0]
  viewport_h = opts[:viewport_h] || gif_configs[0].split(" ")[2].split("x")[1]
  speed_current = opts[:duration]
  frame_start = opts[:frame_start]
  frame_stop = opts[:frame_end]
  frame_bg = opts[:frame_bg]
  overlay_x = opts[:overlay_x]
  overlay_y = opts[:overlay_y]
  overlay_w = opts[:overlay_w]
  overlay_h = opts[:overlay_h]
  viewport_x = opts[:viewport_x]
  viewport_y = opts[:viewport_y]
  frames = ""
  offset = 0

  # create dir for output file
  init_file(result_file)

  image_directory_path = image_directory(__method__)
  Dir.chdir("#{image_directory_path}")

  # movie_to_frame
  o1, e1, i1 = Open3.capture3("#{command_path}convert #{gif_file}[#{frame_bg}] #{image_directory_path}/bg.png")
  o2, e2, i2 = Open3.capture3("#{command_path}convert #{gif_file} -repage 0x0 -crop #{overlay_w}x#{overlay_h}+#{overlay_x}+#{overlay_y} +repage #{image_directory_path}/frame.png")

  # frames_to_gif && iterate_frames
  frame_stop = (`identify #{gif_file} | wc -l`).chomp.gsub(/\s/,'').to_i
  for i in frame_start...frame_stop do
    frames = "#{frames} -delay #{speed_current} #{image_directory_path}/frame-out-#{offset}.png"
    o3, e3, i3 = Open3.capture3("#{command_path}convert #{image_directory_path}/bg.png #{image_directory_path}/frame-#{i}.png -geometry +#{overlay_x}+#{overlay_y} -compose over -composite #{image_directory_path}/frame-out-#{offset}.png")
    offset += 1
  end
  o4, e4, i4 = Open3.capture3("#{command_path}convert #{frames} -loop 0 -crop #{viewport_w}x#{viewport_h}+#{viewport_x}+#{viewport_y} -layers Optimize #{result_file}")

  if opts[:debug] == 1
    puts e1, e2, e3, e4
  end

  delete_directory(image_directory_path, "\.(jpg|png)")
  result_file
end

#reverse(input, output, options = {}) ⇒ Object 



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# File 'lib/renchin/client.rb', line 71

def reverse(input, output, options={})
  # validate params
  return false unless exists?(input)

  opts = {
    start: 0,
    _end: 0,
    debug: 0,
    force: ""
  }.merge(options)
  command_path = Renchin.options[:command_path].nil? ? '' : Renchin.options[:command_path]+'/'
  movie_file = input
  result_file = output
  start_sec = opts[:start]
  end_sec = opts[:_end]

  # create dir for output file
  init_file(result_file)

  image_directory_path = image_directory(__method__)
  Dir.chdir("#{image_directory_path}")

  o1, e1, i1 = Open3.capture3("#{command_path}ffmpeg #{opts[:force]} -i #{movie_file} -vf trim=#{start_sec}:#{end_sec},reverse,setpts=PTS-STARTPTS  -an #{result_file}")

  if opts[:debug] == 1
    puts e1
  end

  Dir::rmdir(image_directory_path)
  result_file
end

#sprite(input, output, options = {}) ⇒ Object 



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# File 'lib/renchin/client.rb', line 40

def sprite(input, output, options={})
  # validate params
  return false unless exists?(input)

  opts = {
    cfps: 2,
    debug: 0
  }.merge(options)
  command_path = Renchin.options[:command_path].nil? ? '' : Renchin.options[:command_path]+'/'
  movie_file = input
  result_file = output
  captured_frame_per_sec = opts[:cfps]

  # create dir for output file
  init_file(result_file)

  image_directory_path = image_directory(__method__)
  Dir.chdir("#{image_directory_path}")

  o1, e1, i1 = Open3.capture3("#{command_path}ffmpeg -i #{movie_file} -r #{captured_frame_per_sec} -s qvga -f image2 #{image_directory_path}/renchin-original-%3d.png")
  o2, e2, i2 = Open3.capture3("#{command_path}convert #{image_directory_path}/renchin-original-*.png -quality 30 #{image_directory_path}/renchin-converted-%03d.jpg")
  o3, e3, i3 = Open3.capture3("#{command_path}convert #{image_directory_path}/renchin-converted-*.jpg -append #{result_file}") # if overwrite, use mogrify

  if opts[:debug] == 1
    puts e1, e2, e3
  end

  delete_directory(image_directory_path, "\.(jpg|png)")
  result_file
end

#tlapse(input, output, options = {}) ⇒ Object 



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# File 'lib/renchin/client.rb', line 5

def tlapse(input, output, options={})
  # validate params
  return false unless exists?(input)

  opts = {
    ofps: nil,
    iex: 'png',
    debug: 0,
    force: ''
  }.merge(options)
  command_path = Renchin.options[:command_path].nil? ? '' : Renchin.options[:command_path]+'/'
  movie_file = input
  result_file = output
  output_fps = opts[:ofps] || frame_per_second(60)
  ext = opts[:iex]

  # create dir for output file
  init_file(result_file)

  image_directory_path = image_directory(__method__)
  Dir.chdir("#{image_directory_path}")

  # Split a movie to png images.
  o1, e1, i1 = Open3.capture3("#{command_path}ffmpeg -i #{movie_file} -f image2 #{image_directory_path}/%7d.#{ext}")
  # Generate timelapse movie from frame images.
  o2, e2, i2 = Open3.capture3("#{command_path}ffmpeg #{opts[:force]} -f image2 -r #{output_fps} -i #{image_directory_path}/%7d.#{ext} -r #{output_fps} -an -vcodec libx264 -pix_fmt yuv420p #{result_file}")

  if opts[:debug] == 1
    puts e1, e2
  end

  delete_directory(image_directory_path, "\.#{ext}")
  result_file
end