Module: Bagel::Video::FFMPEG

Defined in:
lib/bagel/video/ffmpeg.rb,
lib/bagel/video/ffmpeg/concat_file.rb,
lib/bagel/video/ffmpeg/fade_filter.rb,
lib/bagel/video/ffmpeg/overlay_filter.rb

Defined Under Namespace

Classes: ConcatFile, FadeFilter, OverlayFilter

Constant Summary collapse

INDEX_VIDEO = 
0
LABEL_VIDEO = 
'v'
LABEL_OVERLAY = 
'o'

Class Method Summary collapse

Class Method Details

.concat(source:, destination:, transcode: false) ⇒ Object 



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# File 'lib/bagel/video/ffmpeg.rb', line 9

def self.concat(source:, destination:, transcode: false)
  ConcatFile.create(source) do |path|
    command = "ffmpeg -y -f concat -safe 0"
    command << " -i #{path}"
    command << " -c copy" unless transcode
    command << " #{destination}"
    system(command)
  end
end

.filter(inputs:, filters:, destination:) ⇒ Object 



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# File 'lib/bagel/video/ffmpeg.rb', line 29

def self.filter(inputs:, filters:, destination:)
  inputs = inputs.map { |input| "-i #{input} -loop 1" }.join(' ')
  filters = filters.join(';')

  command = "ffmpeg -y"
  command << " #{inputs}"
  command << " -filter_complex \"#{filters}\""
  command << " -c:a copy"
  command << " #{destination}"
  system(command)
end

.trim(start:, source:, duration:, transcode: false, destination:) ⇒ Object 



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# File 'lib/bagel/video/ffmpeg.rb', line 19

def self.trim(start:, source:, duration:, transcode: false, destination:)
  command = "ffmpeg -y"
  command << " -ss #{start}"
  command << " -i #{source}"
  command << " -to #{duration}"
  command << " -c copy" unless transcode
  command << " -avoid_negative_ts make_zero #{destination}"
  system(command)
end