Class: Libis::Format::Tool::FFMpeg

Inherits:
Object
  • Object
show all
Includes:
Tools::Logger, Singleton
Defined in:
lib/libis/format/tool/ff_mpeg.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.installed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/libis/format/tool/ff_mpeg.rb', line 17

def self.installed?
  result = Libis::Tools::Command.run(Libis::Format::Config[:ffmpeg_cmd], '-h')
  (result[:status]).zero?
end

.run(source, target, options = {}) ⇒ Object 



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# File 'lib/libis/format/tool/ff_mpeg.rb', line 22

def self.run(source, target, options = {})
  instance.run source, target, options
end

Instance Method Details

#run(source, target, options = {}) ⇒ Object 



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# File 'lib/libis/format/tool/ff_mpeg.rb', line 26

def run(source, target, options = {})
  opts = []
  opts += options[:global] unless options[:global].empty?
  opts += options[:input] unless options[:input].empty?
  opts << '-i' << source
  opts += options[:filter] unless options[:filter].empty?
  opts += options[:output] unless options[:output].empty?
  opts << target

  timeout = Libis::Format::Config[:timeouts][:ffmpeg]
  result = Libis::Tools::Command.run(
    Libis::Format::Config[:ffmpeg_cmd], *opts,
    timeout:,
    kill_after: timeout * 2
  )

  raise "#{self.class} took too long (> #{timeout} seconds) to complete" if result[:timeout]
  raise "#{self.class} errors: #{result[:err].join("\n")}" unless (result[:status]).zero?

  warn "FFMpeg warnings: #{(result[:err] + result[:out]).join("\n")}" unless result[:err].empty?

  {
    command: result,
    files: [target]
  }
end