Class: FLV::Edit::Processor::Join

Inherits:
Base
  • Object
show all
Includes:
Dispatcher
Defined in:
lib/flvedit/processor/join.rb

Overview

Join is a Processor class (see Base and desc)

Constant Summary

Constants included from Dispatcher

Dispatcher::ALL_EVENTS, Dispatcher::EVENT_TRIGGER, Dispatcher::EVENT_TRIGGER_LIST, Dispatcher::MAIN_EVENTS

Instance Attribute Summary

Attributes inherited from Base

#options

Instance Method Summary collapse

Methods included from Dispatcher

#absorb, #dispatch_instead, included, #initialize, #stop

Methods inherited from Base

#clone, #each_source, #initialize, #process_all

Instance Method Details

#each(&block) ⇒ Object 



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# File 'lib/flvedit/processor/join.rb', line 17

def each(&block)
  return to_enum unless block_given?
  each_source_without_join { super }
end

#each_source_with_join ⇒ Object 



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# File 'lib/flvedit/processor/join.rb', line 11

def each_source_with_join
  return to_enum(:each_source) unless block_given?
  yield
end

#on_header(h) ⇒ Object 



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# File 'lib/flvedit/processor/join.rb', line 42

def on_header(h)
  if is_first_header = !@delta
    @delta = 0
    @wait_for_keyframe = false
    @last_video_timestamp = 0
  else
    if @last_video_timestamp
      last_interval = @last_video_timestamp - @next_to_last_video_timestamp
      @delta += [@last_video_timestamp + last_interval, @last_timestamp].max
      @wait_for_keyframe = true
    else
      @delta += @last_timestamp
    end
    dispatch_instead(Tag.new(@delta, evt = Event.new(:onNextSegment, :file => ::File.basename(h.path))))
  end
end

#on_keyframe(tag) ⇒ Object 



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# File 'lib/flvedit/processor/join.rb', line 35

def on_keyframe(tag)
  if @wait_for_keyframe
    @wait_for_keyframe = false
    @delta -= tag.timestamp
  end
end

#on_tag(tag) ⇒ Object 



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# File 'lib/flvedit/processor/join.rb', line 22

def on_tag(tag)
  if @wait_for_keyframe
    absorb
  else
    @last_timestamp = tag.timestamp
    tag.timestamp += @delta
  end
end

#on_video(tag) ⇒ Object 



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# File 'lib/flvedit/processor/join.rb', line 31

def on_video(tag)
  @next_to_last_video_timestamp, @last_video_timestamp = @last_video_timestamp, tag.timestamp
end