Class: Ffmprb::Process::Input::Paced

Inherits:
ChainBase show all
Defined in:
lib/ffmprb/process/input/paced.rb

Instance Attribute Summary collapse

Attributes inherited from Ffmprb::Process::Input

#io, #process

Instance Method Summary collapse

Methods inherited from ChainBase

#chain_copy, #unfiltered, #unfiltered=

Methods inherited from Ffmprb::Process::Input

#args, #audio, audio_args, #chain_copy, #channel, #channel?, #copy, #crop, #cut, #loop, #mute, #pace, #pp, resolve, #reverse, #temporise_io!, #video, video_args, #volume

Constructor Details

#initialize(unfiltered, pace:) ⇒ Paced 



16
17
18
19
 
# File 'lib/ffmprb/process/input/paced.rb', line 16

def initialize(unfiltered, pace:)
  super unfiltered
  @ratio = pace
end

Instance Attribute Details

#ratio ⇒ Object (readonly)

Returns the value of attribute ratio.



14
15
16
 
# File 'lib/ffmprb/process/input/paced.rb', line 14

def ratio
  @ratio
end

Instance Method Details

#filters_for(lbl, video:, audio:) ⇒ Object 



21
22
23
24
25
26
27
28
29
30
31
32
33
 
# File 'lib/ffmprb/process/input/paced.rb', line 21

def filters_for(lbl, video:, audio:)
  fail Error, "pacing requires fps"  unless
    video.fps

  # Pacing

  lbl_aux = "pc#{lbl}"
  super(lbl_aux, video: video, audio: audio) +
    [
      *((video && channel?(:video))? Filter.setpts_framerate(@ratio, video.fps, "#{lbl_aux}:v", "#{lbl}:v"): nil),
      *((audio && channel?(:audio))? Filter.atempo(@ratio, "#{lbl_aux}:a", "#{lbl}:a"): nil)
    ]
end