Right now, when I stack videos vertically, I output the Tractor and the Profile: "tuple[tr:Tractor; p:Profile] " proc stackVertically*( v1,v2:Producer ):tuple[tr:Tractor; p:Profile]
Later I apply the returned profile to the consumer: # Call the function to stack vertically two videos. # The tractor and new profile are returned var (newProducer, profile) = stackVertically( v1, v2 ) # Consumer using the new calculated profile var sdl = profile.newFactoryConsumer( "sdl2" ) sdl["terminate_on_pause"] = 1 # From tractor to SDL2 newProducer > sdl What I would like to do is to apply the profile to the tractor. Like moving the consumer within the stackVertically function and then using that consumer as a producer. I see that there is this plugin to use a consumer as a producer: https://www.mltframework.org/plugins/ProducerConsumer/ but it is not very clear how I should use it and if it is appropriate for this purpose. On the other hand, I wonder if I should get the producer from the tractor and set "width", "height", "aspect_ratio". I am trying this last option without success. Any suggestion is welcomed.
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