Fix exceptions and crashes when including None in a PluginContainer.

spotify / pedalboard

🎛 🔊 A Python library for audio.

https://spotify.github.io/pedalboard

GNU General Public License v3.0

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Fix exceptions and crashes when including None in a PluginContainer. #140

Closed psobot closed 2 years ago

psobot commented 2 years ago

This PR makes it possible to pass None as a plugin to a Chain([...]), Mix([...]), or Pedalboard([...]) without crashing or throwing exceptions at processing time. None acts as a dummy pass-through plugin, imparting no latency and passing input directly to output.