Membrane.EventProtocol.async-question-mark
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async-question-mark, go back to Membrane.EventProtocol module for more information.
Specs
Determines whether event is synchronized with buffers (sync) or not (async). Defaults to false (sync).
Buffers and sync events are always received in the same order they are
sent. Async events are handled before any enqueued buffers that are waiting to
be processed (e.g. in Membrane.InputBuffer).