Queue, Tee, and Multithreading

Basic Concepts

2.5 Queue, Tee, and Multithreading

tee duplicates one data stream into multiple branches, while queue creates a separate thread and buffer for each branch.

gst-launch-1.0 videotestsrc \
  ! tee name=t \
  t. ! queue ! autovideosink \
  t. ! queue ! fakesink

A queue should normally be added to every branch. Otherwise, if any branch blocks, the entire pipeline may stop.