How do you synchronize two pipelines that came from the same source, do different processing, and also jump on/off appsrc/appsink
For example
v4l2src -> tee -> queue -> appsink -> (some processing) -> appsrc -> display1 (overlay)
|-> queue -> display1 (overlay)
The processing takes longer in the first pipeline, while the second just waits. How can I ensure data from the same frame is displayed at the same time in spite of the differences in latency?
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