[ Version ( since = "1.10" ) ]
public Event.stream_collection (StreamCollection collection)
Create a new STREAM_COLLECTION event.
The stream collection event can only travel downstream synchronized with the buffer flow.
Source elements, demuxers and other elements that manage collections of streams and post StreamCollection messages on the bus also send this event downstream on each pad involved in the collection, so that activation of a new collection can be tracked through the downstream data flow.
Active collection for this data flow
the new STREAM_COLLECTION event.