GStreamer : Bin

-  GStreamer : Bin -

A bin is a container for a collection of element. A pipeline is a special subtype of a bin that allows  execution of all of its contained child element. Since bins are sub-classes of elements themselves, you can mostly control a bin as if it were an element thereby abstracting away a lot of complexity for your application. You can, for example, change state on all elements in a bin by changing the state of that bin itself. Bins also forward bus messages from their contained children(such as error message, tag messages or EOS messages).

A pipeline is a top-level bin. As you set it to PAUSE or PLAYING state, data flow will start and media processing will take place. One started pipeline will run in a separate thread until you stop them or the end of the data is reached.