Static TASK_POOL_CONTEXT_TYPE Copy item path

The well-known context type for sharing a TaskPool between elements in a pipeline.

Elements that support this context will post a GST_MESSAGE_NEED_CONTEXT message on the bus when they need a task pool. Applications can respond by setting the context on the element or the pipeline. Elements will not query neighbors for this context type as the task pool is optional and elements will fall back to their default behavior if no pool is provided.