Brew MP 1.0.2
This function returns the Vfs Root node.
In a multiheaded trigplayer:
returns the Vfs root node of the first created head in a player.
If the first created head was closed, it will return the Vfs Root node
of the next available split head. The returned interface is AddRef'ed.
Note: a multiheaded trigplayer is a player that contains splits heads.
pointer to the IActorContext interface object
[out] Address at which to store a pointer to the root Vfs node.