Filter/controller callbacks in an embedded audio layer

A filter/controller (FC) configured for integration with an embedded audio layer (EAL) comprising:

• an entry routine for managing registration and unregistration of the FC;
• a registration routine for registering the FC with the EAL;
• an unregistration routine for un-registering the FC with the EAL;
• and,
• an FC callback for performing one of modifying audio data and modifying audio device behavior.

A method for configuring an embedded audio layer (EAL) to automatically modify audio data and audio device behavior comprising:

• receiving a filter/controller (FC) reference in the EAL;
• searching a filter/controller linked list for said FC reference;
• and,
• if said FC reference is not found in said filter/controller linked list, inserting a reference to said FC in said filter/controller linked list, said inserted reference comprising at least pointer to a callback associated with said FC.

A method for automatically modifying audio data and audio device behavior comprising:

• (a) loading a buffer with audio data;
• (b) retrieving a filter/controller (FC) from a filter/controller linked list in an embedded audio layer (EAL);
• (c) executing an FC callback associated with said retrieved FC;
• and,
• (d) repeating steps (b) and (c) for each FC in said filter controller linked list.

A machine readable storage, having stored thereon a computer program for configuring an embedded audio layer (EAL) to automatically modify audio data and audio device behavior, said computer program having a plurality of code sections executable by a machine for causing the machine to perform the steps of:

• receiving a filter/controller (FC) reference in the EAL;
• searching a filter/controller linked list for said FC reference;
• and,
• if said FC reference is not found in said filter/controller linked list, inserting a reference to said FC in said filter/controller linked list, said inserted reference comprising at least pointer to a callback associated with said FC.

A machine readable storage, having stored thereon a computer program for automatically modifying audio data and audio device behavior, said computer program having a plurality of code sections executable by a machine for causing the machine to perform the steps of:

• (a) loading a buffer with audio data;
• (b) retrieving a filter/controller (FC) from a filter/controller linked list in an embedded audio layer (EAL);
• (c) executing an FC callback associated with said retrieved FC;
• and,
• (d) repeating steps (b) and (c) for each FC in said filter controller linked list.