Handling of input or output (I/O) to or from a media device may be implemented in a system having a memory, a processor unit with a main processor and an auxiliary processor having an associated local memory, and the media device. An incoming I/O request received from an application running on the processor unit may be serviced according to the schedule. A set of processor executable instructions configured to implement I/O handling may include media filter layers. I/O handling may alternatively comprise: receiving an incoming I/O request from an application running on a main processor; inserting the request into a schedule embodied in the main memory; and implementing the request according to the schedule and one or more filters, at least one of which is implemented by an auxiliary processor.