Method for chaining media processing

A method, comprising:

• issuing, by an application processor, a plurality of media commands to a queue;
• retrieving, by a media managing circuit, a first media command of the plurality of media commands from the queue;
• setting, by the media managing circuit, a direct memory access circuit (DMA) to copy data associated with the first media command from a particular storage location to a first media circuit;
• sending the first media command to a first media circuit for execution;
• while the first media command is being executed by the first media circuit:
• retrieving, by the media managing circuit, a second media command of the plurality of media commands from the queue;
• determining, by the media managing circuit, that the second media command utilizes data that is dependent on a completion of the first media command;
• and
• setting, by the media managing circuit, the DMA to copy data from the first media circuit to a second media circuit;
• asserting, by the first media circuit, an interrupt indicating that execution of the first media command has completed;
• and
• sending, by the media managing circuit, the second media command to the second media circuit.

An apparatus, comprising:

• a memory;
• a direct memory access circuit (DMA) configured to copy data between different storage locations based on current settings;
• and
• a media processor configured to:
• retrieve a first media command of a plurality of media commands stored, by a host processor, in a queue in the memory;
• set the DMA to copy data associated with the first media command from a particular storage location to a first media circuit;
• send the first media command to the first media circuit for execution;
• while the first media command is being executed by the first media circuit:
• retrieve a second media command of the plurality of media commands from the queue;
• determine that the second media command utilizes data that is dependent on a completion of the first media command;
• and
• set the DMA to copy data from the first media circuit to a second media circuit;
• and
• in response to an assertion of an interrupt by the first media circuit indicating that the first media circuit has completed the first media command, send the second media command to the second media circuit.