Method for scheduling an audio treatment of a motor vehicle, and associated operating system

A method for scheduling an audio processing of a motor vehicle, comprising the steps of:

• wherein the audio processing comprises a plurality of elementary functions implemented by a microprocessor, each elementary function comprises at least one input or at least one output and a sample rate generated by a master clock, and a plurality of inputs and outputs, each input and each output comprising a frame size and the sample rate generated by the master clock;
• grouping the elementary functions, the master clocks of which are synchronous, into synchronicity domains;
• calculating a maximum processing time corresponding to a time required to process all frames of the inputs by means of the elementary functions when the inputs and outputs are produced sequentially, and, to return the elementary functions to their initial states;
• and
• determining a scheduling of the elementary functions of each synchronicity domain as a function of the maximum processing time.

An operating system comprising a framework configured to:

• group elementary functions, master clocks of which are synchronous, into synchronicity domains, the elementary functions of an audio processing are implemented by a microprocessor, each elementary function comprises at least one input or at least one output and a sample rate generated by a master clock, and a plurality of inputs and outputs, each input and each output comprising a frame size and the sample rate generated by the master clock;
• calculate a maximum processing time corresponding to a time required to process all frames of the inputs by means of the elementary functions when the inputs and outputs are produced sequentially, and, to return the elementary functions to their initial states;
• and
• determine a scheduling of the elementary functions of each synchronicity domain as a function of the maximum processing time.

The operating system as claimed in claim 13, further comprising:

• a file containing a descriptive graph of the scheduling of the elementary functions;
• a service to interpret the descriptive graph as a function of the inputs and outputs;
• and
• structural components controlled by the service and configured to perform audio processing operations.