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Extensible kernel-mode audio processing architecture

  • US 7,673,306 B2
  • Filed: 08/19/2005
  • Issued: 03/02/2010
  • Est. Priority Date: 04/12/2000
  • Status: Expired due to Fees
First Claim
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1. A computer-readable medium having stored thereon a data structure, the data structure comprising:

  • a presentation time portion indicating when audio data is to be rendered;

    a data portion that can include audio data, a pointer to a data buffer, or a pointer to a chain of additional data structures that include the audio data;

    an event byte count portion that identifies whether the data portion includes the audio data or the pointer to the data buffer; and

    a flag portion that is set to indicate to a kernel-mode transform filter that the data portion includes the pointer to the chain of additional data structures rather than the audio data or the pointer to the data buffer.

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