Systems and methods for generating and managing filter strings in a filter graph utilizing a matrix switch

• US 7,350,216 B2
• Filed: 10/05/2004
• Issued: 03/25/2008
• Est. Priority Date: 12/06/2000
• Status: Expired due to Fees

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Rudolph, Eric H., Miller, Daniel J.
• Primary Examiner(s): Nguyen; Van H.
• Application Number:
  US10/959,012
• Publication Number:
  US 20050060713A1
• Time in Patent Office: 1,267 Days
• Field of Search: 719/321, 719/322, 719/328, 715/716, 715/719, 715/723, 715/726
• US Class Current: 719/322
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence

Abstract

Systems and methods load one or more source processing chains to support execution of a development project and determine whether each of the one or more processing chains will be subsequently required during execution of this or another development project. If one or more processing chains are needed, each is cached for subsequent use. The source processing chains are coupled with a matrix switch comprising a scalable plurality of inputs and a scalable plurality of outputs, wherein any one or more of the inputs may be iteratively coupled to any one or more of the outputs. Media is processed using the source processing chain(s) and the matrix switch to produce at least one development project.

Claims

1. A method comprising:

loading one or more source processing chains to support execution of a development project, wherein loading of the one or more processing chains comprises;

identifying which source(s) will be required to support execution of the next M seconds of the development project;

searching one or more cache(s) to determine whether the source processing chain(s) associated with the source(s) are available within the one or more cache(s); and

retrieving the one or more processing chains from a memory location denoted by an associated one or more pointers in the cache for integration with the development project;

determining whether each of the one or more processing chains will be subsequently required during execution of this or another development project and, if so, caching those filter chains which will be subsequently required;

coupling said one or more source processing chains with a matrix switch comprising a scalable plurality of inputs and a scalable plurality of outputs, wherein any one or more of the inputs are iteratively coupled to any one or more of the outputs; and

processing media using said one or more source processing chains and said matrix switch to produce at least one development project.

2. A method according to claim 1, further comprising:

determining whether processing chain(s) retrieved from the cache(s) satisfy processing requirements of the development project; and

modifying one or more objects of one or more of the processing chain(s) retrieved from the cache(s) that do not satisfy the processing requirements of the development project.

3. A method according to claim 2, wherein modifying one or more objects may comprise one or more of adding processing objects to the processing chain(s), removing one or more processing objects from the processing chain(s), or changing one or more operating attributes of one or more processing objects within the processing chain(s).

4. A method according to claim 1, wherein M is at least as long as necessary to construct a processing chain.