Interface and related methods for dynamically generating a filter graph in a development system

• US 20050262514A1
• Filed: 07/29/2005
• Published: 11/24/2005
• Est. Priority Date: 12/06/2000
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Rudolph, Eric H., Miller, Daniel J.
• Granted Patent: US 7,584,479 B2
• Time in Patent Office: Days
• US Class Current: 719/310
• CPC Class Codes: G06F 8/00 Arrangements for software engineering testing or debugging G06F11/36; administrative, planning or organisation aspects of software project management G06Q10/06
• CPC Class Codes: G06F 8/20 Software design

Abstract

A system is presented including a plurality of sources, and an interface, selectively coupled to the plurality of sources, to generate and implement a development project of processing chains, wherein the interface dynamically loads a processing chain for each of the plurality of media sources at a point during the execution of the project when the chain is required, and wherein the interface is configured to unload at least a subset of the chains when they are not required.

Claims

1. A system comprising:

one or more software-enabled matrix switches, individual matrix switches comprising a scalable plurality of inputs, dynamically coupled to media source(s) to receive media content and a scalable plurality of outputs, dynamically coupled to object(s), wherein the software-enabled matrix switches are configured to route media content through the object(s) to manipulate the received media content in accordance with a media processing project; and

an interface, selectively coupled to a plurality of media sources, to generate and implement the media processing project by using processing chains of objects, wherein the interface loads a processing chain for each of the plurality of media sources at a point during the execution of the project when the chain is required, and wherein the interface is configured to unload at least a subset of the chains when they are not required.

2. A system according to claim 1, wherein the scalable plurality of inputs are implemented as software objects configured to communicate information from a software object to individual switches.

3. A system according to claim 1, wherein one or more of the software-enabled, matrix switches further comprises:

a memory space, shared among the plurality of inputs and outputs to receive and buffer media content from various sources until presentation to one of the plurality of outputs.

4. A system according to claim 1, wherein one or more of the software-enabled, matrix switches further comprises a programming grid, generated by the interface in accordance with the media processing project, to control routing of the media content from the one or more inputs to the one or more outputs.

5. A system according to claim 1, wherein the objects coupled to the scalable plurality of outputs include one or more of a transition filter, an effects filter and/or a render filter.

6. A system according to claim 1, wherein the interface unloads a chain when the matrix switch provides an indication that the chain is no longer required.

7. A system comprising:

one or more computer-readable media;

computer-readable instructions on the computer-readable media which, when executed, implement a system comprising;

a filter graph comprising a plurality of filters to process a media development project;

a matrix switch, associated with the filter graph, configured to selectively pass media content from one or more of a scalable plurality of input(s) to a scalable plurality of output(s); and

an interface, selectively coupled to a plurality of media sources, to generate and implement the media development project by using processing chains of filters, wherein the interface loads a processing chain for each of the plurality of media sources at a point during the execution of the project when the chain is required, and wherein the interface is configured to unload at least a subset of the chains when they are not required.

8. A system according to claim 7, wherein the matrix switch includes a programming grid, dynamically generated to selectively couple one or more of the scalable plurality of inputs to one or more of the scalable plurality of outputs to recursively process media content through one or more media processing objects coupled to the outputs, in accordance with the media development project.

9. A system according to claim 7, wherein the interface only loads those processing chains required during the next M seconds of project execution and, if the currently loaded chain-count does not exceed a threshold, T.

10. A system according to claim 9, wherein if the currently loaded chain-count has reached the threshold, T, the interface identifies one or more currently loaded chains that can be unloaded.

11. A system according to claim 10, wherein the interface unloads a chain when the matrix switch provides an indication that the chain is no longer required.

12. A system according to claim 9, whereby setting T equal to one (1), the interface will be required to search for and potentially unload chains which are not required to support execution of the project for the next N seconds.

13. A computer-implemented method for managing a media processing project, the method comprising:

identifying each of a plurality of sources required to satisfy the media processing project;

determining when one or more chain(s) of components associated with each of the plurality of sources is required to support execution of the media processing project, wherein said determining comprises utilizing at least information provided by a software-enabled matrix switch associated with the media processing project; and

selectively loading and unloading each of the chains during execution of the media processing project based, at least in part, on when each of the chains are required to support execution of the media processing project.

14. A method according to claim 13, wherein loading and unloading chains comprises:

identifying which processing chain(s) will be required within the next M seconds of project execution; and

loading the identified processing chain(s) if a currently loaded chain-count does not exceed a threshold, T.

15. A method according to claim 14, further comprising:

identifying one or more processing chains that will not be required in the next N seconds if the chain-count threshold T has been reached; and

removing the identified one or more processing chains from the media processing project.

16. A method according to claim 15, wherein removing the identified one or more processing chains comprises:

determining whether the identified processing chains will be required during subsequent execution of the media processing project, or a future processing project; and

caching at least a subset of the processing chains if they will be required during subsequent execution of the media processing project, or future processing project(s).

17. A method according to claim 15, further comprising:

determining whether removing one or more of the identified processing chains reduces the chain-count below a maximum allowable threshold, V; and

identifying one or more low priority processing chains to remove to reduce the chain-count below the maximum allowable threshold if it is determined that the chain-count exceeds the maximum allowable threshold V.

18. A method according to claim 17, wherein V is greater than T.

19. A method according to claim 13, wherein the software-enabled matrix switch is configured to selectively pass media content from one or more of a scalable plurality of matrix switch input(s) to a scalable plurality of matrix switch output(s).