System and related methods for reducing source filter invocation in a development project

• US 7,197,752 B2
• Filed: 07/29/2005
• Issued: 03/27/2007
• Est. Priority Date: 12/06/2000
• Status: Expired due to Term

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Rudolph, Eric H., Miller, Daniel J.
• Primary Examiner(s): Donaghue; Larry D.
• Assistant Examiner(s): PATEL, HARESH N
• Application Number:
  US11/192,953
• Publication Number:
  US 20050273789A1
• Time in Patent Office: 606 Days
• Field of Search: 719/328, 719/315, 719/316, 719/310, 709/231, 709200-203, 725/115, 381/119, 707/106.1, 707/103, 713/400, 345/716
• US Class Current: 719/328
• CPC Class Codes: G06F 9/5016 the resource being the memory

Abstract

A method of representing a development project is presented comprising identifying a plurality of sources comprising the development project, determining whether any of the sources are required simultaneously and, if not, dynamically generating a filter graph representation of the development project utilizing a segment filter to couple a source to multiple processing threads.

Claims

1. A computer-implemented method comprising:

providing an input on a software object for use in a media processing filter graph, the input being coupled to a media source, to receive content from the media source; and

providing, on the software object, a dynamically determined plurality of outputs, each responsive to the input and coupled to a source processing chain, to provide each of the source processing chains with their requested respective disparate media type source clips a single instance of the media source in accordance with a user defined media processing project, wherein said object is configured to parse the media source content into the respective disparate media type source clips provided by said single instance of the media source.

2. The method of claim 1, wherein the software object alleviates each source processing chain from opening an independent instance of the source.

3. The method of claim 1, wherein the number of outputs are dynamically determined by the number of independent processing chains required to process media content from the media source.

4. The method of claim 1, wherein the source processing chains are comprised of filter graph filters which uniquely transform the media content in some way.

5. The method of claim 1, wherein the object receives requests for media content from one or more of the source processing chains and satisfies said requests.

6. The method of claim 5, wherein the object issues seek commands to the media source to satisfy the request(s) for media content.

7. The method of claim 5, wherein the object serializes simultaneous requests for media from the source received from multiple source chains.

8. The method of claim 7, wherein the object prioritizes the serialized requests based, at least in part, on a relative project time of each of the requested clips.

9. The method of claim 6, wherein the object receives request for media content from a user through a higher-level application, and issues a seek command to satisfy the request.

10. The method of claim 1, wherein multiple objects are invoked and coupled to an associated multiple instances of source filters to satisfy multiple simultaneous requests for content from the sources.

11. The method of claim 1, wherein the object is exposed by an operating system executing on a computing system implementing a media processing system.

12. The method of claim 1, wherein the object is an instance of a segment filter exposed to a media processing system executing on a computer system through a render engine.

13. A computer-implemented method comprising:

providing a software object coupled to a source processing chain in a media processing filter graph, the software object comprising an input, coupled to a media source, to receive content from the media source;

providing a dynamically determined plurality of software object outputs, each responsive to the software object input and coupled to a plurality of source processing chain, to provide each of the source processing chains with their requested respective disparate media type source clips from a single instance of the media source in accordance with a user defined media processing project, wherein said object is configured to parse the media source content into the respective disparate media type source clips provided by said single instance of the media source;

the source processing chain comprising;

a scalable, dynamically reconfigurable matrix switch having a plurality of inputs and a plurality of outputs;

at least one matrix switch input being communicatively linked with a first processing chain portion;

at least one other matrix switch input being communicatively linked with a second processing chain portion;

the matrix switch being configured to dynamically couple one or more of the matrix switch inputs to one or more of the matrix switch outputs.

14. The method of claim 13, wherein the matrix switch is configured to dynamically couple said one or more matrix switch inputs to said one or more matrix switch outputs based, at least in part, on a media time associated with the user defined media processing project.

15. The method of claim 13, wherein the matrix switch is configured to dynamically couple said one or more matrix switch inputs to said one or more matrix switch outputs based, at least in part, on a project time associated with the user defined media processing project.

16. The method of claim 13, wherein the matrix switch is configured to dynamically couple said one or more matrix switch inputs to said one or more matrix switch outputs based, at least in part, on content of a matrix switch programming grid.

17. The method of claim 13, wherein the matrix switch is configured to dynamically couple said one or more matrix switch inputs to said one or more matrix switch outputs based, at least in part, on a media time associated with the user defined media processing project, a project time associated with the user defined media processing project, and content of a matrix switch programming grid.

18. The method of claim 13, wherein the software object alleviates each source processing chain from opening an independent instance of the source.

19. The method of claim 13, wherein the number of software object outputs are dynamically determined by the number of independent processing chains required to process media content from the media source.

20. The method of claim 13, wherein the object receives requests for media content from one or more of the source processing chains and satisfies said requests.