Method and apparatus for mediating among media applications

• US 7,941,582 B2
• Filed: 03/17/2010
• Issued: 05/10/2011
• Est. Priority Date: 06/28/2007
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Batson, James D., Bushell, John Samuel
• Primary Examiner(s): Knoll; Clifford H
• Application Number:
  US12/725,745
• Publication Number:
  US 20100241697A1
• Time in Patent Office: 419 Days
• Field of Search: 710/260, 710/262, 710/240, 710/40, 709/231, 709/232, 379/208.01
• US Class Current: 710/240
• CPC Class Codes: G06F 2209/5021 Priority
• CPC Class Codes: G06F 9/5038 considering the execution order of a plurality of tasks, e.g. taking priority or time dependency constraints into consideration scheduling strategies G06F9/4881 and subgroups

Abstract

In a device that can execute multiple media applications, but only one at a time, a media server coordinates among applications, but neither the media server nor the individual applications maintain rules regarding all of the different applications. Each connection used by an application is assigned a priority and communicates that priority to the media server when the connection is established. When an application requests to begin playback, the request is granted if no other application is playing, or if another application is playing on a connection having a priority at most equal to that of the connection used by the requesting application, but is denied if the connection already in use has a higher priority. Resumption of an application that was interrupted by another application on a connection with higher priority is determined by the interrupted application after the interruption ends, based on information communicated by the media server.

Claims

1. A method of operating a device having a media server therein, for controlling which of a plurality of media applications can be played in the device, said method comprising:

establishing a respective connection for each respective one of said applications to said media server, each said respective connection having an assigned priority, said establishing including, for each respective connection, sending of a message automatically by one of (a) said respective one of said applications, or (b) said respective connection, communicating said assigned priority to said media server;

sending a request to play from one of said applications to said media server;

when said assigned priority of said respective connection for said requesting application is lower than an assigned priority of said respective connection for another application that is playing, denying said request at said media server; and

when said assigned priority of said respective connection for said requesting application is at least equal to said assigned priority of said respective connection for said another application, granting said request at said media server.

2. The method of claim 1 wherein, when said another application is playing and said request is granted:

said another application is interrupted; and

said media server communicates information to said another application that is used by said another application to determine whether to resume when said interruption is completed.

3. The method of claim 2 wherein said information communicated by said media server to said another application is communicated to said media server by said requesting application.

4. The method of claim 2 wherein said media server communicates to said another application when said interruption is completed.

5. The method of claim 4 wherein:

said establishing a respective connection includes sending an indication of whether said respective connection is stackable;

when a further application makes a further one of said requests during said interruption and said respective connection for said further application is stackable, when said further application and said requesting application are complete, communicating to said another application that interruption of said another application is complete; and

when said further application makes said further one of said requests during said interruption and said respective connection for said further application is not stackable, when said further application and said requesting application are complete, ending playback without communicating to said another application that interruption of said another application is complete.

6. The method of claim 4 wherein said media server detects when said interruption is completed.

7. The method of claim 4 wherein said requesting application explicitly communicates to said media server that said interruption is completed.

8. The method of claim 7 wherein at least a portion of said information communicated by said media server to said another application is sent to said media server in said explicit communication.

9. The method of claim 2 wherein at least a portion of said information communicated by said media server to said another application is sent to said media server in said request.

10. The method of claim 9 wherein said at least a portion of said information includes information identifying said requesting application.

11. Apparatus for playing a plurality of media applications, said apparatus comprising:

a media server for mediating among said applications;

wherein;

a respective connection is established for each respective one of said applications to said media server, each said respective connection having an assigned priority, said establishing including, for each respective connection, automatic sending of a message by one of (a) said respective one of said applications, or (b) said respective connection, communicating said assigned priority to said media server;

one of said applications sends a request to play to said media server;

when said assigned priority of said respective connection for said requesting application is lower than an assigned priority of said respective connection for another application that is playing, said media server denies said request; and

when said assigned priority of said respective connection for said requesting application is at least equal to said assigned priority of said respective connection for said another application, said media server grants said request.

12. The apparatus of claim 11 wherein, when said another application is playing and said request is granted:

said another application is interrupted; and

said media server communicates information to said another application that is used by said another application to determine whether to resume when said interruption is completed.

13. The apparatus of claim 12 wherein said information communicated by said media server to said another application is communicated to said media server by said requesting application.

14. The apparatus of claim 12 wherein said media server communicates to said another application when said interruption is completed.

15. The apparatus of claim 14 wherein:

establishment of said respective connection includes an indication of whether said respective connection is stackable;

when a further application makes a further one of said requests during said interruption and said respective connection for said further application is stackable, when said further application and said requesting application are complete, said apparatus communicates to said another application that interruption of said another application is complete; and

when said further application makes said further one of said requests during said interruption and said request by said further application indicates that said further application is not stackable, when said further application and said requesting application are complete, said apparatus ends playback without communicating to said another application that interruption of said another application is complete.

16. The apparatus of claim 14 wherein said media server detects when said interruption is completed.

17. The apparatus of claim 14 wherein said requesting application explicitly communicates to said media server that said interruption is completed.

18. The apparatus of claim 17 wherein at least a portion of said information communicated by said media server to said another application is sent to said media server in said explicit communication.

19. The apparatus of claim 12 wherein at least a portion of said information communicated by said media server to said another application is sent to said media server in said request.

20. The apparatus of claim 19 wherein said at least a portion of said information includes information identifying said requesting application.

21. The apparatus of claim 11 further comprising a processor, wherein said media server is in said processor.

22. The apparatus of claim 21 wherein each of said applications is played by said processor.

23. The apparatus of claim 11 further comprising:

at least one processor including a plurality of processing units corresponding to said plurality of media applications;

wherein;

said media server comprises a separate processing unit.

24. A method of operating a media server in a device, for controlling which of a plurality of media applications can be played, said method comprising:

establishing a respective connection for each respective one of said applications to said media server, each said respective connection having an assigned priority, said establishing including, for each respective connection, sending of a message automatically by one of (a) said respective one of said applications, or (b) said respective connection, communicating said assigned priority to said media server;

sending a request to play from one of said applications to said media server;

when said assigned priority of said respective connection for said requesting application is lower than an assigned priority of said respective connection for another application that is playing, denying said request at said media server; and

when said assigned priority of said respective connection for said requesting application is at least equal to said assigned priority of said respective connection for said another application, granting said request at said media server.

25. The method of claim 24 wherein, when said another application is playing and said request is granted:

said another application is interrupted; and

said media server communicates information to said another application that is used by said another application to determine whether to resume when said interruption is completed.

26. The method of claim 25 wherein said information communicated by said media server to said another application is communicated to said media server by said requesting application.

27. The method of claim 25 wherein said media server communicates to said another application when said interruption is completed.

28. The method of claim 27 wherein:

said establishing a respective connection includes sending an indication of whether said respective connection is stackable;

when a further application makes a further one of said requests during said interruption and said respective connection for said further application is stackable, when said further application and said requesting application are complete, communicating to said another application that interruption of said another application is complete; and

when said further application makes said further one of said requests during said interruption and said respective connection for said further application is not stackable, when said further application and said requesting application are complete, ending playback without communicating to said another application that interruption of said another application is complete.

29. The method of claim 27 wherein said media server detects when said interruption is completed.

30. The method of claim 27 wherein said requesting application explicitly communicates to said media server that said interruption is completed.

31. The method of claim 30 wherein at least a portion of said information communicated by said media server to said another application is sent to said media server in said explicit communication.

32. The method of claim 25 wherein at least a portion of said information communicated by said media server to said another application is sent to said media server in said request.

33. The method of claim 32 wherein said at least a portion of said information includes information identifying said requesting application.

34. A media server for mediating among a plurality of media applications, said media server comprising:

a respective connection for each respective one of said applications to said media server, each said respective connection having an assigned priority;

wherein;

one of (a) said respective one of said applications, or (b) said respective connection, automatically sends a message communicating said assigned priority to said media server,

one of said applications sends a request to play to said media server,

when said assigned priority of said respective connection for said requesting application is lower than an assigned priority of said respective connection for another application that is playing, said media server denies said request, and

when said assigned priority of said respective connection for said requesting application is at least equal to said assigned priority of said respective connection for said another application, said media server grants said request.

35. The media server of claim 34 wherein, when said another application is playing and said request is granted:

said another application is interrupted; and

said media server communicates information to said another application that is used by said another application to determine whether to resume when said interruption is completed.

36. The media server of claim 35 wherein said information communicated by said media server to said another application is communicated to said media server by said requesting application.

37. The media server of claim 35 wherein said media server communicates to said another application when said interruption is completed.

38. The media server of claim 37 wherein:

establishment of said respective connection includes an indication of whether said respective connection is stackable;

when a further application makes a further one of said requests during said interruption and said respective connection for said further application is stackable, when said further application and said requesting application are complete, said apparatus communicates to said another application that interruption of said another application is complete; and

when said further application makes said further one of said requests during said interruption and said request by said further application indicates that said further application is not stackable, when said further application and said requesting application are complete, said apparatus ends playback without communicating to said another application that interruption of said another application is complete.

39. The media server of claim 37 wherein said media server detects when said interruption is completed.

40. The media server of claim 37 wherein said requesting application explicitly communicates to said media server that said interruption is completed.

41. The media server of claim 40 wherein at least a portion of said information communicated by said media server to said another application is sent to said media server in said explicit communication.

42. The media server of claim 35 wherein at least a portion of said information communicated by said media server to said another application is sent to said media server in said request.

43. The media server of claim 42 wherein said at least a portion of said information includes information identifying said requesting application.