Media streaming in a multi-tier client-server architecture

• US 8,392,530 B1
• Filed: 12/18/2008
• Issued: 03/05/2013
• Est. Priority Date: 12/18/2008
• Status: Active Grant

• Current Assignee: Adobe Inc.
• Original Assignee: Adobe Systems Incorporated (Adobe Inc.)
• Inventors: Manapragada, Srinivas, Cheng, Stephen, Streeter, Kevin
• Primary Examiner(s): Meky, Moustafa M
• Assistant Examiner(s): RUBIN, BLAKE J
• Application Number:
  US12/338,531
• Time in Patent Office: 1,538 Days
• Field of Search: 709/219
• US Class Current: 709/219
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/611 for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching

Abstract

Systems, methods, and computer program products permit communication between servers in a server system utilizing a proxy stream communicating over a connection between the servers. A first request for content is received, at a server, and a connection is created with at least one upstream server. At the server a name associated with the content at the upstream server is identified. A second request for the content is transmitted to the at least one upstream server, where the second request identifies the name. The content is then received at the downstream server.

Claims

1. A computer-implemented method for communicating between servers in a server system, the method comprising:

receiving, at hardware including one or more processors and one or more memory devices effecting a server, a first request for a video content segment of a segmented video stream, where

the segmented video stream comprises a plurality of video frames and a plurality of audio samples, and

the first request includes a name for the video content segment;

creating a connection with an upstream server;

determining, based on the name for the video content segment, whether the video content segment is available locally at the server;

when the video content segment is available locally,

retrieving the locally available video content segment; and

transmitting the retrieved video content segment to at least one downstream server; and

when the video content segment is not available locally,

identifying a different name for the video content segment at the upstream server, which employs a different naming convention for video content segments from the server receiving the first request for the video content segment, wherein the different name for the video content segment is not based on a network resource locator; and

transmitting a second request for the video content segment to the upstream server, the second request identifying the different name for the video content segment.

2. The computer-implemented method of claim 1, further comprising:

identifying the different name for the video content segment in at least one mapping database stored locally at the server receiving the first request for the video content segment.

3. The computer-implemented method of claim 1, further comprising:

identifying the different name for the video content segment in at least one mapping database stored external to the server receiving the first request for the video content segment.

4. The computer-implemented method of claim 1, further comprising:

transmitting, to the at least one downstream server, a notification that the video content segment is not available locally and that the second request for the video content segment is being transmitted.

5. The computer-implemented method of claim 1, further comprising:

transmitting an alternative request for the video content segment to an alternative server.

6. The computer-implemented method of claim 5, further comprising:

identifying another different name for the video content segment at the alternative server, which employs a different naming convention for video content segments from both the server receiving the first request for the video content segment and from the upstream server, and wherein transmitting the alternative request to the alternative server comprises transmitting the other different name for the video content segment at the alternative server.

7. The computer-implemented method of claim 1, wherein the upstream server is more proximal to an origin server than the server receiving the first request for the video content segment.

8. The computer-implemented method of claim 7, wherein the upstream server includes the origin server.

9. The computer-implemented method of claim 8, wherein the at least one downstream server is more distal from the origin server than the server receiving the first request for the video content segment.

10. A non-transitory computer-readable storage medium encoding a computer program product operable to cause data processing apparatus to perform operations comprising:

receiving, at a server, a first request for a video content segment of a segmented video stream, where

the segmented video stream comprises a plurality of video frames and a plurality of audio samples, and

the first request includes a name for the video content segment;

creating a connection with at least one upstream server;

identifying, at the server receiving the first request for the video content segment, a different content name for the video content segment at the upstream server, which employs a different naming convention for video content segments from the server receiving the first request for the video content segment, wherein the different name for the video content segment is not based on a network resource locator; and

transmitting a second request for the video content segment to at least one upstream server, the second request identifying the different name for the video content segment.

11. The non-transitory computer-readable storage medium of claim 10, operable to cause data processing apparatus to perform operations comprising:

identifying the different name for the video content segment in at least one mapping database stored locally at the server receiving the first request for the video content segment.

12. The non-transitory computer-readable storage medium of claim 10, operable to cause data processing apparatus to perform operations comprising:

identifying the different name for the video content segment in at least one mapping database stored external to the server receiving the first request for the video content segment.

13. The non-transitory computer-readable storage medium of claim 10, operable to cause data processing apparatus to perform operations comprising:

transmitting an alternative request for the video content segment to an alternative server.

14. The non-transitory computer-readable storage medium of claim 13, operable to cause data processing apparatus to perform operations comprising:

identifying another different name for the video content segment at the alternative server, which employs a different naming convention for video content segments from both the server receiving the first request for the video content segment and from the upstream server, and wherein transmitting the alternative request to the alternative server comprises transmitting the other different name for the video content segment at the alternative server.

15. The non-transitory computer-readable storage medium of claim 10, wherein the upstream server is more proximal to an origin server than the server receiving the first request for the video content segment.

16. The non-transitory computer-readable storage medium of claim 15, wherein the upstream server includes the origin server.

17. The non-transitory computer-readable storage medium of claim 16, operable to cause data processing apparatus to perform operations comprising:

determining, based on the name for the video content segment, whether the video content segment is available locally at the server and when the video content segment is available locally, transmitting the locally available video content segment to at least one downstream server, wherein the at least one downstream server is more distal from the origin server than the server receiving the first request for the video content segment.

18. A system for communicating between servers in a server architecture, the system comprising:

one or more nodes in a network; and

hardware including one or more processors and one or more memory devices effecting at least one server configured to perform operations, comprising;

receiving, at the server, a first request for a video content segment of a segmented video stream, where

the segmented video stream comprises a plurality of video frames and a plurality of audio samples, and

the first request includes a name for the video content segment;

creating a connection with at least one upstream server;

identifying, at the server receiving the first request for the video content segment, a different name for the video content segment at the upstream server, which employs a different naming convention for video content segments from the server receiving the first request for the video content segment, wherein the different name for the video content segment is not based on a network resource locator; and

transmitting a second request for the video content segment to at least one upstream server, the second request identifying the different name for the video content segment.

19. The system of claim 18, wherein the at least one server is further configured to perform operations comprising:

identifying the different name for the video content segment in at least one mapping database stored locally at the server receiving the first request for the video content segment.

20. The system of claim 18, wherein the at least one server is further configured to perform operations comprising:

identifying the different name for the video content segment in at least one mapping database stored external to the server receiving the first request for the video content segment.

21. The system of claim 18, wherein the at least one server is further configured to perform operations comprising:

transmitting an alternative request for the video content segment to an alternative server.

22. The system of claim 21, wherein the at least one server is further configured to perform operations comprising:

identifying another different name for the video content segment at the alternative server, which employs a different naming convention for video content segments from both the server receiving the first request for the video content segment and from the upstream server, and wherein transmitting the alternative request to the alternative server comprises transmitting the other different name for the video content segment at the alternative server.

23. The system of claim 18, wherein the upstream server is more proximal to an origin server than the server receiving the first request for the video content segment.

24. The system of claim 23, wherein the upstream server includes the origin server.

25. The system of claim 24, wherein the at least one server is further configured to perform operations comprising:

determining, based on the name of the video content segment, whether the video content segment is available locally at the server and when the video content segment is available locally, transmitting the locally available video content segment to at least one downstream server, wherein the at least one downstream server is more distal from the origin server than the server receiving the first request for the video content segment.

26. A non-transitory computer-readable storage medium encoding a computer-based application programming interface (API) system for communicating with one or more servers in a server system, comprising:

an API comprising functions for;

receiving, at a computing device, a first request for a video content segment of a segmented video stream, where,

the segmented video stream comprises a plurality of video frames and a plurality of audio samples, and

the first request includes a name for the video content segment, the name being controlled by a server side action script developer;

creating a connection with an upstream server;

determining, based on the name for the video content segment, whether the video content segment is available locally at the computing device;

when the video content segment is not available locally at the computing device,

identifying a different name for the video content segment at the upstream server, which employs a different naming convention for video content segments from the computing device, wherein the different name for the video content segment is received from a content management system or a stream provisioning system; and

transmitting a second request for the video content segment to the upstream server, the second request identifying the different name for the video content segment.

27. The API system of claim 26, wherein the API further comprises functions for:

identifying the different name for the video content segment in at least one mapping database stored locally at the computing device.

28. The API system of claim 26, wherein the API further comprises functions for:

identifying the different name for the video content segment in at least one mapping database stored external to the computing device.