Method and Apparatus for Signaling Layer Information of Scalable Media Data

• US 20100250764A1
• Filed: 03/31/2009
• Published: 09/30/2010
• Est. Priority Date: 03/31/2009
• Status: Abandoned Application

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Alamaunu, Jyrki Tapio, Vare, Jani Petteri
• Application Number:
  US12/415,576
• Publication Number:
  US 20100250764A1
• Time in Patent Office: Days
• US Class Current: 709/231
• CPC Class Codes: H04L 65/756 adapting media to device capabilities
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04N 21/234327 by decomposing into layers, e.g. base layer and one or more enhancement layers
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/2662 Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/631 Multimode Transmission, e.g. transmitting basic layers and enhancement layers of the content over different transmission paths or transmitting with different error corrections, different keys or with different transmission protocols
• CPC Class Codes: H04N 21/84 Generation or processing of descriptive data, e.g. content descriptors systems specially adapted for using meta-information in broadcast systems H04H60/73

Abstract

In accordance with an example embodiment of the present invention, a method and apparatus are described for mapping one or more layers of a scalable media stream to at least one physical layer pipe of a transmission. Information related to the mapping is transmitted. Also, the one or more layers are transmitted in the at least one physical layer pipe. Further, a method and apparatus are shown for receiving data in a transmission in at least one physical layer pipe. Information is received in related to a mapping of one or more layers of a scalable media stream to the at least one physical layer pipe. Based on the received information related to the mapping, the one or more layers of the scalable media stream in the received data are identified.

Claims

1. A method, comprising:

mapping one or more layers of a scalable media stream to at least one physical layer pipe of a transmission;

transmitting information related to the mapping; and

transmitting the one or more layers in the at least one physical layer pipe.

2. The method of claim 1, wherein the information related to the mapping is transmitted in a component identifier descriptor.

3. The method of claim 1, wherein the one or more layers of the scalable media stream correspond to components of a service, further comprising:

describing the components of the service in a session description file; and

transmitting the session description file.

4. The method of claim 1, further comprising:

signaling an association of the at least one physical layer pipe with a physical layer frame of the transmission.

5. The method of claim 1, wherein the scalable media stream comprises one or more layers of a video stream.

6. The method of claim 1, wherein the scalable media stream comprises one or more layers of an audio stream.

7. A method, comprising:

receiving data in at least one physical layer pipe;

receiving information related to a mapping of one or more layers of a scalable media stream to the at least one physical layer pipe; and

identifying the one or more layers of the scalable media stream in the received data based on the received information related to the mapping.

8. The method of claim 7, wherein the information related to the mapping is received in a component identifier descriptor.

9. The method of claim 7, wherein the scalable media stream corresponds to a service and the one or more layers of the scalable media stream correspond to components of the service, further comprising:

receiving a session description file describing the components of the service; and

filtering the received data for components of the service.

10. The method of claim 7, further comprising:

receiving a signaling of an association of the at least one physical layer pipe with a physical layer frame.

11. The method of claim 7, wherein the scalable media stream comprises one or more layers of a video stream.

12. The method of claim 7, wherein the scalable media stream comprises one or more layers of an audio stream.

13. An apparatus comprising:

a controller configured to map one or more layers of a scalable media stream to at least one physical layer pipe of a transmission;

a transmitter configured to transmit information related to the mapping;

wherein the transmitter is further configured to transmit the one or more layers in the at least one physical layer pipe.

14. The apparatus of claim 13, wherein information related to the mapping is transmitted in a component identifier descriptor.

15. The apparatus of claim 13, wherein the one or more layers of the scalable media stream correspond to components of a service,

wherein the controller is further configured to describe the components of the service in a session description file;

and

wherein the transmitter is further configured to transmit the session description file.

16. The apparatus of claim 13, wherein the transmitter is further configured to transmit signaling information comprising an association of the at least one physical layer pipe with a physical layer frame of the transmission.

17. The apparatus of claim 13, wherein the scalable media stream comprises one or more layers of a video stream.

18. The apparatus of claim 13, wherein the scalable media stream comprises one or more layers of an audio stream.

19. An apparatus, comprising:

a receiver configured to receive data in at least one physical layer pipe;

wherein the receiver is further configured to receive information related to a mapping of one or more layers of a scalable media stream to the at least one physical layer pipe; and

a controller configured to identify the one or more layers of the scalable media stream in the received data based on the received information related to the mapping.

20. The apparatus of claim 19, wherein the mapping is described in a component identifier descriptor.

21. The apparatus of claim 19, wherein the scalable media stream corresponds to a service and the one or more layers of the scalable media stream correspond to components of the service;

wherein the receiver is further configured to receive in a session description file describing the components of the service; and

wherein the controller is further configured to filter the received data for components of the service.

22. The apparatus of claim 19, wherein the receiver is further configured to receive a signaling of an association of the at least one physical layer pipe with a physical layer frame of the transmission.

23. The apparatus of claim 19, wherein the scalable media stream comprises one or more layers of a video stream.

24. The apparatus of claim 19, wherein the scalable media stream comprises one or more layers of an audio stream.

25. A computer program product comprising a computer-readable medium bearing computer program code embodied therein for use with a computer, the computer program code comprising:

code for mapping one or more layers of a scalable media stream to at least one physical layer pipe of a transmission;

code for transmitting information related to the mapping; and

code for transmitting the one or more layers in the at least one physical layer pipe.

26. A computer readable medium containing a data structure for a component identifier descriptor, the data structure comprising a mapping of one or more layers of a scalable media stream to at least one physical layer pipe of a transmission.