METHOD AND APPARATUS FOR ADAPTIVE STREAMING USING SCALABLE VIDEO CODING SCHEME

• US 20110216821A1
• Filed: 03/02/2011
• Published: 09/08/2011
• Est. Priority Date: 03/02/2010
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: PARK, Min-Woo, KIM, Hyun-Mun, KIM, Dae-Hee, CHOI, Woong-Il, CHO, Dae-Sung
• Application Number:
  US13/038,619
• Publication Number:
  US 20110216821A1
• Time in Patent Office: Days
• US Class Current: 375/240.02
• CPC Class Codes: H04N 19/115 Selection of the code volume for a coding unit prior to coding
• CPC Class Codes: H04N 19/146 Data rate or code amount at the encoder output
• CPC Class Codes: H04N 19/164 Feedback from the receiver or from the transmission channel
• CPC Class Codes: H04N 19/187 the unit being a scalable video layer
• CPC Class Codes: H04N 19/30 using hierarchical techniques, e.g. scalability H04N19/63 takes precedence
• CPC Class Codes: H04N 19/46 Embedding additional information in the video signal during the compression process H04N19/517, H04N19/68, H04N19/70 take precedence
• CPC Class Codes: H04N 21/234327 by decomposing into layers, e.g. base layer and one or more enhancement layers
• CPC Class Codes: H04N 21/2662 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 21/44209 Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network arrangements for maintenance or administration in data switching networks involving bandwidth and capacity management H04L41/0896
• CPC Class Codes: H04N 21/6377 directed to server one-way streaming services wherein the source is controlled by the destination H04L65/613

Abstract

A method which provides a video streaming service, and the method includes: generating layer data for a corresponding video in accordance with a layer coding scheme using residual data; receiving bit rate information including a bit rate decodable in a terminal from the terminal; selecting a layer necessary for a decoding of a video corresponding to the decodable bit rate from among the generated layer data; and transmitting layer information and layer data corresponding to the selected layer to the terminal.

Claims

1. A method for providing a video streaming service, the method comprising:

generating layer data for a corresponding video in accordance with a layer coding scheme using residual data;

receiving bit rate information including a bit rate decodable in a terminal, at the terminal;

selecting a layer for a decoding of a video corresponding to the bit rate decodable in the terminal, from among the generated layer data; and

transmitting layer information and layer data corresponding to the selected layer to the terminal.

2. The method as claimed in claim 1, further comprising, after the generating of the layer data, transmitting entire bit rate information including bit rates supportable in a server for the corresponding video when a request for the corresponding video is received from the terminal.

3. The method as claimed in claim 2, wherein the bit rate information including the bit rate decodable in the terminal is selected by the terminal from among the bit rates included in the entire bit rate information by considering a state of the terminal or a network.

4. A method for receiving a video streaming service, the method comprising:

transmitting bit rate information including a bit rate decodable in a terminal, to a server;

receiving layer information and layer data corresponding to a layer selected by the server, from the server to decode a video corresponding to the bit rate decodable in the terminal; and

decoding the video corresponding to the bit rate decodable in the terminal, by using the layer information and the layer data, in which the layer selected by the server is selected from among the layer data generated for the corresponding video in accordance with a layer coding scheme using residual data.

5. The method as claimed in claim 4, further comprising:

before the transmitting of the bit rate information to the server,

transmitting a request for the corresponding video to the server; and

receiving entire bit rate information including bit rates supportable in the server for the corresponding video.

6. The method as claimed in claim 5, wherein the bit rate information including the bit rate decodable in the terminal is selected by the terminal from the bit rates included in the entire bit rate information by considering a state of the terminal or a network.

13. The method as claimed in claim 5, wherein the bit rate information is periodically or aperiodically transmitted from the terminal to the server.

14. The method as claimed in claim 5, wherein the terminal monitors a state value of the terminal or a network, and the terminal selects a single bit rate from among the bit rates included in the entire bit rate information based on the monitored state value of the network or terminal and transmits the bit rate information of the selected bit rate to the server.

7. An apparatus which provides a video streaming service, the apparatus comprising:

a scalable coding unit which generates layer data for a corresponding video in accordance with a layer coding scheme using residual data;

a controller which receives bit rate information including a bit rate decodable in a terminal, from the terminal and which selects a layer for decoding a video corresponding to the decodable bit rate from among the generated layer data; and

a multiplexer which multiplexes layer information and layer data corresponding to the selected layer and which transmits the multiplexed layer information and layer data to the terminal.

8. The apparatus as claimed in claim 7, wherein when a request for the corresponding video is received from the terminal, the controller transmits entire bit rate information including bit rates supportable in a server for the corresponding video.

9. The apparatus as claimed in claim 8, wherein the bit rate information including the bit rate decodable in the terminal is selected by the terminal from among the bit rates included in the entire bit rate information by considering a state of the terminal or a network.

10. An apparatus which receives a video streaming service, the apparatus comprising:

a controller which transmits bit rate information including a bit rate decodable in a terminal, to a server;

a demultiplexer which receives and demultiplexes layer information and layer data corresponding to a layer selected by the server, from the server to decode a video corresponding to the bit rate decodable in the terminal; and

a scalable decoding unit which decodes the video corresponding to the bit rate decodable in the terminal by using the layer information and the layer data,

in which the layer selected by the server is selected from among the layer data generated for the corresponding video in accordance with a layer coding scheme using residual data.

11. The apparatus as claimed in claim 10, wherein the controller transmits a request for the corresponding video to the server and receives entire bit rate information including bit rates supportable in the server for the corresponding video.

12. The apparatus as claimed in claim 11, wherein the bit rate information including the bit rate decodable in the terminal is selected by the terminal from among the bit rates included in the entire bit rate information by considering a state of the terminal or network.

15. An apparatus which provides a video streaming service, the apparatus comprising:

a scalable coding unit which generates layer data for a corresponding video in accordance with a layer coding scheme using residual data;

a controller which measures bit rate information including a bit rate decodable by a terminal, from the terminal and which selects a layer for decoding a video corresponding to the bit rate decodable by the terminal from among the generated layer data; and

a multiplexer which multiplexes layer information and layer data corresponding to the selected layer and which transmits the multiplexed layer information and layer data to the terminal.

16. The apparatus as claimed in claim 15, wherein the controller transmits entire bit rate information including bit rates supportable in a server for the corresponding video to the terminal based on the measured bit rate information.