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Rate control for multi-layer video design

A device, ratio technology, applied in the field of rate control of multi-layer video design, can solve the problem of capacity limitation of decoding bit stream and so on

Inactive Publication Date: 2012-04-25
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, the specification and class specify constraints on the bitstream, and thus set limits on the ability to decode the bitstream

Method used

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  • Rate control for multi-layer video design
  • Rate control for multi-layer video design
  • Rate control for multi-layer video design

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Embodiment Construction

[0022] The present invention describes a method, apparatus and system configured to provide scalable video encoded data, wherein the quality of the base layer encoding and the quality of the enhancement layer encoding can be adjusted so that the transmission bandwidth of the base and enhancement layers meets the required mathematical Relationships, such as ratios. The video frames may be pre-encoded at a pre-encoded quality for the purpose of characterizing the raw data. Then, depending on the characterization of the raw data, the frames can be encoded such that over a superframe (eg, one second of multimedia data), the base and enhancement layer bandwidths satisfy a certain mathematical relationship, eg, a 1:1 ratio.

[0023] In the following description, specific details are given to provide a thorough understanding of various examples. However, it will be understood by those skilled in the art that the described examples may be practiced without these specific details. Fo...

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Abstract

Methods and apparatus for efficient encoding multimedia data, such as live video streams are disclosed. The multimedia data is pre-encoded into multiple layers and characteristics of the pre-encoded data are determined. Based at least in part on the determined characteristics, the multimedia data is encoded into multiple layers.

Description

[0001] Claim of priority under 35 U.S.C § 119 [0002] This patent application claims priority to Provisional Application No. 60 / 677,608, filed May 3, 2005, and entitled "Rate Control For Two Layer Video Design," which states The provisional application is assigned to the assignee of the present application and is expressly incorporated herein by reference. technical field [0003] The present invention relates to a method and apparatus for encoding and decoding scalable multimedia data to construct enhancement layer frames by efficiently reusing base layer modules. Background technique [0004] Streaming media over the Internet and mobile / wireless channels has attracted a great deal of attention due to the explosive growth and tremendous success of the Internet and wireless communications, as well as the growing demand for multimedia services. In a heterogeneous Internet Protocol (IP) network, video is provided by a server and can be streamed by one or more clients. Wire...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/66
CPCH04N19/00187H04N19/0006H04N19/00284H04N19/0009H04N19/0043H04N19/00363H04N19/15H04N19/115H04N19/124H04N19/177H04N19/194H04N19/31H04N19/30
Inventor 陈培松田涛维贾雅拉克希米·R·拉韦恩德拉恩
Owner QUALCOMM INC