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Method for regulating video code rate and electronic equipment

A technology of electronic equipment and bit rate, applied in the field of communication, can solve the problems of unsatisfactory visual quality, unreflected reward function, and insufficient consideration of client buffer smoothness and dynamic characteristics.

Active Publication Date: 2017-09-05
肖峰
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this scheme does not fully consider the smoothness and dynamics of the client buffer
Furthermore, the reward functions defined in all these schemes do not reflect that users are more sensitive to frequent short-term bitrate fluctuations compared to long-term bitrate switching
Finally, existing schemes usually rely on a single reward mechanism for the entire streaming session, making the visual quality unsatisfactory, since the user's focus on visual quality is usually different in different streaming situations

Method used

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  • Method for regulating video code rate and electronic equipment
  • Method for regulating video code rate and electronic equipment
  • Method for regulating video code rate and electronic equipment

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Embodiment Construction

[0082] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Some, but not all, embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0083] An embodiment of the present invention provides a method for adjusting video code rate. The method can be applied to DASH clients in order to improve the user experience of video streaming. The following will take the DASH system as an example to describe the embodiment of the present invention, but those skilled in the art can understand that the DASH system i...

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Abstract

The embodiment of the invention provides a method for regulating a video code rate and electronic equipment, and belongs to the field of communication. The method comprises the steps of: downloading one code rate version in a plurality of code rate versions of video segments from a server; acquiring a current state, wherein the current state comprises a cached video segment duration, a change rate of the cached video segment duration, a historical video segment code rate vector, a video segment code rate consensus function and a bandwidth; and according to the current state, determining an optimal request code rate of a subsequent video segment.

Description

technical field [0001] The invention relates to the field of communication, in particular to a method for adjusting video code rate and electronic equipment. Background technique [0002] In recent years, dynamic adaptive streaming over HTTP (DASH) based on HTTP has been widely used to provide uninterrupted video streaming services to users with dynamic network conditions and heterogeneous devices. Dynamic bit rate adaptation is one of the most important features of DASH, because it can automatically provide users with the highest possible quality video. [0003] Without efficient bitrate adaptation algorithms, DASH clients may suffer from frequent interruptions and sub-optimal visual quality. At present, there are some code rate adaptive schemes related to DASH, such as bandwidth-based code rate adaptive schemes and buffer-based code rate adaptive schemes. [0004] Recently, Markov theory has been shown to be effective for analyzing the dynamics of video streaming deliver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/2662H04N21/24
CPCH04N21/2402H04N21/2662
Inventor 周超
Owner 肖峰