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Code rate adaptive method, device, electronic equipment and readable medium for live video

A live video and bit rate technology, applied in the video field, can solve the problems of inability to optimize live video performance, inability to make full use of, and lack of end users, and achieve the effects of excellent overall performance, good QoE performance, and good video quality.

Active Publication Date: 2022-06-24
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current end users lack network assistance, cannot make full use of the information in the network, and cannot optimize the performance of live video broadcasting from a global perspective

Method used

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  • Code rate adaptive method, device, electronic equipment and readable medium for live video
  • Code rate adaptive method, device, electronic equipment and readable medium for live video
  • Code rate adaptive method, device, electronic equipment and readable medium for live video

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Embodiment Construction

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and thus their repeated descriptions will be omitted.

[0033] The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of the embodiments of the present invention. However, those skilled in the art will appreciate that the technical solutions of the present invention may be practiced without one or more of th...

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Abstract

Embodiments of the present disclosure provide a code rate adaptive method, device, electronic device, and readable medium for live video. The method includes: obtaining the end-to-end transmission rate, current buffer capacity, and current Playback speed; will start from the current GOP n To Group of Picture GOP n+W‑1 The W picture groups of the current time window sequence are determined as the current time window sequence; the M of the current time window sequence is determined according to the M preset code rate levels W A candidate code rate sequence; calculate the QoE of each candidate code rate sequence according to the target user's end-to-end transmission rate, current buffer capacity, and current playback speed, so as to determine the candidate code rate sequence corresponding to the maximum QoE as the target Code rate sequence; determine the current group of pictures GOP in the target code rate sequence n target bit rate to download the current group of pictures GOP according to the target bit rate n . The technical solutions provided by the embodiments of the present disclosure can perform long-term optimization on code rate selection and frame skipping strategies, thereby improving the performance of live video services.

Description

technical field [0001] The present disclosure relates to the field of video technologies, and in particular, to a method, apparatus, electronic device, and computer-readable medium for adaptive bit rate of live video. Background technique [0002] With the explosion of mobile Internet applications, the wireless video live broadcast business has developed rapidly. The time-varying characteristics of traditional 4G network wireless channels and the limited spectrum resources result in unstable video live service experience in wireless scenarios. [0003] In recent years, in order to solve the user experience of live broadcast, the industry is trying various solutions, two of which are widely used. One is Content Delivery Network (CDN) acceleration technology, and the other is adaptive streaming media technology. CDN acceleration technology refers to the commonly used content distribution network technology to accelerate video transmission in live broadcast, relying on edge s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/2187H04N21/442H04N21/6373H04N21/647H04L65/80H04L65/60H04N19/177
CPCH04N21/2187H04N21/44227H04N21/64769H04N21/64723H04N21/6373H04N19/177H04L65/80H04L65/70
Inventor 王文博曾敏寅张志龙刘丹谱
Owner CHINA TELECOM CORP LTD
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