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Method, device, electronic equipment and storage medium for determining video code rate

A method for determining a bit rate, a technology for determining a bit rate, applied in the fields of electronic equipment and storage media, a method for determining a video bit rate, and an apparatus, which can solve the problems of video playback freezes, insufficient video playback control algorithm player cache, etc.

Active Publication Date: 2021-08-13
BEIJING DAJIA INTERNET INFORMATION TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present application provides a method, device, electronic device and storage medium for determining the video bit rate, which are used to solve the problem in the prior art that video playback freezes due to incorrect prediction of the video playback control algorithm or insufficient player cache, which cannot be used for The problem of providing users with a good quality of user experience

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  • Method, device, electronic equipment and storage medium for determining video code rate
  • Method, device, electronic equipment and storage medium for determining video code rate
  • Method, device, electronic equipment and storage medium for determining video code rate

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Embodiment Construction

[0039] In order to make the purpose, technical solutions and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the application, not all of them. . Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0040] The application scenarios described in the embodiments of this application are to illustrate the technical solutions of the embodiments of the application more clearly, and do not constitute limitations on the technical solutions provided by the embodiments of the application. Those of ordinary skill in the art know that with the development of new application scenarios It appears that the technical solutions provided by the embodiments of the present applicat...

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Abstract

The present application discloses a method, device, electronic device and storage medium for determining a video code rate, and relates to the field of video playback technology to solve the problem of stuck video playback. The method is applied to video playback based on consecutively numbered video blocks, including: determine the offset video block F k The offset parameter ξ(k) of the throughput prediction error of ; based on the video block F k to video block F k+N‑1 The throughput prediction value and ξ(k) of each video block in , determine the video block F k to video block F k+N‑1 The predicted value of the cache amount at the end of each video block download; according to the weighted value of the bit rate variation between the requested adjacent video blocks, the video block F k to video block F k+N‑1 The buffer prediction error of the cache amount prediction value and the preset cache amount target value at the end of the download of each video block, determine the video playback quality loss value, and use the code rate r(k ) code rate request for the video block F k .

Description

technical field [0001] The present application relates to the technical field of video playback, and in particular to a video bit rate determination method, device, electronic equipment and storage medium. Background technique [0002] When providing video playback, in order to provide good quality of experience (Quality of Experience, QoE) under dynamically changing network conditions, many video players currently play videos based on consecutively numbered video blocks, and the video is cut into many blocks , the video player applies a bit rate adaptive algorithm to switch the video bit rate in units of blocks to adapt to the current network conditions, wherein the higher the bit rate used for encoding, the better the video quality. [0003] The purpose of the bit rate adaptive algorithm is to provide a good QoE, which includes three parts: high video bit rate, less playback stuttering and less bit rate switching; currently, the adaptive bit rate (Adaptive Bit Rate, ABR) a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/2662H04N21/426H04N21/44H04N21/442H04N21/845H04N17/00
CPCH04N21/42607H04N21/44004H04N21/442H04N21/845H04N17/004H04N21/2662H04N19/103H04N19/15H04N19/176H04N19/192H04N21/8456H04N19/189
Inventor 周超
Owner BEIJING DAJIA INTERNET INFORMATION TECH CO LTD