Title:
VIDEO BIT RATE DETERMINING METHOD AND APPARATUS, ELECTRONIC DEVICE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/012946
Kind Code:
A1
Abstract:
The present application relates to the technical field of video playback, and provides a video bit rate determining method and apparatus, an electronic device, and a storage medium, for use in solving the problem of stuttering in video playback. The method is applied in a device for playing a video on the basis of consecutively numbered video blocks, and comprises: determining a cancellation parameter ξ(k) used for cancelling a throughput prediction error of a video block F k; determining, on the basis of a throughput prediction value of each of video blocks from the video block F k to video block F k+N-1 and ξ(k), a cache amount prediction value of each of the video blocks from the video block F k to the video block F k+N-1 at the end of download thereof; and determining a video playback quality loss value according to a weight value of the bit rate change between adjacent video blocks requested and a cache prediction error between the cache amount prediction value and a preset cache amount target value of each of the video blocks from the video block F k to the video block F k+N-1 at the end of download thereof, and requesting the video block F k at a bit rate that does not exceed a bit rate r(k) when the video playback quality loss value is minimum.
Inventors:
ZHOU CHAO (CN)
Application Number:
PCT/CN2020/100737
Publication Date:
January 28, 2021
Filing Date:
July 07, 2020
Export Citation:
Assignee:
BEIJING DAJIA INTERNET INFORMATION TECH CO LTD (CN)
International Classes:
H04N21/2662
Foreign References:
| CN110300315A | 2019-10-01 | |||
| CN106453270A | 2017-02-22 | |||
| CN107613330A | 2018-01-19 | |||
| CN109218781A | 2019-01-15 | |||
| US20160234078A1 | 2016-08-11 |
Other References:
See also references of EP 4007285A4
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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