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1. (WO2017031692) VIDEO DOWNLOADING METHOD, APPARATUS, AND SYSTEM

Pub. No.:    WO/2017/031692    International Application No.:    PCT/CN2015/088033
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Wed Aug 26 01:59:59 CEST 2015
IPC: H04N 21/2662
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: WANG, Fei
王飞
FEI, Zesong
费泽松
Title: VIDEO DOWNLOADING METHOD, APPARATUS, AND SYSTEM
Abstract:
Embodiments of the present invention provide a video downloading method, apparatus, and system. The video downloading method of the present invention comprises: requesting, according to a video playing instruction, to download N preset-code-rate video fragments of a to-be-played video from a video server, N being a natural number; downloading the N video fragments after obtaining a video downloading response returned by the video server; and repeatedly executing the following steps till the to-be-played video is completely downloaded: determining a corresponding code rate of a next to-be-downloaded video fragment according to a time length of a video fragment, a time length of a buffered video, an average downloading speed of a previous video fragment, and a code rate of the previous video fragment; requesting to download the next video fragment having the corresponding code rate from the video server; and downloading the next video fragment having the corresponding code rate after obtaining a video downloading response returned by the video server. The embodiments of the present invention improve the quality of mobile video playing, greatly reduce the code rate changing frequency in a video downloading process, and improve the QoE of a user.