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A method, device, terminal and storage medium for determining a video download bit rate

A bit rate and video technology, which is applied to the determination method of video download bit rate, devices, terminals and storage media, can solve the problems of insufficient cache time, playback freeze, and low fluency of video playback, so as to ensure fluency, Avoid playback freeze and improve the effect of download clarity

Active Publication Date: 2022-07-08
BIGO TECH PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, after downloading each small video data segment with an adaptive bit rate, the remaining cache time of the player used to cache each small video data segment on the client may be insufficient, making it impossible to support the small video data segments at each adaptive bit rate. Downloading, and real-time changes in the network status will also lead to low fluency during video playback, which may easily cause playback freezes and seriously affect the user's viewing experience of the video

Method used

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  • A method, device, terminal and storage medium for determining a video download bit rate
  • A method, device, terminal and storage medium for determining a video download bit rate
  • A method, device, terminal and storage medium for determining a video download bit rate

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Embodiment 1

[0036] Figure 2A This is a flowchart of a method for determining a video download bit rate provided in Embodiment 1 of the present invention, and this embodiment can be applied to a situation in which live webcasting or video-on-demand is performed through any player. The method for determining a video download bit rate provided in this embodiment may be performed by the apparatus for determining a video download bit rate provided in this embodiment of the present invention, which may be implemented in software and / or hardware, and is integrated into the implementation of this In the terminal of the method, the terminal may be any user equipment such as a mobile phone, a tablet computer, or a notebook configured with any video application program for live webcasting or video-on-demand.

[0037] Specifically, refer to Figure 2A , the method may include the following steps:

[0038] S210: Select a target bit rate gear from the bit rate gears of the current segmented video. ...

Embodiment 2

[0054] Figure 3A A flowchart of a method for determining a video download bit rate provided in Embodiment 2 of the present invention, Figure 3B This is a schematic diagram of the principle of the video download process provided by the second embodiment of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiment, and this embodiment mainly describes in detail the selection of the target bit rate gear of the current segmented video and the specific determination process of the download bit rate.

[0055] optional, as in Figure 3A As shown, this embodiment may include the following steps:

[0056] S310, according to the linear conversion relationship corresponding to the target remaining buffering range where the remaining buffering duration under the current segmented video is located, calculate the remaining buffering lower limit corresponding to each bit rate gear of the current segmented video.

[0057] Optionally, in order to a...

Embodiment 3

[0074] Figure 4A A flowchart of a method for determining a video download bit rate provided by Embodiment 3 of the present invention, Figure 4B This is a schematic diagram of the principle of the video downloading process provided by the third embodiment of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiment. This embodiment mainly adjusts the current segment video under each target bit rate gear and each associated segment video under the corresponding target associated bit rate gear. The specific calculation process of the quality of experience index will be explained in detail.

[0075] optional, as in Figure 4A As shown, this embodiment may include the following steps:

[0076] S410: Select a target bit rate gear from the bit rate gears of the current segmented video.

[0077] S420: Select a target associated bit rate gear from the bit rate gears of each associated segmented video.

[0078] S430, for each target bit ra...

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Abstract

The embodiments of the present invention disclose a method, device, terminal and storage medium for determining a video download bit rate. Wherein, the method includes: selecting a target bit rate gear from the bit rate gears of the current segmented video, and the remaining buffer lower limit corresponding to the target bit rate gear is less than the remaining buffer duration under the current segmented video; Select the target bit rate gear selected by the current segmented video when the global index reaches the best rate gear, as the download bit rate of the current segmented video, and the global indicator is the current segmented video and the undownloaded associated segmented video. The integration results of the estimated quality of experience indicators when downloading the corresponding bit rate gears are selected respectively. The technical solution provided by the embodiment of the present invention avoids the problem of stuck playback caused by insufficient remaining cache duration and real-time changes in network status, improves the download clarity of segmented videos, and avoids downloading when playing the downloaded segmented videos. The playback freeze caused by not being timely ensures the smoothness of video playback.

Description

technical field [0001] Embodiments of the present invention relate to the field of video processing, and in particular, to a method, device, terminal and storage medium for determining a video download bit rate. Background technique [0002] With the development of network streaming technology, high-definition real-time video has become an important way for people to communicate and entertain. However, because the amount of video data is too large, the overall video file is usually divided into multiple small video data segments for the client to download in segments using different adaptive bit rates according to the real-time changing network status. The adaptive bit rate selection strategy adopted when downloading small video data segments in segments will greatly affect the smoothness of video playback. [0003] At present, the Model Predictive Control (MPC) algorithm is usually used to calculate the adaptive bit rate of each small video data segment. When downloading t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/433H04N21/44H04N21/442H04N21/462H04N21/6373H04N21/845
CPCH04N21/4331H04N21/44004H04N21/4621H04N21/44209H04N21/6373H04N21/8456
Inventor 石磊刘丽朱敏
Owner BIGO TECH PTE LTD