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Video Prefetching

Last updated: 2024-10-11 11:55:27

Overview
When the network environment is poor or the audio and video files are too large, users may face issues like first frame loading delay or playback stutter. The Audio and Video Prefetching feature of EdgeOne can effectively improve these problems. This feature automatically caches part of the audio and video data before the user clicks play, significantly shortening buffer time and ensuring a smooth viewing experience even in unstable network conditions. Additionally, Audio and Video Prefetching is the default configuration policy of EdgeOne, with optimal parameters set for audio and video scenarios. Users only need to select the corresponding recommended scenarios when adding a domain to activate the feature by default.
How the Feature Works
For HLS/DASH files:, when the client requests an m3u8/mpd file, the EdgeOne edge node proactively pulls the ts/m4s segments to speed up the response time for subsequent requests.
For MP4/FLV files:, when a client initiates a range request, by expanding the range of the request and then going back to the source, files are pre-cached to the EdgeOne edge node, improving response efficiency.
Operation step
If you need to activate the audio and video pre-pulling feature, you can refer to the following steps:
Note:
The current operation steps guide is only applicable to the scenario of newly created domains. If you need to activate the audio and video pre-pulling feature for domains already added under your account, please contact your business assistance to apply for activation.
1. Login to the EdgeOne Console, in the left menu bar, click on Site List, in the site list click on the site to be configured.
2. On the Site Details page, click Domain Name Service, select Add domain name, and refer to the domain configuration item descriptions to complete the basic configuration of the domain. Click the Next button.
3. In the Recommended configuration (Optional) step, click to select the audio and video on demand card, choose to use the recommended configuration for this scenario, and when audio and video files are added under this domain, the audio and video pre-pulling operation will be triggered by default.
4. Click Next and complete the subsequent domain configuration operations.
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