Why Does Frame Freezing Occur During the Playback of a Transcoded Video?

The possible cause is that the transcoded media file is not pre-loaded. As a result, when the first subscriber accesses the file, they need to obtain the file from the VOD origin server. You are advised to pre-load the media file on the VOD console or by calling APIs to distribute the media file to CDN nodes. In this way, the cache can be directly hit upon the first access, which prevents frame freezing during the first playback.