How to use JavaScript to get the first frame of a video as a cover image?

JavaScript Get video first frame as cover image: Best practices

In the process of learning JavaScript, extracting the first frame of the video as a cover image is a common challenge. Many methods are not successful after trying. This article will explore a more efficient and reliable solution.

Directly using browser-side JavaScript to obtain video first frames is not the best solution, because it requires loading video data, which puts additional burden on the server and the network and affects the user experience.

Recommended solution: Server-side preprocessing

It is ideal to generate video screenshots or thumbnails on the server side and then load these pre-generated images directly in the web page. This approach significantly reduces client pressure and improves user experience. This method is highly recommended if you have server resources. There are many server-side processing methods, such as using tools such as FFmpeg.

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