The many sizes of a video element

What is th size of a <video>? The browser has several APIs reporting widths and heights, but they’re all subtly different! This blog post is a playground. It gets your webcam stream and displays it in a <video> element. You can change the size constaints that are applied, and you can change the size of the displayed video. Based on this, the page shows the various widths and heights of the video as reported by different browser APIs. I’ll follow this post with some analysis of what they all mean!


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Tagged #programming, #web. All content copyright James Fisher 2020. This post is not associated with my employer. Found an error? Edit this page.