Processing.org. Video on the Web. You are here: Home Dive Into HTML5 Diving In Anyone who has visited YouTube.com in the past four years knows that you can embed video in a web page. But prior to HTML5, there was no standards-based way to do this. Virtually all the video you’ve ever watched “on the web” has been funneled through a third-party plugin — maybe QuickTime, maybe RealPlayer, maybe Flash. (YouTube uses Flash.) HTML5 defines a standard way to embed video in a web page, using a <video> element. But support for the <video> element itself is really only a small part of the story. Video Containers You may think of video files as “AVI files” or “MP4 files.”
A video file usually contains multiple tracks — a video track (without audio), plus one or more audio tracks (without video). There are lots of video container formats. MPEG 4, usually with an .mp4 or .m4v extension. Video Codecs When you talk about “watching a video,” you’re probably talking about a combination of one video stream and one audio stream.
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