Digital video files involve complex modern technology. If you’re working with video in some way, it’s worth understanding how they function. Video files are contained within something called a Multimedia Container. This should be most familiar to you as the suffix on a file: common video container formats include .AVI, .MP4, .MKV, and .MOV. Uncompressed video is simply a series of still images at 30 frames per second, or whatever frame rate you recorded at. It’s extremely high-quality, but it’s also very large; the file sizes can be ridiculous, especially with high-resolution video. To rectify this problem, video compression was invented. A codec is an encoder/decoder; it’s a piece of software or hardware that can create (or encode) video into specific types of compression formats, and can also play back (or decode) these formats for watching a video. Fundamentally, H264 (sometimes called MPEG-4 AVC) is a video compression format, a standardfor encoding video that allows content creators to produce video that can be read (or decoded) by a wide range of consumer devices and applications. H264 sets a standard procedure for encoding a video. Most high-quality video cameras record in an uncompressed format. This captures the maximum amount of detail possible, but results in huge file sizes that are impractical to put on a DVD or even Blu-Ray Disc or stream over the internet. x264 is a specific codec, in this case a software package, that is designed to encode video using the H264 standard. In other words, x264 is a specific software application designed to create H264-encoded videos. x264 is the most popular and powerful implementation of H264, used in a variety of popular web video services like YouTube, Facebook, Vimeo, and Hulu, as well as by television broadcasters. The codec is also highly efficient; using x264, a modest modern computer can encode 4 or more 1080p high-definition video streams in real time. The introduction of this codec to AmigaOS 4.x is a big step forward for future usage(internet,video editing) of the the operating system.