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Showing posts from May, 2016

Video formats

Summary of: Video - Dive Into HTML5 ,   Digital Video Formats  Video container files - AVI, MP4 etc Video files as “AVI files” or “MP4 files” are just container formats. Just like a ZIP file can contain any sort of file within it. A video file usually contains multiple tracks — a video track (without audio), plus one or more audio tracks (without video). Common Container Formats AVI (.avi): Can contain nearly any format. Quicktime: Most often used for the locked Apple Sorenson codec. WMV (.wmv): More or less MPEG4; can contain nearly any codec. ASF ("Advanced Streaming Format", .asf): a subset of wmv, intended primarily for streaming: an early Microsoft implementation of an MPEG4 codec. Codecs that are Also Containers MPEG-1 - It is used almost exclusively for Video Compact Disks (VCD) MPEG-2 (h.262) - It is a container format, but there is also a codec of the same name, which most people call h.262, Video Codecs A video codec is an algorithm