The third optional sub-block is identified by the idx1 tag that indexex the offsets of data blocks within a file. this block contains the actual audio-visual data which makes up the AVI movie. The second sub-block is identified by the movi tag. This sub-block is the file header that contains metadata about the video, such as its height, width and frame rate. The first sub-block is identified by the hdrl tag. This is then subdivided into two mandatory blocks and one optional block. An AVI file takes the form of a single block in a Resource Interchange File Format (RIFF). Choose Files From Device From Dropbox From Google Drive From Url Max file size 1GB. Each block is identified by a fourCC tag. Easily convert files from one format to another, online. AVI runs on numerous systems like Windows, Unix, Mac, Linux and it is also supported by most of popular web browsersĪVI was derived from the Resource Interchange File Format that divides a file’s data into chunks or blocks. AVI combines Video and Audio into a single file in a standard container to allow simultaneous playback. It was developed by Microsoft in 1992and it has become widespread as it is considered by many people the de-facto standard for video and audio information storage on the PC. More information on AVI, Audio Video Interleave (.avi)ĪVI is an abbreviation for Audio Video Interleave.
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