An AVI file takes the form of a single chunk in a RIFF formatted file, which is then subdivided into two mandatory chunks and one optional chunk. Each chunk is identified by a FourCC tag. Its advatage is a simple architecture, due to which AVI runs on a number of different systems like Windows, Mac, Linux, Unix and is supported by all of the most popular web-browsers.'ĪVI is a derivative of the Resource Interchange File Format (RIFF), which divides a file's data into blocks, or chunks. AVI combines audio and video into a single file in a standard container to allow simultaneous playback. Developed by Microsoft in 1992, it has become so widespread that many people consider it the de-facto standard for storing video and audio information on PC. FLV files also support uncompressed audio or ADPCM format audio.ĪVI stands for Audio Video Interleave. However, audio in Flash Video FLV files recorded from the user's microphone use the proprietary Nellymoser Asao Codec. The second version is only playable in Flash Player 8 and newer - Audio in Flash Video files is usually encoded as MP3. Both these formats are bitmap tile based, can be lossy by reducing color depths and are compressed using zlib. The Flash Video FLV file format supports two versions of a so called 'screenshare' (Screen video) codec which is an encoding format designed for screencasts. Sorenson Spark is an older codec for FLV files but it is also a widely available and compatible one, because it was the first video codec supported in Flash Player. Flash Video is viewable on most operating systems except iOS, via the Adobe Flash Player and web browser plugin or one of several third-party programs.įlash Video FLV files contain video bit streams which are a proprietary variant of the H.263 video standard, under the name of Sorenson Spark (FourCC FLV1). Notable users of it include YouTube, Hulu, VEVO, Yahoo! Video, metacafe,, and many other news providers.
Flash Video has been accepted as the default online video format by many sites.
The Flash Video format is a video format defined by Adobe Systems.
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