It is also a media container, and as such, uses codecs to compress file size. It is a popular format that delivers high-quality, well-synchronized multimedia content, primarily over the Internet. mp4.Flash Live Video (FLV) is, as the name suggests, a type of Flash video. The only official filename extension for MPEG-4 Part 14 files is. A separate hint track is used to include streaming information in the file. Like most modern container formats, MPEG-4 Part 14 allows streaming over the Internet.

It is most commonly used to store digital video and digital audio streams, especially those defined by MPEG, but can also be used to store other data such as subtitles and still images. MPEG-4 Part 14 or MP4, formally ISO/IEC 14496-14:2003, is a multimedia container format standard specified as a part of MPEG-4. Since stores like iTunes uses this container format, and it is used with iPod and PlayStation Portable (PSP), MP4 files have become more common. MP4 is a container format that can store video, audio and subtitle data (as well as more depending on content). MP4 files (MPEG-4 Part 14) are multimedia files. FLV files also support uncompressed audio or ADPCM format audio. 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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