FLV, Flash video (.flv)

The FLV Video file format

The Flash Video Format by Adobe Systems is commonly used for online videos for sites such as YouTube, Hulu, Vevo, and many other streaming video services. Nearly every operating system (with the exception of iOS) can read and view FLV files using Adobe Flash Player (including browser plug-ins) and third-party software. iPhone and Android operated mobile devices can play FLV files using open source software and specific browsers. iOS still has some problems with Flash. The Android version “Jelly Bean” allows users to utilize FLV files. Files with the FLV extension are only viewable with FLV player programs. Screen recording of FLV videos are possible with screen capturing and recording programs.

Technical details of FLV files

FLV files using the H.263 standard under the Sorenson Spark (FourCC FLV1) codec are commonly considered to be compatible due to a) them being the first codec files supported with the Flash Player, and b) the heavy usage throughout other versions being able to support the codec. Audio in FLV videos are often in the MP3 file type, but audio can be recorded over the video by using a microphone using the Nellymoser Asao Codec. Screenshare is possible in two different ways: both using bitmap tile and lossy compression due to reducing color depth. The main different between the two ways to Screenshare is that the second version is only compatible with Flash Player 8.

More information about the FLV file format

File extension .flv
File category Video
Example file Download example.flv file (796.54 KiB)
Download example_small.flv file (576.40 KiB)
Associated programs FFDShow
Microsoft Windows Photo Gallery Viewer
VideoLAN VLC Media Player
Windows Media Player
Useful links More information on FLV
File conversion Convert a file to FLV
Developer Adobe Systems
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