Flash Video(flash視頻)

Flash Video is a container file format used to deliver video over the Internet using Adobe Flash Player (initially produced by Macromedia) versions 6–10. Flash Video content may also be embedded within SWF files. There are two different video file formats defined by Adobe Systems and supported in Adobe Flash Player: FLV and F4V. The audio and video data within FLV files are encoded in the same way as they are within SWF files. The latter F4V file format is based on the ISO base media file format and is supported starting with Flash Player 9 update .
The format has quickly established itself as the format of choice for embedded video on the web. Notable users of the Flash Video format include YouTube, Google Video, Yahoo! Video, metacafe, Reuters.com, and many other news providers. The standards documentation for BBC Online deprecates the use of other formats previously in use on its sites such as RealVideo or WMV.
Though the Flash Video container format itself is open, the codecs used with it are patented. Flash Video FLV files usually contain material encoded with codecs following the Sorenson Spark or VP6 compression formats. The most recent public releases of Flash Player also support H.264 video and HE-AAC audio.
Flash Video is viewable on most operating systems, via the widely available Adobe Flash Player and web browser plugin, or one of several third-party programs.


Flash視頻是一個容器 文件格式 ，用於提供視頻在互聯網上使用Adobe公司 的Flash Player（初步形成由Macromedia公司 ）的版本6-10。Flash視頻內容還可以嵌入的SWF文件。 有兩種不同的視頻文件格式，由Adobe Systems的定義，並支持在Adobe Flash Player：視頻和F4V。 音頻和視頻數據在FLV文件編碼以同樣的方式，因為他們在SWF文件。 後者F4V文件格式是基於標準的基礎媒體文件格式 ，並支持開始使用Flash Player 9更新。
該格式已經迅速確立本身的格式選擇的嵌入式視頻在網絡上。 值得注意的用戶的Flash視頻格式包括YouTube上 ， 谷歌視頻 ， 雅虎！ 視頻，metacafe，Reuters.com，和許多其他新聞供應商。 該標準文檔BBC在線不贊成使用的使用其他格式以前在其網站上使用如的RealVideo或WMV。
雖然Flash視頻容器格式本身是開放的 ，該編解碼器使用它的專利 。 Flash視頻FLV文件通常包含編碼解碼器的材料後， 索倫森火花或VP6編碼壓縮格式。 最近公開發布的Flash Player也支持的H.264視頻和的HE - AAC音頻。
Flash視頻是可見在大多數操作系統上，通過廣泛使用的Adobe Flash Player和網絡瀏覽器 插件 ，或其中幾個第三方程序。