| FLASH Part Of Our Life |
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FLASH – Part Of Our Life
FLASH technology surround us everywhere. 90% of web site support this technology. Why choosing to stream FLASH video instead standard MPEG-4 format. The main advantage of the FLASH technology is that it’s extremely interactive and needs less resources so the streaming is more effective. Important issues is that this format supports H.264 video encoding. The quality is amazing. The most used FLASH extensions are the .swf and .flv Let’s start with the first one. Small Web Format(.swf) intended to be small enough for publication on the web, SWF files can contain animations or applets of varying degrees of interactivity and function. SWF is also sometimes used for creating animated display graphics and menus for DVD movies, and television commercials. Originally limited to presenting vector based objects and images in a simple sequential manner, the newer versions of the format allow audio, video and many different possible forms of interaction with the end user.
Flash Video(.flv) is the name of a file format used to deliver video over the Internet using Adobe Flash Player. Flash Video files contain video bit streams which are a variant of the H.263 video standard, under the name of Sorenson Spark. Flash Player 8 and newer revisions support the playback of On2 TrueMotion VP6 video bit streams. The Flash Video file format supports two versions of a so called 'screenshare' codec which is an encoding format designed for screencasts. Both these formats are bitmap tile based, can be lossy by reducing color depths and are compressed using zlib. The second version is only playable in Flash Player 8 and newer.