4/30/09

flash knowledges

As we know, Flash is the most suitable format to play animated video, particularly over the internet. This is mainly because the Flash player plug-in is used widely and almost installed in all internet browsers like IE, Firefox, Safari, Opera, Chrome, etc. As a browser plug-in, it owns the advantage to be compatible with your PC or Macs.

The Flash files can stream to the users’ browser when embedded into a webpage. That indicates you do not have to download the entire video before viewing. The video begins playing when some parts have been downloaded.

Two types for Flash movies: SWF and FLV (Flash Video)

SWF includes the interactive objects like the playback button, process bar or some textboxes. However, this kind of Flash file has a limit for the frames. They can only contain 16000 frames. That means the movie length will be limited. Therefore it is not suitable for longer movies.

FLV (Flash Video) is just the video content. It doesn’t contain any playback controls. It can only be played in local PC if it is not embedded into a player. However, it has no limit for the movie length. So many people will adopt this method to play the movies online that the SWF file, namely the player calls the video content, FLV file.

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