Potential challenges to the preservation of SWF files are discussed in Richard Entlich's article "Flash in the Pan or Around for the Long Haul?". Seven SWF motion picture and two SWF interactive titles were collected by the Motion Picture, Broadcasting, and Recorded Sound Division in 2002. Explanatory note: SWF files are typically derived from ("save as") a FLA file. Macromedia Flash FLA Project File Format. Nellymoser Asao (speech compression) audio content, not documented here. Raw PCM sampled audio content, not documented here. Screen Video Bitstream Format (ScreenVideo), not documented here. Macromedia Flash SWF File Format, Version 8 Macromedia Flash (SWF) Versions 3, 4, 5, and 6, not documented here The documentation for the Flash (SWF) format, version 8, was disseminated from the Adobe Web site but still carried the Macromedia brand on the cover sheet. In 2005, Adobe purchased Macromedia and a branding changeover began. The swf extension was originally used for files played by Macromedia's Shockwave browser plug-in see Notes for additional history information. Windows versions of projector files are executables with an exe extension. SWF files may be combined with a runtime version of the Flash player, resulting in a file type called projector. SWF files are typically derived from a FLA file (Macromedia Flash Project File) they may also be produced in other ways using third-party software.
ActionScripts may reference objects within the SWF file or resources external to it, e.g., Macromedia FLV video files. Very simple playback (with a repeat loop) is controlled by a timeline interactive examples (even very simple ones) use both a timeline and ActionScript, a scripting language similar to JavaScript. Commentators describe the technology as "non-native" to the Web. Macromedia Flash SWF File Format, Version 7ĭelivers vector graphics (especially animations) and other data types, including "bitmapped" video, over the Internet to the Macromedia Flash Player.
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