Short answer: no.
Long: an .swf is not a video file, it’s a program that is executed by the flash web-browser plugin. A .swf might behave like a video, either because it embeds/loads a video, or generates graphics etc., but it’s not a video (it’s not like .mp4, .webm, .ogg, .flv).
SWFPut includes a .swf flash program that is a video player (and also a HTML5 player), designed for video files like .mp4 or .flv.
Finally, a .swf program can play another .swf — depending on whats in the .swf to be played — but that’s a sort of special application. SWFPut is designed to be general and reliable, so it does not attempt to play arbitrary .swf executables with unknown behavior.
-Ed
