frame_content can be either: an ActionScript source file, a bitmap file (png or jpg), or an SWF file. Non-ActionScript input files are currently only recognized by extension (png, jpg, swf). Files with other extensions will be assumed to contain ActionScript source code.
Each frame_content will be stored in a separate frame of the output.
ActionScript code is preprocessed using cpp before being compiled, this allows (among many other things) grouping multiple sourcefiles into a single frame by using #include directives. (See PREPROCESSOR below.)
Bitmap or SWF content will be stored in a MovieClip named after the corresponding input filename with path and extension removed. This allows easy referencing of the content by ActionScript code.
-o --output <output> Write SWF file to <output>. Default is ``out.swf''.
-s --size <width>x<height> Set output frame size in pixels (defaults to 640x480).
-r --frame-rate <frame_rate> Set output frame rate (defaults to 12).
-v --swfversion <swfversion> Set output SWF version (defaults to 6).
-c --compression <compression_level> Set output compression level (0 to 9). Defaults to 9. Use -1 to disable.
-b --bgcolor <background_color> Set background color using hex form (0xRRGGBB). If omitted, no SETBACKGROUNDCOLOR tag will be used.
-I <dir> Add <dir> to the include search path. The option is passed to the C preprocessor.
-D <macro>[=<def>]> Define <macro>. The option is passed to the C preprocessor.
-i --import <library.swf>:<sym>[,<sym>]> Import named symbols from the given SWF file and store them into a
-a --init-action <source.as>[:<frameno>] Compile the given source AS file as an init action for frame <frameno>.
-n --network-access network|file Force addition of a networkAccess flag with given value. For SWF8 or higher the FileAttribute tag is mandatory so will be present anyway, with a default of 'file' access. You can use this flag to both change the default for SWF8+ and to provide the optional tag for SWF8-. The tag basically determine the resources sandbox to use when the movie is loaded from the filesystem, in an exclusive manner.
-h --help Print quick help.
-V --version Print version and copyright info.
An __SWF_VERSION__ macro is automatically provided so that ActionScript code can act differently based on target player; it is set to the output SWF version (changed with -v).