Converting embedded images
You can convert an image in a .swf file to a .png file and insert a reference to it in the .svg. The converted image file is assigned a name based on the name of the .svg file and a counter value. For example, if the .svg file is named movie.svg, the fifth converted image is named movie00005.png.
To specify in which folder to save converted image files, use the -d <imagedir> command-line option.