Questions and postings pertaining to the development of ImageMagick, feature enhancements, and ImageMagick internals. ImageMagick source code and algorithms are discussed here. Usage questions which are too arcane for the normal user list should also be posted here.
ImageMagick uses the mpeg2decode delegate program to extract frames from an MPEG image file. The best solution may be to use this program directly to extract the frame you want.