Paste your Life pattern below, or (preferably) use the frames version. RLE and "picture" formats are supported. Patterns can be copied-and-pasted from Life32, for example.
Read the glossary to find out what all that silly terminology means.
You can also view some precomputed sample results.
Note that your pattern must actually be an oscillator. A pattern that evolves into an oscillator after a few generations will not work.
The C source code for Oscillizer (including a Win32 command-line binary) is available: