Is there any way to force the creation of a keyframe when encoding? Poking around through the archive it looks like I might be able to do this by setting 'keyframe_frequency_force' to '1' for a frame and then setting it back. But to do this would I need to call 'theora_encode_init' again? Is this safe? Basically, what's the best way to arbitrarily force the creation of a keyframe within an encoding session? -david