ENGINE_ID_UNKNOWN
case ENGINE_ID_UNKNOWN:
case ENGINE_ID_UNKNOWN:
case ENGINE_ID_UNKNOWN:
cntl.engine_id = ENGINE_ID_UNKNOWN;
if (engine != ENGINE_ID_UNKNOWN) {
enc110->base.preferred_engine = ENGINE_ID_UNKNOWN;
enc110->base.preferred_engine = ENGINE_ID_UNKNOWN;
cntl.engine_id = ENGINE_ID_UNKNOWN;
if (engine != ENGINE_ID_UNKNOWN) {
enc10->base.preferred_engine = ENGINE_ID_UNKNOWN;
enc10->base.preferred_engine = ENGINE_ID_UNKNOWN;
cntl.engine_id = ENGINE_ID_UNKNOWN;
cntl.engine_id = ENGINE_ID_UNKNOWN;
return ENGINE_ID_UNKNOWN;