- rb_hash_aset (comp, ID2SYM (rb_intern ("lossy")), INT2FIX (lossy));
- rb_hash_aset (comp, ID2SYM (rb_intern ("level")), INT2FIX (level));
- rb_hash_aset (comp, ID2SYM (rb_intern ("quality")), INT2FIX (quality));
+ rb_hash_aset (comp, sym_lossy, INT2FIX (lossy));
+ rb_hash_aset (comp, sym_level, INT2FIX (level));
+ rb_hash_aset (comp, sym_quality, INT2FIX (quality));