/* check if old sys matches and assumes corrupted input */
if (sys && buf_size == sys->frame_size)
return sys;
-#endif
/* hack for trac issue #217, dv files created with QuickTime 3 */
if ((frame[3] & 0x7f) == 0x3f && frame[80 * 5 + 48 + 3] == 0xff)
return &dv_profiles[dsf];
+#endif
return NULL;
}