LEVEL_PLUS_1POINT5DB   73 libavcodec/ac3dec.c     LEVEL_PLUS_1POINT5DB,
LEVEL_PLUS_1POINT5DB   65 libavcodec/ac3enc.c     LEVEL_PLUS_3DB,  LEVEL_PLUS_1POINT5DB,  LEVEL_ONE,       LEVEL_MINUS_4POINT5DB,