NOISE_PRE_BITS   1515 libavcodec/aacdec_template.c                         offset[1] += get_bits(gb, NOISE_PRE_BITS) - NOISE_PRE;
NOISE_PRE_BITS    399 libavcodec/aacenc.c                         put_bits(&s->pb, NOISE_PRE_BITS, diff + NOISE_PRE);