ROUND_MUL16        35 libavcodec/opus_pvq.c     x = (32767-x) + ROUND_MUL16(x, (-7651 + ROUND_MUL16(x, (8277 + ROUND_MUL16(-626, x)))));
ROUND_MUL16        47 libavcodec/opus_pvq.c            ROUND_MUL16(isin, ROUND_MUL16(isin, -2597) + 7932) -
ROUND_MUL16        48 libavcodec/opus_pvq.c            ROUND_MUL16(icos, ROUND_MUL16(icos, -2597) + 7932);
ROUND_MUL16       668 libavcodec/opus_pvq.c             delta = ROUND_MUL16((N - 1) << 7, celt_log2tan(iside, imid));