celt_exp_rotation  421 libavcodec/opus_pvq.c     celt_exp_rotation(X, N, blocks, K, spread, 1);
celt_exp_rotation  425 libavcodec/opus_pvq.c     celt_exp_rotation(X, N, blocks, K, spread, 0);
celt_exp_rotation  439 libavcodec/opus_pvq.c     celt_exp_rotation(X, N, blocks, K, spread, 0);