M_SQRT1_2        1060 libavcodec/dca.c                             M_SQRT1_2*s->scale_bias /*pcm_to_double[s->source_pcm_res] */ ,
M_SQRT1_2         217 libavcodec/fft.c #define sqrthalf (float)M_SQRT1_2
M_SQRT1_2         109 libavcodec/nellymoserdec.c                 aptr[j] = M_SQRT1_2*pows[j];
M_SQRT1_2          41 libavutil/mathematics.h #ifndef M_SQRT1_2