diff options
Diffstat (limited to 'libavutil/float_dsp.c')
| -rw-r--r-- | libavutil/float_dsp.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/libavutil/float_dsp.c b/libavutil/float_dsp.c index 810acfe26d..05688e4c3f 100644 --- a/libavutil/float_dsp.c +++ b/libavutil/float_dsp.c @@ -92,6 +92,18 @@ static void vector_fmul_reverse_c(float *dst, const float *src0, dst[i] = src0[i] * src1[-i]; } +static void butterflies_float_c(float *restrict v1, float *restrict v2, + int len) +{ + int i; + + for (i = 0; i < len; i++) { + float t = v1[i] - v2[i]; + v1[i] += v2[i]; + v2[i] = t; + } +} + void avpriv_float_dsp_init(AVFloatDSPContext *fdsp, int bit_exact) { fdsp->vector_fmul = vector_fmul_c; @@ -101,6 +113,7 @@ void avpriv_float_dsp_init(AVFloatDSPContext *fdsp, int bit_exact) fdsp->vector_fmul_window = vector_fmul_window_c; fdsp->vector_fmul_add = vector_fmul_add_c; fdsp->vector_fmul_reverse = vector_fmul_reverse_c; + fdsp->butterflies_float = butterflies_float_c; #if ARCH_ARM ff_float_dsp_init_arm(fdsp); |