From 5959bfaca396ecaf63a8123055f499688b79cae3 Mon Sep 17 00:00:00 2001 From: "Ronald S. Bultje" Date: Sun, 20 Jan 2013 15:41:14 -0800 Subject: floatdsp: move butterflies_float from dsputil to avfloatdsp. This makes wmadec/enc, twinvq and mpegaudiodec (i.e. mp2/mp3) independent of dsputil. --- libavutil/float_dsp.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'libavutil/float_dsp.c') diff --git a/libavutil/float_dsp.c b/libavutil/float_dsp.c index aa5293710b..c6e2b41d66 100644 --- a/libavutil/float_dsp.c +++ b/libavutil/float_dsp.c @@ -89,6 +89,18 @@ 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; @@ -98,6 +110,7 @@ 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); -- cgit v1.2.3