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diff --git a/libavutil/x86/float_dsp_init.c b/libavutil/x86/float_dsp_init.c
index d259a36..3729d91 100644
--- a/libavutil/x86/float_dsp_init.c
+++ b/libavutil/x86/float_dsp_init.c
@@ -38,11 +38,13 @@ void ff_float_dsp_init_x86(AVFloatDSPContext *fdsp)
if (mm_flags & AV_CPU_FLAG_SSE && HAVE_SSE) {
fdsp->vector_fmul = ff_vector_fmul_sse;
- fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_sse;
+ // buggy under 64-bit Windows: http://bugzilla.libav.org/show_bug.cgi?id=336
+ // fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_sse;
}
if (mm_flags & AV_CPU_FLAG_AVX && HAVE_AVX) {
fdsp->vector_fmul = ff_vector_fmul_avx;
- fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_avx;
+ // buggy under 64-bit Windows: http://bugzilla.libav.org/show_bug.cgi?id=336
+ // fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_avx;
}
#endif
}
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