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| author | Ronald S. Bultje <rsbultje@gmail.com> | 2012-07-31 20:23:39 -0700 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2012-07-31 21:20:47 -0700 |
| commit | b6a3849adb0381a437952a785d39e22cb3b00282 (patch) | |
| tree | 4f2ec873af703a90ba0a7018b618438559a8b33d /libavcodec/x86/fft.c | |
| parent | ddbe71b44fc810cc39b576bf0047f89090cfabcb (diff) | |
| download | ffmpeg-b6a3849adb0381a437952a785d39e22cb3b00282.tar.gz | |
fft: port FFT/IMDCT 3dnow functions to yasm, and disable on x86-64.
64-bit CPUs always have SSE available, thus there is no need to compile
in the 3dnow functions. This results in smaller binaries.
Diffstat (limited to 'libavcodec/x86/fft.c')
| -rw-r--r-- | libavcodec/x86/fft.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/x86/fft.c b/libavcodec/x86/fft.c index 6349c239c3..f1c1c9d36b 100644 --- a/libavcodec/x86/fft.c +++ b/libavcodec/x86/fft.c @@ -25,6 +25,7 @@ av_cold void ff_fft_init_mmx(FFTContext *s) { #if HAVE_YASM int has_vectors = av_get_cpu_flags(); +#if ARCH_X86_32 if (has_vectors & AV_CPU_FLAG_3DNOW && HAVE_AMD3DNOW) { /* 3DNow! for K6-2/3 */ s->imdct_calc = ff_imdct_calc_3dnow; @@ -37,6 +38,7 @@ av_cold void ff_fft_init_mmx(FFTContext *s) s->imdct_half = ff_imdct_half_3dnow2; s->fft_calc = ff_fft_calc_3dnow2; } +#endif if (has_vectors & AV_CPU_FLAG_SSE && HAVE_SSE) { /* SSE for P3/P4/K8 */ s->imdct_calc = ff_imdct_calc_sse; |