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| author | Loren Merritt <lorenm@u.washington.edu> | 2006-08-19 02:42:20 +0000 |
|---|---|---|
| committer | Loren Merritt <lorenm@u.washington.edu> | 2006-08-19 02:42:20 +0000 |
| commit | 652c59b967d7bbcc3322ba4f5c8c0bfe02794a25 (patch) | |
| tree | c999c7cad03e02b8828e022844db4a394d245dd5 | |
| parent | 1e4ecf26f599c894c24aaf9b5918630656c352c2 (diff) | |
| download | ffmpeg-652c59b967d7bbcc3322ba4f5c8c0bfe02794a25.tar.gz | |
use ff_fft_calc_3dn2 instead of sse on a K8.
1.5% faster vorbis.
Originally committed as revision 6024 to svn://svn.ffmpeg.org/ffmpeg/trunk
| -rw-r--r-- | libavcodec/fft.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/libavcodec/fft.c b/libavcodec/fft.c index bc514724c0..7716dd2e5e 100644 --- a/libavcodec/fft.c +++ b/libavcodec/fft.c @@ -68,17 +68,13 @@ int ff_fft_init(FFTContext *s, int nbits, int inverse) if (has_vectors & MM_3DNOWEXT) s->imdct_calc = ff_imdct_calc_3dn2; if (has_vectors & MM_3DNOWEXT) - /* 3DNowEx for Athlon(XP) */ + /* 3DNowEx for K7/K8 */ s->fft_calc = ff_fft_calc_3dn2; else if (has_vectors & MM_3DNOW) /* 3DNow! for K6-2/3 */ s->fft_calc = ff_fft_calc_3dn; - if (has_vectors & MM_SSE2) - /* SSE for P4/K8 */ - s->fft_calc = ff_fft_calc_sse; - else if ((has_vectors & MM_SSE) && - s->fft_calc == ff_fft_calc_c) - /* SSE for P3 */ + else if (has_vectors & MM_SSE) + /* SSE for P3/P4 */ s->fft_calc = ff_fft_calc_sse; #else /* HAVE_MMX */ if (has_vectors & MM_ALTIVEC) |