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| author | Loren Merritt <lorenm@u.washington.edu> | 2008-08-12 00:33:34 +0000 |
|---|---|---|
| committer | Loren Merritt <lorenm@u.washington.edu> | 2008-08-12 00:33:34 +0000 |
| commit | 46803f4f67e821f6e62793d876be164fc04622b2 (patch) | |
| tree | cc86c780395e6a14bcd92b37da29ac8194715ce3 /libavcodec/fft.c | |
| parent | 49c0dd754c85e2cbb7dfe8d63dbb7141cddaeb61 (diff) | |
| download | ffmpeg-46803f4f67e821f6e62793d876be164fc04622b2.tar.gz | |
optimize imdct_half:
remove tmp buffer.
skip fft reinterleave pass, leaving data in a format more convenient for simd.
merge post-rotate with post-reorder.
Originally committed as revision 14700 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/fft.c')
| -rw-r--r-- | libavcodec/fft.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/fft.c b/libavcodec/fft.c index c8acfc6017..b659de16a1 100644 --- a/libavcodec/fft.c +++ b/libavcodec/fft.c @@ -106,6 +106,8 @@ int ff_fft_init(FFTContext *s, int nbits, int inverse) s->fft_calc = ff_fft_calc_3dn2; } else if (has_vectors & MM_3DNOW) { /* 3DNow! for K6-2/3 */ + s->imdct_calc = ff_imdct_calc_3dn; + s->imdct_half = ff_imdct_half_3dn; s->fft_calc = ff_fft_calc_3dn; } #elif defined HAVE_ALTIVEC && !defined ALTIVEC_USE_REFERENCE_C_CODE |