FFT: factor a shuffle out of the inner loop and merge it into fft_permute.
authorLoren Merritt <lorenm@u.washington.edu>
Sat, 12 Feb 2011 11:48:16 +0000 (11:48 +0000)
committerJanne Grunau <janne-ffmpeg@jannau.net>
Sun, 13 Feb 2011 14:36:39 +0000 (15:36 +0100)
commite6b1ed693ae4098e6b9eabf938fc31ec0b09b120
tree8afa645b29c35cde5a286b29cbab58fbbed4c1ed
parent3c33c0e26325f189dbf7f212f8e9042feb83bfb0
FFT: factor a shuffle out of the inner loop and merge it into fft_permute.

6% faster SSE FFT on Conroe, 2.5% on Penryn.

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
libavcodec/arm/fft_init_arm.c
libavcodec/fft.c
libavcodec/fft.h
libavcodec/mdct.c
libavcodec/x86/fft.c
libavcodec/x86/fft_mmx.asm