apps/ffmpeg-rockchip
1
0
Fork 0
mirror of https://github.com/nyanmisaka/ffmpeg-rockchip.git synced 2025-11-01 04:53:04 +08:00
Code Issues Packages Projects Releases Wiki Activity

x86: synth filter float: implement SSE2 version

Browse Source 
Timings for Arrandale:
          C    SSE
win32:  2108   334
win64:  1152   322

Factorizing the inner loop with a call/jmp is a >15 cycles cost, even with
the jmp destination being aligned.

Unrolling for ARCH_X86_64 is a 20 cycles gain.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Christophe Gisquet
2014-02-14 16:00:48 +00:00
committed by Michael Niedermayer
parent 5333e0dd66
commit 2cdbcc0048
4 changed files with 184 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
libavcodec/synth_filter.c
View File

@@ -61,4 +61,5 @@ av_cold void ff_synth_filter_init(SynthFilterContext *c)
c->synth_filter_float = synth_filter_float;
if (ARCH_ARM) ff_synth_filter_init_arm(c);
if (ARCH_X86) ff_synth_filter_init_x86(c);
}