[FFmpeg-devel] [PATCH 0/5] x86: hevc_mc: some simd for x86_32
christophe.gisquet at gmail.com
Sat Feb 7 19:49:35 CET 2015
The first 3 patches try to reduce GPR usage, while the fourth one
reduces the xmm count. It's strange that this count was modified but
not set to lower: I may be missing something here.
The last one then uses them to have some MC SIMD for x86_32.
That last patch is maybe not so worth it, as that's 1-4% runtime
improvement for something far from realtime decoding.
Christophe Gisquet (5):
x86: hevc_mc: fewer gpr autoloads for _v filters
x86: hevc_mc: remove lea in EPEL_LOAD
x86: hevc_mc: save 1 gpr in epel filter loading
x86: hevc_mc: fewer xmm regs used in epel h/v
x86: hevc_mc: put_pixels and 1d epel for x86_32
libavcodec/x86/hevc_mc.asm | 137 ++++++++++++++++++++++++------------------
libavcodec/x86/hevcdsp.h | 4 +-
libavcodec/x86/hevcdsp_init.c | 53 ++++++++++------
3 files changed, 114 insertions(+), 80 deletions(-)
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