On Sat, Jul 26, 2014 at 11:50:05AM +0200, Mickaël Raulet wrote: > Hi, > > > Only 8-bit and 10-bit idct_dc() functions are included (adding others > > should be trivial). > > > > Benchmarks on an Intel Core i5-4200U: > > > > idct8x8_dc > > SSE2 MMXEXT C > > cycles 22 26 57 > > > > idct16x16_dc > > AVX2 SSE2 C > > cycles 27 32 249 > > > > idct32x32_dc > > AVX2 SSE2 C > > cycles 62 126 1375 > > > > Signed-off-by: James Almer <jamr...@gmail.com> > > --- > > libavcodec/hevcdsp.h | 2 - > > libavcodec/x86/hevc_idct.asm | 249 > > +++++++++++------------------------------- > > libavcodec/x86/hevcdsp.h | 28 ----- > > libavcodec/x86/hevcdsp_init.c | 95 +++++----------- > > libavutil/x86/x86util.asm | 4 +- > > 5 files changed, 93 insertions(+), 285 deletions(-) > > > > patch ok. we are currently working in transform_add.
applied thanks [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Asymptotically faster algorithms should always be preferred if you have asymptotical amounts of data
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