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Les articles publiés sur le site

• x86 : Add missing initializations for high bit-depth sad_aligned

  3 mai 2013, par Henrik Gramner

  x86: Add missing initializations for high bit-depth sad_aligned
  

  • [DH] common/pixel.c

• x86 : 32-byte align the stack if possible

  3 mai 2013, par Jason Garrett-Glaser

  x86: 32-byte align the stack if possible
  
  Avoids the need for manual 32 byte array alignment on compilers that support
  -mpreferred-stack-boundary.
  

  • [DH] common/cpu.h
  • [DH] common/osdep.h
  • [DH] common/x86/cpu-a.asm
  • [DH] configure

• x86 : AVX2 add16x16_idct_dc

  1er mai 2013, par Jason Garrett-Glaser

  x86: AVX2 add16x16_idct_dc
  
  27 -> 19 cycles
  

  • [DH] common/dct.c
  • [DH] common/x86/dct-a.asm
  • [DH] common/x86/dct.h

• x86 : Faster high bit-depth intra_sad_x3_4x4

  1er mai 2013, par Henrik Gramner

  x86: Faster high bit-depth intra_sad_x3_4x4
  
  20->16 cycles on Ivy Bridge
  

  • [DH] common/x86/sad16-a.asm
  • [DH] encoder/analyse.c

• x86 : faster SSSE3 hpel

  1er mai 2013, par Jason Garrett-Glaser

  x86: faster SSSE3 hpel
  
  ~7% faster using the pmulhrsw trick from mc_chroma.
  

  • [DH] common/x86/const-a.asm
  • [DH] common/x86/mc-a.asm
  • [DH] common/x86/mc-a2.asm