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• openssl : Support version 1.1.0.

  9 octobre 2016, par Matt Oliver

  openssl: Support version 1.1.0.
  
  Further simplifications by Martin Storsjö, to minimize the
  diff.
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] configure
  • [DBH] libavformat/tls_openssl.c

• arm : vp9 : Add NEON itxfm routines

  8 octobre 2016, par Martin Storsjö

  arm: vp9: Add NEON itxfm routines
  
  This work is sponsored by, and copyright, Google.
  
  For the transforms up to 8x8, we can fit all the data (including
  temporaries) in registers and just do a straightforward transform
  of all the data. For 16x16, we do a transform of 4x16 pixels in
  4 slices, using a temporary buffer. For 32x32, we transform 4x32
  pixels at a time, in two steps of 4x16 pixels each.
  
  Examples of relative speedup compared to the C version, from checkasm:
                           Cortex       A7     A8     A9    A53
  vp9_inv_adst_adst_4x4_add_neon:     3.39   5.83   4.17   4.01
  vp9_inv_adst_adst_8x8_add_neon:     3.79   4.86   4.23   3.98
  vp9_inv_adst_adst_16x16_add_neon:   3.33   4.36   4.11   4.16
  vp9_inv_dct_dct_4x4_add_neon:       4.06   6.16   4.59   4.46
  vp9_inv_dct_dct_8x8_add_neon:       4.61   6.01   4.98   4.86
  vp9_inv_dct_dct_16x16_add_neon:     3.35   3.44   3.36   3.79
  vp9_inv_dct_dct_32x32_add_neon:     3.89   3.50   3.79   4.42
  vp9_inv_wht_wht_4x4_add_neon:       3.22   5.13   3.53   3.77
  
  Thus, the speedup vs C code is around 3-6x.
  
  This is mostly marginally faster than the corresponding routines
  in libvpx on most cores, tested with their 32x32 idct (compared to
  vpx_idct32x32_1024_add_neon). These numbers are slightly in libvpx's
  favour since their version doesn't clear the input buffer like ours
  do (although the effect of that on the total runtime probably is
  negligible.)
  
                             Cortex       A7       A8       A9      A53
  vp9_inv_dct_dct_32x32_add_neon:    18436.8  16874.1  14235.1  11988.9
  libvpx vpx_idct32x32_1024_add_neon 20789.0  13344.3  15049.9  13030.5
  
  Only on the Cortex A8, the libvpx function is faster. On the other cores,
  ours is slightly faster even though ours has got source block clearing
  integrated.
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] libavcodec/arm/Makefile
  • [DBH] libavcodec/arm/vp9dsp_init_arm.c
  • [DBH] libavcodec/arm/vp9itxfm_neon.S

• emms : Give apriv_emms_yasm() a more general name

  8 octobre 2016, par Diego Biurrun

  emms: Give apriv_emms_yasm() a more general name
  

  • [DBH] libavutil/x86/emms.asm
  • [DBH] libavutil/x86/emms.h

• build : Add VSX-OBJS to SUBDIR_VARS

  8 octobre 2016, par Diego Biurrun

  build: Add VSX-OBJS to SUBDIR_VARS
  
  The variable needs to be reset for each subdirectory.
  

  • [DBH] Makefile

• build : Drop duplicate asm recipe

  8 octobre 2016, par Diego Biurrun

  build: Drop duplicate asm recipe
  
  And move the asm recipe to the top-level Makefile next to the other
  local pattern rules for .o files.
  

  • [DBH] Makefile
  • [DBH] library.mak
  • [DBH] tests/checkasm/x86/Makefile