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• arm : vp9itxfm : Do a simpler half/quarter idct16/idct32 when possible

  22 novembre 2016, par Martin Storsjö

  arm: vp9itxfm: Do a simpler half/quarter idct16/idct32 when possible
  
  This work is sponsored by, and copyright, Google.
  
  This avoids loading and calculating coefficients that we know will
  be zero, and avoids filling the temp buffer with zeros in places
  where we know the second pass won't read.
  
  This gives a pretty substantial speedup for the smaller subpartitions.
  
  The code size increases from 12388 bytes to 19784 bytes.
  
  The idct16/32_end macros are moved above the individual functions; the
  instructions themselves are unchanged, but since new functions are added
  at the same place where the code is moved from, the diff looks rather
  messy.
  
  Before:                              Cortex A7       A8       A9      A53
  vp9_inv_dct_dct_16x16_sub1_add_neon:     273.0    189.5    212.0    235.8
  vp9_inv_dct_dct_16x16_sub2_add_neon:    2102.1   1521.7   1736.2   1265.8
  vp9_inv_dct_dct_16x16_sub4_add_neon:    2104.5   1533.0   1736.6   1265.5
  vp9_inv_dct_dct_16x16_sub8_add_neon:    2484.8   1828.7   2014.4   1506.5
  vp9_inv_dct_dct_16x16_sub12_add_neon:   2851.2   2117.8   2294.8   1753.2
  vp9_inv_dct_dct_16x16_sub16_add_neon:   3239.4   2408.3   2543.5   1994.9
  vp9_inv_dct_dct_32x32_sub1_add_neon:     758.3    456.7    864.5    553.9
  vp9_inv_dct_dct_32x32_sub2_add_neon:   10776.7   7949.8   8567.7   6819.7
  vp9_inv_dct_dct_32x32_sub4_add_neon:   10865.6   8131.5   8589.6   6816.3
  vp9_inv_dct_dct_32x32_sub8_add_neon:   12053.9   9271.3   9387.7   7564.0
  vp9_inv_dct_dct_32x32_sub12_add_neon:  13328.3  10463.2  10217.0   8321.3
  vp9_inv_dct_dct_32x32_sub16_add_neon:  14176.4  11509.5  11018.7   9062.3
  vp9_inv_dct_dct_32x32_sub20_add_neon:  15301.5  12999.9  11855.1   9828.2
  vp9_inv_dct_dct_32x32_sub24_add_neon:  16482.7  14931.5  12650.1  10575.0
  vp9_inv_dct_dct_32x32_sub28_add_neon:  17589.5  15811.9  13482.8  11333.4
  vp9_inv_dct_dct_32x32_sub32_add_neon:  18696.2  17049.2  14355.6  12089.7
  
  After:
  vp9_inv_dct_dct_16x16_sub1_add_neon:     273.0    189.5    211.7    235.8
  vp9_inv_dct_dct_16x16_sub2_add_neon:    1203.5    998.2   1035.3    763.0
  vp9_inv_dct_dct_16x16_sub4_add_neon:    1203.5    998.1   1035.5    760.8
  vp9_inv_dct_dct_16x16_sub8_add_neon:    1926.1   1610.6   1722.1   1271.7
  vp9_inv_dct_dct_16x16_sub12_add_neon:   2873.2   2129.7   2285.1   1757.3
  vp9_inv_dct_dct_16x16_sub16_add_neon:   3221.4   2520.3   2557.6   2002.1
  vp9_inv_dct_dct_32x32_sub1_add_neon:     753.0    457.5    866.6    554.6
  vp9_inv_dct_dct_32x32_sub2_add_neon:    7554.6   5652.4   6048.4   4920.2
  vp9_inv_dct_dct_32x32_sub4_add_neon:    7549.9   5685.0   6046.9   4925.7
  vp9_inv_dct_dct_32x32_sub8_add_neon:    8336.9   6704.5   6604.0   5478.0
  vp9_inv_dct_dct_32x32_sub12_add_neon:  10914.0   9777.2   9240.4   7416.9
  vp9_inv_dct_dct_32x32_sub16_add_neon:  11859.2  11223.3   9966.3   8095.1
  vp9_inv_dct_dct_32x32_sub20_add_neon:  15237.1  13029.4  11838.3   9829.4
  vp9_inv_dct_dct_32x32_sub24_add_neon:  16293.2  14379.8  12644.9  10572.0
  vp9_inv_dct_dct_32x32_sub28_add_neon:  17424.3  15734.7  13473.0  11326.9
  vp9_inv_dct_dct_32x32_sub32_add_neon:  18531.3  17457.0  14298.6  12080.0
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] libavcodec/arm/vp9itxfm_neon.S

• w32pthreads : Fix function pointer casts

  22 novembre 2016, par Diego Biurrun

  w32pthreads: Fix function pointer casts
  
  This eliminates a handful of warnings at every inclusion of the header.
  

  • [DBH] compat/w32pthreads.h

• configure : Handle dxva2 optional components in the standard way

  22 novembre 2016, par Diego Biurrun

  configure: Handle dxva2 optional components in the standard way
  

  • [DBH] configure

• configure : Disable warning C4703 with MSVC

  22 novembre 2016, par Diego Biurrun

  configure: Disable warning C4703 with MSVC
  
  This disables warnings about potentially uninitialized local pointer
  variables.  Disabling the warning is in line with what we do for gcc.
  

  • [DBH] configure

• configure : Remove old avisynth support leftover

  22 novembre 2016, par Diego Biurrun

  configure: Remove old avisynth support leftover
  

  • [DBH] configure