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• arm/aarch64 : vp9lpf : Calculate !hev directly

  12 janvier 2017, par Martin Storsjö

  arm/aarch64: vp9lpf: Calculate !hev directly
  
  Previously we first calculated hev, and then negated it.
  
  Since we were able to schedule the negation in the middle
  of another calculation, we don't see any gain in all cases.
  
  Before:                     Cortex A7      A8      A9     A53  A53/AArch64
  vp9_loop_filter_v_4_8_neon:     147.0   129.0   115.8    89.0         88.7
  vp9_loop_filter_v_8_8_neon:     242.0   198.5   174.7   140.0        136.7
  vp9_loop_filter_v_16_8_neon:    500.0   419.5   382.7   293.0        275.7
  vp9_loop_filter_v_16_16_neon:   971.2   825.5   731.5   579.0        453.0
  After:
  vp9_loop_filter_v_4_8_neon:     143.0   127.7   114.8    88.0         87.7
  vp9_loop_filter_v_8_8_neon:     241.0   197.2   173.7   140.0        136.7
  vp9_loop_filter_v_16_8_neon:    497.0   419.5   379.7   293.0        275.7
  vp9_loop_filter_v_16_16_neon:   965.2   818.7   731.4   579.0        452.0
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] libavcodec/aarch64/vp9lpf_neon.S
  • [DBH] libavcodec/arm/vp9lpf_neon.S

• dv : Don’t return EIO upon EOF

  11 janvier 2017, par John Stebbins

  dv: Don't return EIO upon EOF
  

  • [DBH] libavformat/dv.c

• aarch64 : vp9lpf : Fix broken indentation/vertical alignment

  11 janvier 2017, par Martin Storsjö

  aarch64: vp9lpf: Fix broken indentation/vertical alignment
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] libavcodec/aarch64/vp9lpf_neon.S

• aarch64 : vp9lpf : Interleave the start of flat8in into the calculation above

  10 janvier 2017, par Martin Storsjö

  aarch64: vp9lpf: Interleave the start of flat8in into the calculation above
  
  This adds lots of extra .ifs, but speeds it up by a couple cycles,
  by avoiding stalls.
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] libavcodec/aarch64/vp9lpf_neon.S

• arm : vp9lpf : Interleave the start of flat8in into the calculation above

  10 janvier 2017, par Martin Storsjö

  arm: vp9lpf: Interleave the start of flat8in into the calculation above
  
  This adds lots of extra .ifs, but speeds it up by a couple cycles,
  by avoiding stalls.
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] libavcodec/arm/vp9lpf_neon.S