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• aarch64 : vp9itxfm : Optimize 16x16 and 32x32 idct dc by unrolling

  4 janvier 2017, par Martin Storsjö

  aarch64: vp9itxfm: Optimize 16x16 and 32x32 idct dc by unrolling
  
  This work is sponsored by, and copyright, Google.
  
  Before:                           Cortex A53
  vp9_inv_dct_dct_16x16_sub1_add_neon:   235.3
  vp9_inv_dct_dct_32x32_sub1_add_neon:   555.1
  After:
  vp9_inv_dct_dct_16x16_sub1_add_neon:   180.2
  vp9_inv_dct_dct_32x32_sub1_add_neon:   475.3
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] libavcodec/aarch64/vp9itxfm_neon.S

• aarch64 : vp9itxfm : Update a comment to refer to a register with a different name

  3 janvier 2017, par Martin Storsjö

  aarch64: vp9itxfm: Update a comment to refer to a register with a different name
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] libavcodec/aarch64/vp9itxfm_neon.S

• aarch64 : vp9itxfm : Use the right lane sizes in 8x8 for improved readability

  3 janvier 2017, par Martin Storsjö

  aarch64: vp9itxfm: Use the right lane sizes in 8x8 for improved readability
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] libavcodec/aarch64/vp9itxfm_neon.S

• aarch64 : vp9itxfm : Share instructions for loading idct coeffs in the 8x8 function

  3 janvier 2017, par Martin Storsjö

  aarch64: vp9itxfm: Share instructions for loading idct coeffs in the 8x8 function
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] libavcodec/aarch64/vp9itxfm_neon.S

• arm : vp9itxfm : Share instructions for loading idct coeffs in the 8x8 function

  3 janvier 2017, par Martin Storsjö

  arm: vp9itxfm: Share instructions for loading idct coeffs in the 8x8 function
  
  Signed-off-by: Martin Storsjö <martin@martin.st>
  

  • [DBH] libavcodec/arm/vp9itxfm_neon.S