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    • Ben Avison's avatar
      armv6: Accelerate butterflies_float · 5a272190
      Ben Avison authored
      I benchmarked the result by measuring the number of gperftools samples that
      hit anywhere in the AAC decoder (starting from aac_decode_frame()) or
      specifically in butterflies_float_c() / ff_butterflies_float_vfp() for the
      same sample AAC stream:
      
                         Before          After
                         Mean   StdDev   Mean   StdDev  Confidence  Change
      Audio decode       1542.8 43.7     1470.5 41.5    100.0%      +4.9%
      butterflies_float  130.0  11.9     70.2   12.1    100.0%      +85.2%
      Signed-off-by: 's avatarMartin Storsjö <martin@martin.st>
      5a272190
    • Ben Avison's avatar
      armv6: Accelerate vector_fmul_window · 5edad2c4
      Ben Avison authored
      I benchmarked the result by measuring the number of gperftools samples that
      hit anywhere in the AAC decoder (starting from aac_decode_frame()) or
      specifically in vector_fmul_window_c() / ff_vector_fmul_window_vfp() for the
      same sample AAC stream:
      
                          Before          After
                          Mean   StdDev   Mean   StdDev  Confidence  Change
      Audio decode        1598.2 47.4     1529.2 25.4    100.0%      +4.5%
      vector_fmul_window  244.0  22.1     188.9  22.3    100.0%      +29.2%
      Signed-off-by: 's avatarMartin Storsjö <martin@martin.st>
      5edad2c4