1. 01 4月, 2014 1 次提交
  2. 31 3月, 2014 13 次提交
  3. 30 3月, 2014 3 次提交
  4. 29 3月, 2014 2 次提交
  5. 28 3月, 2014 11 次提交
  6. 27 3月, 2014 9 次提交
    • D
    • V
      fate: add Alias PIX tests · 9718c31e
      Vittorio Giovara 提交于
      9718c31e
    • V
      Alias PIX image encoder and decoder · e50f5d3c
      Vittorio Giovara 提交于
      e50f5d3c
    • B
      truehd: add hand-scheduled ARM asm version of ff_mlp_pack_output. · 3b5946bc
      Ben Avison 提交于
      Profiling results for overall decode and the output_data function in
      particular are as follows:
      
                    Before          After
                    Mean   StdDev   Mean   StdDev  Confidence  Change
      6:2 total     339.6  15.1     329.3  16.0    95.8%       +3.1%  (insignificant)
      6:2 function  24.6   6.0      9.9    3.1     100.0%      +148.5%
      8:2 total     324.5  15.5     323.6  14.3    15.2%       +0.3%  (insignificant)
      8:2 function  20.4   3.9      9.9    3.4     100.0%      +104.7%
      6:6 total     572.8  20.6     539.9  24.2    100.0%      +6.1%
      6:6 function  54.5   5.6      16.0   3.8     100.0%      +240.9%
      8:8 total     741.5  21.2     702.5  18.5    100.0%      +5.6%
      8:8 function  63.9   7.6      18.4   4.8     100.0%      +247.3%
      
      The assembly version has also been tested with a fuzz tester to ensure that
      any combinations of inputs not exercised by my available test streams still
      generate mathematically identical results to the C version.
      Signed-off-by: NMartin Storsjö <martin@martin.st>
      3b5946bc
    • B
      truehd: break out part of output_data into platform-specific callback. · b9eb0341
      Ben Avison 提交于
      Verified with profiling that this doesn't have a measurable effect upon
      overall performance.
      Signed-off-by: NMartin Storsjö <martin@martin.st>
      b9eb0341
    • B
      truehd: tune VLC decoding for ARM. · fcf5fc44
      Ben Avison 提交于
      Profiling on a Raspberry Pi revealed the best performance to correspond
      with VLC_BITS = 5. Results for overall audio decode and the get_vlc2 function
      in particular are as follows:
      
                    Before          After
                    Mean   StdDev   Mean   StdDev  Confidence  Change
      6:2 total     348.8  20.1     339.6  15.1    88.8%       +2.7%  (insignificant)
      6:2 function  38.1   8.1      26.4   4.1     100.0%      +44.5%
      8:2 total     339.1  15.4     324.5  15.5    99.4%       +4.5%
      8:2 function  33.8   7.0      27.3   5.6     99.7%       +23.6%
      6:6 total     604.6  20.8     572.8  20.6    100.0%      +5.6%
      6:6 function  95.8   8.4      68.9   8.2     100.0%      +39.1%
      8:8 total     766.4  17.6     741.5  21.2    100.0%      +3.4%
      8:8 function  106.0  11.4     86.1   9.9     100.0%      +23.1%
      Signed-off-by: NMartin Storsjö <martin@martin.st>
      fcf5fc44
    • B
      truehd: add hand-scheduled ARM asm version of ff_mlp_rematrix_channel. · 483321fe
      Ben Avison 提交于
      Profiling results for overall audio decode and the rematrix_channels function
      in particular are as follows:
      
                    Before          After
                    Mean   StdDev   Mean   StdDev  Confidence  Change
      6:2 total     370.8  17.0     348.8  20.1    99.9%       +6.3%
      6:2 function  46.4   8.4      45.8   6.6     18.0%       +1.2%  (insignificant)
      8:2 total     343.2  19.0     339.1  15.4    54.7%       +1.2%  (insignificant)
      8:2 function  38.9   3.9      40.2   6.9     52.4%       -3.2%  (insignificant)
      6:6 total     658.4  15.7     604.6  20.8    100.0%      +8.9%
      6:6 function  109.0  8.7      59.5   5.4     100.0%      +83.3%
      8:8 total     896.2  24.5     766.4  17.6    100.0%      +16.9%
      8:8 function  223.4  12.8     93.8   5.0     100.0%      +138.3%
      
      The assembly version has also been tested with a fuzz tester to ensure that
      any combinations of inputs not exercised by my available test streams still
      generate mathematically identical results to the C version.
      Signed-off-by: NMartin Storsjö <martin@martin.st>
      483321fe
    • B
      truehd: break out part of rematrix_channels into platform-specific callback. · 4e5aa080
      Ben Avison 提交于
      Verified with profiling that this doesn't have a measurable effect upon
      overall performance.
      Signed-off-by: NMartin Storsjö <martin@martin.st>
      4e5aa080
    • B
      truehd: add hand-scheduled ARM asm version of mlp_filter_channel. · 15a29c39
      Ben Avison 提交于
      Profiling results for overall audio decode and the mlp_filter_channel(_arm)
      function in particular are as follows:
      
                    Before          After
                    Mean   StdDev   Mean   StdDev  Confidence  Change
      6:2 total     380.4  22.0     370.8  17.0    87.4%       +2.6%  (insignificant)
      6:2 function  60.7   7.2      36.6   8.1     100.0%      +65.8%
      8:2 total     357.0  17.5     343.2  19.0    97.8%       +4.0%  (insignificant)
      8:2 function  60.3   8.8      37.3   3.8     100.0%      +61.8%
      6:6 total     717.2  23.2     658.4  15.7    100.0%      +8.9%
      6:6 function  140.4  12.9     81.5   9.2     100.0%      +72.4%
      8:8 total     981.9  16.2     896.2  24.5    100.0%      +9.6%
      8:8 function  193.4  15.0     103.3  11.5    100.0%      +87.2%
      
      Experiments with adding preload instructions to this function yielded no
      useful benefit, so these have not been included.
      
      The assembly version has also been tested with a fuzz tester to ensure that
      any combinations of inputs not exercised by my available test streams still
      generate mathematically identical results to the C version.
      Signed-off-by: NMartin Storsjö <martin@martin.st>
      15a29c39
  7. 26 3月, 2014 1 次提交