Ben Avison 483321fe78 truehd: add hand-scheduled ARM asm version of ff_mlp_rematrix_channel.
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: Martin Storsjö <martin@martin.st>
2014-03-26 19:54:10 +02:00
2014-03-13 11:59:34 +01:00
2014-02-12 13:13:17 +00:00
2014-03-13 08:24:11 -04:00

Libav README
------------

1) Documentation
----------------

* Read the documentation in the doc/ directory.

2) Licensing
------------

* See the LICENSE file.
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Readme 242 MiB
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