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| author | Ben Avison <bavison@riscosopen.org> | 2014-03-20 18:58:40 +0000 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2014-03-26 19:54:32 +0200 |
| commit | 3b5946bccef6cd219f01d22e542ca5c6de68a7be (patch) | |
| tree | 20f5eda099a221bcfba80044c60318704b103c92 /libavcodec/ppc/fdct_altivec.c | |
| parent | b9eb03416d93a5c4ece27ffef5e6e11c81bec6fa (diff) | |
| download | ffmpeg-3b5946bccef6cd219f01d22e542ca5c6de68a7be.tar.gz | |
truehd: add hand-scheduled ARM asm version of ff_mlp_pack_output.
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: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'libavcodec/ppc/fdct_altivec.c')
0 files changed, 0 insertions, 0 deletions