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ffmpeg-0.6.3
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${ noResults }
6 Commits (91760a934055ab06812885ab5ec1a97a8db6d217)
| Author | SHA1 | Message | Date |
|---|---|---|---|
Janne Grunau
|
4c81613df4 |
arm: mlpdsp: handle pic offset calculation in a macro
Makes the code easier to read since it hides different offset calculations for arm and thumb mode. |
10 years ago |
|
Janne Grunau
|
581c7f0e12 |
arm: make ff_mlp_filter_channel_arm and ff_mlp_rematrix_channel_arm position independent
No significant difference in used cpu cycles on a cortex-a9. |
10 years ago |
Martin Storsjö
|
7e18a727d2 |
arm: cosmetics: Consistently use lowercase for shift operators
Signed-off-by: Martin Storsjö <martin@martin.st> |
11 years ago |
|
Martin Storsjö
|
fe67f3fbb5 |
arm: cosmetics: Fix a misaligned asm operand
Signed-off-by: Martin Storsjö <martin@martin.st> |
11 years ago |
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>
|
11 years ago |
|
Ben Avison
|
15a29c39d9 |
truehd: add hand-scheduled ARM asm version of mlp_filter_channel.
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: Martin Storsjö <martin@martin.st>
|
11 years ago |