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author | Siarhei Siamashka <siarhei.siamashka@nokia.com> | 2011-03-14 15:35:03 -0300 |
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committer | Luiz Augusto von Dentz <luiz.dentz-von@nokia.com> | 2011-03-14 15:45:27 -0300 |
commit | 82ef8346d8b962fedff58b6cd579b1bb25227c49 (patch) | |
tree | 5903a4876d6c60a17a374dcbc511d714634ad98b /src/pulsecore/pstream.h | |
parent | 51d5f3c9fda454e78e87e05029a34b56b0815186 (diff) |
sbc: ARMv6 optimized version of analysis filter for SBC encoder
The optimized filter gets enabled when the code is compiled
with -mcpu=/-march options set to target the processors which
support ARMv6 instructions. This code is also disabled when
NEON is used (which is a lot better alternative). For additional
safety ARM EABI is required and thumb mode should not be used.
Benchmarks from ARM11:
== 8 subbands ==
$ time ./sbcenc -b53 -s8 -j test.au > /dev/null
real 0m 35.65s
user 0m 34.17s
sys 0m 1.28s
$ time ./sbcenc.armv6 -b53 -s8 -j test.au > /dev/null
real 0m 17.29s
user 0m 15.47s
sys 0m 0.67s
== 4 subbands ==
$ time ./sbcenc -b53 -s4 -j test.au > /dev/null
real 0m 25.28s
user 0m 23.76s
sys 0m 1.32s
$ time ./sbcenc.armv6 -b53 -s4 -j test.au > /dev/null
real 0m 18.64s
user 0m 15.78s
sys 0m 2.22s
Diffstat (limited to 'src/pulsecore/pstream.h')
0 files changed, 0 insertions, 0 deletions