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authorSiarhei Siamashka <siarhei.siamashka@nokia.com>2011-03-14 15:35:03 -0300
committerLuiz Augusto von Dentz <luiz.dentz-von@nokia.com>2011-03-14 15:45:27 -0300
commit82ef8346d8b962fedff58b6cd579b1bb25227c49 (patch)
tree5903a4876d6c60a17a374dcbc511d714634ad98b /src/pulsecore/strbuf.c
parent51d5f3c9fda454e78e87e05029a34b56b0815186 (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/strbuf.c')
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