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| author | Siarhei Siamashka <siarhei.siamashka@nokia.com> | 2011-03-14 15:35:03 -0300 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.dentz-von@nokia.com> | 2011-03-14 15:45:27 -0300 |
| commit | 82ef8346d8b962fedff58b6cd579b1bb25227c49 (patch) | |
| tree | 5903a4876d6c60a17a374dcbc511d714634ad98b /src/modules/bluetooth/sbc/sbc_primitives.c | |
| 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/modules/bluetooth/sbc/sbc_primitives.c')
| -rw-r--r-- | src/modules/bluetooth/sbc/sbc_primitives.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/modules/bluetooth/sbc/sbc_primitives.c b/src/modules/bluetooth/sbc/sbc_primitives.c index 82cd399d..66e20a0a 100644 --- a/src/modules/bluetooth/sbc/sbc_primitives.c +++ b/src/modules/bluetooth/sbc/sbc_primitives.c @@ -33,6 +33,7 @@ #include "sbc_primitives.h" #include "sbc_primitives_mmx.h" #include "sbc_primitives_neon.h" +#include "sbc_primitives_armv6.h" /* * A reference C code of analysis filter with SIMD-friendly tables @@ -539,6 +540,9 @@ void sbc_init_primitives(struct sbc_encoder_state *state) #endif /* ARM optimizations */ +#ifdef SBC_BUILD_WITH_ARMV6_SUPPORT + sbc_init_primitives_armv6(state); +#endif #ifdef SBC_BUILD_WITH_NEON_SUPPORT sbc_init_primitives_neon(state); #endif |