diff options
| author | Siarhei Siamashka <siarhei.siamashka@nokia.com> | 2011-03-14 15:27:30 -0300 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.dentz-von@nokia.com> | 2011-03-14 15:27:30 -0300 |
| commit | 718fe73cab5d2b9d77ffc94b7141e7be44305968 (patch) | |
| tree | 4ca25c54bad4184b160a5cba9a094cc2f84db4de /m4/acx_libwrap.m4 | |
| parent | 177948a6f23cbc58530ae394f791ba9fd764899a (diff) | |
sbc: ARM NEON optimized joint stereo processing in SBC encoder
Improves SBC encoding performance when joint stereo is used, which
is a typical A2DP configuration.
Benchmarked on ARM Cortex-A8:
== Before: ==
$ time ./sbcenc -b53 -s8 -j test.au > /dev/null
real 0m5.239s
user 0m4.805s
sys 0m0.430s
samples % image name symbol name
26083 25.0856 sbcenc sbc_pack_frame
21548 20.7240 sbcenc sbc_calc_scalefactors_j
19910 19.1486 sbcenc sbc_analyze_4b_8s_neon
14377 13.8272 sbcenc sbc_calculate_bits
9990 9.6080 sbcenc sbc_enc_process_input_8s_be
8667 8.3356 no-vmlinux /no-vmlinux
2263 2.1765 sbcenc sbc_encode
696 0.6694 libc-2.10.1.so memcpy
== After: ==
$ time ./sbcenc -b53 -s8 -j test.au > /dev/null
real 0m4.389s
user 0m3.969s
sys 0m0.422s
samples % image name symbol name
26234 29.9625 sbcenc sbc_pack_frame
20057 22.9076 sbcenc sbc_analyze_4b_8s_neon
14306 16.3393 sbcenc sbc_calculate_bits
9866 11.2682 sbcenc sbc_enc_process_input_8s_be
8506 9.7149 no-vmlinux /no-vmlinux
5219 5.9608 sbcenc sbc_calc_scalefactors_j_neon
2280 2.6040 sbcenc sbc_encode
661 0.7549 libc-2.10.1.so memcpy
Diffstat (limited to 'm4/acx_libwrap.m4')
0 files changed, 0 insertions, 0 deletions