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* sbc: slightly faster 'sbc_calc_scalefactors_neon'Siarhei Siamashka2011-03-141-15/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previous variant was basically derived from C and MMX implementations. Now new variant makes use of 'vmax' instruction, which is available in NEON and can do this job faster. The same method for calculating scale factors is also used in 'sbc_calc_scalefactors_j_neon'. Benchmarked without joint stereo on ARM Cortex-A8: == Before: == $ time ./sbcenc -b53 -s8 test.au > /dev/null real 0m3.851s user 0m3.375s sys 0m0.469s samples % image name symbol name 26260 34.2672 sbcenc sbc_pack_frame 20013 26.1154 sbcenc sbc_analyze_4b_8s_neon 13796 18.0027 sbcenc sbc_calculate_bits 8388 10.9457 no-vmlinux /no-vmlinux 3229 4.2136 sbcenc sbc_enc_process_input_8s_be_neon 2408 3.1422 sbcenc sbc_calc_scalefactors_neon 2093 2.7312 sbcenc sbc_encode == After: == $ time ./sbcenc -b53 -s8 test.au > /dev/null real 0m3.796s user 0m3.344s sys 0m0.438s samples % image name symbol name 26582 34.8726 sbcenc sbc_pack_frame 20032 26.2797 sbcenc sbc_analyze_4b_8s_neon 13808 18.1146 sbcenc sbc_calculate_bits 8374 10.9858 no-vmlinux /no-vmlinux 3187 4.1810 sbcenc sbc_enc_process_input_8s_be_neon 2027 2.6592 sbcenc sbc_encode 1766 2.3168 sbcenc sbc_calc_scalefactors_neon
* sbc: ARM NEON optimizations for input permutation in SBC encoderSiarhei Siamashka2011-03-141-0/+350
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using SIMD optimizations for 'sbc_enc_process_input_*' functions provides a modest, but consistent speedup in all SBC encoding cases. Benchmarked on ARM Cortex-A8: == Before: == $ 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 == After: == $ time ./sbcenc -b53 -s8 -j test.au > /dev/null real 0m3.989s user 0m3.602s sys 0m0.391s samples % image name symbol name 26057 32.6128 sbcenc sbc_pack_frame 20003 25.0357 sbcenc sbc_analyze_4b_8s_neon 14220 17.7977 sbcenc sbc_calculate_bits 8498 10.6361 no-vmlinux /no-vmlinux 5300 6.6335 sbcenc sbc_calc_scalefactors_j_neon 3235 4.0489 sbcenc sbc_enc_process_input_8s_be_neon 2172 2.7185 sbcenc sbc_encode
* sbc: ARM NEON optimized joint stereo processing in SBC encoderSiarhei Siamashka2011-03-141-0/+243
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* sbc: ARM NEON optimization for scale factors calculationSiarhei Siamashka2011-03-141-0/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Improves SBC encoding performance when joint stereo is not used. Benchmarked on ARM Cortex-A8: == Before: == $ time ./sbcenc -b53 -s8 test.au > /dev/null real 0m4.756s user 0m4.313s sys 0m0.438s samples % image name symbol name 2569 27.6296 sbcenc sbc_pack_frame 1934 20.8002 sbcenc sbc_analyze_4b_8s_neon 1386 14.9064 sbcenc sbc_calculate_bits 1221 13.1319 sbcenc sbc_calc_scalefactors 996 10.7120 sbcenc sbc_enc_process_input_8s_be 878 9.4429 no-vmlinux /no-vmlinux 204 2.1940 sbcenc sbc_encode 56 0.6023 libc-2.10.1.so memcpy == After: == $ time ./sbcenc -b53 -s8 test.au > /dev/null real 0m4.220s user 0m3.797s sys 0m0.422s samples % image name symbol name 2563 31.3249 sbcenc sbc_pack_frame 1892 23.1239 sbcenc sbc_analyze_4b_8s_neon 1368 16.7196 sbcenc sbc_calculate_bits 961 11.7453 sbcenc sbc_enc_process_input_8s_be 836 10.2176 no-vmlinux /no-vmlinux 262 3.2022 sbcenc sbc_calc_scalefactors_neon 199 2.4322 sbcenc sbc_encode 49 0.5989 libc-2.10.1.so memcpy
* build: move sbc related files to its own directoryLuiz Augusto von Dentz2011-03-141-0/+246
This should make it easier to apply patches from BlueZ which also uses sbc subdir for this files.
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