rv1126-external/common_algorithm/audio/Two_mic_beamform

Rockchip TWO MIC BEAMFORM算法

compile

mkdir -p build cd build cmake .. -DCMAKE_TOOLCHAIN_FILE=~/video/rv1109/buildroot/output/rockchip_puma_toolchain/host/share/buildroot/toolchainfile.cmake make

优化选项： -O3 -mfpu=neon -mfloat-abi=hard

资源占用情况

测试环境

• RV1808 EVB

• cpu: 关闭ARM核保留一个核，定频 1Ghz

  echo userspace > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

  echo 1008000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed

  echo 0 > /sys/devices/system/cpu/cpu1/online

• ddr : LPDDR3 933MHz

Test

• 内存占用情况：RSS 3.9M

• 计算耗时 cpu 90%

  • ./test_beamform hw:0,0 beamform.wav hw_params format set period_size = 256 buffer_size = 1024 set threshold 1 alsa_name =hw:0,0 format=2 num_channels=2 sample_rate=16000 sample_bits=16 num_samples=2147483647 Succeed to initialize skv_preprocessor! elapse 9 ms elapse 9 ms elapse 9 ms elapse 9 ms elapse 9 ms elapse 9 ms elapse 9 ms elapse 9 ms elapse 9 ms elapse 9 ms elapse 14 ms elapse 14 ms elapse 14 ms elapse 14 ms elapse 14 ms elapse 14 ms elapse 14 ms elapse 14 ms elapse 14 ms

• 稳定性测试

  • 多实例循环压力测试通过：没有内存泄露，可以稳定长时运行

  cat /proc/1194/status

  / # cat /proc/656/status Name: test_beamform State: R (running) Tgid: 656 Ngid: 0 Pid: 656 PPid: 609 TracerPid: 0 Uid: 0 0 0 0 Gid: 0 0 0 0 FDSize: 64 Groups: VmPeak: 5404 kB VmSize: 5404 kB VmLck: 0 kB VmPin: 0 kB VmHWM: 3924 kB VmRSS: 3924 kB VmData: 476 kB VmStk: 132 kB VmExe: 12 kB VmLib: 4112 kB VmPTE: 28 kB VmPMD: 8 kB VmSwap: 0 kB Threads: 1 SigQ: 0/7992 SigPnd: 0000000000000000 ShdPnd: 0000000000000000 SigBlk: 0000000000000000 SigIgn: 0000000000000000 SigCgt: 0000000180000000 CapInh: 0000000000000000 CapPrm: 0000003fffffffff CapEff: 0000003fffffffff CapBnd: 0000003fffffffff CapAmb: 0000000000000000 Speculation_Store_Bypass: unknown Cpus_allowed: 3 Cpus_allowed_list: 0-1 Mems_allowed: 1 Mems_allowed_list: 0 voluntary_ctxt_switches: 875 nonvoluntary_ctxt_switches: 9