该项目采用的是Android原生截图库的一部分。这是使用GCC编译器的变种编译成ARM的可执行的C代码-This project is native part of Android Screenshot Library. It s a C code compiled into ARM executable using the variant of GCC compiler

Really is a good program, Including the generalized cross-correlation function GCC time delay estimation, Wavelet packet analysis to extract vibration signal characteristic frequency.