已经变异好的，用于将android采集的PCB音频编码成G.711a/ulaw格式。接口及用法：publicclassEncG711{static{try{System.loadLibrary("G711Android");}catch(UnsatisfiedLinkErrorule){System.out.println("loadLibrary(G711Android),"+ule.getMessage());}}privatestaticnativeintlinear2ulaw(intpcm_val);privates