lame移植步骤

解压libmp3lame 到jni目录. 
拷贝 lame.h 
创建Android.mk 

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE    := mp3lame
LOCAL_SRC_FILES := bitstream.c fft.c id3tag.c mpglib_interface.c presets.c  quantize.c   reservoir.c tables.c  util.c  VbrTag.c encoder.c  gain_analysis.c lame.c  newmdct.c   psymodel.c quantize_pvt.c set_get.c  takehiro.c vbrquantize.c version.c
include $(BUILD_SHARED_LIBRARY)


删除 GNU autotools, Makefile.am Makefile.in libmp3lame_vc8.vcproj logoe.ico depcomp, folders i386 等无用文件
编辑 jni/utils.h, 
把 extern ieee754_float32_t fast_log2(ieee754_float32_t x);
替换为 extern float fast_log2(float x);

编译库文件