走刀口

下载mingw并安装，然后下载faac库，版本为Version 1.28 bootstrapped TAR.BZ2 Package，下载后进行解压，运行MinGW，进入到faac-1.28目录中，此时如果直接configure编译，会提示

mpeg4ip_win32.h:70: error: `_TRUNCATE' was not declared in this scope
mpeg4ip_win32.h:70: error: `vsnprintf_s' was not declared in this scope
mpeg4ip_win32.h:70: warning: unused variable '_TRUNCATE'
mpeg4ip_win32.h:70: warning: unused variable 'vsnprintf_s'
In file included from mp4common.h:32,
                 from 3gp.cpp:28:
mp4util.h: In function `void Indent(FILE*, u_int8_t)':
mp4util.h:82: error: `fprintf_s' was not declared in this scope
mp4util.h:82: warning: unused variable 'fprintf_s'
make[3]: *** [3gp.o] Error 1
make[3]: Leaving directory `/d/faac-1.28/common/mp4v2'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/d/faac-1.28/common'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/d/faac-1.28'
make: *** [all] Error 2

这是缺少faac的补丁，下载faac-1.28.diff，然后将其复制到faac-1.28目录中，执行下面的命令

patch -p1 < faac-1.28.diff

如下图所示

然后再执行

./bootstrap
./configure --prefix=/home --with-mp4v2
make
make install

加入mp4v2是为了支持MP4容器的AAC音频，上面的命令执行完成后，就可以得到faac的lib和dll文件。