openH264的编译

一、 android版本
1、 arm64-v8a
make -B OS=android NDKROOT=/Users/skl/android/android-ndk-r13b/ ARCH=arm64 TARGET=android-21 NDKLEVEL=21
2、 armeabi-v7a
make -B OS=android NDKROOT=/Users/skl/android/android-ndk-r13b/ TARGET=android-21 NDKLEVEL=21
3、 armeabi
make -B OS=android NDKROOT=/Users/skl/android/android-ndk-r13b/ ARCH=arm APP_ABI=armeabi TARGET=android-21 NDKLEVEL=21
备注：ARCH的默认值为arm