Libjpeg https://blog.csdn.net/hqiong208/article/details/53667661 ndk环境的配置（windows）：https://app.yinxiang.com/shard/s59/nl/13502021/eaa7e3ea-9526-4f97-af7d-c413dea1cf98?title=Android%20NDK%E5%BC%80%E5%8F%91%EF%BC%88%E4%BA%8C%EF%BC%89%20%E4%BD%BF%E7%94%A8ndk-build%E6%9E%84%E5%BB%BA%E5%B7%A5%E5%85%B7%E8%BF%9B%E8%A1%8CNDK%E5%BC%80%E5%8F%91%20-%20%E6%8E%98%E9%87%91