ffmpeg for android library

NDK+android的安装，配置过程。。以及简单的实例-NDK,install，preference steps，and some simple examples

fs2410下借用SDL.FFMPEG库实现一个触摸屏的播放器程序。请参照源码在相应目录下自己放置一个要播放的MPG文件。-fs2410 under SDL.FFMPEG library to borrow a player touch screen procedure. Please refer to the corresponding source directory in their own place to play a MPG file.