ffmpeg linux編譯

yasm，aptitude install pkg-config

x264，http://www.videolan.org/developers/x264.html，

./configure --enable-shared --prefix=【自定義目錄】

make

make install

export PKG_CONFIG_PATH=【上面定義的目錄裏的那個pkgconfig目錄】

ffmpeg,https://github.com/ffmpeg

./configure --enable-shared --enable-libx264 --enable-gpl --prefix=【自定義目錄】

make

make install