iOS 记录一下编译ffmpeg

1.下载ffmpeg2.下载文件：https://github.com/libav/gas-preprocessor复制gas-preprocessor.pl到/usr/sbin下，修改文件权限：chmod 777 /usr/local/bin/gas-preprocessor.pl3.安装yasm终端命令：curl http://www.tortall.net/projects/yasm/releases/yasm-1.2.0.tar.gz >yasm.tar.gztar xzvf yasm.tar.gzcd yasm-1.2.0./configuremakesudo make install//感谢http://blog.csdn.net/jijiji000111/article/details/490036474.下载脚本https://github.com/kewlbear/FFmpeg-iOS-build-script解压 找到build-ffmpeg.sh运行./build-ffmpeg.sh//sourse="FFmpeg"  如果有意外 检查这个变量5.等待脚本运行完成后  ffmpeg－iso里的库就可以拖入工程了6.拖入工程后 添加以下库frameworks: MediaPlayer, CoreAudio, AudioToolbox, Accelerate, QuartzCore,OpenGLES and libz.dylib .libs: libkxmovie.a, libavcodec.a, libavformat.a, libavutil.a, libswscale.a,libswresample.alibs:libbz2.dylib, libz.dylib, libiconv.dylib7.在target--buildsetting中搜索Header Search Paths，并在Header Search Paths下面添加源码ffmpeg的lib路径和include路径