How to add FFmpeg to iOS project

gistfile1.txt

Here are steps:
1. Build FFmpeg for iOS
  There some scripts to build FFmpeg for iOS
  ex: https://github.com/kewlbear/FFmpeg-iOS-build-script
2. After build complete, copy all *.a to your iOS project folder. 
  They will be automatically add to Linked Frameworks and Libraries (in Project settings -> General)
  ex: libavutil.a, libavformat.a, libavcodec.a,...
3. Add depedencies to Linked Frameworks and Libraries
  Add libz.dylib (or libz.tbd), libiconv.dylib
4. Go to Project settings -> Build Settings, add the path which contains all *.a files in your iOS project folder to Library Search Paths
  There's a tip: $(PROJECT_DIR)/ProjectName/some/path/
5. Still living in Build Settings, add the path which contains FFmpeg header files (where you run build script) to Header Search Paths.
  Or you can copy FFmpeg folder to your iOS project folder and then add this path to Header Search Paths (easier to manage)
6. Build & run your project.