added README

Author: kewlbear

README.md

@@ -0,0 +1,24 @@
+FFmpeg iOS build script
+=======================
+
+This is a shell script to build FFmpeg libraries for iOS apps.
+
+Tested with:
+
+* FFmpeg git commit f18ccb529fb7231f9d40814fbf843d10d9434b43
+* Xcode 4.6.3
+
+Usage
+-----
+
+* To build armv7s libraries:
+
+        ./build-ffmpeg.sh armv7s
+
+* To build fat libraries for armv7 and i386 (simulator):
+
+        ./build-ffmpeg.sh armv7 i386
+
+* To build fat libraries from separately built thin libraries:
+
+        ./build-ffmpeg.sh lipo