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Building FFmpeg on XCode 4 (IOS5.0) for real iPhone only (armv7)

Using iFrameExtractor open source project for an example.
https://github.com/lajos/iFrameExtractor


1. Install macport at http://www.macports.org/install.php

2. Open terminal type:

sudo port install pkgconfig

3. Terminal type: 

git clone https://github.com/lajos/iFrameExtractor.git

cd iFrameExtractor/ffmpeg

./configure

4. Install them by using macport if the commands told you that there are any missing packages

mkdir armv7

mkdir lib

./configure --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffserver --enable-cross-compile --arch=arm --target-os=darwin --cc=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc --as='gas-preprocessor/gas-preprocessor.pl /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc' --sysroot=/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk --cpu=cortex-a8 --extra-cflags='-arch armv7' --extra-ldflags='-arch armv7 -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk' --enable-pic

make

mv libavcodec/libavcodec.a armv7/

mv libavdevice/libavdevice.a armv7/

mv libavformat/libavformat.a armv7/

mv libavutil/libavutil.a armv7/

mv libswscale/libswscale.a armv7/

cp armv7/*.a lib/

5. Open iFrameExtractor.xcodeproj and run with a REAL iPhone

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