How to quickly compile FFmpeg with libx264 (x264, H.264)

1. Compile x264. See How to quickly compile libx264 for instructions.

In order to quickly compile your ​libx264, you can type the following commands in your shell:

# cd /my/path/where/i/keep/compiled/stuff
# git clone git://git.videolan.org/x264.git
# cd x264
# ./configure --enable-static --enable-shared
# make
# make install
# ldconfig

If you get a message like this:

Found yasm 0.x.x.xxxx
Minimum version is yasm-1.0.0
If you really want to compile without asm, configure with --disable-asm.

that means that you have an old version of yasm on your system, so you should update it. The quickest way to do so is like this:

# git clone git://github.com/yasm/yasm.git
# cd yasm
# ./autogen.sh
# ./configure
# make
# make install

and after that, just repeat the configure, make, and make install steps for libx264 and it should be fine this time.

2. Compile FFmpeg:

   # cd /my/path/where/i/keep/compiled/stuff
   # git clone git://source.ffmpeg.org/ffmpeg.git
   # cd ffmpeg
   # ./configure --enable-gpl --enable-libx264
   # make
   # make install
   # ldconfig