Getting FFmpeg
Please refer to http://www.ffmpeg.org/download.html
FFmpeg SVN
In order to use the standard SVN client to check out the source code:
svn checkout svn://svn.ffmpeg.org/ffmpeg/trunk ffmpeg
Subversion Command-Line Client
We need a Subversion Command-Line Client tool which could be called in bash scripts.
Download CollabNet Subversion Command-Line Client v1.6.12 (for Windows) and then install it and add the installation target folder into the PATH environment variable of Winodws.