Cloning this repository:

git clone git://gitorious.org/gst-plugins-bad-audio-codec-base-classes/gst-plugins-bad-audio-codec-base-classes.git gst-plugins-bad-audio-codec-base-classes
cd gst-plugins-bad-audio-codec-base-classes

Add this repository as a remote to an existing local repository:

git remote add gst-plugins-bad-audio-codec-base-classes git://gitorious.org/gst-plugins-bad-audio-codec-base-classes/gst-plugins-bad-audio-codec-base-classes.git
git fetch gst-plugins-bad-audio-codec-base-classes
git checkout -b my-local-tracking-branch gst-plugins-bad-audio-codec-base-classes/master_or_other_branch