Cloning this repository:

git clone git://gitorious.org/~sumithacha/maemo-multimedia/sumithachas-gstreamer.git sumithachas-gstreamer
cd sumithachas-gstreamer

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

git remote add sumithachas-gstreamer git://gitorious.org/~sumithacha/maemo-multimedia/sumithachas-gstreamer.git
git fetch sumithachas-gstreamer
git checkout -b my-local-tracking-branch sumithachas-gstreamer/master_or_other_branch