Client for VNC video streaming

[SGaist]

A GStreamer pipeline is basically a list of module that you chain to each other from the source to the sink to, for example, read an audio file, decode it and finally send it to your audio output.

From a command line point of view, it's the elements built from the parameters you give to gst-launch.

For example:
Play the mp3 music file "music.mp3" using a libmad-based plugin and output to an OSS device:

gst-launch-1.0 filesrc location=music.mp3 ! mad ! audioconvert ! audioresample ! osssink

The documentation of get-launch gives you more good examples.
The API tutorials are pretty nice to get started.