GStreamer Core Plugins 0.10 Plugins Reference Manual

gstreamer Elements
  capsfilter — pass data though unmodified, but enforces format limmits
  fakesrc — Generate (meaningless) buffers
  fakesink — black hole for data
  fdsink — write to a unix file descriptor
  fdsrc — read from a unix file descriptor
  filesrc — read from arbitrary point in a file
  filesink — write stream to a file
  identity — pass data through without modification
  queue — Simple asynchronous data queue.
  tee — 1-to-N pipe fitting
  typefind — Finds the media type of a stream
gstreamer Plugins
  coreelements — standard GStreamer elements
  coreindexers — GStreamer core indexers