gstreamer Elements

capsfilter — Pass data without modification, limiting formats
fakesrc — Push empty (no data) buffers around
fakesink — Black hole for data
fdsink — Write data to a file descriptor
fdsrc — Read from a file descriptor
filesrc — Read from arbitrary point in a file
filesink — Write stream to a file
funnel — N-to-1 pipe fitting
identity — Pass data without modification
input-selector — N-to-1 input stream selector
multiqueue — Multiple data queue
output-selector — 1-to-N output stream selector
queue — Simple data queue
queue2 — Simple data queue
tee — 1-to-N pipe fitting
typefind — Finds the media type of a stream
valve — Drops buffers and events or lets them through