gst-plugins-base Elements

adder - Add N audio channels together
appsrc - Allow the application to feed buffers to a pipeline
appsink - Allow the application to get access to raw buffer
alsamixer - Control sound input and output levels with ALSA
alsasink - Output to a sound card via ALSA
alsasrc - Read from a sound card via ALSA
audioconvert - Convert audio to different formats
audioresample - Resamples audio
audiotestsrc - Creates audio test signals of given frequency and volume
cdparanoiasrc - Read audio from CD in paranoid mode
clockoverlay - Overlays the current clock time on a video stream
decodebin - Autoplug and decode to raw media
decodebin2 - Autoplug and decode to raw media
ffmpegcolorspace - Converts video from one colorspace to another
gdpdepay - Depayloads GStreamer Data Protocol buffers
gdppay - Payloads GStreamer Data Protocol buffers
giosink - Write to any GIO-supported location
giosrc - Read from any GIO-supported location
giostreamsink - Write to any GIO stream
giostreamsrc - Read from any GIO stream
gnomevfssink - Write a stream to a GnomeVFS URI
gnomevfssrc - Read from any GnomeVFS-supported file
multifdsink - Send data to multiple filedescriptors
oggdemux - demux ogg streams (info about ogg: http://xiph.org)
oggmux - mux ogg streams (info about ogg: http://xiph.org)
playbin - Autoplug and play media from an uri
playbin2 - Autoplug and play media from an uri
tcpclientsrc - Receive data as a client over the network via TCP
tcpclientsink - Send data as a client over the network via TCP
tcpserversrc - Receive data as a server over the network via TCP
tcpserversink - Send data as a server over the network via TCP
textoverlay - Adds text strings on top of a video buffer
textrender - Renders a text string to an image bitmap
theoradec - decode raw theora streams to raw YUV video
theoraenc - encode raw YUV video to a theora stream
theoraparse - parse raw theora streams
timeoverlay - Overlays buffer time stamps on a video stream
uridecodebin - Autoplug and decode an URI to raw media
videorate - Drops/duplicates/adjusts timestamps on video frames to make a perfect stream
videoscale - Resizes video
videotestsrc - Creates a test video stream
volume - Set volume on audio/raw streams
vorbisdec - decode raw vorbis streams to float audio
vorbisenc - Encodes audio in Vorbis format
vorbisparse - parse raw vorbis streams
vorbistag - Retags vorbis streams
ximagesink - A standard X based videosink
xvimagesink - A Xv based videosink