gst-plugins-base Elements

adder - Add N audio channels together
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 - Resample 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
ffmpegcolorspace - Converts video from one colorspace to another
gnomevfssink - Write a stream to a GnomeVFS URI
gnomevfssrc - Read from any GnomeVFS-supported file
multifdsink - Send data to multiple filedescriptors
tcpserversink - Send data as a server over the network via TCP
theoradec - decode raw theora streams to raw YUV video
theoraenc - encode raw YUV video to a theora stream
textoverlay - Adds text strings on top of a video buffer
textrender - Renders a text string to an image bitmap
timeoverlay - Overlays buffer time stamps on a video stream
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
ximagesink - A standard X based videosink
xvimagesink - A Xv based videosink