Gstreamer

What is Gstreamer?

GStreamer is a pipeline based multimedia framework written in the C programming language with the type system based on GObject. GStreamer allows a programmer to create a variety of media-handling components, including simple audio playback, audio and video playback, recording, streaming, and editing. The pipeline design serves as a base to create many types of multimedia applications such as video editors, streaming media broadcasters, and media players.

Gstreamer Tutorials "Audio, Video Multimedia Toolkit" 
GStreamer is a multimedia framework written in the C programming language with the type system based on GObject." 

Application Development Manual: 
[HTML] http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/index.html 
[PDF] http://gstreamer.freedesktop.org/data/doc/gstreamer/stable/manual/manual.pdf 
Plugin Writer's Guide : 
[HTML] http://gstreamer.freedesktop.org/data/doc/gstreamer/head/pwg/html/index.html 
[PDF] http://gstreamer.freedesktop.org/data/doc/gstreamer/stable/pwg/pwg.pdf 

GStreamer Quick Hello World type Tutorial 
[HTML] Part1: http://bluwiki.com/go/GStreamer 
[HTML] Part2: http://bluwiki.com/go/GStreamer/C_Hello_World 

GStreamer Plugin Development Video 
* An introduction to GStreamer terms, usage and the GStreamer pipeline model. 
* Construction of simple pipelines using available GStreamer elements, building a video decoding pipeline 
* Look at the requirements for various types of processing elements: Data sources, sinks, filters, converters. 
* Development of a simple custom plugin for processing raw video frames 
* Extending the custom element in various ways, to render video effects, provide custom communication with the application. 
Participants should be familiar with GObject/GLib, as GStreamer code relies heavily on both. 
[HTML] http://lca2007.linux.org.au/talk/272.html 
[VIDEO] http://mirror.linux.org.au/pub/linux.conf.au/2007/video/talks/272.ogg 

source: http://www.gtkforums.com/about988.html