embed youtube in c/gtk application

I want to develop an applicat开发者_开发知识库ion, for searching and watching youtube videos, in C language with GTK for UserInterface. Does API's available for embedding Youtube into C application ? Can I use GData for that ?

You need to look into gstreamer, which provides a youtube plugin. However, the standard GNOME video player, Totem, already does exactly what you're after.