creating a new gstelement object tee

I have created a new object of GstElement tee. The code is below here:

GstElement *teeElement = gst开发者_如何转开发_element_factory_make ("tee", "camera_tee");

But, GstElement is not created at all. What can be the reason for this.

What library and/or header file has to be included for the purpose.

Regards, iSight

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I have to initialize gstreammer using gst_init.