Gstreamer 1.0 appsink/ appsrc (using C++ to interface with gstreamer) documentation

Hi,

Can someone tell me where I can find a documentation (detailed information) on how to use Gstreamer 1.0 appsink/ appsrc. All what I found are examples written by developers but what I need an explanation on how to write the C++ codes and not just examples.

Thanks in advance for your help.

Regards.

Please check app