The code snippets in Basic Tutorial indicate wrong line of code
The code snippets in Basic Tutorial indicate wrong line of code. [For example],(https://gstreamer.freedesktop.org/documentation/tutorials/basic/concepts.html#properties) the illustration of the property should use the following code.
/* Modify the source's properties */
g_object_set (source, "pattern", 0, NULL);
I think the whole Basic Tutorial have the same issue, might be dut to example sorce code have be modified.