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>Chapter 15. Linking elements</H1
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>15.1. Making simple links</A
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>
You can link two pads with:
</P
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CLASS="programlisting"
> GstPad *srcpad, *sinkpad;
srcpad = gst_element_get_pad (element1, "src");
sinpad = gst_element_get_pad (element2, "sink");
// link them
gst_pad_link (srcpad, sinkpad);
....
// and unlink them
gst_pad_unlink (srcpad, sinkpad);
</PRE
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>
A convenient shortcut for the above code is done with the gst_element_link_pads ()
function:
</P
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CLASS="programlisting"
>
// link them
gst_element_link_pads (element1, "src", element2, "sink");
....
// and unlink them
gst_element_unlink_pads (element1, "src", element2, "sink");
</PRE
><P
> An even more convenient shortcut for single-source, single-sink elements is the
gst_element_link () function:
</P
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CLASS="programlisting"
>
// link them
gst_element_link (element1, element2);
....
// and unlink them
gst_element_unlink (element1, element2);
</PRE
><P
> If you have more than one element to link, the gst_element_link_many () function takes
a NULL-terminated list of elements:
</P
><PRE
CLASS="programlisting"
>
// link them
gst_element_link_many (element1, element2, element3, element4, NULL);
....
// and unlink them
gst_element_unlink_many (element1, element2, element3, element4, NULL);
</PRE
><P
>
You can query if a pad is linked with GST_PAD_IS_LINKED (pad).
</P
><P
>
To query for the <CODE
CLASS="classname"
>GstPad</CODE
> a pad is linked to, use
gst_pad_get_peer (pad).
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