Gstreamer: pass two streams through a single element - c++

Question

Is it possible to pass two streams through a single element? I have two streams
Need to extract data from, can be destroyed in element or passed
through to a sink.
Video stream, will be edited based on the
data extracted from stream 1, passed through to autovideosink
GStreamer Core Library version 1.16.2
Written in c
chain functions:
static GstFlowReturn
gst_test2_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
{
Gsttest2 *filter;
filter = GST_TEST2 (parent);
/* just push out the incoming buffer without touching it */
return gst_pad_push (filter->srcpad, buf);
}
//second pads chain function
static GstFlowReturn
gst_test2_chain2 (GstPad * pad, GstObject * parent, GstBuffer * buf)
{
g_print("\ninside chain2\n");
Gsttest2 *filter;
filter = GST_TEST2 (parent);
return gst_pad_push (filter->srcpad2, buf);
}
//Pad templates:
static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw")
);
Extracting the data from one stream and editing the other works fine. Currently using two video/x-raw src and sink pads for testing, but the stream for extracting the data would eventually be meta/x-klv. Using a single pad and source works fine with videotestsrc, but trying to use both sources and sinks result in pipeline errors unable to link or syntax. Does gstreamer support sending two streams through a single element? Would it be simpler to destroy the buffer of the no longer needed stream in element?