gistfile1.c

#include <stdio.h>
#include <stdlib.h>
#include <gst/gst.h>
#include <gstreamer-0.10/gst/gstpad.h>
#include <gstreamer-0.10/gst/gstelement.h>

typedef struct
{
  const gchar *padname;
  GstPad      *target;
  GstElement  *bin;
} dynamicLink;

int main (int argc, char *argv[]) 
{
  GstElement *myBin;  
  gst_init (&argc, &argv);
  
  myBin = (GstElement *) 
          gst_parse_launch (
          "videotestsrc ! queue ! s.sink0 videotestsrc pattern=18 ! queue ! s.sink1 input-selector name=s ! videoscale  ! video/x-raw-yuv,width=320,height=240,framerate=30/1 ! queue ! tee name=t ! queue ! xvimagesink name=gl t. ! queue ! fakesink"
          , NULL);
  gst_element_set_state (myBin, GST_STATE_PLAYING);
  
  GstElement *mySink = gst_bin_get_by_name(GST_BIN (myBin), "s");
  //gchar  *name;
  //GstPad *myPad = gst_element_get_static_pad(mySink, &name);
  g_object_set (G_OBJECT (mySink), "active-pad", 
          gst_element_get_pad (mySink, "sink0"), NULL);
  
  gint signal = 0;
  gchar * switchTo = "sink1";
  
  while(TRUE) 
  {    
    usleep(9000000);    
    if (strcmp("sink1", switchTo) == 0 ) 
    {
      //g_print("%s ",switchTo);
      g_object_set (G_OBJECT (mySink), "active-pad",
              gst_element_get_pad (mySink, switchTo), NULL);
      switchTo = "sink0";
      g_print("[delay]: sink1 match found\n");
    } else { 
      switchTo = "sink1";
      g_print("[delay]: sink1 match not found\n");
    }
  }
  
  return 1;
}