Limit framerate when getting webcam device data.

Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>

diff -pru cheese-2.28.1/src/cheese-webcam.c cheese-2.28.1_ao2/src/cheese-webcam.c
--- cheese-2.28.1/src/cheese-webcam.c	2009-10-18 21:39:13.000000000 +0200
+++ cheese-2.28.1_ao2/src/cheese-webcam.c	2010-01-17 18:12:41.000000000 +0100
@@ -704,7 +705,7 @@ cheese_webcam_get_webcam_device_data (Ch
   GstBus              *bus;
 
   {
-    pipeline_desc = g_strdup_printf ("%s name=source device=%s ! fakesink",
+    pipeline_desc = g_strdup_printf ("%s name=source device=%s ! video/x-raw-rgb,framerate=[1/1, 30/1];video/x-raw-yuv,framerate=[1/1, 30/1] ! fakesink",
                                      webcam_device->gstreamer_src,
                                      webcam_device->video_device);
     err      = NULL;
