Png decode not linked

[Dheeraj Prasanth]

Hi guys,
I am trying to recreate this pipeline : gst-launch filesrc location=/home/jango/Pictures/1.jpg ! decodebin ! queue ! videoscale ! ffmpegcolorspace ! imagefreeze ! video/x-raw-yuv, framerate=1/1, width=200, height=150 ! videomixer name=mix sink_0::alpha=0.5 ! theoraenc ! oggmux name=mux ! filesink location="1.ogg"  videotestsrc ! video/x-raw-yuv, framerate=10/1, width=640, height=360 ! mix.using python and my code is attached with this mail.
The error I am getting is : [<GError at 0x1d6bf40>, 'gstbasesrc.c(2625): gst_base_src_loop (): /GstPipeline:pipeline0/GstFileSrc:filesrc0:\nstreaming task paused, reason not-linked (-1)']<flags GST_MESSAGE_ERROR of type GstMessageType>
If anyone could point out where I am going wrong. Thanks in advance. 
Regards Dheeraj PrasanthMob : +91 8893043923Email : dheeraj at rawdatatech.com
 		 	   		  
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