cant display the video

[d]

Hi,
I have a pipeline that work fine if I write the video to a file.
but when I try to display the video on the screen, I keep get this error:

Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
ERROR: from element /GstPipeline:pipeline0/GstFileSrc:filesrc0: Internal
data flow error.
Additional debug info:
gstbasesrc.c(2633): gst_base_src_loop ():
/GstPipeline:pipeline0/GstFileSrc:filesrc0:
streaming task paused, reason not-negotiated (-4)
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...

this is the pipeline:

gst-launch-0.10 filesrc location=video.pcap ! pcapparse src-port=58694 !
"application/x-rtp, payload=(int)96, media=(string)video,
clock-rate=(int)90000, encoding-name=(string)H264" ! rtph264depay !
"video/x-h264, width=320, height=240, framerate=(fraction)30/1" !
autovideosink


am I doing something wrong here?
thanks



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