[Bug 681105] New: negotiation problem

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=681105
  GStreamer | gstreamer (core) | 0.10.0

           Summary: negotiation problem
    Classification: Platform
           Product: GStreamer
           Version: 0.10.0
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: prashanthi.prathi at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


The question is that, we have to write a pipeline which should take video as
input, encode with h264 , and save it with .264 extension, and again we have to
decode it, and play it
for encoding we used this:
gst-launch videotestsrc ! ffmpegcolorspace ! x264enc ! filesink
location=/home/vutp/ru.264( no error at encoding)
for decoding we used this:
gst-launch filesrc location=/home/vutp/ru.264 ! ffdec_h264 ! ffmpegcolorspace !
xvimagesink(error at decoding)

Error what am getting is:
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
ERROR: from element /GstPipeline:pipeline0/ffdec_h264:ffdec_h2640: Internal
GStreamer error: negotiation problem.  Please file a bug at
http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer.
Additional debug info:
gstffmpegdec.c(2729): gst_ffmpegdec_chain ():
/GstPipeline:pipeline0/ffdec_h264:ffdec_h2640:
ffdec_h264: input format was not set before data start
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...

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