[Bug 740509] New: Seek fail on stream H264/AAC

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=740509
  GStreamer | gst-rtsp-server | 1.4.4

           Summary: Seek fail on stream H264/AAC
    Classification: Platform
           Product: GStreamer
           Version: 1.4.4
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: critical
          Priority: Normal
         Component: gst-rtsp-server
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: marpm at hotmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


When testing gst-rtsp-server using the test-mp4 example, I am seeing odd
behavior with seek operation. 

If connect with a RTSP Client (ffplay, VLC) and seek randomly, then the server
freeze and print the message of error:

0:00:32.948940541 12191      0x219a320 ERROR       rtspsessionmedia
rtsp-session-media.c:334:gst_rtsp_session_media_get_rtpinfo:<GstRTSPSessionMedia at 0x7f3958043b60>
media was not prepared

Scenario: -> Mp4 file (1h:35min duration)
          -> Seeked to 60% of duration (~ 57 minutes)
          -> RTP over UDP on localhost
          -> ffplay
          -> Xubuntu 14.04

I believe it may be a problem of Race Condition, because this bug is not
constant  but occurs frequently.

I have the same behavior on previous versions of gst-rtsp-server 1.4.4

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