[gstreamer-bugs] [Bug 581329] New: rtspsrc: NAT dummy packets not being sent

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-good | Ver: git
           Summary: rtspsrc: NAT dummy packets not being sent
           Product: GStreamer
           Version: git
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: elwintro at gmail.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: 2.23/2.24
   GNOME milestone: Unspecified


Please describe the problem:
A logic problem in gst_rtspsrc_send_dummy_packets() prevents dummy udp packets
being sent when "nat-method" is set to "dummy"

Steps to reproduce:
>From behind a NAT router that is not firewalling RTSP/RPT traffic, issue the
gst-launch command:

gst-launch rtspsrc
location="rtsp://ewan.rtsp-youtube.l.google.com/CkELENy73wIaOAkNHBGWSDl4oBMYESARFEIJbXYtZ29vZ2xlSARSBXdhdGNoWglDbGlja0xpbmtgqqug0Nj3uroLDA==/0/0/0/video.3gp"
nat-method="dummy" name=d d. ! rtpmp4depay ! faad ! alsasink d. ! rtpmp4vdepay
! ffdec_mpeg4 ! xvimagesink

Actual results:
The RTSP session is negotiated correctly, but no RTP data is received on the
client ports from the server. No dummy UDP packets are seen to be sent from the
client when monitoring network traffic in wireshark.

Expected results:
Dummy UDP should be seen in the network traffic coming from the client on the
client RTP ports negotiated with the server. After that, the RTP streams should
be processed by the gstreamer pipeline.

Does this happen every time?
Yes.

Other information:


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