[Bug 671295] New: rtpmanager: packets dropped on slow networks

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=671295
  GStreamer | gst-plugins-good | git

           Summary: rtpmanager: packets dropped on slow networks
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: lists at svrinformatica.it
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Hi,

using this pipeline:

gst-launch -v -m -t rtspsrc location=rtsp://192.168.2.136/axis-media/media.amp
! queue ! rtph264depay ! fakesink

on slow networks (umts for example) cause this logs:

0:00:03.035935576 13005      0x1bf7d40 WARN      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1463:gst_rtp_jitter_buffer_chain:<rtpjitterbuffer0> Packet
#45629 too late as #45630 was already popped, dropping
0:00:03.036940670 13005      0x1bf7d40 WARN               rtpsource
rtpsource.c:1095:rtp_source_process_rtp: duplicate or reordered packet
0:00:03.036964695 13005      0x1bf7d40 WARN      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1463:gst_rtp_jitter_buffer_chain:<rtpjitterbuffer0> Packet
#45630 too late as #45630 was already popped, dropping
0:00:03.038725061 13005      0x1bf7d40 WARN               rtpsource
rtpsource.c:1095:rtp_source_process_rtp: duplicate or reordered packet
0:00:03.040066881 13005      0x1bf7d40 WARN               rtpsource
rtpsource.c:1095:rtp_source_process_rtp: duplicate or reordered packet
0:00:03.202246904 13005      0x1bf7d40 WARN               rtpsource
rtpsource.c:1095:rtp_source_process_rtp: duplicate or reordered packet
0:00:03.202357532 13005      0x1bf7d40 WARN      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1463:gst_rtp_jitter_buffer_chain:<rtpjitterbuffer0> Packet
#45634 too late as #45635 was already popped, dropping
0:00:03.203067888 13005      0x1bf7d40 WARN               rtpsource
rtpsource.c:1095:rtp_source_process_rtp: duplicate or reordered packet
0:00:03.203121177 13005      0x1bf7d40 WARN      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1463:gst_rtp_jitter_buffer_chain:<rtpjitterbuffer0> Packet
#45635 too late as #45635 was already popped, dropping
0:00:03.204278378 13005      0x1bf7d40 WARN               rtpsource
rtpsource.c:1095:rtp_source_process_rtp: duplicate or reordered packet
0:00:03.205717179 13005      0x1bf7d40 WARN               rtpsource
rtpsource.c:1095:rtp_source_process_rtp: duplicate or reordered packet
0:00:03.360624540 13005      0x1bf7d40 WARN               rtpsource
rtpsource.c:1095:rtp_source_process_rtp: duplicate or reordered packet
0:00:03.360736008 13005      0x1bf7d40 WARN      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1463:gst_rtp_jitter_buffer_chain:<rtpjitterbuffer0> Packet
#45639 too late as #45640 was already popped, dropping
0:00:03.361976542 13005      0x1bf7d40 WARN               rtpsource
rtpsource.c:1095:rtp_source_process_rtp: duplicate or reordered packet
0:00:03.362038142 13005      0x1bf7d40 WARN      gstrtpjitterbuffer
gstrtpjitterbuffer.c:1463:gst_rtp_jitter_buffer_chain:<rtpjitterbuffer0> Packet
#45640 too late as #45640 was already popped, dropping
0:00:03.364235375 13005      0x1bf7d40 WARN               rtpsource
rtpsource.c:1095:rtp_source_process_rtp: duplicate or reordered packet
0:00:03.365595410 13005      0x1bf7d40 WARN               rtpsource
rtpsource.c:1095:rtp_source_process_rtp: duplicate or reordered packet

pratically no packets arrive to fakesink (even if the log said  Packet #45639
too late as #45640 was already popped, dropping or Packet #45640 too late as
#45640 was already popped, dropping) and obviously if I change the pipeline to
try to see the stream I'm unable to see anything, 

in the same network conditions vlc is perfectly able to see the stream
(wireshark confirm that vlc is using udp), and even gstreamer can see the
stream with no video artefact and no visible delay using:

rtspt://192.168.2.136/axis-media/media.amp (and so forcing tcp mode)

instead of:

rtsp://192.168.2.136/axis-media/media.amp

as url,

the rtsp source is a standard axis camera

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