[Bug 722372] New: gstpad: Got data flow before stream-start event

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=722372
  GStreamer | gstreamer (core) | git

           Summary: gstpad: Got data flow before stream-start event
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: aleix at oblong.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Just pulled and built all GStreamer master branches and I am getting these
critical warnings. It doesn't happen with 1.2.2.

The test consists of an gst-rtsp-server test-launch and a rtspsrc client:

./test-launch "( videotestsrc ! x264enc ! rtph264pay name=pay0 pt=96 )"

and

gst-launch-1.0 rtspsrc location=rtsp://localhost:8554/test latency=200
drop-on-latency=true ! decodebin ! videoconvert ! fakesink

It doesn't always happen, you might need to cancel the client and re-run it a
few times.

Similar errors happen with other pipelines.

-------


(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3974:gst_pad_push_data:<rtpjitterbuffer0:src> Got data flow before
stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3740:gst_pad_chain_data_unchecked:<rtpptdemux0:sink> Got data flow
before stream-start event

(gst-launch-1.0:33571): GStreamer-CRITICAL **: gst_pad_push_event: assertion
'GST_IS_EVENT (event)' failed

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3974:gst_pad_push_data:<rtpptdemux0:src_96> Got data flow before
stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3740:gst_pad_chain_data_unchecked:<recv_rtp_src_0_3062232036_96:proxypad4>
Got data flow before stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3974:gst_pad_push_data:<manager:recv_rtp_src_0_3062232036_96> Got data
flow before stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3740:gst_pad_chain_data_unchecked:<recv_rtp_src_0_3062232036_96:proxypad5>
Got data flow before stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3974:gst_pad_push_data:<rtspsrc0:recv_rtp_src_0_3062232036_96> Got
data flow before stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3740:gst_pad_chain_data_unchecked:<decodebin0:sink> Got data flow
before stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3974:gst_pad_push_data:<sink:proxypad0> Got data flow before
stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3740:gst_pad_chain_data_unchecked:<typefind:sink> Got data flow before
stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3974:gst_pad_push_data:<typefind:src> Got data flow before
stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3740:gst_pad_chain_data_unchecked:<rtph264depay0:sink> Got data flow
before stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3974:gst_pad_push_data:<rtph264depay0:src> Got data flow before
stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3740:gst_pad_chain_data_unchecked:<h264parse0:sink> Got data flow
before stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3974:gst_pad_push_data:<h264parse0:src> Got data flow before
stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3740:gst_pad_chain_data_unchecked:<capsfilter0:sink> Got data flow
before stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3974:gst_pad_push_data:<capsfilter0:src> Got data flow before
stream-start event

(gst-launch-1.0:33571): GStreamer-WARNING **:
gstpad.c:3740:gst_pad_chain_data_unchecked:<avdec_h264-0:sink> Got data flow
before stream-start event

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