[Bug 759204] New: rtspsrc does not emit no-more-pads unless all streams are added

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=759204

            Bug ID: 759204
           Summary: rtspsrc does not emit no-more-pads unless all streams
                    are added
    Classification: Platform
           Product: GStreamer
           Version: 1.6.1
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: evan.callaway at ipconfigure.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Here is a simple pipeline that I can use to pull a video stream from a camera:

GST_DEBUG=rtspsrc:5 gst-launch-1.0 rtspsrc -e
location=rtsp://user:pass@192.168.103.67/rtsp/onvif?profile=stream_all debug=1
! decodebin ! fakesink

I found that there is some inconsistency in whether the no-more-pads signal is
emitted in rtspsrc; some cameras emit the signal and others do not.

Here's a sample of my debug output:

gstrtspsrc.c:2943:pad_blocked:<rtspsrc0>^[[00m pad udpsrc1:src blocked,
activating streams
gstrtspsrc.c:4280:gst_rtspsrc_activate_streams:<rtspsrc0>^[[00m activating
streams
gstrtspsrc.c:4317:gst_rtspsrc_activate_streams:<rtspsrc0>^[[00m unblocking
stream pad 0x7fd37001faf0
gstrtspsrc.c:4317:gst_rtspsrc_activate_streams:<rtspsrc0>^[[00m unblocking
stream pad 0x7fd37001e990
gstrtspsrc.c:2987:new_manager_pad:<rtspsrc0>^[[00m got new manager pad
<manager:recv_rtp_src_0_2042830296_98>
gstrtspsrc.c:2995:new_manager_pad:<rtspsrc0>^[[00m stream: 0, SSRC 79c31dd8, PT
98
gstrtspsrc.c:3013:new_manager_pad:<rtspsrc0>^[[00m stream 0x7fd37001faf0,
container 0, added 1, setup 1
gstrtspsrc.c:3013:new_manager_pad:<rtspsrc0>^[[00m stream 0x7fd37001e990,
container 0, added 0, setup 1

As you can see, we attempt to activate two streams, but only actually add one
of them, so no-more-pads is never emitted in new_manager_pad.  It seems as
though no-more-pads should be emitted when all streams have either been added
or can't be added.

Please let me know your thoughts on this.

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