[Bug 728312] Null caps is returned by id3demux when query caps from it.

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=728312
  GStreamer | gst-plugins-base | 1.2.3

Tim-Philipp Müller <t.i.m> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEEDINFO
                 CC|                            |t.i.m at zen.co.uk

--- Comment #1 from Tim-Philipp Müller <t.i.m at zen.co.uk> 2014-04-16 08:12:20 UTC ---
A full debug log might be more useful.

Does your demuxer activate in pull mode or push mode?

The log shows this:
gstelementfactory.c:365:gst_element_factory_create: creating element
"aiurdemux"
gstutils.c:2761:gst_pad_query_caps:<id3demux0:src> get pad caps with filter
(NULL)
gstpad.c:2889:gst_pad_query_caps_default:<id3demux0:src> query caps caps query:
0x749024f0, 
GstQueryCaps, filter=(GstCaps)NULL, caps=(GstCaps)NULL;
gstpad.c:2906:gst_pad_query_caps_default:<id3demux0:src> fixed pad caps: trying
pad caps
gstpad.c:2942:gst_pad_query_caps_default:<id3demux0:src> using caps 0x1d36200
video/mpeg, systemstream=(boolean)true, mpegversion=(int)1
gstutils.c:2768:gst_pad_query_caps:<id3demux0:src> query returned video/mpeg,
systemstream=(boolean)true, mpegversion=(int)1

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