[Bug 683920] rmdemux can not set caps on its own pad

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=683920
  GStreamer | gst-plugins-ugly | 0.11.x

--- Comment #2 from zhangyanping <zhangyanping210 at yahoo.com.cn> 2012-09-14 01:51:41 UTC ---
 The code is like this.

//=================
static void
gst_rmdemux_add_stream (GstRMDemux * rmdemux, GstRMDemuxStream * stream)
{
    ......
    gst_pad_use_fixed_caps (stream->pad);

    gst_pad_set_caps (stream->pad, stream_caps);
    gst_pad_set_event_function (stream->pad,
        GST_DEBUG_FUNCPTR (gst_rmdemux_src_event));
    gst_pad_set_query_function (stream->pad,
        GST_DEBUG_FUNCPTR (gst_rmdemux_src_query));

    GST_DEBUG_OBJECT (rmdemux, "adding pad %s with caps %" GST_PTR_FORMAT
        ", stream_id=%d", GST_PAD_NAME (stream->pad), stream_caps, stream->id);
    gst_pad_set_active (stream->pad, TRUE);
    gst_element_add_pad (GST_ELEMENT_CAST (rmdemux), stream->pad);
    ......
}

It pushs the caps event before setting the pad to active. So maybe bring
"gst_pad_set_active (stream->pad, TRUE);"  before  "gst_pad_set_caps
(stream->pad, stream_caps);".

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