[Bug 683920] New: 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

           Summary: rmdemux can not set caps on its own pad
    Classification: Platform
           Product: GStreamer
           Version: 0.11.x
        OS/Version: All
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: gst-plugins-ugly
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: zhangyanping210 at yahoo.com.cn
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


In function gst_rmdemux_add_stream,  it will create video and audio pad, and
will set caps of them.

static void
gst_rmdemux_add_stream (GstRMDemux * rmdemux, GstRMDemuxStream * stream)
{
    if (stream->subtype == GST_RMDEMUX_STREAM_VIDEO) {
        char *name = g_strdup_printf ("video_%u", rmdemux->n_video_streams);

        stream->pad =
            gst_pad_new_from_static_template (&gst_rmdemux_videosrc_template,
name);
 ......

    } else if (stream->subtype == GST_RMDEMUX_STREAM_AUDIO) {
        char *name = g_strdup_printf ("audio_%u", rmdemux->n_audio_streams);

        stream->pad =
            gst_pad_new_from_static_template (&gst_rmdemux_audiosrc_template,
name);

    }
......
    gst_pad_use_fixed_caps (stream->pad);

    gst_pad_set_caps (stream->pad, stream_caps);
    gst_pad_set_event_function (stream->pad,
.....

}


gst_pad_new_from_static_template --> gst_pad_init will set pad flag to flushing
by call GST_PAD_SET_FLUSHING (pad);

And gst_pad_set_caps will failed if the pad flag is flushing.

So we should add GST_PAD_UNSET_FLUSHING(stream->pad) after the pad is created.

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