[Bug 745073] New: GstDiscoverer fails to get duration for ogg fd uris

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=745073

            Bug ID: 745073
           Summary: GstDiscoverer fails to get duration for ogg fd uris
    Classification: Platform
           Product: GStreamer
           Version: 1.4.5
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: don't know
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: jpakkane at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Created attachment 297744
  --> https://bugzilla.gnome.org/attachment.cgi?id=297744&action=edit
Sample code

Using GstDiscoverer for ogg files works fine if you specify the uri as
file:///path/to/file.ogg. However if you open a fd to the same file and try to
discover uri fd://<fdnum>, then you get the following:

(gsttest:27197): GStreamer-CRITICAL **: pullrange on pad typefind:sink but it
was not activated in pull mode

This does work if you use the fd file name as an uri like this:
file:///proc/self/fd/<fdnum>.

Non-ogg files seem to work.

Attached is a piece of sample code to demonstrate the issue.

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