[Bug 784268] New: [API] discussion: gst_element_link_delayed

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=784268

            Bug ID: 784268
           Summary: [API] discussion: gst_element_link_delayed
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: Normal
         Component: gstreamer (core)
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: mduponchelle1 at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

The goal of this API would be to avoid requiring the use of pad-added callbacks
for elements that expose sometimes pads (eg rtpbin).

I'm not entirely sure what form the API should take, but here are a few use
cases:

* When rtpbin exposes a pad named "send_rtp_src_0", link it with a given pad
* When rtpbin exposes a pad named "send_rtp_src_0", link it with any pad in a
given element
* When rtpbin exposes a pad named "send_rtp_src_0", request a pad named
'audio_%02x' from a given element and link them.

A problematic part might be error handling :)

Thoughts?

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