[Bug 763142] New: API: add async property change notification - gst_element_add_property_notify_watch()

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=763142

            Bug ID: 763142
           Summary: API: add async property change notification -
                    gst_element_add_property_notify_watch()
    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: t.i.m at zen.co.uk
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Created attachment 323156
  --> https://bugzilla.gnome.org/attachment.cgi?id=323156&action=edit
element: add API to get property change notifications via messages

I always thought it'd be nice if we had some helper API to receive GObject
property notifications such as playbin notify::volume via the bus instead of
callbacks from a non-application thread.

This adds API for that.

Open question: should we merge add_property_notify_watch() and _add_deep_...()
? That would mean changing the gboolean include_value into a flags argument
with flags for include_value and recursive notification.

---

Be notified in the application thread via bus messages about
notify::* and deep-notify::* property changes, instead of
having to deal with it in a non-application thread.

API: gst_element_add_property_notify_watch()
API: gst_element_add_property_deep_notify_watch()
API: gst_element_remove_property_notify_watch()
API: gst_message_new_property_notify()
API: gst_message_parse_property_notify()
API: GST_MESSAGE_NOTIFY_PROPERTY

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.