[gstreamer-bugs] [Bug 571559] New: Add flags to element properties to indicate valid states for changing property

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gstreamer (core) | Ver: git
           Summary: Add flags to element properties to indicate valid states
                    for changing property
           Product: GStreamer
           Version: git
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: ds at schleef.org
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Patch (preliminary) for adding flags GST_PARAM_MUTABLE_PLAYING, etc, to the
GParamSpec of properties on GstElements.  Combined with the convenience
function gst_param_spec_is_mutable(pspec,element), set_property() functions can
quickly check if it is valid for a property to be changed in the given state. 
Also, applications can check in a similar way before attempting to change the
property.

Not yet done:

 - Print out this info in gst-inspect.

 - Fix all the elements.  Everywhere.


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