This fixes caps operations when different elements advertise some
of their caps' properties differently (eg, for audio channels, either
a range from 1 to 2, or a list of 1 and 2).
https://bugzilla.gnome.org/show_bug.cgi?id=663643
Make a new GstPadProbeInfo structure and pass this in the probe callback. This
allows us to add more things later and also allow the callback to replace or
modify the passed object.
Make a separate cookie to detect chancges in the list of probes and keeping
track of what hooks have been invoked yet.
Remove the requirement to have probes on srcpads in push mode and sinkpads in
pull mode.
Add some more debug.
Keep track of what callbacks got executed. If no callback is called and we are a
blocking pad, let the item pass. This allows you to block pads on selected
items only.
Explicitly have an UPSTREAM and DOWNSTREAM PadProbeType. This allows you to only
block the pad on upstream or downstream items.
Add convenience macros to only block on downstream/upstream items.
When we do not care about the actual resulting set,
but only whether it is empty of not, we can skip a fair bit
of GValue juggling.
Add a function that does so, since we cannot just pass NULL
to the existing API as it may be part of the API contract.
https://bugzilla.gnome.org/show_bug.cgi?id=662777
gstobject.c: In function 'gst_object_has_active_automation':
gstobject.c:1076:3: error: 'return' with no value, in function returning non-void
gstcontroller.c: In function 'gst_controller_is_active':
gstcontroller.c:509:3: error: 'return' with no value, in function returning non-void
Move the controller to gstobject as a simple delegate. The controller and
controlsource are not classes in core. The controlsources stay separate as a lib
for now. This way we can avoid the qdata lookups.
Also remove controller_init(). There is no more need to link to controller for
elements.
Also sanitize the API. We now have functions to add properties like we had
methods to remove that. That avoids then ref count hacks we had in _new.
