[Bug 739765] caps: Add gst_caps_foreach() and gst_caps_map_in_place()

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=739765
  GStreamer | gstreamer (core) | unspecified

--- Comment #4 from Sebastian Dröge (slomo) <slomo at coaxion.net> 2014-12-14 12:01:38 UTC ---
I'll go with adding the attached patch and additionally
- gst_caps_filter_or_map_in_place()
- gst_structure_filter_or_map_in_place()

Works like the map_in_place(), just that it always iterates over all items and
a return value of FALSE from the callback means that the item (structure field
or caps structure) is dropped.

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