[Bug 670741] basetransform: save downstream metadata supported APIs

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=670741
  GStreamer | gstreamer (core) | 0.11.x

--- Comment #1 from Philippe Normand <phil at base-art.net> 2012-02-24 13:16:25 UTC ---
Created an attachment (id=208342)
 View: https://bugzilla.gnome.org/attachment.cgi?id=208342
 Review: https://bugzilla.gnome.org/review?bug=670741&attachment=208342

basetransform: save downstream proposed metadata APIs

This can be useful for sub-classes operating in non-passthrough
mode. They can chose which APIs to forward upstream based on the ones
saved by basetransform.

API: gst_base_transform_downstream_metadata_apis()

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