[gst-devel] caps, types, props

[Wim Taymans]

Just a quick recap of the different responsabilities of the
capabilities, properties and types:

typeids:

 - are basically mime-types converted into a guint16
 - are the basic types known to gstreamer
 - selection of the plugins in autoplugging will occur 
   with the typeids

properties:

 - are used to specify extra properties of the basic typeids
 - use ranges/ints/fourcc or lists of those to descibe features
 - will be used to describe capabilities and metadata

capabilities:

 - a list of typeids with properties
 - are attached to pads
 - allow fine grained pad matching in autoplugging
 - elements will update the caps of the pads as media is
   handled.

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